-------------------------------------------------------------------------------- I1 cache: 65536 B, 64 B, 4-way associative D1 cache: 32768 B, 64 B, 8-way associative LL cache: 67108864 B, 64 B, 64-way associative Command: /usr/home/liquid/.rustup/toolchains/w-profiling/bin/rustc --crate-name uint --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg feature="default" --cfg feature="std" -C metadata=dd1af054a73db9c1 -C extra-filename=-dd1af054a73db9c1 --out-dir /usr/home/liquid/tmp/.tmpFOKqfC/target/debug/deps -L dependency=/usr/home/liquid/tmp/.tmpFOKqfC/target/debug/deps --extern byteorder=/usr/home/liquid/tmp/.tmpFOKqfC/target/debug/deps/libbyteorder-d1cc89f6a212ad0b.rmeta --extern crunchy=/usr/home/liquid/tmp/.tmpFOKqfC/target/debug/deps/libcrunchy-d565e5132b6bde7d.rmeta --extern hex=/usr/home/liquid/tmp/.tmpFOKqfC/target/debug/deps/libhex-c10f3b5d1b86730c.rmeta --extern static_assertions=/usr/home/liquid/tmp/.tmpFOKqfC/target/debug/deps/libstatic_assertions-0b0d67b89cd611ba.rmeta -Adeprecated -Aunknown-lints -Zincremental-verify-ich Data file: results/cgout-w-profiling-uint-0.9.2-Check-Full Events recorded: Ir Events shown: Ir Event sort order: Ir Thresholds: 0.1 Include dirs: User annotated: Auto-annotation: on -------------------------------------------------------------------------------- Ir -------------------------------------------------------------------------------- 204,725,789 (100.0%) PROGRAM TOTALS -------------------------------------------------------------------------------- Ir file:function -------------------------------------------------------------------------------- 10,305,124 ( 5.03%) ./elf/dl-lookup.c:_dl_lookup_symbol_x 6,673,385 ( 3.26%) ./malloc/malloc.c:_int_malloc 5,307,348 ( 2.59%) ./malloc/malloc.c:_int_free 4,835,679 ( 2.36%) ./elf/dl-lookup.c:do_lookup_x 4,141,271 ( 2.02%) ./elf/../sysdeps/x86_64/dl-machine.h:_dl_relocate_object 3,488,750 ( 1.70%) ./malloc/malloc.c:malloc 3,004,749 ( 1.47%) ./string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:__memcpy_avx_unaligned_erms 2,849,965 ( 1.39%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:>::decode 2,531,883 ( 1.24%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/vec/mod.rs:>::decode 2,377,604 ( 1.16%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:>::decode 2,192,337 ( 1.07%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs:::short_write_process_buffer:: 2,139,033 ( 1.04%) ./elf/do-rel.h:_dl_relocate_object 1,716,644 ( 0.84%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/caching_source_map_view.rs:::span_data_to_lines_and_cols 1,542,879 ( 0.75%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/tokenstream.rs:::next 1,470,636 ( 0.72%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs:::short_write_process_buffer:: 1,413,564 ( 0.69%) ./malloc/malloc.c:free 1,362,217 ( 0.67%) ???:SetImpliedBits(llvm::FeatureBitset&, llvm::FeatureBitset const&, llvm::ArrayRef) 1,266,201 ( 0.62%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/parser/mod.rs:::bump 1,262,508 ( 0.62%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/parser/mod.rs:::next 1,227,257 ( 0.60%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:>::hash_stable 1,197,736 ( 0.59%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/token.rs:::clone 1,157,178 ( 0.57%) ./malloc/malloc.c:malloc_consolidate 1,151,273 ( 0.56%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/lexer/mod.rs:::next_token 1,136,994 ( 0.56%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u32 1,096,060 ( 0.54%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}> as core::iter::traits::iterator::Iterator>::fold::<(), core::iter::traits::iterator::Iterator::for_each::call as alloc::vec::spec_extend::SpecExtend, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}>>>::spec_extend::{closure#0}>::{closure#0}> 1,091,984 ( 0.53%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:::new_imported_source_file 1,088,953 ( 0.53%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:::new_imported_source_file 1,026,512 ( 0.50%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs:>::hash_stable 888,306 ( 0.43%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/tokenstream.rs:::next_with_spacing 872,921 ( 0.43%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/lexer/tokentrees.rs:::parse_token_tree 864,856 ( 0.42%) ./elf/dl-lookup.c:check_match 821,023 ( 0.40%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_lexer/src/lib.rs:::advance_token 801,363 ( 0.39%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:)>>::remove_entry::>::{closure#0}> 797,078 ( 0.39%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}> as core::iter::traits::iterator::Iterator>::fold::<(), core::iter::traits::iterator::Iterator::for_each::call as alloc::vec::spec_extend::SpecExtend, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}>>>::spec_extend::{closure#0}>::{closure#0}> 749,506 ( 0.37%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, (), core::hash::BuildHasherDefault>>::from_hash::>::{closure#0}> 748,891 ( 0.37%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_usize 728,231 ( 0.36%) ./malloc/malloc.c:unlink_chunk.constprop.0 726,778 ( 0.36%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}> as core::iter::traits::iterator::Iterator>::fold::<(), core::iter::traits::iterator::Iterator::for_each::call as alloc::vec::spec_extend::SpecExtend, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}>>>::spec_extend::{closure#0}>::{closure#0}> 640,351 ( 0.31%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/rustc-hash-1.1.0/src/lib.rs:<&str as core::hash::Hash>::hash:: 575,075 ( 0.28%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/parser/mod.rs:::bump_with 550,831 ( 0.27%) ./malloc/malloc.c:realloc 529,040 ( 0.26%) ./string/../sysdeps/x86_64/strcmp.S:strcmp 527,133 ( 0.26%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/encoder.rs:>::encode 483,074 ( 0.24%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_usize 479,952 ( 0.23%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/mod.rs:::span_data_to_lines_and_cols 459,321 ( 0.22%) ???:llvm::StringMapImpl::LookupBucketFor(llvm::StringRef) 442,671 ( 0.22%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/indexmap-1.8.0/src/map/core.rs:, alloc::vec::Vec>>::or_default 440,920 ( 0.22%) ./string/../sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S:__memcmp_avx2_movbe 424,251 ( 0.21%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/rustc_entry.rs:, core::hash::BuildHasherDefault>>::rustc_entry 419,666 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/symbol.rs:::intern 409,395 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/library/std/src/sys/unix/alloc.rs:__rdl_alloc 405,402 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs:::hash:: 404,250 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:>::encode 402,940 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_expand/src/mbe/quoted.rs:rustc_expand::mbe::quoted::parse 393,344 ( 0.19%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:::intern 388,276 ( 0.19%) ./malloc/malloc.c:_int_realloc 385,062 ( 0.19%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/source_map.rs:::new_imported_source_file 383,564 ( 0.19%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs:>::hash_stable 379,942 ( 0.19%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/lexer/tokentrees.rs:::push 377,300 ( 0.18%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs:, alloc::vec::Vec>>::or_default 368,048 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/vec/mod.rs:>::truncate 367,771 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/tuple.rs:core::slice::sort::recurse::::sort_unstable_by_key<(i64, usize), rustc_trait_selection::traits::specialize::specialization_graph_provider::{closure#0}>::{closure#0}> 362,296 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs:::intern_ty 361,233 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/cmp.rs:>::decode 361,233 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/ptr/mod.rs:>::decode 361,233 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/iter/range.rs:>::decode 358,462 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/span_encoding.rs:>::hash_stable 356,103 ( 0.17%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>::insert::>::{closure#0}> 355,947 ( 0.17%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs:, (), core::hash::BuildHasherDefault>>::from_hash::>::{closure#0}> 351,400 ( 0.17%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>::prepare_insert_slot 340,920 ( 0.17%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/tokenstream.rs:>::hash_stable 326,511 ( 0.16%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/parser/mod.rs:::next_desugared 322,539 ( 0.16%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/rc.rs: as core::ops::drop::Drop>::drop 317,520 ( 0.16%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_query_system/src/query/plumbing.rs:rustc_query_system::query::plumbing::try_execute_query::>> 316,432 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/sort.rs:core::slice::sort::recurse::::sort_unstable_by_key<(i64, usize), rustc_trait_selection::traits::specialize::specialization_graph_provider::{closure#0}>::{closure#0}> 312,196 ( 0.15%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs:>::reserve_rehash::, alloc::vec::Vec>::{closure#0}> 307,411 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/rc.rs:> as core::ops::drop::Drop>::drop 305,339 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u32 298,554 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_query_system/src/query/plumbing.rs:rustc_query_system::query::plumbing::try_execute_query::>> 297,390 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs:<[u8] as rustc_data_structures::stable_hasher::HashStable>::hash_stable 296,305 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/analyze_source_file.rs:rustc_span::analyze_source_file::analyze_source_file_generic 289,500 ( 0.14%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/md-5-0.9.1/src/utils.rs:md5::utils::compress 289,437 ( 0.14%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>::insert::>::{closure#0}> 286,490 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:::read_usize 284,354 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:>::decode 283,606 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u64 282,665 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_query_system/src/query/plumbing.rs:rustc_query_system::query::plumbing::get_query:: 281,135 ( 0.14%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs:>, (), core::hash::BuildHasherDefault>>::from_hash::>>::{closure#0}> 279,769 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs:::hash:: 279,385 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:::read_usize 273,429 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs:::_intern_substs 269,928 ( 0.13%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, rustc_query_system::dep_graph::graph::DepNodeIndex))>>::insert::, rustc_query_system::dep_graph::graph::DepNodeIndex), core::hash::BuildHasherDefault>::{closure#0}> 268,742 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs:::eq 268,532 ( 0.13%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, rustc_query_system::dep_graph::graph::DepNodeIndex))>>::insert::, rustc_query_system::dep_graph::graph::DepNodeIndex), core::hash::BuildHasherDefault>::{closure#0}> 266,946 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs:, <&rustc_middle::ty::list::List as rustc_serialize::serialize::Decodable>::decode::{closure#0}> as rustc_middle::ty::context::InternAs<[rustc_middle::ty::subst::GenericArg], &rustc_middle::ty::list::List>>::intern_with::<::mk_substs, <&rustc_middle::ty::list::List as rustc_serialize::serialize::Decodable>::decode::{closure#0}>>::{closure#0}> 263,546 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/span_encoding.rs:>::encode 262,479 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_lint/src/builtin.rs:::check_tokens 261,206 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/str/mod.rs:::next_token 259,602 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:::_intern_substs 253,216 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs:md5::utils::compress 251,708 ( 0.12%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, core::hash::BuildHasherDefault>>::rustc_entry 251,689 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_index/src/bit_set.rs:>::ensure 248,436 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/token.rs:::ident 246,491 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs:::short_write_process_buffer:: 245,740 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs:::slice_write_process_buffer 245,084 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:::cached_ty_for_shorthand::<<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable>::decode::{closure#0}> 244,935 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/codec.rs:<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable>::decode 243,683 ( 0.12%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/stacker-0.1.14/src/lib.rs:stacker::remaining_stack 239,821 ( 0.12%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>, ())>>::insert_entry::>, rustc_middle::ty::context::Interned>, (), core::hash::BuildHasherDefault>::{closure#0}> 239,686 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_query_system/src/query/plumbing.rs:rustc_query_system::query::plumbing::get_query:: 238,893 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs:::slice_write_process_buffer 238,228 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/library/std/src/thread/local.rs:rustc_span::SESSION_GLOBALS::FOO::__getit 234,408 ( 0.11%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs:>>::insert 232,332 ( 0.11%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:::cached_ty_for_shorthand::<<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable>::decode::{closure#0}> 230,431 ( 0.11%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>, (), core::hash::BuildHasherDefault>>::from_hash::>>::{closure#0}> 227,397 ( 0.11%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, ())>>::insert_entry::, rustc_middle::ty::context::Interned, (), core::hash::BuildHasherDefault>::{closure#0}> 224,244 ( 0.11%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>>::from_key_hashed_nocheck:: 223,534 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs:<&str as core::hash::Hash>::hash:: 223,124 ( 0.11%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>::reserve_rehash::>::{closure#0}> 221,684 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/collections/btree/search.rs:>::search_tree:: 221,635 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:::next_token 221,269 ( 0.11%) ./stdlib/cxa_finalize.c:__cxa_finalize 220,659 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/codec.rs:::read_u32 219,004 ( 0.11%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>>::insert 218,103 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:::advance_token 215,610 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_expand/src/mbe/macro_check.rs:rustc_expand::mbe::macro_check::check_nested_occurrences 214,731 ( 0.10%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:::kind 214,128 ( 0.10%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/indexmap-1.8.0/src/map/core/raw.rs:, alloc::vec::Vec>>::entry 207,435 ( 0.10%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/token.rs:>::encode 207,200 ( 0.10%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:::read_str 207,027 ( 0.10%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/vec/mod.rs:::bump_with 206,510 ( 0.10%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, rustc_query_system::dep_graph::graph::DepNodeIndex))>>::reserve_rehash::, rustc_query_system::dep_graph::graph::DepNodeIndex), core::hash::BuildHasherDefault>::{closure#0}> -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/std/src/sys/unix/alloc.rs -------------------------------------------------------------------------------- Ir -- line 5 ---------------------------------------- . #[stable(feature = "alloc_system_type", since = "1.28.0")] . unsafe impl GlobalAlloc for System { . #[inline] . unsafe fn alloc(&self, layout: Layout) -> *mut u8 { . // jemalloc provides alignment less than MIN_ALIGN for small allocations. . // So only rely on MIN_ALIGN if size >= align. . // Also see and . // . 233,940 ( 0.11%) if layout.align() <= MIN_ALIGN && layout.align() <= layout.size() { 175,455 ( 0.09%) libc::malloc(layout.size()) as *mut u8 . } else { . #[cfg(target_os = "macos")] . { . if layout.align() > (1 << 31) { . return ptr::null_mut(); . } . } . aligned_malloc(&layout) . } . } . . #[inline] . unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 { . // See the comment above in `alloc` for why this check looks the way it does. 3,284 ( 0.00%) if layout.align() <= MIN_ALIGN && layout.align() <= layout.size() { 4,926 ( 0.00%) libc::calloc(layout.size(), 1) as *mut u8 . } else { . let ptr = self.alloc(layout); . if !ptr.is_null() { . ptr::write_bytes(ptr, 0, layout.size()); . } . ptr . } . } . . #[inline] . unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) { 59,295 ( 0.03%) libc::free(ptr as *mut libc::c_void) . } . . #[inline] . unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 { 23,460 ( 0.01%) if layout.align() <= MIN_ALIGN && layout.align() <= new_size { 46,920 ( 0.02%) libc::realloc(ptr as *mut libc::c_void, new_size) as *mut u8 . } else { . realloc_fallback(self, ptr, layout, new_size) . } . } . } . . cfg_if::cfg_if! { . if #[cfg(any( -- line 56 ---------------------------------------- -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/str/mod.rs -------------------------------------------------------------------------------- Ir -- line 159 ---------------------------------------- . /// let s = "not empty"; . /// assert!(!s.is_empty()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_str_is_empty", since = "1.39.0")] . #[must_use] . #[inline] . pub const fn is_empty(&self) -> bool { 29,532 ( 0.01%) self.len() == 0 . } . . /// Checks that `index`-th byte is the first byte in a UTF-8 code point . /// sequence or the end of the string. . /// . /// The start and end of the string (when `index == self.len()`) are . /// considered to be boundaries. . /// -- line 175 ---------------------------------------- -- line 193 ---------------------------------------- . #[must_use] . #[stable(feature = "is_char_boundary", since = "1.9.0")] . #[inline] . pub fn is_char_boundary(&self, index: usize) -> bool { . // 0 is always ok. . // Test for 0 explicitly so that it can optimize out the check . // easily and skip reading string data for that case. . // Note that optimizing `self.get(..index)` relies on this. 147,963 ( 0.07%) if index == 0 { . return true; . } . 73,306 ( 0.04%) match self.as_bytes().get(index) { . // For `None` we have two options: . // . // - index == self.len() . // Empty strings are valid, so return true . // - index > self.len() . // In this case return false . // . // The check is placed exactly here, because it improves generated . // code on higher opt-levels. See PR #84751 for more details. 30,416 ( 0.01%) None => index == self.len(), . . // This is bit magic equivalent to: b < 128 || b >= 192 44,595 ( 0.02%) Some(&b) => (b as i8) >= -0x40, . } . } . . /// Converts a string slice to a byte slice. To convert the byte slice back . /// into a string slice, use the [`from_utf8`] function. . /// . /// # Examples . /// -- line 226 ---------------------------------------- -- line 808 ---------------------------------------- . /// . /// assert_eq!(None, iter.next()); . /// ``` . #[must_use = "this returns the split string as an iterator, \ . without modifying the original"] . #[stable(feature = "split_whitespace", since = "1.1.0")] . #[inline] . pub fn split_whitespace(&self) -> SplitWhitespace<'_> { 9 ( 0.00%) SplitWhitespace { inner: self.split(IsWhitespace).filter(IsNotEmpty) } . } . . /// Splits a string slice by ASCII whitespace. . /// . /// The iterator returned will return string slices that are sub-slices of . /// the original string slice, separated by any amount of ASCII whitespace. . /// . /// To split by Unicode `Whitespace` instead, use [`split_whitespace`]. -- line 824 ---------------------------------------- -- line 1056 ---------------------------------------- . /// ``` . /// let s = "Löwe 老虎 Léopard"; . /// let x: &[_] = &['1', '2']; . /// . /// assert_eq!(s.find(x), None); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] 6 ( 0.00%) pub fn find<'a, P: Pattern<'a>>(&'a self, pat: P) -> Option { 1 ( 0.00%) pat.into_searcher(self).next_match().map(|(i, _)| i) 2 ( 0.00%) } . . /// Returns the byte index for the first character of the rightmost match of the pattern in . /// this string slice. . /// . /// Returns [`None`] if the pattern doesn't match. . /// . /// The [pattern] can be a `&str`, [`char`], a slice of [`char`]s, or a . /// function or closure that determines if a character matches. -- line 1074 ---------------------------------------- -- line 1102 ---------------------------------------- . /// ``` . /// let s = "Löwe 老虎 Léopard"; . /// let x: &[_] = &['1', '2']; . /// . /// assert_eq!(s.rfind(x), None); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] 336 ( 0.00%) pub fn rfind<'a, P>(&'a self, pat: P) -> Option . where . P: Pattern<'a, Searcher: ReverseSearcher<'a>>, . { . pat.into_searcher(self).next_match_back().map(|(i, _)| i) 336 ( 0.00%) } . . /// An iterator over substrings of this string slice, separated by . /// characters matched by a pattern. . /// . /// The [pattern] can be a `&str`, [`char`], a slice of [`char`]s, or a . /// function or closure that determines if a character matches. . /// . /// [`char`]: prim@char -- line 1123 ---------------------------------------- -- line 1225 ---------------------------------------- . /// ``` . /// . /// Use [`split_whitespace`] for this behavior. . /// . /// [`split_whitespace`]: str::split_whitespace . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] . pub fn split<'a, P: Pattern<'a>>(&'a self, pat: P) -> Split<'a, P> { 540 ( 0.00%) Split(SplitInternal { . start: 0, . end: self.len(), . matcher: pat.into_searcher(self), . allow_trailing_empty: true, . finished: false, . }) . } . -- line 1241 ---------------------------------------- -- line 1472 ---------------------------------------- . /// . /// ``` . /// let v: Vec<&str> = "abc1defXghi".splitn(2, |c| c == '1' || c == 'X').collect(); . /// assert_eq!(v, ["abc", "defXghi"]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] . pub fn splitn<'a, P: Pattern<'a>>(&'a self, n: usize, pat: P) -> SplitN<'a, P> { 243 ( 0.00%) SplitN(SplitNInternal { iter: self.split(pat).0, count: n }) . } . . /// An iterator over substrings of this string slice, separated by a . /// pattern, starting from the end of the string, restricted to returning . /// at most `n` items. . /// . /// If `n` substrings are returned, the last substring (the `n`th substring) . /// will contain the remainder of the string. -- line 1488 ---------------------------------------- -- line 1540 ---------------------------------------- . /// ``` . /// assert_eq!("cfg".split_once('='), None); . /// assert_eq!("cfg=foo".split_once('='), Some(("cfg", "foo"))); . /// assert_eq!("cfg=foo=bar".split_once('='), Some(("cfg", "foo=bar"))); . /// ``` . #[stable(feature = "str_split_once", since = "1.52.0")] . #[inline] . pub fn split_once<'a, P: Pattern<'a>>(&'a self, delimiter: P) -> Option<(&'a str, &'a str)> { 60 ( 0.00%) let (start, end) = delimiter.into_searcher(self).next_match()?; . // SAFETY: `Searcher` is known to return valid indices. . unsafe { Some((self.get_unchecked(..start), self.get_unchecked(end..))) } . } . . /// Splits the string on the last occurrence of the specified delimiter and . /// returns prefix before delimiter and suffix after delimiter. . /// . /// # Examples -- line 1556 ---------------------------------------- -- line 1749 ---------------------------------------- . /// . /// assert_eq!("Hello\tworld", s.trim()); . /// ``` . #[inline] . #[must_use = "this returns the trimmed string as a slice, \ . without modifying the original"] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn trim(&self) -> &str { 8 ( 0.00%) self.trim_matches(|c: char| c.is_whitespace()) . } . . /// Returns a string slice with leading whitespace removed. . /// . /// 'Whitespace' is defined according to the terms of the Unicode Derived . /// Core Property `White_Space`. . /// . /// # Text directionality -- line 1765 ---------------------------------------- -- line 1825 ---------------------------------------- . /// let s = " עברית "; . /// assert!(Some('ת') == s.trim_end().chars().rev().next()); . /// ``` . #[inline] . #[must_use = "this returns the trimmed string as a new slice, \ . without modifying the original"] . #[stable(feature = "trim_direction", since = "1.30.0")] . pub fn trim_end(&self) -> &str { 45 ( 0.00%) self.trim_end_matches(|c: char| c.is_whitespace()) . } . . /// Returns a string slice with leading whitespace removed. . /// . /// 'Whitespace' is defined according to the terms of the Unicode Derived . /// Core Property `White_Space`. . /// . /// # Text directionality -- line 1841 ---------------------------------------- -- line 1945 ---------------------------------------- . /// A more complex pattern, using a closure: . /// . /// ``` . /// assert_eq!("1foo1barXX".trim_matches(|c| c == '1' || c == 'X'), "foo1bar"); . /// ``` . #[must_use = "this returns the trimmed string as a new slice, \ . without modifying the original"] . #[stable(feature = "rust1", since = "1.0.0")] 624 ( 0.00%) pub fn trim_matches<'a, P>(&'a self, pat: P) -> &'a str . where . P: Pattern<'a, Searcher: DoubleEndedSearcher<'a>>, . { . let mut i = 0; . let mut j = 0; . let mut matcher = pat.into_searcher(self); . if let Some((a, b)) = matcher.next_reject() { . i = a; -- line 1961 ---------------------------------------- -- line 1962 ---------------------------------------- . j = b; // Remember earliest known match, correct it below if . // last match is different . } . if let Some((_, b)) = matcher.next_reject_back() { . j = b; . } . // SAFETY: `Searcher` is known to return valid indices. . unsafe { self.get_unchecked(i..j) } 624 ( 0.00%) } . . /// Returns a string slice with all prefixes that match a pattern . /// repeatedly removed. . /// . /// The [pattern] can be a `&str`, [`char`], a slice of [`char`]s, or a . /// function or closure that determines if a character matches. . /// . /// [`char`]: prim@char -- line 1978 ---------------------------------------- -- line 1994 ---------------------------------------- . /// assert_eq!("123foo1bar123".trim_start_matches(char::is_numeric), "foo1bar123"); . /// . /// let x: &[_] = &['1', '2']; . /// assert_eq!("12foo1bar12".trim_start_matches(x), "foo1bar12"); . /// ``` . #[must_use = "this returns the trimmed string as a new slice, \ . without modifying the original"] . #[stable(feature = "trim_direction", since = "1.30.0")] 366 ( 0.00%) pub fn trim_start_matches<'a, P: Pattern<'a>>(&'a self, pat: P) -> &'a str { . let mut i = self.len(); . let mut matcher = pat.into_searcher(self); . if let Some((a, _)) = matcher.next_reject() { . i = a; . } . // SAFETY: `Searcher` is known to return valid indices. . unsafe { self.get_unchecked(i..self.len()) } 366 ( 0.00%) } . . /// Returns a string slice with the prefix removed. . /// . /// If the string starts with the pattern `prefix`, returns substring after the prefix, wrapped . /// in `Some`. Unlike `trim_start_matches`, this method removes the prefix exactly once. . /// . /// If the string does not start with `prefix`, returns `None`. . /// -- line 2018 ---------------------------------------- -- line 2098 ---------------------------------------- . /// A more complex pattern, using a closure: . /// . /// ``` . /// assert_eq!("1fooX".trim_end_matches(|c| c == '1' || c == 'X'), "1foo"); . /// ``` . #[must_use = "this returns the trimmed string as a new slice, \ . without modifying the original"] . #[stable(feature = "trim_direction", since = "1.30.0")] 405 ( 0.00%) pub fn trim_end_matches<'a, P>(&'a self, pat: P) -> &'a str . where . P: Pattern<'a, Searcher: ReverseSearcher<'a>>, . { . let mut j = 0; . let mut matcher = pat.into_searcher(self); . if let Some((_, b)) = matcher.next_reject_back() { . j = b; . } . // SAFETY: `Searcher` is known to return valid indices. . unsafe { self.get_unchecked(0..j) } 450 ( 0.00%) } . . /// Returns a string slice with all prefixes that match a pattern . /// repeatedly removed. . /// . /// The [pattern] can be a `&str`, [`char`], a slice of [`char`]s, or a . /// function or closure that determines if a character matches. . /// . /// [`char`]: prim@char -- line 2125 ---------------------------------------- -- line 2240 ---------------------------------------- . /// ``` . /// let nope = "j".parse::(); . /// . /// assert!(nope.is_err()); . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn parse(&self) -> Result { 18 ( 0.00%) FromStr::from_str(self) . } . . /// Checks if all characters in this string are within the ASCII range. . /// . /// # Examples . /// . /// ``` . /// let ascii = "hello!\n"; -- line 2256 ---------------------------------------- -- line 2420 ---------------------------------------- . /// Using `to_string`: . /// . /// ``` . /// assert_eq!("❤\n!".escape_default().to_string(), "\\u{2764}\\n!"); . /// ``` . #[must_use = "this returns the escaped string as an iterator, \ . without modifying the original"] . #[stable(feature = "str_escape", since = "1.34.0")] 20 ( 0.00%) pub fn escape_default(&self) -> EscapeDefault<'_> { 80 ( 0.00%) EscapeDefault { inner: self.chars().flat_map(CharEscapeDefault) } 20 ( 0.00%) } . . /// Return an iterator that escapes each char in `self` with [`char::escape_unicode`]. . /// . /// # Examples . /// . /// As an iterator: . /// . /// ``` -- line 2438 ---------------------------------------- 1,524 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/caching_source_map_view.rs -------------------------------------------------------------------------------- Ir -- line 27 ---------------------------------------- . impl CacheEntry { . #[inline] . fn update( . &mut self, . new_file_and_idx: Option<(Lrc, usize)>, . pos: BytePos, . time_stamp: usize, . ) { 3,156 ( 0.00%) if let Some((file, file_idx)) = new_file_and_idx { 371 ( 0.00%) self.file = file; 601 ( 0.00%) self.file_index = file_idx; . } . 2,705 ( 0.00%) let line_index = self.file.lookup_line(pos).unwrap(); . let line_bounds = self.file.line_bounds(line_index); 6,058 ( 0.00%) self.line_number = line_index + 1; 9,047 ( 0.00%) self.line = line_bounds; . self.touch(time_stamp); . } . . #[inline] . fn touch(&mut self, time_stamp: usize) { 44,684 ( 0.02%) self.time_stamp = time_stamp; . } . } . . #[derive(Clone)] . pub struct CachingSourceMapView<'sm> { . source_map: &'sm SourceMap, . line_cache: [CacheEntry; 3], . time_stamp: usize, . } . . impl<'sm> CachingSourceMapView<'sm> { 284 ( 0.00%) pub fn new(source_map: &'sm SourceMap) -> CachingSourceMapView<'sm> { . let files = source_map.files(); 142 ( 0.00%) let first_file = files[0].clone(); . let entry = CacheEntry { . time_stamp: 0, . line_number: 0, . line: BytePos(0)..BytePos(0), . file: first_file, . file_index: 0, . }; . 710 ( 0.00%) CachingSourceMapView { . source_map, 994 ( 0.00%) line_cache: [entry.clone(), entry.clone(), entry], . time_stamp: 0, . } 568 ( 0.00%) } . . pub fn byte_pos_to_line_and_col( . &mut self, . pos: BytePos, . ) -> Option<(Lrc, usize, BytePos)> { . self.time_stamp += 1; . . // Check if the position is in one of the cached lines -- line 85 ---------------------------------------- -- line 106 ---------------------------------------- . }; . . let cache_entry = &mut self.line_cache[oldest]; . cache_entry.update(new_file_and_idx, pos, self.time_stamp); . . Some((cache_entry.file.clone(), cache_entry.line_number, pos - cache_entry.line.start)) . } . 166,831 ( 0.08%) pub fn span_data_to_lines_and_cols( . &mut self, . span_data: &SpanData, . ) -> Option<(Lrc, usize, BytePos, usize, BytePos)> { 95,332 ( 0.05%) self.time_stamp += 1; . . // Check if lo and hi are in the cached lines. 23,833 ( 0.01%) let lo_cache_idx = self.cache_entry_index(span_data.lo); 23,833 ( 0.01%) let hi_cache_idx = self.cache_entry_index(span_data.hi); . 41,704 ( 0.02%) if lo_cache_idx != -1 && hi_cache_idx != -1 { . // Cache hit for span lo and hi. Check if they belong to the same file. . let result = { 41,702 ( 0.02%) let lo = &self.line_cache[lo_cache_idx as usize]; . let hi = &self.line_cache[hi_cache_idx as usize]; . 125,106 ( 0.06%) if lo.file_index != hi.file_index { . return None; . } . . ( 41,702 ( 0.02%) lo.file.clone(), . lo.line_number, . span_data.lo - lo.line.start, 20,851 ( 0.01%) hi.line_number, . span_data.hi - hi.line.start, . ) . }; . 20,851 ( 0.01%) self.line_cache[lo_cache_idx as usize].touch(self.time_stamp); 20,851 ( 0.01%) self.line_cache[hi_cache_idx as usize].touch(self.time_stamp); . 83,404 ( 0.04%) return Some(result); . } . . // No cache hit or cache hit for only one of span lo and hi. 5,962 ( 0.00%) let oldest = if lo_cache_idx != -1 || hi_cache_idx != -1 { . let avoid_idx = if lo_cache_idx != -1 { lo_cache_idx } else { hi_cache_idx }; . self.oldest_cache_entry_index_avoid(avoid_idx as usize) . } else { . self.oldest_cache_entry_index() . }; . . // If the entry doesn't point to the correct file, get the new file and index. . // Return early if the file containing beginning of span doesn't contain end of span. 23,840 ( 0.01%) let new_file_and_idx = if !file_contains(&self.line_cache[oldest].file, span_data.lo) { 1,385 ( 0.00%) let new_file_and_idx = self.file_for_position(span_data.lo)?; 1,662 ( 0.00%) if !file_contains(&new_file_and_idx.0, span_data.hi) { . return None; . } . 1,108 ( 0.00%) Some(new_file_and_idx) . } else { . let file = &self.line_cache[oldest].file; 8,115 ( 0.00%) if !file_contains(&file, span_data.hi) { . return None; . } . 8,115 ( 0.00%) None . }; . . // Update the cache entries. 14,910 ( 0.01%) let (lo_idx, hi_idx) = match (lo_cache_idx, hi_cache_idx) { . // Oldest cache entry is for span_data.lo line. . (-1, -1) => { . let lo = &mut self.line_cache[oldest]; . lo.update(new_file_and_idx, span_data.lo, self.time_stamp); . 8,682 ( 0.00%) if !lo.line.contains(&span_data.hi) { . let new_file_and_idx = Some((lo.file.clone(), lo.file_index)); . let next_oldest = self.oldest_cache_entry_index_avoid(oldest); . let hi = &mut self.line_cache[next_oldest]; . hi.update(new_file_and_idx, span_data.hi, self.time_stamp); . (oldest, next_oldest) . } else { . (oldest, oldest) . } . } . // Oldest cache entry is for span_data.lo line. . (-1, _) => { . let lo = &mut self.line_cache[oldest]; . lo.update(new_file_and_idx, span_data.lo, self.time_stamp); 2 ( 0.00%) let hi = &mut self.line_cache[hi_cache_idx as usize]; 3 ( 0.00%) hi.touch(self.time_stamp); . (oldest, hi_cache_idx as usize) . } . // Oldest cache entry is for span_data.hi line. . (_, -1) => { . let hi = &mut self.line_cache[oldest]; 87 ( 0.00%) hi.update(new_file_and_idx, span_data.hi, self.time_stamp); 174 ( 0.00%) let lo = &mut self.line_cache[lo_cache_idx as usize]; 348 ( 0.00%) lo.touch(self.time_stamp); . (lo_cache_idx as usize, oldest) . } . _ => { . panic!(); . } . }; . . let lo = &self.line_cache[lo_idx]; . let hi = &self.line_cache[hi_idx]; . . // Span lo and hi may equal line end when last line doesn't . // end in newline, hence the inclusive upper bounds below. 5,964 ( 0.00%) assert!(span_data.lo >= lo.line.start); 2,982 ( 0.00%) assert!(span_data.lo <= lo.line.end); 5,964 ( 0.00%) assert!(span_data.hi >= hi.line.start); 2,982 ( 0.00%) assert!(span_data.hi <= hi.line.end); 14,910 ( 0.01%) assert!(lo.file.contains(span_data.lo)); 8,946 ( 0.00%) assert!(lo.file.contains(span_data.hi)); 8,946 ( 0.00%) assert_eq!(lo.file_index, hi.file_index); . 8,946 ( 0.00%) Some(( 2,982 ( 0.00%) lo.file.clone(), . lo.line_number, . span_data.lo - lo.line.start, 2,982 ( 0.00%) hi.line_number, . span_data.hi - hi.line.start, . )) 214,497 ( 0.10%) } . . fn cache_entry_index(&self, pos: BytePos) -> isize { . for (idx, cache_entry) in self.line_cache.iter().enumerate() { 277,538 ( 0.14%) if cache_entry.line.contains(&pos) { . return idx as isize; . } . } . . -1 . } . . fn oldest_cache_entry_index(&self) -> usize { . let mut oldest = 0; . . for idx in 1..self.line_cache.len() { 17,364 ( 0.01%) if self.line_cache[idx].time_stamp < self.line_cache[oldest].time_stamp { . oldest = idx; . } . } . . oldest . } . . fn oldest_cache_entry_index_avoid(&self, avoid_idx: usize) -> usize { . let mut oldest = if avoid_idx != 0 { 0 } else { 1 }; . . for idx in 0..self.line_cache.len() { 795 ( 0.00%) if idx != avoid_idx 400 ( 0.00%) && self.line_cache[idx].time_stamp < self.line_cache[oldest].time_stamp . { . oldest = idx; . } . } . . oldest . } . 1,385 ( 0.00%) fn file_for_position(&self, pos: BytePos) -> Option<(Lrc, usize)> { 277 ( 0.00%) if !self.source_map.files().is_empty() { 554 ( 0.00%) let file_idx = self.source_map.lookup_source_file_idx(pos); . let file = &self.source_map.files()[file_idx]; . 2,216 ( 0.00%) if file_contains(file, pos) { . return Some((file.clone(), file_idx)); . } . } . . None 1,385 ( 0.00%) } . } . . #[inline] . fn file_contains(file: &SourceFile, pos: BytePos) -> bool { . // `SourceMap::lookup_source_file_idx` and `SourceFile::contains` both consider the position . // one past the end of a file to belong to it. Normally, that's what we want. But for the . // purposes of converting a byte position to a line and column number, we can't come up with a . // line and column number if the file is empty, because an empty file doesn't contain any -- line 290 ---------------------------------------- 293,985 ( 0.14%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs -------------------------------------------------------------------------------- Ir -- line 187 ---------------------------------------- . /// ``` . pub struct HashMap { . pub(crate) hash_builder: S, . pub(crate) table: RawTable<(K, V), A>, . } . . impl Clone for HashMap { . fn clone(&self) -> Self { 186 ( 0.00%) HashMap { . hash_builder: self.hash_builder.clone(), 39 ( 0.00%) table: self.table.clone(), . } . } . . fn clone_from(&mut self, source: &Self) { . self.table.clone_from(&source.table); . . // Update hash_builder only if we successfully cloned all elements. . self.hash_builder.clone_from(&source.hash_builder); -- line 205 ---------------------------------------- -- line 210 ---------------------------------------- . /// instances of any functions like RawTable::reserve from being generated . #[cfg_attr(feature = "inline-more", inline)] . pub(crate) fn make_hasher(hash_builder: &S) -> impl Fn(&(Q, V)) -> u64 + '_ . where . K: Borrow, . Q: Hash, . S: BuildHasher, . { 8,217 ( 0.00%) move |val| make_hash::(hash_builder, &val.0) . } . . /// Ensures that a single closure type across uses of this which, in turn prevents multiple . /// instances of any functions like RawTable::reserve from being generated . #[cfg_attr(feature = "inline-more", inline)] . fn equivalent_key(k: &Q) -> impl Fn(&(K, V)) -> bool + '_ . where . K: Borrow, . Q: ?Sized + Eq, . { 23,162 ( 0.01%) move |x| k.eq(x.0.borrow()) . } . . /// Ensures that a single closure type across uses of this which, in turn prevents multiple . /// instances of any functions like RawTable::reserve from being generated . #[cfg_attr(feature = "inline-more", inline)] . fn equivalent(k: &Q) -> impl Fn(&K) -> bool + '_ . where . K: Borrow, . Q: ?Sized + Eq, . { 23,876 ( 0.01%) move |x| k.eq(x.borrow()) . } . . #[cfg(not(feature = "nightly"))] . #[cfg_attr(feature = "inline-more", inline)] . pub(crate) fn make_hash(hash_builder: &S, val: &Q) -> u64 . where . K: Borrow, . Q: Hash + ?Sized, -- line 248 ---------------------------------------- -- line 251 ---------------------------------------- . use core::hash::Hasher; . let mut state = hash_builder.build_hasher(); . val.hash(&mut state); . state.finish() . } . . #[cfg(feature = "nightly")] . #[cfg_attr(feature = "inline-more", inline)] 2 ( 0.00%) pub(crate) fn make_hash(hash_builder: &S, val: &Q) -> u64 . where . K: Borrow, . Q: Hash + ?Sized, . S: BuildHasher, . { . hash_builder.hash_one(val) 4 ( 0.00%) } . . #[cfg(not(feature = "nightly"))] . #[cfg_attr(feature = "inline-more", inline)] . pub(crate) fn make_insert_hash(hash_builder: &S, val: &K) -> u64 . where . K: Hash, . S: BuildHasher, . { -- line 274 ---------------------------------------- -- line 367 ---------------------------------------- . /// let s = DefaultHashBuilder::default(); . /// let mut map = HashMap::with_hasher(s); . /// map.insert(1, 2); . /// ``` . /// . /// [`BuildHasher`]: ../../std/hash/trait.BuildHasher.html . #[cfg_attr(feature = "inline-more", inline)] . pub const fn with_hasher(hash_builder: S) -> Self { 9,153 ( 0.00%) Self { . hash_builder, . table: RawTable::new(), . } . } . . /// Creates an empty `HashMap` with the specified capacity, using `hash_builder` . /// to hash the keys. . /// -- line 383 ---------------------------------------- -- line 437 ---------------------------------------- . /// use hashbrown::hash_map::DefaultHashBuilder; . /// . /// let s = DefaultHashBuilder::default(); . /// let mut map = HashMap::with_hasher(s); . /// map.insert(1, 2); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] . pub fn with_hasher_in(hash_builder: S, alloc: A) -> Self { 61 ( 0.00%) Self { . hash_builder, . table: RawTable::new_in(alloc), . } . } . . /// Creates an empty `HashMap` with the specified capacity, using `hash_builder` . /// to hash the keys. It will be allocated with the given allocator. . /// -- line 453 ---------------------------------------- -- line 663 ---------------------------------------- . /// . /// let mut a = HashMap::new(); . /// assert_eq!(a.len(), 0); . /// a.insert(1, "a"); . /// assert_eq!(a.len(), 1); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] . pub fn len(&self) -> usize { 1,096 ( 0.00%) self.table.len() . } . . /// Returns `true` if the map contains no elements. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; -- line 679 ---------------------------------------- -- line 680 ---------------------------------------- . /// . /// let mut a = HashMap::new(); . /// assert!(a.is_empty()); . /// a.insert(1, "a"); . /// assert!(!a.is_empty()); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] . pub fn is_empty(&self) -> bool { 3,880 ( 0.00%) self.len() == 0 . } . . /// Clears the map, returning all key-value pairs as an iterator. Keeps the . /// allocated memory for reuse. . /// . /// # Examples . /// . /// ``` -- line 696 ---------------------------------------- -- line 790 ---------------------------------------- . /// use hashbrown::HashMap; . /// . /// let mut a = HashMap::new(); . /// a.insert(1, "a"); . /// a.clear(); . /// assert!(a.is_empty()); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 6 ( 0.00%) pub fn clear(&mut self) { . self.table.clear(); 6 ( 0.00%) } . . /// Creates a consuming iterator visiting all the keys in arbitrary order. . /// The map cannot be used after calling this. . /// The iterator element type is `K`. . /// . /// # Examples . /// . /// ``` -- line 808 ---------------------------------------- -- line 963 ---------------------------------------- . /// } . /// . /// assert_eq!(letters[&'s'], 2); . /// assert_eq!(letters[&'t'], 3); . /// assert_eq!(letters[&'u'], 1); . /// assert_eq!(letters.get(&'y'), None); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 36 ( 0.00%) pub fn entry(&mut self, key: K) -> Entry<'_, K, V, S, A> { . let hash = make_insert_hash::(&self.hash_builder, &key); . if let Some(elem) = self.table.find(hash, equivalent_key(&key)) { . Entry::Occupied(OccupiedEntry { . hash, . key: Some(key), . elem, . table: self, . }) . } else { 45 ( 0.00%) Entry::Vacant(VacantEntry { . hash, . key, . table: self, . }) . } 45 ( 0.00%) } . . /// Gets the given key's corresponding entry by reference in the map for in-place manipulation. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; . /// -- line 995 ---------------------------------------- -- line 1047 ---------------------------------------- . /// ``` . #[inline] . pub fn get(&self, k: &Q) -> Option<&V> . where . K: Borrow, . Q: Hash + Eq, . { . // Avoid `Option::map` because it bloats LLVM IR. 30,711 ( 0.02%) match self.get_inner(k) { . Some(&(_, ref v)) => Some(v), . None => None, . } . } . . /// Returns the key-value pair corresponding to the supplied key. . /// . /// The supplied key may be any borrowed form of the map's key type, but -- line 1063 ---------------------------------------- -- line 1091 ---------------------------------------- . } . . #[inline] . fn get_inner(&self, k: &Q) -> Option<&(K, V)> . where . K: Borrow, . Q: Hash + Eq, . { 76,262 ( 0.04%) if self.table.is_empty() { . None . } else { 1 ( 0.00%) let hash = make_hash::(&self.hash_builder, k); . self.table.get(hash, equivalent_key(k)) . } . } . . /// Returns the key-value pair corresponding to the supplied key, with a mutable reference to value. . /// . /// The supplied key may be any borrowed form of the map's key type, but . /// [`Hash`] and [`Eq`] on the borrowed form *must* match those for -- line 1110 ---------------------------------------- -- line 1155 ---------------------------------------- . /// use hashbrown::HashMap; . /// . /// let mut map = HashMap::new(); . /// map.insert(1, "a"); . /// assert_eq!(map.contains_key(&1), true); . /// assert_eq!(map.contains_key(&2), false); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 22,392 ( 0.01%) pub fn contains_key(&self, k: &Q) -> bool . where . K: Borrow, . Q: Hash + Eq, . { . self.get_inner(k).is_some() 36,402 ( 0.02%) } . . /// Returns a mutable reference to the value corresponding to the key. . /// . /// The key may be any borrowed form of the map's key type, but . /// [`Hash`] and [`Eq`] on the borrowed form *must* match those for . /// the key type. . /// . /// [`Eq`]: https://doc.rust-lang.org/std/cmp/trait.Eq.html -- line 1177 ---------------------------------------- -- line 1185 ---------------------------------------- . /// let mut map = HashMap::new(); . /// map.insert(1, "a"); . /// if let Some(x) = map.get_mut(&1) { . /// *x = "b"; . /// } . /// assert_eq!(map[&1], "b"); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 20 ( 0.00%) pub fn get_mut(&mut self, k: &Q) -> Option<&mut V> . where . K: Borrow, . Q: Hash + Eq, . { . // Avoid `Option::map` because it bloats LLVM IR. 60 ( 0.00%) match self.get_inner_mut(k) { . Some(&mut (_, ref mut v)) => Some(v), . None => None, . } 40 ( 0.00%) } . . #[inline] . fn get_inner_mut(&mut self, k: &Q) -> Option<&mut (K, V)> . where . K: Borrow, . Q: Hash + Eq, . { 20 ( 0.00%) if self.table.is_empty() { . None . } else { . let hash = make_hash::(&self.hash_builder, k); . self.table.get_mut(hash, equivalent_key(k)) . } . } . . /// Attempts to get mutable references to `N` values in the map at once. -- line 1219 ---------------------------------------- -- line 1495 ---------------------------------------- . /// assert_eq!(map.insert(37, "a"), None); . /// assert_eq!(map.is_empty(), false); . /// . /// map.insert(37, "b"); . /// assert_eq!(map.insert(37, "c"), Some("b")); . /// assert_eq!(map[&37], "c"); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 388,784 ( 0.19%) pub fn insert(&mut self, k: K, v: V) -> Option { . let hash = make_insert_hash::(&self.hash_builder, &k); 42 ( 0.00%) if let Some((_, item)) = self.table.get_mut(hash, equivalent_key(&k)) { . Some(mem::replace(item, v)) . } else { 241,168 ( 0.12%) self.table 194,735 ( 0.10%) .insert(hash, (k, v), make_hasher::(&self.hash_builder)); 19,687 ( 0.01%) None . } 370,929 ( 0.18%) } . . /// Insert a key-value pair into the map without checking . /// if the key already exists in the map. . /// . /// Returns a reference to the key and value just inserted. . /// . /// This operation is safe if a key does not exist in the map. . /// -- line 1520 ---------------------------------------- -- line 1592 ---------------------------------------- . /// use hashbrown::HashMap; . /// . /// let mut map = HashMap::new(); . /// map.insert(1, "a"); . /// assert_eq!(map.remove(&1), Some("a")); . /// assert_eq!(map.remove(&1), None); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 2,808 ( 0.00%) pub fn remove(&mut self, k: &Q) -> Option . where . K: Borrow, . Q: Hash + Eq, . { . // Avoid `Option::map` because it bloats LLVM IR. 112,181 ( 0.05%) match self.remove_entry(k) { 1,220 ( 0.00%) Some((_, v)) => Some(v), 2,548 ( 0.00%) None => None, . } 6,482 ( 0.00%) } . . /// Removes a key from the map, returning the stored key and value if the . /// key was previously in the map. . /// . /// The key may be any borrowed form of the map's key type, but . /// [`Hash`] and [`Eq`] on the borrowed form *must* match those for . /// the key type. . /// -- line 1618 ---------------------------------------- -- line 1631 ---------------------------------------- . /// ``` . #[cfg_attr(feature = "inline-more", inline)] . pub fn remove_entry(&mut self, k: &Q) -> Option<(K, V)> . where . K: Borrow, . Q: Hash + Eq, . { . let hash = make_hash::(&self.hash_builder, k); 23,910 ( 0.01%) self.table.remove_entry(hash, equivalent_key(k)) . } . } . . impl HashMap { . /// Creates a raw entry builder for the HashMap. . /// . /// Raw entries provide the lowest level of control for searching and . /// manipulating a map. They must be manually initialized with a hash and -- line 1647 ---------------------------------------- -- line 2209 ---------------------------------------- . /// Creates a `RawEntryMut` from the given key and its hash. . #[inline] . #[allow(clippy::wrong_self_convention)] . pub fn from_key_hashed_nocheck(self, hash: u64, k: &Q) -> RawEntryMut<'a, K, V, S, A> . where . K: Borrow, . Q: Eq, . { 114,572 ( 0.06%) self.from_hash(hash, equivalent(k)) . } . } . . impl<'a, K, V, S, A: Allocator + Clone> RawEntryBuilderMut<'a, K, V, S, A> { . /// Creates a `RawEntryMut` from the given hash. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::wrong_self_convention)] 294,004 ( 0.14%) pub fn from_hash(self, hash: u64, is_match: F) -> RawEntryMut<'a, K, V, S, A> . where . for<'b> F: FnMut(&'b K) -> bool, . { . self.search(hash, is_match) 315,433 ( 0.15%) } . . #[cfg_attr(feature = "inline-more", inline)] . fn search(self, hash: u64, mut is_match: F) -> RawEntryMut<'a, K, V, S, A> . where . for<'b> F: FnMut(&'b K) -> bool, . { 27,672 ( 0.01%) match self.map.table.find(hash, |(k, _)| is_match(k)) { 138,921 ( 0.07%) Some(elem) => RawEntryMut::Occupied(RawOccupiedEntryMut { . elem, . table: &mut self.map.table, . hash_builder: &self.map.hash_builder, . }), 47,310 ( 0.02%) None => RawEntryMut::Vacant(RawVacantEntryMut { . table: &mut self.map.table, . hash_builder: &self.map.hash_builder, . }), . } . } . } . . impl<'a, K, V, S, A: Allocator + Clone> RawEntryBuilder<'a, K, V, S, A> { -- line 2251 ---------------------------------------- -- line 2260 ---------------------------------------- . { . let hash = make_hash::(&self.map.hash_builder, k); . self.from_key_hashed_nocheck(hash, k) . } . . /// Access an entry by a key and its hash. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::wrong_self_convention)] 57,122 ( 0.03%) pub fn from_key_hashed_nocheck(self, hash: u64, k: &Q) -> Option<(&'a K, &'a V)> . where . K: Borrow, . Q: Eq, . { 82,679 ( 0.04%) self.from_hash(hash, equivalent(k)) 108,332 ( 0.05%) } . . #[cfg_attr(feature = "inline-more", inline)] . fn search(self, hash: u64, mut is_match: F) -> Option<(&'a K, &'a V)> . where . F: FnMut(&K) -> bool, . { 99,727 ( 0.05%) match self.map.table.get(hash, |(k, _)| is_match(k)) { . Some(&(ref key, ref value)) => Some((key, value)), . None => None, . } . } . . /// Access an entry by hash. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::wrong_self_convention)] -- line 2289 ---------------------------------------- -- line 2624 ---------------------------------------- . /// and returns a mutable reference to it. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::shadow_unrelated)] . pub fn insert_hashed_nocheck(self, hash: u64, key: K, value: V) -> (&'a mut K, &'a mut V) . where . K: Hash, . S: BuildHasher, . { 75,901 ( 0.04%) let &mut (ref mut k, ref mut v) = self.table.insert_entry( . hash, . (key, value), . make_hasher::(self.hash_builder), . ); . (k, v) . } . . /// Set the value of an entry with a custom hasher function. -- line 2640 ---------------------------------------- -- line 2974 ---------------------------------------- . /// map.insert("a", 1); . /// map.insert("b", 2); . /// map.insert("c", 3); . /// . /// // Not possible with .iter() . /// let vec: Vec<(&str, i32)> = map.into_iter().collect(); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 112 ( 0.00%) fn into_iter(self) -> IntoIter { 2,705 ( 0.00%) IntoIter { 1,827 ( 0.00%) inner: self.table.into_iter(), . } 336 ( 0.00%) } . } . . impl<'a, K, V> Iterator for Iter<'a, K, V> { . type Item = (&'a K, &'a V); . . #[cfg_attr(feature = "inline-more", inline)] . fn next(&mut self) -> Option<(&'a K, &'a V)> { . // Avoid `Option::map` because it bloats LLVM IR. 6,844 ( 0.00%) match self.inner.next() { . Some(x) => unsafe { . let r = x.as_ref(); 61 ( 0.00%) Some((&r.0, &r.1)) . }, . None => None, . } . } . #[cfg_attr(feature = "inline-more", inline)] . fn size_hint(&self) -> (usize, Option) { . self.inner.size_hint() . } -- line 3006 ---------------------------------------- -- line 3051 ---------------------------------------- . } . } . . impl Iterator for IntoIter { . type Item = (K, V); . . #[cfg_attr(feature = "inline-more", inline)] . fn next(&mut self) -> Option<(K, V)> { 136 ( 0.00%) self.inner.next() . } . #[cfg_attr(feature = "inline-more", inline)] . fn size_hint(&self) -> (usize, Option) { . self.inner.size_hint() . } . } . impl ExactSizeIterator for IntoIter { . #[cfg_attr(feature = "inline-more", inline)] -- line 3067 ---------------------------------------- -- line 4557 ---------------------------------------- . /// keys with new values returned from the iterator. . impl Extend<(K, V)> for HashMap . where . K: Eq + Hash, . S: BuildHasher, . A: Allocator + Clone, . { . #[cfg_attr(feature = "inline-more", inline)] 2,064 ( 0.00%) fn extend>(&mut self, iter: T) { . // Keys may be already present or show multiple times in the iterator. . // Reserve the entire hint lower bound if the map is empty. . // Otherwise reserve half the hint (rounded up), so the map . // will only resize twice in the worst case. 1,961 ( 0.00%) let iter = iter.into_iter(); 969 ( 0.00%) let reserve = if self.is_empty() { . iter.size_hint().0 . } else { 7 ( 0.00%) (iter.size_hint().0 + 1) / 2 . }; . self.reserve(reserve); . iter.for_each(move |(k, v)| { 16,472 ( 0.01%) self.insert(k, v); . }); 1,327 ( 0.00%) } . . #[inline] . #[cfg(feature = "nightly")] . fn extend_one(&mut self, (k, v): (K, V)) { . self.insert(k, v); . } . . #[inline] -- line 4588 ---------------------------------------- 146,073 ( 0.07%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/lexer/tokentrees.rs -------------------------------------------------------------------------------- Ir -- line 8 ---------------------------------------- . }; . use rustc_ast_pretty::pprust::token_to_string; . use rustc_data_structures::fx::FxHashMap; . use rustc_errors::PResult; . use rustc_span::Span; . . impl<'a> StringReader<'a> { . pub(super) fn into_token_trees(self) -> (PResult<'a, TokenStream>, Vec) { 76 ( 0.00%) let mut tt_reader = TokenTreesReader { . string_reader: self, 4 ( 0.00%) token: Token::dummy(), . open_braces: Vec::new(), . unmatched_braces: Vec::new(), . matching_delim_spans: Vec::new(), . last_unclosed_found_span: None, . last_delim_empty_block_spans: FxHashMap::default(), . matching_block_spans: Vec::new(), . }; 4 ( 0.00%) let res = tt_reader.parse_all_token_trees(); 24 ( 0.00%) (res, tt_reader.unmatched_braces) . } . } . . struct TokenTreesReader<'a> { . string_reader: StringReader<'a>, . token: Token, . /// Stack of open delimiters and their spans. Used for error message. . open_braces: Vec<(token::DelimToken, Span)>, -- line 35 ---------------------------------------- -- line 43 ---------------------------------------- . last_delim_empty_block_spans: FxHashMap, . /// Collect the spans of braces (Open, Close). Used only . /// for detecting if blocks are empty and only braces. . matching_block_spans: Vec<(Span, Span)>, . } . . impl<'a> TokenTreesReader<'a> { . // Parse a stream of tokens into a list of `TokenTree`s, up to an `Eof`. 32 ( 0.00%) fn parse_all_token_trees(&mut self) -> PResult<'a, TokenStream> { . let mut buf = TokenStreamBuilder::default(); . . self.bump(); 710 ( 0.00%) while self.token != token::Eof { 2,808 ( 0.00%) buf.push(self.parse_token_tree()?); . } . . Ok(buf.into_token_stream()) 36 ( 0.00%) } . . // Parse a stream of tokens into a list of `TokenTree`s, up to a `CloseDelim`. . fn parse_token_trees_until_close_delim(&mut self) -> TokenStream { . let mut buf = TokenStreamBuilder::default(); . loop { 24,322 ( 0.01%) if let token::CloseDelim(..) = self.token.kind { . return buf.into_token_stream(); . } . 53,815 ( 0.03%) match self.parse_token_tree() { 96,867 ( 0.05%) Ok(tree) => buf.push(tree), . Err(mut e) => { . e.emit(); . return buf.into_token_stream(); . } . } . } . } . 100,026 ( 0.05%) fn parse_token_tree(&mut self) -> PResult<'a, TreeAndSpacing> { 22,228 ( 0.01%) let sm = self.string_reader.sess.source_map(); . 94,434 ( 0.05%) match self.token.kind { . token::Eof => { . let msg = "this file contains an unclosed delimiter"; . let mut err = . self.string_reader.sess.span_diagnostic.struct_span_err(self.token.span, msg); . for &(_, sp) in &self.open_braces { . err.span_label(sp, "unclosed delimiter"); . self.unmatched_braces.push(UnmatchedBrace { . expected_delim: token::DelimToken::Brace, -- line 91 ---------------------------------------- -- line 113 ---------------------------------------- . err.span_label( . *close_sp, . "...as it matches this but it has different indentation", . ); . } . } . Err(err) . } 1,398 ( 0.00%) token::OpenDelim(delim) => { . // The span for beginning of the delimited section 1,398 ( 0.00%) let pre_span = self.token.span; . . // Parse the open delimiter. 9,786 ( 0.00%) self.open_braces.push((delim, self.token.span)); . self.bump(); . . // Parse the token trees within the delimiters. . // We stop at any delimiter so we can try to recover if the user . // uses an incorrect delimiter. 1,398 ( 0.00%) let tts = self.parse_token_trees_until_close_delim(); . . // Expand to cover the entire delimited token tree 6,990 ( 0.00%) let delim_span = DelimSpan::from_pair(pre_span, self.token.span); . 2,796 ( 0.00%) match self.token.kind { . // Correct delimiter. 2,796 ( 0.00%) token::CloseDelim(d) if d == delim => { . let (open_brace, open_brace_span) = self.open_braces.pop().unwrap(); 2,796 ( 0.00%) let close_brace_span = self.token.span; . 4,194 ( 0.00%) if tts.is_empty() { 333 ( 0.00%) let empty_block_span = open_brace_span.to(close_brace_span); 444 ( 0.00%) if !sm.is_multiline(empty_block_span) { . // Only track if the block is in the form of `{}`, otherwise it is . // likely that it was written on purpose. . self.last_delim_empty_block_spans.insert(delim, empty_block_span); . } . } . . //only add braces 5,592 ( 0.00%) if let (DelimToken::Brace, DelimToken::Brace) = (open_brace, delim) { . self.matching_block_spans.push((open_brace_span, close_brace_span)); . } . 1,398 ( 0.00%) if self.open_braces.is_empty() { . // Clear up these spans to avoid suggesting them as we've found . // properly matched delimiters so far for an entire block. . self.matching_delim_spans.clear(); . } else { . self.matching_delim_spans.push(( . open_brace, . open_brace_span, . close_brace_span, -- line 165 ---------------------------------------- -- line 218 ---------------------------------------- . token::Eof => { . // Silently recover, the EOF token will be seen again . // and an error emitted then. Thus we don't pop from . // self.open_braces here. . } . _ => {} . } . 9,786 ( 0.00%) Ok(TokenTree::Delimited(delim_span, delim, tts).into()) . } . token::CloseDelim(delim) => { . // An unexpected closing delimiter (i.e., there is no . // matching opening delimiter). . let token_str = token_to_string(&self.token); . let msg = format!("unexpected closing delimiter: `{}`", token_str); . let mut err = . self.string_reader.sess.span_diagnostic.struct_span_err(self.token.span, &msg); -- line 234 ---------------------------------------- -- line 253 ---------------------------------------- . err.span_label(parent.1, "...matches this closing brace"); . } . } . . err.span_label(self.token.span, "unexpected closing delimiter"); . Err(err) . } . _ => { 48,580 ( 0.02%) let tt = TokenTree::Token(self.token.take()); . let mut spacing = self.bump(); 19,432 ( 0.01%) if !self.token.is_op() { . spacing = Alone; . } 58,296 ( 0.03%) Ok((tt, spacing)) . } . } 88,912 ( 0.04%) } . . fn bump(&mut self) -> Spacing { 105,642 ( 0.05%) let (spacing, token) = self.string_reader.next_token(); 55,606 ( 0.03%) self.token = token; . spacing . } . } . 1,398 ( 0.00%) #[derive(Default)] . struct TokenStreamBuilder { . buf: Vec, . } . . impl TokenStreamBuilder { 144,482 ( 0.07%) fn push(&mut self, (tree, joint): TreeAndSpacing) { 68,861 ( 0.03%) if let Some((TokenTree::Token(prev_token), Joint)) = self.buf.last() { 5,362 ( 0.00%) if let TokenTree::Token(token) = &tree { 11,211 ( 0.01%) if let Some(glued) = prev_token.glue(token) { . self.buf.pop(); 9,504 ( 0.00%) self.buf.push((TokenTree::Token(glued), joint)); . return; . } . } . } 51,610 ( 0.03%) self.buf.push((tree, joint)) 88,912 ( 0.04%) } . . fn into_token_stream(self) -> TokenStream { 14,016 ( 0.01%) TokenStream::new(self.buf) . } . } 38,342 ( 0.02%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs -------------------------------------------------------------------------------- Ir -- line 114 ---------------------------------------- . const EMPTY: u8 = 0b1111_1111; . . /// Control byte value for a deleted bucket. . const DELETED: u8 = 0b1000_0000; . . /// Checks whether a control byte represents a full bucket (top bit is clear). . #[inline] . fn is_full(ctrl: u8) -> bool { 29,933 ( 0.01%) ctrl & 0x80 == 0 . } . . /// Checks whether a control byte represents a special value (top bit is set). . #[inline] . fn is_special(ctrl: u8) -> bool { . ctrl & 0x80 != 0 . } . -- line 130 ---------------------------------------- -- line 146 ---------------------------------------- . /// Secondary hash function, saved in the low 7 bits of the control byte. . #[inline] . #[allow(clippy::cast_possible_truncation)] . fn h2(hash: u64) -> u8 { . // Grab the top 7 bits of the hash. While the hash is normally a full 64-bit . // value, some hash functions (such as FxHash) produce a usize result . // instead, which means that the top 32 bits are 0 on 32-bit platforms. . let hash_len = usize::min(mem::size_of::(), mem::size_of::()); 26,029 ( 0.01%) let top7 = hash >> (hash_len * 8 - 7); . (top7 & 0x7f) as u8 // truncation . } . . /// Probe sequence based on triangular numbers, which is guaranteed (since our . /// table size is a power of two) to visit every group of elements exactly once. . /// . /// A triangular probe has us jump by 1 more group every time. So first we . /// jump by 1 group (meaning we just continue our linear scan), then 2 groups -- line 162 ---------------------------------------- -- line 173 ---------------------------------------- . #[inline] . fn move_next(&mut self, bucket_mask: usize) { . // We should have found an empty bucket by now and ended the probe. . debug_assert!( . self.stride <= bucket_mask, . "Went past end of probe sequence" . ); . 3,262 ( 0.00%) self.stride += Group::WIDTH; 3,262 ( 0.00%) self.pos += self.stride; 1,631 ( 0.00%) self.pos &= bucket_mask; . } . } . . /// Returns the number of buckets needed to hold the given number of items, . /// taking the maximum load factor into account. . /// . /// Returns `None` if an overflow occurs. . // Workaround for emscripten bug emscripten-core/emscripten-fastcomp#258 . #[cfg_attr(target_os = "emscripten", inline(never))] . #[cfg_attr(not(target_os = "emscripten"), inline)] . fn capacity_to_buckets(cap: usize) -> Option { . debug_assert_ne!(cap, 0); . . // For small tables we require at least 1 empty bucket so that lookups are . // guaranteed to terminate if an element doesn't exist in the table. 950 ( 0.00%) if cap < 8 { . // We don't bother with a table size of 2 buckets since that can only . // hold a single element. Instead we skip directly to a 4 bucket table . // which can hold 3 elements. 1,370 ( 0.00%) return Some(if cap < 4 { 4 } else { 8 }); . } . . // Otherwise require 1/8 buckets to be empty (87.5% load) . // . // Be careful when modifying this, calculate_layout relies on the . // overflow check here. 1,206 ( 0.00%) let adjusted_cap = cap.checked_mul(8)? / 7; . . // Any overflows will have been caught by the checked_mul. Also, any . // rounding errors from the division above will be cleaned up by . // next_power_of_two (which can't overflow because of the previous divison). . Some(adjusted_cap.next_power_of_two()) . } . . /// Returns the maximum effective capacity for the given bucket mask, taking . /// the maximum load factor into account. . #[inline] . fn bucket_mask_to_capacity(bucket_mask: usize) -> usize { 3,628 ( 0.00%) if bucket_mask < 8 { . // For tables with 1/2/4/8 buckets, we always reserve one empty slot. . // Keep in mind that the bucket mask is one less than the bucket count. . bucket_mask . } else { . // For larger tables we reserve 12.5% of the slots as empty. 918 ( 0.00%) ((bucket_mask + 1) / 8) * 7 . } . } . . /// Helper which allows the max calculation for ctrl_align to be statically computed for each T . /// while keeping the rest of `calculate_layout_for` independent of `T` . #[derive(Copy, Clone)] . struct TableLayout { . size: usize, -- line 236 ---------------------------------------- -- line 249 ---------------------------------------- . . #[inline] . fn calculate_layout_for(self, buckets: usize) -> Option<(Layout, usize)> { . debug_assert!(buckets.is_power_of_two()); . . let TableLayout { size, ctrl_align } = self; . // Manual layout calculation since Layout methods are not yet stable. . let ctrl_offset = 2,093 ( 0.00%) size.checked_mul(buckets)?.checked_add(ctrl_align - 1)? & !(ctrl_align - 1); 2,568 ( 0.00%) let len = ctrl_offset.checked_add(buckets + Group::WIDTH)?; . . Some(( . unsafe { Layout::from_size_align_unchecked(len, ctrl_align) }, . ctrl_offset, . )) . } . } . -- line 266 ---------------------------------------- -- line 636 ---------------------------------------- . } . } . } . . /// Ensures that at least `additional` items can be inserted into the table . /// without reallocation. . #[cfg_attr(feature = "inline-more", inline)] . pub fn reserve(&mut self, additional: usize, hasher: impl Fn(&T) -> u64) { 7 ( 0.00%) if additional > self.table.growth_left { . // Avoid `Result::unwrap_or_else` because it bloats LLVM IR. 2,396 ( 0.00%) if self . .reserve_rehash(additional, hasher, Fallibility::Infallible) . .is_err() . { . unsafe { hint::unreachable_unchecked() } . } . } . } . -- line 654 ---------------------------------------- -- line 665 ---------------------------------------- . } else { . Ok(()) . } . } . . /// Out-of-line slow path for `reserve` and `try_reserve`. . #[cold] . #[inline(never)] 3,941 ( 0.00%) fn reserve_rehash( . &mut self, . additional: usize, . hasher: impl Fn(&T) -> u64, . fallibility: Fallibility, . ) -> Result<(), TryReserveError> { . // Avoid `Option::ok_or_else` because it bloats LLVM IR. 950 ( 0.00%) let new_items = match self.table.items.checked_add(additional) { . Some(new_items) => new_items, . None => return Err(fallibility.capacity_overflow()), . }; 950 ( 0.00%) let full_capacity = bucket_mask_to_capacity(self.table.bucket_mask); 1,900 ( 0.00%) if new_items <= full_capacity / 2 { . // Rehash in-place without re-allocating if we have plenty of spare . // capacity that is locked up due to DELETED entries. . self.rehash_in_place(hasher); . Ok(()) . } else { . // Otherwise, conservatively resize to at least the next size up . // to avoid churning deletes into frequent rehashes. . self.resize( 475 ( 0.00%) usize::max(new_items, full_capacity + 1), . hasher, . fallibility, . ) . } 4,275 ( 0.00%) } . . /// Rehashes the contents of the table in place (i.e. without changing the . /// allocation). . /// . /// If `hasher` panics then some the table's contents may be lost. . fn rehash_in_place(&mut self, hasher: impl Fn(&T) -> u64) { . unsafe { . // If the hash function panics then properly clean up any elements -- line 707 ---------------------------------------- -- line 780 ---------------------------------------- . fn resize( . &mut self, . capacity: usize, . hasher: impl Fn(&T) -> u64, . fallibility: Fallibility, . ) -> Result<(), TryReserveError> { . unsafe { . let mut new_table = 3,670 ( 0.00%) self.table . .prepare_resize(TableLayout::new::(), capacity, fallibility)?; . . // Copy all elements to the new table. . for item in self.iter() { . // This may panic. 16,241 ( 0.01%) let hash = hasher(item.as_ref()); . . // We can use a simpler version of insert() here since: . // - there are no DELETED entries. . // - we know there is enough space in the table. . // - all elements are unique. . let (index, _) = new_table.prepare_insert_slot(hash); 16,241 ( 0.01%) new_table.bucket(index).copy_from_nonoverlapping(&item); . } . . // We successfully copied all elements without panicking. Now replace . // self with the new table. The old table will have its memory freed but . // the items will not be dropped (since they have been moved into the . // new table). . mem::swap(&mut self.table, &mut new_table); . 475 ( 0.00%) Ok(()) . } . } . . /// Inserts a new element into the table, and returns its raw bucket. . /// . /// This does not check if the given element already exists in the table. . #[cfg_attr(feature = "inline-more", inline)] . pub fn insert(&mut self, hash: u64, value: T, hasher: impl Fn(&T) -> u64) -> Bucket { . unsafe { . let mut index = self.table.find_insert_slot(hash); . . // We can avoid growing the table once we have reached our load . // factor if we are replacing a tombstone. This works since the . // number of EMPTY slots does not change in this case. 40 ( 0.00%) let old_ctrl = *self.table.ctrl(index); 48,182 ( 0.02%) if unlikely(self.table.growth_left == 0 && special_is_empty(old_ctrl)) { . self.reserve(1, hasher); . index = self.table.find_insert_slot(hash); . } . . self.table.record_item_insert_at(index, old_ctrl, hash); . 12,051 ( 0.01%) let bucket = self.bucket(index); . bucket.write(value); . bucket . } . } . . /// Attempts to insert a new element without growing the table and return its raw bucket. . /// . /// Returns an `Err` containing the given element if inserting it would require growing the -- line 841 ---------------------------------------- -- line 911 ---------------------------------------- . true . } else { . false . } . } . . /// Searches for an element in the table. . #[inline] 18,030 ( 0.01%) pub fn find(&self, hash: u64, mut eq: impl FnMut(&T) -> bool) -> Option> { . unsafe { 98,249 ( 0.05%) for bucket in self.iter_hash(hash) { . let elm = bucket.as_ref(); 12,756 ( 0.01%) if likely(eq(elm)) { . return Some(bucket); . } . } . None . } 24,040 ( 0.01%) } . . /// Gets a reference to an element in the table. . #[inline] . pub fn get(&self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option<&T> { . // Avoid `Option::map` because it bloats LLVM IR. 472 ( 0.00%) match self.find(hash, eq) { . Some(bucket) => Some(unsafe { bucket.as_ref() }), . None => None, . } . } . . /// Gets a mutable reference to an element in the table. . #[inline] . pub fn get_mut(&mut self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option<&mut T> { -- line 943 ---------------------------------------- -- line 1007 ---------------------------------------- . } . . /// Returns the number of elements the map can hold without reallocating. . /// . /// This number is a lower bound; the table might be able to hold . /// more, but is guaranteed to be able to hold at least this many. . #[cfg_attr(feature = "inline-more", inline)] . pub fn capacity(&self) -> usize { 952 ( 0.00%) self.table.items + self.table.growth_left . } . . /// Returns the number of elements in the table. . #[cfg_attr(feature = "inline-more", inline)] . pub fn len(&self) -> usize { . self.table.items . } . . /// Returns the number of buckets in the table. . #[cfg_attr(feature = "inline-more", inline)] . pub fn buckets(&self) -> usize { 28 ( 0.00%) self.table.bucket_mask + 1 . } . . /// Returns an iterator over every element in the table. It is up to . /// the caller to ensure that the `RawTable` outlives the `RawIter`. . /// Because we cannot make the `next` method unsafe on the `RawIter` . /// struct, we have to make the `iter` method unsafe. . #[cfg_attr(feature = "inline-more", inline)] . pub unsafe fn iter(&self) -> RawIter { 475 ( 0.00%) let data = Bucket::from_base_index(self.data_end(), 0); . RawIter { . iter: RawIterRange::new(self.table.ctrl.as_ptr(), data, self.table.buckets()), . items: self.table.items, . } . } . . /// Returns an iterator over occupied buckets that could match a given hash. . /// -- line 1044 ---------------------------------------- -- line 1122 ---------------------------------------- . } . . unsafe impl Send for RawTable where T: Send {} . unsafe impl Sync for RawTable where T: Sync {} . . impl RawTableInner { . #[cfg_attr(feature = "inline-more", inline)] . const fn new_in(alloc: A) -> Self { 1,678 ( 0.00%) Self { . // Be careful to cast the entire slice to a raw pointer. 890 ( 0.00%) ctrl: unsafe { NonNull::new_unchecked(Group::static_empty() as *const _ as *mut u8) }, . bucket_mask: 0, . items: 0, . growth_left: 0, . alloc, . } . } . } . -- line 1140 ---------------------------------------- -- line 1149 ---------------------------------------- . debug_assert!(buckets.is_power_of_two()); . . // Avoid `Option::ok_or_else` because it bloats LLVM IR. . let (layout, ctrl_offset) = match table_layout.calculate_layout_for(buckets) { . Some(lco) => lco, . None => return Err(fallibility.capacity_overflow()), . }; . 950 ( 0.00%) let ptr: NonNull = match do_alloc(&alloc, layout) { . Ok(block) => block.cast(), . Err(_) => return Err(fallibility.alloc_err(layout)), . }; . . let ctrl = NonNull::new_unchecked(ptr.as_ptr().add(ctrl_offset)); . Ok(Self { . ctrl, 496 ( 0.00%) bucket_mask: buckets - 1, . items: 0, . growth_left: bucket_mask_to_capacity(buckets - 1), . alloc, . }) . } . . #[inline] 3,128 ( 0.00%) fn fallible_with_capacity( . alloc: A, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result { 2 ( 0.00%) if capacity == 0 { . Ok(Self::new_in(alloc)) . } else { . unsafe { . let buckets = . capacity_to_buckets(capacity).ok_or_else(|| fallibility.capacity_overflow())?; . . let result = Self::new_uninitialized(alloc, table_layout, buckets, fallibility)?; . result.ctrl(0).write_bytes(EMPTY, result.num_ctrl_bytes()); . 1,877 ( 0.00%) Ok(result) . } . } 2,504 ( 0.00%) } . . /// Searches for an empty or deleted bucket which is suitable for inserting . /// a new element and sets the hash for that slot. . /// . /// There must be at least 1 empty bucket in the table. . #[inline] . unsafe fn prepare_insert_slot(&self, hash: u64) -> (usize, u8) { . let index = self.find_insert_slot(hash); -- line 1200 ---------------------------------------- -- line 1208 ---------------------------------------- . /// . /// There must be at least 1 empty bucket in the table. . #[inline] . fn find_insert_slot(&self, hash: u64) -> usize { . let mut probe_seq = self.probe_seq(hash); . loop { . unsafe { . let group = Group::load(self.ctrl(probe_seq.pos)); 29,561 ( 0.01%) if let Some(bit) = group.match_empty_or_deleted().lowest_set_bit() { 86,298 ( 0.04%) let result = (probe_seq.pos + bit) & self.bucket_mask; . . // In tables smaller than the group width, trailing control . // bytes outside the range of the table are filled with . // EMPTY entries. These will unfortunately trigger a . // match, but once masked may point to a full bucket that . // is already occupied. We detect this situation here and . // perform a second scan starting at the begining of the . // table. This second scan is guaranteed to find an empty . // slot (due to the load factor) before hitting the trailing . // control bytes (containing EMPTY). 40,817 ( 0.02%) if unlikely(is_full(*self.ctrl(result))) { . debug_assert!(self.bucket_mask < Group::WIDTH); . debug_assert_ne!(probe_seq.pos, 0); . return Group::load_aligned(self.ctrl(0)) . .match_empty_or_deleted() . .lowest_set_bit_nonzero(); . } . . return result; -- line 1236 ---------------------------------------- -- line 1278 ---------------------------------------- . /// Returns an iterator-like object for a probe sequence on the table. . /// . /// This iterator never terminates, but is guaranteed to visit each bucket . /// group exactly once. The loop using `probe_seq` must terminate upon . /// reaching a group containing an empty bucket. . #[inline] . fn probe_seq(&self, hash: u64) -> ProbeSeq { . ProbeSeq { 142,560 ( 0.07%) pos: h1(hash) & self.bucket_mask, . stride: 0, . } . } . . /// Returns the index of a bucket for which a value must be inserted if there is enough rooom . /// in the table, otherwise returns error . #[cfg(feature = "raw")] . #[inline] -- line 1294 ---------------------------------------- -- line 1300 ---------------------------------------- . } else { . self.record_item_insert_at(index, old_ctrl, hash); . Ok(index) . } . } . . #[inline] . unsafe fn record_item_insert_at(&mut self, index: usize, old_ctrl: u8, hash: u64) { 60,255 ( 0.03%) self.growth_left -= special_is_empty(old_ctrl) as usize; . self.set_ctrl_h2(index, hash); 48,204 ( 0.02%) self.items += 1; . } . . #[inline] . fn is_in_same_group(&self, i: usize, new_i: usize, hash: u64) -> bool { . let probe_seq_pos = self.probe_seq(hash).pos; . let probe_index = . |pos: usize| (pos.wrapping_sub(probe_seq_pos) & self.bucket_mask) / Group::WIDTH; . probe_index(i) == probe_index(new_i) -- line 1318 ---------------------------------------- -- line 1349 ---------------------------------------- . // replicate the buckets at the end of the trailing group. For example . // with 2 buckets and a group size of 4, the control bytes will look . // like this: . // . // Real | Replicated . // --------------------------------------------- . // | [A] | [B] | [EMPTY] | [EMPTY] | [A] | [B] | . // --------------------------------------------- 84,876 ( 0.04%) let index2 = ((index.wrapping_sub(Group::WIDTH)) & self.bucket_mask) + Group::WIDTH; . 28,292 ( 0.01%) *self.ctrl(index) = ctrl; 28,292 ( 0.01%) *self.ctrl(index2) = ctrl; . } . . /// Returns a pointer to a control byte. . #[inline] . unsafe fn ctrl(&self, index: usize) -> *mut u8 { . debug_assert!(index < self.num_ctrl_bytes()); . self.ctrl.as_ptr().add(index) . } . . #[inline] . fn buckets(&self) -> usize { 950 ( 0.00%) self.bucket_mask + 1 . } . . #[inline] . fn num_ctrl_bytes(&self) -> usize { . self.bucket_mask + 1 + Group::WIDTH . } . . #[inline] . fn is_empty_singleton(&self) -> bool { 2,698 ( 0.00%) self.bucket_mask == 0 . } . . #[allow(clippy::mut_mut)] . #[inline] 231 ( 0.00%) unsafe fn prepare_resize( . &self, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result, TryReserveError> { . debug_assert!(self.items <= capacity); . . // Allocate and initialize the new table. 1,565 ( 0.00%) let mut new_table = RawTableInner::fallible_with_capacity( . self.alloc.clone(), . table_layout, . capacity, . fallibility, . )?; 950 ( 0.00%) new_table.growth_left -= self.items; . new_table.items = self.items; . . // The hash function may panic, in which case we simply free the new . // table without dropping any elements that may have been copied into . // it. . // . // This guard is also used to free the old table on success, see . // the comment at the bottom of this function. 168 ( 0.00%) Ok(guard(new_table, move |self_| { 475 ( 0.00%) if !self_.is_empty_singleton() { . self_.free_buckets(table_layout); . } . })) 168 ( 0.00%) } . . #[inline] . unsafe fn free_buckets(&mut self, table_layout: TableLayout) { . // Avoid `Option::unwrap_or_else` because it bloats LLVM IR. . let (layout, ctrl_offset) = match table_layout.calculate_layout_for(self.buckets()) { . Some(lco) => lco, . None => hint::unreachable_unchecked(), . }; . self.alloc.deallocate( 163 ( 0.00%) NonNull::new_unchecked(self.ctrl.as_ptr().sub(ctrl_offset)), . layout, . ); . } . . /// Marks all table buckets as empty without dropping their contents. . #[inline] . fn clear_no_drop(&mut self) { . if !self.is_empty_singleton() { -- line 1434 ---------------------------------------- -- line 1667 ---------------------------------------- . } . } . } . } . #[cfg(not(feature = "nightly"))] . impl Drop for RawTable { . #[cfg_attr(feature = "inline-more", inline)] . fn drop(&mut self) { 895 ( 0.00%) if !self.table.is_empty_singleton() { . unsafe { . self.drop_elements(); . self.free_buckets(); . } . } . } . } . -- line 1683 ---------------------------------------- -- line 1798 ---------------------------------------- . . impl Iterator for RawIterRange { . type Item = Bucket; . . #[cfg_attr(feature = "inline-more", inline)] . fn next(&mut self) -> Option> { . unsafe { . loop { 1,669 ( 0.00%) if let Some(index) = self.current_group.lowest_set_bit() { . self.current_group = self.current_group.remove_lowest_bit(); . return Some(self.data.next_n(index)); . } . 2,878 ( 0.00%) if self.next_ctrl >= self.end { . return None; . } . . // We might read past self.end up to the next group boundary, . // but this is fine because it only occurs on tables smaller . // than the group size where the trailing control bytes are all . // EMPTY. On larger tables self.end is guaranteed to be aligned . // to the group size (since tables are power-of-two sized). -- line 1819 ---------------------------------------- -- line 1990 ---------------------------------------- . } . . impl Iterator for RawIter { . type Item = Bucket; . . #[cfg_attr(feature = "inline-more", inline)] . fn next(&mut self) -> Option> { . if let Some(b) = self.iter.next() { 32,482 ( 0.02%) self.items -= 1; . Some(b) . } else { . // We don't check against items == 0 here to allow the . // compiler to optimize away the item count entirely if the . // iterator length is never queried. . debug_assert_eq!(self.items, 0); . None . } -- line 2006 ---------------------------------------- -- line 2178 ---------------------------------------- . } . } . impl<'a, A: Allocator + Clone> RawIterHashInner<'a, A> { . #[cfg_attr(feature = "inline-more", inline)] . fn new(table: &'a RawTableInner, hash: u64) -> Self { . unsafe { . let h2_hash = h2(hash); . let probe_seq = table.probe_seq(hash); 16,525 ( 0.01%) let group = Group::load(table.ctrl(probe_seq.pos)); . let bitmask = group.match_byte(h2_hash).into_iter(); . . RawIterHashInner { . table, . h2_hash, . probe_seq, . group, . bitmask, -- line 2194 ---------------------------------------- -- line 2195 ---------------------------------------- . } . } . } . } . . impl<'a, T, A: Allocator + Clone> Iterator for RawIterHash<'a, T, A> { . type Item = Bucket; . 556 ( 0.00%) fn next(&mut self) -> Option> { . unsafe { . match self.inner.next() { 278 ( 0.00%) Some(index) => Some(self.inner.table.bucket(index)), . None => None, . } . } 556 ( 0.00%) } . } . . impl<'a, A: Allocator + Clone> Iterator for RawIterHashInner<'a, A> { . type Item = usize; . . fn next(&mut self) -> Option { . unsafe { . loop { . if let Some(bit) = self.bitmask.next() { 15,232 ( 0.01%) let index = (self.probe_seq.pos + bit) & self.table.bucket_mask; . return Some(index); . } 13,232 ( 0.01%) if likely(self.group.match_empty().any_bit_set()) { . return None; . } . self.probe_seq.move_next(self.table.bucket_mask); . self.group = Group::load(self.table.ctrl(self.probe_seq.pos)); 2,508 ( 0.00%) self.bitmask = self.group.match_byte(self.h2_hash).into_iter(); . } . } . } . } . . #[cfg(test)] . mod test_map { . use super::*; -- line 2236 ---------------------------------------- 134,567 ( 0.07%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/lexer/mod.rs -------------------------------------------------------------------------------- Ir -- line 26 ---------------------------------------- . pub struct UnmatchedBrace { . pub expected_delim: token::DelimToken, . pub found_delim: Option, . pub found_span: Span, . pub unclosed_span: Option, . pub candidate_span: Option, . } . 56 ( 0.00%) crate fn parse_token_trees<'a>( . sess: &'a ParseSess, . src: &'a str, . start_pos: BytePos, . override_span: Option, . ) -> (PResult<'a, TokenStream>, Vec) { . StringReader { sess, start_pos, pos: start_pos, end_src_index: src.len(), src, override_span } . .into_token_trees() 36 ( 0.00%) } . . struct StringReader<'a> { . sess: &'a ParseSess, . /// Initial position, read-only. . start_pos: BytePos, . /// The absolute offset within the source_map of the current character. . pos: BytePos, . /// Stop reading src at this index. -- line 50 ---------------------------------------- -- line 51 ---------------------------------------- . end_src_index: usize, . /// Source text to tokenize. . src: &'a str, . override_span: Option, . } . . impl<'a> StringReader<'a> { . fn mk_sp(&self, lo: BytePos, hi: BytePos) -> Span { 17,130 ( 0.01%) self.override_span.unwrap_or_else(|| Span::with_root_ctxt(lo, hi)) . } . . /// Returns the next token, and info about preceding whitespace, if any. 87,612 ( 0.04%) fn next_token(&mut self) -> (Spacing, Token) { . let mut spacing = Spacing::Joint; . . // Skip `#!` at the start of the file 25,032 ( 0.01%) let start_src_index = self.src_index(self.pos); 37,548 ( 0.02%) let text: &str = &self.src[start_src_index..self.end_src_index]; . let is_beginning_of_file = self.pos == self.start_pos; 12,516 ( 0.01%) if is_beginning_of_file { 16 ( 0.00%) if let Some(shebang_len) = rustc_lexer::strip_shebang(text) { . self.pos = self.pos + BytePos::from_usize(shebang_len); . spacing = Spacing::Alone; . } . } . . // Skip trivial (whitespace & comments) tokens . loop { 23,284 ( 0.01%) let start_src_index = self.src_index(self.pos); 53,700 ( 0.03%) let text: &str = &self.src[start_src_index..self.end_src_index]; . 17,900 ( 0.01%) if text.is_empty() { . let span = self.mk_sp(self.pos, self.pos); 20 ( 0.00%) return (spacing, Token::new(token::Eof, span)); . } . 53,688 ( 0.03%) let token = rustc_lexer::first_token(text); . 35,792 ( 0.02%) let start = self.pos; 17,896 ( 0.01%) self.pos = self.pos + BytePos::from_usize(token.len); . . debug!("next_token: {:?}({:?})", token.kind, self.str_from(start)); . 143,568 ( 0.07%) match self.cook_lexer_token(token.kind, start) { 100,096 ( 0.05%) Some(kind) => { . let span = self.mk_sp(start, self.pos); 75,072 ( 0.04%) return (spacing, Token::new(kind, span)); . } . None => spacing = Spacing::Alone, . } . } 112,644 ( 0.06%) } . . /// Report a fatal lexical error with a given span. . fn fatal_span(&self, sp: Span, m: &str) -> FatalError { . self.sess.span_diagnostic.span_fatal(sp, m) . } . . /// Report a lexical error with a given span. . fn err_span(&self, sp: Span, m: &str) { -- line 110 ---------------------------------------- -- line 130 ---------------------------------------- . ) -> DiagnosticBuilder<'a> { . self.sess . .span_diagnostic . .struct_span_fatal(self.mk_sp(from_pos, to_pos), &format!("{}: {}", m, escaped_char(c))) . } . . /// Detect usages of Unicode codepoints changing the direction of the text on screen and loudly . /// complain about it. 700 ( 0.00%) fn lint_unicode_text_flow(&self, start: BytePos) { . // Opening delimiter of the length 2 is not included into the comment text. . let content_start = start + BytePos(2); . let content = self.str_from(content_start); . if contains_text_flow_control_chars(content) { . let span = self.mk_sp(start, self.pos); . self.sess.buffer_lint_with_diagnostic( . &TEXT_DIRECTION_CODEPOINT_IN_COMMENT, . span, . ast::CRATE_NODE_ID, . "unicode codepoint changing visible direction of text present in comment", . BuiltinLintDiagnostics::UnicodeTextFlow(span, content.to_string()), . ); . } 800 ( 0.00%) } . . /// Turns simple `rustc_lexer::TokenKind` enum into a rich . /// `rustc_ast::TokenKind`. This turns strings into interned . /// symbols and runs additional validation. . fn cook_lexer_token(&self, token: rustc_lexer::TokenKind, start: BytePos) -> Option { 89,480 ( 0.04%) Some(match token { 200 ( 0.00%) rustc_lexer::TokenKind::LineComment { doc_style } => { . // Skip non-doc comments 700 ( 0.00%) let doc_style = if let Some(doc_style) = doc_style { . doc_style . } else { . self.lint_unicode_text_flow(start); . return None; . }; . . // Opening delimiter of the length 3 is not included into the symbol. . let content_start = start + BytePos(3); . let content = self.str_from(content_start); 500 ( 0.00%) self.cook_doc_comment(content_start, content, CommentKind::Line, doc_style) . } . rustc_lexer::TokenKind::BlockComment { doc_style, terminated } => { . if !terminated { . let msg = match doc_style { . Some(_) => "unterminated block doc-comment", . None => "unterminated block comment", . }; . let last_bpos = self.pos; -- line 179 ---------------------------------------- -- line 198 ---------------------------------------- . let content_end = self.pos - BytePos(if terminated { 2 } else { 0 }); . let content = self.str_from_to(content_start, content_end); . self.cook_doc_comment(content_start, content, CommentKind::Block, doc_style) . } . rustc_lexer::TokenKind::Whitespace => return None, . rustc_lexer::TokenKind::Ident . | rustc_lexer::TokenKind::RawIdent . | rustc_lexer::TokenKind::UnknownPrefix => { 18,440 ( 0.01%) let is_raw_ident = token == rustc_lexer::TokenKind::RawIdent; 23,050 ( 0.01%) let is_unknown_prefix = token == rustc_lexer::TokenKind::UnknownPrefix; . let mut ident_start = start; 9,220 ( 0.00%) if is_raw_ident { . ident_start = ident_start + BytePos(2); . } 13,830 ( 0.01%) if is_unknown_prefix { . self.report_unknown_prefix(start); . } 23,050 ( 0.01%) let sym = nfc_normalize(self.str_from(ident_start)); . let span = self.mk_sp(start, self.pos); 18,440 ( 0.01%) self.sess.symbol_gallery.insert(sym, span); 9,220 ( 0.00%) if is_raw_ident { . if !sym.can_be_raw() { . self.err_span(span, &format!("`{}` cannot be a raw identifier", sym)); . } . self.sess.raw_identifier_spans.borrow_mut().push(span); . } 32,270 ( 0.02%) token::Ident(sym, is_raw_ident) . } . rustc_lexer::TokenKind::InvalidIdent . // Do not recover an identifier with emoji if the codepoint is a confusable . // with a recoverable substitution token, like `➖`. . if UNICODE_ARRAY . .iter() . .find(|&&(c, _, _)| { . let sym = self.str_from(start); -- line 232 ---------------------------------------- -- line 234 ---------------------------------------- . }) . .is_none() => . { . let sym = nfc_normalize(self.str_from(start)); . let span = self.mk_sp(start, self.pos); . self.sess.bad_unicode_identifiers.borrow_mut().entry(sym).or_default().push(span); . token::Ident(sym, false) . } 4,880 ( 0.00%) rustc_lexer::TokenKind::Literal { kind, suffix_start } => { . let suffix_start = start + BytePos(suffix_start as u32); . let (kind, symbol) = self.cook_lexer_literal(start, suffix_start, kind); 915 ( 0.00%) let suffix = if suffix_start < self.pos { . let string = self.str_from(suffix_start); . if string == "_" { . self.sess . .span_diagnostic . .struct_span_warn( . self.mk_sp(suffix_start, self.pos), . "underscore literal suffix is not allowed", . ) -- line 253 ---------------------------------------- -- line 259 ---------------------------------------- . .note( . "see issue #42326 \ . \ . for more information", . ) . .emit(); . None . } else { 155 ( 0.00%) Some(Symbol::intern(string)) . } . } else { . None . }; 2,440 ( 0.00%) token::Literal(token::Lit { kind, symbol, suffix }) . } 106 ( 0.00%) rustc_lexer::TokenKind::Lifetime { starts_with_number } => { . // Include the leading `'` in the real identifier, for macro . // expansion purposes. See #12512 for the gory details of why . // this is necessary. . let lifetime_name = self.str_from(start); 53 ( 0.00%) if starts_with_number { . self.err_span_(start, self.pos, "lifetimes cannot start with a number"); . } 159 ( 0.00%) let ident = Symbol::intern(lifetime_name); 212 ( 0.00%) token::Lifetime(ident) . } . rustc_lexer::TokenKind::Semi => token::Semi, . rustc_lexer::TokenKind::Comma => token::Comma, . rustc_lexer::TokenKind::Dot => token::Dot, . rustc_lexer::TokenKind::OpenParen => token::OpenDelim(token::Paren), . rustc_lexer::TokenKind::CloseParen => token::CloseDelim(token::Paren), . rustc_lexer::TokenKind::OpenBrace => token::OpenDelim(token::Brace), . rustc_lexer::TokenKind::CloseBrace => token::CloseDelim(token::Brace), -- line 291 ---------------------------------------- -- line 324 ---------------------------------------- . err.help("source files must contain UTF-8 encoded text, unexpected null bytes might occur when a different encoding is used"); . } . err.emit(); . token? . } . }) . } . 1,200 ( 0.00%) fn cook_doc_comment( . &self, . content_start: BytePos, . content: &str, . comment_kind: CommentKind, . doc_style: DocStyle, . ) -> TokenKind { 100 ( 0.00%) if content.contains('\r') { . for (idx, _) in content.char_indices().filter(|&(_, c)| c == '\r') { . self.err_span_( . content_start + BytePos(idx as u32), . content_start + BytePos(idx as u32 + 1), . match comment_kind { . CommentKind::Line => "bare CR not allowed in doc-comment", . CommentKind::Block => "bare CR not allowed in block doc-comment", . }, -- line 347 ---------------------------------------- -- line 349 ---------------------------------------- . } . } . . let attr_style = match doc_style { . DocStyle::Outer => AttrStyle::Outer, . DocStyle::Inner => AttrStyle::Inner, . }; . 300 ( 0.00%) token::DocComment(comment_kind, attr_style, Symbol::intern(content)) 1,500 ( 0.00%) } . . fn cook_lexer_literal( . &self, . start: BytePos, . suffix_start: BytePos, . kind: rustc_lexer::LiteralKind, . ) -> (token::LitKind, Symbol) { . // prefix means `"` or `br"` or `r###"`, ... -- line 366 ---------------------------------------- -- line 370 ---------------------------------------- . self.sess.span_diagnostic.span_fatal_with_code( . self.mk_sp(start, suffix_start), . "unterminated character literal", . error_code!(E0762), . ) . } . (token::Char, Mode::Char, 1, 1) // ' ' . } 6 ( 0.00%) rustc_lexer::LiteralKind::Byte { terminated } => { 6 ( 0.00%) if !terminated { . self.sess.span_diagnostic.span_fatal_with_code( . self.mk_sp(start + BytePos(1), suffix_start), . "unterminated byte constant", . error_code!(E0763), . ) . } . (token::Byte, Mode::Byte, 2, 1) // b' ' . } 40 ( 0.00%) rustc_lexer::LiteralKind::Str { terminated } => { 40 ( 0.00%) if !terminated { . self.sess.span_diagnostic.span_fatal_with_code( . self.mk_sp(start, suffix_start), . "unterminated double quote string", . error_code!(E0765), . ) . } . (token::Str, Mode::Str, 1, 1) // " " . } -- line 397 ---------------------------------------- -- line 410 ---------------------------------------- . let n = u32::from(n_hashes); . (token::StrRaw(n_hashes), Mode::RawStr, 2 + n, 1 + n) // r##" "## . } . rustc_lexer::LiteralKind::RawByteStr { n_hashes, err } => { . self.report_raw_str_error(start, err); . let n = u32::from(n_hashes); . (token::ByteStrRaw(n_hashes), Mode::RawByteStr, 3 + n, 1 + n) // br##" "## . } 514 ( 0.00%) rustc_lexer::LiteralKind::Int { base, empty_int } => { 257 ( 0.00%) return if empty_int { . self.sess . .span_diagnostic . .struct_span_err_with_code( . self.mk_sp(start, suffix_start), . "no valid digits found for number", . error_code!(E0768), . ) . .emit(); . (token::Integer, sym::integer(0)) . } else { . self.validate_int_literal(base, start, suffix_start); 771 ( 0.00%) (token::Integer, self.symbol_from_to(start, suffix_start)) . }; . } 2 ( 0.00%) rustc_lexer::LiteralKind::Float { base, empty_exponent } => { 2 ( 0.00%) if empty_exponent { . self.err_span_(start, self.pos, "expected at least one digit in exponent"); . } . 14 ( 0.00%) match base { . Base::Hexadecimal => self.err_span_( . start, . suffix_start, . "hexadecimal float literal is not supported", . ), . Base::Octal => { . self.err_span_(start, suffix_start, "octal float literal is not supported") . } . Base::Binary => { . self.err_span_(start, suffix_start, "binary float literal is not supported") . } . _ => (), . } . 6 ( 0.00%) let id = self.symbol_from_to(start, suffix_start); . return (token::Float, id); . } . }; . let content_start = start + BytePos(prefix_len); . let content_end = suffix_start - BytePos(postfix_len); 138 ( 0.00%) let id = self.symbol_from_to(content_start, content_end); . self.validate_literal_escape(mode, content_start, content_end, prefix_len, postfix_len); . (lit_kind, id) . } . . #[inline] . fn src_index(&self, pos: BytePos) -> usize { . (pos - self.start_pos).to_usize() . } . . /// Slice of the source text from `start` up to but excluding `self.pos`, . /// meaning the slice does not include the character `self.ch`. . fn str_from(&self, start: BytePos) -> &str { 30,139 ( 0.01%) self.str_from_to(start, self.pos) . } . . /// As symbol_from, with an explicit endpoint. . fn symbol_from_to(&self, start: BytePos, end: BytePos) -> Symbol { . debug!("taking an ident from {:?} to {:?}", start, end); 2,369 ( 0.00%) Symbol::intern(self.str_from_to(start, end)) . } . . /// Slice of the source text spanning from `start` up to but excluding `end`. 5,245 ( 0.00%) fn str_from_to(&self, start: BytePos, end: BytePos) -> &str { . &self.src[self.src_index(start)..self.src_index(end)] 20,980 ( 0.01%) } . . fn report_raw_str_error(&self, start: BytePos, opt_err: Option) { . match opt_err { . Some(RawStrError::InvalidStarter { bad_char }) => { . self.report_non_started_raw_string(start, bad_char) . } . Some(RawStrError::NoTerminator { expected, found, possible_terminator_offset }) => self . .report_unterminated_raw_string(start, expected, possible_terminator_offset, found), -- line 493 ---------------------------------------- -- line 609 ---------------------------------------- . fn validate_literal_escape( . &self, . mode: Mode, . content_start: BytePos, . content_end: BytePos, . prefix_len: u32, . postfix_len: u32, . ) { 276 ( 0.00%) let lit_content = self.str_from_to(content_start, content_end); 6,564 ( 0.00%) unescape::unescape_literal(lit_content, mode, &mut |range, result| { . // Here we only check for errors. The actual unescaping is done later. 1,388 ( 0.00%) if let Err(err) = result { . let span_with_quotes = self . .mk_sp(content_start - BytePos(prefix_len), content_end + BytePos(postfix_len)); . let (start, end) = (range.start as u32, range.end as u32); . let lo = content_start + BytePos(start); . let hi = lo + BytePos(end - start); . let span = self.mk_sp(lo, hi); . emit_unescape_error( . &self.sess.span_diagnostic, -- line 628 ---------------------------------------- -- line 629 ---------------------------------------- . lit_content, . span_with_quotes, . span, . mode, . range, . err, . ); . } 6,246 ( 0.00%) }); . } . . fn validate_int_literal(&self, base: Base, content_start: BytePos, content_end: BytePos) { 1,028 ( 0.00%) let base = match base { . Base::Binary => 2, . Base::Octal => 8, . _ => return, . }; . let s = self.str_from_to(content_start + BytePos(2), content_end); . for (idx, c) in s.char_indices() { . let idx = idx as u32; . if c != '_' && c.to_digit(base).is_none() { -- line 649 ---------------------------------------- -- line 650 ---------------------------------------- . let lo = content_start + BytePos(2 + idx); . let hi = content_start + BytePos(2 + idx + c.len_utf8() as u32); . self.err_span_(lo, hi, &format!("invalid digit for a base {} literal", base)); . } . } . } . } . 41,490 ( 0.02%) pub fn nfc_normalize(string: &str) -> Symbol { . use unicode_normalization::{is_nfc_quick, IsNormalized, UnicodeNormalization}; 9,220 ( 0.00%) match is_nfc_quick(string.chars()) { 46,100 ( 0.02%) IsNormalized::Yes => Symbol::intern(string), . _ => { . let normalized_str: String = string.chars().nfc().collect(); . Symbol::intern(&normalized_str) . } . } . } 55,219 ( 0.03%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs -------------------------------------------------------------------------------- Ir -- line 176 ---------------------------------------- . } . fn sess(self) -> Option<&'tcx Session> { . None . } . fn tcx(self) -> Option> { . None . } . 4,368 ( 0.00%) fn decoder(self, pos: usize) -> DecodeContext<'a, 'tcx> { 1,456 ( 0.00%) let tcx = self.tcx(); 278,498 ( 0.14%) DecodeContext { 27,883 ( 0.01%) opaque: opaque::Decoder::new(self.blob(), pos), 1,456 ( 0.00%) cdata: self.cdata(), . blob: self.blob(), 14,620 ( 0.01%) sess: self.sess().or(tcx.map(|tcx| tcx.sess)), . tcx, . last_source_file_index: 0, . lazy_state: LazyState::NoNode, . alloc_decoding_session: self . .cdata() 24,979 ( 0.01%) .map(|cdata| cdata.cdata.alloc_decoding_state.new_decoding_session()), . } 4,368 ( 0.00%) } . } . . impl<'a, 'tcx> Metadata<'a, 'tcx> for &'a MetadataBlob { . #[inline] . fn blob(self) -> &'a MetadataBlob { . self . } . } -- line 206 ---------------------------------------- -- line 255 ---------------------------------------- . } . #[inline] . fn tcx(self) -> Option> { . Some(self.1) . } . } . . impl<'a, 'tcx, T: Decodable>> Lazy { 65,085 ( 0.03%) fn decode>(self, metadata: M) -> T { 27,777 ( 0.01%) let mut dcx = metadata.decoder(self.position.get()); 77,548 ( 0.04%) dcx.lazy_state = LazyState::NodeStart(self.position); 18,041 ( 0.01%) T::decode(&mut dcx) 82,869 ( 0.04%) } . } . . impl<'a: 'x, 'tcx: 'x, 'x, T: Decodable>> Lazy<[T]> { . fn decode>( . self, . metadata: M, . ) -> impl ExactSizeIterator + Captures<'a> + Captures<'tcx> + 'x { 28 ( 0.00%) let mut dcx = metadata.decoder(self.position.get()); 8 ( 0.00%) dcx.lazy_state = LazyState::NodeStart(self.position); 6,440 ( 0.00%) (0..self.meta).map(move |_| T::decode(&mut dcx)) . } . } . . impl<'a, 'tcx> DecodeContext<'a, 'tcx> { . #[inline] . fn tcx(&self) -> TyCtxt<'tcx> { . debug_assert!(self.tcx.is_some(), "missing TyCtxt in DecodeContext"); . self.tcx.unwrap() -- line 285 ---------------------------------------- -- line 292 ---------------------------------------- . . #[inline] . pub fn cdata(&self) -> CrateMetadataRef<'a> { . debug_assert!(self.cdata.is_some(), "missing CrateMetadata in DecodeContext"); . self.cdata.unwrap() . } . . fn map_encoded_cnum_to_current(&self, cnum: CrateNum) -> CrateNum { 88,042 ( 0.04%) if cnum == LOCAL_CRATE { self.cdata().cnum } else { self.cdata().cnum_map[cnum] } . } . 37,113 ( 0.02%) fn read_lazy_with_meta(&mut self, meta: T::Meta) -> Lazy { . let distance = self.read_usize(); 36,473 ( 0.02%) let position = match self.lazy_state { . LazyState::NoNode => bug!("read_lazy_with_meta: outside of a metadata node"), 6,636 ( 0.00%) LazyState::NodeStart(start) => { . let start = start.get(); 13,272 ( 0.01%) assert!(distance <= start); . start - distance . } 9,939 ( 0.00%) LazyState::Previous(last_pos) => last_pos.get() + distance, . }; 19,898 ( 0.01%) self.lazy_state = LazyState::Previous(NonZeroUsize::new(position).unwrap()); . Lazy::from_position_and_meta(NonZeroUsize::new(position).unwrap(), meta) 37,113 ( 0.02%) } . . #[inline] . pub fn read_raw_bytes(&mut self, len: usize) -> &'a [u8] { . self.opaque.read_raw_bytes(len) . } . } . . impl<'a, 'tcx> TyDecoder<'tcx> for DecodeContext<'a, 'tcx> { -- line 324 ---------------------------------------- -- line 326 ---------------------------------------- . . #[inline] . fn tcx(&self) -> TyCtxt<'tcx> { . self.tcx.expect("missing TyCtxt in DecodeContext") . } . . #[inline] . fn peek_byte(&self) -> u8 { 67,475 ( 0.03%) self.opaque.data[self.opaque.position()] . } . . #[inline] . fn position(&self) -> usize { . self.opaque.position() . } . 70,098 ( 0.03%) fn cached_ty_for_shorthand(&mut self, shorthand: usize, or_insert_with: F) -> Ty<'tcx> . where . F: FnOnce(&mut Self) -> Ty<'tcx>, . { 10,014 ( 0.00%) let tcx = self.tcx(); . 10,014 ( 0.00%) let key = ty::CReaderCacheKey { cnum: Some(self.cdata().cnum), pos: shorthand }; . 30,560 ( 0.01%) if let Some(&ty) = tcx.ty_rcache.borrow().get(&key) { . return ty; . } . 2,374 ( 0.00%) let ty = or_insert_with(self); . tcx.ty_rcache.borrow_mut().insert(key, ty); . ty 90,126 ( 0.04%) } . . fn with_position(&mut self, pos: usize, f: F) -> R . where . F: FnOnce(&mut Self) -> R, . { . let new_opaque = opaque::Decoder::new(self.opaque.data, pos); . let old_opaque = mem::replace(&mut self.opaque, new_opaque); . let old_state = mem::replace(&mut self.lazy_state, LazyState::NoNode); . let r = f(self); 12,030 ( 0.01%) self.opaque = old_opaque; 2,406 ( 0.00%) self.lazy_state = old_state; . r . } . . fn decode_alloc_id(&mut self) -> rustc_middle::mir::interpret::AllocId { . if let Some(alloc_decoding_session) = self.alloc_decoding_session { . alloc_decoding_session.decode_alloc_id(self) . } else { . bug!("Attempting to decode interpret::AllocId without CrateMetadata") . } . } . } . . impl<'a, 'tcx> Decodable> for CrateNum { . fn decode(d: &mut DecodeContext<'a, 'tcx>) -> CrateNum { 48,219 ( 0.02%) let cnum = CrateNum::from_u32(d.read_u32()); . d.map_encoded_cnum_to_current(cnum) . } . } . . impl<'a, 'tcx> Decodable> for DefIndex { 76 ( 0.00%) fn decode(d: &mut DecodeContext<'a, 'tcx>) -> DefIndex { 83,342 ( 0.04%) DefIndex::from_u32(d.read_u32()) 152 ( 0.00%) } . } . . impl<'a, 'tcx> Decodable> for ExpnIndex { . fn decode(d: &mut DecodeContext<'a, 'tcx>) -> ExpnIndex { . ExpnIndex::from_u32(d.read_u32()) . } . } . . impl<'a, 'tcx> Decodable> for SyntaxContext { 19,928 ( 0.01%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> SyntaxContext { 4,982 ( 0.00%) let cdata = decoder.cdata(); 4,982 ( 0.00%) let sess = decoder.sess.unwrap(); 9,964 ( 0.00%) let cname = cdata.root.name; . rustc_span::hygiene::decode_syntax_context(decoder, &cdata.hygiene_context, |_, id| { . debug!("SpecializedDecoder: decoding {}", id); 40 ( 0.00%) cdata . .root . .syntax_contexts . .get(cdata, id) . .unwrap_or_else(|| panic!("Missing SyntaxContext {:?} for crate {:?}", id, cname)) . .decode((cdata, sess)) . }) 24,910 ( 0.01%) } . } . . impl<'a, 'tcx> Decodable> for ExpnId { 2,296 ( 0.00%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> ExpnId { 328 ( 0.00%) let local_cdata = decoder.cdata(); 328 ( 0.00%) let sess = decoder.sess.unwrap(); . . let cnum = CrateNum::decode(decoder); . let index = u32::decode(decoder); . . let expn_id = rustc_span::hygiene::decode_expn_id(cnum, index, |expn_id| { . let ExpnId { krate: cnum, local_id: index } = expn_id; . // Lookup local `ExpnData`s in our own crate data. Foreign `ExpnData`s . // are stored in the owning crate, to avoid duplication. . debug_assert_ne!(cnum, LOCAL_CRATE); 21 ( 0.00%) let crate_data = if cnum == local_cdata.cnum { . local_cdata . } else { . local_cdata.cstore.get_crate_data(cnum) . }; 105 ( 0.00%) let expn_data = crate_data . .root . .expn_data . .get(crate_data, index) . .unwrap() . .decode((crate_data, sess)); 105 ( 0.00%) let expn_hash = crate_data . .root . .expn_hashes . .get(crate_data, index) . .unwrap() . .decode((crate_data, sess)); 210 ( 0.00%) (expn_data, expn_hash) . }); . expn_id 2,624 ( 0.00%) } . } . . impl<'a, 'tcx> Decodable> for Span { 39,616 ( 0.02%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Span { 4,952 ( 0.00%) let ctxt = SyntaxContext::decode(decoder); . let tag = u8::decode(decoder); . 9,904 ( 0.00%) if tag == TAG_PARTIAL_SPAN { . return DUMMY_SP.with_ctxt(ctxt); . } . . debug_assert!(tag == TAG_VALID_SPAN_LOCAL || tag == TAG_VALID_SPAN_FOREIGN); . . let lo = BytePos::decode(decoder); . let len = BytePos::decode(decoder); . let hi = lo + len; . 14,844 ( 0.01%) let Some(sess) = decoder.sess else { . bug!("Cannot decode Span without Session.") . }; . . // There are two possibilities here: . // 1. This is a 'local span', which is located inside a `SourceFile` . // that came from this crate. In this case, we use the source map data . // encoded in this crate. This branch should be taken nearly all of the time. . // 2. This is a 'foreign span', which is located inside a `SourceFile` -- line 476 ---------------------------------------- -- line 492 ---------------------------------------- . // a transitive dependency. . // . // When we encode a foreign span, we adjust its 'lo' and 'high' values . // to be based on the *foreign* crate (e.g. crate C), not the crate . // we are writing metadata for (e.g. crate B). This allows us to . // treat the 'local' and 'foreign' cases almost identically during deserialization: . // we can call `imported_source_files` for the proper crate, and binary search . // through the returned slice using our span. 11,712 ( 0.01%) let imported_source_files = if tag == TAG_VALID_SPAN_LOCAL { . decoder.cdata().imported_source_files(sess) . } else { . // When we encode a proc-macro crate, all `Span`s should be encoded . // with `TAG_VALID_SPAN_LOCAL` 35 ( 0.00%) if decoder.cdata().root.is_proc_macro_crate() { . // Decode `CrateNum` as u32 - using `CrateNum::decode` will ICE . // since we don't have `cnum_map` populated. . let cnum = u32::decode(decoder); . panic!( . "Decoding of crate {:?} tried to access proc-macro dep {:?}", . decoder.cdata().root.name, . cnum . ); -- line 513 ---------------------------------------- -- line 518 ---------------------------------------- . "SpecializedDecoder::specialized_decode: loading source files from cnum {:?}", . cnum . ); . . // Decoding 'foreign' spans should be rare enough that it's . // not worth it to maintain a per-CrateNum cache for `last_source_file_index`. . // We just set it to 0, to ensure that we don't try to access something out . // of bounds for our initial 'guess' 70 ( 0.00%) decoder.last_source_file_index = 0; . 35 ( 0.00%) let foreign_data = decoder.cdata().cstore.get_crate_data(cnum); . foreign_data.imported_source_files(sess) . }; . . let source_file = { . // Optimize for the case that most spans within a translated item . // originate from the same source_file. 14,844 ( 0.01%) let last_source_file = &imported_source_files[decoder.last_source_file_index]; . 19,729 ( 0.01%) if lo >= last_source_file.original_start_pos && lo <= last_source_file.original_end_pos . { . last_source_file . } else { . let index = imported_source_files . .binary_search_by_key(&lo, |source_file| source_file.original_start_pos) 3,632 ( 0.00%) .unwrap_or_else(|index| index - 1); . . // Don't try to cache the index for foreign spans, . // as this would require a map from CrateNums to indices 1,816 ( 0.00%) if tag == TAG_VALID_SPAN_LOCAL { 1,782 ( 0.00%) decoder.last_source_file_index = index; . } 3,632 ( 0.00%) &imported_source_files[index] . } . }; . . // Make sure our binary search above is correct. . debug_assert!( . lo >= source_file.original_start_pos && lo <= source_file.original_end_pos, . "Bad binary search: lo={:?} source_file.original_start_pos={:?} source_file.original_end_pos={:?}", . lo, -- line 558 ---------------------------------------- -- line 565 ---------------------------------------- . hi >= source_file.original_start_pos && hi <= source_file.original_end_pos, . "Bad binary search: hi={:?} source_file.original_start_pos={:?} source_file.original_end_pos={:?}", . hi, . source_file.original_start_pos, . source_file.original_end_pos . ); . . let lo = 19,792 ( 0.01%) (lo + source_file.translated_source_file.start_pos) - source_file.original_start_pos; . let hi = . (hi + source_file.translated_source_file.start_pos) - source_file.original_start_pos; . . // Do not try to decode parent for foreign spans. . Span::new(lo, hi, ctxt, None) 44,568 ( 0.02%) } . } . . impl<'a, 'tcx> Decodable> for &'tcx [thir::abstract_const::Node<'tcx>] { . fn decode(d: &mut DecodeContext<'a, 'tcx>) -> Self { . ty::codec::RefDecodable::decode(d) . } . } . -- line 587 ---------------------------------------- -- line 590 ---------------------------------------- . ty::codec::RefDecodable::decode(d) . } . } . . impl<'a, 'tcx, T: Decodable>> Decodable> . for Lazy . { . fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self { 12,770 ( 0.01%) decoder.read_lazy_with_meta(()) . } . } . . impl<'a, 'tcx, T: Decodable>> Decodable> . for Lazy<[T]> . { . fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self { . let len = decoder.read_usize(); 10,238 ( 0.01%) if len == 0 { Lazy::empty() } else { decoder.read_lazy_with_meta(len) } . } . } . . impl<'a, 'tcx, I: Idx, T: Decodable>> Decodable> . for Lazy> . where . Option: FixedSizeEncoding, . { . fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self { . let len = decoder.read_usize(); 11,830 ( 0.01%) decoder.read_lazy_with_meta(len) . } . } . . implement_ty_decoder!(DecodeContext<'a, 'tcx>); . . impl<'tcx> MetadataBlob { . crate fn new(metadata_ref: MetadataRef) -> MetadataBlob { . MetadataBlob(Lrc::new(metadata_ref)) -- line 626 ---------------------------------------- -- line 630 ---------------------------------------- . self.blob().starts_with(METADATA_HEADER) . } . . crate fn get_rustc_version(&self) -> String { . Lazy::::from_position(NonZeroUsize::new(METADATA_HEADER.len() + 4).unwrap()) . .decode(self) . } . 210 ( 0.00%) crate fn get_root(&self) -> CrateRoot<'tcx> { 70 ( 0.00%) let slice = &self.blob()[..]; . let offset = METADATA_HEADER.len(); 350 ( 0.00%) let pos = (((slice[offset + 0] as u32) << 24) 140 ( 0.00%) | ((slice[offset + 1] as u32) << 16) 280 ( 0.00%) | ((slice[offset + 2] as u32) << 8) 210 ( 0.00%) | ((slice[offset + 3] as u32) << 0)) as usize; . Lazy::>::from_position(NonZeroUsize::new(pos).unwrap()).decode(self) 350 ( 0.00%) } . . crate fn list_crate_metadata(&self, out: &mut dyn io::Write) -> io::Result<()> { . let root = self.get_root(); . writeln!(out, "Crate info:")?; . writeln!(out, "name {}{}", root.name, root.extra_filename)?; . writeln!(out, "hash {} stable_crate_id {:?}", root.hash, root.stable_crate_id)?; . writeln!(out, "proc_macro {:?}", root.proc_macro_data.is_some())?; . writeln!(out, "=External Dependencies=")?; -- line 654 ---------------------------------------- -- line 666 ---------------------------------------- . } . write!(out, "\n")?; . Ok(()) . } . } . . impl CrateRoot<'_> { . crate fn is_proc_macro_crate(&self) -> bool { 46 ( 0.00%) self.proc_macro_data.is_some() . } . . crate fn name(&self) -> Symbol { 10 ( 0.00%) self.name . } . . crate fn hash(&self) -> Svh { 23 ( 0.00%) self.hash . } . . crate fn stable_crate_id(&self) -> StableCrateId { 46 ( 0.00%) self.stable_crate_id . } . . crate fn triple(&self) -> &TargetTriple { . &self.triple . } . . crate fn decode_crate_deps<'a>( . &self, . metadata: &'a MetadataBlob, . ) -> impl ExactSizeIterator + Captures<'a> { 46 ( 0.00%) self.crate_deps.decode(metadata) . } . } . . impl<'a, 'tcx> CrateMetadataRef<'a> { . fn raw_proc_macro(self, id: DefIndex) -> &'a ProcMacro { . // DefIndex's in root.proc_macro_data have a one-to-one correspondence . // with items in 'raw_proc_macros'. . let pos = self -- line 705 ---------------------------------------- -- line 709 ---------------------------------------- . .unwrap() . .macros . .decode(self) . .position(|i| i == id) . .unwrap(); . &self.raw_proc_macros.unwrap()[pos] . } . 14,795 ( 0.01%) fn opt_item_ident(self, item_index: DefIndex, sess: &Session) -> Option { 10,920 ( 0.01%) let name = self.def_key(item_index).disambiguated_data.data.get_opt_name()?; 5,789 ( 0.00%) let span = match self.root.tables.ident_span.get(self, item_index) { . Some(lazy_span) => lazy_span.decode((self, sess)), . None => { . // FIXME: this weird case of a name with no span is specific to `extern crate` . // items, which are supposed to be treated like `use` items and only be encoded . // to metadata as `Export`s, return `None` because that's what all the callers . // expect in this case. 81 ( 0.00%) assert_eq!(self.def_kind(item_index), DefKind::ExternCrate); . return None; . } . }; . Some(Ident::new(name, span)) 18,894 ( 0.01%) } . 71 ( 0.00%) fn item_ident(self, item_index: DefIndex, sess: &Session) -> Ident { 577 ( 0.00%) self.opt_item_ident(item_index, sess).expect("no encoded ident for item") 142 ( 0.00%) } . . fn maybe_kind(self, item_id: DefIndex) -> Option { 13,014 ( 0.01%) self.root.tables.kind.get(self, item_id).map(|k| k.decode(self)) . } . 52,056 ( 0.03%) fn kind(self, item_id: DefIndex) -> EntryKind { . self.maybe_kind(item_id).unwrap_or_else(|| { . bug!( . "CrateMetadata::kind({:?}): id not found, in crate {:?} with number {}", . item_id, . self.root.name, . self.cnum, . ) . }) 39,042 ( 0.02%) } . 8,540 ( 0.00%) fn def_kind(self, item_id: DefIndex) -> DefKind { 5,325 ( 0.00%) self.root.tables.def_kind.get(self, item_id).map(|k| k.decode(self)).unwrap_or_else(|| { . bug!( . "CrateMetadata::def_kind({:?}): id not found, in crate {:?} with number {}", . item_id, . self.root.name, . self.cnum, . ) . }) 4,880 ( 0.00%) } . 639 ( 0.00%) fn get_span(self, index: DefIndex, sess: &Session) -> Span { 2,818 ( 0.00%) self.root . .tables . .span . .get(self, index) . .unwrap_or_else(|| panic!("Missing span for {:?}", index)) . .decode((self, sess)) 355 ( 0.00%) } . . fn load_proc_macro(self, id: DefIndex, sess: &Session) -> SyntaxExtension { . let (name, kind, helper_attrs) = match *self.raw_proc_macro(id) { . ProcMacro::CustomDerive { trait_name, attributes, client } => { . let helper_attrs = . attributes.iter().cloned().map(Symbol::intern).collect::>(); . ( . trait_name, -- line 778 ---------------------------------------- -- line 795 ---------------------------------------- . self.get_span(id, sess), . helper_attrs, . self.root.edition, . Symbol::intern(name), . &attrs, . ) . } . 221 ( 0.00%) fn get_trait_def(self, item_id: DefIndex, sess: &Session) -> ty::TraitDef { 68 ( 0.00%) match self.kind(item_id) { 17 ( 0.00%) EntryKind::Trait(data) => { 102 ( 0.00%) let data = data.decode((self, sess)); 272 ( 0.00%) ty::TraitDef::new( . self.local_def_id(item_id), 34 ( 0.00%) data.unsafety, 34 ( 0.00%) data.paren_sugar, 34 ( 0.00%) data.has_auto_impl, 34 ( 0.00%) data.is_marker, 17 ( 0.00%) data.skip_array_during_method_dispatch, 17 ( 0.00%) data.specialization_kind, 68 ( 0.00%) self.def_path_hash(item_id), 17 ( 0.00%) data.must_implement_one_of, . ) . } . EntryKind::TraitAlias => ty::TraitDef::new( . self.local_def_id(item_id), . hir::Unsafety::Normal, . false, . false, . false, . false, . ty::trait_def::TraitSpecializationKind::None, . self.def_path_hash(item_id), . None, . ), . _ => bug!("def-index does not refer to trait or trait alias"), . } 153 ( 0.00%) } . 108 ( 0.00%) fn get_variant( . self, . kind: &EntryKind, . index: DefIndex, . parent_did: DefId, . sess: &Session, . ) -> ty::VariantDef { 48 ( 0.00%) let data = match kind { . EntryKind::Variant(data) | EntryKind::Struct(data, _) | EntryKind::Union(data, _) => { 60 ( 0.00%) data.decode(self) . } . _ => bug!(), . }; . 34 ( 0.00%) let adt_kind = match kind { . EntryKind::Variant(_) => ty::AdtKind::Enum, . EntryKind::Struct(..) => ty::AdtKind::Struct, . EntryKind::Union(..) => ty::AdtKind::Union, . _ => bug!(), . }; . . let variant_did = . if adt_kind == ty::AdtKind::Enum { Some(self.local_def_id(index)) } else { None }; 24 ( 0.00%) let ctor_did = data.ctor.map(|index| self.local_def_id(index)); . 264 ( 0.00%) ty::VariantDef::new( . self.item_ident(index, sess).name, . variant_did, . ctor_did, 48 ( 0.00%) data.discr, 72 ( 0.00%) self.root . .tables . .children . .get(self, index) . .unwrap_or_else(Lazy::empty) . .decode(self) . .map(|index| ty::FieldDef { 17 ( 0.00%) did: self.local_def_id(index), 34 ( 0.00%) name: self.item_ident(index, sess).name, 34 ( 0.00%) vis: self.get_visibility(index), . }) . .collect(), . data.ctor_kind, . adt_kind, . parent_did, . false, 12 ( 0.00%) data.is_non_exhaustive, . ) 108 ( 0.00%) } . 120 ( 0.00%) fn get_adt_def(self, item_id: DefIndex, tcx: TyCtxt<'tcx>) -> &'tcx ty::AdtDef { 32 ( 0.00%) let kind = self.kind(item_id); 16 ( 0.00%) let did = self.local_def_id(item_id); . 34 ( 0.00%) let (adt_kind, repr) = match kind { . EntryKind::Enum(repr) => (ty::AdtKind::Enum, repr), . EntryKind::Struct(_, repr) => (ty::AdtKind::Struct, repr), . EntryKind::Union(_, repr) => (ty::AdtKind::Union, repr), . _ => bug!("get_adt_def called on a non-ADT {:?}", did), . }; . . let variants = if let ty::AdtKind::Enum = adt_kind { 15 ( 0.00%) self.root . .tables . .children . .get(self, item_id) . .unwrap_or_else(Lazy::empty) . .decode(self) 119 ( 0.00%) .map(|index| self.get_variant(&self.kind(index), index, did, tcx.sess)) . .collect() . } else { 40 ( 0.00%) std::iter::once(self.get_variant(&kind, item_id, did, tcx.sess)).collect() . }; . 127 ( 0.00%) tcx.alloc_adt_def(did, adt_kind, variants, repr) 56 ( 0.00%) } . . fn get_explicit_predicates( . self, . item_id: DefIndex, . tcx: TyCtxt<'tcx>, . ) -> ty::GenericPredicates<'tcx> { 385 ( 0.00%) self.root.tables.explicit_predicates.get(self, item_id).unwrap().decode((self, tcx)) . } . . fn get_inferred_outlives( . self, . item_id: DefIndex, . tcx: TyCtxt<'tcx>, . ) -> &'tcx [(ty::Predicate<'tcx>, Span)] { 385 ( 0.00%) self.root . .tables . .inferred_outlives . .get(self, item_id) 16 ( 0.00%) .map(|predicates| tcx.arena.alloc_from_iter(predicates.decode((self, tcx)))) . .unwrap_or_default() . } . . fn get_super_predicates( . self, . item_id: DefIndex, . tcx: TyCtxt<'tcx>, . ) -> ty::GenericPredicates<'tcx> { 65 ( 0.00%) self.root.tables.super_predicates.get(self, item_id).unwrap().decode((self, tcx)) . } . . fn get_explicit_item_bounds( . self, . item_id: DefIndex, . tcx: TyCtxt<'tcx>, . ) -> &'tcx [(ty::Predicate<'tcx>, Span)] { . self.root -- line 945 ---------------------------------------- -- line 946 ---------------------------------------- . .tables . .explicit_item_bounds . .get(self, item_id) . .map(|bounds| tcx.arena.alloc_from_iter(bounds.decode((self, tcx)))) . .unwrap_or_default() . } . . fn get_generics(self, item_id: DefIndex, sess: &Session) -> ty::Generics { 717 ( 0.00%) self.root.tables.generics.get(self, item_id).unwrap().decode((self, sess)) . } . . fn get_type(self, id: DefIndex, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { 6,690 ( 0.00%) self.root . .tables . .ty . .get(self, id) . .unwrap_or_else(|| panic!("Not a type: {:?}", id)) . .decode((self, tcx)) . } . . fn get_stability(self, id: DefIndex) -> Option { 245 ( 0.00%) self.root.tables.stability.get(self, id).map(|stab| stab.decode(self)) . } . . fn get_const_stability(self, id: DefIndex) -> Option { 5 ( 0.00%) self.root.tables.const_stability.get(self, id).map(|stab| stab.decode(self)) . } . . fn get_deprecation(self, id: DefIndex) -> Option { 230 ( 0.00%) self.root.tables.deprecation.get(self, id).map(|depr| depr.decode(self)) . } . 30 ( 0.00%) fn get_visibility(self, id: DefIndex) -> ty::Visibility { 1,931 ( 0.00%) self.root.tables.visibility.get(self, id).unwrap().decode(self) 20 ( 0.00%) } . . fn get_impl_data(self, id: DefIndex) -> ImplData { 35,208 ( 0.02%) match self.kind(id) { 29,340 ( 0.01%) EntryKind::Impl(data) => data.decode(self), . _ => bug!(), . } . } . . fn get_parent_impl(self, id: DefIndex) -> Option { 17,538 ( 0.01%) self.get_impl_data(id).parent_impl . } . . fn get_impl_polarity(self, id: DefIndex) -> ty::ImplPolarity { 21 ( 0.00%) self.get_impl_data(id).polarity . } . . fn get_impl_defaultness(self, id: DefIndex) -> hir::Defaultness { 1 ( 0.00%) self.get_impl_data(id).defaultness . } . . fn get_impl_constness(self, id: DefIndex) -> hir::Constness { . self.get_impl_data(id).constness . } . . fn get_trait_item_def_id(self, id: DefIndex) -> Option { 295 ( 0.00%) self.root.tables.trait_item_def_id.get(self, id).map(|d| d.decode(self)) . } . . fn get_coerce_unsized_info(self, id: DefIndex) -> Option { . self.get_impl_data(id).coerce_unsized_info . } . . fn get_impl_trait(self, id: DefIndex, tcx: TyCtxt<'tcx>) -> Option> { 70,253 ( 0.03%) self.root.tables.impl_trait_ref.get(self, id).map(|tr| tr.decode((self, tcx))) . } . . fn get_expn_that_defined(self, id: DefIndex, sess: &Session) -> ExpnId { 1,485 ( 0.00%) self.root.tables.expn_that_defined.get(self, id).unwrap().decode((self, sess)) . } . . fn get_const_param_default( . self, . tcx: TyCtxt<'tcx>, . id: DefIndex, . ) -> rustc_middle::ty::Const<'tcx> { . self.root.tables.const_defaults.get(self, id).unwrap().decode((self, tcx)) -- line 1026 ---------------------------------------- -- line 1028 ---------------------------------------- . . /// Iterates over all the stability attributes in the given crate. . fn get_lib_features(self, tcx: TyCtxt<'tcx>) -> &'tcx [(Symbol, Option)] { . tcx.arena.alloc_from_iter(self.root.lib_features.decode(self)) . } . . /// Iterates over the language items in the given crate. . fn get_lang_items(self, tcx: TyCtxt<'tcx>) -> &'tcx [(DefId, usize)] { 69 ( 0.00%) tcx.arena.alloc_from_iter( 46 ( 0.00%) self.root . .lang_items . .decode(self) 564 ( 0.00%) .map(|(def_index, index)| (self.local_def_id(def_index), index)), . ) . } . . /// Iterates over the diagnostic items in the given crate. . fn get_diagnostic_items(self) -> DiagnosticItems { . let mut id_to_name = FxHashMap::default(); 46 ( 0.00%) let name_to_id = self . .root . .diagnostic_items . .decode(self) . .map(|(name, def_index)| { 130 ( 0.00%) let id = self.local_def_id(def_index); 130 ( 0.00%) id_to_name.insert(id, name); . (name, id) . }) . .collect(); 207 ( 0.00%) DiagnosticItems { id_to_name, name_to_id } . } . . /// Iterates over all named children of the given module, . /// including both proper items and reexports. . /// Module here is understood in name resolution sense - it can be a `mod` item, . /// or a crate root, or an enum, or a trait. . fn for_each_module_child( . self, . id: DefIndex, . mut callback: impl FnMut(ModChild), . sess: &Session, . ) { 196 ( 0.00%) if let Some(data) = &self.root.proc_macro_data { . // If we are loading as a proc macro, we want to return . // the view of this crate as a proc macro crate. . if id == CRATE_DEF_INDEX { . for def_index in data.macros.decode(self) { . let raw_macro = self.raw_proc_macro(def_index); . let res = Res::Def( . DefKind::Macro(macro_kind(raw_macro)), . self.local_def_id(def_index), -- line 1078 ---------------------------------------- -- line 1085 ---------------------------------------- . span: ident.span, . }); . } . } . return; . } . . // Iterate over all children. 392 ( 0.00%) if let Some(children) = self.root.tables.children.get(self, id) { 784 ( 0.00%) for child_index in children.decode((self, sess)) { 7,068 ( 0.00%) if let Some(ident) = self.opt_item_ident(child_index, sess) { 1,905 ( 0.00%) let kind = self.def_kind(child_index); 1,270 ( 0.00%) if matches!(kind, DefKind::Macro(..)) { . // FIXME: Macros are currently encoded twice, once as items and once as . // reexports. We ignore the items here and only use the reexports. . continue; . } . let def_id = self.local_def_id(child_index); . let res = Res::Def(kind, def_id); . let vis = self.get_visibility(child_index); . let span = self.get_span(child_index, sess); . . callback(ModChild { ident, res, vis, span }); . . // For non-re-export structs and variants add their constructors to children. . // Re-export lists automatically contain constructors when necessary. 2,474 ( 0.00%) match kind { . DefKind::Struct => { 17 ( 0.00%) if let Some((ctor_def_id, ctor_kind)) = . self.get_ctor_def_id_and_kind(child_index) . { . let ctor_res = . Res::Def(DefKind::Ctor(CtorOf::Struct, ctor_kind), ctor_def_id); . let vis = self.get_visibility(ctor_def_id.index); . callback(ModChild { ident, res: ctor_res, vis, span }); . } . } . DefKind::Variant => { . // Braced variants, unlike structs, generate unusable names in . // value namespace, they are reserved for possible future use. . // It's ok to use the variant's id as a ctor id since an . // error will be reported on any use of such resolution anyway. 9 ( 0.00%) let (ctor_def_id, ctor_kind) = self . .get_ctor_def_id_and_kind(child_index) . .unwrap_or((def_id, CtorKind::Fictive)); . let ctor_res = . Res::Def(DefKind::Ctor(CtorOf::Variant, ctor_kind), ctor_def_id); . let mut vis = self.get_visibility(ctor_def_id.index); 9 ( 0.00%) if ctor_def_id == def_id && vis.is_public() { . // For non-exhaustive variants lower the constructor visibility to . // within the crate. We only need this for fictive constructors, . // for other constructors correct visibilities . // were already encoded in metadata. 6 ( 0.00%) let mut attrs = self.get_item_attrs(def_id.index, sess); 4 ( 0.00%) if attrs.any(|item| item.has_name(sym::non_exhaustive)) { . let crate_def_id = self.local_def_id(CRATE_DEF_INDEX); . vis = ty::Visibility::Restricted(crate_def_id); . } . } . callback(ModChild { ident, res: ctor_res, vis, span }); . } . _ => {} . } . } . } . } . 505 ( 0.00%) match self.kind(id) { 30 ( 0.00%) EntryKind::Mod(exports) => { 804 ( 0.00%) for exp in exports.decode((self, sess)) { . callback(exp); . } . } . EntryKind::Enum(..) | EntryKind::Trait(..) => {} . _ => bug!("`for_each_module_child` is called on a non-module: {:?}", self.def_kind(id)), . } . } . -- line 1162 ---------------------------------------- -- line 1164 ---------------------------------------- . self.root.tables.mir_for_ctfe.get(self, id).is_some() . } . . fn is_item_mir_available(self, id: DefIndex) -> bool { . self.root.tables.mir.get(self, id).is_some() . } . . fn module_expansion(self, id: DefIndex, sess: &Session) -> ExpnId { 2,037 ( 0.00%) match self.kind(id) { . EntryKind::Mod(_) | EntryKind::Enum(_) | EntryKind::Trait(_) => { . self.get_expn_that_defined(id, sess) . } . _ => panic!("Expected module, found {:?}", self.local_def_id(id)), . } . } . . fn get_optimized_mir(self, tcx: TyCtxt<'tcx>, id: DefIndex) -> Body<'tcx> { -- line 1180 ---------------------------------------- -- line 1242 ---------------------------------------- . qualif, . _, . ) => qualif, . _ => bug!("mir_const_qualif: unexpected kind"), . } . } . . fn get_fn_has_self_parameter(self, id: DefIndex) -> bool { 610 ( 0.00%) match self.kind(id) { 488 ( 0.00%) EntryKind::AssocFn(data) => data.decode(self).has_self, . _ => false, . } . } . . fn get_associated_item_def_ids(self, tcx: TyCtxt<'tcx>, id: DefIndex) -> &'tcx [DefId] { 133 ( 0.00%) if let Some(children) = self.root.tables.children.get(self, id) { 57 ( 0.00%) tcx.arena.alloc_from_iter( 19 ( 0.00%) children.decode((self, tcx.sess)).map(|child_index| self.local_def_id(child_index)), . ) . } else { . &[] . } . } . 684 ( 0.00%) fn get_associated_item(self, id: DefIndex, sess: &Session) -> ty::AssocItem { 399 ( 0.00%) let def_key = self.def_key(id); . let parent = self.local_def_id(def_key.parent.unwrap()); . let ident = self.item_ident(id, sess); . 401 ( 0.00%) let (kind, container, has_self) = match self.kind(id) { . EntryKind::AssocConst(container, _, _) => (ty::AssocKind::Const, container, false), 56 ( 0.00%) EntryKind::AssocFn(data) => { . let data = data.decode(self); 392 ( 0.00%) (ty::AssocKind::Fn, data.container, data.has_self) . } 2 ( 0.00%) EntryKind::AssocType(container) => (ty::AssocKind::Type, container, false), . _ => bug!("cannot get associated-item of `{:?}`", def_key), . }; . 1,026 ( 0.00%) ty::AssocItem { . name: ident.name, . kind, . vis: self.get_visibility(id), . defaultness: container.defaultness(), . def_id: self.local_def_id(id), . trait_item_def_id: self.get_trait_item_def_id(id), . container: container.with_def_id(parent), . fn_has_self_parameter: has_self, . } 513 ( 0.00%) } . . fn get_item_variances(self, id: DefIndex) -> impl Iterator + 'a { 90 ( 0.00%) self.root.tables.variances.get(self, id).unwrap_or_else(Lazy::empty).decode(self) . } . . fn get_ctor_def_id_and_kind(self, node_id: DefIndex) -> Option<(DefId, CtorKind)> { 505 ( 0.00%) match self.kind(node_id) { . EntryKind::Struct(data, _) | EntryKind::Variant(data) => { 218 ( 0.00%) let vdata = data.decode(self); 134 ( 0.00%) vdata.ctor.map(|index| (self.local_def_id(index), vdata.ctor_kind)) . } . _ => None, . } 248 ( 0.00%) } . 252 ( 0.00%) fn get_item_attrs( . self, . id: DefIndex, . sess: &'a Session, . ) -> impl Iterator + 'a { 273 ( 0.00%) self.root . .tables . .attributes . .get(self, id) . .unwrap_or_else(|| { . // Structure and variant constructors don't have any attributes encoded for them, . // but we assume that someone passing a constructor ID actually wants to look at . // the attributes on the corresponding struct or variant. . let def_key = self.def_key(id); -- line 1320 ---------------------------------------- -- line 1322 ---------------------------------------- . let parent_id = def_key.parent.expect("no parent for a constructor"); . self.root . .tables . .attributes . .get(self, parent_id) . .expect("no encoded attributes for a structure or variant") . }) . .decode((self, sess)) 189 ( 0.00%) } . . fn get_struct_field_names( . self, . id: DefIndex, . sess: &'a Session, . ) -> impl Iterator> + 'a { 230 ( 0.00%) self.root . .tables . .children . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 710 ( 0.00%) .map(move |index| respan(self.get_span(index, sess), self.item_ident(index, sess).name)) . } . . fn get_struct_field_visibilities(self, id: DefIndex) -> impl Iterator + 'a { 50 ( 0.00%) self.root . .tables . .children . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 10 ( 0.00%) .map(move |field_index| self.get_visibility(field_index)) . } . . fn get_inherent_implementations_for_type( . self, . tcx: TyCtxt<'tcx>, . id: DefIndex, . ) -> &'tcx [DefId] { 20 ( 0.00%) tcx.arena.alloc_from_iter( 25 ( 0.00%) self.root . .tables . .inherent_impls . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 63 ( 0.00%) .map(|index| self.local_def_id(index)), . ) . } . . fn get_traits(self) -> impl Iterator + 'a { . self.root.traits.decode(self).map(move |index| self.local_def_id(index)) . } . . fn get_trait_impls(self) -> impl Iterator)> + 'a { -- line 1376 ---------------------------------------- -- line 1380 ---------------------------------------- . index: *trait_index, . }; . impls.decode(self).map(move |(impl_index, simplified_self_ty)| { . (trait_def_id, self.local_def_id(impl_index), simplified_self_ty) . }) . }) . } . 3,519 ( 0.00%) fn get_implementations_of_trait( . self, . tcx: TyCtxt<'tcx>, . trait_def_id: DefId, . ) -> &'tcx [(DefId, Option)] { 391 ( 0.00%) if self.trait_impls.is_empty() { . return &[]; . } . . // Do a reverse lookup beforehand to avoid touching the crate_num . // hash map in the loop below. 582 ( 0.00%) let key = match self.reverse_translate_def_id(trait_def_id) { . Some(def_id) => (def_id.krate.as_u32(), def_id.index), . None => return &[], . }; . . if let Some(impls) = self.trait_impls.get(&key) { 544 ( 0.00%) tcx.arena.alloc_from_iter( 272 ( 0.00%) impls . .decode(self) 5,926 ( 0.00%) .map(|(idx, simplified_self_ty)| (self.local_def_id(idx), simplified_self_ty)), . ) . } else { . &[] . } 3,128 ( 0.00%) } . . fn get_trait_of_item(self, id: DefIndex) -> Option { 32 ( 0.00%) let def_key = self.def_key(id); 40 ( 0.00%) match def_key.disambiguated_data.data { . DefPathData::TypeNs(..) | DefPathData::ValueNs(..) => (), . // Not an associated item . _ => return None, . } 72 ( 0.00%) def_key.parent.and_then(|parent_index| match self.kind(parent_index) { . EntryKind::Trait(_) | EntryKind::TraitAlias => Some(self.local_def_id(parent_index)), . _ => None, . }) . } . . fn get_native_libraries(self, sess: &'a Session) -> impl Iterator + 'a { 46 ( 0.00%) self.root.native_libraries.decode((self, sess)) . } . . fn get_proc_macro_quoted_span(self, index: usize, sess: &Session) -> Span { . self.root . .tables . .proc_macro_quoted_spans . .get(self, index) . .unwrap_or_else(|| panic!("Missing proc macro quoted span: {:?}", index)) -- line 1437 ---------------------------------------- -- line 1450 ---------------------------------------- . self.root.dylib_dependency_formats.decode(self).enumerate().flat_map(|(i, link)| { . let cnum = CrateNum::new(i + 1); . link.map(|link| (self.cnum_map[cnum], link)) . }), . ) . } . . fn get_missing_lang_items(self, tcx: TyCtxt<'tcx>) -> &'tcx [lang_items::LangItem] { 115 ( 0.00%) tcx.arena.alloc_from_iter(self.root.lang_items_missing.decode(self)) . } . . fn get_fn_param_names(self, tcx: TyCtxt<'tcx>, id: DefIndex) -> &'tcx [Ident] { . let param_names = match self.kind(id) { . EntryKind::Fn(data) | EntryKind::ForeignFn(data) => data.decode(self).param_names, . EntryKind::AssocFn(data) => data.decode(self).fn_data.param_names, . _ => Lazy::empty(), . }; -- line 1466 ---------------------------------------- -- line 1479 ---------------------------------------- . EntryKind::AnonConst(_, data) . | EntryKind::Const(_, data) . | EntryKind::AssocConst(_, _, data) => data.decode(self).0, . _ => bug!(), . } . } . . fn get_macro(self, id: DefIndex, sess: &Session) -> MacroDef { 60 ( 0.00%) match self.kind(id) { 10 ( 0.00%) EntryKind::MacroDef(macro_def) => macro_def.decode((self, sess)), . _ => bug!(), . } . } . . // This replicates some of the logic of the crate-local `is_const_fn_raw` query, because we . // don't serialize constness for tuple variant and tuple struct constructors. . fn is_const_fn_raw(self, id: DefIndex) -> bool { 36 ( 0.00%) let constness = match self.kind(id) { 6 ( 0.00%) EntryKind::AssocFn(data) => data.decode(self).fn_data.constness, . EntryKind::Fn(data) => data.decode(self).constness, 6 ( 0.00%) EntryKind::ForeignFn(data) => data.decode(self).constness, . EntryKind::Variant(..) | EntryKind::Struct(..) => hir::Constness::Const, . _ => hir::Constness::NotConst, . }; . constness == hir::Constness::Const . } . . fn asyncness(self, id: DefIndex) -> hir::IsAsync { . match self.kind(id) { -- line 1507 ---------------------------------------- -- line 1532 ---------------------------------------- . fn generator_kind(self, id: DefIndex) -> Option { . match self.kind(id) { . EntryKind::Generator(data) => Some(data), . _ => None, . } . } . . fn fn_sig(self, id: DefIndex, tcx: TyCtxt<'tcx>) -> ty::PolyFnSig<'tcx> { 120 ( 0.00%) self.root.tables.fn_sig.get(self, id).unwrap().decode((self, tcx)) . } . . #[inline] 14,413 ( 0.01%) fn def_key(self, index: DefIndex) -> DefKey { 4,118 ( 0.00%) *self . .def_key_cache . .lock() . .entry(index) 6,810 ( 0.00%) .or_insert_with(|| self.root.tables.def_keys.get(self, index).unwrap().decode(self)) 16,472 ( 0.01%) } . . // Returns the path leading to the thing with this `id`. . fn def_path(self, id: DefIndex) -> DefPath { . debug!("def_path(cnum={:?}, id={:?})", self.cnum, id); . DefPath::make(self.cnum, id, |parent| self.def_key(parent)) . } . . fn def_path_hash_unlocked( . self, . index: DefIndex, . def_path_hashes: &mut FxHashMap, . ) -> DefPathHash { 1,234 ( 0.00%) *def_path_hashes.entry(index).or_insert_with(|| { 355 ( 0.00%) self.root.tables.def_path_hashes.get(self, index).unwrap().decode(self) . }) . } . . #[inline] 4,319 ( 0.00%) fn def_path_hash(self, index: DefIndex) -> DefPathHash { . let mut def_path_hashes = self.def_path_hash_cache.lock(); . self.def_path_hash_unlocked(index, &mut def_path_hashes) 4,936 ( 0.00%) } . . #[inline] . fn def_path_hash_to_def_index(self, hash: DefPathHash) -> DefIndex { . self.def_path_hash_map.def_path_hash_to_def_index(&hash) . } . . fn expn_hash_to_expn_id(self, sess: &Session, index_guess: u32, hash: ExpnHash) -> ExpnId { . debug_assert_eq!(ExpnId::from_hash(hash), None); -- line 1580 ---------------------------------------- -- line 1635 ---------------------------------------- . /// Proc macro crates don't currently export spans, so this function does not have . /// to work for them. . fn imported_source_files(self, sess: &Session) -> &'a [ImportedSourceFile] { . // Translate the virtual `/rustc/$hash` prefix back to a real directory . // that should hold actual sources, where possible. . // . // NOTE: if you update this, you might need to also update bootstrap's code for generating . // the `rust-src` component in `Src::run` in `src/bootstrap/dist.rs`. 9,896 ( 0.00%) let virtual_rust_source_base_dir = option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR") . .map(Path::new) . .filter(|_| { . // Only spend time on further checks if we have what to translate *to*. . sess.opts.real_rust_source_base_dir.is_some() . }) . .filter(|virtual_dir| { . // Don't translate away `/rustc/$hash` if we're still remapping to it, . // since that means we're still building `std`/`rustc` that need it, . // and we don't want the real path to leak into codegen/debuginfo. . !sess.opts.remap_path_prefix.iter().any(|(_from, to)| to == virtual_dir) . }); 9,896 ( 0.00%) let try_to_translate_virtual_to_real = |name: &mut rustc_span::FileName| { . debug!( . "try_to_translate_virtual_to_real(name={:?}): \ . virtual_rust_source_base_dir={:?}, real_rust_source_base_dir={:?}", . name, virtual_rust_source_base_dir, sess.opts.real_rust_source_base_dir, . ); . 2,710 ( 0.00%) if let Some(virtual_dir) = virtual_rust_source_base_dir { . if let Some(real_dir) = &sess.opts.real_rust_source_base_dir { . if let rustc_span::FileName::Real(old_name) = name { . if let rustc_span::RealFileName::Remapped { local_path: _, virtual_name } = . old_name . { . if let Ok(rest) = virtual_name.strip_prefix(virtual_dir) { . let virtual_name = virtual_name.clone(); . -- line 1670 ---------------------------------------- -- line 1709 ---------------------------------------- . *old_name = new_name; . } . } . } . } . } . }; . 9,861 ( 0.00%) self.cdata.source_map_import_info.get_or_init(|| { 30 ( 0.00%) let external_source_map = self.root.source_map.decode(self); . . external_source_map . .map(|source_file_to_import| { . // We can't reuse an existing SourceFile, so allocate a new one . // containing the information we need. . let rustc_span::SourceFile { 11,382 ( 0.01%) mut name, 3,252 ( 0.00%) src_hash, 542 ( 0.00%) start_pos, 1,084 ( 0.00%) end_pos, 2,710 ( 0.00%) mut lines, 2,710 ( 0.00%) mut multibyte_chars, 3,252 ( 0.00%) mut non_narrow_chars, 2,710 ( 0.00%) mut normalized_pos, 3,252 ( 0.00%) name_hash, . .. . } = source_file_to_import; . . // If this file is under $sysroot/lib/rustlib/src/ but has not been remapped . // during rust bootstrapping by `remap-debuginfo = true`, and the user . // wish to simulate that behaviour by -Z simulate-remapped-rust-src-base, . // then we change `name` to a similar state as if the rust was bootstrapped . // with `remap-debuginfo = true`. . // This is useful for testing so that tests about the effects of . // `try_to_translate_virtual_to_real` don't have to worry about how the . // compiler is bootstrapped. 1,084 ( 0.00%) if let Some(virtual_dir) = . &sess.opts.debugging_opts.simulate_remapped_rust_src_base . { . if let Some(real_dir) = &sess.opts.real_rust_source_base_dir { . if let rustc_span::FileName::Real(ref mut old_name) = name { . if let rustc_span::RealFileName::LocalPath(local) = old_name { . if let Ok(rest) = local.strip_prefix(real_dir) { . *old_name = rustc_span::RealFileName::Remapped { . local_path: None, -- line 1753 ---------------------------------------- -- line 1767 ---------------------------------------- . let source_length = (end_pos - start_pos).to_usize(); . . // Translate line-start positions and multibyte character . // position into frame of reference local to file. . // `SourceMap::new_imported_source_file()` will then translate those . // coordinates to their new global frame of reference when the . // offset of the SourceFile is known. . for pos in &mut lines { 722,466 ( 0.35%) *pos = *pos - start_pos; . } . for mbc in &mut multibyte_chars { 1,602 ( 0.00%) mbc.pos = mbc.pos - start_pos; . } . for swc in &mut non_narrow_chars { 924 ( 0.00%) *swc = *swc - start_pos; . } . for np in &mut normalized_pos { . np.pos = np.pos - start_pos; . } . 9,756 ( 0.00%) let local_version = sess.source_map().new_imported_source_file( 7,046 ( 0.00%) name, 3,794 ( 0.00%) src_hash, . name_hash, . source_length, 1,084 ( 0.00%) self.cnum, 2,710 ( 0.00%) lines, 3,252 ( 0.00%) multibyte_chars, 2,710 ( 0.00%) non_narrow_chars, 2,168 ( 0.00%) normalized_pos, . start_pos, . end_pos, . ); . debug!( . "CrateMetaData::imported_source_files alloc \ . source_file {:?} original (start_pos {:?} end_pos {:?}) \ . translated (start_pos {:?} end_pos {:?})", . local_version.name, -- line 1804 ---------------------------------------- -- line 1808 ---------------------------------------- . local_version.end_pos . ); . . ImportedSourceFile { . original_start_pos: start_pos, . original_end_pos: end_pos, . translated_source_file: local_version, . } 1,626 ( 0.00%) }) . .collect() . }) . } . } . . impl CrateMetadata { 276 ( 0.00%) crate fn new( . sess: &Session, . blob: MetadataBlob, . root: CrateRoot<'static>, . raw_proc_macros: Option<&'static [ProcMacro]>, . cnum: CrateNum, . cnum_map: CrateNumMap, . dep_kind: CrateDepKind, . source: CrateSource, . private_dep: bool, . host_hash: Option, . ) -> CrateMetadata { 69 ( 0.00%) let trait_impls = root . .impls . .decode((&blob, sess)) . .map(|trait_impls| (trait_impls.trait_id, trait_impls.impls)) . .collect(); . let alloc_decoding_state = 69 ( 0.00%) AllocDecodingState::new(root.interpret_alloc_index.decode(&blob).collect()); . let dependencies = Lock::new(cnum_map.iter().cloned().collect()); . . // Pre-decode the DefPathHash->DefIndex table. This is a cheap operation . // that does not copy any data. It just does some data verification. 23 ( 0.00%) let def_path_hash_map = root.def_path_hash_map.decode(&blob); . 529 ( 0.00%) CrateMetadata { 23 ( 0.00%) blob, 69 ( 0.00%) root, 92 ( 0.00%) trait_impls, . raw_proc_macros, . source_map_import_info: OnceCell::new(), 92 ( 0.00%) def_path_hash_map, . expn_hash_map: Default::default(), 161 ( 0.00%) alloc_decoding_state, . cnum, 92 ( 0.00%) cnum_map, 115 ( 0.00%) dependencies, . dep_kind: Lock::new(dep_kind), 276 ( 0.00%) source, . private_dep, . host_hash, . extern_crate: Lock::new(None), . hygiene_context: Default::default(), . def_key_cache: Default::default(), . def_path_hash_cache: Default::default(), . } 207 ( 0.00%) } . . crate fn dependencies(&self) -> LockGuard<'_, Vec> { . self.dependencies.borrow() . } . . crate fn add_dependency(&self, cnum: CrateNum) { . self.dependencies.borrow_mut().push(cnum); . } . . crate fn update_extern_crate(&self, new_extern_crate: ExternCrate) -> bool { . let mut extern_crate = self.extern_crate.borrow_mut(); . let update = Some(new_extern_crate.rank()) > extern_crate.as_ref().map(ExternCrate::rank); . if update { 120 ( 0.00%) *extern_crate = Some(new_extern_crate); . } . update . } . . crate fn source(&self) -> &CrateSource { 124 ( 0.00%) &self.source . } . . crate fn dep_kind(&self) -> CrateDepKind { . *self.dep_kind.lock() . } . . crate fn update_dep_kind(&self, f: impl FnOnce(CrateDepKind) -> CrateDepKind) { 159 ( 0.00%) self.dep_kind.with_lock(|dep_kind| *dep_kind = f(*dep_kind)) . } . . crate fn panic_strategy(&self) -> PanicStrategy { . self.root.panic_strategy . } . . crate fn needs_panic_runtime(&self) -> bool { . self.root.needs_panic_runtime -- line 1905 ---------------------------------------- -- line 1909 ---------------------------------------- . self.root.panic_runtime . } . . crate fn is_profiler_runtime(&self) -> bool { . self.root.profiler_runtime . } . . crate fn needs_allocator(&self) -> bool { 5 ( 0.00%) self.root.needs_allocator . } . . crate fn has_global_allocator(&self) -> bool { . self.root.has_global_allocator . } . . crate fn has_default_lib_allocator(&self) -> bool { . self.root.has_default_lib_allocator . } . . crate fn is_proc_macro_crate(&self) -> bool { . self.root.is_proc_macro_crate() . } . . crate fn name(&self) -> Symbol { 427 ( 0.00%) self.root.name . } . . crate fn stable_crate_id(&self) -> StableCrateId { . self.root.stable_crate_id . } . . crate fn hash(&self) -> Svh { . self.root.hash . } . . fn num_def_ids(&self) -> usize { . self.root.tables.def_keys.size() . } . . fn local_def_id(&self, index: DefIndex) -> DefId { 9,652 ( 0.00%) DefId { krate: self.cnum, index } . } . . // Translate a DefId from the current compilation environment to a DefId . // for an external crate. . fn reverse_translate_def_id(&self, did: DefId) -> Option { . for (local, &global) in self.cnum_map.iter_enumerated() { 1,222 ( 0.00%) if global == did.krate { . return Some(DefId { krate: local, index: did.index }); . } . } . . None . } . } . -- line 1964 ---------------------------------------- 213,928 ( 0.10%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/ptr/mod.rs -------------------------------------------------------------------------------- Ir -- line 180 ---------------------------------------- . /// assert_eq!(v, &[0.into()]); . /// . /// // Ensure that the last item was dropped. . /// assert!(weak.upgrade().is_none()); . /// ``` . #[stable(feature = "drop_in_place", since = "1.8.0")] . #[lang = "drop_in_place"] . #[allow(unconditional_recursion)] 1,488,609 ( 0.73%) pub unsafe fn drop_in_place(to_drop: *mut T) { . // Code here does not matter - this is replaced by the . // real drop glue by the compiler. . . // SAFETY: see comment above . unsafe { drop_in_place(to_drop) } . } . . /// Creates a null raw pointer. -- line 196 ---------------------------------------- -- line 448 ---------------------------------------- . return; . } . } . . // Direct swapping, for the cases not going through the block optimization. . // SAFETY: the caller must guarantee that `x` and `y` are valid . // for writes, properly aligned, and non-overlapping. . unsafe { 3 ( 0.00%) let z = read(x); . copy_nonoverlapping(y, x, 1); . write(y, z); . } . } . . #[inline] . #[rustc_const_unstable(feature = "const_swap", issue = "83163")] . const unsafe fn swap_nonoverlapping_bytes(x: *mut u8, y: *mut u8, len: usize) { -- line 464 ---------------------------------------- -- line 693 ---------------------------------------- . let mut tmp = MaybeUninit::::uninit(); . // SAFETY: the caller must guarantee that `src` is valid for reads. . // `src` cannot overlap `tmp` because `tmp` was just allocated on . // the stack as a separate allocated object. . // . // Also, since we just wrote a valid value into `tmp`, it is guaranteed . // to be properly initialized. . unsafe { 41,400 ( 0.02%) copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); 353,912 ( 0.17%) tmp.assume_init() . } . } . . /// Reads the value from `src` without moving it. This leaves the . /// memory in `src` unchanged. . /// . /// Unlike [`read`], `read_unaligned` works with unaligned pointers. . /// -- line 710 ---------------------------------------- -- line 884 ---------------------------------------- . #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")] . fn copy_nonoverlapping(src: *const T, dst: *mut T, count: usize); . } . . // SAFETY: the caller must guarantee that `dst` is valid for writes. . // `dst` cannot overlap `src` because the caller has mutable access . // to `dst` while `src` is owned by this function. . unsafe { 2,694,556 ( 1.32%) copy_nonoverlapping(&src as *const T, dst, 1); . intrinsics::forget(src); . } . } . . /// Overwrites a memory location with the given value without reading or . /// dropping the old value. . /// . /// Unlike [`write()`], the pointer may be unaligned. -- line 900 ---------------------------------------- -- line 1206 ---------------------------------------- . if stride == 1 { . // `stride == 1` case can be computed more simply through `-p (mod a)`, but doing so . // inhibits LLVM's ability to select instructions like `lea`. Instead we compute . // . // round_up_to_next_alignment(p, a) - p . // . // which distributes operations around the load-bearing, but pessimizing `and` sufficiently . // for LLVM to be able to utilize the various optimizations it knows about. 105 ( 0.00%) return wrapping_sub( 716 ( 0.00%) wrapping_add(p as usize, a_minus_one) & wrapping_sub(0, a), . p as usize, . ); . } . . let pmoda = p as usize & a_minus_one; . if pmoda == 0 { . // Already aligned. Yay! . return 0; -- line 1223 ---------------------------------------- -- line 1348 ---------------------------------------- . /// assert!(std::ptr::eq( . /// &wrapper as &dyn Trait as *const dyn Trait as *const u8, . /// &wrapper.member as &dyn Trait as *const dyn Trait as *const u8, . /// )); . /// ``` . #[stable(feature = "ptr_eq", since = "1.17.0")] . #[inline] . pub fn eq(a: *const T, b: *const T) -> bool { 32,372 ( 0.02%) a == b . } . . /// Hash a raw pointer. . /// . /// This can be used to hash a `&T` reference (which coerces to `*const T` implicitly) . /// by its address rather than the value it points to . /// (which is what the `Hash for &T` implementation does). . /// -- line 1364 ---------------------------------------- 215,768 ( 0.11%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/codec.rs -------------------------------------------------------------------------------- Ir -- line 70 ---------------------------------------- . /// . /// `Decodable` can still be implemented in cases where `Decodable` is required . /// by a trait bound. . pub trait RefDecodable<'tcx, D: TyDecoder<'tcx>> { . fn decode(d: &mut D) -> &'tcx Self; . } . . /// Encode the given value or a previously cached shorthand. 1,116 ( 0.00%) pub fn encode_with_shorthand<'tcx, E, T, M>( . encoder: &mut E, . value: &T, . cache: M, . ) -> Result<(), E::Error> . where . E: TyEncoder<'tcx>, . M: for<'b> Fn(&'b mut E) -> &'b mut FxHashMap, . T: EncodableWithShorthand<'tcx, E>, -- line 86 ---------------------------------------- -- line 90 ---------------------------------------- . let existing_shorthand = cache(encoder).get(value).copied(); . if let Some(shorthand) = existing_shorthand { . return encoder.emit_usize(shorthand); . } . . let variant = value.variant(); . . let start = encoder.position(); 159 ( 0.00%) variant.encode(encoder)?; 106 ( 0.00%) let len = encoder.position() - start; . . // The shorthand encoding uses the same usize as the . // discriminant, with an offset so they can't conflict. . let discriminant = intrinsics::discriminant_value(variant); . assert!(SHORTHAND_OFFSET > discriminant as usize); . 106 ( 0.00%) let shorthand = start + SHORTHAND_OFFSET; . . // Get the number of bits that leb128 could fit . // in the same space as the fully encoded type. 106 ( 0.00%) let leb128_bits = len * 7; . . // Check that the shorthand is a not longer than the . // full encoding itself, i.e., it's an obvious win. 371 ( 0.00%) if leb128_bits >= 64 || (shorthand as u64) < (1 << leb128_bits) { . cache(encoder).insert(*value, shorthand); . } . . Ok(()) 820 ( 0.00%) } . . impl<'tcx, E: TyEncoder<'tcx>> Encodable for Ty<'tcx> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { 586 ( 0.00%) encode_with_shorthand(e, self, TyEncoder::type_shorthands) . } . } . . impl<'tcx, E: TyEncoder<'tcx>> Encodable for ty::Binder<'tcx, ty::PredicateKind<'tcx>> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { . self.bound_vars().encode(e)?; 6 ( 0.00%) encode_with_shorthand(e, &self.skip_binder(), TyEncoder::predicate_shorthands) . } . } . . impl<'tcx, E: TyEncoder<'tcx>> Encodable for ty::Predicate<'tcx> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { . self.kind().encode(e) . } . } -- line 138 ---------------------------------------- -- line 141 ---------------------------------------- . fn encode(&self, e: &mut E) -> Result<(), E::Error> { . e.encode_alloc_id(self) . } . } . . macro_rules! encodable_via_deref { . ($($t:ty),+) => { . $(impl<'tcx, E: TyEncoder<'tcx>> Encodable for $t { 60 ( 0.00%) fn encode(&self, e: &mut E) -> Result<(), E::Error> { 12 ( 0.00%) (**self).encode(e) 60 ( 0.00%) } . })* . } . } . . encodable_via_deref! { . &'tcx ty::TypeckResults<'tcx>, . ty::Region<'tcx>, . &'tcx mir::Body<'tcx>, -- line 159 ---------------------------------------- -- line 176 ---------------------------------------- . where . F: FnOnce(&mut Self) -> Ty<'tcx>; . . fn with_position(&mut self, pos: usize, f: F) -> R . where . F: FnOnce(&mut Self) -> R; . . fn positioned_at_shorthand(&self) -> bool { 13,495 ( 0.01%) (self.peek_byte() & (SHORTHAND_OFFSET as u8)) != 0 . } . . fn decode_alloc_id(&mut self) -> AllocId; . } . . #[inline] . fn decode_arena_allocable<'tcx, D, T: ArenaAllocatable<'tcx> + Decodable>( . decoder: &mut D, . ) -> &'tcx T . where . D: TyDecoder<'tcx>, . { 4,694 ( 0.00%) decoder.tcx().arena.alloc(Decodable::decode(decoder)) . } . . #[inline] . fn decode_arena_allocable_slice<'tcx, D, T: ArenaAllocatable<'tcx> + Decodable>( . decoder: &mut D, . ) -> &'tcx [T] . where . D: TyDecoder<'tcx>, . { . decoder.tcx().arena.alloc_from_iter( as Decodable>::decode(decoder)) . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for Ty<'tcx> { . #[allow(rustc::usage_of_ty_tykind)] 53,796 ( 0.03%) fn decode(decoder: &mut D) -> Ty<'tcx> { . // Handle shorthands first, if we have a usize > 0x80. 13,449 ( 0.01%) if decoder.positioned_at_shorthand() { . let pos = decoder.read_usize(); 20,028 ( 0.01%) assert!(pos >= SHORTHAND_OFFSET); 30,042 ( 0.01%) let shorthand = pos - SHORTHAND_OFFSET; . 30,042 ( 0.01%) decoder.cached_ty_for_shorthand(shorthand, |decoder| { . decoder.with_position(shorthand, Ty::decode) . }) . } else { 3,435 ( 0.00%) let tcx = decoder.tcx(); 6,870 ( 0.00%) tcx.mk_ty(ty::TyKind::decode(decoder)) . } 53,796 ( 0.03%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Binder<'tcx, ty::PredicateKind<'tcx>> { 276 ( 0.00%) fn decode(decoder: &mut D) -> ty::Binder<'tcx, ty::PredicateKind<'tcx>> { . let bound_vars = Decodable::decode(decoder); . // Handle shorthands first, if we have a usize > 0x80. . ty::Binder::bind_with_vars( 46 ( 0.00%) if decoder.positioned_at_shorthand() { . let pos = decoder.read_usize(); 64 ( 0.00%) assert!(pos >= SHORTHAND_OFFSET); 32 ( 0.00%) let shorthand = pos - SHORTHAND_OFFSET; . . decoder.with_position(shorthand, ty::PredicateKind::decode) . } else { 42 ( 0.00%) ty::PredicateKind::decode(decoder) . }, . bound_vars, . ) 276 ( 0.00%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Predicate<'tcx> { . fn decode(decoder: &mut D) -> ty::Predicate<'tcx> { 138 ( 0.00%) let predicate_kind = Decodable::decode(decoder); 46 ( 0.00%) decoder.tcx().mk_predicate(predicate_kind) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for SubstsRef<'tcx> { . fn decode(decoder: &mut D) -> Self { . let len = decoder.read_usize(); 8,305 ( 0.00%) let tcx = decoder.tcx(); . tcx.mk_substs( 18,833 ( 0.01%) (0..len).map::, _>(|_| Decodable::decode(decoder)), . ) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for mir::Place<'tcx> { . fn decode(decoder: &mut D) -> Self { . let local: mir::Local = Decodable::decode(decoder); . let len = decoder.read_usize(); -- line 268 ---------------------------------------- -- line 269 ---------------------------------------- . let projection = decoder.tcx().mk_place_elems( . (0..len).map::, _>(|_| Decodable::decode(decoder)), . ); . mir::Place { local, projection } . } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Region<'tcx> { 10,626 ( 0.01%) fn decode(decoder: &mut D) -> Self { 4,554 ( 0.00%) decoder.tcx().mk_region(Decodable::decode(decoder)) 12,144 ( 0.01%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for CanonicalVarInfos<'tcx> { . fn decode(decoder: &mut D) -> Self { . let len = decoder.read_usize(); . let interned: Vec> = . (0..len).map(|_| Decodable::decode(decoder)).collect(); . decoder.tcx().intern_canonical_var_infos(interned.as_slice()) -- line 287 ---------------------------------------- -- line 308 ---------------------------------------- . } . })* . } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for ty::List> { . fn decode(decoder: &mut D) -> &'tcx Self { . let len = decoder.read_usize(); 786 ( 0.00%) decoder.tcx().mk_type_list((0..len).map::, _>(|_| Decodable::decode(decoder))) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> . for ty::List>> . { . fn decode(decoder: &mut D) -> &'tcx Self { . let len = decoder.read_usize(); 18 ( 0.00%) decoder.tcx().mk_poly_existential_predicates( 106 ( 0.00%) (0..len).map::, _>(|_| Decodable::decode(decoder)), . ) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for ty::Const<'tcx> { . fn decode(decoder: &mut D) -> &'tcx Self { 423 ( 0.00%) decoder.tcx().mk_const(Decodable::decode(decoder)) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [ty::ValTree<'tcx>] { . fn decode(decoder: &mut D) -> &'tcx Self { . decoder.tcx().arena.alloc_from_iter( . (0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::>(), . ) -- line 341 ---------------------------------------- -- line 344 ---------------------------------------- . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for Allocation { . fn decode(decoder: &mut D) -> &'tcx Self { . decoder.tcx().intern_const_alloc(Decodable::decode(decoder)) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [(ty::Predicate<'tcx>, Span)] { 630 ( 0.00%) fn decode(decoder: &mut D) -> &'tcx Self { 180 ( 0.00%) decoder.tcx().arena.alloc_from_iter( . (0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::>(), . ) 900 ( 0.00%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [thir::abstract_const::Node<'tcx>] { . fn decode(decoder: &mut D) -> &'tcx Self { . decoder.tcx().arena.alloc_from_iter( . (0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::>(), . ) . } -- line 364 ---------------------------------------- -- line 370 ---------------------------------------- . (0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::>(), . ) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for ty::List { . fn decode(decoder: &mut D) -> &'tcx Self { . let len = decoder.read_usize(); 180 ( 0.00%) decoder.tcx().mk_bound_variable_kinds( 137 ( 0.00%) (0..len).map::(|_| Decodable::decode(decoder)), . ) . } . } . . impl_decodable_via_ref! { . &'tcx ty::TypeckResults<'tcx>, . &'tcx ty::List>, . &'tcx ty::List>>, -- line 387 ---------------------------------------- -- line 394 ---------------------------------------- . &'tcx ty::AdtDef . } . . #[macro_export] . macro_rules! __impl_decoder_methods { . ($($name:ident -> $ty:ty;)*) => { . $( . #[inline] 145,569 ( 0.07%) fn $name(&mut self) -> $ty { 296,235 ( 0.14%) self.opaque.$name() 223,152 ( 0.11%) } . )* . } . } . . macro_rules! impl_arena_allocatable_decoder { . ([]$args:tt) => {}; . ([decode $(, $attrs:ident)*] . [$name:ident: $ty:ty]) => { -- line 412 ---------------------------------------- -- line 482 ---------------------------------------- . } . } . } . . macro_rules! impl_binder_encode_decode { . ($($t:ty),+ $(,)?) => { . $( . impl<'tcx, E: TyEncoder<'tcx>> Encodable for ty::Binder<'tcx, $t> { 5 ( 0.00%) fn encode(&self, e: &mut E) -> Result<(), E::Error> { 26 ( 0.00%) self.bound_vars().encode(e)?; . self.as_ref().skip_binder().encode(e) . } . } . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Binder<'tcx, $t> { 504 ( 0.00%) fn decode(decoder: &mut D) -> Self { . let bound_vars = Decodable::decode(decoder); . ty::Binder::bind_with_vars(Decodable::decode(decoder), bound_vars) 504 ( 0.00%) } . } . )* . } . } . . impl_binder_encode_decode! { . &'tcx ty::List>, . ty::FnSig<'tcx>, -- line 507 ---------------------------------------- 6,035 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/stacker-0.1.14/src/lib.rs -------------------------------------------------------------------------------- Ir -- line 42 ---------------------------------------- . /// `stack_size` bytes. . /// . /// The closure `f` is guaranteed to run on a stack with at least `red_zone` bytes, and it will be . /// run on the current stack if there's space available. . #[inline(always)] . pub fn maybe_grow R>(red_zone: usize, stack_size: usize, callback: F) -> R { . // if we can't guess the remaining stack (unsupported on some platforms) we immediately grow . // the stack and then cache the new stack size (which we do know now because we allocated it. 52,859 ( 0.03%) let enough_space = match remaining_stack() { . Some(remaining) => remaining >= red_zone, . None => false, . }; 66,459 ( 0.03%) if enough_space { 1,936 ( 0.00%) callback() . } else { . grow(stack_size, callback) . } . } . . /// Always creates a new stack for the passed closure to run on. . /// The closure will still be on the same thread as the caller of `grow`. . /// This will allocate a new stack with at least `stack_size` bytes. -- line 63 ---------------------------------------- -- line 82 ---------------------------------------- . _grow(stack_size, dyn_callback); . ret.unwrap() . } . . /// Queries the amount of remaining stack as interpreted by this library. . /// . /// This function will return the amount of stack space left which will be used . /// to determine whether a stack switch should be made or not. 44,306 ( 0.02%) pub fn remaining_stack() -> Option { . let current_ptr = current_stack_ptr(); 44,306 ( 0.02%) get_stack_limit().map(|limit| current_ptr - limit) 88,612 ( 0.04%) } . . psm_stack_information! ( . yes { . fn current_stack_ptr() -> usize { 44,306 ( 0.02%) psm::stack_pointer() as usize . } . } . no { . #[inline(always)] . fn current_stack_ptr() -> usize { . unsafe { . let mut x = std::mem::MaybeUninit::::uninit(); . // Unlikely to be ever exercised. As a fallback we execute a volatile read to a -- line 106 ---------------------------------------- -- line 111 ---------------------------------------- . x.as_ptr() as usize . } . } . } . ); . . thread_local! { . static STACK_LIMIT: Cell> = Cell::new(unsafe { 1 ( 0.00%) guess_os_stack_limit() . }) . } . . #[inline(always)] . fn get_stack_limit() -> Option { . STACK_LIMIT.with(|s| s.get()) . } . -- line 127 ---------------------------------------- -- line 403 ---------------------------------------- . VirtualQuery( . psm::stack_pointer() as *const _, . mi.as_mut_ptr(), . std::mem::size_of::() as SIZE_T, . ); . Some(mi.assume_init().AllocationBase as usize + get_thread_stack_guarantee() + 0x1000) . } . } else if #[cfg(any(target_os = "linux", target_os="solaris", target_os = "netbsd"))] { 2 ( 0.00%) unsafe fn guess_os_stack_limit() -> Option { . let mut attr = std::mem::MaybeUninit::::uninit(); 4 ( 0.00%) assert_eq!(libc::pthread_attr_init(attr.as_mut_ptr()), 0); 7 ( 0.00%) assert_eq!(libc::pthread_getattr_np(libc::pthread_self(), . attr.as_mut_ptr()), 0); 1 ( 0.00%) let mut stackaddr = std::ptr::null_mut(); 4 ( 0.00%) let mut stacksize = 0; 4 ( 0.00%) assert_eq!(libc::pthread_attr_getstack( . attr.as_ptr(), &mut stackaddr, &mut stacksize . ), 0); 4 ( 0.00%) assert_eq!(libc::pthread_attr_destroy(attr.as_mut_ptr()), 0); 1 ( 0.00%) Some(stackaddr as usize) 3 ( 0.00%) } . } else if #[cfg(any(target_os = "freebsd", target_os = "dragonfly"))] { . unsafe fn guess_os_stack_limit() -> Option { . let mut attr = std::mem::MaybeUninit::::uninit(); . assert_eq!(libc::pthread_attr_init(attr.as_mut_ptr()), 0); . assert_eq!(libc::pthread_attr_get_np(libc::pthread_self(), attr.as_mut_ptr()), 0); . let mut stackaddr = std::ptr::null_mut(); . let mut stacksize = 0; . assert_eq!(libc::pthread_attr_getstack( -- line 431 ---------------------------------------- 24,192 ( 0.01%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs -------------------------------------------------------------------------------- Ir -- line 32 ---------------------------------------- . pub mutbl: hir::Mutability, . } . . #[derive(Clone, PartialEq, PartialOrd, Eq, Ord, Hash, TyEncodable, TyDecodable, Copy)] . #[derive(HashStable)] . /// A "free" region `fr` can be interpreted as "some region . /// at least as big as the scope `fr.scope`". . pub struct FreeRegion { 2,560 ( 0.00%) pub scope: DefId, 4,487 ( 0.00%) pub bound_region: BoundRegionKind, . } . 20,732 ( 0.01%) #[derive(Clone, PartialEq, PartialOrd, Eq, Ord, Hash, TyEncodable, TyDecodable, Copy)] . #[derive(HashStable)] . pub enum BoundRegionKind { . /// An anonymous region parameter for a given fn (&T) 1,480 ( 0.00%) BrAnon(u32), . . /// Named region parameters for functions (a in &'a T) . /// . /// The `DefId` is needed to distinguish free regions in . /// the event of shadowing. 36 ( 0.00%) BrNamed(DefId, Symbol), . . /// Anonymous region for the implicit env pointer parameter . /// to a closure . BrEnv, . } . 66 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, Hash, TyEncodable, TyDecodable, Debug, PartialOrd, Ord)] . #[derive(HashStable)] . pub struct BoundRegion { 3,602 ( 0.00%) pub var: BoundVar, 2,756 ( 0.00%) pub kind: BoundRegionKind, . } . . impl BoundRegionKind { . pub fn is_named(&self) -> bool { . match *self { . BoundRegionKind::BrNamed(_, name) => name != kw::UnderscoreLifetime, . _ => false, . } . } . } . . /// Defines the kinds of types. . /// . /// N.B., if you change this, you'll probably want to change the corresponding . /// AST structure in `rustc_ast/src/ast.rs` as well. 520,884 ( 0.25%) #[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable, Debug)] . #[derive(HashStable)] . #[rustc_diagnostic_item = "TyKind"] . pub enum TyKind<'tcx> { . /// The primitive boolean type. Written as `bool`. . Bool, . . /// The primitive character type; holds a Unicode scalar value . /// (a non-surrogate code point). Written as `char`. -- line 89 ---------------------------------------- -- line 99 ---------------------------------------- . Float(ty::FloatTy), . . /// Algebraic data types (ADT). For example: structures, enumerations and unions. . /// . /// InternalSubsts here, possibly against intuition, *may* contain `Param`s. . /// That is, even after substitution it is possible that there are type . /// variables. This happens when the `Adt` corresponds to an ADT . /// definition and not a concrete use of it. 44,333 ( 0.02%) Adt(&'tcx AdtDef, SubstsRef<'tcx>), . . /// An unsized FFI type that is opaque to Rust. Written as `extern type T`. . Foreign(DefId), . . /// The pointee of a string slice. Written as `str`. . Str, . . /// An array with the given length. Written as `[T; n]`. 2,339 ( 0.00%) Array(Ty<'tcx>, &'tcx ty::Const<'tcx>), . . /// The pointee of an array slice. Written as `[T]`. . Slice(Ty<'tcx>), . . /// A raw pointer. Written as `*mut T` or `*const T` . RawPtr(TypeAndMut<'tcx>), . . /// A reference; a pointer with an associated lifetime. Written as . /// `&'a mut T` or `&'a T`. 48,626 ( 0.02%) Ref(Region<'tcx>, Ty<'tcx>, hir::Mutability), . . /// The anonymous type of a function declaration/definition. Each . /// function has a unique type, which is output (for a function . /// named `foo` returning an `i32`) as `fn() -> i32 {foo}`. . /// . /// For example the type of `bar` here: . /// . /// ```rust -- line 134 ---------------------------------------- -- line 143 ---------------------------------------- . /// . /// ```rust . /// fn foo() -> i32 { 1 } . /// let bar: fn() -> i32 = foo; . /// ``` . FnPtr(PolyFnSig<'tcx>), . . /// A trait object. Written as `dyn for<'b> Trait<'b, Assoc = u32> + Send + 'a`. 3,212 ( 0.00%) Dynamic(&'tcx List>>, ty::Region<'tcx>), . . /// The anonymous type of a closure. Used to represent the type of . /// `|a| a`. . Closure(DefId, SubstsRef<'tcx>), . . /// The anonymous type of a generator. Used to represent the type of . /// `|a| yield a`. . Generator(DefId, SubstsRef<'tcx>, hir::Movability), -- line 159 ---------------------------------------- -- line 180 ---------------------------------------- . /// The substitutions are for the generics of the function in question. . /// After typeck, the concrete type can be found in the `types` map. . Opaque(DefId, SubstsRef<'tcx>), . . /// A type parameter; for example, `T` in `fn f(x: T) {}`. . Param(ParamTy), . . /// Bound type variable, used only when preparing a trait query. 30 ( 0.00%) Bound(ty::DebruijnIndex, BoundTy), . . /// A placeholder type - universally quantified higher-ranked type. . Placeholder(ty::PlaceholderType), . . /// A type variable used during type checking. . Infer(InferTy), . . /// A placeholder for a type which could not be computed; this is -- line 196 ---------------------------------------- -- line 760 ---------------------------------------- . } . . /// Returns the type of this inline const. . pub fn ty(self) -> Ty<'tcx> { . self.split().ty.expect_ty() . } . } . 3,182 ( 0.00%) #[derive(Debug, Copy, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, TyEncodable, TyDecodable)] 2,285 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub enum ExistentialPredicate<'tcx> { . /// E.g., `Iterator`. . Trait(ExistentialTraitRef<'tcx>), . /// E.g., `Iterator::Item = T`. . Projection(ExistentialProjection<'tcx>), . /// E.g., `Send`. 18 ( 0.00%) AutoTrait(DefId), . } . . impl<'tcx> ExistentialPredicate<'tcx> { . /// Compares via an ordering that will not change if modules are reordered or other changes are . /// made to the tree. In particular, this ordering is preserved across incremental compilations. 70 ( 0.00%) pub fn stable_cmp(&self, tcx: TyCtxt<'tcx>, other: &Self) -> Ordering { . use self::ExistentialPredicate::*; 80 ( 0.00%) match (*self, *other) { . (Trait(_), Trait(_)) => Ordering::Equal, . (Projection(ref a), Projection(ref b)) => { . tcx.def_path_hash(a.item_def_id).cmp(&tcx.def_path_hash(b.item_def_id)) . } . (AutoTrait(ref a), AutoTrait(ref b)) => { . tcx.def_path_hash(*a).cmp(&tcx.def_path_hash(*b)) . } . (Trait(_), _) => Ordering::Less, . (Projection(_), Trait(_)) => Ordering::Greater, . (Projection(_), _) => Ordering::Less, . (AutoTrait(_), _) => Ordering::Greater, . } 84 ( 0.00%) } . } . . impl<'tcx> Binder<'tcx, ExistentialPredicate<'tcx>> { 288 ( 0.00%) pub fn with_self_ty(&self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> ty::Predicate<'tcx> { . use crate::ty::ToPredicate; 160 ( 0.00%) match self.skip_binder() { . ExistentialPredicate::Trait(tr) => { . self.rebind(tr).with_self_ty(tcx, self_ty).without_const().to_predicate(tcx) . } . ExistentialPredicate::Projection(p) => { . self.rebind(p.with_self_ty(tcx, self_ty)).to_predicate(tcx) . } . ExistentialPredicate::AutoTrait(did) => { . let trait_ref = self.rebind(ty::TraitRef { . def_id: did, . substs: tcx.mk_substs_trait(self_ty, &[]), . }); . trait_ref.without_const().to_predicate(tcx) . } . } 256 ( 0.00%) } . } . . impl<'tcx> List>> { . /// Returns the "principal `DefId`" of this set of existential predicates. . /// . /// A Rust trait object type consists (in addition to a lifetime bound) . /// of a set of trait bounds, which are separated into any number . /// of auto-trait bounds, and at most one non-auto-trait bound. The -- line 826 ---------------------------------------- -- line 840 ---------------------------------------- . /// . /// It is also possible to have a "trivial" trait object that . /// consists only of auto traits, with no principal - for example, . /// `dyn Send + Sync`. In that case, the set of auto-trait bounds . /// is `{Send, Sync}`, while there is no principal. These trait objects . /// have a "trivial" vtable consisting of just the size, alignment, . /// and destructor. . pub fn principal(&self) -> Option>> { 102 ( 0.00%) self[0] 102 ( 0.00%) .map_bound(|this| match this { . ExistentialPredicate::Trait(tr) => Some(tr), . _ => None, . }) . .transpose() . } . 32 ( 0.00%) pub fn principal_def_id(&self) -> Option { . self.principal().map(|trait_ref| trait_ref.skip_binder().def_id) 64 ( 0.00%) } . . #[inline] . pub fn projection_bounds<'a>( . &'a self, . ) -> impl Iterator>> + 'a { . self.iter().filter_map(|predicate| { . predicate . .map_bound(|pred| match pred { -- line 866 ---------------------------------------- -- line 886 ---------------------------------------- . /// T: Foo . /// . /// This would be represented by a trait-reference where the `DefId` is the . /// `DefId` for the trait `Foo` and the substs define `T` as parameter 0, . /// and `U` as parameter 1. . /// . /// Trait references also appear in object types like `Foo`, but in . /// that case the `Self` parameter is absent from the substitutions. 17,640 ( 0.01%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] 12,772 ( 0.01%) #[derive(HashStable, TypeFoldable)] . pub struct TraitRef<'tcx> { . pub def_id: DefId, 9,748 ( 0.00%) pub substs: SubstsRef<'tcx>, . } . . impl<'tcx> TraitRef<'tcx> { 78 ( 0.00%) pub fn new(def_id: DefId, substs: SubstsRef<'tcx>) -> TraitRef<'tcx> { . TraitRef { def_id, substs } 312 ( 0.00%) } . . /// Returns a `TraitRef` of the form `P0: Foo` where `Pi` . /// are the parameters defined on trait. 441 ( 0.00%) pub fn identity(tcx: TyCtxt<'tcx>, def_id: DefId) -> Binder<'tcx, TraitRef<'tcx>> { 196 ( 0.00%) ty::Binder::dummy(TraitRef { . def_id, 294 ( 0.00%) substs: InternalSubsts::identity_for_item(tcx, def_id), . }) 392 ( 0.00%) } . . #[inline] . pub fn self_ty(&self) -> Ty<'tcx> { . self.substs.type_at(0) . } . 8 ( 0.00%) pub fn from_method( . tcx: TyCtxt<'tcx>, . trait_id: DefId, . substs: SubstsRef<'tcx>, . ) -> ty::TraitRef<'tcx> { . let defs = tcx.generics_of(trait_id); . 1 ( 0.00%) ty::TraitRef { def_id: trait_id, substs: tcx.intern_substs(&substs[..defs.params.len()]) } 11 ( 0.00%) } . } . . pub type PolyTraitRef<'tcx> = Binder<'tcx, TraitRef<'tcx>>; . . impl<'tcx> PolyTraitRef<'tcx> { . pub fn self_ty(&self) -> Binder<'tcx, Ty<'tcx>> { . self.map_bound_ref(|tr| tr.self_ty()) . } . . pub fn def_id(&self) -> DefId { 150 ( 0.00%) self.skip_binder().def_id 50 ( 0.00%) } . 12 ( 0.00%) pub fn to_poly_trait_predicate(&self) -> ty::PolyTraitPredicate<'tcx> { 24 ( 0.00%) self.map_bound(|trait_ref| ty::TraitPredicate { . trait_ref, . constness: ty::BoundConstness::NotConst, . polarity: ty::ImplPolarity::Positive, . }) 12 ( 0.00%) } . } . . /// An existential reference to a trait, where `Self` is erased. . /// For example, the trait object `Trait<'a, 'b, X, Y>` is: . /// . /// exists T. T: Trait<'a, 'b, X, Y> . /// . /// The substitutions don't include the erased `Self`, only trait . /// type and lifetime parameters (`[X, Y]` and `['a, 'b]` above). 76 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] 1,204 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct ExistentialTraitRef<'tcx> { 252 ( 0.00%) pub def_id: DefId, 1,596 ( 0.00%) pub substs: SubstsRef<'tcx>, . } . . impl<'tcx> ExistentialTraitRef<'tcx> { 64 ( 0.00%) pub fn erase_self_ty( . tcx: TyCtxt<'tcx>, . trait_ref: ty::TraitRef<'tcx>, . ) -> ty::ExistentialTraitRef<'tcx> { . // Assert there is a Self. . trait_ref.substs.type_at(0); . . ty::ExistentialTraitRef { . def_id: trait_ref.def_id, . substs: tcx.intern_substs(&trait_ref.substs[1..]), . } 64 ( 0.00%) } . . /// Object types don't have a self type specified. Therefore, when . /// we convert the principal trait-ref into a normal trait-ref, . /// you must give *some* self type. A common choice is `mk_err()` . /// or some placeholder type. . pub fn with_self_ty(&self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> ty::TraitRef<'tcx> { . // otherwise the escaping vars would be captured by the binder . // debug_assert!(!self_ty.has_escaping_bound_vars()); -- line 985 ---------------------------------------- -- line 999 ---------------------------------------- . /// we convert the principal trait-ref into a normal trait-ref, . /// you must give *some* self type. A common choice is `mk_err()` . /// or some placeholder type. . pub fn with_self_ty(&self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> ty::PolyTraitRef<'tcx> { . self.map_bound(|trait_ref| trait_ref.with_self_ty(tcx, self_ty)) . } . } . 2,749 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] . #[derive(HashStable)] . pub enum BoundVariableKind { . Ty(BoundTyKind), . Region(BoundRegionKind), . Const, . } . . /// Binder is a binder for higher-ranked lifetimes or types. It is part of the -- line 1015 ---------------------------------------- -- line 1016 ---------------------------------------- . /// compiler's representation for things like `for<'a> Fn(&'a isize)` . /// (which would be represented by the type `PolyTraitRef == . /// Binder<'tcx, TraitRef>`). Note that when we instantiate, . /// erase, or otherwise "discharge" these bound vars, we change the . /// type from `Binder<'tcx, T>` to just `T` (see . /// e.g., `liberate_late_bound_regions`). . /// . /// `Decodable` and `Encodable` are implemented for `Binder` using the `impl_binder_encode_decode!` macro. 3,087 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)] 11,744 ( 0.01%) pub struct Binder<'tcx, T>(T, &'tcx List); . . impl<'tcx, T> Binder<'tcx, T> . where . T: TypeFoldable<'tcx>, . { . /// Wraps `value` in a binder, asserting that `value` does not . /// contain any bound vars that would be bound by the . /// binder. This is commonly used to 'inject' a value T into a . /// different binding level. 1,115 ( 0.00%) pub fn dummy(value: T) -> Binder<'tcx, T> { 4,339 ( 0.00%) assert!(!value.has_escaping_bound_vars()); 9,271 ( 0.00%) Binder(value, ty::List::empty()) 1,099 ( 0.00%) } . . pub fn bind_with_vars(value: T, vars: &'tcx List) -> Binder<'tcx, T> { . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(vars); . value.visit_with(&mut validator); . } 1,313 ( 0.00%) Binder(value, vars) . } . } . . impl<'tcx, T> Binder<'tcx, T> { . /// Skips the binder and returns the "bound" value. This is a . /// risky thing to do because it's easy to get confused about . /// De Bruijn indices and the like. It is usually better to . /// discharge the binder using `no_bound_vars` or -- line 1053 ---------------------------------------- -- line 1059 ---------------------------------------- . /// accounting. . /// . /// Some examples where `skip_binder` is reasonable: . /// . /// - extracting the `DefId` from a PolyTraitRef; . /// - comparing the self type of a PolyTraitRef to see if it is equal to . /// a type parameter `X`, since the type `X` does not reference any regions . pub fn skip_binder(self) -> T { 30,994 ( 0.02%) self.0 . } . . pub fn bound_vars(&self) -> &'tcx List { 103 ( 0.00%) self.1 . } . . pub fn as_ref(&self) -> Binder<'tcx, &T> { 54 ( 0.00%) Binder(&self.0, self.1) . } . . pub fn map_bound_ref_unchecked(&self, f: F) -> Binder<'tcx, U> . where . F: FnOnce(&T) -> U, . { . let value = f(&self.0); . Binder(value, self.1) -- line 1083 ---------------------------------------- -- line 1085 ---------------------------------------- . . pub fn map_bound_ref>(&self, f: F) -> Binder<'tcx, U> . where . F: FnOnce(&T) -> U, . { . self.as_ref().map_bound(f) . } . 72 ( 0.00%) pub fn map_bound>(self, f: F) -> Binder<'tcx, U> . where . F: FnOnce(T) -> U, . { 699 ( 0.00%) let value = f(self.0); . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(self.1); . value.visit_with(&mut validator); . } 7,009 ( 0.00%) Binder(value, self.1) 72 ( 0.00%) } . . pub fn try_map_bound, E>(self, f: F) -> Result, E> . where . F: FnOnce(T) -> Result, . { . let value = f(self.0)?; . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(self.1); . value.visit_with(&mut validator); . } 332 ( 0.00%) Ok(Binder(value, self.1)) . } . . /// Wraps a `value` in a binder, using the same bound variables as the . /// current `Binder`. This should not be used if the new value *changes* . /// the bound variables. Note: the (old or new) value itself does not . /// necessarily need to *name* all the bound variables. . /// . /// This currently doesn't do anything different than `bind`, because we -- line 1122 ---------------------------------------- -- line 1126 ---------------------------------------- . pub fn rebind(&self, value: U) -> Binder<'tcx, U> . where . U: TypeFoldable<'tcx>, . { . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(self.bound_vars()); . value.visit_with(&mut validator); . } 420 ( 0.00%) Binder(value, self.1) . } . . /// Unwraps and returns the value within, but only if it contains . /// no bound vars at all. (In other words, if this binder -- . /// and indeed any enclosing binder -- doesn't bind anything at . /// all.) Otherwise, returns `None`. . /// . /// (One could imagine having a method that just unwraps a single -- line 1142 ---------------------------------------- -- line 1143 ---------------------------------------- . /// binder, but permits late-bound vars bound by enclosing . /// binders, but that would require adjusting the debruijn . /// indices, and given the shallow binding structure we often use, . /// would not be that useful.) . pub fn no_bound_vars(self) -> Option . where . T: TypeFoldable<'tcx>, . { 5,311 ( 0.00%) if self.0.has_escaping_bound_vars() { None } else { Some(self.skip_binder()) } 60 ( 0.00%) } . . /// Splits the contents into two things that share the same binder . /// level as the original, returning two distinct binders. . /// . /// `f` should consider bound regions at depth 1 to be free, and . /// anything it produces with bound regions at depth 1 will be . /// bound in the resulting return values. . pub fn split(self, f: F) -> (Binder<'tcx, U>, Binder<'tcx, V>) -- line 1160 ---------------------------------------- -- line 1170 ---------------------------------------- . pub fn transpose(self) -> Option> { . let bound_vars = self.1; . self.0.map(|v| Binder(v, bound_vars)) . } . } . . /// Represents the projection of an associated type. In explicit UFCS . /// form this would be written `>::N`. 9 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] 416 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct ProjectionTy<'tcx> { . /// The parameters of the associated item. 114 ( 0.00%) pub substs: SubstsRef<'tcx>, . . /// The `DefId` of the `TraitItem` for the associated type `N`. . /// . /// Note that this is not the `DefId` of the `TraitRef` containing this . /// associated type, which is in `tcx.associated_item(item_def_id).container`. 130 ( 0.00%) pub item_def_id: DefId, . } . . impl<'tcx> ProjectionTy<'tcx> { 77 ( 0.00%) pub fn trait_def_id(&self, tcx: TyCtxt<'tcx>) -> DefId { 22 ( 0.00%) tcx.associated_item(self.item_def_id).container.id() 88 ( 0.00%) } . . /// Extracts the underlying trait reference and own substs from this projection. . /// For example, if this is a projection of `::Item<'a>`, . /// then this function would return a `T: Iterator` trait reference and `['a]` as the own substs 35 ( 0.00%) pub fn trait_ref_and_own_substs( . &self, . tcx: TyCtxt<'tcx>, . ) -> (ty::TraitRef<'tcx>, &'tcx [ty::GenericArg<'tcx>]) { 15 ( 0.00%) let def_id = tcx.associated_item(self.item_def_id).container.id(); . let trait_generics = tcx.generics_of(def_id); 25 ( 0.00%) ( . ty::TraitRef { def_id, substs: self.substs.truncate_to(tcx, trait_generics) }, . &self.substs[trait_generics.count()..], . ) 45 ( 0.00%) } . . /// Extracts the underlying trait reference from this projection. . /// For example, if this is a projection of `::Item`, . /// then this function would return a `T: Iterator` trait reference. . /// . /// WARNING: This will drop the substs for generic associated types . /// consider calling [Self::trait_ref_and_own_substs] to get those . /// as well. 99 ( 0.00%) pub fn trait_ref(&self, tcx: TyCtxt<'tcx>) -> ty::TraitRef<'tcx> { 11 ( 0.00%) let def_id = self.trait_def_id(tcx); 11 ( 0.00%) ty::TraitRef { def_id, substs: self.substs.truncate_to(tcx, tcx.generics_of(def_id)) } 121 ( 0.00%) } . 34 ( 0.00%) pub fn self_ty(&self) -> Ty<'tcx> { 102 ( 0.00%) self.substs.type_at(0) 68 ( 0.00%) } . } . . #[derive(Copy, Clone, Debug, TypeFoldable)] . pub struct GenSig<'tcx> { . pub resume_ty: Ty<'tcx>, . pub yield_ty: Ty<'tcx>, . pub return_ty: Ty<'tcx>, . } -- line 1233 ---------------------------------------- -- line 1235 ---------------------------------------- . pub type PolyGenSig<'tcx> = Binder<'tcx, GenSig<'tcx>>; . . /// Signature of a function type, which we have arbitrarily . /// decided to use to refer to the input/output types. . /// . /// - `inputs`: is the list of arguments and their modes. . /// - `output`: is the return type. . /// - `c_variadic`: indicates whether this is a C-variadic function. 1,981 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] 714 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct FnSig<'tcx> { 116 ( 0.00%) pub inputs_and_output: &'tcx List>, 1,171 ( 0.00%) pub c_variadic: bool, 165 ( 0.00%) pub unsafety: hir::Unsafety, 1,659 ( 0.00%) pub abi: abi::Abi, . } . . impl<'tcx> FnSig<'tcx> { 855 ( 0.00%) pub fn inputs(&self) -> &'tcx [Ty<'tcx>] { 4,854 ( 0.00%) &self.inputs_and_output[..self.inputs_and_output.len() - 1] 1,710 ( 0.00%) } . 499 ( 0.00%) pub fn output(&self) -> Ty<'tcx> { 4,015 ( 0.00%) self.inputs_and_output[self.inputs_and_output.len() - 1] 998 ( 0.00%) } . . // Creates a minimal `FnSig` to be used when encountering a `TyKind::Error` in a fallible . // method. . fn fake() -> FnSig<'tcx> { . FnSig { . inputs_and_output: List::empty(), . c_variadic: false, . unsafety: hir::Unsafety::Normal, -- line 1267 ---------------------------------------- -- line 1270 ---------------------------------------- . } . } . . pub type PolyFnSig<'tcx> = Binder<'tcx, FnSig<'tcx>>; . . impl<'tcx> PolyFnSig<'tcx> { . #[inline] . pub fn inputs(&self) -> Binder<'tcx, &'tcx [Ty<'tcx>]> { 195 ( 0.00%) self.map_bound_ref_unchecked(|fn_sig| fn_sig.inputs()) . } . #[inline] . pub fn input(&self, index: usize) -> ty::Binder<'tcx, Ty<'tcx>> { 683 ( 0.00%) self.map_bound_ref(|fn_sig| fn_sig.inputs()[index]) . } . pub fn inputs_and_output(&self) -> ty::Binder<'tcx, &'tcx List>> { . self.map_bound_ref(|fn_sig| fn_sig.inputs_and_output) 21 ( 0.00%) } . #[inline] . pub fn output(&self) -> ty::Binder<'tcx, Ty<'tcx>> { 322 ( 0.00%) self.map_bound_ref(|fn_sig| fn_sig.output()) . } . pub fn c_variadic(&self) -> bool { 42 ( 0.00%) self.skip_binder().c_variadic 21 ( 0.00%) } . pub fn unsafety(&self) -> hir::Unsafety { 120 ( 0.00%) self.skip_binder().unsafety 60 ( 0.00%) } . pub fn abi(&self) -> abi::Abi { 224 ( 0.00%) self.skip_binder().abi 56 ( 0.00%) } . } . . pub type CanonicalPolyFnSig<'tcx> = Canonical<'tcx, Binder<'tcx, FnSig<'tcx>>>; . 4 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] . #[derive(HashStable)] . pub struct ParamTy { . pub index: u32, . pub name: Symbol, . } . . impl<'tcx> ParamTy { 2 ( 0.00%) pub fn new(index: u32, name: Symbol) -> ParamTy { . ParamTy { index, name } 1 ( 0.00%) } . . pub fn for_def(def: &ty::GenericParamDef) -> ParamTy { . ParamTy::new(def.index, def.name) . } . . #[inline] . pub fn to_ty(self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { . tcx.mk_ty_param(self.index, self.name) . } . } . . #[derive(Copy, Clone, Hash, TyEncodable, TyDecodable, Eq, PartialEq, Ord, PartialOrd)] . #[derive(HashStable)] . pub struct ParamConst { 72 ( 0.00%) pub index: u32, 72 ( 0.00%) pub name: Symbol, . } . . impl ParamConst { . pub fn new(index: u32, name: Symbol) -> ParamConst { . ParamConst { index, name } . } . . pub fn for_def(def: &ty::GenericParamDef) -> ParamConst { -- line 1338 ---------------------------------------- -- line 1440 ---------------------------------------- . /// the inference variable is supposed to satisfy the relation . /// *for every value of the placeholder region*. To ensure that doesn't . /// happen, you can use `leak_check`. This is more clearly explained . /// by the [rustc dev guide]. . /// . /// [1]: https://smallcultfollowing.com/babysteps/blog/2013/10/29/intermingled-parameter-lists/ . /// [2]: https://smallcultfollowing.com/babysteps/blog/2013/11/04/intermingled-parameter-lists/ . /// [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/traits/hrtb.html 210,712 ( 0.10%) #[derive(Clone, PartialEq, Eq, Hash, Copy, TyEncodable, TyDecodable, PartialOrd, Ord)] 22 ( 0.00%) pub enum RegionKind { . /// Region bound in a type or fn declaration which will be . /// substituted 'early' -- that is, at the same time when type . /// parameters are substituted. . ReEarlyBound(EarlyBoundRegion), . . /// Region bound in a function scope, which will be substituted when the . /// function is called. 5,320 ( 0.00%) ReLateBound(ty::DebruijnIndex, BoundRegion), . . /// When checking a function body, the types of all arguments and so forth . /// that refer to bound region parameters are modified to refer to free . /// region parameters. . ReFree(FreeRegion), . . /// Static data that has an "infinite" lifetime. Top in the region lattice. . ReStatic, -- line 1465 ---------------------------------------- -- line 1478 ---------------------------------------- . /// regions visible from `U`, but not less than regions not visible . /// from `U`. . ReEmpty(ty::UniverseIndex), . . /// Erased region, used by trait selection, in MIR and during codegen. . ReErased, . } . 8,844 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, Hash, TyEncodable, TyDecodable, Debug, PartialOrd, Ord)] . pub struct EarlyBoundRegion { . pub def_id: DefId, 3,642 ( 0.00%) pub index: u32, 2,573 ( 0.00%) pub name: Symbol, . } . . /// A **`const`** **v**ariable **ID**. . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] . pub struct ConstVid<'tcx> { 44 ( 0.00%) pub index: u32, . pub phantom: PhantomData<&'tcx ()>, . } . . rustc_index::newtype_index! { . /// A **region** (lifetime) **v**ariable **ID**. . pub struct RegionVid { . DEBUG_FORMAT = custom, . } -- line 1504 ---------------------------------------- -- line 1513 ---------------------------------------- . rustc_index::newtype_index! { . pub struct BoundVar { .. } . } . . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] . #[derive(HashStable)] . pub struct BoundTy { . pub var: BoundVar, 30 ( 0.00%) pub kind: BoundTyKind, . } . 534 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] . #[derive(HashStable)] . pub enum BoundTyKind { . Anon, . Param(Symbol), . } . . impl From for BoundTy { . fn from(var: BoundVar) -> Self { -- line 1532 ---------------------------------------- -- line 1616 ---------------------------------------- . RegionKind::RePlaceholder(placeholder) => placeholder.name.is_named(), . RegionKind::ReEmpty(_) => false, . RegionKind::ReErased => false, . } . } . . #[inline] . pub fn is_late_bound(&self) -> bool { 252 ( 0.00%) matches!(*self, ty::ReLateBound(..)) . } . . #[inline] . pub fn is_placeholder(&self) -> bool { . matches!(*self, ty::RePlaceholder(..)) . } . . #[inline] . pub fn bound_at_or_above_binder(&self, index: ty::DebruijnIndex) -> bool { 6,756 ( 0.00%) match *self { . ty::ReLateBound(debruijn, _) => debruijn >= index, . _ => false, . } . } . . pub fn type_flags(&self) -> TypeFlags { . let mut flags = TypeFlags::empty(); . 15,093 ( 0.01%) match *self { . ty::ReVar(..) => { . flags = flags | TypeFlags::HAS_FREE_REGIONS; . flags = flags | TypeFlags::HAS_FREE_LOCAL_REGIONS; . flags = flags | TypeFlags::HAS_RE_INFER; . } . ty::RePlaceholder(..) => { . flags = flags | TypeFlags::HAS_FREE_REGIONS; . flags = flags | TypeFlags::HAS_FREE_LOCAL_REGIONS; -- line 1651 ---------------------------------------- -- line 1669 ---------------------------------------- . ty::ReErased => { . flags = flags | TypeFlags::HAS_RE_ERASED; . } . } . . debug!("type_flags({:?}) = {:?}", self, flags); . . flags 358 ( 0.00%) } . . /// Given an early-bound or free region, returns the `DefId` where it was bound. . /// For example, consider the regions in this snippet of code: . /// . /// ``` . /// impl<'a> Foo { . /// ^^ -- early bound, declared on an impl . /// -- line 1685 ---------------------------------------- -- line 1713 ---------------------------------------- . . #[inline(always)] . pub fn flags(&self) -> TypeFlags { . self.flags . } . . #[inline] . pub fn is_unit(&self) -> bool { 84 ( 0.00%) match self.kind() { 6 ( 0.00%) Tuple(ref tys) => tys.is_empty(), . _ => false, . } . } . . #[inline] . pub fn is_never(&self) -> bool { 1,275 ( 0.00%) matches!(self.kind(), Never) . } . . #[inline] . pub fn is_primitive(&self) -> bool { . self.kind().is_primitive() . } . . #[inline] -- line 1737 ---------------------------------------- -- line 1741 ---------------------------------------- . . #[inline] . pub fn is_ref(&self) -> bool { . matches!(self.kind(), Ref(..)) . } . . #[inline] . pub fn is_ty_var(&self) -> bool { 1,795 ( 0.00%) matches!(self.kind(), Infer(TyVar(_))) . } . . #[inline] . pub fn ty_vid(&self) -> Option { 858 ( 0.00%) match self.kind() { 91 ( 0.00%) &Infer(TyVar(vid)) => Some(vid), . _ => None, . } . } . . #[inline] . pub fn is_ty_infer(&self) -> bool { . matches!(self.kind(), Infer(_)) . } -- line 1763 ---------------------------------------- -- line 1802 ---------------------------------------- . #[inline] . pub fn is_simd(&self) -> bool { . match self.kind() { . Adt(def, _) => def.repr.simd(), . _ => false, . } . } . 32 ( 0.00%) pub fn sequence_element_type(&self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { 64 ( 0.00%) match self.kind() { . Array(ty, _) | Slice(ty) => ty, . Str => tcx.mk_mach_uint(ty::UintTy::U8), . _ => bug!("`sequence_element_type` called on non-sequence value: {}", self), . } 32 ( 0.00%) } . . pub fn simd_size_and_type(&self, tcx: TyCtxt<'tcx>) -> (u64, Ty<'tcx>) { . match self.kind() { . Adt(def, substs) => { . assert!(def.repr.simd(), "`simd_size_and_type` called on non-SIMD type"); . let variant = def.non_enum_variant(); . let f0_ty = variant.fields[0].ty(tcx, substs); . -- line 1824 ---------------------------------------- -- line 1861 ---------------------------------------- . match self.kind() { . Ref(_, _, mutability) => Some(*mutability), . _ => None, . } . } . . #[inline] . pub fn is_unsafe_ptr(&self) -> bool { 132 ( 0.00%) matches!(self.kind(), RawPtr(_)) . } . . /// Tests if this is any kind of primitive pointer type (reference, raw pointer, fn pointer). . #[inline] . pub fn is_any_ptr(&self) -> bool { . self.is_region_ptr() || self.is_unsafe_ptr() || self.is_fn_ptr() . } . . #[inline] . pub fn is_box(&self) -> bool { 1,528 ( 0.00%) match self.kind() { 317 ( 0.00%) Adt(def, _) => def.is_box(), . _ => false, . } . } . . /// Panics if called on any type other than `Box`. . pub fn boxed_ty(&self) -> Ty<'tcx> { . match self.kind() { . Adt(def, substs) if def.is_box() => substs.type_at(0), -- line 1889 ---------------------------------------- -- line 1891 ---------------------------------------- . } . } . . /// A scalar type is one that denotes an atomic datum, with no sub-components. . /// (A RawPtr is scalar because it represents a non-managed pointer, so its . /// contents are abstract to rustc.) . #[inline] . pub fn is_scalar(&self) -> bool { 12 ( 0.00%) matches!( 28 ( 0.00%) self.kind(), . Bool | Char . | Int(_) . | Float(_) . | Uint(_) . | FnDef(..) . | FnPtr(_) . | RawPtr(_) . | Infer(IntVar(_) | FloatVar(_)) -- line 1908 ---------------------------------------- -- line 1922 ---------------------------------------- . . #[inline] . pub fn is_enum(&self) -> bool { . matches!(self.kind(), Adt(adt_def, _) if adt_def.is_enum()) . } . . #[inline] . pub fn is_union(&self) -> bool { 196 ( 0.00%) matches!(self.kind(), Adt(adt_def, _) if adt_def.is_union()) . } . . #[inline] . pub fn is_closure(&self) -> bool { 24 ( 0.00%) matches!(self.kind(), Closure(..)) . } . . #[inline] . pub fn is_generator(&self) -> bool { 36 ( 0.00%) matches!(self.kind(), Generator(..)) . } . . #[inline] . pub fn is_integral(&self) -> bool { 95 ( 0.00%) matches!(self.kind(), Infer(IntVar(_)) | Int(_) | Uint(_)) . } . . #[inline] . pub fn is_fresh_ty(&self) -> bool { . matches!(self.kind(), Infer(FreshTy(_))) . } . . #[inline] . pub fn is_fresh(&self) -> bool { 99 ( 0.00%) matches!(self.kind(), Infer(FreshTy(_) | FreshIntTy(_) | FreshFloatTy(_))) . } . . #[inline] . pub fn is_char(&self) -> bool { . matches!(self.kind(), Char) . } . . #[inline] -- line 1963 ---------------------------------------- -- line 1967 ---------------------------------------- . . #[inline] . pub fn is_signed(&self) -> bool { . matches!(self.kind(), Int(_)) . } . . #[inline] . pub fn is_ptr_sized_integral(&self) -> bool { 30 ( 0.00%) matches!(self.kind(), Int(ty::IntTy::Isize) | Uint(ty::UintTy::Usize)) . } . . #[inline] . pub fn has_concrete_skeleton(&self) -> bool { . !matches!(self.kind(), Param(_) | Infer(_) | Error(_)) . } . . /// Returns the type and mutability of `*ty`. . /// . /// The parameter `explicit` indicates if this is an *explicit* dereference. . /// Some types -- notably unsafe ptrs -- can only be dereferenced explicitly. 385 ( 0.00%) pub fn builtin_deref(&self, explicit: bool) -> Option> { 2,188 ( 0.00%) match self.kind() { 2 ( 0.00%) Adt(def, _) if def.is_box() => { . Some(TypeAndMut { ty: self.boxed_ty(), mutbl: hir::Mutability::Not }) . } 1,454 ( 0.00%) Ref(_, ty, mutbl) => Some(TypeAndMut { ty, mutbl: *mutbl }), . RawPtr(mt) if explicit => Some(*mt), . _ => None, . } 770 ( 0.00%) } . . /// Returns the type of `ty[i]`. . pub fn builtin_index(&self) -> Option> { . match self.kind() { . Array(ty, _) | Slice(ty) => Some(ty), . _ => None, . } . } . 1,336 ( 0.00%) pub fn fn_sig(&self, tcx: TyCtxt<'tcx>) -> PolyFnSig<'tcx> { 668 ( 0.00%) match self.kind() { 501 ( 0.00%) FnDef(def_id, substs) => tcx.fn_sig(*def_id).subst(tcx, substs), . FnPtr(f) => *f, . Error(_) => { . // ignore errors (#54954) . ty::Binder::dummy(FnSig::fake()) . } . Closure(..) => bug!( . "to get the signature of a closure, use `substs.as_closure().sig()` not `fn_sig()`", . ), . _ => bug!("Ty::fn_sig() called on non-fn type: {:?}", self), . } 1,503 ( 0.00%) } . . #[inline] . pub fn is_fn(&self) -> bool { 27 ( 0.00%) matches!(self.kind(), FnDef(..) | FnPtr(_)) . } . . #[inline] . pub fn is_fn_ptr(&self) -> bool { . matches!(self.kind(), FnPtr(_)) . } . . #[inline] . pub fn is_impl_trait(&self) -> bool { . matches!(self.kind(), Opaque(..)) . } . . #[inline] . pub fn ty_adt_def(&self) -> Option<&'tcx AdtDef> { 1,325 ( 0.00%) match self.kind() { . Adt(adt, _) => Some(adt), . _ => None, . } . } . . /// Iterates over tuple fields. . /// Panics when called on anything but a tuple. . pub fn tuple_fields(&self) -> impl DoubleEndedIterator> { 18 ( 0.00%) match self.kind() { 9 ( 0.00%) Tuple(substs) => substs.iter().map(|field| field.expect_ty()), . _ => bug!("tuple_fields called on non-tuple"), . } . } . . /// Get the `i`-th element of a tuple. . /// Panics when called on anything but a tuple. . pub fn tuple_element_ty(&self, i: usize) -> Option> { . match self.kind() { -- line 2056 ---------------------------------------- -- line 2095 ---------------------------------------- . TyKind::Generator(def_id, substs, _) => { . Some(substs.as_generator().discriminant_for_variant(*def_id, tcx, variant_index)) . } . _ => None, . } . } . . /// Returns the type of the discriminant of this type. 280 ( 0.00%) pub fn discriminant_ty(&'tcx self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { 140 ( 0.00%) match self.kind() { 224 ( 0.00%) ty::Adt(adt, _) if adt.is_enum() => adt.repr.discr_type().to_ty(tcx), . ty::Generator(_, substs, _) => substs.as_generator().discr_ty(tcx), . . ty::Param(_) | ty::Projection(_) | ty::Opaque(..) | ty::Infer(ty::TyVar(_)) => { . let assoc_items = tcx.associated_item_def_ids( . tcx.require_lang_item(hir::LangItem::DiscriminantKind, None), . ); . tcx.mk_projection(assoc_items[0], tcx.intern_substs(&[self.into()])) . } -- line 2113 ---------------------------------------- -- line 2135 ---------------------------------------- . | ty::Infer(IntVar(_) | FloatVar(_)) => tcx.types.u8, . . ty::Bound(..) . | ty::Placeholder(_) . | ty::Infer(FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => { . bug!("`discriminant_ty` applied to unexpected type: {:?}", self) . } . } 224 ( 0.00%) } . . /// Returns the type of metadata for (potentially fat) pointers to this type. . pub fn ptr_metadata_ty( . &'tcx self, . tcx: TyCtxt<'tcx>, . normalize: impl FnMut(Ty<'tcx>) -> Ty<'tcx>, . ) -> Ty<'tcx> { . let tail = tcx.struct_tail_with_normalize(self, normalize); -- line 2151 ---------------------------------------- -- line 2229 ---------------------------------------- . /// Returning true means the type is known to be sized. Returning . /// `false` means nothing -- could be sized, might not be. . /// . /// Note that we could never rely on the fact that a type such as `[_]` is . /// trivially `!Sized` because we could be in a type environment with a . /// bound such as `[_]: Copy`. A function with such a bound obviously never . /// can be called, but that doesn't mean it shouldn't typecheck. This is why . /// this method doesn't return `Option`. 5,301 ( 0.00%) pub fn is_trivially_sized(&self, tcx: TyCtxt<'tcx>) -> bool { 3,534 ( 0.00%) match self.kind() { . ty::Infer(ty::IntVar(_) | ty::FloatVar(_)) . | ty::Uint(_) . | ty::Int(_) . | ty::Bool . | ty::Float(_) . | ty::FnDef(..) . | ty::FnPtr(_) . | ty::RawPtr(..) -- line 2246 ---------------------------------------- -- line 2250 ---------------------------------------- . | ty::GeneratorWitness(..) . | ty::Array(..) . | ty::Closure(..) . | ty::Never . | ty::Error(_) => true, . . ty::Str | ty::Slice(_) | ty::Dynamic(..) | ty::Foreign(..) => false, . 48 ( 0.00%) ty::Tuple(tys) => tys.iter().all(|ty| ty.expect_ty().is_trivially_sized(tcx)), . 195 ( 0.00%) ty::Adt(def, _substs) => def.sized_constraint(tcx).is_empty(), . . ty::Projection(_) | ty::Param(_) | ty::Opaque(..) => false, . . ty::Infer(ty::TyVar(_)) => false, . . ty::Bound(..) . | ty::Placeholder(..) . | ty::Infer(ty::FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => { . bug!("`is_trivially_sized` applied to unexpected type: {:?}", self) . } . } 5,301 ( 0.00%) } . } . . /// Extra information about why we ended up with a particular variance. . /// This is only used to add more information to error messages, and . /// has no effect on soundness. While choosing the 'wrong' `VarianceDiagInfo` . /// may lead to confusing notes in error messages, it will never cause . /// a miscompilation or unsoundness. . /// -- line 2280 ---------------------------------------- -- line 2295 ---------------------------------------- . /// (e.g. `0` for `*mut T`, `1` for `MyStruct<'CovariantParam, 'InvariantParam>`) . param_index: u32, . }, . } . . impl<'tcx> VarianceDiagInfo<'tcx> { . /// Mirrors `Variance::xform` - used to 'combine' the existing . /// and new `VarianceDiagInfo`s when our variance changes. 2,530 ( 0.00%) pub fn xform(self, other: VarianceDiagInfo<'tcx>) -> VarianceDiagInfo<'tcx> { . // For now, just use the first `VarianceDiagInfo::Invariant` that we see 3,795 ( 0.00%) match self { . VarianceDiagInfo::None => other, . VarianceDiagInfo::Invariant { .. } => self, . } 1,265 ( 0.00%) } . } 679,454 ( 0.33%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs -------------------------------------------------------------------------------- Ir -- line 118 ---------------------------------------- . stability: InternedSet<'tcx, attr::Stability>, . . /// `#[rustc_const_stable]` and `#[rustc_const_unstable]` attributes . const_stability: InternedSet<'tcx, attr::ConstStability>, . } . . impl<'tcx> CtxtInterners<'tcx> { . fn new(arena: &'tcx WorkerLocal>) -> CtxtInterners<'tcx> { 17 ( 0.00%) CtxtInterners { . arena, . type_: Default::default(), . type_list: Default::default(), . substs: Default::default(), . region: Default::default(), . poly_existential_predicates: Default::default(), . canonical_var_infos: Default::default(), . predicate: Default::default(), -- line 134 ---------------------------------------- -- line 143 ---------------------------------------- . stability: Default::default(), . const_stability: Default::default(), . } . } . . /// Interns a type. . #[allow(rustc::usage_of_ty_tykind)] . #[inline(never)] 119,144 ( 0.06%) fn intern_ty(&self, kind: TyKind<'tcx>) -> Ty<'tcx> { . self.type_ 74,465 ( 0.04%) .intern(kind, |kind| { 9,900 ( 0.00%) let flags = super::flags::FlagComputation::for_kind(&kind); . . let ty_struct = TyS { 19,800 ( 0.01%) kind, . flags: flags.flags, . outer_exclusive_binder: flags.outer_exclusive_binder, . }; . . Interned(self.arena.alloc(ty_struct)) . }) . .0 134,037 ( 0.07%) } . . #[inline(never)] 21,688 ( 0.01%) fn intern_predicate( . &self, . kind: Binder<'tcx, PredicateKind<'tcx>>, . ) -> &'tcx PredicateInner<'tcx> { . self.predicate 18,977 ( 0.01%) .intern(kind, |kind| { 8,640 ( 0.00%) let flags = super::flags::FlagComputation::for_predicate(kind); . . let predicate_struct = PredicateInner { . kind, . flags: flags.flags, . outer_exclusive_binder: flags.outer_exclusive_binder, . }; . . Interned(self.arena.alloc(predicate_struct)) . }) . .0 24,399 ( 0.01%) } . } . . pub struct CommonTypes<'tcx> { . pub unit: Ty<'tcx>, . pub bool: Ty<'tcx>, . pub char: Ty<'tcx>, . pub isize: Ty<'tcx>, . pub i8: Ty<'tcx>, -- line 193 ---------------------------------------- -- line 237 ---------------------------------------- . /// safely used as a key in the maps of a TypeckResults. For that to be . /// the case, the HirId must have the same `owner` as all the other IDs in . /// this table (signified by `hir_owner`). Otherwise the HirId . /// would be in a different frame of reference and using its `local_id` . /// would result in lookup errors, or worse, in silently wrong data being . /// stored/returned. . #[inline] . fn validate_hir_id_for_typeck_results(hir_owner: LocalDefId, hir_id: hir::HirId) { 10,210 ( 0.00%) if hir_id.owner != hir_owner { . invalid_hir_id_for_typeck_results(hir_owner, hir_id); . } . } . . #[cold] . #[inline(never)] . fn invalid_hir_id_for_typeck_results(hir_owner: LocalDefId, hir_id: hir::HirId) { . ty::tls::with(|tcx| { -- line 253 ---------------------------------------- -- line 261 ---------------------------------------- . } . . impl<'a, V> LocalTableInContext<'a, V> { . pub fn contains_key(&self, id: hir::HirId) -> bool { . validate_hir_id_for_typeck_results(self.hir_owner, id); . self.data.contains_key(&id.local_id) . } . 7,910 ( 0.00%) pub fn get(&self, id: hir::HirId) -> Option<&V> { 1,587 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); 1,587 ( 0.00%) self.data.get(&id.local_id) 6,344 ( 0.00%) } . . pub fn iter(&self) -> hash_map::Iter<'_, hir::ItemLocalId, V> { . self.data.iter() . } . } . . impl<'a, V> ::std::ops::Index for LocalTableInContext<'a, V> { . type Output = V; . 126 ( 0.00%) fn index(&self, key: hir::HirId) -> &V { . self.get(key).expect("LocalTableInContext: key not found") 84 ( 0.00%) } . } . . pub struct LocalTableInContextMut<'a, V> { . hir_owner: LocalDefId, . data: &'a mut ItemLocalMap, . } . . impl<'a, V> LocalTableInContextMut<'a, V> { -- line 292 ---------------------------------------- -- line 507 ---------------------------------------- . pub treat_byte_string_as_slice: ItemLocalSet, . . /// Contains the data for evaluating the effect of feature `capture_disjoint_fields` . /// on closure size. . pub closure_size_eval: FxHashMap>, . } . . impl<'tcx> TypeckResults<'tcx> { 558 ( 0.00%) pub fn new(hir_owner: LocalDefId) -> TypeckResults<'tcx> { 6,603 ( 0.00%) TypeckResults { . hir_owner, . type_dependent_defs: Default::default(), . field_indices: Default::default(), . user_provided_types: Default::default(), . user_provided_sigs: Default::default(), . node_types: Default::default(), . node_substs: Default::default(), . adjustments: Default::default(), -- line 524 ---------------------------------------- -- line 532 ---------------------------------------- . tainted_by_errors: None, . concrete_opaque_types: Default::default(), . closure_min_captures: Default::default(), . closure_fake_reads: Default::default(), . generator_interior_types: ty::Binder::dummy(Default::default()), . treat_byte_string_as_slice: Default::default(), . closure_size_eval: Default::default(), . } 558 ( 0.00%) } . . /// Returns the final resolution of a `QPath` in an `Expr` or `Pat` node. 1,611 ( 0.00%) pub fn qpath_res(&self, qpath: &hir::QPath<'_>, id: hir::HirId) -> Res { 1,074 ( 0.00%) match *qpath { 2,586 ( 0.00%) hir::QPath::Resolved(_, ref path) => path.res, . hir::QPath::TypeRelative(..) | hir::QPath::LangItem(..) => self . .type_dependent_def(id) 636 ( 0.00%) .map_or(Res::Err, |(kind, def_id)| Res::Def(kind, def_id)), . } 2,685 ( 0.00%) } . 31 ( 0.00%) pub fn type_dependent_defs( . &self, . ) -> LocalTableInContext<'_, Result<(DefKind, DefId), ErrorReported>> { 138 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.type_dependent_defs } 31 ( 0.00%) } . 171 ( 0.00%) pub fn type_dependent_def(&self, id: HirId) -> Option<(DefKind, DefId)> { 301 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.type_dependent_defs.get(&id.local_id).cloned().and_then(|r| r.ok()) 342 ( 0.00%) } . 96 ( 0.00%) pub fn type_dependent_def_id(&self, id: HirId) -> Option { . self.type_dependent_def(id).map(|(_, def_id)| def_id) 96 ( 0.00%) } . 633 ( 0.00%) pub fn type_dependent_defs_mut( . &mut self, . ) -> LocalTableInContextMut<'_, Result<(DefKind, DefId), ErrorReported>> { 633 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.type_dependent_defs } 633 ( 0.00%) } . . pub fn field_indices(&self) -> LocalTableInContext<'_, usize> { 67 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.field_indices } 15 ( 0.00%) } . . pub fn field_indices_mut(&mut self) -> LocalTableInContextMut<'_, usize> { 102 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.field_indices } 51 ( 0.00%) } . . pub fn user_provided_types(&self) -> LocalTableInContext<'_, CanonicalUserType<'tcx>> { 288 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.user_provided_types } 144 ( 0.00%) } . . pub fn user_provided_types_mut( . &mut self, . ) -> LocalTableInContextMut<'_, CanonicalUserType<'tcx>> { 124 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.user_provided_types } 62 ( 0.00%) } . . pub fn node_types(&self) -> LocalTableInContext<'_, Ty<'tcx>> { 1,488 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.node_types } 744 ( 0.00%) } . . pub fn node_types_mut(&mut self) -> LocalTableInContextMut<'_, Ty<'tcx>> { 2,526 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_types } 1,263 ( 0.00%) } . 10,626 ( 0.01%) pub fn node_type(&self, id: hir::HirId) -> Ty<'tcx> { 1,771 ( 0.00%) self.node_type_opt(id).unwrap_or_else(|| { . bug!("node_type: no type for node `{}`", tls::with(|tcx| tcx.hir().node_to_string(id))) . }) 8,855 ( 0.00%) } . 2,313 ( 0.00%) pub fn node_type_opt(&self, id: hir::HirId) -> Option> { 2,313 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.node_types.get(&id.local_id).cloned() 4,626 ( 0.00%) } . . pub fn node_substs_mut(&mut self) -> LocalTableInContextMut<'_, SubstsRef<'tcx>> { 256 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_substs } 128 ( 0.00%) } . 772 ( 0.00%) pub fn node_substs(&self, id: hir::HirId) -> SubstsRef<'tcx> { 772 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.node_substs.get(&id.local_id).cloned().unwrap_or_else(|| InternalSubsts::empty()) 1,544 ( 0.00%) } . 549 ( 0.00%) pub fn node_substs_opt(&self, id: hir::HirId) -> Option> { 549 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.node_substs.get(&id.local_id).cloned() 1,098 ( 0.00%) } . . // Returns the type of a pattern as a monotype. Like @expr_ty, this function . // doesn't provide type parameter substitutions. . pub fn pat_ty(&self, pat: &hir::Pat<'_>) -> Ty<'tcx> { 192 ( 0.00%) self.node_type(pat.hir_id) . } . . // Returns the type of an expression as a monotype. . // . // NB (1): This is the PRE-ADJUSTMENT TYPE for the expression. That is, in . // some cases, we insert `Adjustment` annotations such as auto-deref or . // auto-ref. The type returned by this function does not consider such . // adjustments. See `expr_ty_adjusted()` instead. . // . // NB (2): This type doesn't provide type parameter substitutions; e.g., if you . // ask for the type of "id" in "id(3)", it will return "fn(&isize) -> isize" . // instead of "fn(ty) -> T with T = isize". . pub fn expr_ty(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { 1,789 ( 0.00%) self.node_type(expr.hir_id) . } . . pub fn expr_ty_opt(&self, expr: &hir::Expr<'_>) -> Option> { 2,020 ( 0.00%) self.node_type_opt(expr.hir_id) . } . . pub fn adjustments(&self) -> LocalTableInContext<'_, Vec>> { 1,018 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.adjustments } 509 ( 0.00%) } . . pub fn adjustments_mut( . &mut self, . ) -> LocalTableInContextMut<'_, Vec>> { 1,582 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.adjustments } 791 ( 0.00%) } . 895 ( 0.00%) pub fn expr_adjustments(&self, expr: &hir::Expr<'_>) -> &[ty::adjustment::Adjustment<'tcx>] { 1,790 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, expr.hir_id); . self.adjustments.get(&expr.hir_id.local_id).map_or(&[], |a| &a[..]) 1,790 ( 0.00%) } . . /// Returns the type of `expr`, considering any `Adjustment` . /// entry recorded for that expression. 105 ( 0.00%) pub fn expr_ty_adjusted(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { 21 ( 0.00%) self.expr_adjustments(expr).last().map_or_else(|| self.expr_ty(expr), |adj| adj.target) 24 ( 0.00%) } . . pub fn expr_ty_adjusted_opt(&self, expr: &hir::Expr<'_>) -> Option> { . self.expr_adjustments(expr).last().map(|adj| adj.target).or_else(|| self.expr_ty_opt(expr)) . } . 107 ( 0.00%) pub fn is_method_call(&self, expr: &hir::Expr<'_>) -> bool { . // Only paths and method calls/overloaded operators have . // entries in type_dependent_defs, ignore the former here. 214 ( 0.00%) if let hir::ExprKind::Path(_) = expr.kind { . return false; . } . 214 ( 0.00%) matches!(self.type_dependent_defs().get(expr.hir_id), Some(Ok((DefKind::AssocFn, _)))) 214 ( 0.00%) } . 465 ( 0.00%) pub fn extract_binding_mode(&self, s: &Session, id: HirId, sp: Span) -> Option { . self.pat_binding_modes().get(id).copied().or_else(|| { . s.delay_span_bug(sp, "missing binding mode"); . None . }) 620 ( 0.00%) } . . pub fn pat_binding_modes(&self) -> LocalTableInContext<'_, BindingMode> { 381 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_binding_modes } 113 ( 0.00%) } . . pub fn pat_binding_modes_mut(&mut self) -> LocalTableInContextMut<'_, BindingMode> { 208 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_binding_modes } 104 ( 0.00%) } . . pub fn pat_adjustments(&self) -> LocalTableInContext<'_, Vec>> { 638 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_adjustments } 319 ( 0.00%) } . . pub fn pat_adjustments_mut(&mut self) -> LocalTableInContextMut<'_, Vec>> { 218 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_adjustments } 109 ( 0.00%) } . . /// For a given closure, returns the iterator of `ty::CapturedPlace`s that are captured . /// by the closure. 84 ( 0.00%) pub fn closure_min_captures_flattened( . &self, . closure_def_id: DefId, . ) -> impl Iterator> { . self.closure_min_captures . .get(&closure_def_id) . .map(|closure_min_captures| closure_min_captures.values().flat_map(|v| v.iter())) . .into_iter() . .flatten() 105 ( 0.00%) } . . pub fn closure_kind_origins(&self) -> LocalTableInContext<'_, (Span, HirPlace<'tcx>)> { 42 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.closure_kind_origins } 21 ( 0.00%) } . . pub fn closure_kind_origins_mut( . &mut self, . ) -> LocalTableInContextMut<'_, (Span, HirPlace<'tcx>)> { . LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.closure_kind_origins } . } . . pub fn liberated_fn_sigs(&self) -> LocalTableInContext<'_, ty::FnSig<'tcx>> { 126 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.liberated_fn_sigs } 63 ( 0.00%) } . . pub fn liberated_fn_sigs_mut(&mut self) -> LocalTableInContextMut<'_, ty::FnSig<'tcx>> { 84 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.liberated_fn_sigs } 42 ( 0.00%) } . . pub fn fru_field_types(&self) -> LocalTableInContext<'_, Vec>> { 42 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.fru_field_types } 21 ( 0.00%) } . . pub fn fru_field_types_mut(&mut self) -> LocalTableInContextMut<'_, Vec>> { . LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.fru_field_types } . } . . pub fn is_coercion_cast(&self, hir_id: hir::HirId) -> bool { . validate_hir_id_for_typeck_results(self.hir_owner, hir_id); . self.coercion_casts.contains(&hir_id.local_id) . } . . pub fn set_coercion_cast(&mut self, id: ItemLocalId) { . self.coercion_casts.insert(id); . } . . pub fn coercion_casts(&self) -> &ItemLocalSet { 21 ( 0.00%) &self.coercion_casts 21 ( 0.00%) } . } . . impl<'a, 'tcx> HashStable> for TypeckResults<'tcx> { . fn hash_stable(&self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher) { . let ty::TypeckResults { . hir_owner, . ref type_dependent_defs, . ref field_indices, -- line 764 ---------------------------------------- -- line 819 ---------------------------------------- . const START_INDEX = 0, . } . } . . /// Mapping of type annotation indices to canonical user type annotations. . pub type CanonicalUserTypeAnnotations<'tcx> = . IndexVec>; . 62 ( 0.00%) #[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, Lift)] . pub struct CanonicalUserTypeAnnotation<'tcx> { . pub user_ty: CanonicalUserType<'tcx>, . pub span: Span, 31 ( 0.00%) pub inferred_ty: Ty<'tcx>, . } . . /// Canonicalized user type annotation. . pub type CanonicalUserType<'tcx> = Canonical<'tcx, UserType<'tcx>>; . . impl<'tcx> CanonicalUserType<'tcx> { . /// Returns `true` if this represents a substitution of the form `[?0, ?1, ?2]`, . /// i.e., each thing is mapped to a canonical variable with the same index. 53 ( 0.00%) pub fn is_identity(&self) -> bool { 106 ( 0.00%) match self.value { . UserType::Ty(_) => false, . UserType::TypeOf(_, user_substs) => { 53 ( 0.00%) if user_substs.user_self_ty.is_some() { . return false; . } . . iter::zip(user_substs.substs, BoundVar::new(0)..).all(|(kind, cvar)| { . match kind.unpack() { 46 ( 0.00%) GenericArgKind::Type(ty) => match ty.kind() { . ty::Bound(debruijn, b) => { . // We only allow a `ty::INNERMOST` index in substitutions. 23 ( 0.00%) assert_eq!(*debruijn, ty::INNERMOST); . cvar == b.var . } . _ => false, . }, . . GenericArgKind::Lifetime(r) => match r { . ty::ReLateBound(debruijn, br) => { . // We only allow a `ty::INNERMOST` index in substitutions. -- line 861 ---------------------------------------- -- line 872 ---------------------------------------- . cvar == b . } . _ => false, . }, . } . }) . } . } 106 ( 0.00%) } . } . . /// A user-given type annotation attached to a constant. These arise . /// from constants that are named via paths, like `Foo::::new` and . /// so forth. 186 ( 0.00%) #[derive(Copy, Clone, Debug, PartialEq, TyEncodable, TyDecodable)] 849 ( 0.00%) #[derive(HashStable, TypeFoldable, Lift)] . pub enum UserType<'tcx> { . Ty(Ty<'tcx>), . . /// The canonical type is the result of `type_of(def_id)` with the . /// given substitutions applied. . TypeOf(DefId, UserSubsts<'tcx>), . } . . impl<'tcx> CommonTypes<'tcx> { . fn new(interners: &CtxtInterners<'tcx>) -> CommonTypes<'tcx> { 111 ( 0.00%) let mk = |ty| interners.intern_ty(ty); . . CommonTypes { . unit: mk(Tuple(List::empty())), . bool: mk(Bool), . char: mk(Char), . never: mk(Never), . isize: mk(Int(ty::IntTy::Isize)), . i8: mk(Int(ty::IntTy::I8)), -- line 906 ---------------------------------------- -- line 921 ---------------------------------------- . . trait_object_dummy_self: mk(Infer(ty::FreshTy(0))), . } . } . } . . impl<'tcx> CommonLifetimes<'tcx> { . fn new(interners: &CtxtInterners<'tcx>) -> CommonLifetimes<'tcx> { 67 ( 0.00%) let mk = |r| interners.region.intern(r, |r| Interned(interners.arena.alloc(r))).0; . . CommonLifetimes { 5 ( 0.00%) re_root_empty: mk(RegionKind::ReEmpty(ty::UniverseIndex::ROOT)), 5 ( 0.00%) re_static: mk(RegionKind::ReStatic), 5 ( 0.00%) re_erased: mk(RegionKind::ReErased), . } . } . } . . impl<'tcx> CommonConsts<'tcx> { . fn new(interners: &CtxtInterners<'tcx>, types: &CommonTypes<'tcx>) -> CommonConsts<'tcx> { 6 ( 0.00%) let mk_const = |c| interners.const_.intern(c, |c| Interned(interners.arena.alloc(c))).0; . . CommonConsts { . unit: mk_const(ty::Const { . val: ty::ConstKind::Value(ConstValue::Scalar(Scalar::ZST)), . ty: types.unit, . }), . } . } -- line 949 ---------------------------------------- -- line 1045 ---------------------------------------- . . /// Stores memory for globals (statics/consts). . pub(crate) alloc_map: Lock>, . . output_filenames: Arc, . } . . impl<'tcx> TyCtxt<'tcx> { 840 ( 0.00%) pub fn typeck_opt_const_arg( . self, . def: ty::WithOptConstParam, . ) -> &'tcx TypeckResults<'tcx> { 336 ( 0.00%) if let Some(param_did) = def.const_param_did { . self.typeck_const_arg((def.did, param_did)) . } else { . self.typeck(def.did) . } 672 ( 0.00%) } . 63 ( 0.00%) pub fn alloc_steal_thir(self, thir: Thir<'tcx>) -> &'tcx Steal> { 21 ( 0.00%) self.arena.alloc(Steal::new(thir)) 84 ( 0.00%) } . 315 ( 0.00%) pub fn alloc_steal_mir(self, mir: Body<'tcx>) -> &'tcx Steal> { 63 ( 0.00%) self.arena.alloc(Steal::new(mir)) 441 ( 0.00%) } . 84 ( 0.00%) pub fn alloc_steal_promoted( . self, . promoted: IndexVec>, . ) -> &'tcx Steal>> { 21 ( 0.00%) self.arena.alloc(Steal::new(promoted)) 105 ( 0.00%) } . 117 ( 0.00%) pub fn alloc_adt_def( . self, . did: DefId, . kind: AdtKind, . variants: IndexVec, . repr: ReprOptions, . ) -> &'tcx ty::AdtDef { 208 ( 0.00%) self.intern_adt_def(ty::AdtDef::new(self, did, kind, variants, repr)) 52 ( 0.00%) } . . /// Allocates a read-only byte or string literal for `mir::interpret`. . pub fn allocate_bytes(self, bytes: &[u8]) -> interpret::AllocId { . // Create an allocation that just contains these bytes. . let alloc = interpret::Allocation::from_bytes_byte_aligned_immutable(bytes); . let alloc = self.intern_const_alloc(alloc); . self.create_memory_alloc(alloc) . } . . /// Returns a range of the start/end indices specified with the . /// `rustc_layout_scalar_valid_range` attribute. . // FIXME(eddyb) this is an awkward spot for this method, maybe move it? 296 ( 0.00%) pub fn layout_scalar_valid_range(self, def_id: DefId) -> (Bound, Bound) { 148 ( 0.00%) let attrs = self.get_attrs(def_id); 629 ( 0.00%) let get = |name| { 148 ( 0.00%) let attr = match attrs.iter().find(|a| a.has_name(name)) { . Some(attr) => attr, . None => return Bound::Unbounded, . }; . debug!("layout_scalar_valid_range: attr={:?}", attr); . if let Some( . &[ . ast::NestedMetaItem::Literal(ast::Lit { . kind: ast::LitKind::Int(a, _), .. -- line 1111 ---------------------------------------- -- line 1114 ---------------------------------------- . ) = attr.meta_item_list().as_deref() . { . Bound::Included(a) . } else { . self.sess . .delay_span_bug(attr.span, "invalid rustc_layout_scalar_valid_range attribute"); . Bound::Unbounded . } 740 ( 0.00%) }; 222 ( 0.00%) ( 222 ( 0.00%) get(sym::rustc_layout_scalar_valid_range_start), 111 ( 0.00%) get(sym::rustc_layout_scalar_valid_range_end), . ) 296 ( 0.00%) } . . pub fn lift>(self, value: T) -> Option { . value.lift_to_tcx(self) . } . . /// Creates a type context and call the closure with a `TyCtxt` reference . /// to the context. The closure enforces that the type context and any interned . /// value (types, substs, etc.) can only be used while `ty::tls` has a valid . /// reference to the context, to allow formatting values that need it. 23 ( 0.00%) pub fn create_global_ctxt( . s: &'tcx Session, . lint_store: Lrc, . arena: &'tcx WorkerLocal>, . resolutions: ty::ResolverOutputs, . krate: &'tcx hir::Crate<'tcx>, . dep_graph: DepGraph, . on_disk_cache: Option<&'tcx dyn OnDiskCache<'tcx>>, . queries: &'tcx dyn query::QueryEngine<'tcx>, . query_kinds: &'tcx [DepKindStruct], . crate_name: &str, . output_filenames: OutputFilenames, . ) -> GlobalCtxt<'tcx> { 1 ( 0.00%) let data_layout = TargetDataLayout::parse(&s.target).unwrap_or_else(|err| { . s.fatal(&err); . }); . let interners = CtxtInterners::new(arena); . let common_types = CommonTypes::new(&interners); . let common_lifetimes = CommonLifetimes::new(&interners); . let common_consts = CommonConsts::new(&interners, &common_types); . 127 ( 0.00%) GlobalCtxt { . sess: s, 6 ( 0.00%) lint_store, . arena, 2 ( 0.00%) interners, 5 ( 0.00%) dep_graph, 4 ( 0.00%) untracked_resolutions: resolutions, 2 ( 0.00%) prof: s.prof.clone(), . types: common_types, . lifetimes: common_lifetimes, . consts: common_consts, . untracked_crate: krate, . on_disk_cache, . queries, . query_caches: query::QueryCaches::default(), . query_kinds, . ty_rcache: Default::default(), . pred_rcache: Default::default(), . selection_cache: Default::default(), . evaluation_cache: Default::default(), 1 ( 0.00%) crate_name: Symbol::intern(crate_name), . data_layout, . alloc_map: Lock::new(interpret::AllocMap::new()), . output_filenames: Arc::new(output_filenames), . } 9 ( 0.00%) } . . crate fn query_kind(self, k: DepKind) -> &'tcx DepKindStruct { . &self.query_kinds[k as usize] . } . . /// Constructs a `TyKind::Error` type and registers a `delay_span_bug` to ensure it gets used. . #[track_caller] . pub fn ty_error(self) -> Ty<'tcx> { -- line 1191 ---------------------------------------- -- line 1217 ---------------------------------------- . ty: Ty<'tcx>, . span: S, . msg: &str, . ) -> &'tcx Const<'tcx> { . self.sess.delay_span_bug(span, msg); . self.mk_const(ty::Const { val: ty::ConstKind::Error(DelaySpanBugEmitted(())), ty }) . } . 35 ( 0.00%) pub fn consider_optimizing String>(self, msg: T) -> bool { 5 ( 0.00%) let cname = self.crate_name(LOCAL_CRATE); 40 ( 0.00%) self.sess.consider_optimizing(cname.as_str(), msg) 40 ( 0.00%) } . . /// Obtain all lang items of this crate and all dependencies (recursively) 25,326 ( 0.01%) pub fn lang_items(self) -> &'tcx rustc_hir::lang_items::LanguageItems { . self.get_lang_items(()) 32,562 ( 0.02%) } . . /// Obtain the given diagnostic item's `DefId`. Use `is_diagnostic_item` if you just want to . /// compare against another `DefId`, since `is_diagnostic_item` is cheaper. 28 ( 0.00%) pub fn get_diagnostic_item(self, name: Symbol) -> Option { . self.all_diagnostic_items(()).name_to_id.get(&name).copied() 32 ( 0.00%) } . . /// Obtain the diagnostic item's name 924 ( 0.00%) pub fn get_diagnostic_name(self, id: DefId) -> Option { . self.diagnostic_items(id.krate).id_to_name.get(&id).copied() 1,056 ( 0.00%) } . . /// Check whether the diagnostic item with the given `name` has the given `DefId`. 406 ( 0.00%) pub fn is_diagnostic_item(self, name: Symbol, did: DefId) -> bool { . self.diagnostic_items(did.krate).name_to_id.get(&name) == Some(&did) 464 ( 0.00%) } . 609 ( 0.00%) pub fn stability(self) -> &'tcx stability::Index<'tcx> { . self.stability_index(()) 783 ( 0.00%) } . 14,231 ( 0.01%) pub fn features(self) -> &'tcx rustc_feature::Features { . self.features_query(()) 16,264 ( 0.01%) } . . pub fn def_key(self, id: DefId) -> rustc_hir::definitions::DefKey { . // Accessing the DefKey is ok, since it is part of DefPathHash. 850 ( 0.00%) if let Some(id) = id.as_local() { . self.untracked_resolutions.definitions.def_key(id) . } else { 283 ( 0.00%) self.untracked_resolutions.cstore.def_key(id) . } . } . . /// Converts a `DefId` into its fully expanded `DefPath` (every . /// `DefId` is really just an interned `DefPath`). . /// . /// Note that if `id` is not local to this crate, the result will . /// be a non-local `DefPath`. -- line 1272 ---------------------------------------- -- line 1277 ---------------------------------------- . } else { . self.untracked_resolutions.cstore.def_path(id) . } . } . . #[inline] . pub fn def_path_hash(self, def_id: DefId) -> rustc_hir::definitions::DefPathHash { . // Accessing the DefPathHash is ok, it is incr. comp. stable. 306 ( 0.00%) if let Some(def_id) = def_id.as_local() { . self.untracked_resolutions.definitions.def_path_hash(def_id) . } else { 140 ( 0.00%) self.untracked_resolutions.cstore.def_path_hash(def_id) . } . } . . #[inline] . pub fn stable_crate_id(self, crate_num: CrateNum) -> StableCrateId { . if crate_num == LOCAL_CRATE { . self.sess.local_stable_crate_id() . } else { -- line 1296 ---------------------------------------- -- line 1353 ---------------------------------------- . &(format!("{:08x}", stable_crate_id.to_u64()))[..4], . self.def_path(def_id).to_string_no_crate_verbose() . ) . } . . /// Note that this is *untracked* and should only be used within the query . /// system if the result is otherwise tracked through queries . pub fn cstore_untracked(self) -> &'tcx ty::CrateStoreDyn { 28,954 ( 0.01%) &*self.untracked_resolutions.cstore 14,477 ( 0.01%) } . . /// Note that this is *untracked* and should only be used within the query . /// system if the result is otherwise tracked through queries . pub fn definitions_untracked(self) -> &'tcx hir::definitions::Definitions { . &self.untracked_resolutions.definitions . } . . #[inline(always)] . pub fn create_stable_hashing_context(self) -> StableHashingContext<'tcx> { 1 ( 0.00%) let resolutions = &self.gcx.untracked_resolutions; 4 ( 0.00%) StableHashingContext::new(self.sess, &resolutions.definitions, &*resolutions.cstore) . } . . #[inline(always)] . pub fn create_no_span_stable_hashing_context(self) -> StableHashingContext<'tcx> { . let resolutions = &self.gcx.untracked_resolutions; . StableHashingContext::ignore_spans( . self.sess, . &resolutions.definitions, -- line 1381 ---------------------------------------- -- line 1390 ---------------------------------------- . /// If `true`, we should use the MIR-based borrowck, but also . /// fall back on the AST borrowck if the MIR-based one errors. . pub fn migrate_borrowck(self) -> bool { . self.borrowck_mode().migrate() . } . . /// What mode(s) of borrowck should we run? AST? MIR? both? . /// (Also considers the `#![feature(nll)]` setting.) 42 ( 0.00%) pub fn borrowck_mode(self) -> BorrowckMode { . // Here are the main constraints we need to deal with: . // . // 1. An opts.borrowck_mode of `BorrowckMode::Migrate` is . // synonymous with no `-Z borrowck=...` flag at all. . // . // 2. We want to allow developers on the Nightly channel . // to opt back into the "hard error" mode for NLL, . // (which they can do via specifying `#![feature(nll)]` -- line 1406 ---------------------------------------- -- line 1413 ---------------------------------------- . // errors. (To simplify the code here, it now even overrides . // a user's attempt to specify `-Z borrowck=compare`, which . // we arguably do not need anymore and should remove.) . // . // * Otherwise, if no `-Z borrowck=...` then use migrate mode . // . // * Otherwise, use the behavior requested via `-Z borrowck=...` . 63 ( 0.00%) if self.features().nll { . return BorrowckMode::Mir; . } . 21 ( 0.00%) self.sess.opts.borrowck_mode 84 ( 0.00%) } . . /// If `true`, we should use lazy normalization for constants, otherwise . /// we still evaluate them eagerly. . #[inline] . pub fn lazy_normalization(self) -> bool { . let features = self.features(); . // Note: We only use lazy normalization for generic const expressions. . features.generic_const_exprs -- line 1434 ---------------------------------------- -- line 1554 ---------------------------------------- . self.mk_imm_ref( . self.lifetimes.re_static, . self.type_of(self.require_lang_item(LangItem::PanicLocation, None)) . .subst(self, self.mk_substs([self.lifetimes.re_static.into()].iter())), . ) . } . . /// Returns a displayable description and article for the given `def_id` (e.g. `("a", "struct")`). 220 ( 0.00%) pub fn article_and_description(self, def_id: DefId) -> (&'static str, &'static str) { 160 ( 0.00%) match self.def_kind(def_id) { . DefKind::Generator => match self.generator_kind(def_id).unwrap() { . rustc_hir::GeneratorKind::Async(..) => ("an", "async closure"), . rustc_hir::GeneratorKind::Gen => ("a", "generator"), . }, 360 ( 0.00%) def_kind => (def_kind.article(), def_kind.descr(def_id)), . } 180 ( 0.00%) } . . pub fn type_length_limit(self) -> Limit { . self.limits(()).type_length_limit . } . 7,119 ( 0.00%) pub fn recursion_limit(self) -> Limit { . self.limits(()).recursion_limit 8,136 ( 0.00%) } . . pub fn move_size_limit(self) -> Limit { . self.limits(()).move_size_limit . } . . pub fn const_eval_limit(self) -> Limit { . self.limits(()).const_eval_limit . } -- line 1586 ---------------------------------------- -- line 1684 ---------------------------------------- . /// This is the implicit state of rustc. It contains the current . /// `TyCtxt` and query. It is updated when creating a local interner or . /// executing a new query. Whenever there's a `TyCtxt` value available . /// you should also have access to an `ImplicitCtxt` through the functions . /// in this module. . #[derive(Clone)] . pub struct ImplicitCtxt<'a, 'tcx> { . /// The current `TyCtxt`. 1 ( 0.00%) pub tcx: TyCtxt<'tcx>, . . /// The current query job, if any. This is updated by `JobOwner::start` in . /// `ty::query::plumbing` when executing a query. . pub query: Option>, . . /// Where to store diagnostics for the current query job, if any. . /// This is updated by `JobOwner::start` in `ty::query::plumbing` when executing a query. . pub diagnostics: Option<&'a Lock>>, -- line 1700 ---------------------------------------- -- line 1703 ---------------------------------------- . pub layout_depth: usize, . . /// The current dep graph task. This is used to add dependencies to queries . /// when executing them. . pub task_deps: TaskDepsRef<'a>, . } . . impl<'a, 'tcx> ImplicitCtxt<'a, 'tcx> { 5 ( 0.00%) pub fn new(gcx: &'tcx GlobalCtxt<'tcx>) -> Self { . let tcx = TyCtxt { gcx }; 25 ( 0.00%) ImplicitCtxt { . tcx, . query: None, . diagnostics: None, . layout_depth: 0, . task_deps: TaskDepsRef::Ignore, . } 5 ( 0.00%) } . } . . /// Sets Rayon's thread-local variable, which is preserved for Rayon jobs . /// to `value` during the call to `f`. It is restored to its previous value after. . /// This is used to set the pointer to the new `ImplicitCtxt`. . #[cfg(parallel_compiler)] . #[inline] . fn set_tlv R, R>(value: usize, f: F) -> R { -- line 1728 ---------------------------------------- -- line 1745 ---------------------------------------- . . /// Sets TLV to `value` during the call to `f`. . /// It is restored to its previous value after. . /// This is used to set the pointer to the new `ImplicitCtxt`. . #[cfg(not(parallel_compiler))] . #[inline] . fn set_tlv R, R>(value: usize, f: F) -> R { . let old = get_tlv(); 17,527 ( 0.01%) let _reset = rustc_data_structures::OnDrop(move || TLV.with(|tlv| tlv.set(old))); . TLV.with(|tlv| tlv.set(value)); . f() . } . . /// Gets the pointer to the current `ImplicitCtxt`. . #[cfg(not(parallel_compiler))] . #[inline] . fn get_tlv() -> usize { -- line 1761 ---------------------------------------- -- line 1763 ---------------------------------------- . } . . /// Sets `context` as the new current `ImplicitCtxt` for the duration of the function `f`. . #[inline] . pub fn enter_context<'a, 'tcx, F, R>(context: &ImplicitCtxt<'a, 'tcx>, f: F) -> R . where . F: FnOnce(&ImplicitCtxt<'a, 'tcx>) -> R, . { 1 ( 0.00%) set_tlv(context as *const _ as usize, || f(&context)) . } . . /// Allows access to the current `ImplicitCtxt` in a closure if one is available. . #[inline] . pub fn with_context_opt(f: F) -> R . where . F: for<'a, 'tcx> FnOnce(Option<&ImplicitCtxt<'a, 'tcx>>) -> R, . { . let context = get_tlv(); 70,589 ( 0.03%) if context == 0 { . f(None) . } else { . // We could get an `ImplicitCtxt` pointer from another thread. . // Ensure that `ImplicitCtxt` is `Sync`. . sync::assert_sync::>(); . . unsafe { f(Some(&*(context as *const ImplicitCtxt<'_, '_>))) } . } -- line 1789 ---------------------------------------- -- line 1805 ---------------------------------------- . /// This will panic if you pass it a `TyCtxt` which is different from the current . /// `ImplicitCtxt`'s `tcx` field. . #[inline] . pub fn with_related_context<'tcx, F, R>(tcx: TyCtxt<'tcx>, f: F) -> R . where . F: FnOnce(&ImplicitCtxt<'_, 'tcx>) -> R, . { . with_context(|context| unsafe { 35,168 ( 0.02%) assert!(ptr_eq(context.tcx.gcx, tcx.gcx)); . let context: &ImplicitCtxt<'_, '_> = mem::transmute(context); 35,140 ( 0.02%) f(context) . }) . } . . /// Allows access to the `TyCtxt` in the current `ImplicitCtxt`. . /// Panics if there is no `ImplicitCtxt` available. . #[inline] . pub fn with(f: F) -> R . where -- line 1823 ---------------------------------------- -- line 1981 ---------------------------------------- . fn into_pointer(&self) -> *const () { . self.0 as *const _ as *const () . } . } . . #[allow(rustc::usage_of_ty_tykind)] . impl<'tcx> Borrow> for Interned<'tcx, TyS<'tcx>> { . fn borrow<'a>(&'a self) -> &'a TyKind<'tcx> { 10,543 ( 0.01%) &self.0.kind() . } . } . . impl<'tcx> PartialEq for Interned<'tcx, TyS<'tcx>> { . fn eq(&self, other: &Interned<'tcx, TyS<'tcx>>) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` equals . // `x == y`. . self.0.kind() == other.0.kind() -- line 1997 ---------------------------------------- -- line 1998 ---------------------------------------- . } . } . . impl<'tcx> Eq for Interned<'tcx, TyS<'tcx>> {} . . impl<'tcx> Hash for Interned<'tcx, TyS<'tcx>> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`. 21,492 ( 0.01%) self.0.kind().hash(s) . } . } . . impl<'tcx> Borrow>> for Interned<'tcx, PredicateInner<'tcx>> { . fn borrow<'a>(&'a self) -> &'a Binder<'tcx, PredicateKind<'tcx>> { 1,398 ( 0.00%) &self.0.kind . } . } . . impl<'tcx> PartialEq for Interned<'tcx, PredicateInner<'tcx>> { . fn eq(&self, other: &Interned<'tcx, PredicateInner<'tcx>>) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` equals . // `x == y`. . self.0.kind == other.0.kind -- line 2020 ---------------------------------------- -- line 2021 ---------------------------------------- . } . } . . impl<'tcx> Eq for Interned<'tcx, PredicateInner<'tcx>> {} . . impl<'tcx> Hash for Interned<'tcx, PredicateInner<'tcx>> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`. 1,788 ( 0.00%) self.0.kind.hash(s) . } . } . . impl<'tcx, T> Borrow<[T]> for Interned<'tcx, List> { . fn borrow<'a>(&'a self) -> &'a [T] { 11,103 ( 0.01%) &self.0[..] . } . } . . impl<'tcx, T: PartialEq> PartialEq for Interned<'tcx, List> { . fn eq(&self, other: &Interned<'tcx, List>) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` equals . // `x == y`. . self.0[..] == other.0[..] -- line 2043 ---------------------------------------- -- line 2044 ---------------------------------------- . } . } . . impl<'tcx, T: Eq> Eq for Interned<'tcx, List> {} . . impl<'tcx, T: Hash> Hash for Interned<'tcx, List> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`. 7,679 ( 0.00%) self.0[..].hash(s) . } . } . . macro_rules! direct_interners { . ($($name:ident: $method:ident($ty:ty),)+) => { . $(impl<'tcx> Borrow<$ty> for Interned<'tcx, $ty> { . fn borrow<'a>(&'a self) -> &'a $ty { 5,965 ( 0.00%) &self.0 . } . } . . impl<'tcx> PartialEq for Interned<'tcx, $ty> { . fn eq(&self, other: &Self) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` . // equals `x == y`. . self.0 == other.0 -- line 2068 ---------------------------------------- -- line 2070 ---------------------------------------- . } . . impl<'tcx> Eq for Interned<'tcx, $ty> {} . . impl<'tcx> Hash for Interned<'tcx, $ty> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == . // x.hash(s)`. 6,149 ( 0.00%) self.0.hash(s) . } . } . . impl<'tcx> TyCtxt<'tcx> { 59,078 ( 0.03%) pub fn $method(self, v: $ty) -> &'tcx $ty { 29,994 ( 0.01%) self.interners.$name.intern(v, |v| { 1,506 ( 0.00%) Interned(self.interners.arena.alloc(v)) . }).0 66,258 ( 0.03%) } . })+ . } . } . . direct_interners! { . region: mk_region(RegionKind), . const_: mk_const(Const<'tcx>), . const_allocation: intern_const_alloc(Allocation), -- line 2095 ---------------------------------------- -- line 2097 ---------------------------------------- . adt_def: intern_adt_def(AdtDef), . stability: intern_stability(attr::Stability), . const_stability: intern_const_stability(attr::ConstStability), . } . . macro_rules! slice_interners { . ($($field:ident: $method:ident($ty:ty)),+ $(,)?) => ( . impl<'tcx> TyCtxt<'tcx> { 162,463 ( 0.08%) $(pub fn $method(self, v: &[$ty]) -> &'tcx List<$ty> { . self.interners.$field.intern_ref(v, || { . Interned(List::from_arena(&*self.arena, v)) . }).0 145,422 ( 0.07%) })+ . } . ); . } . . slice_interners!( . type_list: _intern_type_list(Ty<'tcx>), . substs: _intern_substs(GenericArg<'tcx>), . canonical_var_infos: _intern_canonical_var_infos(CanonicalVarInfo<'tcx>), -- line 2117 ---------------------------------------- -- line 2188 ---------------------------------------- . self.mk_fn_sig(params_iter, s.output(), s.c_variadic, unsafety, abi::Abi::Rust) . }) . } . . /// Same a `self.mk_region(kind)`, but avoids accessing the interners if . /// `*r == kind`. . #[inline] . pub fn reuse_or_mk_region(self, r: Region<'tcx>, kind: RegionKind) -> Region<'tcx> { 6,924 ( 0.00%) if *r == kind { r } else { self.mk_region(kind) } . } . . #[allow(rustc::usage_of_ty_tykind)] . #[inline] . pub fn mk_ty(self, st: TyKind<'tcx>) -> Ty<'tcx> { 107,933 ( 0.05%) self.interners.intern_ty(st) . } . . #[inline] . pub fn mk_predicate(self, binder: Binder<'tcx, PredicateKind<'tcx>>) -> Predicate<'tcx> { 29,232 ( 0.01%) let inner = self.interners.intern_predicate(binder); . Predicate { inner } . } . . #[inline] 18,880 ( 0.01%) pub fn reuse_or_mk_predicate( . self, . pred: Predicate<'tcx>, . binder: Binder<'tcx, PredicateKind<'tcx>>, . ) -> Predicate<'tcx> { 1,274 ( 0.00%) if pred.kind() != binder { self.mk_predicate(binder) } else { pred } 18,880 ( 0.01%) } . . pub fn mk_mach_int(self, tm: IntTy) -> Ty<'tcx> { . match tm { . IntTy::Isize => self.types.isize, . IntTy::I8 => self.types.i8, . IntTy::I16 => self.types.i16, . IntTy::I32 => self.types.i32, . IntTy::I64 => self.types.i64, -- line 2226 ---------------------------------------- -- line 2243 ---------------------------------------- . match tm { . FloatTy::F32 => self.types.f32, . FloatTy::F64 => self.types.f64, . } . } . . #[inline] . pub fn mk_static_str(self) -> Ty<'tcx> { 44 ( 0.00%) self.mk_imm_ref(self.lifetimes.re_static, self.types.str_) . } . . #[inline] . pub fn mk_adt(self, def: &'tcx AdtDef, substs: SubstsRef<'tcx>) -> Ty<'tcx> { . // Take a copy of substs so that we own the vectors inside. . self.mk_ty(Adt(def, substs)) . } . -- line 2259 ---------------------------------------- -- line 2329 ---------------------------------------- . } . . #[inline] . pub fn mk_imm_ptr(self, ty: Ty<'tcx>) -> Ty<'tcx> { . self.mk_ptr(TypeAndMut { ty, mutbl: hir::Mutability::Not }) . } . . #[inline] 368 ( 0.00%) pub fn mk_array(self, ty: Ty<'tcx>, n: u64) -> Ty<'tcx> { . self.mk_ty(Array(ty, ty::Const::from_usize(self, n))) 384 ( 0.00%) } . . #[inline] . pub fn mk_slice(self, ty: Ty<'tcx>) -> Ty<'tcx> { . self.mk_ty(Slice(ty)) . } . . #[inline] . pub fn intern_tup(self, ts: &[Ty<'tcx>]) -> Ty<'tcx> { . let kinds: Vec<_> = ts.iter().map(|&t| GenericArg::from(t)).collect(); . self.mk_ty(Tuple(self.intern_substs(&kinds))) . } . . pub fn mk_tup], Ty<'tcx>>>(self, iter: I) -> I::Output { 170 ( 0.00%) iter.intern_with(|ts| { 87 ( 0.00%) let kinds: Vec<_> = ts.iter().map(|&t| GenericArg::from(t)).collect(); 450 ( 0.00%) self.mk_ty(Tuple(self.intern_substs(&kinds))) 153 ( 0.00%) }) . } . . #[inline] . pub fn mk_unit(self) -> Ty<'tcx> { 10 ( 0.00%) self.types.unit . } . . #[inline] . pub fn mk_diverging_default(self) -> Ty<'tcx> { . if self.features().never_type_fallback { self.types.never } else { self.types.unit } . } . . #[inline] . pub fn mk_fn_def(self, def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> { . self.mk_ty(FnDef(def_id, substs)) . } . . #[inline] . pub fn mk_fn_ptr(self, fty: PolyFnSig<'tcx>) -> Ty<'tcx> { 134 ( 0.00%) self.mk_ty(FnPtr(fty)) . } . . #[inline] . pub fn mk_dynamic( . self, . obj: &'tcx List>>, . reg: ty::Region<'tcx>, . ) -> Ty<'tcx> { -- line 2384 ---------------------------------------- -- line 2445 ---------------------------------------- . self.mk_ty(Param(ParamTy { index, name })) . } . . #[inline] . pub fn mk_const_param(self, index: u32, name: Symbol, ty: Ty<'tcx>) -> &'tcx Const<'tcx> { . self.mk_const(ty::Const { val: ty::ConstKind::Param(ParamConst { index, name }), ty }) . } . 385 ( 0.00%) pub fn mk_param_from_def(self, param: &ty::GenericParamDef) -> GenericArg<'tcx> { 275 ( 0.00%) match param.kind { . GenericParamDefKind::Lifetime => { . self.mk_region(ty::ReEarlyBound(param.to_early_bound_region_data())).into() . } 110 ( 0.00%) GenericParamDefKind::Type { .. } => self.mk_ty_param(param.index, param.name).into(), . GenericParamDefKind::Const { .. } => { . self.mk_const_param(param.index, param.name, self.type_of(param.def_id)).into() . } . } 385 ( 0.00%) } . . #[inline] . pub fn mk_opaque(self, def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> { . self.mk_ty(Opaque(def_id, substs)) . } . 2 ( 0.00%) pub fn mk_place_field(self, place: Place<'tcx>, f: Field, ty: Ty<'tcx>) -> Place<'tcx> { 2 ( 0.00%) self.mk_place_elem(place, PlaceElem::Field(f, ty)) 4 ( 0.00%) } . . pub fn mk_place_deref(self, place: Place<'tcx>) -> Place<'tcx> { . self.mk_place_elem(place, PlaceElem::Deref) . } . 2 ( 0.00%) pub fn mk_place_downcast( . self, . place: Place<'tcx>, . adt_def: &'tcx AdtDef, . variant_index: VariantIdx, . ) -> Place<'tcx> { 2 ( 0.00%) self.mk_place_elem( . place, 4 ( 0.00%) PlaceElem::Downcast(Some(adt_def.variants[variant_index].name), variant_index), . ) 4 ( 0.00%) } . . pub fn mk_place_downcast_unnamed( . self, . place: Place<'tcx>, . variant_index: VariantIdx, . ) -> Place<'tcx> { . self.mk_place_elem(place, PlaceElem::Downcast(None, variant_index)) . } -- line 2496 ---------------------------------------- -- line 2497 ---------------------------------------- . . pub fn mk_place_index(self, place: Place<'tcx>, index: Local) -> Place<'tcx> { . self.mk_place_elem(place, PlaceElem::Index(index)) . } . . /// This method copies `Place`'s projection, add an element and reintern it. Should not be used . /// to build a full `Place` it's just a convenient way to grab a projection and modify it in . /// flight. 36 ( 0.00%) pub fn mk_place_elem(self, place: Place<'tcx>, elem: PlaceElem<'tcx>) -> Place<'tcx> { . let mut projection = place.projection.to_vec(); . projection.push(elem); . . Place { local: place.local, projection: self.intern_place_elems(&projection) } 40 ( 0.00%) } . 938 ( 0.00%) pub fn intern_poly_existential_predicates( . self, . eps: &[ty::Binder<'tcx, ExistentialPredicate<'tcx>>], . ) -> &'tcx List>> { 134 ( 0.00%) assert!(!eps.is_empty()); . assert!( . eps.array_windows() 70 ( 0.00%) .all(|[a, b]| a.skip_binder().stable_cmp(self, &b.skip_binder()) . != Ordering::Greater) . ); 536 ( 0.00%) self._intern_poly_existential_predicates(eps) 1,072 ( 0.00%) } . . pub fn intern_predicates(self, preds: &[Predicate<'tcx>]) -> &'tcx List> { . // FIXME consider asking the input slice to be sorted to avoid . // re-interning permutations, in which case that would be asserted . // here. 420 ( 0.00%) if preds.is_empty() { . // The macro-generated method below asserts we don't intern an empty slice. . List::empty() . } else { 48 ( 0.00%) self._intern_predicates(preds) . } 744 ( 0.00%) } . . pub fn intern_type_list(self, ts: &[Ty<'tcx>]) -> &'tcx List> { 1,599 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_type_list(ts) } 34 ( 0.00%) } . . pub fn intern_substs(self, ts: &[GenericArg<'tcx>]) -> &'tcx List> { 29,442 ( 0.01%) if ts.is_empty() { List::empty() } else { self._intern_substs(ts) } 2,940 ( 0.00%) } . . pub fn intern_projs(self, ps: &[ProjectionKind]) -> &'tcx List { . if ps.is_empty() { List::empty() } else { self._intern_projs(ps) } . } . . pub fn intern_place_elems(self, ts: &[PlaceElem<'tcx>]) -> &'tcx List> { 385 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_place_elems(ts) } 130 ( 0.00%) } . . pub fn intern_canonical_var_infos( . self, . ts: &[CanonicalVarInfo<'tcx>], . ) -> CanonicalVarInfos<'tcx> { 1,183 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_canonical_var_infos(ts) } 10 ( 0.00%) } . . pub fn intern_bound_variable_kinds( . self, . ts: &[ty::BoundVariableKind], . ) -> &'tcx List { 493 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_bound_variable_kinds(ts) } 726 ( 0.00%) } . . pub fn mk_fn_sig( . self, . inputs: I, . output: I::Item, . c_variadic: bool, . unsafety: hir::Unsafety, . abi: abi::Abi, . ) -> , ty::FnSig<'tcx>>>::Output . where . I: Iterator, ty::FnSig<'tcx>>>, . { . inputs.chain(iter::once(output)).intern_with(|xs| ty::FnSig { 136 ( 0.00%) inputs_and_output: self.intern_type_list(xs), 34 ( 0.00%) c_variadic, 44 ( 0.00%) unsafety, 48 ( 0.00%) abi, . }) . } . . pub fn mk_poly_existential_predicates< . I: InternAs< . [ty::Binder<'tcx, ExistentialPredicate<'tcx>>], . &'tcx List>>, . >, . >( . self, . iter: I, . ) -> I::Output { 514 ( 0.00%) iter.intern_with(|xs| self.intern_poly_existential_predicates(xs)) . } . . pub fn mk_predicates], &'tcx List>>>( . self, . iter: I, . ) -> I::Output { . iter.intern_with(|xs| self.intern_predicates(xs)) . } . . pub fn mk_type_list], &'tcx List>>>(self, iter: I) -> I::Output { 437 ( 0.00%) iter.intern_with(|xs| self.intern_type_list(xs)) . } . . pub fn mk_substs], &'tcx List>>>( . self, . iter: I, . ) -> I::Output { 88,788 ( 0.04%) iter.intern_with(|xs| self.intern_substs(xs)) . } . . pub fn mk_place_elems], &'tcx List>>>( . self, . iter: I, . ) -> I::Output { . iter.intern_with(|xs| self.intern_place_elems(xs)) . } . 814 ( 0.00%) pub fn mk_substs_trait(self, self_ty: Ty<'tcx>, rest: &[GenericArg<'tcx>]) -> SubstsRef<'tcx> { . self.mk_substs(iter::once(self_ty.into()).chain(rest.iter().cloned())) 1,628 ( 0.00%) } . . pub fn mk_bound_variable_kinds< . I: InternAs<[ty::BoundVariableKind], &'tcx List>, . >( . self, . iter: I, . ) -> I::Output { 3,052 ( 0.00%) iter.intern_with(|xs| self.intern_bound_variable_kinds(xs)) . } . . /// Walks upwards from `id` to find a node which might change lint levels with attributes. . /// It stops at `bound` and just returns it if reached. 6,202 ( 0.00%) pub fn maybe_lint_level_root_bounded(self, mut id: HirId, bound: HirId) -> HirId { 6,202 ( 0.00%) let hir = self.hir(); . loop { 11,514 ( 0.01%) if id == bound { . return bound; . } . 14,760 ( 0.01%) if hir.attrs(id).iter().any(|attr| Level::from_symbol(attr.name_or_empty()).is_some()) { . return id; . } . let next = hir.get_parent_node(id); 8,856 ( 0.00%) if next == id { . bug!("lint traversal reached the root of the crate"); . } . id = next; . } 8,860 ( 0.00%) } . 512 ( 0.00%) pub fn lint_level_at_node( . self, . lint: &'static Lint, . mut id: hir::HirId, . ) -> (Level, LintLevelSource) { . let sets = self.lint_levels(()); . loop { 1,877 ( 0.00%) if let Some(pair) = sets.level_and_source(lint, id, self.sess) { . return pair; . } 109 ( 0.00%) let next = self.hir().get_parent_node(id); 327 ( 0.00%) if next == id { . bug!("lint traversal reached the root of the crate"); . } . id = next; . } 512 ( 0.00%) } . 70 ( 0.00%) pub fn struct_span_lint_hir( . self, . lint: &'static Lint, . hir_id: HirId, . span: impl Into, . decorate: impl for<'a> FnOnce(LintDiagnosticBuilder<'a>), . ) { 78 ( 0.00%) let (level, src) = self.lint_level_at_node(lint, hir_id); 45 ( 0.00%) struct_lint_level(self.sess, lint, level, src, Some(span.into()), decorate); 40 ( 0.00%) } . . pub fn struct_lint_node( . self, . lint: &'static Lint, . id: HirId, . decorate: impl for<'a> FnOnce(LintDiagnosticBuilder<'a>), . ) { . let (level, src) = self.lint_level_at_node(lint, id); . struct_lint_level(self.sess, lint, level, src, None, decorate); . } . 273 ( 0.00%) pub fn in_scope_traits(self, id: HirId) -> Option<&'tcx [TraitCandidate]> { 78 ( 0.00%) let map = self.in_scope_traits_map(id.owner)?; . let candidates = map.get(&id.local_id)?; 78 ( 0.00%) Some(&*candidates) 312 ( 0.00%) } . 1,092 ( 0.00%) pub fn named_region(self, id: HirId) -> Option { . debug!(?id, "named_region"); . self.named_region_map(id.owner).and_then(|map| map.get(&id.local_id).cloned()) 1,404 ( 0.00%) } . . pub fn is_late_bound(self, id: HirId) -> bool { . self.is_late_bound_map(id.owner) . .map_or(false, |(owner, set)| owner == id.owner && set.contains(&id.local_id)) . } . 651 ( 0.00%) pub fn object_lifetime_defaults(self, id: HirId) -> Option> { . self.object_lifetime_defaults_map(id.owner) 837 ( 0.00%) } . 513 ( 0.00%) pub fn late_bound_vars(self, id: HirId) -> &'tcx List { . self.mk_bound_variable_kinds( . self.late_bound_vars_map(id.owner) . .and_then(|map| map.get(&id.local_id).cloned()) . .unwrap_or_else(|| { . bug!("No bound vars found for {:?} ({:?})", self.hir().node_to_string(id), id) . }) . .iter(), . ) 513 ( 0.00%) } . . pub fn lifetime_scope(self, id: HirId) -> Option { . self.lifetime_scope_map(id.owner).and_then(|mut map| map.remove(&id.local_id)) . } . . /// Whether the `def_id` counts as const fn in the current crate, considering all active . /// feature gates 40 ( 0.00%) pub fn is_const_fn(self, def_id: DefId) -> bool { 4 ( 0.00%) if self.is_const_fn_raw(def_id) { 2 ( 0.00%) match self.lookup_const_stability(def_id) { 4 ( 0.00%) Some(stability) if stability.level.is_unstable() => { . // has a `rustc_const_unstable` attribute, check whether the user enabled the . // corresponding feature gate. 2 ( 0.00%) self.features() . .declared_lib_features . .iter() . .any(|&(sym, _)| sym == stability.feature) . } . // functions without const stability are either stable user written . // const fn or the user is using feature gates and we thus don't . // care what they do . _ => true, . } . } else { . false . } 36 ( 0.00%) } . } . . impl<'tcx> TyCtxtAt<'tcx> { . /// Constructs a `TyKind::Error` type and registers a `delay_span_bug` to ensure it gets used. . #[track_caller] . pub fn ty_error(self) -> Ty<'tcx> { . self.tcx.ty_error_with_message(self.span, "TyKind::Error constructed but no error reported") . } -- line 2759 ---------------------------------------- -- line 2774 ---------------------------------------- . } . . impl InternAs<[T], R> for I . where . E: InternIteratorElement, . I: Iterator, . { . type Output = E::Output; 66,440 ( 0.03%) fn intern_with(self, f: F) -> Self::Output . where . F: FnOnce(&[T]) -> R, . { 70,201 ( 0.03%) E::intern_with(self, f) 67,482 ( 0.03%) } . } . . pub trait InternIteratorElement: Sized { . type Output; . fn intern_with, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output; . } . . impl InternIteratorElement for T { . type Output = R; 8,147 ( 0.00%) fn intern_with, F: FnOnce(&[T]) -> R>( . mut iter: I, . f: F, . ) -> Self::Output { . // This code is hot enough that it's worth specializing for the most . // common length lists, to avoid the overhead of `SmallVec` creation. . // Lengths 0, 1, and 2 typically account for ~95% of cases. If . // `size_hint` is incorrect a panic will occur via an `unwrap` or an . // `assert`. 42,039 ( 0.02%) match iter.size_hint() { . (0, Some(0)) => { . assert!(iter.next().is_none()); . f(&[]) . } . (1, Some(1)) => { . let t0 = iter.next().unwrap(); 1 ( 0.00%) assert!(iter.next().is_none()); 6,414 ( 0.00%) f(&[t0]) . } . (2, Some(2)) => { . let t0 = iter.next().unwrap(); . let t1 = iter.next().unwrap(); 10 ( 0.00%) assert!(iter.next().is_none()); 3,819 ( 0.00%) f(&[t0, t1]) . } 96 ( 0.00%) _ => f(&iter.collect::>()), . } 6,567 ( 0.00%) } . } . . impl<'a, T, R> InternIteratorElement for &'a T . where . T: Clone + 'a, . { . type Output = R; 315 ( 0.00%) fn intern_with, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output { . // This code isn't hot. . f(&iter.cloned().collect::>()) 252 ( 0.00%) } . } . . impl InternIteratorElement for Result { . type Output = Result; 12,007 ( 0.01%) fn intern_with, F: FnOnce(&[T]) -> R>( . mut iter: I, . f: F, . ) -> Self::Output { . // This code is hot enough that it's worth specializing for the most . // common length lists, to avoid the overhead of `SmallVec` creation. . // Lengths 0, 1, and 2 typically account for ~95% of cases. If . // `size_hint` is incorrect a panic will occur via an `unwrap` or an . // `assert`, unless a failure happens first, in which case the result . // will be an error anyway. 8,930 ( 0.00%) Ok(match iter.size_hint() { . (0, Some(0)) => { . assert!(iter.next().is_none()); . f(&[]) . } . (1, Some(1)) => { 300 ( 0.00%) let t0 = iter.next().unwrap()?; . assert!(iter.next().is_none()); 1,235 ( 0.00%) f(&[t0]) . } . (2, Some(2)) => { 8 ( 0.00%) let t0 = iter.next().unwrap()?; 8 ( 0.00%) let t1 = iter.next().unwrap()?; 12 ( 0.00%) assert!(iter.next().is_none()); 658 ( 0.00%) f(&[t0, t1]) . } 235 ( 0.00%) _ => f(&iter.collect::, _>>()?), . }) 13,251 ( 0.01%) } . } . . // We are comparing types with different invariant lifetimes, so `ptr::eq` . // won't work for us. . fn ptr_eq(t: *const T, u: *const U) -> bool { 35,168 ( 0.02%) t as *const () == u as *const () . } . . pub fn provide(providers: &mut ty::query::Providers) { 2 ( 0.00%) providers.in_scope_traits_map = . |tcx, id| tcx.hir_crate(()).owners[id].as_ref().map(|owner_info| &owner_info.trait_map); 3 ( 0.00%) providers.resolutions = |tcx, ()| &tcx.untracked_resolutions; 2 ( 0.00%) providers.module_reexports = . |tcx, id| tcx.resolutions(()).reexport_map.get(&id).map(|v| &v[..]); 2 ( 0.00%) providers.crate_name = |tcx, id| { 1 ( 0.00%) assert_eq!(id, LOCAL_CRATE); 1 ( 0.00%) tcx.crate_name . }; 2 ( 0.00%) providers.maybe_unused_trait_import = . |tcx, id| tcx.resolutions(()).maybe_unused_trait_imports.contains(&id); 2 ( 0.00%) providers.maybe_unused_extern_crates = . |tcx, ()| &tcx.resolutions(()).maybe_unused_extern_crates[..]; 2 ( 0.00%) providers.names_imported_by_glob_use = |tcx, id| { . tcx.arena.alloc(tcx.resolutions(()).glob_map.get(&id).cloned().unwrap_or_default()) . }; . 11 ( 0.00%) providers.lookup_stability = |tcx, id| tcx.stability().local_stability(id.expect_local()); 2 ( 0.00%) providers.lookup_const_stability = . |tcx, id| tcx.stability().local_const_stability(id.expect_local()); 2 ( 0.00%) providers.lookup_deprecation_entry = 680 ( 0.00%) |tcx, id| tcx.stability().local_deprecation_entry(id.expect_local()); 2 ( 0.00%) providers.extern_mod_stmt_cnum = . |tcx, id| tcx.resolutions(()).extern_crate_map.get(&id).cloned(); 3 ( 0.00%) providers.output_filenames = |tcx, ()| tcx.output_filenames.clone(); 3 ( 0.00%) providers.features_query = |tcx, ()| tcx.sess.features_untracked(); 2 ( 0.00%) providers.is_panic_runtime = |tcx, cnum| { . assert_eq!(cnum, LOCAL_CRATE); . tcx.sess.contains_name(tcx.hir().krate_attrs(), sym::panic_runtime) . }; 2 ( 0.00%) providers.is_compiler_builtins = |tcx, cnum| { . assert_eq!(cnum, LOCAL_CRATE); . tcx.sess.contains_name(tcx.hir().krate_attrs(), sym::compiler_builtins) . }; 2 ( 0.00%) providers.has_panic_handler = |tcx, cnum| { 1 ( 0.00%) assert_eq!(cnum, LOCAL_CRATE); . // We want to check if the panic handler was defined in this crate 3 ( 0.00%) tcx.lang_items().panic_impl().map_or(false, |did| did.is_local()) . }; . } 114,973 ( 0.06%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/vec/mod.rs -------------------------------------------------------------------------------- Ir -- line 417 ---------------------------------------- . /// # #![allow(unused_mut)] . /// let mut vec: Vec = Vec::new(); . /// ``` . #[inline] . #[rustc_const_stable(feature = "const_vec_new", since = "1.39.0")] . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use] . pub const fn new() -> Self { 163,479 ( 0.08%) Vec { buf: RawVec::NEW, len: 0 } 13 ( 0.00%) } . . /// Constructs a new, empty `Vec` with the specified capacity. . /// . /// The vector will be able to hold exactly `capacity` elements without . /// reallocating. If `capacity` is 0, the vector will not allocate. . /// . /// It is important to note that although the returned vector has the . /// *capacity* specified, the vector will have a zero *length*. For an -- line 434 ---------------------------------------- -- line 601 ---------------------------------------- . /// vec.push(11); . /// assert_eq!(vec.len(), 11); . /// assert!(vec.capacity() >= 11); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[inline] . #[unstable(feature = "allocator_api", issue = "32838")] . pub fn with_capacity_in(capacity: usize, alloc: A) -> Self { 69,178 ( 0.03%) Vec { buf: RawVec::with_capacity_in(capacity, alloc), len: 0 } . } . . /// Creates a `Vec` directly from the raw components of another vector. . /// . /// # Safety . /// . /// This is highly unsafe, due to the number of invariants that aren't . /// checked: -- line 617 ---------------------------------------- -- line 677 ---------------------------------------- . /// // Put everything back together into a Vec . /// let rebuilt = Vec::from_raw_parts_in(p, len, cap, alloc.clone()); . /// assert_eq!(rebuilt, [4, 5, 6]); . /// } . /// ``` . #[inline] . #[unstable(feature = "allocator_api", issue = "32838")] . pub unsafe fn from_raw_parts_in(ptr: *mut T, length: usize, capacity: usize, alloc: A) -> Self { 3,096 ( 0.00%) unsafe { Vec { buf: RawVec::from_raw_parts_in(ptr, capacity, alloc), len: length } } . } . . /// Decomposes a `Vec` into its raw components. . /// . /// Returns the raw pointer to the underlying data, the length of . /// the vector (in elements), and the allocated capacity of the . /// data (in elements). These are the same arguments in the same . /// order as the arguments to [`from_raw_parts`]. -- line 693 ---------------------------------------- -- line 778 ---------------------------------------- . /// . /// ``` . /// let vec: Vec = Vec::with_capacity(10); . /// assert_eq!(vec.capacity(), 10); . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn capacity(&self) -> usize { 95,254 ( 0.05%) self.buf.capacity() . } . . /// Reserves capacity for at least `additional` more elements to be inserted . /// in the given `Vec`. The collection may reserve more space to avoid . /// frequent reallocations. After calling `reserve`, capacity will be . /// greater than or equal to `self.len() + additional`. Does nothing if . /// capacity is already sufficient. . /// -- line 794 ---------------------------------------- -- line 801 ---------------------------------------- . /// ``` . /// let mut vec = vec![1]; . /// vec.reserve(10); . /// assert!(vec.capacity() >= 11); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn reserve(&mut self, additional: usize) { 9,654 ( 0.00%) self.buf.reserve(self.len, additional); . } . . /// Reserves the minimum capacity for exactly `additional` more elements to . /// be inserted in the given `Vec`. After calling `reserve_exact`, . /// capacity will be greater than or equal to `self.len() + additional`. . /// Does nothing if the capacity is already sufficient. . /// . /// Note that the allocator may give the collection more space than it -- line 817 ---------------------------------------- -- line 829 ---------------------------------------- . /// ``` . /// let mut vec = vec![1]; . /// vec.reserve_exact(10); . /// assert!(vec.capacity() >= 11); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn reserve_exact(&mut self, additional: usize) { 1,093 ( 0.00%) self.buf.reserve_exact(self.len, additional); . } . . /// Tries to reserve capacity for at least `additional` more elements to be inserted . /// in the given `Vec`. The collection may reserve more space to avoid . /// frequent reallocations. After calling `try_reserve`, capacity will be . /// greater than or equal to `self.len() + additional`. Does nothing if . /// capacity is already sufficient. . /// -- line 845 ---------------------------------------- -- line 930 ---------------------------------------- . /// assert!(vec.capacity() >= 3); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn shrink_to_fit(&mut self) { . // The capacity is never less than the length, and there's nothing to do when . // they are equal, so we can avoid the panic case in `RawVec::shrink_to_fit` . // by only calling it with a greater capacity. 1,625 ( 0.00%) if self.capacity() > self.len { 203 ( 0.00%) self.buf.shrink_to_fit(self.len); . } . } . . /// Shrinks the capacity of the vector with a lower bound. . /// . /// The capacity will remain at least as large as both the length . /// and the supplied value. . /// -- line 947 ---------------------------------------- -- line 990 ---------------------------------------- . /// let slice = vec.into_boxed_slice(); . /// assert_eq!(slice.into_vec().capacity(), 3); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn into_boxed_slice(mut self) -> Box<[T], A> { . unsafe { . self.shrink_to_fit(); 431 ( 0.00%) let me = ManuallyDrop::new(self); . let buf = ptr::read(&me.buf); . let len = me.len(); . buf.into_box(len).assume_init() . } . } . . /// Shortens the vector, keeping the first `len` elements and dropping . /// the rest. -- line 1006 ---------------------------------------- -- line 1040 ---------------------------------------- . /// let mut vec = vec![1, 2, 3]; . /// vec.truncate(0); . /// assert_eq!(vec, []); . /// ``` . /// . /// [`clear`]: Vec::clear . /// [`drain`]: Vec::drain . #[stable(feature = "rust1", since = "1.0.0")] 116,452 ( 0.06%) pub fn truncate(&mut self, len: usize) { . // This is safe because: . // . // * the slice passed to `drop_in_place` is valid; the `len > self.len` . // case avoids creating an invalid slice, and . // * the `len` of the vector is shrunk before calling `drop_in_place`, . // such that no value will be dropped twice in case `drop_in_place` . // were to panic once (if it panics twice, the program aborts). . unsafe { . // Note: It's intentional that this is `>` and not `>=`. . // Changing it to `>=` has negative performance . // implications in some cases. See #78884 for more. 72,113 ( 0.04%) if len > self.len { . return; . } . let remaining_len = self.len - len; . let s = ptr::slice_from_raw_parts_mut(self.as_mut_ptr().add(len), remaining_len); 28,404 ( 0.01%) self.len = len; 251 ( 0.00%) ptr::drop_in_place(s); . } 139,742 ( 0.07%) } . . /// Extracts a slice containing the entire vector. . /// . /// Equivalent to `&s[..]`. . /// . /// # Examples . /// . /// ``` -- line 1076 ---------------------------------------- -- line 1126 ---------------------------------------- . /// ``` . /// . /// [`as_mut_ptr`]: Vec::as_mut_ptr . #[stable(feature = "vec_as_ptr", since = "1.37.0")] . #[inline] . pub fn as_ptr(&self) -> *const T { . // We shadow the slice method of the same name to avoid going through . // `deref`, which creates an intermediate reference. 269,524 ( 0.13%) let ptr = self.buf.ptr(); . unsafe { . assume(!ptr.is_null()); . } . ptr . } . . /// Returns an unsafe mutable pointer to the vector's buffer. . /// -- line 1142 ---------------------------------------- -- line 1162 ---------------------------------------- . /// } . /// assert_eq!(&*x, &[0, 1, 2, 3]); . /// ``` . #[stable(feature = "vec_as_ptr", since = "1.37.0")] . #[inline] . pub fn as_mut_ptr(&mut self) -> *mut T { . // We shadow the slice method of the same name to avoid going through . // `deref_mut`, which creates an intermediate reference. 605,309 ( 0.30%) let ptr = self.buf.ptr(); . unsafe { . assume(!ptr.is_null()); . } . ptr . } . . /// Returns a reference to the underlying allocator. . #[unstable(feature = "allocator_api", issue = "32838")] -- line 1178 ---------------------------------------- -- line 1259 ---------------------------------------- . /// . /// Normally, here, one would use [`clear`] instead to correctly drop . /// the contents and thus not leak memory. . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] . pub unsafe fn set_len(&mut self, new_len: usize) { . debug_assert!(new_len <= self.capacity()); . 103,275 ( 0.05%) self.len = new_len; 42 ( 0.00%) } . . /// Removes an element from the vector and returns it. . /// . /// The removed element is replaced by the last element of the vector. . /// . /// This does not preserve ordering, but is *O*(1). . /// If you need to preserve the element order, use [`remove`] instead. . /// -- line 1276 ---------------------------------------- -- line 1329 ---------------------------------------- . /// let mut vec = vec![1, 2, 3]; . /// vec.insert(1, 4); . /// assert_eq!(vec, [1, 4, 2, 3]); . /// vec.insert(4, 5); . /// assert_eq!(vec, [1, 4, 2, 3, 5]); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] 189 ( 0.00%) pub fn insert(&mut self, index: usize, element: T) { . #[cold] . #[inline(never)] . fn assert_failed(index: usize, len: usize) -> ! { . panic!("insertion index (is {}) should be <= len (is {})", index, len); . } . 52 ( 0.00%) let len = self.len(); 102 ( 0.00%) if index > len { . assert_failed(index, len); . } . . // space for the new element 240 ( 0.00%) if len == self.buf.capacity() { . self.reserve(1); . } . . unsafe { . // infallible . // The spot to put the new value . { . let p = self.as_mut_ptr().add(index); . // Shift everything over to make space. (Duplicating the . // `index`th element into two consecutive places.) 285 ( 0.00%) ptr::copy(p, p.offset(1), len - index); . // Write it in, overwriting the first copy of the `index`th . // element. . ptr::write(p, element); . } 240 ( 0.00%) self.set_len(len + 1); . } 162 ( 0.00%) } . . /// Removes and returns the element at position `index` within the vector, . /// shifting all elements after it to the left. . /// . /// Note: Because this shifts over the remaining elements, it has a . /// worst-case performance of *O*(*n*). If you don't need the order of elements . /// to be preserved, use [`swap_remove`] instead. If you'd like to remove . /// elements from the beginning of the `Vec`, consider using -- line 1376 ---------------------------------------- -- line 1395 ---------------------------------------- . pub fn remove(&mut self, index: usize) -> T { . #[cold] . #[inline(never)] . #[track_caller] . fn assert_failed(index: usize, len: usize) -> ! { . panic!("removal index (is {}) should be < len (is {})", index, len); . } . 60 ( 0.00%) let len = self.len(); 224 ( 0.00%) if index >= len { . assert_failed(index, len); . } . unsafe { . // infallible . let ret; . { . // the place we are taking from. . let ptr = self.as_mut_ptr().add(index); . // copy it out, unsafely having a copy of the value on . // the stack and in the vector at the same time. 256 ( 0.00%) ret = ptr::read(ptr); . . // Shift everything down to fill in that spot. 124 ( 0.00%) ptr::copy(ptr.offset(1), ptr, len - index - 1); . } 60 ( 0.00%) self.set_len(len - 1); . ret . } . } . . /// Retains only the elements specified by the predicate. . /// . /// In other words, remove all elements `e` such that `f(&e)` returns `false`. . /// This method operates in place, visiting each element exactly once in the -- line 1428 ---------------------------------------- -- line 1442 ---------------------------------------- . /// ``` . /// let mut vec = vec![1, 2, 3, 4, 5]; . /// let keep = [false, true, true, false, true]; . /// let mut iter = keep.iter(); . /// vec.retain(|_| *iter.next().unwrap()); . /// assert_eq!(vec, [2, 3, 5]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] 6,359 ( 0.00%) pub fn retain(&mut self, mut f: F) . where . F: FnMut(&T) -> bool, . { 624 ( 0.00%) self.retain_mut(|elem| f(elem)); 6,224 ( 0.00%) } . . /// Retains only the elements specified by the predicate, passing a mutable reference to it. . /// . /// In other words, remove all elements `e` such that `f(&mut e)` returns `false`. . /// This method operates in place, visiting each element exactly once in the . /// original order, and preserves the order of the retained elements. . /// . /// # Examples -- line 1463 ---------------------------------------- -- line 1474 ---------------------------------------- . /// }); . /// assert_eq!(vec, [2, 3, 4]); . /// ``` . #[unstable(feature = "vec_retain_mut", issue = "90829")] . pub fn retain_mut(&mut self, mut f: F) . where . F: FnMut(&mut T) -> bool, . { 921 ( 0.00%) let original_len = self.len(); . // Avoid double drop if the drop guard is not executed, . // since we may make some holes during the process. . unsafe { self.set_len(0) }; . . // Vec: [Kept, Kept, Hole, Hole, Hole, Hole, Unchecked, Unchecked] . // |<- processed len ->| ^- next to check . // |<- deleted cnt ->| . // |<- original_len ->| -- line 1490 ---------------------------------------- -- line 1499 ---------------------------------------- . v: &'a mut Vec, . processed_len: usize, . deleted_cnt: usize, . original_len: usize, . } . . impl Drop for BackshiftOnDrop<'_, T, A> { . fn drop(&mut self) { 724 ( 0.00%) if self.deleted_cnt > 0 { . // SAFETY: Trailing unchecked items must be valid since we never touch them. . unsafe { . ptr::copy( . self.v.as_ptr().add(self.processed_len), 363 ( 0.00%) self.v.as_mut_ptr().add(self.processed_len - self.deleted_cnt), . self.original_len - self.processed_len, . ); . } . } . // SAFETY: After filling holes, all items are in contiguous memory. . unsafe { 2 ( 0.00%) self.v.set_len(self.original_len - self.deleted_cnt); . } . } . } . . let mut g = BackshiftOnDrop { v: self, processed_len: 0, deleted_cnt: 0, original_len }; . . fn process_loop( . original_len: usize, . f: &mut F, . g: &mut BackshiftOnDrop<'_, T, A>, . ) where . F: FnMut(&mut T) -> bool, . { 12,352 ( 0.01%) while g.processed_len != original_len { . // SAFETY: Unchecked element must be valid. . let cur = unsafe { &mut *g.v.as_mut_ptr().add(g.processed_len) }; 3,356 ( 0.00%) if !f(cur) { . // Advance early to avoid double drop if `drop_in_place` panicked. 114 ( 0.00%) g.processed_len += 1; 52 ( 0.00%) g.deleted_cnt += 1; . // SAFETY: We never touch this element again after dropped. 50 ( 0.00%) unsafe { ptr::drop_in_place(cur) }; . // We already advanced the counter. . if DELETED { . continue; . } else { . break; . } . } . if DELETED { . // SAFETY: `deleted_cnt` > 0, so the hole slot must not overlap with current element. . // We use copy for move, and never touch this element again. . unsafe { 432 ( 0.00%) let hole_slot = g.v.as_mut_ptr().add(g.processed_len - g.deleted_cnt); . ptr::copy_nonoverlapping(cur, hole_slot, 1); . } . } 288 ( 0.00%) g.processed_len += 1; . } . } . . // Stage 1: Nothing was deleted. . process_loop::(original_len, &mut f, &mut g); . . // Stage 2: Some elements were deleted. . process_loop::(original_len, &mut f, &mut g); -- line 1565 ---------------------------------------- -- line 1606 ---------------------------------------- . /// ``` . /// let mut vec = vec!["foo", "bar", "Bar", "baz", "bar"]; . /// . /// vec.dedup_by(|a, b| a.eq_ignore_ascii_case(b)); . /// . /// assert_eq!(vec, ["foo", "bar", "baz", "bar"]); . /// ``` . #[stable(feature = "dedup_by", since = "1.16.0")] 1,407 ( 0.00%) pub fn dedup_by(&mut self, mut same_bucket: F) . where . F: FnMut(&mut T, &mut T) -> bool, . { 201 ( 0.00%) let len = self.len(); 560 ( 0.00%) if len <= 1 { . return; . } . . /* INVARIANT: vec.len() > read >= write > write-1 >= 0 */ . struct FillGapOnDrop<'a, T, A: core::alloc::Allocator> { . /* Offset of the element we want to check if it is duplicate */ . read: usize, . -- line 1627 ---------------------------------------- -- line 1670 ---------------------------------------- . let ptr = gap.vec.as_mut_ptr(); . . /* Drop items while going through Vec, it should be more efficient than . * doing slice partition_dedup + truncate */ . . /* SAFETY: Because of the invariant, read_ptr, prev_ptr and write_ptr . * are always in-bounds and read_ptr never aliases prev_ptr */ . unsafe { 84 ( 0.00%) while gap.read < len { . let read_ptr = ptr.add(gap.read); . let prev_ptr = ptr.add(gap.write.wrapping_sub(1)); . 52 ( 0.00%) if same_bucket(&mut *read_ptr, &mut *prev_ptr) { . // Increase `gap.read` now since the drop may panic. . gap.read += 1; . /* We have found duplicate, drop it in-place */ . ptr::drop_in_place(read_ptr); . } else { . let write_ptr = ptr.add(gap.write); . . /* Because `read_ptr` can be equal to `write_ptr`, we either . * have to use `copy` or conditional `copy_nonoverlapping`. . * Looks like the first option is faster. */ . ptr::copy(read_ptr, write_ptr, 1); . . /* We have filled that place, so go further */ 28 ( 0.00%) gap.write += 1; . gap.read += 1; . } . } . . /* Technically we could let `gap` clean up with its Drop, but . * when `same_bucket` is guaranteed to not panic, this bloats a little . * the codegen, so we just do it manually */ . gap.vec.set_len(gap.write); . mem::forget(gap); . } 1,608 ( 0.00%) } . . /// Appends an element to the back of a collection. . /// . /// # Panics . /// . /// Panics if the new capacity exceeds `isize::MAX` bytes. . /// . /// # Examples -- line 1715 ---------------------------------------- -- line 1717 ---------------------------------------- . /// ``` . /// let mut vec = vec![1, 2]; . /// vec.push(3); . /// assert_eq!(vec, [1, 2, 3]); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] 35 ( 0.00%) pub fn push(&mut self, value: T) { . // This will panic or abort if we would allocate > isize::MAX bytes . // or if the length increment would overflow for zero-sized types. 1,471,149 ( 0.72%) if self.len == self.buf.capacity() { 54,654 ( 0.03%) self.buf.reserve_for_push(self.len); . } . unsafe { 23,109 ( 0.01%) let end = self.as_mut_ptr().add(self.len); . ptr::write(end, value); 1,587,083 ( 0.78%) self.len += 1; . } 28 ( 0.00%) } . . /// Removes the last element from a vector and returns it, or [`None`] if it . /// is empty. . /// . /// If you'd like to pop the first element, consider using . /// [`VecDeque::pop_front`] instead. . /// . /// [`VecDeque::pop_front`]: crate::collections::VecDeque::pop_front -- line 1744 ---------------------------------------- -- line 1748 ---------------------------------------- . /// ``` . /// let mut vec = vec![1, 2, 3]; . /// assert_eq!(vec.pop(), Some(3)); . /// assert_eq!(vec, [1, 2]); . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn pop(&mut self) -> Option { 53,410 ( 0.03%) if self.len == 0 { 18 ( 0.00%) None . } else { . unsafe { 41,669 ( 0.02%) self.len -= 1; 5,118 ( 0.00%) Some(ptr::read(self.as_ptr().add(self.len()))) . } . } . } . . /// Moves all the elements of `other` into `Self`, leaving `other` empty. . /// . /// # Panics . /// -- line 1769 ---------------------------------------- -- line 1776 ---------------------------------------- . /// let mut vec2 = vec![4, 5, 6]; . /// vec.append(&mut vec2); . /// assert_eq!(vec, [1, 2, 3, 4, 5, 6]); . /// assert_eq!(vec2, []); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[inline] . #[stable(feature = "append", since = "1.4.0")] 77 ( 0.00%) pub fn append(&mut self, other: &mut Self) { . unsafe { . self.append_elements(other.as_slice() as _); . other.set_len(0); . } 66 ( 0.00%) } . . /// Appends elements to `Self` from other buffer. . #[cfg(not(no_global_oom_handling))] . #[inline] . unsafe fn append_elements(&mut self, other: *const [T]) { . let count = unsafe { (*other).len() }; . self.reserve(count); 1,122 ( 0.00%) let len = self.len(); . unsafe { ptr::copy_nonoverlapping(other as *const T, self.as_mut_ptr().add(len), count) }; 24,005 ( 0.01%) self.len += count; . } . . /// Creates a draining iterator that removes the specified range in the vector . /// and yields the removed items. . /// . /// When the iterator **is** dropped, all elements in the range are removed . /// from the vector, even if the iterator was not fully consumed. If the . /// iterator **is not** dropped (with [`mem::forget`] for example), it is -- line 1807 ---------------------------------------- -- line 1834 ---------------------------------------- . // When the Drain is first created, it shortens the length of . // the source vector to make sure no uninitialized or moved-from elements . // are accessible at all if the Drain's destructor never gets to run. . // . // Drain will ptr::read out the values to remove. . // When finished, remaining tail of the vec is copied back to cover . // the hole, and the vector length is restored to the new length. . // 1,706 ( 0.00%) let len = self.len(); . let Range { start, end } = slice::range(range, ..len); . . unsafe { . // set self.vec length's to start, to be safe in case Drain is leaked . self.set_len(start); . // Use the borrow in the IterMut to indicate borrowing behavior of the . // whole Drain iterator (like &mut T). 14 ( 0.00%) let range_slice = slice::from_raw_parts_mut(self.as_mut_ptr().add(start), end - start); 365 ( 0.00%) Drain { . tail_start: end, 14 ( 0.00%) tail_len: len - end, . iter: range_slice.iter(), . vec: NonNull::from(self), . } . } . } . . /// Clears the vector, removing all values. . /// -- line 1861 ---------------------------------------- -- line 1869 ---------------------------------------- . /// . /// v.clear(); . /// . /// assert!(v.is_empty()); . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn clear(&mut self) { 207,790 ( 0.10%) self.truncate(0) . } . . /// Returns the number of elements in the vector, also referred to . /// as its 'length'. . /// . /// # Examples . /// . /// ``` -- line 1885 ---------------------------------------- -- line 1900 ---------------------------------------- . /// let mut v = Vec::new(); . /// assert!(v.is_empty()); . /// . /// v.push(1); . /// assert!(!v.is_empty()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . pub fn is_empty(&self) -> bool { 21,917 ( 0.01%) self.len() == 0 . } . . /// Splits the collection into two at the given index. . /// . /// Returns a newly allocated vector containing the elements in the range . /// `[at, len)`. After the call, the original vector will be left containing . /// the elements `[0, at)` with its previous capacity unchanged. . /// -- line 1916 ---------------------------------------- -- line 1935 ---------------------------------------- . A: Clone, . { . #[cold] . #[inline(never)] . fn assert_failed(at: usize, len: usize) -> ! { . panic!("`at` split index (is {}) should be <= len (is {})", at, len); . } . 163 ( 0.00%) if at > self.len() { . assert_failed(at, self.len()); . } . 113 ( 0.00%) if at == 0 { . // the new vector can take over the original buffer and avoid the copy . return mem::replace( . self, . Vec::with_capacity_in(self.capacity(), self.allocator().clone()), . ); . } . . let other_len = self.len - at; -- line 1955 ---------------------------------------- -- line 1988 ---------------------------------------- . /// . /// let mut vec = vec![]; . /// let mut p = 1; . /// vec.resize_with(4, || { p *= 2; p }); . /// assert_eq!(vec, [2, 4, 8, 16]); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "vec_resize_with", since = "1.33.0")] 2,267 ( 0.00%) pub fn resize_with(&mut self, new_len: usize, f: F) . where . F: FnMut() -> T, . { 301 ( 0.00%) let len = self.len(); 602 ( 0.00%) if new_len > len { 1,844 ( 0.00%) self.extend_with(new_len - len, ExtendFunc(f)); . } else { . self.truncate(new_len); . } 1,966 ( 0.00%) } . . /// Consumes and leaks the `Vec`, returning a mutable reference to the contents, . /// `&'a mut [T]`. Note that the type `T` must outlive the chosen lifetime . /// `'a`. If the type has only static references, or none at all, then this . /// may be chosen to be `'static`. . /// . /// As of Rust 1.57, this method does not reallocate or shrink the `Vec`, . /// so the leaked allocation may include unused capacity that is not part -- line 2014 ---------------------------------------- -- line 2070 ---------------------------------------- . #[stable(feature = "vec_spare_capacity", since = "1.60.0")] . #[inline] . pub fn spare_capacity_mut(&mut self) -> &mut [MaybeUninit] { . // Note: . // This method is not implemented in terms of `split_at_spare_mut`, . // to prevent invalidation of pointers to the buffer. . unsafe { . slice::from_raw_parts_mut( 2 ( 0.00%) self.as_mut_ptr().add(self.len) as *mut MaybeUninit, 21 ( 0.00%) self.buf.capacity() - self.len, . ) . } . } . . /// Returns vector content as a slice of `T`, along with the remaining spare . /// capacity of the vector as a slice of `MaybeUninit`. . /// . /// The returned spare capacity slice can be used to fill the vector with data -- line 2087 ---------------------------------------- -- line 2193 ---------------------------------------- . /// assert_eq!(vec, [1, 2]); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "vec_resize", since = "1.5.0")] . pub fn resize(&mut self, new_len: usize, value: T) { . let len = self.len(); . . if new_len > len { 327 ( 0.00%) self.extend_with(new_len - len, ExtendElement(value)) . } else { . self.truncate(new_len); . } . } . . /// Clones and appends all elements in a slice to the `Vec`. . /// . /// Iterates over the slice `other`, clones each element, and then appends -- line 2209 ---------------------------------------- -- line 2291 ---------------------------------------- . fn last(mut self) -> T { . (self.0)() . } . } . . impl Vec { . #[cfg(not(no_global_oom_handling))] . /// Extend the vector by `n` values, using the given generator. 5,736 ( 0.00%) fn extend_with>(&mut self, n: usize, mut value: E) { . self.reserve(n); . . unsafe { 491 ( 0.00%) let mut ptr = self.as_mut_ptr().add(self.len()); . // Use SetLenOnDrop to work around bug where compiler . // might not realize the store through `ptr` through self.set_len() . // don't alias. . let mut local_len = SetLenOnDrop::new(&mut self.len); . . // Write all elements except the last one . for _ in 1..n { . ptr::write(ptr, value.next()); . ptr = ptr.offset(1); . // Increment the length in every step in case next() panics . local_len.increment_len(1); . } . 12,742 ( 0.01%) if n > 0 { . // We can write the last element directly without cloning needlessly . ptr::write(ptr, value.last()); . local_len.increment_len(1); . } . . // len set by scope guard . } 4,449 ( 0.00%) } . } . . impl Vec { . /// Removes consecutive repeated elements in the vector according to the . /// [`PartialEq`] trait implementation. . /// . /// If the vector is sorted, this removes all duplicates. . /// -- line 2333 ---------------------------------------- -- line 2338 ---------------------------------------- . /// . /// vec.dedup(); . /// . /// assert_eq!(vec, [1, 2, 3, 2]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] . pub fn dedup(&mut self) { 202 ( 0.00%) self.dedup_by(|a, b| a == b) . } . } . . //////////////////////////////////////////////////////////////////////////////// . // Internal methods and functions . //////////////////////////////////////////////////////////////////////////////// . . #[doc(hidden)] . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] 1,516 ( 0.00%) pub fn from_elem(elem: T, n: usize) -> Vec { 8,862 ( 0.00%) ::from_elem(elem, n, Global) 1,891 ( 0.00%) } . . #[doc(hidden)] . #[cfg(not(no_global_oom_handling))] . #[unstable(feature = "allocator_api", issue = "32838")] . pub fn from_elem_in(elem: T, n: usize, alloc: A) -> Vec { . ::from_elem(elem, n, alloc) . } . -- line 2367 ---------------------------------------- -- line 2424 ---------------------------------------- . // Common trait implementations for Vec . //////////////////////////////////////////////////////////////////////////////// . . #[stable(feature = "rust1", since = "1.0.0")] . impl ops::Deref for Vec { . type Target = [T]; . . fn deref(&self) -> &[T] { 295,925 ( 0.14%) unsafe { slice::from_raw_parts(self.as_ptr(), self.len) } . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl ops::DerefMut for Vec { . fn deref_mut(&mut self) -> &mut [T] { 56,991 ( 0.03%) unsafe { slice::from_raw_parts_mut(self.as_mut_ptr(), self.len) } . } . } . . #[cfg(not(no_global_oom_handling))] . trait SpecCloneFrom { . fn clone_from(this: &mut Self, other: &Self); . } . -- line 2447 ---------------------------------------- -- line 2468 ---------------------------------------- . this.extend_from_slice(other); . } . } . . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . impl Clone for Vec { . #[cfg(not(test))] 12,677 ( 0.01%) fn clone(&self) -> Self { . let alloc = self.allocator().clone(); 2 ( 0.00%) <[T]>::to_vec_in(&**self, alloc) 15,579 ( 0.01%) } . . // HACK(japaric): with cfg(test) the inherent `[T]::to_vec` method, which is . // required for this method definition, is not available. Instead use the . // `slice::to_vec` function which is only available with cfg(test) . // NB see the slice::hack module in slice.rs for more information . #[cfg(test)] . fn clone(&self) -> Self { . let alloc = self.allocator().clone(); -- line 2487 ---------------------------------------- -- line 2518 ---------------------------------------- . message = "vector indices are of type `usize` or ranges of `usize`", . label = "vector indices are of type `usize` or ranges of `usize`" . )] . impl, A: Allocator> Index for Vec { . type Output = I::Output; . . #[inline] . fn index(&self, index: I) -> &Self::Output { 8,073 ( 0.00%) Index::index(&**self, index) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_on_unimplemented( . message = "vector indices are of type `usize` or ranges of `usize`", . label = "vector indices are of type `usize` or ranges of `usize`" . )] -- line 2534 ---------------------------------------- -- line 2539 ---------------------------------------- . } . } . . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . impl FromIterator for Vec { . #[inline] . fn from_iter>(iter: I) -> Vec { 70,682 ( 0.03%) >::from_iter(iter.into_iter()) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl IntoIterator for Vec { . type Item = T; . type IntoIter = IntoIter; . -- line 2555 ---------------------------------------- -- line 2564 ---------------------------------------- . /// for s in v.into_iter() { . /// // s has type String, not &String . /// println!("{}", s); . /// } . /// ``` . #[inline] . fn into_iter(self) -> IntoIter { . unsafe { 28,491 ( 0.01%) let mut me = ManuallyDrop::new(self); . let alloc = ptr::read(me.allocator()); . let begin = me.as_mut_ptr(); . let end = if mem::size_of::() == 0 { . arith_offset(begin as *const i8, me.len() as isize) as *const T . } else { . begin.add(me.len()) as *const T . }; . let cap = me.buf.capacity(); 8,766 ( 0.00%) IntoIter { . buf: NonNull::new_unchecked(begin), . phantom: PhantomData, . cap, . alloc, . ptr: begin, . end, . } . } -- line 2589 ---------------------------------------- -- line 2591 ---------------------------------------- . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a, T, A: Allocator> IntoIterator for &'a Vec { . type Item = &'a T; . type IntoIter = slice::Iter<'a, T>; . . fn into_iter(self) -> slice::Iter<'a, T> { 31 ( 0.00%) self.iter() . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a, T, A: Allocator> IntoIterator for &'a mut Vec { . type Item = &'a mut T; . type IntoIter = slice::IterMut<'a, T>; . . fn into_iter(self) -> slice::IterMut<'a, T> { 1,084 ( 0.00%) self.iter_mut() . } . } . . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . impl Extend for Vec { . #[inline] 24 ( 0.00%) fn extend>(&mut self, iter: I) { 35,804 ( 0.02%) >::spec_extend(self, iter.into_iter()) 24 ( 0.00%) } . . #[inline] . fn extend_one(&mut self, item: T) { 32 ( 0.00%) self.push(item); . } . . #[inline] . fn extend_reserve(&mut self, additional: usize) { . self.reserve(additional); . } . } . -- line 2631 ---------------------------------------- -- line 2636 ---------------------------------------- . fn extend_desugared>(&mut self, mut iterator: I) { . // This is the case for a general iterator. . // . // This function should be the moral equivalent of: . // . // for item in iterator { . // self.push(item); . // } 16,971 ( 0.01%) while let Some(element) = iterator.next() { 1,901 ( 0.00%) let len = self.len(); 23,380 ( 0.01%) if len == self.capacity() { 348 ( 0.00%) let (lower, _) = iterator.size_hint(); . self.reserve(lower.saturating_add(1)); . } . unsafe { . ptr::write(self.as_mut_ptr().add(len), element); . // Since next() executes user code which can panic we have to bump the length . // after each step. . // NB can't overflow since we would have had to alloc the address space 21,626 ( 0.01%) self.set_len(len + 1); . } . } 43 ( 0.00%) } . . /// Creates a splicing iterator that replaces the specified range in the vector . /// with the given `replace_with` iterator and yields the removed items. . /// `replace_with` does not need to be the same length as `range`. . /// . /// `range` is removed even if the iterator is not consumed until the end. . /// . /// It is unspecified how many elements are removed from the vector -- line 2666 ---------------------------------------- -- line 2745 ---------------------------------------- . /// assert_eq!(evens, vec![2, 4, 6, 8, 14]); . /// assert_eq!(odds, vec![1, 3, 5, 9, 11, 13, 15]); . /// ``` . #[unstable(feature = "drain_filter", reason = "recently added", issue = "43244")] . pub fn drain_filter(&mut self, filter: F) -> DrainFilter<'_, T, F, A> . where . F: FnMut(&mut T) -> bool, . { 109 ( 0.00%) let old_len = self.len(); . . // Guard against us getting leaked (leak amplification) . unsafe { . self.set_len(0); . } . 48 ( 0.00%) DrainFilter { vec: self, idx: 0, del: 0, old_len, pred: filter, panic_flag: false } . } . } . . /// Extend implementation that copies elements out of references before pushing them onto the Vec. . /// . /// This implementation is specialized for slice iterators, where it uses [`copy_from_slice`] to . /// append the entire slice at once. . /// -- line 2768 ---------------------------------------- -- line 2803 ---------------------------------------- . #[inline] . fn cmp(&self, other: &Self) -> Ordering { . Ord::cmp(&**self, &**other) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . unsafe impl<#[may_dangle] T, A: Allocator> Drop for Vec { 46,956 ( 0.02%) fn drop(&mut self) { . unsafe { . // use drop for [T] . // use a raw slice to refer to the elements of the vector as weakest necessary type; . // could avoid questions of validity in certain cases 22,023 ( 0.01%) ptr::drop_in_place(ptr::slice_from_raw_parts_mut(self.as_mut_ptr(), self.len)) . } . // RawVec handles deallocation 55,358 ( 0.03%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_unstable(feature = "const_default_impls", issue = "87864")] . impl const Default for Vec { . /// Creates an empty `Vec`. . fn default() -> Vec { . Vec::new() -- line 2827 ---------------------------------------- -- line 2976 ---------------------------------------- . /// newly-allocated buffer with exactly the right capacity. . /// . /// # Examples . /// . /// ``` . /// assert_eq!(Box::from(vec![1, 2, 3]), vec![1, 2, 3].into_boxed_slice()); . /// ``` . fn from(v: Vec) -> Self { 4 ( 0.00%) v.into_boxed_slice() . } . } . . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . impl From<&str> for Vec { . /// Allocate a `Vec` and fill it with a UTF-8 string. . /// -- line 2992 ---------------------------------------- 125,442 ( 0.06%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_expand/src/mbe/quoted.rs -------------------------------------------------------------------------------- Ir -- line 33 ---------------------------------------- . /// - `sess`: the parsing session. Any errors will be emitted to this session. . /// - `node_id`: the NodeId of the macro we are parsing. . /// - `features`: language features so we can do feature gating. . /// - `edition`: the edition of the crate defining the macro . /// . /// # Returns . /// . /// A collection of `self::TokenTree`. There may also be some errors emitted to `sess`. 16,562 ( 0.01%) pub(super) fn parse( . input: tokenstream::TokenStream, . expect_matchers: bool, . sess: &ParseSess, . node_id: NodeId, . features: &Features, . edition: Edition, . ) -> Vec { . // Will contain the final collection of `self::TokenTree` . let mut result = Vec::new(); . . // For each token tree in `input`, parse the token into a `self::TokenTree`, consuming . // additional trees if need be. 16,562 ( 0.01%) let mut trees = input.trees(); 48,455 ( 0.02%) while let Some(tree) = trees.next() { . // Given the parsed tree, if there is a metavar and we are expecting matchers, actually . // parse out the matcher (i.e., in `$id:ident` this would parse the `:` and `ident`). 42,085 ( 0.02%) let tree = parse_tree(tree, &mut trees, expect_matchers, sess, node_id, features, edition); 3,656 ( 0.00%) match tree { 372 ( 0.00%) TokenTree::MetaVar(start_sp, ident) if expect_matchers => { 434 ( 0.00%) let span = match trees.next() { 62 ( 0.00%) Some(tokenstream::TokenTree::Token(Token { kind: token::Colon, span })) => { 310 ( 0.00%) match trees.next() { 558 ( 0.00%) Some(tokenstream::TokenTree::Token(token)) => match token.ident() { 124 ( 0.00%) Some((frag, _)) => { 372 ( 0.00%) let span = token.span.with_lo(start_sp.lo()); . . let kind = 248 ( 0.00%) token::NonterminalKind::from_symbol(frag.name, || { . // FIXME(#85708) - once we properly decode a foreign . // crate's `SyntaxContext::root`, then we can replace . // this with just `span.edition()`. A . // `SyntaxContext::root()` from the current crate will . // have the edition of the current crate, and a . // `SyntaxContext::root()` from a foreign crate will . // have the edition of that crate (which we manually . // retrieve via the `edition` parameter). -- line 77 ---------------------------------------- -- line 89 ---------------------------------------- . ); . sess.span_diagnostic . .struct_span_err(span, &msg) . .help(VALID_FRAGMENT_NAMES_MSG) . .emit(); . token::NonterminalKind::Ident . }, . ); 496 ( 0.00%) result.push(TokenTree::MetaVarDecl(span, ident, Some(kind))); . continue; . } . _ => token.span, . }, . tree => tree.as_ref().map_or(span, tokenstream::TokenTree::span), . } 124 ( 0.00%) } . tree => tree.as_ref().map_or(start_sp, tokenstream::TokenTree::span), . }; . if node_id != DUMMY_NODE_ID { . // Macros loaded from other crates have dummy node ids. . sess.missing_fragment_specifiers.borrow_mut().insert(span, node_id); . } . result.push(TokenTree::MetaVarDecl(span, ident, None)); . } . . // Not a metavar or no matchers allowed, so just return the tree 116,970 ( 0.06%) _ => result.push(tree), . } . } . result 11,466 ( 0.01%) } . . /// Takes a `tokenstream::TokenTree` and returns a `self::TokenTree`. Specifically, this takes a . /// generic `TokenTree`, such as is used in the rest of the compiler, and returns a `TokenTree` . /// for use in parsing a macro. . /// . /// Converting the given tree may involve reading more tokens. . /// . /// # Parameters -- line 127 ---------------------------------------- -- line 138 ---------------------------------------- . outer_trees: &mut impl Iterator, . expect_matchers: bool, . sess: &ParseSess, . node_id: NodeId, . features: &Features, . edition: Edition, . ) -> TokenTree { . // Depending on what `tree` is, we could be parsing different parts of a macro 31,252 ( 0.02%) match tree { . // `tree` is a `$` token. Look at the next token in `trees` 630 ( 0.00%) tokenstream::TokenTree::Token(Token { kind: token::Dollar, span }) => { . // FIXME: Handle `None`-delimited groups in a more systematic way . // during parsing. 1,890 ( 0.00%) let mut next = outer_trees.next(); . let mut trees: Box>; 1,910 ( 0.00%) if let Some(tokenstream::TokenTree::Delimited(_, token::NoDelim, tts)) = next { . trees = Box::new(tts.into_trees()); . next = trees.next(); . } else { 2,520 ( 0.00%) trees = Box::new(outer_trees); . } . 2,500 ( 0.00%) match next { . // `tree` is followed by a delimited set of token trees. This indicates the beginning . // of a repetition sequence in the macro (e.g. `$(pat)*`). 70 ( 0.00%) Some(tokenstream::TokenTree::Delimited(span, delim, tts)) => { . // Must have `(` not `{` or `[` 10 ( 0.00%) if delim != token::Paren { . let tok = pprust::token_kind_to_string(&token::OpenDelim(delim)); . let msg = format!("expected `(`, found `{}`", tok); . sess.span_diagnostic.span_err(span.entire(), &msg); . } . // Parse the contents of the sequence itself 90 ( 0.00%) let sequence = parse(tts, expect_matchers, sess, node_id, features, edition); . // Get the Kleene operator and optional separator 60 ( 0.00%) let (separator, kleene) = 10 ( 0.00%) parse_sep_and_kleene_op(&mut trees, span.entire(), sess); . // Count the number of captured "names" (i.e., named metavars) . let name_captures = macro_parser::count_names(&sequence); 80 ( 0.00%) TokenTree::Sequence( . span, . Lrc::new(SequenceRepetition { 40 ( 0.00%) tts: sequence, 50 ( 0.00%) separator, . kleene, . num_captures: name_captures, . }), . ) . } . . // `tree` is followed by an `ident`. This could be `$meta_var` or the `$crate` special . // metavariable that names the crate of the invocation. 4,960 ( 0.00%) Some(tokenstream::TokenTree::Token(token)) if token.is_ident() => { 1,240 ( 0.00%) let (ident, is_raw) = token.ident().unwrap(); 1,860 ( 0.00%) let span = ident.span.with_lo(span.lo()); 4,340 ( 0.00%) if ident.name == kw::Crate && !is_raw { 600 ( 0.00%) TokenTree::token(token::Ident(kw::DollarCrate, is_raw), span) . } else { 2,350 ( 0.00%) TokenTree::MetaVar(span, ident) . } . } . . // `tree` is followed by a random token. This is an error. . Some(tokenstream::TokenTree::Token(token)) => { . let msg = format!( . "expected identifier, found `{}`", . pprust::token_to_string(&token), -- line 204 ---------------------------------------- -- line 208 ---------------------------------------- . } . . // There are no more tokens. Just return the `$` we already have. . None => TokenTree::token(token::Dollar, span), . } . } . . // `tree` is an arbitrary token. Keep it. 32,895 ( 0.02%) tokenstream::TokenTree::Token(token) => TokenTree::Token(token), . . // `tree` is the beginning of a delimited set of tokens (e.g., `(` or `{`). We need to . // descend into the delimited set and further parse it. 8,456 ( 0.00%) tokenstream::TokenTree::Delimited(span, delim, tts) => TokenTree::Delimited( . span, 4,832 ( 0.00%) Lrc::new(Delimited { . delim, 9,664 ( 0.00%) tts: parse(tts, expect_matchers, sess, node_id, features, edition), . }), . ), . } 3,150 ( 0.00%) } . . /// Takes a token and returns `Some(KleeneOp)` if the token is `+` `*` or `?`. Otherwise, return . /// `None`. . fn kleene_op(token: &Token) -> Option { 80 ( 0.00%) match token.kind { . token::BinOp(token::Star) => Some(KleeneOp::ZeroOrMore), . token::BinOp(token::Plus) => Some(KleeneOp::OneOrMore), . token::Question => Some(KleeneOp::ZeroOrOne), . _ => None, . } . } . . /// Parse the next token tree of the input looking for a KleeneOp. Returns . /// . /// - Ok(Ok((op, span))) if the next token tree is a KleeneOp . /// - Ok(Err(tok, span)) if the next token tree is a token but not a KleeneOp . /// - Err(span) if the next token tree is not a token 50 ( 0.00%) fn parse_kleene_op( . input: &mut impl Iterator, . span: Span, . ) -> Result, Span> { 20 ( 0.00%) match input.next() { 20 ( 0.00%) Some(tokenstream::TokenTree::Token(token)) => match kleene_op(&token) { 30 ( 0.00%) Some(op) => Ok(Ok((op, token.span))), . None => Ok(Err(token)), . }, . tree => Err(tree.as_ref().map_or(span, tokenstream::TokenTree::span)), . } 40 ( 0.00%) } . . /// Attempt to parse a single Kleene star, possibly with a separator. . /// . /// For example, in a pattern such as `$(a),*`, `a` is the pattern to be repeated, `,` is the . /// separator, and `*` is the Kleene operator. This function is specifically concerned with parsing . /// the last two tokens of such a pattern: namely, the optional separator and the Kleene operator . /// itself. Note that here we are parsing the _macro_ itself, rather than trying to match some . /// stream of tokens in an invocation of a macro. -- line 265 ---------------------------------------- -- line 269 ---------------------------------------- . /// operator and separator, then a tuple with `(separator, KleeneOp)` is returned. Otherwise, an . /// error with the appropriate span is emitted to `sess` and a dummy value is returned. . fn parse_sep_and_kleene_op( . input: &mut impl Iterator, . span: Span, . sess: &ParseSess, . ) -> (Option, KleeneToken) { . // We basically look at two token trees here, denoted as #1 and #2 below 80 ( 0.00%) let span = match parse_kleene_op(input, span) { . // #1 is a `?`, `+`, or `*` KleeneOp 30 ( 0.00%) Ok(Ok((op, span))) => return (None, KleeneToken::new(op, span)), . . // #1 is a separator followed by #2, a KleeneOp . Ok(Err(token)) => match parse_kleene_op(input, token.span) { . // #2 is the `?` Kleene op, which does not take a separator (error) . Ok(Ok((KleeneOp::ZeroOrOne, span))) => { . // Error! . sess.span_diagnostic.span_err( . token.span, -- line 287 ---------------------------------------- 28,555 ( 0.01%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/md-5-0.9.1/src/utils.rs -------------------------------------------------------------------------------- Ir . #![allow(clippy::many_single_char_names)] . use crate::consts::RC; . use core::convert::TryInto; . . #[inline(always)] . fn op_f(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 { 82,604 ( 0.04%) ((x & y) | (!x & z)) . .wrapping_add(w) . .wrapping_add(m) . .wrapping_add(c) . .rotate_left(s) . .wrapping_add(x) . } . #[inline(always)] . fn op_g(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 { 78,744 ( 0.04%) ((x & z) | (y & !z)) . .wrapping_add(w) . .wrapping_add(m) . .wrapping_add(c) . .rotate_left(s) . .wrapping_add(x) . } . . #[inline(always)] . fn op_h(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 { 38,600 ( 0.02%) (x ^ y ^ z) . .wrapping_add(w) . .wrapping_add(m) . .wrapping_add(c) . .rotate_left(s) . .wrapping_add(x) . } . . #[inline(always)] . fn op_i(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 { 49,408 ( 0.02%) (y ^ (x | !z)) . .wrapping_add(w) . .wrapping_add(m) . .wrapping_add(c) . .rotate_left(s) . .wrapping_add(x) . } . . #[inline] 6,948 ( 0.00%) pub fn compress(state: &mut [u32; 4], input: &[u8; 64]) { 1,544 ( 0.00%) let mut a = state[0]; 772 ( 0.00%) let mut b = state[1]; 772 ( 0.00%) let mut c = state[2]; 772 ( 0.00%) let mut d = state[3]; . . let mut data = [0u32; 16]; . for (o, chunk) in data.iter_mut().zip(input.chunks_exact(4)) { 19,300 ( 0.01%) *o = u32::from_le_bytes(chunk.try_into().unwrap()); . } . . // round 1 . a = op_f(a, b, c, d, data[0], RC[0], 7); . d = op_f(d, a, b, c, data[1], RC[1], 12); . c = op_f(c, d, a, b, data[2], RC[2], 17); . b = op_f(b, c, d, a, data[3], RC[3], 22); . -- line 61 ---------------------------------------- -- line 132 ---------------------------------------- . c = op_i(c, d, a, b, data[6], RC[58], 15); . b = op_i(b, c, d, a, data[13], RC[59], 21); . . a = op_i(a, b, c, d, data[4], RC[60], 6); . d = op_i(d, a, b, c, data[11], RC[61], 10); . c = op_i(c, d, a, b, data[2], RC[62], 15); . b = op_i(b, c, d, a, data[9], RC[63], 21); . 1,544 ( 0.00%) state[0] = state[0].wrapping_add(a); 772 ( 0.00%) state[1] = state[1].wrapping_add(b); 772 ( 0.00%) state[2] = state[2].wrapping_add(c); 772 ( 0.00%) state[3] = state[3].wrapping_add(d); 6,176 ( 0.00%) } -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/parser/mod.rs -------------------------------------------------------------------------------- Ir -- line 36 ---------------------------------------- . use rustc_session::parse::ParseSess; . use rustc_span::source_map::{MultiSpan, Span, DUMMY_SP}; . use rustc_span::symbol::{kw, sym, Ident, Symbol}; . use tracing::debug; . . use std::ops::Range; . use std::{cmp, mem, slice}; . 242 ( 0.00%) bitflags::bitflags! { . struct Restrictions: u8 { . const STMT_EXPR = 1 << 0; . const NO_STRUCT_LITERAL = 1 << 1; . const CONST_EXPR = 1 << 2; . } . } . . #[derive(Clone, Copy, PartialEq, Debug)] -- line 52 ---------------------------------------- -- line 104 ---------------------------------------- . $self.bump(); . return $self.maybe_recover_from_bad_qpath_stage_2($self.prev_token.span, ty); . } . } . } . }; . } . 2,136 ( 0.00%) #[derive(Clone)] . pub struct Parser<'a> { 84 ( 0.00%) pub sess: &'a ParseSess, . /// The current token. 76 ( 0.00%) pub token: Token, . /// The spacing for the current token 38 ( 0.00%) pub token_spacing: Spacing, . /// The previous token. 114 ( 0.00%) pub prev_token: Token, 38 ( 0.00%) pub capture_cfg: bool, 76 ( 0.00%) restrictions: Restrictions, 76 ( 0.00%) expected_tokens: Vec, . // Important: This must only be advanced from `next_tok` . // to ensure that `token_cursor.num_next_calls` is updated properly . token_cursor: TokenCursor, 76 ( 0.00%) desugar_doc_comments: bool, . /// This field is used to keep track of how many left angle brackets we have seen. This is . /// required in order to detect extra leading left angle brackets (`<` characters) and error . /// appropriately. . /// . /// See the comments in the `parse_path_segment` function for more details. 76 ( 0.00%) unmatched_angle_bracket_count: u32, 114 ( 0.00%) max_angle_bracket_count: u32, . /// A list of all unclosed delimiters found by the lexer. If an entry is used for error recovery . /// it gets removed from here. Every entry left at the end gets emitted as an independent . /// error. 38 ( 0.00%) pub(super) unclosed_delims: Vec, . last_unexpected_token_span: Option, . /// Span pointing at the `:` for the last type ascription the parser has seen, and whether it . /// looked like it could have been a mistyped path or literal `Option:Some(42)`). . pub last_type_ascription: Option<(Span, bool /* likely path typo */)>, . /// If present, this `Parser` is not parsing Rust code but rather a macro call. . subparser_name: Option<&'static str>, . capture_state: CaptureState, . /// This allows us to recover when the user forget to add braces around -- line 146 ---------------------------------------- -- line 173 ---------------------------------------- . /// the first macro inner attribute to invoke a proc-macro). . /// When create a `TokenStream`, the inner attributes get inserted . /// into the proper place in the token stream. . pub type ReplaceRange = (Range, Vec<(FlatToken, Spacing)>); . . /// Controls how we capture tokens. Capturing can be expensive, . /// so we try to avoid performing capturing in cases where . /// we will never need an `AttrAnnotatedTokenStream` 38 ( 0.00%) #[derive(Copy, Clone)] . pub enum Capturing { . /// We aren't performing any capturing - this is the default mode. . No, . /// We are capturing tokens . Yes, . } . 160 ( 0.00%) #[derive(Clone)] . struct CaptureState { 152 ( 0.00%) capturing: Capturing, 38 ( 0.00%) replace_ranges: Vec, . inner_attr_ranges: FxHashMap, . } . . impl<'a> Drop for Parser<'a> { . fn drop(&mut self) { 429 ( 0.00%) emit_unclosed_delims(&mut self.unclosed_delims, &self.sess); . } . } . 4,421 ( 0.00%) #[derive(Clone)] . struct TokenCursor { . frame: TokenCursorFrame, 979 ( 0.00%) stack: Vec, . desugar_doc_comments: bool, . // Counts the number of calls to `next` or `next_desugared`, . // depending on whether `desugar_doc_comments` is set. 323 ( 0.00%) num_next_calls: usize, . // During parsing, we may sometimes need to 'unglue' a . // glued token into two component tokens . // (e.g. '>>' into '>' and '>), so that the parser . // can consume them one at a time. This process . // bypasses the normal capturing mechanism . // (e.g. `num_next_calls` will not be incremented), . // since the 'unglued' tokens due not exist in . // the original `TokenStream`. -- line 217 ---------------------------------------- -- line 226 ---------------------------------------- . // in `Option>` requires us to unglue . // the trailing `>>` token. The `break_last_token` . // field is used to track this token - it gets . // appended to the captured stream when . // we evaluate a `LazyTokenStream` . break_last_token: bool, . } . 1,999 ( 0.00%) #[derive(Clone)] . struct TokenCursorFrame { 388 ( 0.00%) delim: token::DelimToken, . span: DelimSpan, . open_delim: bool, 776 ( 0.00%) tree_cursor: tokenstream::Cursor, . close_delim: bool, . } . . impl TokenCursorFrame { . fn new(span: DelimSpan, delim: DelimToken, tts: TokenStream) -> Self { 455 ( 0.00%) TokenCursorFrame { . delim, . span, . open_delim: false, 3,089 ( 0.00%) tree_cursor: tts.into_trees(), . close_delim: false, . } . } . } . . impl TokenCursor { 281,040 ( 0.14%) fn next(&mut self) -> (Token, Spacing) { . loop { 136,413 ( 0.07%) let (tree, spacing) = if !self.frame.open_delim { 2,823 ( 0.00%) self.frame.open_delim = true; 14,115 ( 0.01%) TokenTree::open_tt(self.frame.span, self.frame.delim).into() 273,707 ( 0.13%) } else if let Some(tree) = self.frame.tree_cursor.next_with_spacing() { . tree 11,438 ( 0.01%) } else if !self.frame.close_delim { 2,809 ( 0.00%) self.frame.close_delim = true; 14,045 ( 0.01%) TokenTree::close_tt(self.frame.span, self.frame.delim).into() 5,618 ( 0.00%) } else if let Some(frame) = self.stack.pop() { 36,517 ( 0.02%) self.frame = frame; . continue; . } else { 1,818 ( 0.00%) (TokenTree::Token(Token::new(token::Eof, DUMMY_SP)), Spacing::Alone) . }; . 52,318 ( 0.03%) match tree { . TokenTree::Token(token) => { 187,360 ( 0.09%) return (token, spacing); . } . TokenTree::Delimited(sp, delim, tts) => { . let frame = TokenCursorFrame::new(sp, delim, tts); . self.stack.push(mem::replace(&mut self.frame, frame)); . } . } . } 187,360 ( 0.09%) } . 111,150 ( 0.05%) fn next_desugared(&mut self) -> (Token, Spacing) { 33,513 ( 0.02%) let (data, attr_style, sp) = match self.next() { 252 ( 0.00%) (Token { kind: token::DocComment(_, attr_style, data), span }, _) => { . (data, attr_style, span) . } 55,155 ( 0.03%) tok => return tok, . }; . . // Searches for the occurrences of `"#*` and returns the minimum number of `#`s . // required to wrap the text. . let mut num_of_hashes = 0; . let mut count = 0; 15,762 ( 0.01%) for ch in data.as_str().chars() { . count = match ch { . '"' => 1, 18 ( 0.00%) '#' if count > 0 => count + 1, . _ => 0, . }; . num_of_hashes = cmp::max(num_of_hashes, count); . } . 336 ( 0.00%) let delim_span = DelimSpan::from_single(sp); 420 ( 0.00%) let body = TokenTree::Delimited( . delim_span, . token::Bracket, 1,008 ( 0.00%) [ 588 ( 0.00%) TokenTree::token(token::Ident(sym::doc, false), sp), 336 ( 0.00%) TokenTree::token(token::Eq, sp), 672 ( 0.00%) TokenTree::token(TokenKind::lit(token::StrRaw(num_of_hashes), data, None), sp), . ] . .iter() . .cloned() . .collect::(), 84 ( 0.00%) ); . . self.stack.push(mem::replace( . &mut self.frame, . TokenCursorFrame::new( . delim_span, . token::NoDelim, 84 ( 0.00%) if attr_style == AttrStyle::Inner { . [TokenTree::token(token::Pound, sp), TokenTree::token(token::Not, sp), body] . .iter() . .cloned() . .collect::() . } else { 1,008 ( 0.00%) [TokenTree::token(token::Pound, sp), body] . .iter() . .cloned() . .collect::() . }, . ), . )); . 252 ( 0.00%) self.next() 100,035 ( 0.05%) } . } . 750 ( 0.00%) #[derive(Debug, Clone, PartialEq)] . enum TokenType { 600 ( 0.00%) Token(TokenKind), . Keyword(Symbol), . Operator, . Lifetime, . Ident, . Path, . Type, . Const, . } -- line 353 ---------------------------------------- -- line 392 ---------------------------------------- . } . . pub enum FollowedByType { . Yes, . No, . } . . fn token_descr_opt(token: &Token) -> Option<&'static str> { 114 ( 0.00%) Some(match token.kind { 228 ( 0.00%) _ if token.is_special_ident() => "reserved identifier", 228 ( 0.00%) _ if token.is_used_keyword() => "keyword", 228 ( 0.00%) _ if token.is_unused_keyword() => "reserved keyword", . token::DocComment(..) => "doc comment", . _ => return None, . }) . } . 399 ( 0.00%) pub(super) fn token_descr(token: &Token) -> String { 114 ( 0.00%) let token_str = pprust::token_to_string(token); . match token_descr_opt(token) { . Some(prefix) => format!("{} `{}`", prefix, token_str), 399 ( 0.00%) _ => format!("`{}`", token_str), . } 285 ( 0.00%) } . . impl<'a> Parser<'a> { 1,274 ( 0.00%) pub fn new( . sess: &'a ParseSess, . tokens: TokenStream, . desugar_doc_comments: bool, . subparser_name: Option<&'static str>, . ) -> Self { 91 ( 0.00%) let mut start_frame = TokenCursorFrame::new(DelimSpan::dummy(), token::NoDelim, tokens); 182 ( 0.00%) start_frame.open_delim = true; . start_frame.close_delim = true; . 2,821 ( 0.00%) let mut parser = Parser { . sess, 91 ( 0.00%) token: Token::dummy(), . token_spacing: Spacing::Alone, 91 ( 0.00%) prev_token: Token::dummy(), . capture_cfg: false, . restrictions: Restrictions::empty(), . expected_tokens: Vec::new(), . token_cursor: TokenCursor { 546 ( 0.00%) frame: start_frame, . stack: Vec::new(), . num_next_calls: 0, . desugar_doc_comments, . break_last_token: false, . }, . desugar_doc_comments, . unmatched_angle_bracket_count: 0, . max_angle_bracket_count: 0, -- line 445 ---------------------------------------- -- line 451 ---------------------------------------- . capturing: Capturing::No, . replace_ranges: Vec::new(), . inner_attr_ranges: Default::default(), . }, . current_closure: None, . }; . . // Make parser point to the first token. 182 ( 0.00%) parser.bump(); . . parser 819 ( 0.00%) } . . fn next_tok(&mut self, fallback_span: Span) -> (Token, Spacing) { . loop { 139,026 ( 0.07%) let (mut next, spacing) = if self.desugar_doc_comments { 44,460 ( 0.02%) self.token_cursor.next_desugared() . } else { 36,168 ( 0.02%) self.token_cursor.next() . }; 92,684 ( 0.05%) self.token_cursor.num_next_calls += 1; . // We've retrieved an token from the underlying . // cursor, so we no longer need to worry about . // an unglued token. See `break_and_eat` for more details 23,171 ( 0.01%) self.token_cursor.break_last_token = false; 92,684 ( 0.05%) if next.span.is_dummy() { . // Tweak the location for better diagnostics, but keep syntactic context intact. 372 ( 0.00%) next.span = fallback_span.with_ctxt(next.span.ctxt()); . } 77,940 ( 0.04%) if matches!( 46,342 ( 0.02%) next.kind, . token::OpenDelim(token::NoDelim) | token::CloseDelim(token::NoDelim) . ) { . continue; . } 92,012 ( 0.04%) return (next, spacing); . } . } . . pub fn unexpected(&mut self) -> PResult<'a, T> { . match self.expect_one_of(&[], &[]) { . Err(e) => Err(e), . // We can get `Ok(true)` from `recover_closing_delimiter` . // which is called in `expected_one_of_not_found`. . Ok(_) => FatalError.raise(), . } . } . . /// Expects and consumes the token `t`. Signals an error if the next token is not `t`. 2,007 ( 0.00%) pub fn expect(&mut self, t: &TokenKind) -> PResult<'a, bool /* recovered */> { 223 ( 0.00%) if self.expected_tokens.is_empty() { 354 ( 0.00%) if self.token == *t { 295 ( 0.00%) self.bump(); . Ok(false) . } else { . self.unexpected_try_recover(t) . } . } else { 1,968 ( 0.00%) self.expect_one_of(slice::from_ref(t), &[]) . } 3,345 ( 0.00%) } . . /// Expect next token to be edible or inedible token. If edible, . /// then consume it; if inedible, then return without consuming . /// anything. Signal a fatal error if next token is unexpected. 2,340 ( 0.00%) pub fn expect_one_of( . &mut self, . edible: &[TokenKind], . inedible: &[TokenKind], . ) -> PResult<'a, bool /* recovered */> { 390 ( 0.00%) if edible.contains(&self.token.kind) { 546 ( 0.00%) self.bump(); . Ok(false) . } else if inedible.contains(&self.token.kind) { . // leave it in the input . Ok(false) . } else if self.last_unexpected_token_span == Some(self.token.span) { . FatalError.raise(); . } else { . self.expected_one_of_not_found(edible, inedible) . } 2,925 ( 0.00%) } . . // Public for rustfmt usage. . pub fn parse_ident(&mut self) -> PResult<'a, Ident> { 1,439 ( 0.00%) self.parse_ident_common(true) . } . . fn ident_or_err(&mut self) -> PResult<'a, (Ident, /* is_raw */ bool)> { 1,113 ( 0.00%) self.token.ident().ok_or_else(|| match self.prev_token.kind { . TokenKind::DocComment(..) => { . self.span_err(self.prev_token.span, Error::UselessDocComment) . } . _ => self.expected_ident_found(), . }) . } . 2,527 ( 0.00%) fn parse_ident_common(&mut self, recover: bool) -> PResult<'a, Ident> { 361 ( 0.00%) let (ident, is_raw) = self.ident_or_err()?; 2,166 ( 0.00%) if !is_raw && ident.is_reserved() { . let mut err = self.expected_ident_found(); . if recover { . err.emit(); . } else { . return Err(err); . } . } 1,444 ( 0.00%) self.bump(); . Ok(ident) 3,610 ( 0.00%) } . . /// Checks if the next token is `tok`, and returns `true` if so. . /// . /// This method will automatically add `tok` to `expected_tokens` if `tok` is not . /// encountered. 25,879 ( 0.01%) fn check(&mut self, tok: &TokenKind) -> bool { 11,216 ( 0.01%) let is_present = self.token == *tok; 7,524 ( 0.00%) if !is_present { 15,530 ( 0.01%) self.expected_tokens.push(TokenType::Token(tok.clone())); . } . is_present 25,879 ( 0.01%) } . . /// Consumes a token 'tok' if it exists. Returns whether the given token was present. 20 ( 0.00%) pub fn eat(&mut self, tok: &TokenKind) -> bool { 5,353 ( 0.00%) let is_present = self.check(tok); 3,474 ( 0.00%) if is_present { 682 ( 0.00%) self.bump() . } . is_present 25 ( 0.00%) } . . /// If the next token is the given keyword, returns `true` without eating it. . /// An expectation is also added for diagnostics purposes. 1,160 ( 0.00%) fn check_keyword(&mut self, kw: Symbol) -> bool { 242 ( 0.00%) self.expected_tokens.push(TokenType::Keyword(kw)); 7,343 ( 0.00%) self.token.is_keyword(kw) . } . . /// If the next token is the given keyword, eats it and returns `true`. . /// Otherwise, returns `false`. An expectation is also added for diagnostics purposes. . // Public for rustfmt usage. 1,845 ( 0.00%) pub fn eat_keyword(&mut self, kw: Symbol) -> bool { 1,540 ( 0.00%) if self.check_keyword(kw) { 219 ( 0.00%) self.bump(); . true . } else { . false . } 1,845 ( 0.00%) } . . fn eat_keyword_noexpect(&mut self, kw: Symbol) -> bool { 200 ( 0.00%) if self.token.is_keyword(kw) { 50 ( 0.00%) self.bump(); . true . } else { . false . } . } . . /// If the given word is not a keyword, signals an error. . /// If the next token is not the given word, signals an error. . /// Otherwise, eats it. 130 ( 0.00%) fn expect_keyword(&mut self, kw: Symbol) -> PResult<'a, ()> { . if !self.eat_keyword(kw) { self.unexpected() } else { Ok(()) } 104 ( 0.00%) } . . /// Is the given keyword `kw` followed by a non-reserved identifier? 544 ( 0.00%) fn is_kw_followed_by_ident(&self, kw: Symbol) -> bool { 272 ( 0.00%) self.token.is_keyword(kw) && self.look_ahead(1, |t| t.is_ident() && !t.is_reserved_ident()) 612 ( 0.00%) } . 1,302 ( 0.00%) fn check_or_expected(&mut self, ok: bool, typ: TokenType) -> bool { 460 ( 0.00%) if ok { . true . } else { 252 ( 0.00%) self.expected_tokens.push(typ); . false . } 1,302 ( 0.00%) } . . fn check_ident(&mut self) -> bool { 261 ( 0.00%) self.check_or_expected(self.token.is_ident(), TokenType::Ident) . } . 444 ( 0.00%) fn check_path(&mut self) -> bool { 1,107 ( 0.00%) self.check_or_expected(self.token.is_path_start(), TokenType::Path) 555 ( 0.00%) } . . fn check_type(&mut self) -> bool { 48 ( 0.00%) self.check_or_expected(self.token.can_begin_type(), TokenType::Type) . } . . fn check_const_arg(&mut self) -> bool { 48 ( 0.00%) self.check_or_expected(self.token.can_begin_const_arg(), TokenType::Const) . } . 279 ( 0.00%) fn check_inline_const(&self, dist: usize) -> bool { 155 ( 0.00%) self.is_keyword_ahead(dist, &[kw::Const]) . && self.look_ahead(dist + 1, |t| match t.kind { . token::Interpolated(ref nt) => matches!(**nt, token::NtBlock(..)), . token::OpenDelim(DelimToken::Brace) => true, . _ => false, . }) 279 ( 0.00%) } . . /// Checks to see if the next token is either `+` or `+=`. . /// Otherwise returns `false`. . fn check_plus(&mut self) -> bool { 176 ( 0.00%) self.check_or_expected( 88 ( 0.00%) self.token.is_like_plus(), 88 ( 0.00%) TokenType::Token(token::BinOp(token::Plus)), . ) . } . . /// Eats the expected token if it's present possibly breaking . /// compound tokens like multi-character operators in process. . /// Returns `true` if the token was eaten. 1,968 ( 0.00%) fn break_and_eat(&mut self, expected: TokenKind) -> bool { 1,148 ( 0.00%) if self.token.kind == expected { 58 ( 0.00%) self.bump(); . return true; . } 675 ( 0.00%) match self.token.kind.break_two_token_op() { . Some((first, second)) if first == expected => { . let first_span = self.sess.source_map().start_point(self.token.span); . let second_span = self.token.span.with_lo(first_span.hi()); . self.token = Token::new(first, first_span); . // Keep track of this token - if we end token capturing now, . // we'll want to append this token to the captured stream. . // . // If we consume any additional tokens, then this token -- line 682 ---------------------------------------- -- line 684 ---------------------------------------- . // and `next_tok` will set this field to `None` . self.token_cursor.break_last_token = true; . // Use the spacing of the glued token as the spacing . // of the unglued second token. . self.bump_with((Token::new(second, second_span), self.token_spacing)); . true . } . _ => { 405 ( 0.00%) self.expected_tokens.push(TokenType::Token(expected)); . false . } . } 2,016 ( 0.00%) } . . /// Eats `+` possibly breaking tokens like `+=` in process. . fn eat_plus(&mut self) -> bool { 16 ( 0.00%) self.break_and_eat(token::BinOp(token::Plus)) . } . . /// Eats `&` possibly breaking tokens like `&&` in process. . /// Signals an error if `&` is not eaten. . fn expect_and(&mut self) -> PResult<'a, ()> { 42 ( 0.00%) if self.break_and_eat(token::BinOp(token::And)) { Ok(()) } else { self.unexpected() } . } . . /// Eats `|` possibly breaking tokens like `||` in process. . /// Signals an error if `|` was not eaten. . fn expect_or(&mut self) -> PResult<'a, ()> { . if self.break_and_eat(token::BinOp(token::Or)) { Ok(()) } else { self.unexpected() } . } . . /// Eats `<` possibly breaking tokens like `<<` in process. 130 ( 0.00%) fn eat_lt(&mut self) -> bool { 455 ( 0.00%) let ate = self.break_and_eat(token::Lt); 296 ( 0.00%) if ate { . // See doc comment for `unmatched_angle_bracket_count`. 40 ( 0.00%) self.unmatched_angle_bracket_count += 1; 40 ( 0.00%) self.max_angle_bracket_count += 1; . debug!("eat_lt: (increment) count={:?}", self.unmatched_angle_bracket_count); . } . ate 130 ( 0.00%) } . . /// Eats `<` possibly breaking tokens like `<<` in process. . /// Signals an error if `<` was not eaten. . fn expect_lt(&mut self) -> PResult<'a, ()> { . if self.eat_lt() { Ok(()) } else { self.unexpected() } . } . . /// Eats `>` possibly breaking tokens like `>>` in process. . /// Signals an error if `>` was not eaten. . fn expect_gt(&mut self) -> PResult<'a, ()> { 60 ( 0.00%) if self.break_and_eat(token::Gt) { . // See doc comment for `unmatched_angle_bracket_count`. 30 ( 0.00%) if self.unmatched_angle_bracket_count > 0 { 20 ( 0.00%) self.unmatched_angle_bracket_count -= 1; . debug!("expect_gt: (decrement) count={:?}", self.unmatched_angle_bracket_count); . } . Ok(()) . } else { . self.unexpected() . } . } . . fn expect_any_with_type(&mut self, kets: &[&TokenKind], expect: TokenExpectType) -> bool { . kets.iter().any(|k| match expect { 375 ( 0.00%) TokenExpectType::Expect => self.check(k), . TokenExpectType::NoExpect => self.token == **k, . }) . } . . fn parse_seq_to_before_tokens( . &mut self, . kets: &[&TokenKind], . sep: SeqSep, -- line 758 ---------------------------------------- -- line 761 ---------------------------------------- . ) -> PResult<'a, (Vec, bool /* trailing */, bool /* recovered */)> { . let mut first = true; . let mut recovered = false; . let mut trailing = false; . let mut v = vec![]; . let unclosed_delims = !self.unclosed_delims.is_empty(); . . while !self.expect_any_with_type(kets, expect) { 299 ( 0.00%) if let token::CloseDelim(..) | token::Eof = self.token.kind { . break; . } 238 ( 0.00%) if let Some(ref t) = sep.sep { 272 ( 0.00%) if first { . first = false; . } else { 77 ( 0.00%) match self.expect(t) { . Ok(false) => { . self.current_closure.take(); . } . Ok(true) => { . self.current_closure.take(); . recovered = true; . break; . } -- line 784 ---------------------------------------- -- line 857 ---------------------------------------- . e.cancel(); . break; . } . } . } . } . } . } 112 ( 0.00%) if sep.trailing_sep_allowed && self.expect_any_with_type(kets, expect) { . trailing = true; . break; . } . 85 ( 0.00%) let t = f(self)?; 158 ( 0.00%) v.push(t); . } . 184 ( 0.00%) Ok((v, trailing, recovered)) . } . . fn recover_missing_braces_around_closure_body( . &mut self, . closure_spans: ClosureSpans, . mut expect_err: DiagnosticBuilder<'_>, . ) -> PResult<'a, ()> { . let initial_semicolon = self.token.span; -- line 882 ---------------------------------------- -- line 937 ---------------------------------------- . /// `f` must consume tokens until reaching the next separator or . /// closing bracket. . fn parse_seq_to_before_end( . &mut self, . ket: &TokenKind, . sep: SeqSep, . f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, . ) -> PResult<'a, (Vec, bool, bool)> { 197 ( 0.00%) self.parse_seq_to_before_tokens(&[ket], sep, TokenExpectType::Expect, f) . } . . /// Parses a sequence, including the closing delimiter. The function . /// `f` must consume tokens until reaching the next separator or . /// closing bracket. 150 ( 0.00%) fn parse_seq_to_end( . &mut self, . ket: &TokenKind, . sep: SeqSep, . f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, . ) -> PResult<'a, (Vec, bool /* trailing */)> { 109 ( 0.00%) let (val, trailing, recovered) = self.parse_seq_to_before_end(ket, sep, f)?; 75 ( 0.00%) if !recovered { . self.eat(ket); . } 247 ( 0.00%) Ok((val, trailing)) 120 ( 0.00%) } . . /// Parses a sequence, including the closing delimiter. The function . /// `f` must consume tokens until reaching the next separator or . /// closing bracket. . fn parse_unspanned_seq( . &mut self, . bra: &TokenKind, . ket: &TokenKind, . sep: SeqSep, . f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, . ) -> PResult<'a, (Vec, bool)> { 96 ( 0.00%) self.expect(bra)?; 120 ( 0.00%) self.parse_seq_to_end(ket, sep, f) . } . . fn parse_delim_comma_seq( . &mut self, . delim: DelimToken, . f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, . ) -> PResult<'a, (Vec, bool)> { . self.parse_unspanned_seq( 46 ( 0.00%) &token::OpenDelim(delim), 80 ( 0.00%) &token::CloseDelim(delim), . SeqSep::trailing_allowed(token::Comma), . f, . ) . } . . fn parse_paren_comma_seq( . &mut self, . f: impl FnMut(&mut Parser<'a>) -> PResult<'a, T>, . ) -> PResult<'a, (Vec, bool)> { . self.parse_delim_comma_seq(token::Paren, f) . } . . /// Advance the parser by one token using provided token as the next one. 299,039 ( 0.15%) fn bump_with(&mut self, (next_token, next_spacing): (Token, Spacing)) { . // Bumping after EOF is a bad sign, usually an infinite loop. 138,018 ( 0.07%) if self.prev_token.kind == TokenKind::Eof { . let msg = "attempted to bump the parser past EOF (may be stuck in a loop)"; . self.span_bug(self.token.span, msg); . } . . // Update the current and previous tokens. 92,012 ( 0.04%) self.prev_token = mem::replace(&mut self.token, next_token); 23,003 ( 0.01%) self.token_spacing = next_spacing; . . // Diagnostics. 23,003 ( 0.01%) self.expected_tokens.clear(); . } . . /// Advance the parser by one token. 184,024 ( 0.09%) pub fn bump(&mut self) { 92,012 ( 0.04%) let next_token = self.next_tok(self.token.span); 138,018 ( 0.07%) self.bump_with(next_token); 184,024 ( 0.09%) } . . /// Look-ahead `dist` tokens of `self.token` and get access to that token there. . /// When `dist == 0` then the current token is looked at. 40 ( 0.00%) pub fn look_ahead(&self, dist: usize, looker: impl FnOnce(&Token) -> R) -> R { 122 ( 0.00%) if dist == 0 { 49 ( 0.00%) return looker(&self.token); . } . 466 ( 0.00%) let frame = &self.token_cursor.frame; 506 ( 0.00%) if frame.delim != DelimToken::NoDelim { . let all_normal = (0..dist).all(|i| { 1,092 ( 0.00%) let token = frame.tree_cursor.look_ahead(i); 1,474 ( 0.00%) !matches!(token, Some(TokenTree::Delimited(_, DelimToken::NoDelim, _))) . }); . if all_normal { 1,792 ( 0.00%) return match frame.tree_cursor.look_ahead(dist - 1) { 662 ( 0.00%) Some(tree) => match tree { 308 ( 0.00%) TokenTree::Token(token) => looker(token), . TokenTree::Delimited(dspan, delim, _) => { 201 ( 0.00%) looker(&Token::new(token::OpenDelim(*delim), dspan.open)) . } . }, 181 ( 0.00%) None => looker(&Token::new(token::CloseDelim(frame.delim), frame.span.close)), . }; . } . } . . let mut cursor = self.token_cursor.clone(); . let mut i = 0; 157 ( 0.00%) let mut token = Token::dummy(); 60 ( 0.00%) while i < dist { 1,259 ( 0.00%) token = cursor.next().0; 542 ( 0.00%) if matches!( 330 ( 0.00%) token.kind, . token::OpenDelim(token::NoDelim) | token::CloseDelim(token::NoDelim) . ) { . continue; . } 25 ( 0.00%) i += 1; . } 11 ( 0.00%) return looker(&token); 45 ( 0.00%) } . . /// Returns whether any of the given keywords are `dist` tokens ahead of the current one. 405 ( 0.00%) fn is_keyword_ahead(&self, dist: usize, kws: &[Symbol]) -> bool { 111 ( 0.00%) self.look_ahead(dist, |t| kws.iter().any(|&kw| t.is_keyword(kw))) 405 ( 0.00%) } . . /// Parses asyncness: `async` or nothing. . fn parse_asyncness(&mut self) -> Async { . if self.eat_keyword(kw::Async) { . let span = self.prev_token.uninterpolated_span(); . Async::Yes { span, closure_id: DUMMY_NODE_ID, return_impl_trait_id: DUMMY_NODE_ID } . } else { . Async::No . } . } . . /// Parses unsafety: `unsafe` or nothing. 46 ( 0.00%) fn parse_unsafety(&mut self) -> Unsafe { . if self.eat_keyword(kw::Unsafe) { . Unsafe::Yes(self.prev_token.uninterpolated_span()) . } else { . Unsafe::No . } 184 ( 0.00%) } . . /// Parses constness: `const` or nothing. 480 ( 0.00%) fn parse_constness(&mut self) -> Const { . // Avoid const blocks to be parsed as const items 163 ( 0.00%) if self.look_ahead(1, |t| t != &token::OpenDelim(DelimToken::Brace)) . && self.eat_keyword(kw::Const) . { . Const::Yes(self.prev_token.uninterpolated_span()) . } else { . Const::No . } 840 ( 0.00%) } . . /// Parses inline const expressions. . fn parse_const_block(&mut self, span: Span, pat: bool) -> PResult<'a, P> { . if pat { . self.sess.gated_spans.gate(sym::inline_const_pat, span); . } else { . self.sess.gated_spans.gate(sym::inline_const, span); . } -- line 1104 ---------------------------------------- -- line 1108 ---------------------------------------- . id: DUMMY_NODE_ID, . value: self.mk_expr(blk.span, ExprKind::Block(blk, None), AttrVec::new()), . }; . let blk_span = anon_const.value.span; . Ok(self.mk_expr(span.to(blk_span), ExprKind::ConstBlock(anon_const), AttrVec::new())) . } . . /// Parses mutability (`mut` or nothing). 12 ( 0.00%) fn parse_mutability(&mut self) -> Mutability { . if self.eat_keyword(kw::Mut) { Mutability::Mut } else { Mutability::Not } 32 ( 0.00%) } . . /// Possibly parses mutability (`const` or `mut`). . fn parse_const_or_mut(&mut self) -> Option { . if self.eat_keyword(kw::Mut) { . Some(Mutability::Mut) . } else if self.eat_keyword(kw::Const) { . Some(Mutability::Not) . } else { . None . } . } . . fn parse_field_name(&mut self) -> PResult<'a, Ident> { 8 ( 0.00%) if let token::Literal(token::Lit { kind: token::Integer, symbol, suffix }) = self.token.kind . { . self.expect_no_suffix(self.token.span, "a tuple index", suffix); . self.bump(); . Ok(Ident::new(symbol, self.prev_token.span)) . } else { 12 ( 0.00%) self.parse_ident_common(true) . } . } . . fn parse_mac_args(&mut self) -> PResult<'a, P> { 88 ( 0.00%) self.parse_mac_args_common(true).map(P) . } . . fn parse_attr_args(&mut self) -> PResult<'a, MacArgs> { 171 ( 0.00%) self.parse_mac_args_common(false) . } . 783 ( 0.00%) fn parse_mac_args_common(&mut self, delimited_only: bool) -> PResult<'a, MacArgs> { 696 ( 0.00%) Ok( 567 ( 0.00%) if self.check(&token::OpenDelim(DelimToken::Paren)) 99 ( 0.00%) || self.check(&token::OpenDelim(DelimToken::Bracket)) 99 ( 0.00%) || self.check(&token::OpenDelim(DelimToken::Brace)) . { 272 ( 0.00%) match self.parse_token_tree() { 340 ( 0.00%) TokenTree::Delimited(dspan, delim, tokens) => . // We've confirmed above that there is a delimiter so unwrapping is OK. . { 136 ( 0.00%) MacArgs::Delimited(dspan, MacDelimiter::from_token(delim).unwrap(), tokens) . } . _ => unreachable!(), . } 38 ( 0.00%) } else if !delimited_only { . if self.eat(&token::Eq) { . let eq_span = self.prev_token.span; . . // Collect tokens because they are used during lowering to HIR. . let expr = self.parse_expr_force_collect()?; . let span = expr.span; . . let token_kind = token::Interpolated(Lrc::new(token::NtExpr(expr))); -- line 1172 ---------------------------------------- -- line 1173 ---------------------------------------- . MacArgs::Eq(eq_span, Token::new(token_kind, span)) . } else { . MacArgs::Empty . } . } else { . return self.unexpected(); . }, . ) 609 ( 0.00%) } . . fn parse_or_use_outer_attributes( . &mut self, . already_parsed_attrs: Option, . ) -> PResult<'a, AttrWrapper> { 231 ( 0.00%) if let Some(attrs) = already_parsed_attrs { . Ok(attrs) . } else { 134 ( 0.00%) self.parse_outer_attributes() . } . } . . /// Parses a single token tree from the input. 1,168 ( 0.00%) pub(crate) fn parse_token_tree(&mut self) -> TokenTree { 522 ( 0.00%) match self.token.kind { . token::OpenDelim(..) => { . let depth = self.token_cursor.stack.len(); . . // We keep advancing the token cursor until we hit . // the matching `CloseDelim` token. 47,038 ( 0.02%) while !(depth == self.token_cursor.stack.len() . && matches!(self.token.kind, token::CloseDelim(_))) . { . // Advance one token at a time, so `TokenCursor::next()` . // can capture these tokens if necessary. 43,104 ( 0.02%) self.bump(); . } . // We are still inside the frame corresponding . // to the delimited stream we captured, so grab . // the tokens from this frame. . let frame = &self.token_cursor.frame; 250 ( 0.00%) let stream = frame.tree_cursor.stream.clone(); 250 ( 0.00%) let span = frame.span; 125 ( 0.00%) let delim = frame.delim; . // Consume close delimiter 250 ( 0.00%) self.bump(); 625 ( 0.00%) TokenTree::Delimited(span, delim, stream) . } . token::CloseDelim(_) | token::Eof => unreachable!(), . _ => { 42 ( 0.00%) self.bump(); 105 ( 0.00%) TokenTree::Token(self.prev_token.clone()) . } . } 1,022 ( 0.00%) } . . /// Parses a stream of tokens into a list of `TokenTree`s, up to EOF. . pub fn parse_all_token_trees(&mut self) -> PResult<'a, Vec> { . let mut tts = Vec::new(); . while self.token != token::Eof { . tts.push(self.parse_token_tree()); . } . Ok(tts) -- line 1234 ---------------------------------------- -- line 1244 ---------------------------------------- . } . TokenStream::new(result) . } . . /// Evaluates the closure with restrictions in place. . /// . /// Afters the closure is evaluated, restrictions are reset. . fn with_res(&mut self, res: Restrictions, f: impl FnOnce(&mut Self) -> T) -> T { 84 ( 0.00%) let old = self.restrictions; 96 ( 0.00%) self.restrictions = res; . let res = f(self); 100 ( 0.00%) self.restrictions = old; . res . } . 632 ( 0.00%) fn is_crate_vis(&self) -> bool { 395 ( 0.00%) self.token.is_keyword(kw::Crate) && self.look_ahead(1, |t| t != &token::ModSep) 711 ( 0.00%) } . . /// Parses `pub`, `pub(crate)` and `pub(in path)` plus shortcuts `crate` for `pub(crate)`, . /// `pub(self)` for `pub(in self)` and `pub(super)` for `pub(in super)`. . /// If the following element can't be a tuple (i.e., it's a function definition), then . /// it's not a tuple struct field), and the contents within the parentheses aren't valid, . /// so emit a proper diagnostic. . // Public for rustfmt usage. 710 ( 0.00%) pub fn parse_visibility(&mut self, fbt: FollowedByType) -> PResult<'a, Visibility> { 142 ( 0.00%) maybe_whole!(self, NtVis, |x| x); . 71 ( 0.00%) self.expected_tokens.push(TokenType::Keyword(kw::Crate)); 284 ( 0.00%) if self.is_crate_vis() { . self.bump(); // `crate` . self.sess.gated_spans.gate(sym::crate_visibility_modifier, self.prev_token.span); . return Ok(Visibility { . span: self.prev_token.span, . kind: VisibilityKind::Crate(CrateSugar::JustCrate), . tokens: None, . }); . } . . if !self.eat_keyword(kw::Pub) { . // We need a span for our `Spanned`, but there's inherently no . // keyword to grab a span from for inherited visibility; an empty span at the . // beginning of the current token would seem to be the "Schelling span". 56 ( 0.00%) return Ok(Visibility { 168 ( 0.00%) span: self.token.span.shrink_to_lo(), . kind: VisibilityKind::Inherited, . tokens: None, . }); . } 15 ( 0.00%) let lo = self.prev_token.span; . 75 ( 0.00%) if self.check(&token::OpenDelim(token::Paren)) { . // We don't `self.bump()` the `(` yet because this might be a struct definition where . // `()` or a tuple might be allowed. For example, `struct Struct(pub (), pub (usize));`. . // Because of this, we only `bump` the `(` if we're assured it is appropriate to do so . // by the following tokens. . if self.is_keyword_ahead(1, &[kw::Crate]) && self.look_ahead(2, |t| t != &token::ModSep) . // account for `pub(crate::foo)` . { . // Parse `pub(crate)`. -- line 1303 ---------------------------------------- -- line 1338 ---------------------------------------- . } else if let FollowedByType::No = fbt { . // Provide this diagnostic if a type cannot follow; . // in particular, if this is not a tuple struct. . self.recover_incorrect_vis_restriction()?; . // Emit diagnostic, but continue with public visibility. . } . } . 45 ( 0.00%) Ok(Visibility { span: lo, kind: VisibilityKind::Public, tokens: None }) 639 ( 0.00%) } . . /// Recovery for e.g. `pub(something) fn ...` or `struct X { pub(something) y: Z }` . fn recover_incorrect_vis_restriction(&mut self) -> PResult<'a, ()> { . self.bump(); // `(` . let path = self.parse_path(PathStyle::Mod)?; . self.expect(&token::CloseDelim(token::Paren))?; // `)` . . let msg = "incorrect visibility restriction"; -- line 1355 ---------------------------------------- -- line 1370 ---------------------------------------- . ) . .emit(); . . Ok(()) . } . . /// Parses `extern string_literal?`. . fn parse_extern(&mut self) -> Extern { 11 ( 0.00%) if self.eat_keyword(kw::Extern) { Extern::from_abi(self.parse_abi()) } else { Extern::None } . } . . /// Parses a string literal as an ABI spec. . fn parse_abi(&mut self) -> Option { . match self.parse_str_lit() { . Ok(str_lit) => Some(str_lit), . Err(Some(lit)) => match lit.kind { . ast::LitKind::Err(_) => None, -- line 1386 ---------------------------------------- -- line 1395 ---------------------------------------- . .emit(); . None . } . }, . Err(None) => None, . } . } . 80 ( 0.00%) pub fn collect_tokens_no_attrs( . &mut self, . f: impl FnOnce(&mut Self) -> PResult<'a, R>, . ) -> PResult<'a, R> { . // The only reason to call `collect_tokens_no_attrs` is if you want tokens, so use . // `ForceCollect::Yes` . self.collect_tokens_trailing_token( . AttrWrapper::empty(), . ForceCollect::Yes, 8 ( 0.00%) |this, _attrs| Ok((f(this)?, TrailingToken::None)), . ) 80 ( 0.00%) } . . /// `::{` or `::*` 2,616 ( 0.00%) fn is_import_coupler(&mut self) -> bool { 1,308 ( 0.00%) self.check(&token::ModSep) . && self.look_ahead(1, |t| { 888 ( 0.00%) *t == token::OpenDelim(token::Brace) || *t == token::BinOp(token::Star) . }) 2,511 ( 0.00%) } . . pub fn clear_expected_tokens(&mut self) { . self.expected_tokens.clear(); . } . } . . crate fn make_unclosed_delims_error( . unmatched: UnmatchedBrace, -- line 1430 ---------------------------------------- -- line 1450 ---------------------------------------- . err.span_label(sp, "closing delimiter possibly meant for this"); . } . if let Some(sp) = unmatched.unclosed_span { . err.span_label(sp, "unclosed delimiter"); . } . Some(err) . } . 1,032 ( 0.00%) pub fn emit_unclosed_delims(unclosed_delims: &mut Vec, sess: &ParseSess) { 516 ( 0.00%) *sess.reached_eof.borrow_mut() |= . unclosed_delims.iter().any(|unmatched_delim| unmatched_delim.found_delim.is_none()); 516 ( 0.00%) for unmatched in unclosed_delims.drain(..) { . if let Some(mut e) = make_unclosed_delims_error(unmatched, sess) { . e.emit(); . } . } 1,032 ( 0.00%) } . . /// A helper struct used when building an `AttrAnnotatedTokenStream` from . /// a `LazyTokenStream`. Both delimiter and non-delimited tokens . /// are stored as `FlatToken::Token`. A vector of `FlatToken`s . /// is then 'parsed' to build up an `AttrAnnotatedTokenStream` with nested . /// `AttrAnnotatedTokenTree::Delimited` tokens . #[derive(Debug, Clone)] . pub enum FlatToken { -- line 1474 ---------------------------------------- 86,744 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/std/src/thread/local.rs -------------------------------------------------------------------------------- Ir -- line 173 ---------------------------------------- . #[unstable(feature = "thread_local_internals", reason = "should not be necessary", issue = "none")] . #[macro_export] . #[allow_internal_unstable(thread_local_internals, cfg_target_thread_local, thread_local)] . #[allow_internal_unsafe] . macro_rules! __thread_local_inner { . // used to generate the `LocalKey` value for const-initialized thread locals . (@key $t:ty, const $init:expr) => {{ . #[cfg_attr(not(windows), inline)] // see comments below 4 ( 0.00%) unsafe fn __getit() -> $crate::option::Option<&'static $t> { . const INIT_EXPR: $t = $init; . . // wasm without atomics maps directly to `static mut`, and dtors . // aren't implemented because thread dtors aren't really a thing . // on wasm right now . // . // FIXME(#84224) this should come after the `target_thread_local` . // block. -- line 189 ---------------------------------------- -- line 211 ---------------------------------------- . } . . // 0 == dtor not registered . // 1 == dtor registered, dtor not run . // 2 == dtor registered and is running or has run . #[thread_local] . static mut STATE: u8 = 0; . 8 ( 0.00%) unsafe extern "C" fn destroy(ptr: *mut u8) { . let ptr = ptr as *mut $t; . . unsafe { . debug_assert_eq!(STATE, 1); 12 ( 0.00%) STATE = 2; . $crate::ptr::drop_in_place(ptr); . } 8 ( 0.00%) } . . unsafe { 48 ( 0.00%) match STATE { . // 0 == we haven't registered a destructor, so do . // so now. . 0 => { . $crate::thread::__FastLocalKeyInner::<$t>::register_dtor( . $crate::ptr::addr_of_mut!(VAL) as *mut u8, . destroy, . ); 8 ( 0.00%) STATE = 1; . Some(&VAL) . } . // 1 == the destructor is registered and the value . // is valid, so return the pointer. . 1 => Some(&VAL), . // otherwise the destructor has already run, so we . // can't give access. . _ => None, -- line 246 ---------------------------------------- -- line 257 ---------------------------------------- . { . #[inline] . const fn __init() -> $t { INIT_EXPR } . static __KEY: $crate::thread::__OsLocalKeyInner<$t> = . $crate::thread::__OsLocalKeyInner::new(); . #[allow(unused_unsafe)] . unsafe { __KEY.get(__init) } . } 52,721 ( 0.03%) } . . unsafe { . $crate::thread::LocalKey::new(__getit) . } . }}; . . // used to generate the `LocalKey` value for `thread_local!` . (@key $t:ty, $init:expr) => { -- line 273 ---------------------------------------- -- line 318 ---------------------------------------- . static __KEY: $crate::thread::__OsLocalKeyInner<$t> = . $crate::thread::__OsLocalKeyInner::new(); . . // FIXME: remove the #[allow(...)] marker when macros don't . // raise warning for missing/extraneous unsafe blocks anymore. . // See https://github.com/rust-lang/rust/issues/74838. . #[allow(unused_unsafe)] . unsafe { __KEY.get(__init) } 190,771 ( 0.09%) } . . unsafe { . $crate::thread::LocalKey::new(__getit) . } . } . }; . ($(#[$attr:meta])* $vis:vis $name:ident, $t:ty, $($init:tt)*) => { . $(#[$attr])* $vis const $name: $crate::thread::LocalKey<$t> = -- line 334 ---------------------------------------- -- line 377 ---------------------------------------- . /// this key yet. . /// . /// # Panics . /// . /// This function will `panic!()` if the key currently has its . /// destructor running, and it **may** panic if the destructor has . /// previously been run for this thread. . #[stable(feature = "rust1", since = "1.0.0")] 12 ( 0.00%) pub fn with(&'static self, f: F) -> R . where . F: FnOnce(&T) -> R, . { 17 ( 0.00%) self.try_with(f).expect( . "cannot access a Thread Local Storage value \ . during or after destruction", . ) 16 ( 0.00%) } . . /// Acquires a reference to the value in this TLS key. . /// . /// This will lazily initialize the value if this thread has not referenced . /// this key yet. If the key has been destroyed (which may happen if this is called . /// in a destructor), this function will return an [`AccessError`]. . /// . /// # Panics -- line 401 ---------------------------------------- -- line 404 ---------------------------------------- . /// key's initializer panics. . #[stable(feature = "thread_local_try_with", since = "1.26.0")] . #[inline] . pub fn try_with(&'static self, f: F) -> Result . where . F: FnOnce(&T) -> R, . { . unsafe { 160,726 ( 0.08%) let thread_local = (self.inner)().ok_or(AccessError)?; 122,643 ( 0.06%) Ok(f(thread_local)) . } . } . } . . mod lazy { . use crate::cell::UnsafeCell; . use crate::hint; . use crate::mem; -- line 421 ---------------------------------------- -- line 434 ---------------------------------------- . // the inner cell nor mutable reference to the Option inside said . // cell. This make it safe to hand a reference, though the lifetime . // of 'static is itself unsafe, making the get method unsafe. . unsafe { (*self.inner.get()).as_ref() } . } . . /// The caller must ensure that no reference is active: this method . /// needs unique access. 9 ( 0.00%) pub unsafe fn initialize T>(&self, init: F) -> &'static T { . // Execute the initialization up front, *then* move it into our slot, . // just in case initialization fails. . let value = init(); . let ptr = self.inner.get(); . . // SAFETY: . // . // note that this can in theory just be `*ptr = Some(value)`, but due to -- line 450 ---------------------------------------- -- line 475 ---------------------------------------- . // always work it empirically doesn't seem to always get optimized away, . // which means that using something like `try_with` can pull in . // panicking code and cause a large size bloat. . match *ptr { . Some(ref x) => x, . None => hint::unreachable_unchecked(), . } . } 10 ( 0.00%) } . . /// The other methods hand out references while taking &self. . /// As such, callers of this method must ensure no `&` and `&mut` are . /// available and used at the same time. . #[allow(unused)] . pub unsafe fn take(&mut self) -> Option { . // SAFETY: See doc comment for this method. . unsafe { (*self.inner.get()).take() } -- line 491 ---------------------------------------- -- line 596 ---------------------------------------- . // SAFETY: See the definitions of `LazyKeyInner::get` and . // `try_initialize` for more information. . // . // The caller must ensure no mutable references are ever active to . // the inner cell or the inner T when this is called. . // The `try_initialize` is dependant on the passed `init` function . // for this. . unsafe { 69,868 ( 0.03%) match self.inner.get() { . Some(val) => Some(val), 18 ( 0.00%) None => self.try_initialize(init), . } . } . } . . // `try_initialize` is only called once per fast thread local variable, . // except in corner cases where thread_local dtors reference other . // thread_local's, or it is being recursively initialized. . // . // Macos: Inlining this function can cause two `tlv_get_addr` calls to . // be performed for every call to `Key::get`. . // LLVM issue: https://bugs.llvm.org/show_bug.cgi?id=41722 . #[inline(never)] 8 ( 0.00%) unsafe fn try_initialize T>(&self, init: F) -> Option<&'static T> { . // SAFETY: See comment above (this function doc). . if !mem::needs_drop::() || unsafe { self.try_register_dtor() } { . // SAFETY: See comment above (his function doc). 6 ( 0.00%) Some(unsafe { self.inner.initialize(init) }) . } else { . None . } 8 ( 0.00%) } . . // `try_register_dtor` is only called once per fast thread local . // variable, except in corner cases where thread_local dtors reference . // other thread_local's, or it is being recursively initialized. . unsafe fn try_register_dtor(&self) -> bool { 6 ( 0.00%) match self.dtor_state.get() { . DtorState::Unregistered => { . // SAFETY: dtor registration happens before initialization. . // Passing `self` as a pointer while using `destroy_value` . // is safe because the function will build a pointer to a . // Key, which is the type of self and so find the correct . // size. 6 ( 0.00%) unsafe { register_dtor(self as *const _ as *mut u8, destroy_value::) }; . self.dtor_state.set(DtorState::Registered); . true . } . DtorState::Registered => { . // recursively initialized . true . } . DtorState::RunningOrHasRun => false, . } . } . } . 4 ( 0.00%) unsafe extern "C" fn destroy_value(ptr: *mut u8) { . let ptr = ptr as *mut Key; . . // SAFETY: . // . // The pointer `ptr` has been built just above and comes from . // `try_register_dtor` where it is originally a Key coming from `self`, . // making it non-NUL and of the correct type. . // -- line 661 ---------------------------------------- 4 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs -------------------------------------------------------------------------------- Ir -- line 80 ---------------------------------------- . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_math", since = "1.32.0")] . #[doc(alias = "popcount")] . #[doc(alias = "popcnt")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn count_ones(self) -> u32 { 4,620 ( 0.00%) intrinsics::ctpop(self as $ActualT) as u32 . } . . /// Returns the number of zeros in the binary representation of `self`. . /// . /// # Examples . /// . /// Basic usage: . /// -- line 96 ---------------------------------------- -- line 118 ---------------------------------------- . /// assert_eq!(n.leading_zeros(), 2); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn leading_zeros(self) -> u32 { 76,258 ( 0.04%) intrinsics::ctlz(self as $ActualT) as u32 . } . . /// Returns the number of trailing zeros in the binary representation . /// of `self`. . /// . /// # Examples . /// . /// Basic usage: -- line 134 ---------------------------------------- -- line 139 ---------------------------------------- . /// assert_eq!(n.trailing_zeros(), 3); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn trailing_zeros(self) -> u32 { 60,058 ( 0.03%) intrinsics::cttz(self) as u32 . } . . /// Returns the number of leading ones in the binary representation of `self`. . /// . /// # Examples . /// . /// Basic usage: . /// -- line 155 ---------------------------------------- -- line 204 ---------------------------------------- . #[doc = concat!("assert_eq!(n.rotate_left(", $rot, "), m);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn rotate_left(self, n: u32) -> Self { 2,175,381 ( 1.06%) intrinsics::rotate_left(self, n as $SelfT) . } . . /// Shifts the bits to the right by a specified amount, `n`, . /// wrapping the truncated bits to the beginning of the resulting . /// integer. . /// . /// Please note this isn't the same operation as the `>>` shifting operator! . /// -- line 220 ---------------------------------------- -- line 456 ---------------------------------------- . )] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_unstable(feature = "const_inherent_unchecked_arith", issue = "85122")] . #[inline(always)] . pub const unsafe fn unchecked_add(self, rhs: Self) -> Self { . // SAFETY: the caller must uphold the safety contract for . // `unchecked_add`. 153,439 ( 0.07%) unsafe { intrinsics::unchecked_add(self, rhs) } . } . . /// Checked addition with a signed integer. Computes `self + rhs`, . /// returning `None` if overflow occurred. . /// . /// # Examples . /// . /// Basic usage: -- line 472 ---------------------------------------- -- line 525 ---------------------------------------- . )] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_unstable(feature = "const_inherent_unchecked_arith", issue = "85122")] . #[inline(always)] . pub const unsafe fn unchecked_sub(self, rhs: Self) -> Self { . // SAFETY: the caller must uphold the safety contract for . // `unchecked_sub`. 2,790 ( 0.00%) unsafe { intrinsics::unchecked_sub(self, rhs) } . } . . /// Checked integer multiplication. Computes `self * rhs`, returning . /// `None` if overflow occurred. . /// . /// # Examples . /// . /// Basic usage: -- line 541 ---------------------------------------- -- line 1035 ---------------------------------------- . #[doc = concat!("assert_eq!(", stringify!($SelfT), "::MAX.saturating_add(127), ", stringify!($SelfT), "::MAX);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_stable(feature = "const_saturating_int_methods", since = "1.47.0")] . #[inline(always)] . pub const fn saturating_add(self, rhs: Self) -> Self { 6,091 ( 0.00%) intrinsics::saturating_add(self, rhs) . } . . /// Saturating addition with a signed integer. Computes `self + rhs`, . /// saturating at the numeric bounds instead of overflowing. . /// . /// # Examples . /// . /// Basic usage: -- line 1051 ---------------------------------------- -- line 1084 ---------------------------------------- . #[doc = concat!("assert_eq!(13", stringify!($SelfT), ".saturating_sub(127), 0);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_stable(feature = "const_saturating_int_methods", since = "1.47.0")] . #[inline(always)] . pub const fn saturating_sub(self, rhs: Self) -> Self { 146 ( 0.00%) intrinsics::saturating_sub(self, rhs) . } . . /// Saturating integer multiplication. Computes `self * rhs`, . /// saturating at the numeric bounds instead of overflowing. . /// . /// # Examples . /// . /// Basic usage: -- line 1100 ---------------------------------------- -- line 1175 ---------------------------------------- . #[doc = concat!("assert_eq!(200", stringify!($SelfT), ".wrapping_add(", stringify!($SelfT), "::MAX), 199);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn wrapping_add(self, rhs: Self) -> Self { 1,395,036 ( 0.68%) intrinsics::wrapping_add(self, rhs) . } . . /// Wrapping (modular) addition with a signed integer. Computes . /// `self + rhs`, wrapping around at the boundary of the type. . /// . /// # Examples . /// . /// Basic usage: -- line 1191 ---------------------------------------- -- line 1217 ---------------------------------------- . #[doc = concat!("assert_eq!(100", stringify!($SelfT), ".wrapping_sub(", stringify!($SelfT), "::MAX), 101);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn wrapping_sub(self, rhs: Self) -> Self { 235,605 ( 0.12%) intrinsics::wrapping_sub(self, rhs) . } . . /// Wrapping (modular) multiplication. Computes `self * . /// rhs`, wrapping around at the boundary of the type. . /// . /// # Examples . /// . /// Basic usage: -- line 1233 ---------------------------------------- -- line 1240 ---------------------------------------- . /// assert_eq!(25u8.wrapping_mul(12), 44); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn wrapping_mul(self, rhs: Self) -> Self { 638,808 ( 0.31%) intrinsics::wrapping_mul(self, rhs) . } . . /// Wrapping (modular) division. Computes `self / rhs`. . /// Wrapped division on unsigned types is just normal division. . /// There's no way wrapping could ever happen. . /// This function exists, so that all operations . /// are accounted for in the wrapping operations. . /// -- line 1256 ---------------------------------------- -- line 1492 ---------------------------------------- . #[doc = concat!("assert_eq!(", stringify!($SelfT), "::MAX.overflowing_add(1), (0, true));")] . /// ``` . #[stable(feature = "wrapping", since = "1.7.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn overflowing_add(self, rhs: Self) -> (Self, bool) { 84,180 ( 0.04%) let (a, b) = intrinsics::add_with_overflow(self as $ActualT, rhs as $ActualT); . (a as Self, b) . } . . /// Calculates `self + rhs + carry` without the ability to overflow. . /// . /// Performs "ternary addition" which takes in an extra bit to add, and may return an . /// additional bit of overflow. This allows for chaining together multiple additions . /// to create "big integers" which represent larger values. -- line 1508 ---------------------------------------- -- line 1588 ---------------------------------------- . #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".overflowing_sub(1), (", stringify!($SelfT), "::MAX, true));")] . /// ``` . #[stable(feature = "wrapping", since = "1.7.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn overflowing_sub(self, rhs: Self) -> (Self, bool) { 32,005 ( 0.02%) let (a, b) = intrinsics::sub_with_overflow(self as $ActualT, rhs as $ActualT); . (a as Self, b) . } . . /// Calculates `self - rhs - borrow` without the ability to overflow. . /// . /// Performs "ternary subtraction" which takes in an extra bit to subtract, and may return . /// an additional bit of overflow. This allows for chaining together multiple subtractions . /// to create "big integers" which represent larger values. -- line 1604 ---------------------------------------- -- line 1674 ---------------------------------------- . /// assert_eq!(1_000_000_000u32.overflowing_mul(10), (1410065408, true)); . /// ``` . #[stable(feature = "wrapping", since = "1.7.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn overflowing_mul(self, rhs: Self) -> (Self, bool) { 127,603 ( 0.06%) let (a, b) = intrinsics::mul_with_overflow(self as $ActualT, rhs as $ActualT); . (a as Self, b) . } . . /// Calculates the divisor when `self` is divided by `rhs`. . /// . /// Returns a tuple of the divisor along with a boolean indicating . /// whether an arithmetic overflow would occur. Note that for unsigned . /// integers overflow never occurs, so the second value is always -- line 1690 ---------------------------------------- -- line 2132 ---------------------------------------- . #[doc = concat!("assert!(16", stringify!($SelfT), ".is_power_of_two());")] . #[doc = concat!("assert!(!10", stringify!($SelfT), ".is_power_of_two());")] . /// ``` . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_is_power_of_two", since = "1.32.0")] . #[inline(always)] . pub const fn is_power_of_two(self) -> bool { 162 ( 0.00%) self.count_ones() == 1 . } . . // Returns one less than next power of two. . // (For 8u8 next power of two is 8u8 and for 6u8 it is 8u8) . // . // 8u8.one_less_than_next_power_of_two() == 7 . // 6u8.one_less_than_next_power_of_two() == 7 . // . // This method cannot overflow, as in the `next_power_of_two` . // overflow cases it instead ends up returning the maximum value . // of the type, and can return 0 for 0. . #[inline] . #[rustc_const_stable(feature = "const_int_pow", since = "1.50.0")] . const fn one_less_than_next_power_of_two(self) -> Self { 586 ( 0.00%) if self <= 1 { return 0; } . 1,701 ( 0.00%) let p = self - 1; . // SAFETY: Because `p > 0`, it cannot consist entirely of leading zeros. . // That means the shift is always in-bounds, and some processors . // (such as intel pre-haswell) have more efficient ctlz . // intrinsics when the argument is non-zero. 5,048 ( 0.00%) let z = unsafe { intrinsics::ctlz_nonzero(p) }; 1,684 ( 0.00%) <$SelfT>::MAX >> z . } . . /// Returns the smallest power of two greater than or equal to `self`. . /// . /// When return value overflows (i.e., `self > (1 << (N-1))` for type . /// `uN`), it panics in debug mode and the return value is wrapped to 0 in . /// release mode (the only situation in which method can return 0). . /// -- line 2171 ---------------------------------------- -- line 2179 ---------------------------------------- . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_int_pow", since = "1.50.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline] . #[rustc_inherit_overflow_checks] . pub const fn next_power_of_two(self) -> Self { 2,780 ( 0.00%) self.one_less_than_next_power_of_two() + 1 . } . . /// Returns the smallest power of two greater than or equal to `n`. If . /// the next power of two is greater than the type's maximum value, . /// `None` is returned, otherwise the power of two is wrapped in `Some`. . /// . /// # Examples . /// -- line 2195 ---------------------------------------- 7,722 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/encoder.rs -------------------------------------------------------------------------------- Ir -- line 83 ---------------------------------------- . if $self.is_proc_macro { . return Lazy::empty(); . } . }; . } . . macro_rules! encoder_methods { . ($($name:ident($ty:ty);)*) => { 24,165 ( 0.01%) $(fn $name(&mut self, value: $ty) -> Result<(), Self::Error> { . self.opaque.$name(value) 28,998 ( 0.01%) })* . } . } . . impl<'a, 'tcx> Encoder for EncodeContext<'a, 'tcx> { . type Error = ::Error; . . #[inline] . fn emit_unit(&mut self) -> Result<(), Self::Error> { -- line 101 ---------------------------------------- -- line 125 ---------------------------------------- . emit_raw_bytes(&[u8]); . } . } . . impl<'a, 'tcx, T: Encodable>> Encodable> . for Lazy . { . fn encode(&self, e: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { 512 ( 0.00%) e.emit_lazy_distance(*self) . } . } . . impl<'a, 'tcx, T: Encodable>> Encodable> . for Lazy<[T]> . { 10 ( 0.00%) fn encode(&self, e: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { . e.emit_usize(self.meta)?; 94 ( 0.00%) if self.meta == 0 { . return Ok(()); . } 209 ( 0.00%) e.emit_lazy_distance(*self) . } . } . . impl<'a, 'tcx, I: Idx, T: Encodable>> Encodable> . for Lazy> . where . Option: FixedSizeEncoding, . { . fn encode(&self, e: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { . e.emit_usize(self.meta)?; 144 ( 0.00%) e.emit_lazy_distance(*self) . } . } . . impl<'a, 'tcx> Encodable> for CrateNum { 1,008 ( 0.00%) fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { 1,253 ( 0.00%) if *self != LOCAL_CRATE && s.is_proc_macro { . panic!("Attempted to encode non-local CrateNum {:?} for proc-macro crate", self); . } . s.emit_u32(self.as_u32()) 864 ( 0.00%) } . } . . impl<'a, 'tcx> Encodable> for DefIndex { 595 ( 0.00%) fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { . s.emit_u32(self.as_u32()) 714 ( 0.00%) } . } . . impl<'a, 'tcx> Encodable> for ExpnIndex { . fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { . s.emit_u32(self.as_u32()) . } . } . . impl<'a, 'tcx> Encodable> for SyntaxContext { 55,100 ( 0.03%) fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { 33,060 ( 0.02%) rustc_span::hygiene::raw_encode_syntax_context(*self, &s.hygiene_ctxt, s) 66,120 ( 0.03%) } . } . . impl<'a, 'tcx> Encodable> for ExpnId { . fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { 108 ( 0.00%) if self.krate == LOCAL_CRATE { . // We will only write details for local expansions. Non-local expansions will fetch . // data from the corresponding crate's metadata. . // FIXME(#43047) FIXME(#74731) We may eventually want to avoid relying on external . // metadata from proc-macro crates. 410 ( 0.00%) s.hygiene_ctxt.schedule_expn_data_for_encoding(*self); . } 284 ( 0.00%) self.krate.encode(s)?; . self.local_id.encode(s) . } . } . . impl<'a, 'tcx> Encodable> for Span { 87,848 ( 0.04%) fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> opaque::EncodeResult { 65,886 ( 0.03%) let span = self.data(); . . // Don't serialize any `SyntaxContext`s from a proc-macro crate, . // since we don't load proc-macro dependencies during serialization. . // This means that any hygiene information from macros used *within* . // a proc-macro crate (e.g. invoking a macro that expands to a proc-macro . // definition) will be lost. . // . // This can show up in two ways: -- line 211 ---------------------------------------- -- line 228 ---------------------------------------- . // None of these user-visible effects should result in any . // cross-crate inconsistencies (getting one behavior in the same . // crate, and a different behavior in another crate) due to the . // limited surface that proc-macros can expose. . // . // IMPORTANT: If this is ever changed, be sure to update . // `rustc_span::hygiene::raw_encode_expn_id` to handle . // encoding `ExpnData` for proc-macro crates. 21,962 ( 0.01%) if s.is_proc_macro { . SyntaxContext::root().encode(s)?; . } else { 10,981 ( 0.01%) span.ctxt.encode(s)?; . } . 10,981 ( 0.01%) if self.is_dummy() { . return TAG_PARTIAL_SPAN.encode(s); . } . . // The Span infrastructure should make sure that this invariant holds: . debug_assert!(span.lo <= span.hi); . 54,669 ( 0.03%) if !s.source_file_cache.0.contains(span.lo) { 90 ( 0.00%) let source_map = s.tcx.sess.source_map(); 180 ( 0.00%) let source_file_index = source_map.lookup_source_file_idx(span.lo); 90 ( 0.00%) s.source_file_cache = 180 ( 0.00%) (source_map.files()[source_file_index].clone(), source_file_index); . } . 33,009 ( 0.02%) if !s.source_file_cache.0.contains(span.hi) { . // Unfortunately, macro expansion still sometimes generates Spans . // that malformed in this way. . return TAG_PARTIAL_SPAN.encode(s); . } . . let source_files = s.required_source_files.as_mut().expect("Already encoded SourceMap!"); . // Record the fact that we need to encode the data for this `SourceFile` 10,943 ( 0.01%) source_files.insert(s.source_file_cache.1); . . // There are two possible cases here: . // 1. This span comes from a 'foreign' crate - e.g. some crate upstream of the . // crate we are writing metadata for. When the metadata for *this* crate gets . // deserialized, the deserializer will need to know which crate it originally came . // from. We use `TAG_VALID_SPAN_FOREIGN` to indicate that a `CrateNum` should . // be deserialized after the rest of the span data, which tells the deserializer . // which crate contains the source map information. -- line 272 ---------------------------------------- -- line 274 ---------------------------------------- . // write `TAG_VALID_SPAN_LOCAL` to let the deserializer know that it should use . // our own source map information. . // . // If we're a proc-macro crate, we always treat this as a local `Span`. . // In `encode_source_map`, we serialize foreign `SourceFile`s into our metadata . // if we're a proc-macro crate. . // This allows us to avoid loading the dependencies of proc-macro crates: all of . // the information we need to decode `Span`s is stored in the proc-macro crate. 65,658 ( 0.03%) let (tag, lo, hi) = if s.source_file_cache.0.is_imported() && !s.is_proc_macro { . // To simplify deserialization, we 'rebase' this span onto the crate it originally came from . // (the crate that 'owns' the file it references. These rebased 'lo' and 'hi' values . // are relative to the source map information for the 'foreign' crate whose CrateNum . // we write into the metadata. This allows `imported_source_files` to binary . // search through the 'foreign' crate's source map information, using the . // deserialized 'lo' and 'hi' values directly. . // . // All of this logic ensures that the final result of deserialization is a 'normal' . // Span that can be used without any additional trouble. . let external_start_pos = { . // Introduce a new scope so that we drop the 'lock()' temporary 48 ( 0.00%) match &*s.source_file_cache.0.external_src.lock() { 16 ( 0.00%) ExternalSource::Foreign { original_start_pos, .. } => *original_start_pos, . src => panic!("Unexpected external source {:?}", src), . } . }; 48 ( 0.00%) let lo = (span.lo - s.source_file_cache.0.start_pos) + external_start_pos; 16 ( 0.00%) let hi = (span.hi - s.source_file_cache.0.start_pos) + external_start_pos; . . (TAG_VALID_SPAN_FOREIGN, lo, hi) . } else { 32,781 ( 0.02%) (TAG_VALID_SPAN_LOCAL, span.lo, span.hi) . }; . . tag.encode(s)?; . lo.encode(s)?; . . // Encode length which is usually less than span.hi and profits more . // from the variable-length integer encoding that we use. . let len = hi - lo; . len.encode(s)?; . 21,886 ( 0.01%) if tag == TAG_VALID_SPAN_FOREIGN { . // This needs to be two lines to avoid holding the `s.source_file_cache` . // while calling `cnum.encode(s)` 64 ( 0.00%) let cnum = s.source_file_cache.0.cnum; 48 ( 0.00%) cnum.encode(s)?; . } . . Ok(()) 87,848 ( 0.04%) } . } . . impl<'a, 'tcx> TyEncoder<'tcx> for EncodeContext<'a, 'tcx> { . const CLEAR_CROSS_CRATE: bool = true; . . fn position(&self) -> usize { . self.opaque.position() . } -- line 331 ---------------------------------------- -- line 361 ---------------------------------------- . } . . /// Helper trait to allow overloading `EncodeContext::lazy` for iterators. . trait EncodeContentsForLazy<'a, 'tcx, T: ?Sized + LazyMeta> { . fn encode_contents_for_lazy(self, ecx: &mut EncodeContext<'a, 'tcx>) -> T::Meta; . } . . impl<'a, 'tcx, T: Encodable>> EncodeContentsForLazy<'a, 'tcx, T> for &T { 1,065 ( 0.00%) fn encode_contents_for_lazy(self, ecx: &mut EncodeContext<'a, 'tcx>) { 324 ( 0.00%) self.encode(ecx).unwrap() . } . } . . impl<'a, 'tcx, T: Encodable>> EncodeContentsForLazy<'a, 'tcx, T> for T { 2,020 ( 0.00%) fn encode_contents_for_lazy(self, ecx: &mut EncodeContext<'a, 'tcx>) { 1,026 ( 0.00%) self.encode(ecx).unwrap() 1,149 ( 0.00%) } . } . . impl<'a, 'tcx, I, T: Encodable>> EncodeContentsForLazy<'a, 'tcx, [T]> for I . where . I: IntoIterator, . I::Item: EncodeContentsForLazy<'a, 'tcx, T>, . { 224 ( 0.00%) fn encode_contents_for_lazy(self, ecx: &mut EncodeContext<'a, 'tcx>) -> usize { 538 ( 0.00%) self.into_iter().map(|value| value.encode_contents_for_lazy(ecx)).count() 288 ( 0.00%) } . } . . // Shorthand for `$self.$tables.$table.set($def_id.index, $self.lazy($value))`, which would . // normally need extra variables to avoid errors about multiple mutable borrows. . macro_rules! record { . ($self:ident.$tables:ident.$table:ident[$def_id:expr] <- $value:expr) => {{ . { . let value = $value; . let lazy = $self.lazy(value); . $self.$tables.$table.set($def_id.index, lazy); . } . }}; . } . . impl<'a, 'tcx> EncodeContext<'a, 'tcx> { 725 ( 0.00%) fn emit_lazy_distance( . &mut self, . lazy: Lazy, . ) -> Result<(), ::Error> { . let pos = lazy.position.get(); 529 ( 0.00%) let distance = match self.lazy_state { . LazyState::NoNode => bug!("emit_lazy_distance: outside of a metadata node"), 98 ( 0.00%) LazyState::NodeStart(start) => { . let start = start.get(); 196 ( 0.00%) assert!(pos <= start); . start - pos . } 47 ( 0.00%) LazyState::Previous(last_pos) => { 47 ( 0.00%) assert!( . last_pos <= lazy.position, . "make sure that the calls to `lazy*` \ . are in the same order as the metadata fields", . ); 141 ( 0.00%) lazy.position.get() - last_pos.get() . } . }; 290 ( 0.00%) self.lazy_state = LazyState::Previous(NonZeroUsize::new(pos).unwrap()); . self.emit_usize(distance) 725 ( 0.00%) } . 985 ( 0.00%) fn lazy( . &mut self, . value: impl EncodeContentsForLazy<'a, 'tcx, T>, . ) -> Lazy { . let pos = NonZeroUsize::new(self.position()).unwrap(); . 1,265 ( 0.00%) assert_eq!(self.lazy_state, LazyState::NoNode); 3,697 ( 0.00%) self.lazy_state = LazyState::NodeStart(pos); 2,854 ( 0.00%) let meta = value.encode_contents_for_lazy(self); 1,459 ( 0.00%) self.lazy_state = LazyState::NoNode; . 2,687 ( 0.00%) assert!(pos.get() <= self.position()); . . Lazy::from_position_and_meta(pos, meta) 1,442 ( 0.00%) } . . fn encode_info_for_items(&mut self) { 9 ( 0.00%) self.encode_info_for_mod(CRATE_DEF_ID, self.tcx.hir().root_module()); . . // Proc-macro crates only export proc-macro items, which are looked . // up using `proc_macro_data` 2 ( 0.00%) if self.is_proc_macro { . return; . } . 6 ( 0.00%) self.tcx.hir().visit_all_item_likes(&mut self.as_deep_visitor()); . } . . fn encode_def_path_table(&mut self) { 4 ( 0.00%) let table = self.tcx.resolutions(()).definitions.def_path_table(); 2 ( 0.00%) if self.is_proc_macro { . for def_index in std::iter::once(CRATE_DEF_INDEX) . .chain(self.tcx.resolutions(()).proc_macros.iter().map(|p| p.local_def_index)) . { . let def_key = self.lazy(table.def_key(def_index)); . let def_path_hash = self.lazy(table.def_path_hash(def_index)); . self.tables.def_keys.set(def_index, def_key); . self.tables.def_path_hashes.set(def_index, def_path_hash); . } . } else { 5 ( 0.00%) for (def_index, def_key, def_path_hash) in table.enumerated_keys_and_path_hashes() { . let def_key = self.lazy(def_key); . let def_path_hash = self.lazy(def_path_hash); 424 ( 0.00%) self.tables.def_keys.set(def_index, def_key); 424 ( 0.00%) self.tables.def_path_hashes.set(def_index, def_path_hash); . } . } . } . . fn encode_def_path_hash_map(&mut self) -> Lazy> { . self.lazy(DefPathHashMapRef::BorrowedFromTcx( 2 ( 0.00%) self.tcx.resolutions(()).definitions.def_path_hash_to_def_index_map(), . )) . } . . fn encode_source_map(&mut self) -> Lazy<[rustc_span::SourceFile]> { 2 ( 0.00%) let source_map = self.tcx.sess.source_map(); 3 ( 0.00%) let all_source_files = source_map.files(); . . // By replacing the `Option` with `None`, we ensure that we can't . // accidentally serialize any more `Span`s after the source map encoding . // is done. . let required_source_files = self.required_source_files.take().unwrap(); . . let adapted = all_source_files . .iter() . .enumerate() . .filter(|(idx, source_file)| { . // Only serialize `SourceFile`s that were used . // during the encoding of a `Span` 1,087 ( 0.00%) required_source_files.contains(*idx) && . // Don't serialize imported `SourceFile`s, unless . // we're in a proc-macro crate. 51 ( 0.00%) (!source_file.is_imported() || self.is_proc_macro) . }) . .map(|(_, source_file)| { 6 ( 0.00%) let mut adapted = match source_file.name { . FileName::Real(ref realname) => { 4 ( 0.00%) let mut adapted = (**source_file).clone(); 32 ( 0.00%) adapted.name = FileName::Real(match realname { . RealFileName::LocalPath(path_to_file) => { . // Prepend path of working directory onto potentially . // relative paths, because they could become relative . // to a wrong directory. . // We include `working_dir` as part of the crate hash, . // so it's okay for us to use it as part of the encoded . // metadata. 4 ( 0.00%) let working_dir = &self.tcx.sess.opts.working_dir; 4 ( 0.00%) match working_dir { . RealFileName::LocalPath(absolute) => { . // Although neither working_dir or the file name were subject . // to path remapping, the concatenation between the two may . // be. Hence we need to do a remapping here. . let joined = Path::new(absolute).join(path_to_file); 14 ( 0.00%) let (joined, remapped) = 22 ( 0.00%) source_map.path_mapping().map_prefix(joined); 4 ( 0.00%) if remapped { . RealFileName::Remapped { . local_path: None, . virtual_name: joined, . } . } else { . RealFileName::LocalPath(joined) . } . } -- line 532 ---------------------------------------- -- line 544 ---------------------------------------- . RealFileName::Remapped { local_path: _, virtual_name } => { . RealFileName::Remapped { . // We do not want any local path to be exported into metadata . local_path: None, . virtual_name: virtual_name.clone(), . } . } . }); 4 ( 0.00%) adapted.name_hash = { . let mut hasher: StableHasher = StableHasher::new(); 2 ( 0.00%) adapted.name.hash(&mut hasher); . hasher.finish::() . }; 2 ( 0.00%) Lrc::new(adapted) . } . . // expanded code, not from a file . _ => source_file.clone(), . }; . . // We're serializing this `SourceFile` into our crate metadata, . // so mark it as coming from this crate. . // This also ensures that we don't try to deserialize the . // `CrateNum` for a proc-macro dependency - since proc macro . // dependencies aren't loaded when we deserialize a proc-macro, . // trying to remap the `CrateNum` would fail. 4 ( 0.00%) if self.is_proc_macro { . Lrc::make_mut(&mut adapted).cnum = LOCAL_CRATE; . } . adapted . }) . .collect::>(); . . self.lazy(adapted.iter().map(|rc| &**rc)) . } . 8 ( 0.00%) fn encode_crate_root(&mut self) -> Lazy> { . let mut i = self.position(); . . // Encode the crate deps . let crate_deps = self.encode_crate_deps(); . let dylib_dependency_formats = self.encode_dylib_dependency_formats(); 5 ( 0.00%) let dep_bytes = self.position() - i; . . // Encode the lib features. . i = self.position(); . let lib_features = self.encode_lib_features(); 7 ( 0.00%) let lib_feature_bytes = self.position() - i; . . // Encode the language items. . i = self.position(); . let lang_items = self.encode_lang_items(); . let lang_items_missing = self.encode_lang_items_missing(); 5 ( 0.00%) let lang_item_bytes = self.position() - i; . . // Encode the diagnostic items. . i = self.position(); . let diagnostic_items = self.encode_diagnostic_items(); 5 ( 0.00%) let diagnostic_item_bytes = self.position() - i; . . // Encode the native libraries used . i = self.position(); . let native_libraries = self.encode_native_libraries(); 4 ( 0.00%) let native_lib_bytes = self.position() - i; . . let foreign_modules = self.encode_foreign_modules(); . . // Encode DefPathTable . i = self.position(); . self.encode_def_path_table(); 5 ( 0.00%) let def_path_table_bytes = self.position() - i; . . // Encode the def IDs of traits, for rustdoc and diagnostics. . i = self.position(); . let traits = self.encode_traits(); 5 ( 0.00%) let traits_bytes = self.position() - i; . . // Encode the def IDs of impls, for coherence checking. . i = self.position(); . let impls = self.encode_impls(); 5 ( 0.00%) let impls_bytes = self.position() - i; . 3 ( 0.00%) let tcx = self.tcx; . . // Encode MIR. . i = self.position(); . self.encode_mir(); 5 ( 0.00%) let mir_bytes = self.position() - i; . . // Encode the items. . i = self.position(); . self.encode_def_ids(); . self.encode_info_for_items(); 4 ( 0.00%) let item_bytes = self.position() - i; . . // Encode the allocation index . let interpret_alloc_index = { . let mut interpret_alloc_index = Vec::new(); . let mut n = 0; . trace!("beginning to encode alloc ids"); . loop { . let new_n = self.interpret_allocs.len(); . // if we have found new ids, serialize those, too 2 ( 0.00%) if n == new_n { . // otherwise, abort . break; . } . trace!("encoding {} further alloc ids", new_n - n); . for idx in n..new_n { . let id = self.interpret_allocs[idx]; . let pos = self.position() as u32; . interpret_alloc_index.push(pos); . interpret::specialized_encode_alloc_id(self, tcx, id).unwrap(); . } . n = new_n; . } 6 ( 0.00%) self.lazy(interpret_alloc_index) . }; . . // Encode the proc macro data. This affects 'tables', . // so we need to do this before we encode the tables . i = self.position(); . let proc_macro_data = self.encode_proc_macros(); 4 ( 0.00%) let proc_macro_data_bytes = self.position() - i; . . i = self.position(); 4 ( 0.00%) let tables = self.tables.encode(&mut self.opaque); 4 ( 0.00%) let tables_bytes = self.position() - i; . . // Encode exported symbols info. This is prefetched in `encode_metadata` so we encode . // this as late as possible to give the prefetching as much time as possible to complete. . i = self.position(); . let exported_symbols = tcx.exported_symbols(LOCAL_CRATE); . let exported_symbols = self.encode_exported_symbols(&exported_symbols); 4 ( 0.00%) let exported_symbols_bytes = self.position() - i; . . // Encode the hygiene data, . // IMPORTANT: this *must* be the last thing that we encode (other than `SourceMap`). The process . // of encoding other items (e.g. `optimized_mir`) may cause us to load . // data from the incremental cache. If this causes us to deserialize a `Span`, . // then we may load additional `SyntaxContext`s into the global `HygieneData`. . // Therefore, we need to encode the hygiene data last to ensure that we encode . // any `SyntaxContext`s that might be used. . i = self.position(); . let (syntax_contexts, expn_data, expn_hashes) = self.encode_hygiene(); 5 ( 0.00%) let hygiene_bytes = self.position() - i; . . i = self.position(); . let def_path_hash_map = self.encode_def_path_hash_map(); 1 ( 0.00%) let def_path_hash_map_bytes = self.position() - i; . . // Encode source_map. This needs to be done last, . // since encoding `Span`s tells us which `SourceFiles` we actually . // need to encode. . i = self.position(); . let source_map = self.encode_source_map(); 4 ( 0.00%) let source_map_bytes = self.position() - i; . 3 ( 0.00%) let attrs = tcx.hir().krate_attrs(); 7 ( 0.00%) let has_default_lib_allocator = tcx.sess.contains_name(&attrs, sym::default_lib_allocator); . 118 ( 0.00%) let root = self.lazy(CrateRoot { . name: tcx.crate_name(LOCAL_CRATE), 3 ( 0.00%) extra_filename: tcx.sess.opts.cg.extra_filename.clone(), 1 ( 0.00%) triple: tcx.sess.opts.target_triple.clone(), . hash: tcx.crate_hash(LOCAL_CRATE), . stable_crate_id: tcx.def_path_hash(LOCAL_CRATE.as_def_id()).stable_crate_id(), 3 ( 0.00%) panic_strategy: tcx.sess.panic_strategy(), 3 ( 0.00%) panic_in_drop_strategy: tcx.sess.opts.debugging_opts.panic_in_drop, 2 ( 0.00%) edition: tcx.sess.edition(), . has_global_allocator: tcx.has_global_allocator(LOCAL_CRATE), . has_panic_handler: tcx.has_panic_handler(LOCAL_CRATE), . has_default_lib_allocator, . proc_macro_data, 6 ( 0.00%) compiler_builtins: tcx.sess.contains_name(&attrs, sym::compiler_builtins), 6 ( 0.00%) needs_allocator: tcx.sess.contains_name(&attrs, sym::needs_allocator), 6 ( 0.00%) needs_panic_runtime: tcx.sess.contains_name(&attrs, sym::needs_panic_runtime), 6 ( 0.00%) no_builtins: tcx.sess.contains_name(&attrs, sym::no_builtins), 5 ( 0.00%) panic_runtime: tcx.sess.contains_name(&attrs, sym::panic_runtime), 5 ( 0.00%) profiler_runtime: tcx.sess.contains_name(&attrs, sym::profiler_runtime), 2 ( 0.00%) symbol_mangling_version: tcx.sess.opts.get_symbol_mangling_version(), . . crate_deps, . dylib_dependency_formats, . lib_features, . lang_items, . diagnostic_items, . lang_items_missing, . native_libraries, . foreign_modules, . source_map, . traits, . impls, . exported_symbols, . interpret_alloc_index, 2 ( 0.00%) tables, . syntax_contexts, . expn_data, . expn_hashes, . def_path_hash_map, . }); . 1 ( 0.00%) let total_bytes = self.position(); . 4 ( 0.00%) if tcx.sess.meta_stats() { . let mut zero_bytes = 0; . for e in self.opaque.data.iter() { . if *e == 0 { . zero_bytes += 1; . } . } . . eprintln!("metadata stats:"); -- line 756 ---------------------------------------- -- line 770 ---------------------------------------- . eprintln!(" item bytes: {}", item_bytes); . eprintln!(" table bytes: {}", tables_bytes); . eprintln!(" hygiene bytes: {}", hygiene_bytes); . eprintln!(" zero bytes: {}", zero_bytes); . eprintln!(" total bytes: {}", total_bytes); . } . . root 9 ( 0.00%) } . } . . fn should_encode_visibility(def_kind: DefKind) -> bool { . match def_kind { . DefKind::Mod . | DefKind::Struct . | DefKind::Union . | DefKind::Enum -- line 786 ---------------------------------------- -- line 853 ---------------------------------------- . /// Whether we should encode MIR. . /// . /// Computing, optimizing and encoding the MIR is a relatively expensive operation. . /// We want to avoid this work when not required. Therefore: . /// - we only compute `mir_for_ctfe` on items with const-eval semantics; . /// - we skip `optimized_mir` for check runs. . /// . /// Return a pair, resp. for CTFE and for LLVM. 207 ( 0.00%) fn should_encode_mir(tcx: TyCtxt<'_>, def_id: LocalDefId) -> (bool, bool) { 115 ( 0.00%) match tcx.def_kind(def_id) { . // Constructors . DefKind::Ctor(_, _) => { 12 ( 0.00%) let mir_opt_base = tcx.sess.opts.output_types.should_codegen() . || tcx.sess.opts.debugging_opts.always_encode_mir; . (true, mir_opt_base) . } . // Constants . DefKind::AnonConst . | DefKind::InlineConst . | DefKind::AssocConst . | DefKind::Static . | DefKind::Const => (true, false), . // Full-fledged functions . DefKind::AssocFn | DefKind::Fn => { . let generics = tcx.generics_of(def_id); 124 ( 0.00%) let needs_inline = (generics.requires_monomorphization(tcx) 40 ( 0.00%) || tcx.codegen_fn_attrs(def_id).requests_inline()) 15 ( 0.00%) && tcx.sess.opts.output_types.should_codegen(); . // The function has a `const` modifier or is annotated with `default_method_body_is_const`. 21 ( 0.00%) let is_const_fn = tcx.is_const_fn_raw(def_id.to_def_id()) 105 ( 0.00%) || tcx.has_attr(def_id.to_def_id(), sym::default_method_body_is_const); . let always_encode_mir = tcx.sess.opts.debugging_opts.always_encode_mir; 42 ( 0.00%) (is_const_fn, needs_inline || always_encode_mir) . } . // Closures can't be const fn. . DefKind::Closure => { . let generics = tcx.generics_of(def_id); . let needs_inline = (generics.requires_monomorphization(tcx) . || tcx.codegen_fn_attrs(def_id).requests_inline()) . && tcx.sess.opts.output_types.should_codegen(); . let always_encode_mir = tcx.sess.opts.debugging_opts.always_encode_mir; . (false, needs_inline || always_encode_mir) . } . // Generators require optimized MIR to compute layout. . DefKind::Generator => (false, true), . // The others don't have MIR. . _ => (false, false), . } 207 ( 0.00%) } . . fn should_encode_variances(def_kind: DefKind) -> bool { . match def_kind { . DefKind::Struct . | DefKind::Union . | DefKind::Enum . | DefKind::Variant . | DefKind::Fn -- line 909 ---------------------------------------- -- line 969 ---------------------------------------- . | DefKind::LifetimeParam . | DefKind::GlobalAsm . | DefKind::ExternCrate => false, . } . } . . impl<'a, 'tcx> EncodeContext<'a, 'tcx> { . fn encode_def_ids(&mut self) { 2 ( 0.00%) if self.is_proc_macro { . return; . } 1 ( 0.00%) let tcx = self.tcx; 3 ( 0.00%) let hir = tcx.hir(); 45 ( 0.00%) for local_id in hir.iter_local_def_id() { . let def_id = local_id.to_def_id(); . let def_kind = tcx.opt_def_kind(local_id); 636 ( 0.00%) let def_kind = if let Some(def_kind) = def_kind { def_kind } else { continue }; 1,504 ( 0.00%) record!(self.tables.def_kind[def_id] <- match def_kind { . // Replace Ctor by the enclosing object to avoid leaking details in children crates. . DefKind::Ctor(CtorOf::Struct, _) => DefKind::Struct, . DefKind::Ctor(CtorOf::Variant, _) => DefKind::Variant, . def_kind => def_kind, . }); 282 ( 0.00%) record!(self.tables.span[def_id] <- tcx.def_span(def_id)); 1,128 ( 0.00%) record!(self.tables.attributes[def_id] <- tcx.get_attrs(def_id)); 752 ( 0.00%) record!(self.tables.expn_that_defined[def_id] <- self.tcx.expn_that_defined(def_id)); . if should_encode_visibility(def_kind) { 552 ( 0.00%) record!(self.tables.visibility[def_id] <- self.tcx.visibility(def_id)); . } . if should_encode_stability(def_kind) { . self.encode_stability(def_id); . self.encode_const_stability(def_id); 510 ( 0.00%) self.encode_deprecation(def_id); . } . if should_encode_variances(def_kind) { 80 ( 0.00%) let v = self.tcx.variances_of(def_id); 280 ( 0.00%) record!(self.tables.variances[def_id] <- v); . } . if should_encode_generics(def_kind) { . let g = tcx.generics_of(def_id); 284 ( 0.00%) record!(self.tables.generics[def_id] <- g); 852 ( 0.00%) record!(self.tables.explicit_predicates[def_id] <- self.tcx.explicit_predicates_of(def_id)); 71 ( 0.00%) let inferred_outlives = self.tcx.inferred_outlives_of(def_id); 79 ( 0.00%) if !inferred_outlives.is_empty() { . record!(self.tables.inferred_outlives[def_id] <- inferred_outlives); . } . } 658 ( 0.00%) if let DefKind::Trait | DefKind::TraitAlias = def_kind { . record!(self.tables.super_predicates[def_id] <- self.tcx.super_predicates_of(def_id)); . } . } . let inherent_impls = tcx.crate_inherent_impls(()); . for (def_id, implementations) in inherent_impls.inherent_impls.iter() { 1 ( 0.00%) if implementations.is_empty() { . continue; . } 9 ( 0.00%) record!(self.tables.inherent_impls[def_id.to_def_id()] <- implementations.iter().map(|&def_id| { 1 ( 0.00%) assert!(def_id.is_local()); . def_id.index . })); . } . } . 490 ( 0.00%) fn encode_item_type(&mut self, def_id: DefId) { . debug!("EncodeContext::encode_item_type({:?})", def_id); 420 ( 0.00%) record!(self.tables.ty[def_id] <- self.tcx.type_of(def_id)); 560 ( 0.00%) } . . fn encode_enum_variant_info(&mut self, def: &ty::AdtDef, index: VariantIdx) { . let tcx = self.tcx; . let variant = &def.variants[index]; 28 ( 0.00%) let def_id = variant.def_id; . debug!("EncodeContext::encode_enum_variant_info({:?})", def_id); . 42 ( 0.00%) let data = VariantData { 7 ( 0.00%) ctor_kind: variant.ctor_kind, . discr: variant.discr, 7 ( 0.00%) ctor: variant.ctor_def_id.map(|did| did.index), 7 ( 0.00%) is_non_exhaustive: variant.is_field_list_non_exhaustive(), . }; . . record!(self.tables.kind[def_id] <- EntryKind::Variant(self.lazy(data))); . record!(self.tables.children[def_id] <- variant.fields.iter().map(|f| { 2 ( 0.00%) assert!(f.did.is_local()); . f.did.index . })); 7 ( 0.00%) self.encode_ident_span(def_id, variant.ident(tcx)); 7 ( 0.00%) self.encode_item_type(def_id); 7 ( 0.00%) if variant.ctor_kind == CtorKind::Fn { . // FIXME(eddyb) encode signature only in `encode_enum_variant_ctor`. 8 ( 0.00%) if let Some(ctor_def_id) = variant.ctor_def_id { . record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(ctor_def_id)); . } . } . } . . fn encode_enum_variant_ctor(&mut self, def: &ty::AdtDef, index: VariantIdx) { . let tcx = self.tcx; . let variant = &def.variants[index]; 35 ( 0.00%) let def_id = variant.ctor_def_id.unwrap(); . debug!("EncodeContext::encode_enum_variant_ctor({:?})", def_id); . . // FIXME(eddyb) encode only the `CtorKind` for constructors. . let data = VariantData { 7 ( 0.00%) ctor_kind: variant.ctor_kind, . discr: variant.discr, . ctor: Some(def_id.index), 7 ( 0.00%) is_non_exhaustive: variant.is_field_list_non_exhaustive(), . }; . 28 ( 0.00%) record!(self.tables.kind[def_id] <- EntryKind::Variant(self.lazy(data))); 21 ( 0.00%) self.encode_item_type(def_id); 7 ( 0.00%) if variant.ctor_kind == CtorKind::Fn { . record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id)); . } . } . 20 ( 0.00%) fn encode_info_for_mod(&mut self, local_def_id: LocalDefId, md: &hir::Mod<'_>) { 4 ( 0.00%) let tcx = self.tcx; . let def_id = local_def_id.to_def_id(); . debug!("EncodeContext::encode_info_for_mod({:?})", def_id); . . // If we are encoding a proc-macro crates, `encode_info_for_mod` will . // only ever get called for the crate root. We still want to encode . // the crate root for consistency with other crates (some of the resolver . // code uses it). However, we skip encoding anything relating to child . // items - we encode information about proc-macros later on. 6 ( 0.00%) let reexports = if !self.is_proc_macro { 4 ( 0.00%) match tcx.module_reexports(local_def_id) { . Some(exports) => self.lazy(exports), . _ => Lazy::empty(), . } . } else { . Lazy::empty() . }; . 8 ( 0.00%) record!(self.tables.kind[def_id] <- EntryKind::Mod(reexports)); 4 ( 0.00%) if self.is_proc_macro { . // Encode this here because we don't do it in encode_def_ids. . record!(self.tables.expn_that_defined[def_id] <- tcx.expn_that_defined(local_def_id)); . } else { . let direct_children = md.item_ids.iter().map(|item_id| item_id.def_id.local_def_index); . // Foreign items are planted into their parent modules from name resolution point of view. 4 ( 0.00%) let tcx = self.tcx; . let foreign_item_children = md . .item_ids . .iter() 260 ( 0.00%) .filter_map(|item_id| match tcx.hir().item(*item_id).kind { . hir::ItemKind::ForeignMod { items, .. } => { . Some(items.iter().map(|fi_ref| fi_ref.id.def_id.local_def_index)) . } . _ => None, . }) . .flatten(); . 14 ( 0.00%) record!(self.tables.children[def_id] <- direct_children.chain(foreign_item_children)); . } 16 ( 0.00%) } . . fn encode_field( . &mut self, . adt_def: &ty::AdtDef, . variant_index: VariantIdx, . field_index: usize, . ) { . let variant = &adt_def.variants[variant_index]; . let field = &variant.fields[field_index]; . . let def_id = field.did; . debug!("EncodeContext::encode_field({:?})", def_id); . . record!(self.tables.kind[def_id] <- EntryKind::Field); 10 ( 0.00%) self.encode_ident_span(def_id, field.ident(self.tcx)); 15 ( 0.00%) self.encode_item_type(def_id); . } . . fn encode_struct_ctor(&mut self, adt_def: &ty::AdtDef, def_id: DefId) { . debug!("EncodeContext::encode_struct_ctor({:?})", def_id); . let tcx = self.tcx; . let variant = adt_def.non_enum_variant(); . . let data = VariantData { -- line 1150 ---------------------------------------- -- line 1234 ---------------------------------------- . } . if trait_item.kind == ty::AssocKind::Fn { . record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id)); . } . } . . fn encode_info_for_impl_item(&mut self, def_id: DefId) { . debug!("EncodeContext::encode_info_for_impl_item({:?})", def_id); 42 ( 0.00%) let tcx = self.tcx; . 126 ( 0.00%) let ast_item = self.tcx.hir().expect_impl_item(def_id.expect_local()); 21 ( 0.00%) let impl_item = self.tcx.associated_item(def_id); . 84 ( 0.00%) let container = match impl_item.defaultness { . hir::Defaultness::Default { has_value: true } => AssocContainer::ImplDefault, . hir::Defaultness::Final => AssocContainer::ImplFinal, . hir::Defaultness::Default { has_value: false } => { . span_bug!(ast_item.span, "impl items always have values (currently)") . } . }; . 126 ( 0.00%) match impl_item.kind { . ty::AssocKind::Const => { . if let hir::ImplItemKind::Const(_, body_id) = ast_item.kind { . let qualifs = self.tcx.at(ast_item.span).mir_const_qualif(def_id); . . record!(self.tables.kind[def_id] <- EntryKind::AssocConst( . container, . qualifs, . self.encode_rendered_const_for_body(body_id)) . ); . } else { . bug!() . } . } . ty::AssocKind::Fn => { 42 ( 0.00%) let fn_data = if let hir::ImplItemKind::Fn(ref sig, body) = ast_item.kind { . FnData { . asyncness: sig.header.asyncness, . // Can be inside `impl const Trait`, so using sig.header.constness is not reliable 21 ( 0.00%) constness: if self.tcx.is_const_fn_raw(def_id) { . hir::Constness::Const . } else { . hir::Constness::NotConst . }, . param_names: self.encode_fn_param_names_for_body(body), . } . } else { . bug!() -- line 1282 ---------------------------------------- -- line 1286 ---------------------------------------- . container, . has_self: impl_item.fn_has_self_parameter, . }))); . } . ty::AssocKind::Type => { . record!(self.tables.kind[def_id] <- EntryKind::AssocType(container)); . } . } 63 ( 0.00%) self.encode_ident_span(def_id, impl_item.ident(self.tcx)); 105 ( 0.00%) self.encode_item_type(def_id); 84 ( 0.00%) if let Some(trait_item_def_id) = impl_item.trait_item_def_id { . record!(self.tables.trait_item_def_id[def_id] <- trait_item_def_id); . } 21 ( 0.00%) if impl_item.kind == ty::AssocKind::Fn { . record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id)); . } . } . . fn encode_fn_param_names_for_body(&mut self, body_id: hir::BodyId) -> Lazy<[Ident]> { 147 ( 0.00%) self.lazy(self.tcx.hir().body_param_names(body_id)) . } . . fn encode_fn_param_names(&mut self, param_names: &[Ident]) -> Lazy<[Ident]> { . self.lazy(param_names.iter()) . } . . fn encode_mir(&mut self) { 3 ( 0.00%) if self.is_proc_macro { . return; . } . . let keys_and_jobs = self . .tcx . .mir_keys(()) . .iter() . .filter_map(|&def_id| { 115 ( 0.00%) let (encode_const, encode_opt) = should_encode_mir(self.tcx, def_id); 75 ( 0.00%) if encode_const || encode_opt { 4 ( 0.00%) Some((def_id, encode_const, encode_opt)) . } else { . None . } 46 ( 0.00%) }) . .collect::>(); 15 ( 0.00%) for (def_id, encode_const, encode_opt) in keys_and_jobs.into_iter() { . debug_assert!(encode_const || encode_opt); . . debug!("EntryBuilder::encode_mir({:?})", def_id); 2 ( 0.00%) if encode_opt { . record!(self.tables.mir[def_id.to_def_id()] <- self.tcx.optimized_mir(def_id)); . } 2 ( 0.00%) if encode_const { 8 ( 0.00%) record!(self.tables.mir_for_ctfe[def_id.to_def_id()] <- self.tcx.mir_for_ctfe(def_id)); . . // FIXME(generic_const_exprs): this feels wrong to have in `encode_mir` 2 ( 0.00%) let abstract_const = self.tcx.thir_abstract_const(def_id); 8 ( 0.00%) if let Ok(Some(abstract_const)) = abstract_const { . record!(self.tables.thir_abstract_consts[def_id.to_def_id()] <- abstract_const); . } . } 8 ( 0.00%) record!(self.tables.promoted_mir[def_id.to_def_id()] <- self.tcx.promoted_mir(def_id)); . . let instance = . ty::InstanceDef::Item(ty::WithOptConstParam::unknown(def_id.to_def_id())); 2 ( 0.00%) let unused = self.tcx.unused_generic_params(instance); 2 ( 0.00%) if !unused.is_empty() { . record!(self.tables.unused_generic_params[def_id.to_def_id()] <- unused); . } . } . } . . fn encode_stability(&mut self, def_id: DefId) { . debug!("EncodeContext::encode_stability({:?})", def_id); . . // The query lookup can take a measurable amount of time in crates with many items. Check if . // the stability attributes are even enabled before using their queries. 680 ( 0.00%) if self.feat.staged_api || self.tcx.sess.opts.debugging_opts.force_unstable_if_unmarked { . if let Some(stab) = self.tcx.lookup_stability(def_id) { . record!(self.tables.stability[def_id] <- stab) . } . } . } . . fn encode_const_stability(&mut self, def_id: DefId) { . debug!("EncodeContext::encode_const_stability({:?})", def_id); . . // The query lookup can take a measurable amount of time in crates with many items. Check if . // the stability attributes are even enabled before using their queries. 595 ( 0.00%) if self.feat.staged_api || self.tcx.sess.opts.debugging_opts.force_unstable_if_unmarked { . if let Some(stab) = self.tcx.lookup_const_stability(def_id) { . record!(self.tables.const_stability[def_id] <- stab) . } . } . } . 510 ( 0.00%) fn encode_deprecation(&mut self, def_id: DefId) { . debug!("EncodeContext::encode_deprecation({:?})", def_id); 425 ( 0.00%) if let Some(depr) = self.tcx.lookup_deprecation(def_id) { . record!(self.tables.deprecation[def_id] <- depr); . } 425 ( 0.00%) } . . fn encode_rendered_const_for_body(&mut self, body_id: hir::BodyId) -> Lazy { . let hir = self.tcx.hir(); . let body = hir.body(body_id); . let rendered = rustc_hir_pretty::to_string(&(&hir as &dyn intravisit::Map<'_>), |s| { . s.print_expr(&body.value) . }); . let rendered_const = &RenderedConst(rendered); . self.lazy(rendered_const) . } . 387 ( 0.00%) fn encode_info_for_item(&mut self, def_id: DefId, item: &'tcx hir::Item<'tcx>) { . let tcx = self.tcx; . . debug!("EncodeContext::encode_info_for_item({:?})", def_id); . . self.encode_ident_span(def_id, item.ident); . 258 ( 0.00%) let entry_kind = match item.kind { . hir::ItemKind::Static(_, hir::Mutability::Mut, _) => EntryKind::MutStatic, . hir::ItemKind::Static(_, hir::Mutability::Not, _) => EntryKind::ImmStatic, . hir::ItemKind::Const(_, body_id) => { . let qualifs = self.tcx.at(item.span).mir_const_qualif(def_id); . EntryKind::Const(qualifs, self.encode_rendered_const_for_body(body_id)) . } . hir::ItemKind::Fn(ref sig, .., body) => { . let data = FnData { . asyncness: sig.header.asyncness, . constness: sig.header.constness, . param_names: self.encode_fn_param_names_for_body(body), . }; . . EntryKind::Fn(self.lazy(data)) . } 12 ( 0.00%) hir::ItemKind::Macro(ref macro_def) => { . EntryKind::MacroDef(self.lazy(macro_def.clone())) . } . hir::ItemKind::Mod(ref m) => { 12 ( 0.00%) return self.encode_info_for_mod(item.def_id, m); . } . hir::ItemKind::ForeignMod { .. } => EntryKind::ForeignMod, . hir::ItemKind::GlobalAsm(..) => EntryKind::GlobalAsm, . hir::ItemKind::TyAlias(..) => EntryKind::Type, . hir::ItemKind::OpaqueTy(..) => { . self.encode_explicit_item_bounds(def_id); . EntryKind::OpaqueTy . } 18 ( 0.00%) hir::ItemKind::Enum(..) => EntryKind::Enum(self.tcx.adt_def(def_id).repr), . hir::ItemKind::Struct(ref struct_def, _) => { 4 ( 0.00%) let adt_def = self.tcx.adt_def(def_id); 6 ( 0.00%) let variant = adt_def.non_enum_variant(); . . // Encode def_ids for each field and method . // for methods, write all the stuff get_trait_method . // needs to know 8 ( 0.00%) let ctor = struct_def . .ctor_hir_id() . .map(|ctor_hir_id| self.tcx.hir().local_def_id(ctor_hir_id).local_def_index); . . EntryKind::Struct( . self.lazy(VariantData { 2 ( 0.00%) ctor_kind: variant.ctor_kind, 8 ( 0.00%) discr: variant.discr, . ctor, . is_non_exhaustive: variant.is_field_list_non_exhaustive(), . }), 6 ( 0.00%) adt_def.repr, . ) . } . hir::ItemKind::Union(..) => { . let adt_def = self.tcx.adt_def(def_id); . let variant = adt_def.non_enum_variant(); . . EntryKind::Union( . self.lazy(VariantData { -- line 1461 ---------------------------------------- -- line 1462 ---------------------------------------- . ctor_kind: variant.ctor_kind, . discr: variant.discr, . ctor: None, . is_non_exhaustive: variant.is_field_list_non_exhaustive(), . }), . adt_def.repr, . ) . } 100 ( 0.00%) hir::ItemKind::Impl(hir::Impl { defaultness, constness, .. }) => { 98 ( 0.00%) let trait_ref = self.tcx.impl_trait_ref(def_id); 50 ( 0.00%) let polarity = self.tcx.impl_polarity(def_id); 50 ( 0.00%) let parent = if let Some(trait_ref) = trait_ref { 24 ( 0.00%) let trait_def = self.tcx.trait_def(trait_ref.def_id); 144 ( 0.00%) trait_def.ancestors(self.tcx, def_id).ok().and_then(|mut an| { 144 ( 0.00%) an.nth(1).and_then(|node| match node { . specialization_graph::Node::Impl(parent) => Some(parent), . _ => None, . }) . }) . } else { . None . }; . . // if this is an impl of `CoerceUnsized`, create its . // "unsized info", else just store None . let coerce_unsized_info = trait_ref.and_then(|t| { 144 ( 0.00%) if Some(t.def_id) == self.tcx.lang_items().coerce_unsized_trait() { . Some(self.tcx.at(item.span).coerce_unsized_info(def_id)) . } else { . None . } . }); . . let data = ImplData { . polarity, -- line 1496 ---------------------------------------- -- line 1518 ---------------------------------------- . } . hir::ItemKind::TraitAlias(..) => EntryKind::TraitAlias, . hir::ItemKind::ExternCrate(_) | hir::ItemKind::Use(..) => { . bug!("cannot encode info for item {:?}", item) . } . }; . record!(self.tables.kind[def_id] <- entry_kind); . // FIXME(eddyb) there should be a nicer way to do this. 210 ( 0.00%) match item.kind { . hir::ItemKind::Enum(..) => record!(self.tables.children[def_id] <- 6 ( 0.00%) self.tcx.adt_def(def_id).variants.iter().map(|v| { 7 ( 0.00%) assert!(v.def_id.is_local()); . v.def_id.index . }) . ), . hir::ItemKind::Struct(..) | hir::ItemKind::Union(..) => { . record!(self.tables.children[def_id] <- 6 ( 0.00%) self.tcx.adt_def(def_id).non_enum_variant().fields.iter().map(|f| { 3 ( 0.00%) assert!(f.did.is_local()); . f.did.index . }) . ) . } . hir::ItemKind::Impl { .. } | hir::ItemKind::Trait(..) => { 50 ( 0.00%) let associated_item_def_ids = self.tcx.associated_item_def_ids(def_id); . record!(self.tables.children[def_id] <- . associated_item_def_ids.iter().map(|&def_id| { 21 ( 0.00%) assert!(def_id.is_local()); . def_id.index . }) . ); . } . _ => {} . } 114 ( 0.00%) match item.kind { . hir::ItemKind::Static(..) . | hir::ItemKind::Const(..) . | hir::ItemKind::Fn(..) . | hir::ItemKind::TyAlias(..) . | hir::ItemKind::OpaqueTy(..) . | hir::ItemKind::Enum(..) . | hir::ItemKind::Struct(..) . | hir::ItemKind::Union(..) 120 ( 0.00%) | hir::ItemKind::Impl { .. } => self.encode_item_type(def_id), . _ => {} . } 114 ( 0.00%) if let hir::ItemKind::Fn(..) = item.kind { . record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id)); . } 84 ( 0.00%) if let hir::ItemKind::Impl { .. } = item.kind { 125 ( 0.00%) if let Some(trait_ref) = self.tcx.impl_trait_ref(def_id) { 120 ( 0.00%) record!(self.tables.impl_trait_ref[def_id] <- trait_ref); . } . } 336 ( 0.00%) } . . fn encode_info_for_generic_param(&mut self, def_id: DefId, kind: EntryKind, encode_type: bool) { 3 ( 0.00%) record!(self.tables.kind[def_id] <- kind); 1 ( 0.00%) if encode_type { . self.encode_item_type(def_id); . } . } . . fn encode_info_for_closure(&mut self, hir_id: hir::HirId) { . let def_id = self.tcx.hir().local_def_id(hir_id); . debug!("EncodeContext::encode_info_for_closure({:?})", def_id); . -- line 1584 ---------------------------------------- -- line 1611 ---------------------------------------- . let const_data = self.encode_rendered_const_for_body(body_id); . let qualifs = self.tcx.mir_const_qualif(def_id); . . record!(self.tables.kind[def_id.to_def_id()] <- EntryKind::AnonConst(qualifs, const_data)); . self.encode_item_type(def_id.to_def_id()); . } . . fn encode_native_libraries(&mut self) -> Lazy<[NativeLib]> { 2 ( 0.00%) empty_proc_macro!(self); 2 ( 0.00%) let used_libraries = self.tcx.native_libraries(LOCAL_CRATE); . self.lazy(used_libraries.iter()) . } . . fn encode_foreign_modules(&mut self) -> Lazy<[ForeignModule]> { 5 ( 0.00%) empty_proc_macro!(self); 2 ( 0.00%) let foreign_modules = self.tcx.foreign_modules(LOCAL_CRATE); . self.lazy(foreign_modules.iter().map(|(_, m)| m).cloned()) . } . . fn encode_hygiene(&mut self) -> (SyntaxContextTable, ExpnDataTable, ExpnHashTable) { . let mut syntax_contexts: TableBuilder<_, _> = Default::default(); . let mut expn_data_table: TableBuilder<_, _> = Default::default(); . let mut expn_hash_table: TableBuilder<_, _> = Default::default(); . 2 ( 0.00%) let _: Result<(), !> = self.hygiene_ctxt.encode( 8 ( 0.00%) &mut (&mut *self, &mut syntax_contexts, &mut expn_data_table, &mut expn_hash_table), . |(this, syntax_contexts, _, _), index, ctxt_data| { . syntax_contexts.set(index, this.lazy(ctxt_data)); . Ok(()) . }, . |(this, _, expn_data_table, expn_hash_table), index, expn_data, hash| { . if let Some(index) = index.as_local() { 38 ( 0.00%) expn_data_table.set(index.as_raw(), this.lazy(expn_data)); 38 ( 0.00%) expn_hash_table.set(index.as_raw(), this.lazy(hash)); . } . Ok(()) . }, . ); . . ( . syntax_contexts.encode(&mut self.opaque), . expn_data_table.encode(&mut self.opaque), . expn_hash_table.encode(&mut self.opaque), . ) . } . . fn encode_proc_macros(&mut self) -> Option { 6 ( 0.00%) let is_proc_macro = self.tcx.sess.crate_types().contains(&CrateType::ProcMacro); . if is_proc_macro { . let tcx = self.tcx; . let hir = tcx.hir(); . . let proc_macro_decls_static = tcx.proc_macro_decls_static(()).unwrap().local_def_index; . let stability = tcx.lookup_stability(DefId::local(CRATE_DEF_INDEX)).copied(); . let macros = . self.lazy(tcx.resolutions(()).proc_macros.iter().map(|p| p.local_def_index)); -- line 1666 ---------------------------------------- -- line 1725 ---------------------------------------- . . Some(ProcMacroData { proc_macro_decls_static, stability, macros }) . } else { . None . } . } . . fn encode_crate_deps(&mut self) -> Lazy<[CrateDep]> { 7 ( 0.00%) empty_proc_macro!(self); . 1 ( 0.00%) let deps = self . .tcx . .crates(()) . .iter() . .map(|&cnum| { . let dep = CrateDep { 23 ( 0.00%) name: self.tcx.crate_name(cnum), 23 ( 0.00%) hash: self.tcx.crate_hash(cnum), 23 ( 0.00%) host_hash: self.tcx.crate_host_hash(cnum), 23 ( 0.00%) kind: self.tcx.dep_kind(cnum), 23 ( 0.00%) extra_filename: self.tcx.extra_filename(cnum), . }; 115 ( 0.00%) (cnum, dep) . }) . .collect::>(); . . { . // Sanity-check the crate numbers . let mut expected_cnum = 1; 46 ( 0.00%) for &(n, _) in &deps { 58 ( 0.00%) assert_eq!(n, CrateNum::new(expected_cnum)); . expected_cnum += 1; . } . } . . // We're just going to write a list of crate 'name-hash-version's, with . // the assumption that they are numbered 1 to n. . // FIXME (#2166): This is not nearly enough to support correct versioning . // but is enough to get transitive crate dependencies working. . self.lazy(deps.iter().map(|&(_, ref dep)| dep)) . } . . fn encode_lib_features(&mut self) -> Lazy<[(Symbol, Option)]> { 2 ( 0.00%) empty_proc_macro!(self); 1 ( 0.00%) let tcx = self.tcx; . let lib_features = tcx.lib_features(()); 2 ( 0.00%) self.lazy(lib_features.to_vec()) . } . . fn encode_diagnostic_items(&mut self) -> Lazy<[(Symbol, DefIndex)]> { 3 ( 0.00%) empty_proc_macro!(self); 1 ( 0.00%) let tcx = self.tcx; . let diagnostic_items = &tcx.diagnostic_items(LOCAL_CRATE).name_to_id; . self.lazy(diagnostic_items.iter().map(|(&name, def_id)| (name, def_id.index))) . } . . fn encode_lang_items(&mut self) -> Lazy<[(DefIndex, usize)]> { 4 ( 0.00%) empty_proc_macro!(self); 1 ( 0.00%) let tcx = self.tcx; 1 ( 0.00%) let lang_items = tcx.lang_items(); 2 ( 0.00%) let lang_items = lang_items.items().iter(); . self.lazy(lang_items.enumerate().filter_map(|(i, &opt_def_id)| { 568 ( 0.00%) if let Some(def_id) = opt_def_id { . if def_id.is_local() { . return Some((def_id.index, i)); . } . } . None . })) . } . . fn encode_lang_items_missing(&mut self) -> Lazy<[lang_items::LangItem]> { 2 ( 0.00%) empty_proc_macro!(self); 1 ( 0.00%) let tcx = self.tcx; 1 ( 0.00%) self.lazy(&tcx.lang_items().missing) . } . . fn encode_traits(&mut self) -> Lazy<[DefIndex]> { 3 ( 0.00%) empty_proc_macro!(self); 1 ( 0.00%) self.lazy(self.tcx.traits_in_crate(LOCAL_CRATE).iter().map(|def_id| def_id.index)) . } . . /// Encodes an index, mapping each trait to its (local) implementations. . fn encode_impls(&mut self) -> Lazy<[TraitImpls]> { . debug!("EncodeContext::encode_traits_and_impls()"); 2 ( 0.00%) empty_proc_macro!(self); 2 ( 0.00%) let tcx = self.tcx; 5 ( 0.00%) let mut visitor = ImplsVisitor { tcx, impls: FxHashMap::default() }; 4 ( 0.00%) tcx.hir().visit_all_item_likes(&mut visitor); . . let mut all_impls: Vec<_> = visitor.impls.into_iter().collect(); . . // Bring everything into deterministic order for hashing 11 ( 0.00%) all_impls.sort_by_cached_key(|&(trait_def_id, _)| tcx.def_path_hash(trait_def_id)); . . let all_impls: Vec<_> = all_impls . .into_iter() 165 ( 0.00%) .map(|(trait_def_id, mut impls)| { . // Bring everything into deterministic order for hashing 6 ( 0.00%) impls.sort_by_cached_key(|&(index, _)| { 19 ( 0.00%) tcx.hir().def_path_hash(LocalDefId { local_def_index: index }) . }); . 44 ( 0.00%) TraitImpls { . trait_id: (trait_def_id.krate.as_u32(), trait_def_id.index), 33 ( 0.00%) impls: self.lazy(&impls), . } 88 ( 0.00%) }) . .collect(); . . self.lazy(&all_impls) . } . . // Encodes all symbols exported from this crate into the metadata. . // . // This pass is seeded off the reachability list calculated in the . // middle::reachable module but filters out items that either don't have a . // symbol associated with them (they weren't translated) or if they're an FFI . // definition (as that's not defined in this crate). . fn encode_exported_symbols( . &mut self, . exported_symbols: &[(ExportedSymbol<'tcx>, SymbolExportLevel)], . ) -> Lazy<[(ExportedSymbol<'tcx>, SymbolExportLevel)]> { 2 ( 0.00%) empty_proc_macro!(self); . // The metadata symbol name is special. It should not show up in . // downstream crates. 9 ( 0.00%) let metadata_symbol_name = SymbolName::new(self.tcx, &metadata_symbol_name(self.tcx)); . . self.lazy( . exported_symbols . .iter() . .filter(|&&(ref exported_symbol, _)| match *exported_symbol { . ExportedSymbol::NoDefId(symbol_name) => symbol_name != metadata_symbol_name, . _ => true, . }) . .cloned(), . ) . } . . fn encode_dylib_dependency_formats(&mut self) -> Lazy<[Option]> { 2 ( 0.00%) empty_proc_macro!(self); 2 ( 0.00%) let formats = self.tcx.dependency_formats(()); 4 ( 0.00%) for (ty, arr) in formats.iter() { 2 ( 0.00%) if *ty != CrateType::Dylib { . continue; . } . return self.lazy(arr.iter().map(|slot| match *slot { . Linkage::NotLinked | Linkage::IncludedFromDylib => None, . . Linkage::Dynamic => Some(LinkagePreference::RequireDynamic), . Linkage::Static => Some(LinkagePreference::RequireStatic), . })); -- line 1876 ---------------------------------------- -- line 1914 ---------------------------------------- . } . } . . // FIXME(eddyb) make metadata encoding walk over all definitions, instead of HIR. . impl<'a, 'tcx> Visitor<'tcx> for EncodeContext<'a, 'tcx> { . type NestedFilter = nested_filter::OnlyBodies; . . fn nested_visit_map(&mut self) -> Self::Map { 21 ( 0.00%) self.tcx.hir() . } 3,384 ( 0.00%) fn visit_expr(&mut self, ex: &'tcx hir::Expr<'tcx>) { 376 ( 0.00%) intravisit::walk_expr(self, ex); . self.encode_info_for_expr(ex); 3,008 ( 0.00%) } . fn visit_anon_const(&mut self, c: &'tcx AnonConst) { . intravisit::walk_anon_const(self, c); . self.encode_info_for_anon_const(c.hir_id); . } . fn visit_item(&mut self, item: &'tcx hir::Item<'tcx>) { 156 ( 0.00%) intravisit::walk_item(self, item); 104 ( 0.00%) match item.kind { . hir::ItemKind::ExternCrate(_) | hir::ItemKind::Use(..) => {} // ignore these 172 ( 0.00%) _ => self.encode_info_for_item(item.def_id.to_def_id(), item), . } 208 ( 0.00%) self.encode_addl_info_for_item(item); . } . fn visit_foreign_item(&mut self, ni: &'tcx hir::ForeignItem<'tcx>) { . intravisit::walk_foreign_item(self, ni); . self.encode_info_for_foreign_item(ni.def_id.to_def_id(), ni); . } 459 ( 0.00%) fn visit_generics(&mut self, generics: &'tcx hir::Generics<'tcx>) { . intravisit::walk_generics(self, generics); . self.encode_info_for_generics(generics); 408 ( 0.00%) } . } . . impl<'a, 'tcx> EncodeContext<'a, 'tcx> { 35 ( 0.00%) fn encode_fields(&mut self, adt_def: &ty::AdtDef) { . for (variant_index, variant) in adt_def.variants.iter_enumerated() { . for (field_index, _field) in variant.fields.iter().enumerate() { . self.encode_field(adt_def, variant_index, field_index); . } . } 40 ( 0.00%) } . . fn encode_info_for_generics(&mut self, generics: &hir::Generics<'tcx>) { . for param in generics.params { 6 ( 0.00%) let def_id = self.tcx.hir().local_def_id(param.hir_id); 9 ( 0.00%) match param.kind { . GenericParamKind::Lifetime { .. } => continue, . GenericParamKind::Type { default, .. } => { . self.encode_info_for_generic_param( . def_id.to_def_id(), . EntryKind::TypeParam, . default.is_some(), . ); . } -- line 1970 ---------------------------------------- -- line 1975 ---------------------------------------- . record!(self.tables.const_defaults[def_id] <- self.tcx.const_param_default(def_id)) . } . } . } . } . } . . fn encode_info_for_expr(&mut self, expr: &hir::Expr<'_>) { 752 ( 0.00%) if let hir::ExprKind::Closure(..) = expr.kind { . self.encode_info_for_closure(expr.hir_id); . } . } . . fn encode_ident_span(&mut self, def_id: DefId, ident: Ident) { . record!(self.tables.ident_span[def_id] <- ident.span); . } . . /// In some cases, along with the item itself, we also . /// encode some sub-items. Usually we want some info from the item . /// so it's easier to do that here then to wait until we would encounter . /// normally in the visitor walk. 468 ( 0.00%) fn encode_addl_info_for_item(&mut self, item: &hir::Item<'_>) { 260 ( 0.00%) match item.kind { . hir::ItemKind::Static(..) . | hir::ItemKind::Const(..) . | hir::ItemKind::Fn(..) . | hir::ItemKind::Macro(..) . | hir::ItemKind::Mod(..) . | hir::ItemKind::ForeignMod { .. } . | hir::ItemKind::GlobalAsm(..) . | hir::ItemKind::ExternCrate(..) . | hir::ItemKind::Use(..) . | hir::ItemKind::TyAlias(..) . | hir::ItemKind::OpaqueTy(..) . | hir::ItemKind::TraitAlias(..) => { . // no sub-item recording needed in these cases . } . hir::ItemKind::Enum(..) => { 3 ( 0.00%) let def = self.tcx.adt_def(item.def_id.to_def_id()); 6 ( 0.00%) self.encode_fields(def); . . for (i, variant) in def.variants.iter_enumerated() { . self.encode_enum_variant_info(def, i); . 21 ( 0.00%) if let Some(_ctor_def_id) = variant.ctor_def_id { . self.encode_enum_variant_ctor(def, i); . } . } . } . hir::ItemKind::Struct(ref struct_def, _) => { 2 ( 0.00%) let def = self.tcx.adt_def(item.def_id.to_def_id()); 4 ( 0.00%) self.encode_fields(def); . . // If the struct has a constructor, encode it. 8 ( 0.00%) if let Some(ctor_hir_id) = struct_def.ctor_hir_id() { . let ctor_def_id = self.tcx.hir().local_def_id(ctor_hir_id); . self.encode_struct_ctor(def, ctor_def_id.to_def_id()); . } . } . hir::ItemKind::Union(..) => { . let def = self.tcx.adt_def(item.def_id.to_def_id()); . self.encode_fields(def); . } . hir::ItemKind::Impl { .. } => { 84 ( 0.00%) for &trait_item_def_id in 25 ( 0.00%) self.tcx.associated_item_def_ids(item.def_id.to_def_id()).iter() . { . self.encode_info_for_impl_item(trait_item_def_id); . } . } . hir::ItemKind::Trait(..) => { . for &item_def_id in self.tcx.associated_item_def_ids(item.def_id.to_def_id()).iter() . { . self.encode_info_for_trait_item(item_def_id); . } . } . } 416 ( 0.00%) } . } . . struct ImplsVisitor<'tcx> { . tcx: TyCtxt<'tcx>, . impls: FxHashMap)>>, . } . . impl<'tcx, 'v> ItemLikeVisitor<'v> for ImplsVisitor<'tcx> { 364 ( 0.00%) fn visit_item(&mut self, item: &hir::Item<'_>) { 104 ( 0.00%) match item.kind { . hir::ItemKind::Impl(..) => { 98 ( 0.00%) if let Some(trait_ref) = self.tcx.impl_trait_ref(item.def_id.to_def_id()) { 144 ( 0.00%) let simplified_self_ty = fast_reject::simplify_type( . self.tcx, . trait_ref.self_ty(), . SimplifyParams::No, . StripReferences::No, . ); . . self.impls . .entry(trait_ref.def_id) . .or_default() . .push((item.def_id.local_def_index, simplified_self_ty)); . } . } . _ => {} . } 416 ( 0.00%) } . . fn visit_trait_item(&mut self, _trait_item: &'v hir::TraitItem<'v>) {} . . fn visit_impl_item(&mut self, _impl_item: &'v hir::ImplItem<'v>) { . // handled in `visit_item` above . } . . fn visit_foreign_item(&mut self, _foreign_item: &'v hir::ForeignItem<'v>) {} -- line 2088 ---------------------------------------- -- line 2146 ---------------------------------------- . } . . #[inline] . pub fn raw_data(&self) -> &[u8] { . &self.raw_data . } . } . 10 ( 0.00%) pub fn encode_metadata(tcx: TyCtxt<'_>) -> EncodedMetadata { 5 ( 0.00%) let _prof_timer = tcx.prof.verbose_generic_activity("generate_crate_metadata"); . . // Since encoding metadata is not in a query, and nothing is cached, . // there's no need to do dep-graph tracking for any of it. . tcx.dep_graph.assert_ignored(); . 7 ( 0.00%) join( 3 ( 0.00%) || encode_metadata_impl(tcx), . || { 5 ( 0.00%) if tcx.sess.threads() == 1 { . return; . } . // Prefetch some queries used by metadata encoding. . // This is not necessary for correctness, but is only done for performance reasons. . // It can be removed if it turns out to cause trouble or be detrimental to performance. . join(|| prefetch_mir(tcx), || tcx.exported_symbols(LOCAL_CRATE)); . }, . ) . .0 9 ( 0.00%) } . 9 ( 0.00%) fn encode_metadata_impl(tcx: TyCtxt<'_>) -> EncodedMetadata { 1 ( 0.00%) let mut encoder = opaque::Encoder::new(vec![]); . encoder.emit_raw_bytes(METADATA_HEADER).unwrap(); . . // Will be filled with the root position after encoding everything. . encoder.emit_raw_bytes(&[0, 0, 0, 0]).unwrap(); . 2 ( 0.00%) let source_map_files = tcx.sess.source_map().files(); 3 ( 0.00%) let source_file_cache = (source_map_files[0].clone(), 0); 2 ( 0.00%) let required_source_files = Some(GrowableBitSet::with_capacity(source_map_files.len())); . drop(source_map_files); . . let hygiene_ctxt = HygieneEncodeContext::default(); . 35 ( 0.00%) let mut ecx = EncodeContext { 4 ( 0.00%) opaque: encoder, . tcx, 2 ( 0.00%) feat: tcx.features(), . tables: Default::default(), . lazy_state: LazyState::NoNode, . type_shorthands: Default::default(), . predicate_shorthands: Default::default(), 4 ( 0.00%) source_file_cache, . interpret_allocs: Default::default(), 4 ( 0.00%) required_source_files, 2 ( 0.00%) is_proc_macro: tcx.sess.crate_types().contains(&CrateType::ProcMacro), . hygiene_ctxt: &hygiene_ctxt, . }; . . // Encode the rustc version string in a predictable location. . rustc_version().encode(&mut ecx).unwrap(); . . // Encode all the entries and extra information in the crate, . // culminating in the `CrateRoot` which points to all of it. 1 ( 0.00%) let root = ecx.encode_crate_root(); . 7 ( 0.00%) let mut result = ecx.opaque.into_inner(); . . // Encode the root position. . let header = METADATA_HEADER.len(); . let pos = root.position.get(); 3 ( 0.00%) result[header + 0] = (pos >> 24) as u8; 3 ( 0.00%) result[header + 1] = (pos >> 16) as u8; 1 ( 0.00%) result[header + 2] = (pos >> 8) as u8; 5 ( 0.00%) result[header + 3] = (pos >> 0) as u8; . . // Record metadata size for self-profiling . tcx.prof.artifact_size("crate_metadata", "crate_metadata", result.len() as u64); . 5 ( 0.00%) EncodedMetadata { raw_data: result } 12 ( 0.00%) } . . pub fn provide(providers: &mut Providers) { 2 ( 0.00%) *providers = Providers { . traits_in_crate: |tcx, cnum| { 1 ( 0.00%) assert_eq!(cnum, LOCAL_CRATE); . 1 ( 0.00%) #[derive(Default)] . struct TraitsVisitor { . traits: Vec, . } . impl ItemLikeVisitor<'_> for TraitsVisitor { . fn visit_item(&mut self, item: &hir::Item<'_>) { 208 ( 0.00%) if let hir::ItemKind::Trait(..) | hir::ItemKind::TraitAlias(..) = item.kind { . self.traits.push(item.def_id.to_def_id()); . } . } . fn visit_trait_item(&mut self, _trait_item: &hir::TraitItem<'_>) {} . fn visit_impl_item(&mut self, _impl_item: &hir::ImplItem<'_>) {} . fn visit_foreign_item(&mut self, _foreign_item: &hir::ForeignItem<'_>) {} . } . . let mut visitor = TraitsVisitor::default(); 4 ( 0.00%) tcx.hir().visit_all_item_likes(&mut visitor); . // Bring everything into deterministic order. . visitor.traits.sort_by_cached_key(|&def_id| tcx.def_path_hash(def_id)); . tcx.arena.alloc_slice(&visitor.traits) . }, . . ..*providers . }; . } -- line 2257 ---------------------------------------- 27,107 ( 0.01%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/iter/range.rs -------------------------------------------------------------------------------- Ir -- line 198 ---------------------------------------- . } . . #[inline] . #[allow(arithmetic_overflow)] . #[rustc_inherit_overflow_checks] . fn forward(start: Self, n: usize) -> Self { . // In debug builds, trigger a panic on overflow. . // This should optimize completely out in release builds. 3,602 ( 0.00%) if Self::forward_checked(start, n).is_none() { . let _ = Self::MAX + 1; . } . // Do wrapping math to allow e.g. `Step::forward(-128i8, 255)`. . start.wrapping_add(n as Self) . } . . #[inline] . #[allow(arithmetic_overflow)] -- line 214 ---------------------------------------- -- line 613 ---------------------------------------- . . if taken < n { Err(taken) } else { Ok(()) } . } . } . . impl RangeIteratorImpl for ops::Range { . #[inline] . fn spec_next(&mut self) -> Option { 753,659 ( 0.37%) if self.start < self.end { . // SAFETY: just checked precondition . let n = unsafe { Step::forward_unchecked(self.start.clone(), 1) }; . Some(mem::replace(&mut self.start, n)) . } else { . None . } . } . -- line 629 ---------------------------------------- -- line 657 ---------------------------------------- . // Otherwise 0 is returned which always safe to use. . self.start = unsafe { Step::forward_unchecked(self.start.clone(), taken) }; . . if taken < n { Err(taken) } else { Ok(()) } . } . . #[inline] . fn spec_next_back(&mut self) -> Option { 29,866 ( 0.01%) if self.start < self.end { . // SAFETY: just checked precondition . self.end = unsafe { Step::backward_unchecked(self.end.clone(), 1) }; . Some(self.end.clone()) . } else { . None . } . } . -- line 673 ---------------------------------------- -- line 708 ---------------------------------------- . . #[inline] . fn next(&mut self) -> Option { . self.spec_next() . } . . #[inline] . fn size_hint(&self) -> (usize, Option) { 33,865 ( 0.02%) if self.start < self.end { . let hint = Step::steps_between(&self.start, &self.end); . (hint.unwrap_or(usize::MAX), hint) . } else { . (0, Some(0)) . } . } . . #[inline] -- line 724 ---------------------------------------- -- line 857 ---------------------------------------- . impl FusedIterator for ops::Range {} . . #[stable(feature = "rust1", since = "1.0.0")] . impl Iterator for ops::RangeFrom { . type Item = A; . . #[inline] . fn next(&mut self) -> Option { 681 ( 0.00%) let n = Step::forward(self.start.clone(), 1); . Some(mem::replace(&mut self.start, n)) . } . . #[inline] . fn size_hint(&self) -> (usize, Option) { . (usize::MAX, None) . } . -- line 873 ---------------------------------------- -- line 998 ---------------------------------------- . . try { accum } . } . } . . impl RangeInclusiveIteratorImpl for ops::RangeInclusive { . #[inline] . fn spec_next(&mut self) -> Option { 2,439 ( 0.00%) if self.is_empty() { . return None; . } . let is_iterating = self.start < self.end; 1,601 ( 0.00%) Some(if is_iterating { . // SAFETY: just checked precondition . let n = unsafe { Step::forward_unchecked(self.start.clone(), 1) }; . mem::replace(&mut self.start, n) . } else { . self.exhausted = true; . self.start.clone() . }) . } -- line 1018 ---------------------------------------- -- line 1025 ---------------------------------------- . R: Try, . { . if self.is_empty() { . return try { init }; . } . . let mut accum = init; . 1,050 ( 0.00%) while self.start < self.end { . // SAFETY: just checked precondition . let n = unsafe { Step::forward_unchecked(self.start.clone(), 1) }; . let n = mem::replace(&mut self.start, n); . accum = f(accum, n)?; . } . . self.exhausted = true; . 38 ( 0.00%) if self.start == self.end { . accum = f(accum, self.start.clone())?; . } . . try { accum } . } . . #[inline] . fn spec_next_back(&mut self) -> Option { -- line 1050 ---------------------------------------- -- line 1098 ---------------------------------------- . . #[inline] . fn next(&mut self) -> Option { . self.spec_next() . } . . #[inline] . fn size_hint(&self) -> (usize, Option) { 632 ( 0.00%) if self.is_empty() { . return (0, Some(0)); . } . . match Step::steps_between(&self.start, &self.end) { . Some(hint) => (hint.saturating_add(1), hint.checked_add(1)), . None => (usize::MAX, None), . } . } -- line 1114 ---------------------------------------- 121,499 ( 0.06%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/tokenstream.rs -------------------------------------------------------------------------------- Ir -- line 32 ---------------------------------------- . /// . /// If the syntax extension is an MBE macro, it will attempt to match its . /// LHS token tree against the provided token tree, and if it finds a . /// match, will transcribe the RHS token tree, splicing in any captured . /// `macro_parser::matched_nonterminals` into the `SubstNt`s it finds. . /// . /// The RHS of an MBE macro is the only place `SubstNt`s are substituted. . /// Nothing special happens to misnamed or misplaced `SubstNt`s. 725,487 ( 0.35%) #[derive(Debug, Clone, PartialEq, Encodable, Decodable, HashStable_Generic)] . pub enum TokenTree { . /// A single token. 231,695 ( 0.11%) Token(Token), . /// A delimited sequence of token trees. 17,770 ( 0.01%) Delimited(DelimSpan, DelimToken, TokenStream), . } . . #[derive(Copy, Clone)] . pub enum CanSynthesizeMissingTokens { . Yes, . No, . } . -- line 53 ---------------------------------------- -- line 71 ---------------------------------------- . delim == delim2 && tts.eq_unspanned(&tts2) . } . _ => false, . } . } . . /// Retrieves the `TokenTree`'s span. . pub fn span(&self) -> Span { 64 ( 0.00%) match self { 56 ( 0.00%) TokenTree::Token(token) => token.span, 32 ( 0.00%) TokenTree::Delimited(sp, ..) => sp.entire(), . } 24 ( 0.00%) } . . /// Modify the `TokenTree`'s span in-place. . pub fn set_span(&mut self, span: Span) { 64 ( 0.00%) match self { 24 ( 0.00%) TokenTree::Token(token) => token.span = span, 16 ( 0.00%) TokenTree::Delimited(dspan, ..) => *dspan = DelimSpan::from_single(span), . } 32 ( 0.00%) } . 344 ( 0.00%) pub fn token(kind: TokenKind, span: Span) -> TokenTree { 23,904 ( 0.01%) TokenTree::Token(Token::new(kind, span)) 344 ( 0.00%) } . . /// Returns the opening delimiter as a token tree. 2,823 ( 0.00%) pub fn open_tt(span: DelimSpan, delim: DelimToken) -> TokenTree { 8,469 ( 0.00%) TokenTree::token(token::OpenDelim(delim), span.open) 2,823 ( 0.00%) } . . /// Returns the closing delimiter as a token tree. 2,809 ( 0.00%) pub fn close_tt(span: DelimSpan, delim: DelimToken) -> TokenTree { 8,427 ( 0.00%) TokenTree::token(token::CloseDelim(delim), span.close) 2,809 ( 0.00%) } . 492 ( 0.00%) pub fn uninterpolate(self) -> TokenTree { 328 ( 0.00%) match self { 1,476 ( 0.00%) TokenTree::Token(token) => TokenTree::Token(token.uninterpolate().into_owned()), . tt => tt, . } 656 ( 0.00%) } . } . . impl HashStable for TokenStream . where . CTX: crate::HashStableContext, . { 21,861 ( 0.01%) fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { 195,836 ( 0.10%) for sub_tt in self.trees() { . sub_tt.hash_stable(hcx, hasher); . } 19,432 ( 0.01%) } . } . . pub trait CreateTokenStream: sync::Send + sync::Sync { . fn create_token_stream(&self) -> AttrAnnotatedTokenStream; . } . . impl CreateTokenStream for AttrAnnotatedTokenStream { . fn create_token_stream(&self) -> AttrAnnotatedTokenStream { -- line 131 ---------------------------------------- -- line 188 ---------------------------------------- . Delimited(DelimSpan, DelimToken, AttrAnnotatedTokenStream), . /// Stores the attributes for an attribute target, . /// along with the tokens for that attribute target. . /// See `AttributesData` for more information . Attributes(AttributesData), . } . . impl AttrAnnotatedTokenStream { 3,188 ( 0.00%) pub fn new(tokens: Vec<(AttrAnnotatedTokenTree, Spacing)>) -> AttrAnnotatedTokenStream { . AttrAnnotatedTokenStream(Lrc::new(tokens)) 3,188 ( 0.00%) } . . /// Converts this `AttrAnnotatedTokenStream` to a plain `TokenStream . /// During conversion, `AttrAnnotatedTokenTree::Attributes` get 'flattened' . /// back to a `TokenStream` of the form `outer_attr attr_target`. . /// If there are inner attributes, they are inserted into the proper . /// place in the attribute target tokens. . pub fn to_tokenstream(&self) -> TokenStream { . let trees: Vec<_> = self -- line 206 ---------------------------------------- -- line 316 ---------------------------------------- . pub struct TokenStream(pub(crate) Lrc>); . . pub type TreeAndSpacing = (TokenTree, Spacing); . . // `TokenStream` is used a lot. Make sure it doesn't unintentionally get bigger. . #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))] . rustc_data_structures::static_assert_size!(TokenStream, 8); . 40,368 ( 0.02%) #[derive(Clone, Copy, Debug, PartialEq, Encodable, Decodable)] . pub enum Spacing { . Alone, . Joint, . } . . impl TokenStream { . /// Given a `TokenStream` with a `Stream` of only two arguments, return a new `TokenStream` . /// separating the two arguments with a comma for diagnostic suggestions. -- line 332 ---------------------------------------- -- line 371 ---------------------------------------- . impl From<(AttrAnnotatedTokenTree, Spacing)> for AttrAnnotatedTokenStream { . fn from((tree, spacing): (AttrAnnotatedTokenTree, Spacing)) -> AttrAnnotatedTokenStream { . AttrAnnotatedTokenStream::new(vec![(tree, spacing)]) . } . } . . impl From for TokenStream { . fn from(tree: TokenTree) -> TokenStream { 280 ( 0.00%) TokenStream::new(vec![(tree, Spacing::Alone)]) . } . } . . impl From for TreeAndSpacing { . fn from(tree: TokenTree) -> TreeAndSpacing { 7,596 ( 0.00%) (tree, Spacing::Alone) . } . } . . impl iter::FromIterator for TokenStream { . fn from_iter>(iter: I) -> Self { 168 ( 0.00%) TokenStream::new(iter.into_iter().map(Into::into).collect::>()) . } . } . . impl Eq for TokenStream {} . . impl PartialEq for TokenStream { . fn eq(&self, other: &TokenStream) -> bool { . self.trees().eq(other.trees()) -- line 399 ---------------------------------------- -- line 401 ---------------------------------------- . } . . impl TokenStream { . pub fn new(streams: Vec) -> TokenStream { . TokenStream(Lrc::new(streams)) . } . . pub fn is_empty(&self) -> bool { 1,400 ( 0.00%) self.0.is_empty() 1,400 ( 0.00%) } . . pub fn len(&self) -> usize { 78,813 ( 0.04%) self.0.len() 8 ( 0.00%) } . . pub fn from_streams(mut streams: SmallVec<[TokenStream; 2]>) -> TokenStream { . match streams.len() { . 0 => TokenStream::default(), . 1 => streams.pop().unwrap(), . _ => { . // We are going to extend the first stream in `streams` with . // the elements from the subsequent streams. This requires -- line 422 ---------------------------------------- -- line 448 ---------------------------------------- . . // Create the final `TokenStream`. . TokenStream(first_stream_lrc) . } . } . } . . pub fn trees(&self) -> Cursor { 4,939 ( 0.00%) self.clone().into_trees() 9,878 ( 0.00%) } . 4,149 ( 0.00%) pub fn into_trees(self) -> Cursor { . Cursor::new(self) 8,298 ( 0.00%) } . . /// Compares two `TokenStream`s, checking equality without regarding span information. . pub fn eq_unspanned(&self, other: &TokenStream) -> bool { . let mut t1 = self.trees(); . let mut t2 = other.trees(); . for (t1, t2) in iter::zip(&mut t1, &mut t2) { . if !t1.eq_unspanned(&t2) { . return false; . } . } . t1.next().is_none() && t2.next().is_none() . } . . pub fn map_enumerated TokenTree>(self, mut f: F) -> TokenStream { 8 ( 0.00%) TokenStream(Lrc::new( . self.0 . .iter() . .enumerate() 192 ( 0.00%) .map(|(i, (tree, is_joint))| (f(i, tree), *is_joint)) . .collect(), . )) . } . } . . // 99.5%+ of the time we have 1 or 2 elements in this vector. . #[derive(Clone)] . pub struct TokenStreamBuilder(SmallVec<[TokenStream; 2]>); -- line 488 ---------------------------------------- -- line 572 ---------------------------------------- . pub struct Cursor { . pub stream: TokenStream, . index: usize, . } . . impl Iterator for Cursor { . type Item = TokenTree; . 156,426 ( 0.08%) fn next(&mut self) -> Option { 278,058 ( 0.14%) self.next_with_spacing().map(|(tree, _)| tree) 208,568 ( 0.10%) } . } . . impl Cursor { . fn new(stream: TokenStream) -> Self { . Cursor { stream, index: 0 } . } . 133,275 ( 0.07%) pub fn next_with_spacing(&mut self) -> Option { 236,391 ( 0.12%) if self.index < self.stream.len() { 133,240 ( 0.07%) self.index += 1; 144,564 ( 0.07%) Some(self.stream.0[self.index - 1].clone()) . } else { 12,006 ( 0.01%) None . } 159,930 ( 0.08%) } . . pub fn index(&self) -> usize { . self.index . } . . pub fn append(&mut self, new_stream: TokenStream) { . if new_stream.is_empty() { . return; . } . let index = self.index; . let stream = mem::take(&mut self.stream); . *self = TokenStream::from_streams(smallvec![stream, new_stream]).into_trees(); . self.index = index; . } . 729 ( 0.00%) pub fn look_ahead(&self, n: usize) -> Option<&TokenTree> { 1,458 ( 0.00%) self.stream.0[self.index..].get(n).map(|(tree, _)| tree) 1,458 ( 0.00%) } . } . 46,316 ( 0.02%) #[derive(Debug, Copy, Clone, PartialEq, Encodable, Decodable, HashStable_Generic)] . pub struct DelimSpan { . pub open: Span, . pub close: Span, . } . . impl DelimSpan { 84 ( 0.00%) pub fn from_single(sp: Span) -> Self { . DelimSpan { open: sp, close: sp } 168 ( 0.00%) } . 2,796 ( 0.00%) pub fn from_pair(open: Span, close: Span) -> Self { . DelimSpan { open, close } 1,398 ( 0.00%) } . . pub fn dummy() -> Self { . Self::from_single(DUMMY_SP) 429 ( 0.00%) } . 448 ( 0.00%) pub fn entire(self) -> Span { . self.open.with_hi(self.close.hi()) 336 ( 0.00%) } . } 40,858 ( 0.02%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/symbol.rs -------------------------------------------------------------------------------- Ir -- line 15 ---------------------------------------- . use std::str; . . use crate::{with_session_globals, Edition, Span, DUMMY_SP}; . . #[cfg(test)] . mod tests; . . // The proc macro code for this is in `compiler/rustc_macros/src/symbols.rs`. 8 ( 0.00%) symbols! { . // After modifying this list adjust `is_special`, `is_used_keyword`/`is_unused_keyword`, . // this should be rarely necessary though if the keywords are kept in alphabetic order. . Keywords { . // Special reserved identifiers used internally for elided lifetimes, . // unnamed method parameters, crate root module, error recovery etc. . Empty: "", . PathRoot: "{{root}}", . DollarCrate: "$crate", -- line 31 ---------------------------------------- -- line 1498 ---------------------------------------- . write_str, . writeln_macro, . x87_reg, . xer, . xmm_reg, . ymm_reg, . zmm_reg, . } 10 ( 0.00%) } . 6,754 ( 0.00%) #[derive(Copy, Clone, Eq, HashStable_Generic, Encodable, Decodable)] . pub struct Ident { . pub name: Symbol, . pub span: Span, . } . . impl Ident { . #[inline] . /// Constructs a new identifier from a symbol and a span. . pub const fn new(name: Symbol, span: Span) -> Ident { . Ident { name, span } 47,414 ( 0.02%) } . . /// Constructs a new identifier with a dummy span. . #[inline] . pub const fn with_dummy_span(name: Symbol) -> Ident { . Ident::new(name, DUMMY_SP) . } . . #[inline] . pub fn empty() -> Ident { . Ident::with_dummy_span(kw::Empty) . } . . /// Maps a string to an identifier with a dummy span. 6 ( 0.00%) pub fn from_str(string: &str) -> Ident { 6 ( 0.00%) Ident::with_dummy_span(Symbol::intern(string)) 24 ( 0.00%) } . . /// Maps a string and a span to an identifier. 42 ( 0.00%) pub fn from_str_and_span(string: &str, span: Span) -> Ident { 21 ( 0.00%) Ident::new(Symbol::intern(string), span) 42 ( 0.00%) } . . /// Replaces `lo` and `hi` with those from `span`, but keep hygiene context. 4,200 ( 0.00%) pub fn with_span_pos(self, span: Span) -> Ident { . Ident::new(self.name, span.with_ctxt(self.span.ctxt())) 2,625 ( 0.00%) } . . pub fn without_first_quote(self) -> Ident { . Ident::new(Symbol::intern(self.as_str().trim_start_matches('\'')), self.span) . } . . /// "Normalize" ident for use in comparisons using "item hygiene". . /// Identifiers with same string value become same if they came from the same macro 2.0 macro . /// (e.g., `macro` item, but not `macro_rules` item) and stay different if they came from . /// different macro 2.0 macros. . /// Technically, this operation strips all non-opaque marks from ident's syntactic context. 19,719 ( 0.01%) pub fn normalize_to_macros_2_0(self) -> Ident { . Ident::new(self.name, self.span.normalize_to_macros_2_0()) 15,337 ( 0.01%) } . . /// "Normalize" ident for use in comparisons using "local variable hygiene". . /// Identifiers with same string value become same if they came from the same non-transparent . /// macro (e.g., `macro` or `macro_rules!` items) and stay different if they came from different . /// non-transparent macros. . /// Technically, this operation strips all transparent marks from ident's syntactic context. 5,976 ( 0.00%) pub fn normalize_to_macro_rules(self) -> Ident { . Ident::new(self.name, self.span.normalize_to_macro_rules()) 4,648 ( 0.00%) } . . /// Access the underlying string. This is a slowish operation because it . /// requires locking the symbol interner. . /// . /// Note that the lifetime of the return value is a lie. See . /// `Symbol::as_str()` for details. . pub fn as_str(&self) -> &str { 37 ( 0.00%) self.name.as_str() . } . } . . impl PartialEq for Ident { 5,514 ( 0.00%) fn eq(&self, rhs: &Self) -> bool { 12,970 ( 0.01%) self.name == rhs.name && self.span.ctxt() == rhs.span.ctxt() 7,352 ( 0.00%) } . } . . impl Hash for Ident { . fn hash(&self, state: &mut H) { 39 ( 0.00%) self.name.hash(state); 2,749 ( 0.00%) self.span.ctxt().hash(state); . } . } . . impl fmt::Debug for Ident { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . fmt::Display::fmt(self, f)?; . fmt::Debug::fmt(&self.span.ctxt(), f) . } . } . . /// This implementation is supposed to be used in error messages, so it's expected to be identical . /// to printing the original identifier token written in source code (`token_to_string`), . /// except that AST identifiers don't keep the rawness flag, so we have to guess it. . impl fmt::Display for Ident { 4 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 5 ( 0.00%) fmt::Display::fmt(&IdentPrinter::new(self.name, self.is_raw_guess(), None), f) 4 ( 0.00%) } . } . . /// This is the most general way to print identifiers. . /// AST pretty-printer is used as a fallback for turning AST structures into token streams for . /// proc macros. Additionally, proc macros may stringify their input and expect it survive the . /// stringification (especially true for proc macro derives written between Rust 1.15 and 1.30). . /// So we need to somehow pretty-print `$crate` in a way preserving at least some of its . /// hygiene data, most importantly name of the crate it refers to. -- line 1613 ---------------------------------------- -- line 1622 ---------------------------------------- . is_raw: bool, . /// Span used for retrieving the crate name to which `$crate` refers to, . /// if this field is `None` then the `$crate` conversion doesn't happen. . convert_dollar_crate: Option, . } . . impl IdentPrinter { . /// The most general `IdentPrinter` constructor. Do not use this. 57 ( 0.00%) pub fn new(symbol: Symbol, is_raw: bool, convert_dollar_crate: Option) -> IdentPrinter { 321 ( 0.00%) IdentPrinter { symbol, is_raw, convert_dollar_crate } 57 ( 0.00%) } . . /// This implementation is supposed to be used when printing identifiers . /// as a part of pretty-printing for larger AST pieces. . /// Do not use this either. 44 ( 0.00%) pub fn for_ast_ident(ident: Ident, is_raw: bool) -> IdentPrinter { 44 ( 0.00%) IdentPrinter::new(ident.name, is_raw, Some(ident.span)) 22 ( 0.00%) } . } . . impl fmt::Display for IdentPrinter { 400 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 160 ( 0.00%) if self.is_raw { . f.write_str("r#")?; 80 ( 0.00%) } else if self.symbol == kw::DollarCrate { . if let Some(span) = self.convert_dollar_crate { . let converted = span.ctxt().dollar_crate_name(); . if !converted.is_path_segment_keyword() { . f.write_str("::")?; . } . return fmt::Display::fmt(&converted, f); . } . } -- line 1654 ---------------------------------------- -- line 1656 ---------------------------------------- . } . } . . /// An newtype around `Ident` that calls [Ident::normalize_to_macro_rules] on . /// construction. . // FIXME(matthewj, petrochenkov) Use this more often, add a similar . // `ModernIdent` struct and use that as well. . #[derive(Copy, Clone, Eq, PartialEq, Hash)] 3,266 ( 0.00%) pub struct MacroRulesNormalizedIdent(Ident); . . impl MacroRulesNormalizedIdent { . pub fn new(ident: Ident) -> Self { 612 ( 0.00%) Self(ident.normalize_to_macro_rules()) . } . } . . impl fmt::Debug for MacroRulesNormalizedIdent { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . fmt::Debug::fmt(&self.0, f) . } . } -- line 1676 ---------------------------------------- -- line 1686 ---------------------------------------- . /// Internally, a `Symbol` is implemented as an index, and all operations . /// (including hashing, equality, and ordering) operate on that index. The use . /// of `rustc_index::newtype_index!` means that `Option` only takes up 4 bytes, . /// because `rustc_index::newtype_index!` reserves the last 256 values for tagging purposes. . /// . /// Note that `Symbol` cannot directly be a `rustc_index::newtype_index!` because it . /// implements `fmt::Debug`, `Encodable`, and `Decodable` in special ways. . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] 8,097 ( 0.00%) pub struct Symbol(SymbolIndex); . . rustc_index::newtype_index! { . struct SymbolIndex { .. } . } . . impl Symbol { . const fn new(n: u32) -> Self { . Symbol(SymbolIndex::from_u32(n)) 28 ( 0.00%) } . . /// Maps a string to its interned representation. 186,651 ( 0.09%) pub fn intern(string: &str) -> Self { . with_session_globals(|session_globals| session_globals.symbol_interner.intern(string)) 186,651 ( 0.09%) } . . /// Access the underlying string. This is a slowish operation because it . /// requires locking the symbol interner. . /// . /// Note that the lifetime of the return value is a lie. It's not the same . /// as `&self`, but actually tied to the lifetime of the underlying . /// interner. Interners are long-lived, and there are very few of them, and . /// this function is typically used for short-lived things, so in practice . /// it works out ok. 48,696 ( 0.02%) pub fn as_str(&self) -> &str { 16,232 ( 0.01%) with_session_globals(|session_globals| unsafe { . std::mem::transmute::<&str, &str>(session_globals.symbol_interner.get(*self)) . }) 64,928 ( 0.03%) } . . pub fn as_u32(self) -> u32 { . self.0.as_u32() . } . . pub fn is_empty(self) -> bool { . self == kw::Empty . } -- line 1730 ---------------------------------------- -- line 1740 ---------------------------------------- . . impl fmt::Debug for Symbol { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . fmt::Debug::fmt(self.as_str(), f) . } . } . . impl fmt::Display for Symbol { 176 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 1,248 ( 0.00%) fmt::Display::fmt(self.as_str(), f) . } . } . . impl Encodable for Symbol { . fn encode(&self, s: &mut S) -> Result<(), S::Error> { 25,354 ( 0.01%) s.emit_str(self.as_str()) . } . } . . impl Decodable for Symbol { . #[inline] 4,402 ( 0.00%) fn decode(d: &mut D) -> Symbol { 45,190 ( 0.02%) Symbol::intern(&d.read_str()) . } . } . . impl HashStable for Symbol { . #[inline] 360 ( 0.00%) fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { 20,067 ( 0.01%) self.as_str().hash_stable(hcx, hasher); 342 ( 0.00%) } . } . . impl ToStableHashKey for Symbol { . type KeyType = String; . #[inline] . fn to_stable_hash_key(&self, _: &CTX) -> String { . self.as_str().to_string() . } -- line 1778 ---------------------------------------- -- line 1785 ---------------------------------------- . // . // The `FxHashMap`+`Vec` pair could be replaced by `FxIndexSet`, but #75278 . // found that to regress performance up to 2% in some cases. This might be . // revisited after further improvements to `indexmap`. . // . // This type is private to prevent accidentally constructing more than one . // `Interner` on the same thread, which makes it easy to mixup `Symbol`s . // between `Interner`s. 2 ( 0.00%) #[derive(Default)] . struct InternerInner { . arena: DroplessArena, . names: FxHashMap<&'static str, Symbol>, . strings: Vec<&'static str>, . } . . impl Interner { . fn prefill(init: &[&'static str]) -> Self { 30 ( 0.00%) Interner(Lock::new(InternerInner { . strings: init.into(), . names: init.iter().copied().zip((0..).map(Symbol::new)).collect(), . ..Default::default() . })) . } . . #[inline] . fn intern(&self, string: &str) -> Symbol { . let mut inner = self.0.lock(); 31,712 ( 0.02%) if let Some(&name) = inner.names.get(string) { . return name; . } . 4,883 ( 0.00%) let name = Symbol::new(inner.strings.len() as u32); . . // SAFETY: we convert from `&str` to `&[u8]`, clone it into the arena, . // and immediately convert the clone back to `&[u8], all because there . // is no `inner.arena.alloc_str()` method. This is clearly safe. . let string: &str = . unsafe { str::from_utf8_unchecked(inner.arena.alloc_slice(string.as_bytes())) }; . . // SAFETY: we can extend the arena allocation to `'static` because we -- line 1824 ---------------------------------------- -- line 1831 ---------------------------------------- . // #91445 for details. . inner.names.insert(string, name); . name . } . . // Get the symbol as a string. `Symbol::as_str()` should be used in . // preference to this function. . fn get(&self, symbol: Symbol) -> &str { 48,696 ( 0.02%) self.0.lock().strings[symbol.0.as_usize()] . } . } . . // This module has a very short name because it's used a lot. . /// This module contains all the defined keyword `Symbol`s. . /// . /// Given that `kw` is imported, use them like `kw::keyword_name`. . /// For example `kw::Loop` or `kw::Break`. -- line 1847 ---------------------------------------- -- line 1863 ---------------------------------------- . . // Used from a macro in `librustc_feature/accepted.rs` . pub use super::kw::MacroRules as macro_rules; . . /// Get the symbol for an integer. . /// . /// The first few non-negative integers each have a static symbol and therefore . /// are fast. 52 ( 0.00%) pub fn integer + Copy + ToString>(n: N) -> Symbol { 40 ( 0.00%) if let Result::Ok(idx) = n.try_into() { 8 ( 0.00%) if idx < 10 { 56 ( 0.00%) return Symbol::new(super::SYMBOL_DIGITS_BASE + idx as u32); . } . } . Symbol::intern(&n.to_string()) . } . } . . impl Symbol { . fn is_special(self) -> bool { . self <= kw::Underscore . } . . fn is_used_keyword_always(self) -> bool { 171 ( 0.00%) self >= kw::As && self <= kw::While . } . . fn is_used_keyword_conditional(self, edition: impl FnOnce() -> Edition) -> bool { 1,791 ( 0.00%) (self >= kw::Async && self <= kw::Dyn) && edition() >= Edition::Edition2018 . } . . fn is_unused_keyword_always(self) -> bool { 171 ( 0.00%) self >= kw::Abstract && self <= kw::Yield . } . . fn is_unused_keyword_conditional(self, edition: impl FnOnce() -> Edition) -> bool { 57 ( 0.00%) self == kw::Try && edition() >= Edition::Edition2018 . } . . pub fn is_reserved(self, edition: impl Copy + FnOnce() -> Edition) -> bool { 2,770 ( 0.00%) self.is_special() . || self.is_used_keyword_always() . || self.is_unused_keyword_always() . || self.is_used_keyword_conditional(edition) . || self.is_unused_keyword_conditional(edition) . } . . /// A keyword or reserved identifier that can be used as a path segment. . pub fn is_path_segment_keyword(self) -> bool { 11,165 ( 0.01%) self == kw::Super . || self == kw::SelfLower . || self == kw::SelfUpper . || self == kw::Crate . || self == kw::PathRoot . || self == kw::DollarCrate . } . . /// Returns `true` if the symbol is `true` or `false`. . pub fn is_bool_lit(self) -> bool { 254 ( 0.00%) self == kw::True || self == kw::False 254 ( 0.00%) } . . /// Returns `true` if this symbol can be a raw identifier. . pub fn can_be_raw(self) -> bool { 92 ( 0.00%) self != kw::Empty && self != kw::Underscore && !self.is_path_segment_keyword() . } . } . . impl Ident { . // Returns `true` for reserved identifiers used internally for elided lifetimes, . // unnamed method parameters, crate root module, error recovery etc. . pub fn is_special(self) -> bool { . self.name.is_special() 57 ( 0.00%) } . . /// Returns `true` if the token is a keyword used in the language. 57 ( 0.00%) pub fn is_used_keyword(self) -> bool { . // Note: `span.edition()` is relatively expensive, don't call it unless necessary. 57 ( 0.00%) self.name.is_used_keyword_always() . || self.name.is_used_keyword_conditional(|| self.span.edition()) 114 ( 0.00%) } . . /// Returns `true` if the token is a keyword reserved for possible future use. 57 ( 0.00%) pub fn is_unused_keyword(self) -> bool { . // Note: `span.edition()` is relatively expensive, don't call it unless necessary. 57 ( 0.00%) self.name.is_unused_keyword_always() . || self.name.is_unused_keyword_conditional(|| self.span.edition()) 114 ( 0.00%) } . . /// Returns `true` if the token is either a special identifier or a keyword. 508 ( 0.00%) pub fn is_reserved(self) -> bool { . // Note: `span.edition()` is relatively expensive, don't call it unless necessary. . self.name.is_reserved(|| self.span.edition()) 1,016 ( 0.00%) } . . /// A keyword or reserved identifier that can be used as a path segment. . pub fn is_path_segment_keyword(self) -> bool { . self.name.is_path_segment_keyword() 1,595 ( 0.00%) } . . /// We see this identifier in a normal identifier position, like variable name or a type. . /// How was it written originally? Did it use the raw form? Let's try to guess. 45 ( 0.00%) pub fn is_raw_guess(self) -> bool { . self.name.can_be_raw() && self.is_reserved() 90 ( 0.00%) } . } 38,567 ( 0.02%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_query_system/src/query/plumbing.rs -------------------------------------------------------------------------------- Ir -- line 43 ---------------------------------------- . pub(super) key_hash: u64, . shard: usize, . } . . // We compute the key's hash once and then use it for both the . // shard lookup and the hashmap lookup. This relies on the fact . // that both of them use `FxHasher`. . fn hash_for_shard(key: &K) -> u64 { 82 ( 0.00%) let mut hasher = FxHasher::default(); 8 ( 0.00%) key.hash(&mut hasher); . hasher.finish() . } . . impl QueryCacheStore { 42 ( 0.00%) pub(super) fn get_lookup<'tcx>( . &'tcx self, . key: &C::Key, . ) -> (QueryLookup, LockGuard<'tcx, C::Sharded>) { . let key_hash = hash_for_shard(key); . let shard = get_shard_index_by_hash(key_hash); . let lock = self.shards.get_shard_by_index(shard).lock(); 148 ( 0.00%) (QueryLookup { key_hash, shard }, lock) 111 ( 0.00%) } . . pub fn iter_results(&self, f: &mut dyn FnMut(&C::Key, &C::Value, DepNodeIndex)) { . self.cache.iter(&self.shards, f) . } . } . . struct QueryStateShard { . active: FxHashMap>, -- line 73 ---------------------------------------- -- line 190 ---------------------------------------- . ) -> TryGetJob<'b, CTX::DepKind, K> . where . CTX: QueryContext, . { . let shard = lookup.shard; . let mut state_lock = state.shards.get_shard_by_index(shard).lock(); . let lock = &mut *state_lock; . 37,414 ( 0.02%) match lock.active.entry(key) { . Entry::Vacant(entry) => { . // Generate an id unique within this shard. 17,570 ( 0.01%) let id = lock.jobs.checked_add(1).unwrap(); 17,570 ( 0.01%) lock.jobs = id; . let id = QueryShardJobId(NonZeroU32::new(id).unwrap()); . . let job = tcx.current_query_job(); . let job = QueryJob::new(id, span, job); . . let key = entry.key().clone(); . entry.insert(QueryResult::Started(job)); . . let global_id = QueryJobId::new(id, shard, dep_kind); . let owner = JobOwner { state, id: global_id, key }; 155 ( 0.00%) return TryGetJob::NotYetStarted(owner); . } . Entry::Occupied(mut entry) => { . match entry.get_mut() { . #[cfg(not(parallel_compiler))] . QueryResult::Started(job) => { . let id = QueryJobId::new(job.id, shard, dep_kind); . . drop(state_lock); -- line 221 ---------------------------------------- -- line 262 ---------------------------------------- . cache: &QueryCacheStore, . result: C::Value, . dep_node_index: DepNodeIndex, . ) -> C::Stored . where . C: QueryCache, . { . // We can move out of `self` here because we `mem::forget` it below 18,629 ( 0.01%) let key = unsafe { ptr::read(&self.key) }; . let state = self.state; . . // Forget ourself so our destructor won't poison the query . mem::forget(self); . 447 ( 0.00%) let (job, result) = { . let key_hash = hash_for_shard(&key); . let shard = get_shard_index_by_hash(key_hash); . let job = { . let mut lock = state.shards.get_shard_by_index(shard).lock(); . match lock.active.remove(&key).unwrap() { . QueryResult::Started(job) => job, . QueryResult::Poisoned => panic!(), . } . }; . let result = { . let mut lock = cache.shards.get_shard_by_index(shard).lock(); 34,342 ( 0.02%) cache.cache.complete(&mut lock, key, result, dep_node_index) . }; 266 ( 0.00%) (job, result) . }; . . job.signal_complete(); . result . } . } . . impl<'tcx, D, K> Drop for JobOwner<'tcx, D, K> -- line 298 ---------------------------------------- -- line 347 ---------------------------------------- . Cycle(CycleError), . } . . /// Checks if the query is already computed and in the cache. . /// It returns the shard index and a lock guard to the shard, . /// which will be used if the query is not in the cache and we need . /// to compute it. . #[inline] 42,210 ( 0.02%) pub fn try_get_cached<'a, CTX, C, R, OnHit>( . tcx: CTX, . cache: &'a QueryCacheStore, . key: &C::Key, . // `on_hit` can be called while holding a lock to the query cache . on_hit: OnHit, . ) -> Result . where . C: QueryCache, . CTX: DepContext, . OnHit: FnOnce(&C::Stored) -> R, . { . cache.cache.lookup(cache, &key, |value, index| { 42,420 ( 0.02%) if unlikely!(tcx.profiler().enabled()) { . tcx.profiler().query_cache_hit(index.into()); . } . tcx.dep_graph().read_index(index); 23,466 ( 0.01%) on_hit(value) . }) 48,048 ( 0.02%) } . 160,122 ( 0.08%) fn try_execute_query( . tcx: CTX, . state: &QueryState, . cache: &QueryCacheStore, . span: Span, . key: C::Key, . lookup: QueryLookup, . dep_node: Option>, . query: &QueryVtable, -- line 384 ---------------------------------------- -- line 391 ---------------------------------------- . match JobOwner::<'_, CTX::DepKind, C::Key>::try_start( . &tcx, . state, . span, . key.clone(), . lookup, . query.dep_kind, . ) { 71,672 ( 0.04%) TryGetJob::NotYetStarted(job) => { 193,194 ( 0.09%) let (result, dep_node_index) = execute_job(tcx, key, dep_node, query, job.id); 17,955 ( 0.01%) let result = job.complete(cache, result, dep_node_index); 24,922 ( 0.01%) (result, Some(dep_node_index)) . } . TryGetJob::Cycle(error) => { . let result = mk_cycle(tcx, error, query.handle_cycle_error, &cache.cache); . (result, None) . } . #[cfg(parallel_compiler)] . TryGetJob::JobCompleted(query_blocked_prof_timer) => { . let (v, index) = cache -- line 410 ---------------------------------------- -- line 415 ---------------------------------------- . if unlikely!(tcx.dep_context().profiler().enabled()) { . tcx.dep_context().profiler().query_cache_hit(index.into()); . } . query_blocked_prof_timer.finish_with_query_invocation_id(index.into()); . . (v, Some(index)) . } . } 167,796 ( 0.08%) } . . fn execute_job( . tcx: CTX, . key: K, . mut dep_node_opt: Option>, . query: &QueryVtable, . job_id: QueryJobId, . ) -> (V, DepNodeIndex) -- line 431 ---------------------------------------- -- line 432 ---------------------------------------- . where . K: Clone + DepNodeParams, . V: Debug, . CTX: QueryContext, . { . let dep_graph = tcx.dep_context().dep_graph(); . . // Fast path for when incr. comp. is off. 17,570 ( 0.01%) if !dep_graph.is_fully_enabled() { . let prof_timer = tcx.dep_context().profiler().query_provider(); 24,347 ( 0.01%) let result = tcx.start_query(job_id, None, || query.compute(*tcx.dep_context(), key)); . let dep_node_index = dep_graph.next_virtual_depnode_index(); . prof_timer.finish_with_query_invocation_id(dep_node_index.into()); 11,093 ( 0.01%) return (result, dep_node_index); . } . . if !query.anon && !query.eval_always { . // `to_dep_node` is expensive for some `DepKind`s. . let dep_node = . dep_node_opt.get_or_insert_with(|| query.to_dep_node(*tcx.dep_context(), &key)); . . // The diagnostics for this query will be promoted to the current session during -- line 453 ---------------------------------------- -- line 691 ---------------------------------------- . /// Executing `query::ensure(D)` is considered a read of the dep-node `D`. . /// Returns true if the query should still run. . /// . /// This function is particularly useful when executing passes for their . /// side-effects -- e.g., in order to report errors for erroneous programs. . /// . /// Note: The optimization is only available during incr. comp. . #[inline(never)] 3,824 ( 0.00%) fn ensure_must_run( . tcx: CTX, . key: &K, . query: &QueryVtable, . ) -> (bool, Option>) . where . K: crate::dep_graph::DepNodeParams, . CTX: QueryContext, . { 956 ( 0.00%) if query.eval_always { 4 ( 0.00%) return (true, None); . } . . // Ensuring an anonymous query makes no sense 952 ( 0.00%) assert!(!query.anon); . . let dep_node = query.to_dep_node(*tcx.dep_context(), key); . . let dep_graph = tcx.dep_context().dep_graph(); 2,665 ( 0.00%) match dep_graph.try_mark_green(tcx, &dep_node) { . None => { . // A None return from `try_mark_green` means that this is either . // a new dep node or that the dep node has already been marked red. . // Either way, we can't call `dep_graph.read()` as we don't have the . // DepNodeIndex. We must invoke the query itself. The performance cost . // this introduces should be negligible as we'll immediately hit the . // in-memory cache, or another query down the line will. 2,856 ( 0.00%) (true, Some(dep_node)) . } . Some((_, dep_node_index)) => { . dep_graph.read_index(dep_node_index); . tcx.dep_context().profiler().query_cache_hit(dep_node_index.into()); . (false, None) . } . } 3,824 ( 0.00%) } . . pub enum QueryMode { . Get, . Ensure, . } . 169,215 ( 0.08%) pub fn get_query( . tcx: CTX, . span: Span, . key: Q::Key, . lookup: QueryLookup, . mode: QueryMode, . ) -> Option . where . Q: QueryDescription, . Q::Key: DepNodeParams, . CTX: QueryContext, . { . let query = Q::make_vtable(tcx, &key); 35,598 ( 0.02%) let dep_node = if let QueryMode::Ensure = mode { 4,696 ( 0.00%) let (must_run, dep_node) = ensure_must_run(tcx, &key, &query); 478 ( 0.00%) if !must_run { . return None; . } 977 ( 0.00%) dep_node . } else { . None . }; . . debug!("ty::query::get_query<{}>(key={:?}, span={:?})", Q::NAME, key, span); 251,185 ( 0.12%) let (result, dep_node_index) = try_execute_query( . tcx, . Q::query_state(tcx), . Q::query_cache(tcx), . span, 568 ( 0.00%) key, . lookup, 69,526 ( 0.03%) dep_node, . &query, . ); 35,140 ( 0.02%) if let Some(dep_node_index) = dep_node_index { . tcx.dep_context().dep_graph().read_index(dep_node_index) . } 4,994 ( 0.00%) Some(result) 173,762 ( 0.08%) } . . pub fn force_query(tcx: CTX, key: Q::Key, dep_node: DepNode) . where . Q: QueryDescription, . Q::Key: DepNodeParams, . CTX: QueryContext, . { . // We may be concurrently trying both execute and force a query. -- line 787 ---------------------------------------- 150,731 ( 0.07%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_expand/src/mbe/macro_check.rs -------------------------------------------------------------------------------- Ir -- line 131 ---------------------------------------- . /// The previous elements. . prev: &'a Stack<'a, T>, . }, . } . . impl<'a, T> Stack<'a, T> { . /// Returns whether a stack is empty. . fn is_empty(&self) -> bool { 62 ( 0.00%) matches!(*self, Stack::Empty) . } . . /// Returns a new stack with an element of top. . fn push(&'a self, top: T) -> Stack<'a, T> { 4,390 ( 0.00%) Stack::Push { top, prev: self } . } . } . . impl<'a, T> Iterator for &'a Stack<'a, T> { . type Item = &'a T; . . // Iterates from top to bottom of the stack. . fn next(&mut self) -> Option<&'a T> { 8,274 ( 0.00%) match *self { . Stack::Empty => None, . Stack::Push { ref top, ref prev } => { . *self = prev; . Some(top) . } . } . } . } . . impl From<&Stack<'_, KleeneToken>> for SmallVec<[KleeneToken; 1]> { 14,832 ( 0.01%) fn from(ops: &Stack<'_, KleeneToken>) -> SmallVec<[KleeneToken; 1]> { . let mut ops: SmallVec<[KleeneToken; 1]> = ops.cloned().collect(); . // The stack is innermost on top. We want outermost first. . ops.reverse(); . ops 14,832 ( 0.01%) } . } . . /// Information attached to a meta-variable binder in LHS. . struct BinderInfo { . /// The span of the meta-variable in LHS. . span: Span, . /// The stack of Kleene operators (outermost first). . ops: SmallVec<[KleeneToken; 1]>, -- line 177 ---------------------------------------- -- line 190 ---------------------------------------- . . /// Checks that meta-variables are used correctly in a macro definition. . /// . /// Arguments: . /// - `sess` is used to emit diagnostics and lints . /// - `node_id` is used to emit lints . /// - `span` is used when no spans are available . /// - `lhses` and `rhses` should have the same length and represent the macro definition 176 ( 0.00%) pub(super) fn check_meta_variables( . sess: &ParseSess, . node_id: NodeId, . span: Span, . lhses: &[TokenTree], . rhses: &[TokenTree], . ) -> bool { 44 ( 0.00%) if lhses.len() != rhses.len() { . sess.span_diagnostic.span_bug(span, "length mismatch between LHSes and RHSes") . } 22 ( 0.00%) let mut valid = true; 66 ( 0.00%) for (lhs, rhs) in iter::zip(lhses, rhses) { . let mut binders = Binders::default(); 252 ( 0.00%) check_binders(sess, node_id, lhs, &Stack::Empty, &mut binders, &Stack::Empty, &mut valid); 224 ( 0.00%) check_occurrences(sess, node_id, rhs, &Stack::Empty, &binders, &Stack::Empty, &mut valid); . } . valid 176 ( 0.00%) } . . /// Checks `lhs` as part of the LHS of a macro definition, extends `binders` with new binders, and . /// sets `valid` to false in case of errors. . /// . /// Arguments: . /// - `sess` is used to emit diagnostics and lints . /// - `node_id` is used to emit lints . /// - `lhs` is checked as part of a LHS . /// - `macros` is the stack of possible outer macros . /// - `binders` contains the binders of the LHS . /// - `ops` is the stack of Kleene operators from the LHS . /// - `valid` is set in case of errors 1,988 ( 0.00%) fn check_binders( . sess: &ParseSess, . node_id: NodeId, . lhs: &TokenTree, . macros: &Stack<'_, MacroState<'_>>, . binders: &mut Binders, . ops: &Stack<'_, KleeneToken>, . valid: &mut bool, . ) { 710 ( 0.00%) match *lhs { . TokenTree::Token(..) => {} . // This can only happen when checking a nested macro because this LHS is then in the RHS of . // the outer macro. See ui/macros/macro-of-higher-order.rs where $y:$fragment in the . // LHS of the nested macro (and RHS of the outer macro) is parsed as MetaVar(y) Colon . // MetaVar(fragment) and not as MetaVarDecl(y, fragment). . TokenTree::MetaVar(span, name) => { . if macros.is_empty() { . sess.span_diagnostic.span_bug(span, "unexpected MetaVar in lhs"); -- line 245 ---------------------------------------- -- line 255 ---------------------------------------- . // 2. The meta-variable is free: This is a binder. . binders.insert(name, BinderInfo { span, ops: ops.into() }); . } else { . // 3. The meta-variable is bound: This is an occurrence. . check_occurrences(sess, node_id, lhs, macros, binders, ops, valid); . } . } . // Similarly, this can only happen when checking a toplevel macro. 248 ( 0.00%) TokenTree::MetaVarDecl(span, name, _kind) => { 62 ( 0.00%) if !macros.is_empty() { . sess.span_diagnostic.span_bug(span, "unexpected MetaVarDecl in nested lhs"); . } 372 ( 0.00%) let name = MacroRulesNormalizedIdent::new(name); . if let Some(prev_info) = get_binder_info(macros, binders, name) { . // Duplicate binders at the top-level macro definition are errors. The lint is only . // for nested macro definitions. . sess.span_diagnostic . .struct_span_err(span, "duplicate matcher binding") . .span_label(span, "duplicate binding") . .span_label(prev_info.span, "previous binding") . .emit(); . *valid = false; . } else { . binders.insert(name, BinderInfo { span, ops: ops.into() }); . } . } . TokenTree::Delimited(_, ref del) => { 34 ( 0.00%) for tt in &del.tts { 840 ( 0.00%) check_binders(sess, node_id, tt, macros, binders, ops, valid); . } . } . TokenTree::Sequence(_, ref seq) => { 18 ( 0.00%) let ops = ops.push(seq.kleene); . for tt in &seq.tts { 72 ( 0.00%) check_binders(sess, node_id, tt, macros, binders, &ops, valid); . } . } . } 1,136 ( 0.00%) } . . /// Returns the binder information of a meta-variable. . /// . /// Arguments: . /// - `macros` is the stack of possible outer macros . /// - `binders` contains the current binders . /// - `name` is the name of the meta-variable we are looking for . fn get_binder_info<'a>( . mut macros: &'a Stack<'a, MacroState<'a>>, . binders: &'a Binders, . name: MacroRulesNormalizedIdent, . ) -> Option<&'a BinderInfo> { 124 ( 0.00%) binders.get(&name).or_else(|| macros.find_map(|state| state.binders.get(&name))) . } . . /// Checks `rhs` as part of the RHS of a macro definition and sets `valid` to false in case of . /// errors. . /// . /// Arguments: . /// - `sess` is used to emit diagnostics and lints . /// - `node_id` is used to emit lints . /// - `rhs` is checked as part of a RHS . /// - `macros` is the stack of possible outer macros . /// - `binders` contains the binders of the associated LHS . /// - `ops` is the stack of Kleene operators from the RHS . /// - `valid` is set in case of errors 51,997 ( 0.03%) fn check_occurrences( . sess: &ParseSess, . node_id: NodeId, . rhs: &TokenTree, . macros: &Stack<'_, MacroState<'_>>, . binders: &Binders, . ops: &Stack<'_, KleeneToken>, . valid: &mut bool, . ) { 23,635 ( 0.01%) match *rhs { . TokenTree::Token(..) => {} . TokenTree::MetaVarDecl(span, _name, _kind) => { . sess.span_diagnostic.span_bug(span, "unexpected MetaVarDecl in rhs") . } 1,632 ( 0.00%) TokenTree::MetaVar(span, name) => { 1,224 ( 0.00%) let name = MacroRulesNormalizedIdent::new(name); . check_ops_is_prefix(sess, node_id, macros, binders, ops, span, name); . } . TokenTree::Delimited(_, ref del) => { 9,392 ( 0.00%) check_nested_occurrences(sess, node_id, &del.tts, macros, binders, ops, valid); . } . TokenTree::Sequence(_, ref seq) => { 12 ( 0.00%) let ops = ops.push(seq.kleene); 28 ( 0.00%) check_nested_occurrences(sess, node_id, &seq.tts, macros, binders, &ops, valid); . } . } 36,642 ( 0.02%) } . . /// Represents the processed prefix of a nested macro. . #[derive(Clone, Copy, PartialEq, Eq)] . enum NestedMacroState { . /// Nothing that matches a nested macro definition was processed yet. . Empty, . /// The token `macro_rules` was processed. . MacroRules, -- line 354 ---------------------------------------- -- line 371 ---------------------------------------- . /// Arguments: . /// - `sess` is used to emit diagnostics and lints . /// - `node_id` is used to emit lints . /// - `tts` is checked as part of a RHS and may contain macro definitions . /// - `macros` is the stack of possible outer macros . /// - `binders` contains the binders of the associated LHS . /// - `ops` is the stack of Kleene operators from the RHS . /// - `valid` is set in case of errors 16,492 ( 0.01%) fn check_nested_occurrences( . sess: &ParseSess, . node_id: NodeId, . tts: &[TokenTree], . macros: &Stack<'_, MacroState<'_>>, . binders: &Binders, . ops: &Stack<'_, KleeneToken>, . valid: &mut bool, . ) { . let mut state = NestedMacroState::Empty; . let nested_macros = macros.push(MacroState { binders, ops: ops.into() }); . let mut nested_binders = Binders::default(); . for tt in tts { 56,578 ( 0.03%) match (state, tt) { . ( . NestedMacroState::Empty, 3,548 ( 0.00%) &TokenTree::Token(Token { kind: TokenKind::Ident(name, false), .. }), . ) => { 28,384 ( 0.01%) if name == kw::MacroRules { . state = NestedMacroState::MacroRules; . } else if name == kw::Macro { . state = NestedMacroState::Macro; . } . } . ( . NestedMacroState::MacroRules, . &TokenTree::Token(Token { kind: TokenKind::Not, .. }), -- line 405 ---------------------------------------- -- line 474 ---------------------------------------- . &nested_macros, . &nested_binders, . &Stack::Empty, . valid, . ); . } . (_, ref tt) => { . state = NestedMacroState::Empty; 42,291 ( 0.02%) check_occurrences(sess, node_id, tt, macros, binders, ops, valid); . } . } . } 9,424 ( 0.00%) } . . /// Checks the body of nested macro, returns where the check stopped, and sets `valid` to false in . /// case of errors. . /// . /// The token trees are checked as long as they look like a list of (LHS) => {RHS} token trees. This . /// check is a best-effort to detect a macro definition. It returns the position in `tts` where we . /// stopped checking because we detected we were not in a macro definition anymore. . /// -- line 494 ---------------------------------------- -- line 557 ---------------------------------------- . name: MacroRulesNormalizedIdent, . ) { . let macros = macros.push(MacroState { binders, ops: ops.into() }); . // Accumulates the stacks the operators of each state until (and including when) the . // meta-variable is found. The innermost stack is first. . let mut acc: SmallVec<[&SmallVec<[KleeneToken; 1]>; 1]> = SmallVec::new(); . for state in ¯os { . acc.push(&state.ops); 2,040 ( 0.00%) if let Some(binder) = state.binders.get(&name) { . // This variable concatenates the stack of operators from the RHS of the LHS where the . // meta-variable was defined to where it is used (in possibly nested macros). The . // outermost operator is first. . let mut occurrence_ops: SmallVec<[KleeneToken; 2]> = SmallVec::new(); . // We need to iterate from the end to start with outermost stack. 1,224 ( 0.00%) for ops in acc.iter().rev() { 408 ( 0.00%) occurrence_ops.extend_from_slice(ops); . } . ops_is_prefix(sess, node_id, span, name, &binder.ops, &occurrence_ops); . return; . } . } . buffer_lint(sess, span.into(), node_id, &format!("unknown macro variable `{}`", name)); . } . -- line 580 ---------------------------------------- -- line 599 ---------------------------------------- . fn ops_is_prefix( . sess: &ParseSess, . node_id: NodeId, . span: Span, . name: MacroRulesNormalizedIdent, . binder_ops: &[KleeneToken], . occurrence_ops: &[KleeneToken], . ) { 1,632 ( 0.00%) for (i, binder) in binder_ops.iter().enumerate() { 8 ( 0.00%) if i >= occurrence_ops.len() { . let mut span = MultiSpan::from_span(span); . span.push_span_label(binder.span, "expected repetition".into()); . let message = &format!("variable '{}' is still repeating at this depth", name); . buffer_lint(sess, span, node_id, message); . return; . } . let occurrence = &occurrence_ops[i]; 12 ( 0.00%) if occurrence.op != binder.op { . let mut span = MultiSpan::from_span(span); . span.push_span_label(binder.span, "expected repetition".into()); . span.push_span_label(occurrence.span, "conflicting repetition".into()); . let message = "meta-variable repeats with different Kleene operator"; . buffer_lint(sess, span, node_id, message); . return; . } . } -- line 624 ---------------------------------------- 57,185 ( 0.03%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/rustc_entry.rs -------------------------------------------------------------------------------- Ir -- line 26 ---------------------------------------- . /// } . /// . /// assert_eq!(letters[&'s'], 2); . /// assert_eq!(letters[&'t'], 3); . /// assert_eq!(letters[&'u'], 1); . /// assert_eq!(letters.get(&'y'), None); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 344,956 ( 0.17%) pub fn rustc_entry(&mut self, key: K) -> RustcEntry<'_, K, V, A> { . let hash = make_insert_hash(&self.hash_builder, &key); 134 ( 0.00%) if let Some(elem) = self.table.find(hash, |q| q.0.eq(&key)) { 36,507 ( 0.02%) RustcEntry::Occupied(RustcOccupiedEntry { 4,102 ( 0.00%) key: Some(key), . elem, . table: &mut self.table, . }) . } else { . // Ideally we would put this in VacantEntry::insert, but Entry is not . // generic over the BuildHasher and adding a generic parameter would be . // a breaking change. . self.reserve(1); . 92,439 ( 0.05%) RustcEntry::Vacant(RustcVacantEntry { . hash, 5,811 ( 0.00%) key, . table: &mut self.table, . }) . } 282,398 ( 0.14%) } . } . . /// A view into a single entry in a map, which may either be vacant or occupied. . /// . /// This `enum` is constructed from the [`entry`] method on [`HashMap`]. . /// . /// [`HashMap`]: struct.HashMap.html . /// [`entry`]: struct.HashMap.html#method.rustc_entry -- line 62 ---------------------------------------- -- line 405 ---------------------------------------- . /// if let RustcEntry::Occupied(o) = map.rustc_entry("poneyland") { . /// *o.into_mut() += 10; . /// } . /// . /// assert_eq!(map["poneyland"], 22); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] . pub fn into_mut(self) -> &'a mut V { 958 ( 0.00%) unsafe { &mut self.elem.as_mut().1 } . } . . /// Sets the value of the entry, and returns the entry's old value. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; -- line 421 ---------------------------------------- -- line 568 ---------------------------------------- . /// let mut map: HashMap<&str, u32> = HashMap::new(); . /// . /// if let RustcEntry::Vacant(o) = map.rustc_entry("poneyland") { . /// o.insert(37); . /// } . /// assert_eq!(map["poneyland"], 37); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 996 ( 0.00%) pub fn insert(self, value: V) -> &'a mut V { . unsafe { 6,091 ( 0.00%) let bucket = self.table.insert_no_grow(self.hash, (self.key, value)); 464 ( 0.00%) &mut bucket.as_mut().1 . } 1,350 ( 0.00%) } . . /// Sets the value of the entry with the RustcVacantEntry's key, . /// and returns a RustcOccupiedEntry. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; -- line 589 ---------------------------------------- 78,732 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/span_encoding.rs -------------------------------------------------------------------------------- Ir -- line 55 ---------------------------------------- . /// `ctxt` values depend partly on the crate size and partly on the form of . /// the code. No crates in `rustc-perf` need more than 15 bits for `ctxt`, . /// but larger crates might need more than 16 bits. . /// . /// In order to reliably use parented spans in incremental compilation, . /// the dependency to the parent definition's span. This is performed . /// using the callback `SPAN_TRACK` to access the query engine. . /// 68,935 ( 0.03%) #[derive(Clone, Copy, Eq, PartialEq, Hash)] . // FIXME(@lcnr): Enable this attribute once the bootstrap . // compiler knows of `rustc_pass_by_value`. . // . // Right now, this lint would only trigger when compiling the . // stage 2 compiler, which is fairly annoying as there are . // a lot of places using `&Span` right now. After the next bootstrap bump, . // the lint will already trigger when using stage 1, which is a lot less annoying. . // . // #[cfg_attr(not(bootstrap), rustc_pass_by_value)] . pub struct Span { 183 ( 0.00%) base_or_index: u32, 7 ( 0.00%) len_or_tag: u16, 137 ( 0.00%) ctxt_or_zero: u16, . } . . const LEN_TAG: u16 = 0b1000_0000_0000_0000; . const MAX_LEN: u32 = 0b0111_1111_1111_1111; . const MAX_CTXT: u32 = 0b1111_1111_1111_1111; . . /// Dummy span, both position and length are zero, syntax context is zero as well. . pub const DUMMY_SP: Span = Span { base_or_index: 0, len_or_tag: 0, ctxt_or_zero: 0 }; -- line 84 ---------------------------------------- -- line 86 ---------------------------------------- . impl Span { . #[inline] . pub fn new( . mut lo: BytePos, . mut hi: BytePos, . ctxt: SyntaxContext, . parent: Option, . ) -> Self { 32,109 ( 0.02%) if lo > hi { . std::mem::swap(&mut lo, &mut hi); . } . 64,218 ( 0.03%) let (base, len, ctxt2) = (lo.0, hi.0 - lo.0, ctxt.as_u32()); . 203,367 ( 0.10%) if len <= MAX_LEN && ctxt2 <= MAX_CTXT && parent.is_none() { . // Inline format. . Span { base_or_index: base, len_or_tag: len as u16, ctxt_or_zero: ctxt2 as u16 } . } else { . // Interned format. . let index = 175 ( 0.00%) with_span_interner(|interner| interner.intern(&SpanData { lo, hi, ctxt, parent })); . Span { base_or_index: index, len_or_tag: LEN_TAG, ctxt_or_zero: 0 } . } 82,868 ( 0.04%) } . . #[inline] . pub fn data(self) -> SpanData { . let data = self.data_untracked(); 34 ( 0.00%) if let Some(parent) = data.parent { . (*SPAN_TRACK)(parent); . } . data . } . . /// Internal function to translate between an encoded span and the expanded representation. . /// This function must not be used outside the incremental engine. . #[inline] . pub fn data_untracked(self) -> SpanData { 319,653 ( 0.16%) if self.len_or_tag != LEN_TAG { . // Inline format. . debug_assert!(self.len_or_tag as u32 <= MAX_LEN); . SpanData { . lo: BytePos(self.base_or_index), 312,491 ( 0.15%) hi: BytePos(self.base_or_index + self.len_or_tag as u32), . ctxt: SyntaxContext::from_u32(self.ctxt_or_zero as u32), . parent: None, . } . } else { . // Interned format. . debug_assert!(self.ctxt_or_zero == 0); 32 ( 0.00%) let index = self.base_or_index; 141 ( 0.00%) with_span_interner(|interner| interner.spans[index as usize]) . } 222,481 ( 0.11%) } . } . 4 ( 0.00%) #[derive(Default)] . pub struct SpanInterner { . spans: FxIndexSet, . } . . impl SpanInterner { 33 ( 0.00%) fn intern(&mut self, span_data: &SpanData) -> u32 { 44 ( 0.00%) let (index, _) = self.spans.insert_full(*span_data); . index as u32 44 ( 0.00%) } . } . . // If an interner exists, return it. Otherwise, prepare a fresh one. . #[inline] . fn with_span_interner T>(f: F) -> T { . crate::with_session_globals(|session_globals| f(&mut *session_globals.span_interner.lock())) . } 268,712 ( 0.13%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/cmp.rs -------------------------------------------------------------------------------- Ir -- line 223 ---------------------------------------- . fn eq(&self, other: &Rhs) -> bool; . . /// This method tests for `!=`. . #[inline] . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[default_method_body_is_const] . fn ne(&self, other: &Rhs) -> bool { 1,870 ( 0.00%) !self.eq(other) . } . } . . /// Derive macro generating an impl of the trait `PartialEq`. . #[rustc_builtin_macro] . #[stable(feature = "builtin_macro_prelude", since = "1.38.0")] . #[allow_internal_unstable(core_intrinsics, structural_match)] . pub macro PartialEq($item:item) { -- line 239 ---------------------------------------- -- line 328 ---------------------------------------- . /// assert_eq!(Ordering::Less, result); . /// . /// let result = 1.cmp(&1); . /// assert_eq!(Ordering::Equal, result); . /// . /// let result = 2.cmp(&1); . /// assert_eq!(Ordering::Greater, result); . /// ``` 14 ( 0.00%) #[derive(Clone, Copy, PartialEq, Debug, Hash)] . #[stable(feature = "rust1", since = "1.0.0")] . #[repr(i8)] . pub enum Ordering { . /// An ordering where a compared value is less than another. . #[stable(feature = "rust1", since = "1.0.0")] . Less = -1, . /// An ordering where a compared value is equal to another. . #[stable(feature = "rust1", since = "1.0.0")] -- line 344 ---------------------------------------- -- line 569 ---------------------------------------- . /// let result = x.0.cmp(&y.0).then_with(|| x.1.cmp(&y.1)).then_with(|| x.2.cmp(&y.2)); . /// . /// assert_eq!(result, Ordering::Less); . /// ``` . #[inline] . #[must_use] . #[stable(feature = "ordering_chaining", since = "1.17.0")] . pub fn then_with Ordering>(self, f: F) -> Ordering { 1 ( 0.00%) match self { . Equal => f(), . _ => self, . } . } . } . . /// A helper struct for reverse ordering. . /// -- line 585 ---------------------------------------- -- line 792 ---------------------------------------- . /// ``` . #[stable(feature = "ord_max_min", since = "1.21.0")] . #[inline] . #[must_use] . fn max(self, other: Self) -> Self . where . Self: Sized, . { 3,696 ( 0.00%) max_by(self, other, Ord::cmp) . } . . /// Compares and returns the minimum of two values. . /// . /// Returns the first argument if the comparison determines them to be equal. . /// . /// # Examples . /// -- line 808 ---------------------------------------- -- line 812 ---------------------------------------- . /// ``` . #[stable(feature = "ord_max_min", since = "1.21.0")] . #[inline] . #[must_use] . fn min(self, other: Self) -> Self . where . Self: Sized, . { 394 ( 0.00%) min_by(self, other, Ord::cmp) . } . . /// Restrict a value to a certain interval. . /// . /// Returns `max` if `self` is greater than `max`, and `min` if `self` is . /// less than `min`. Otherwise this returns `self`. . /// . /// # Panics -- line 828 ---------------------------------------- -- line 1097 ---------------------------------------- . /// let result = 2.0 < 1.0; . /// assert_eq!(result, false); . /// ``` . #[inline] . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[default_method_body_is_const] . fn lt(&self, other: &Rhs) -> bool { 18,244 ( 0.01%) matches!(self.partial_cmp(other), Some(Less)) . } . . /// This method tests less than or equal to (for `self` and `other`) and is used by the `<=` . /// operator. . /// . /// # Examples . /// . /// ``` -- line 1113 ---------------------------------------- -- line 1121 ---------------------------------------- . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[default_method_body_is_const] . fn le(&self, other: &Rhs) -> bool { . // Pattern `Some(Less | Eq)` optimizes worse than negating `None | Some(Greater)`. . // FIXME: The root cause was fixed upstream in LLVM with: . // https://github.com/llvm/llvm-project/commit/9bad7de9a3fb844f1ca2965f35d0c2a3d1e11775 . // Revert this workaround once support for LLVM 12 gets dropped. 116,471 ( 0.06%) !matches!(self.partial_cmp(other), None | Some(Greater)) . } . . /// This method tests greater than (for `self` and `other`) and is used by the `>` operator. . /// . /// # Examples . /// . /// ``` . /// let result = 1.0 > 2.0; -- line 1137 ---------------------------------------- -- line 1140 ---------------------------------------- . /// let result = 2.0 > 2.0; . /// assert_eq!(result, false); . /// ``` . #[inline] . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[default_method_body_is_const] . fn gt(&self, other: &Rhs) -> bool { 62,964 ( 0.03%) matches!(self.partial_cmp(other), Some(Greater)) . } . . /// This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` . /// operator. . /// . /// # Examples . /// . /// ``` -- line 1156 ---------------------------------------- -- line 1160 ---------------------------------------- . /// let result = 2.0 >= 2.0; . /// assert_eq!(result, true); . /// ``` . #[inline] . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[default_method_body_is_const] . fn ge(&self, other: &Rhs) -> bool { 1 ( 0.00%) matches!(self.partial_cmp(other), Some(Greater | Equal)) . } . } . . /// Derive macro generating an impl of the trait `PartialOrd`. . #[rustc_builtin_macro] . #[stable(feature = "builtin_macro_prelude", since = "1.38.0")] . #[allow_internal_unstable(core_intrinsics)] . pub macro PartialOrd($item:item) { -- line 1176 ---------------------------------------- -- line 1210 ---------------------------------------- . /// . /// assert_eq!(cmp::min_by(-2, 1, |x: &i32, y: &i32| x.abs().cmp(&y.abs())), 1); . /// assert_eq!(cmp::min_by(-2, 2, |x: &i32, y: &i32| x.abs().cmp(&y.abs())), -2); . /// ``` . #[inline] . #[must_use] . #[stable(feature = "cmp_min_max_by", since = "1.53.0")] . pub fn min_by Ordering>(v1: T, v2: T, compare: F) -> T { 11,818 ( 0.01%) match compare(&v1, &v2) { . Ordering::Less | Ordering::Equal => v1, . Ordering::Greater => v2, . } 2 ( 0.00%) } . . /// Returns the element that gives the minimum value from the specified function. . /// . /// Returns the first argument if the comparison determines them to be equal. . /// . /// # Examples . /// . /// ``` -- line 1230 ---------------------------------------- -- line 1231 ---------------------------------------- . /// use std::cmp; . /// . /// assert_eq!(cmp::min_by_key(-2, 1, |x: &i32| x.abs()), 1); . /// assert_eq!(cmp::min_by_key(-2, 2, |x: &i32| x.abs()), -2); . /// ``` . #[inline] . #[must_use] . #[stable(feature = "cmp_min_max_by", since = "1.53.0")] 12 ( 0.00%) pub fn min_by_key K, K: Ord>(v1: T, v2: T, mut f: F) -> T { 8 ( 0.00%) min_by(v1, v2, |v1, v2| f(v1).cmp(&f(v2))) 8 ( 0.00%) } . . /// Compares and returns the maximum of two values. . /// . /// Returns the second argument if the comparison determines them to be equal. . /// . /// Internally uses an alias to [`Ord::max`]. . /// . /// # Examples -- line 1249 ---------------------------------------- -- line 1273 ---------------------------------------- . /// . /// assert_eq!(cmp::max_by(-2, 1, |x: &i32, y: &i32| x.abs().cmp(&y.abs())), -2); . /// assert_eq!(cmp::max_by(-2, 2, |x: &i32, y: &i32| x.abs().cmp(&y.abs())), 2); . /// ``` . #[inline] . #[must_use] . #[stable(feature = "cmp_min_max_by", since = "1.53.0")] . pub fn max_by Ordering>(v1: T, v2: T, compare: F) -> T { 45,264 ( 0.02%) match compare(&v1, &v2) { 135 ( 0.00%) Ordering::Less | Ordering::Equal => v2, . Ordering::Greater => v1, . } . } . . /// Returns the element that gives the maximum value from the specified function. . /// . /// Returns the second argument if the comparison determines them to be equal. . /// -- line 1290 ---------------------------------------- -- line 1308 ---------------------------------------- . use crate::cmp::Ordering::{self, Equal, Greater, Less}; . use crate::hint::unreachable_unchecked; . . macro_rules! partial_eq_impl { . ($($t:ty)*) => ($( . #[stable(feature = "rust1", since = "1.0.0")] . impl PartialEq for $t { . #[inline] 502 ( 0.00%) fn eq(&self, other: &$t) -> bool { (*self) == (*other) } . #[inline] 59,412 ( 0.03%) fn ne(&self, other: &$t) -> bool { (*self) != (*other) } . } . )*) . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl PartialEq for () { . #[inline] . fn eq(&self, _other: &()) -> bool { -- line 1326 ---------------------------------------- -- line 1392 ---------------------------------------- . ($($t:ty)*) => ($( . #[stable(feature = "rust1", since = "1.0.0")] . impl PartialOrd for $t { . #[inline] . fn partial_cmp(&self, other: &$t) -> Option { . Some(self.cmp(other)) . } . #[inline] 912,802 ( 0.45%) fn lt(&self, other: &$t) -> bool { (*self) < (*other) } . #[inline] 3,260 ( 0.00%) fn le(&self, other: &$t) -> bool { (*self) <= (*other) } . #[inline] . fn ge(&self, other: &$t) -> bool { (*self) >= (*other) } . #[inline] . fn gt(&self, other: &$t) -> bool { (*self) > (*other) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Ord for $t { . #[inline] . fn cmp(&self, other: &$t) -> Ordering { . // The order here is important to generate more optimal assembly. . // See for more info. 211,691 ( 0.10%) if *self < *other { Less } . else if *self == *other { Equal } . else { Greater } . } . } . )*) . } . . #[stable(feature = "rust1", since = "1.0.0")] -- line 1423 ---------------------------------------- -- line 1430 ---------------------------------------- . . #[stable(feature = "rust1", since = "1.0.0")] . impl Ord for bool { . #[inline] . fn cmp(&self, other: &bool) -> Ordering { . // Casting to i8's and converting the difference to an Ordering generates . // more optimal assembly. . // See for more info. 984 ( 0.00%) match (*self as i8) - (*other as i8) { . -1 => Less, . 0 => Equal, . 1 => Greater, . // SAFETY: bool as i8 returns 0 or 1, so the difference can't be anything else . _ => unsafe { unreachable_unchecked() }, . } . } . } -- line 1446 ---------------------------------------- -- line 1474 ---------------------------------------- . // & pointers . . #[stable(feature = "rust1", since = "1.0.0")] . impl PartialEq<&B> for &A . where . A: PartialEq, . { . #[inline] 378 ( 0.00%) fn eq(&self, other: &&B) -> bool { 49,825 ( 0.02%) PartialEq::eq(*self, *other) 7,022 ( 0.00%) } . #[inline] . fn ne(&self, other: &&B) -> bool { 69 ( 0.00%) PartialEq::ne(*self, *other) 2,167 ( 0.00%) } . } . #[stable(feature = "rust1", since = "1.0.0")] . impl PartialOrd<&B> for &A . where . A: PartialOrd, . { . #[inline] . fn partial_cmp(&self, other: &&B) -> Option { -- line 1496 ---------------------------------------- -- line 1516 ---------------------------------------- . #[stable(feature = "rust1", since = "1.0.0")] . impl Ord for &A . where . A: Ord, . { . #[inline] . fn cmp(&self, other: &Self) -> Ordering { . Ord::cmp(*self, *other) 630 ( 0.00%) } . } . #[stable(feature = "rust1", since = "1.0.0")] . impl Eq for &A where A: Eq {} . . // &mut pointers . . #[stable(feature = "rust1", since = "1.0.0")] . impl PartialEq<&mut B> for &mut A -- line 1532 ---------------------------------------- 173,705 ( 0.08%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/analyze_source_file.rs -------------------------------------------------------------------------------- Ir -- line 4 ---------------------------------------- . #[cfg(test)] . mod tests; . . /// Finds all newlines, multi-byte characters, and non-narrow characters in a . /// SourceFile. . /// . /// This function will use an SSE2 enhanced implementation if hardware support . /// is detected at runtime. 44 ( 0.00%) pub fn analyze_source_file( . src: &str, . source_file_start_pos: BytePos, . ) -> (Vec, Vec, Vec) { 4 ( 0.00%) let mut lines = vec![source_file_start_pos]; . let mut multi_byte_chars = vec![]; . let mut non_narrow_chars = vec![]; . . // Calls the right implementation, depending on hardware support available. . analyze_source_file_dispatch( . src, . source_file_start_pos, . &mut lines, . &mut multi_byte_chars, . &mut non_narrow_chars, . ); . . // The code above optimistically registers a new line *after* each \n . // it encounters. If that point is already outside the source_file, remove . // it again. 4 ( 0.00%) if let Some(&last_line_start) = lines.last() { . let source_file_end = source_file_start_pos + BytePos::from_usize(src.len()); 4 ( 0.00%) assert!(source_file_end >= last_line_start); 4 ( 0.00%) if last_line_start == source_file_end { . lines.pop(); . } . } . 52 ( 0.00%) (lines, multi_byte_chars, non_narrow_chars) 32 ( 0.00%) } . . cfg_if::cfg_if! { . if #[cfg(all(any(target_arch = "x86", target_arch = "x86_64")))] { . fn analyze_source_file_dispatch(src: &str, . source_file_start_pos: BytePos, . lines: &mut Vec, . multi_byte_chars: &mut Vec, . non_narrow_chars: &mut Vec) { -- line 49 ---------------------------------------- -- line 101 ---------------------------------------- . . // For character in the chunk, see if its byte value is < 0, which . // indicates that it's part of a UTF-8 char. . let multibyte_test = _mm_cmplt_epi8(chunk, _mm_set1_epi8(0)); . // Create a bit mask from the comparison results. . let multibyte_mask = _mm_movemask_epi8(multibyte_test); . . // If the bit mask is all zero, we only have ASCII chars here: 6,150 ( 0.00%) if multibyte_mask == 0 { 2,752 ( 0.00%) assert!(intra_chunk_offset == 0); . . // Check if there are any control characters in the chunk. All . // control characters that we can encounter at this point have a . // byte value less than 32 or ... . let control_char_test0 = _mm_cmplt_epi8(chunk, _mm_set1_epi8(32)); . let control_char_mask0 = _mm_movemask_epi8(control_char_test0); . . // ... it's the ASCII 'DEL' character with a value of 127. . let control_char_test1 = _mm_cmpeq_epi8(chunk, _mm_set1_epi8(127)); . let control_char_mask1 = _mm_movemask_epi8(control_char_test1); . 6,146 ( 0.00%) let control_char_mask = control_char_mask0 | control_char_mask1; . 6,146 ( 0.00%) if control_char_mask != 0 { . // Check for newlines in the chunk . let newlines_test = _mm_cmpeq_epi8(chunk, _mm_set1_epi8(b'\n' as i8)); . let newlines_mask = _mm_movemask_epi8(newlines_test); . 3,112 ( 0.00%) if control_char_mask == newlines_mask { . // All control characters are newlines, record them . let mut newlines_mask = 0xFFFF0000 | newlines_mask as u32; . let output_offset = output_offset + 555 ( 0.00%) BytePos::from_usize(chunk_index * CHUNK_SIZE + 1); . . loop { . let index = newlines_mask.trailing_zeros(); . 854 ( 0.00%) if index >= CHUNK_SIZE as u32 { . // We have arrived at the end of the chunk. . break . } . . lines.push(BytePos(index) + output_offset); . . // Clear the bit, so we can find the next one. 726 ( 0.00%) newlines_mask &= (!1) << index; . } . . // We are done for this chunk. All control characters were . // newlines and we took care of those. . continue . } else { . // Some of the control characters are not newlines, . // fall through to the slow path below. -- line 154 ---------------------------------------- -- line 156 ---------------------------------------- . } else { . // No control characters, nothing to record for this chunk . continue . } . } . . // The slow path. . // There are control chars in here, fallback to generic decoding. 8,238 ( 0.00%) let scan_start = chunk_index * CHUNK_SIZE + intra_chunk_offset; 8,238 ( 0.00%) intra_chunk_offset = analyze_source_file_generic( . &src[scan_start .. ], 4,119 ( 0.00%) CHUNK_SIZE - intra_chunk_offset, . BytePos::from_usize(scan_start) + output_offset, . lines, . multi_byte_chars, . non_narrow_chars . ); . } . . // There might still be a tail left to analyze 16 ( 0.00%) let tail_start = chunk_count * CHUNK_SIZE + intra_chunk_offset; 12 ( 0.00%) if tail_start < src.len() { 15 ( 0.00%) analyze_source_file_generic(&src[tail_start as usize ..], . src.len() - tail_start, . output_offset + BytePos::from_usize(tail_start), . lines, . multi_byte_chars, . non_narrow_chars); . } . } . } else { -- line 186 ---------------------------------------- -- line 199 ---------------------------------------- . non_narrow_chars); . } . } . } . . // `scan_len` determines the number of bytes in `src` to scan. Note that the . // function can read past `scan_len` if a multi-byte character start within the . // range but extends past it. The overflow is returned by the function. 11,008 ( 0.01%) fn analyze_source_file_generic( . src: &str, . scan_len: usize, . output_offset: BytePos, . lines: &mut Vec, . multi_byte_chars: &mut Vec, . non_narrow_chars: &mut Vec, . ) -> usize { 2,752 ( 0.00%) assert!(src.len() >= scan_len); . let mut i = 0; . let src_bytes = src.as_bytes(); . 48,100 ( 0.02%) while i < scan_len { . let byte = unsafe { . // We verified that i < scan_len <= src.len() 43,972 ( 0.02%) *src_bytes.get_unchecked(i as usize) . }; . . // How much to advance in order to get to the next UTF-8 char in the . // string. . let mut char_len = 1; . 21,986 ( 0.01%) if byte < 32 { . // This is an ASCII control character, it could be one of the cases . // that are interesting to us. . . let pos = BytePos::from_usize(i) + output_offset; . 16,994 ( 0.01%) match byte { . b'\n' => { . lines.push(pos + BytePos(1)); . } . b'\t' => { . non_narrow_chars.push(NonNarrowChar::Tab(pos)); . } . _ => { . non_narrow_chars.push(NonNarrowChar::ZeroWidth(pos)); . } . } 30,250 ( 0.01%) } else if byte >= 127 { . // The slow path: . // This is either ASCII control character "DEL" or the beginning of . // a multibyte char. Just decode to `char`. . let c = (&src[i..]).chars().next().unwrap(); . char_len = c.len_utf8(); . . let pos = BytePos::from_usize(i) + output_offset; . 4 ( 0.00%) if char_len > 1 { . assert!((2..=4).contains(&char_len)); . let mbc = MultiByteChar { pos, bytes: char_len as u8 }; . multi_byte_chars.push(mbc); . } . . // Assume control characters are zero width. . // FIXME: How can we decide between `width` and `width_cjk`? . let char_width = UnicodeWidthChar::width(c).unwrap_or(0); . 2 ( 0.00%) if char_width != 1 { . non_narrow_chars.push(NonNarrowChar::new(pos, char_width)); . } . } . 43,972 ( 0.02%) i += char_len; . } . 1,376 ( 0.00%) i - scan_len 12,384 ( 0.01%) } 76,263 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/indexmap-1.8.0/src/map/core/raw.rs -------------------------------------------------------------------------------- Ir -- line 30 ---------------------------------------- . bucket.write(i - offset); . } else if i >= start { . self.indices.erase(bucket); . } . } . } . } . 103,113 ( 0.05%) pub(crate) fn entry(&mut self, hash: HashValue, key: K) -> Entry<'_, K, V> . where . K: Eq, . { . let eq = equivalent(&key, &self.entries); 29,460 ( 0.01%) match self.indices.find(hash.get(), eq) { . // SAFETY: The entry is created with a live raw bucket, at the same time . // we have a &mut reference to the map, so it can not be modified further. 12,151 ( 0.01%) Some(raw_bucket) => Entry::Occupied(OccupiedEntry { . map: self, . raw_bucket, 5,412 ( 0.00%) key, . }), 48,974 ( 0.02%) None => Entry::Vacant(VacantEntry { . map: self, . hash, 7,194 ( 0.00%) key, . }), . } 79,140 ( 0.04%) } . . pub(super) fn indices_mut(&mut self) -> impl Iterator { . // SAFETY: we're not letting any of the buckets escape this function, . // only the item references that are appropriately bound to `&mut self`. . unsafe { self.indices.iter().map(|bucket| bucket.as_mut()) } . } . . /// Return the raw bucket for the given index -- line 65 ---------------------------------------- -- line 139 ---------------------------------------- . pub fn index(&self) -> usize { . // SAFETY: we have &mut map keep keeping the bucket stable . unsafe { self.raw_bucket.read() } . } . . /// Converts into a mutable reference to the entry's value in the map, . /// with a lifetime bound to the map itself. . pub fn into_mut(self) -> &'a mut V { 2,229 ( 0.00%) let index = self.index(); 6,687 ( 0.00%) &mut self.map.entries[index].value . } . . /// Remove and return the key, value pair stored in the map for this entry . /// . /// Like `Vec::swap_remove`, the pair is removed by swapping it with the . /// last element of the map and popping it off. **This perturbs . /// the position of what used to be the last element!** . /// -- line 156 ---------------------------------------- 82,071 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/tuple.rs -------------------------------------------------------------------------------- Ir -- line 10 ---------------------------------------- . $(($idx:tt) -> $T:ident)+ . } . )+) => { . $( . #[stable(feature = "rust1", since = "1.0.0")] . impl<$($T:PartialEq),+> PartialEq for ($($T,)+) where last_type!($($T,)+): ?Sized { . #[inline] . fn eq(&self, other: &($($T,)+)) -> bool { 3,012 ( 0.00%) $(self.$idx == other.$idx)&&+ . } . #[inline] . fn ne(&self, other: &($($T,)+)) -> bool { . $(self.$idx != other.$idx)||+ . } . } . . #[stable(feature = "rust1", since = "1.0.0")] -- line 26 ---------------------------------------- -- line 30 ---------------------------------------- . impl<$($T:PartialOrd + PartialEq),+> PartialOrd for ($($T,)+) . where last_type!($($T,)+): ?Sized { . #[inline] . fn partial_cmp(&self, other: &($($T,)+)) -> Option { . lexical_partial_cmp!($(self.$idx, other.$idx),+) . } . #[inline] . fn lt(&self, other: &($($T,)+)) -> bool { 368,654 ( 0.18%) lexical_ord!(lt, $(self.$idx, other.$idx),+) . } . #[inline] . fn le(&self, other: &($($T,)+)) -> bool { . lexical_ord!(le, $(self.$idx, other.$idx),+) . } . #[inline] . fn ge(&self, other: &($($T,)+)) -> bool { 1 ( 0.00%) lexical_ord!(ge, $(self.$idx, other.$idx),+) . } . #[inline] . fn gt(&self, other: &($($T,)+)) -> bool { . lexical_ord!(gt, $(self.$idx, other.$idx),+) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<$($T:Ord),+> Ord for ($($T,)+) where last_type!($($T,)+): ?Sized { . #[inline] . fn cmp(&self, other: &($($T,)+)) -> Ordering { 7,132 ( 0.00%) lexical_cmp!($(self.$idx, other.$idx),+) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<$($T:Default),+> Default for ($($T,)+) { . #[inline] . fn default() -> ($($T,)+) { 22 ( 0.00%) ($({ let x: $T = Default::default(); x},)+) . } . } . )+ . } . } . . // Constructs an expression that performs a lexical ordering using method $rel. . // The values are interleaved, so the macro invocation for -- line 74 ---------------------------------------- 15 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/sort.rs -------------------------------------------------------------------------------- Ir -- line 69 ---------------------------------------- . hole.dest = v.add(i); . } . // `hole` gets dropped and thus copies `tmp` into the remaining hole in `v`. . } . } . } . . /// Shifts the last element to the left until it encounters a smaller or equal element. 23 ( 0.00%) fn shift_tail(v: &mut [T], is_less: &mut F) . where . F: FnMut(&T, &T) -> bool, . { . let len = v.len(); . // SAFETY: The unsafe operations below involves indexing without a bound check (by offsetting a . // pointer) and copying memory (`ptr::copy_nonoverlapping`). . // . // a. Indexing: -- line 85 ---------------------------------------- -- line 91 ---------------------------------------- . // 2. They cannot overlap because we obtain pointers to difference indices of the slice. . // Namely, `i` and `i+1`. . // 3. If the slice is properly aligned, the elements are properly aligned. . // It is the caller's responsibility to make sure the slice is properly aligned. . // . // See comments below for further detail. . unsafe { . // If the last two elements are out-of-order... 20,550 ( 0.01%) if len >= 2 && is_less(v.get_unchecked(len - 1), v.get_unchecked(len - 2)) { . // Read the last element into a stack-allocated variable. If a following comparison . // operation panics, `hole` will get dropped and automatically write the element back . // into the slice. . let tmp = mem::ManuallyDrop::new(ptr::read(v.get_unchecked(len - 1))); . let v = v.as_mut_ptr(); . let mut hole = CopyOnDrop { src: &*tmp, dest: v.add(len - 2) }; . ptr::copy_nonoverlapping(v.add(len - 2), v.add(len - 1), 1); . . for i in (0..len - 2).rev() { 65,506 ( 0.03%) if !is_less(&*tmp, &*v.add(i)) { . break; . } . . // Move `i`-th element one place to the right, thus shifting the hole to the left. . ptr::copy_nonoverlapping(v.add(i), v.add(i + 1), 1); . hole.dest = v.add(i); . } . // `hole` gets dropped and thus copies `tmp` into the remaining hole in `v`. . } . } 46 ( 0.00%) } . . /// Partially sorts a slice by shifting several out-of-order elements around. . /// . /// Returns `true` if the slice is sorted at the end. This function is *O*(*n*) worst-case. . #[cold] 207 ( 0.00%) fn partial_insertion_sort(v: &mut [T], is_less: &mut F) -> bool . where . F: FnMut(&T, &T) -> bool, . { . // Maximum number of adjacent out-of-order pairs that will get shifted. . const MAX_STEPS: usize = 5; . // If the slice is shorter than this, don't shift any elements. . const SHORTEST_SHIFTING: usize = 50; . -- line 134 ---------------------------------------- -- line 135 ---------------------------------------- . let len = v.len(); . let mut i = 1; . . for _ in 0..MAX_STEPS { . // SAFETY: We already explicitly did the bound checking with `i < len`. . // All our subsequent indexing is only in the range `0 <= index < len` . unsafe { . // Find the next pair of adjacent out-of-order elements. 382 ( 0.00%) while i < len && !is_less(v.get_unchecked(i), v.get_unchecked(i - 1)) { 19 ( 0.00%) i += 1; . } . } . . // Are we done? 69 ( 0.00%) if i == len { . return true; . } . . // Don't shift elements on short arrays, that has a performance cost. . if len < SHORTEST_SHIFTING { . return false; . } . -- line 157 ---------------------------------------- -- line 161 ---------------------------------------- . // Shift the smaller element to the left. . shift_tail(&mut v[..i], is_less); . // Shift the greater element to the right. . shift_head(&mut v[i..], is_less); . } . . // Didn't manage to sort the slice in the limited number of steps. . false 184 ( 0.00%) } . . /// Sorts a slice using insertion sort, which is *O*(*n*^2) worst-case. . fn insertion_sort(v: &mut [T], is_less: &mut F) . where . F: FnMut(&T, &T) -> bool, . { . for i in 1..v.len() { 69 ( 0.00%) shift_tail(&mut v[..i + 1], is_less); . } . } . . /// Sorts `v` using heapsort, which guarantees *O*(*n* \* log(*n*)) worst-case. . #[cold] . #[unstable(feature = "sort_internals", reason = "internal to sort module", issue = "none")] . pub fn heapsort(v: &mut [T], mut is_less: F) . where -- line 185 ---------------------------------------- -- line 264 ---------------------------------------- . let mut offsets_r = [MaybeUninit::::uninit(); BLOCK]; . . // FIXME: When we get VLAs, try creating one array of length `min(v.len(), 2 * BLOCK)` rather . // than two fixed-size arrays of length `BLOCK`. VLAs might be more cache-efficient. . . // Returns the number of elements between pointers `l` (inclusive) and `r` (exclusive). . fn width(l: *mut T, r: *mut T) -> usize { . assert!(mem::size_of::() > 0); 6,255 ( 0.00%) (r as usize - l as usize) / mem::size_of::() . } . . loop { . // We are done with partitioning block-by-block when `l` and `r` get very close. Then we do . // some patch-up work in order to partition the remaining elements in between. 1,407 ( 0.00%) let is_done = width(l, r) <= 2 * BLOCK; . 471 ( 0.00%) if is_done { . // Number of remaining elements (still not compared to the pivot). . let mut rem = width(l, r); 1,751 ( 0.00%) if start_l < end_l || start_r < end_r { 30 ( 0.00%) rem -= BLOCK; . } . . // Adjust block sizes so that the left and right block don't overlap, but get perfectly . // aligned to cover the whole remaining gap. 30 ( 0.00%) if start_l < end_l { . block_r = rem; . } else if start_r < end_r { . block_l = rem; . } else { . // There were the same number of elements to switch on both blocks during the last . // iteration, so there are no remaining elements on either block. Cover the remaining . // items with roughly equally-sized blocks. 838 ( 0.00%) block_l = rem / 2; 838 ( 0.00%) block_r = rem - block_l; . } . debug_assert!(block_l <= BLOCK && block_r <= BLOCK); . debug_assert!(width(l, r) == block_l + block_r); . } . 1,407 ( 0.00%) if start_l == end_l { . // Trace `block_l` elements from the left side. . start_l = MaybeUninit::slice_as_mut_ptr(&mut offsets_l); . end_l = start_l; . let mut elem = l; . . for i in 0..block_l { . // SAFETY: The unsafety operations below involve the usage of the `offset`. . // According to the conditions required by the function, we satisfy them because: -- line 312 ---------------------------------------- -- line 315 ---------------------------------------- . // Casting a `bool` will never overflow `isize`. . // 3. We have guaranteed that `block_l` will be `<= BLOCK`. . // Plus, `end_l` was initially set to the begin pointer of `offsets_` which was declared on the stack. . // Thus, we know that even in the worst case (all invocations of `is_less` returns false) we will only be at most 1 byte pass the end. . // Another unsafety operation here is dereferencing `elem`. . // However, `elem` was initially the begin pointer to the slice which is always valid. . unsafe { . // Branchless comparison. 14,553 ( 0.01%) *end_l = i as u8; 14,234 ( 0.01%) end_l = end_l.offset(!is_less(&*elem, pivot) as isize); . elem = elem.offset(1); . } . } . } . 942 ( 0.00%) if start_r == end_r { . // Trace `block_r` elements from the right side. . start_r = MaybeUninit::slice_as_mut_ptr(&mut offsets_r); . end_r = start_r; . let mut elem = r; . . for i in 0..block_r { . // SAFETY: The unsafety operations below involve the usage of the `offset`. . // According to the conditions required by the function, we satisfy them because: -- line 338 ---------------------------------------- -- line 343 ---------------------------------------- . // Plus, `end_r` was initially set to the begin pointer of `offsets_` which was declared on the stack. . // Thus, we know that even in the worst case (all invocations of `is_less` returns true) we will only be at most 1 byte pass the end. . // Another unsafety operation here is dereferencing `elem`. . // However, `elem` was initially `1 * sizeof(T)` past the end and we decrement it by `1 * sizeof(T)` before accessing it. . // Plus, `block_r` was asserted to be less than `BLOCK` and `elem` will therefore at most be pointing to the beginning of the slice. . unsafe { . // Branchless comparison. . elem = elem.offset(-1); 14,120 ( 0.01%) *end_r = i as u8; 14,017 ( 0.01%) end_r = end_r.offset(is_less(&*elem, pivot) as isize); . } . } . } . . // Number of out-of-order elements to swap between the left and right side. . let count = cmp::min(width(start_l, end_l), width(start_r, end_r)); . 942 ( 0.00%) if count > 0 { . macro_rules! left { . () => { . l.offset(*start_l as isize) . }; . } . macro_rules! right { . () => { . r.offset(-(*start_r as isize) - 1) -- line 368 ---------------------------------------- -- line 384 ---------------------------------------- . // The calls to `start_l.offset` are valid because there are at most `count-1` of them, . // plus the final one at the end of the unsafe block, where `count` is the minimum number . // of collected offsets in `offsets_l` and `offsets_r`, so there is no risk of there not . // being enough elements. The same reasoning applies to the calls to `start_r.offset`. . // . // The calls to `copy_nonoverlapping` are safe because `left!` and `right!` are guaranteed . // not to overlap, and are valid because of the reasoning above. . unsafe { 471 ( 0.00%) let tmp = ptr::read(left!()); 1,418 ( 0.00%) ptr::copy_nonoverlapping(right!(), left!(), 1); . . for _ in 1..count { . start_l = start_l.offset(1); 11,757 ( 0.01%) ptr::copy_nonoverlapping(left!(), right!(), 1); . start_r = start_r.offset(1); 14,316 ( 0.01%) ptr::copy_nonoverlapping(right!(), left!(), 1); . } . . ptr::copy_nonoverlapping(&tmp, right!(), 1); . mem::forget(tmp); . start_l = start_l.offset(1); . start_r = start_r.offset(1); . } . } . 1,413 ( 0.00%) if start_l == end_l { . // All out-of-order elements in the left block were moved. Move to the next block. . . // block-width-guarantee . // SAFETY: if `!is_done` then the slice width is guaranteed to be at least `2*BLOCK` wide. There . // are at most `BLOCK` elements in `offsets_l` because of its size, so the `offset` operation is . // safe. Otherwise, the debug assertions in the `is_done` case guarantee that . // `width(l, r) == block_l + block_r`, namely, that the block sizes have been adjusted to account . // for the smaller number of remaining elements. . l = unsafe { l.offset(block_l as isize) }; . } . 1,407 ( 0.00%) if start_r == end_r { . // All out-of-order elements in the right block were moved. Move to the previous block. . . // SAFETY: Same argument as [block-width-guarantee]. Either this is a full block `2*BLOCK`-wide, . // or `block_r` has been adjusted for the last handful of elements. 699 ( 0.00%) r = unsafe { r.offset(-(block_r as isize)) }; . } . 471 ( 0.00%) if is_done { . break; . } . } . . // All that remains now is at most one block (either the left or the right) with out-of-order . // elements that need to be moved. Such remaining elements can be simply shifted to the end . // within their block. . 868 ( 0.00%) if start_l < end_l { . // The left block remains. . // Move its remaining out-of-order elements to the far right. . debug_assert_eq!(width(l, r), block_l); 3,016 ( 0.00%) while start_l < end_l { . // remaining-elements-safety . // SAFETY: while the loop condition holds there are still elements in `offsets_l`, so it . // is safe to point `end_l` to the previous element. . // . // The `ptr::swap` is safe if both its arguments are valid for reads and writes: . // - Per the debug assert above, the distance between `l` and `r` is `block_l` . // elements, so there can be at most `block_l` remaining offsets between `start_l` . // and `end_l`. This means `r` will be moved at most `block_l` steps back, which . // makes the `r.offset` calls valid (at that point `l == r`). . // - `offsets_l` contains valid offsets into `v` collected during the partitioning of . // the last block, so the `l.offset` calls are valid. . unsafe { . end_l = end_l.offset(-1); 1,517 ( 0.00%) ptr::swap(l.offset(*end_l as isize), r.offset(-1)); . r = r.offset(-1); . } . } . width(v.as_mut_ptr(), r) 498 ( 0.00%) } else if start_r < end_r { . // The right block remains. . // Move its remaining out-of-order elements to the far left. . debug_assert_eq!(width(l, r), block_r); 4,358 ( 0.00%) while start_r < end_r { . // SAFETY: See the reasoning in [remaining-elements-safety]. . unsafe { . end_r = end_r.offset(-1); 4,282 ( 0.00%) ptr::swap(l, r.offset(-(*end_r as isize) - 1)); . l = l.offset(1); . } . } . width(v.as_mut_ptr(), l) . } else { . // Nothing else to do, we're done. . width(v.as_mut_ptr(), l) . } -- line 477 ---------------------------------------- -- line 507 ---------------------------------------- . let mut r = v.len(); . . // SAFETY: The unsafety below involves indexing an array. . // For the first one: We already do the bounds checking here with `l < r`. . // For the second one: We initially have `l == 0` and `r == v.len()` and we checked that `l < r` at every indexing operation. . // From here we know that `r` must be at least `r == l` which was shown to be valid from the first one. . unsafe { . // Find the first element greater than or equal to the pivot. 12,814 ( 0.01%) while l < r && is_less(v.get_unchecked(l), pivot) { 2,988 ( 0.00%) l += 1; . } . . // Find the last element smaller that the pivot. 20,895 ( 0.01%) while l < r && !is_less(v.get_unchecked(r - 1), pivot) { . r -= 1; . } . } . 3,037 ( 0.00%) (l + partition_in_blocks(&mut v[l..r], pivot, is_less), l >= r) . . // `_pivot_guard` goes out of scope and writes the pivot (which is a stack-allocated . // variable) back into the slice where it originally was. This step is critical in ensuring . // safety! . }; . . // Place the pivot between the two partitions. . v.swap(0, mid); -- line 533 ---------------------------------------- -- line 592 ---------------------------------------- . . // `_pivot_guard` goes out of scope and writes the pivot (which is a stack-allocated variable) . // back into the slice where it originally was. This step is critical in ensuring safety! . } . . /// Scatters some elements around in an attempt to break patterns that might cause imbalanced . /// partitions in quicksort. . #[cold] 9 ( 0.00%) fn break_patterns(v: &mut [T]) { . let len = v.len(); . if len >= 8 { . // Pseudorandom number generator from the "Xorshift RNGs" paper by George Marsaglia. . let mut random = len as u32; . let mut gen_u32 = || { 162 ( 0.00%) random ^= random << 13; 162 ( 0.00%) random ^= random >> 17; 162 ( 0.00%) random ^= random << 5; . random . }; . let mut gen_usize = || { . if usize::BITS <= 32 { . gen_u32() as usize . } else { 54 ( 0.00%) (((gen_u32() as u64) << 32) | (gen_u32() as u64)) as usize . } . }; . . // Take random numbers modulo this number. . // The number fits into `usize` because `len` is not greater than `isize::MAX`. . let modulus = len.next_power_of_two(); . . // Some pivot candidates will be in the nearby of this index. Let's randomize them. 27 ( 0.00%) let pos = len / 4 * 2; . . for i in 0..3 { . // Generate a random number modulo `len`. However, in order to avoid costly operations . // we first take it modulo a power of two, and then decrease by `len` until it fits . // into the range `[0, len - 1]`. 54 ( 0.00%) let mut other = gen_usize() & (modulus - 1); . . // `other` is guaranteed to be less than `2 * len`. 72 ( 0.00%) if other >= len { . other -= len; . } . 9 ( 0.00%) v.swap(pos - 1 + i, other); . } . } 18 ( 0.00%) } . . /// Chooses a pivot in `v` and returns the index and `true` if the slice is likely already sorted. . /// . /// Elements in `v` might be reordered in the process. . fn choose_pivot(v: &mut [T], is_less: &mut F) -> (usize, bool) . where . F: FnMut(&T, &T) -> bool, . { -- line 648 ---------------------------------------- -- line 650 ---------------------------------------- . // Shorter slices use the simple median-of-three method. . const SHORTEST_MEDIAN_OF_MEDIANS: usize = 50; . // Maximum number of swaps that can be performed in this function. . const MAX_SWAPS: usize = 4 * 3; . . let len = v.len(); . . // Three indices near which we are going to choose a pivot. 874 ( 0.00%) let mut a = len / 4 * 1; 440 ( 0.00%) let mut b = len / 4 * 2; 440 ( 0.00%) let mut c = len / 4 * 3; . . // Counts the total number of swaps we are about to perform while sorting indices. 12 ( 0.00%) let mut swaps = 0; . . if len >= 8 { . // Swaps indices so that `v[a] <= v[b]`. . // SAFETY: `len >= 8` so there are at least two elements in the neighborhoods of . // `a`, `b` and `c`. This means the three calls to `sort_adjacent` result in . // corresponding calls to `sort3` with valid 3-item neighborhoods around each . // pointer, which in turn means the calls to `sort2` are done with valid . // references. Thus the `v.get_unchecked` calls are safe, as is the `ptr::swap` . // call. 31 ( 0.00%) let mut sort2 = |a: &mut usize, b: &mut usize| unsafe { 13,630 ( 0.01%) if is_less(v.get_unchecked(*b), v.get_unchecked(*a)) { . ptr::swap(a, b); 2,525 ( 0.00%) swaps += 1; . } . }; . . // Swaps indices so that `v[a] <= v[b] <= v[c]`. 53 ( 0.00%) let mut sort3 = |a: &mut usize, b: &mut usize, c: &mut usize| { 8 ( 0.00%) sort2(a, b); . sort2(b, c); . sort2(a, b); 48 ( 0.00%) }; . 868 ( 0.00%) if len >= SHORTEST_MEDIAN_OF_MEDIANS { . // Finds the median of `v[a - 1], v[a], v[a + 1]` and stores the index into `a`. . let mut sort_adjacent = |a: &mut usize| { . let tmp = *a; 890 ( 0.00%) sort3(&mut (tmp - 1), a, &mut (tmp + 1)); . }; . . // Find medians in the neighborhoods of `a`, `b`, and `c`. . sort_adjacent(&mut a); . sort_adjacent(&mut b); . sort_adjacent(&mut c); . } . . // Find the median among `a`, `b`, and `c`. 25 ( 0.00%) sort3(&mut a, &mut b, &mut c); . } . 228 ( 0.00%) if swaps < MAX_SWAPS { 878 ( 0.00%) (b, swaps == 0) . } else { . // The maximum number of swaps was performed. Chances are the slice is descending or mostly . // descending, so reversing will probably help sort it faster. . v.reverse(); . (len - 1 - b, true) . } . } . . /// Sorts `v` recursively. . /// . /// If the slice had a predecessor in the original array, it is specified as `pred`. . /// . /// `limit` is the number of allowed imbalanced partitions before switching to `heapsort`. If zero, . /// this function will immediately switch to heapsort. 5,907 ( 0.00%) fn recurse<'a, T, F>(mut v: &'a mut [T], is_less: &mut F, mut pred: Option<&'a T>, mut limit: u32) . where . F: FnMut(&T, &T) -> bool, . { . // Slices of up to this length get sorted using insertion sort. . const MAX_INSERTION: usize = 20; . . // True if the last partitioning was reasonably balanced. . let mut was_balanced = true; . // True if the last partitioning didn't shuffle elements (the slice was already partitioned). . let mut was_partitioned = true; . . loop { . let len = v.len(); . . // Very short slices get sorted using insertion sort. 2,106 ( 0.00%) if len <= MAX_INSERTION { . insertion_sort(v, is_less); . return; . } . . // If too many bad pivot choices were made, simply fall back to heapsort in order to . // guarantee `O(n * log(n))` worst-case. 868 ( 0.00%) if limit == 0 { . heapsort(v, is_less); . return; . } . . // If the last partitioning was imbalanced, try breaking patterns in the slice by shuffling . // some elements around. Hopefully we'll choose a better pivot this time. 868 ( 0.00%) if !was_balanced { 54 ( 0.00%) break_patterns(v); 18 ( 0.00%) limit -= 1; . } . . // Choose a pivot and try guessing whether the slice is already sorted. 868 ( 0.00%) let (pivot, likely_sorted) = choose_pivot(v, is_less); . . // If the last partitioning was decently balanced and didn't shuffle elements, and if pivot . // selection predicts the slice is likely already sorted... 891 ( 0.00%) if was_balanced && was_partitioned && likely_sorted { . // Try identifying several out-of-order elements and shifting them to correct . // positions. If the slice ends up being completely sorted, we're done. 184 ( 0.00%) if partial_insertion_sort(v, is_less) { . return; . } . } . . // If the chosen pivot is equal to the predecessor, then it's the smallest element in the . // slice. Partition the slice into elements equal to and elements greater than the pivot. . // This case is usually hit when the slice contains many duplicate elements. 434 ( 0.00%) if let Some(p) = pred { 2,253 ( 0.00%) if !is_less(p, &v[pivot]) { . let mid = partition_equal(v, pivot, is_less); . . // Continue sorting elements greater than the pivot. . v = &mut { v }[mid..]; . continue; . } . } . . // Partition the slice. . let (mid, was_p) = partition(v, pivot, is_less); 3,038 ( 0.00%) was_balanced = cmp::min(mid, len - mid) >= len / 8; . was_partitioned = was_p; . . // Split the slice into `left`, `pivot`, and `right`. . let (left, right) = { v }.split_at_mut(mid); . let (pivot, right) = right.split_at_mut(1); . let pivot = &pivot[0]; . . // Recurse into the shorter side only in order to minimize the total number of recursive . // calls and consume less stack space. Then just continue with the longer side (this is . // akin to tail recursion). 868 ( 0.00%) if left.len() < right.len() { 1,782 ( 0.00%) recurse(left, is_less, pred, limit); . v = right; . pred = Some(pivot); . } else { 1,416 ( 0.00%) recurse(right, is_less, Some(pivot), limit); . v = left; . } . } 4,296 ( 0.00%) } . . /// Sorts `v` using pattern-defeating quicksort, which is *O*(*n* \* log(*n*)) worst-case. . pub fn quicksort(v: &mut [T], mut is_less: F) . where . F: FnMut(&T, &T) -> bool, . { . // Sorting has no meaningful behavior on zero-sized types. . if mem::size_of::() == 0 { . return; . } . . // Limit the number of imbalanced partitions to `floor(log2(len)) + 1`. 219 ( 0.00%) let limit = usize::BITS - v.len().leading_zeros(); . 383 ( 0.00%) recurse(v, &mut is_less, None, limit); . } . . fn partition_at_index_loop<'a, T, F>( . mut v: &'a mut [T], . mut index: usize, . is_less: &mut F, . mut pred: Option<&'a T>, . ) where -- line 826 ---------------------------------------- 30,495 ( 0.01%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_lexer/src/lib.rs -------------------------------------------------------------------------------- Ir -- line 38 ---------------------------------------- . #[derive(Debug)] . pub struct Token { . pub kind: TokenKind, . pub len: usize, . } . . impl Token { . fn new(kind: TokenKind, len: usize) -> Token { 161,064 ( 0.08%) Token { kind, len } . } . } . . /// Enum representing common lexeme types. . // perf note: Changing all `usize` to `u32` doesn't change performance. See #77629 46,100 ( 0.02%) #[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)] . pub enum TokenKind { . // Multi-char tokens: . /// "// comment" . LineComment { doc_style: Option }, . /// `/* block comment */` . /// . /// Block comments can be recursive, so the sequence like `/* /* */` . /// will not be considered terminated and will result in a parsing error. -- line 60 ---------------------------------------- -- line 192 ---------------------------------------- . /// Literal starts with "0x". . Hexadecimal, . /// Literal doesn't contain a prefix. . Decimal, . } . . /// `rustc` allows files to have a shebang, e.g. "#!/usr/bin/rustrun", . /// but shebang isn't a part of rust syntax. 28 ( 0.00%) pub fn strip_shebang(input: &str) -> Option { . // Shebang must start with `#!` literally, without any preceding whitespace. . // For simplicity we consider any line starting with `#!` a shebang, . // regardless of restrictions put on shebangs by specific platforms. . if let Some(input_tail) = input.strip_prefix("#!") { . // Ok, this is a shebang but if the next non-whitespace token is `[`, . // then it may be valid Rust code, so consider it Rust code. . let next_non_whitespace_token = tokenize(input_tail).map(|tok| tok.kind).find(|tok| { . !matches!( -- line 208 ---------------------------------------- -- line 213 ---------------------------------------- . ) . }); . if next_non_whitespace_token != Some(TokenKind::OpenBracket) { . // No other choice than to consider this a shebang. . return Some(2 + input_tail.lines().next().unwrap_or_default().len()); . } . } . None 32 ( 0.00%) } . . /// Parses the first token from the provided input string. 53,688 ( 0.03%) pub fn first_token(input: &str) -> Token { . debug_assert!(!input.is_empty()); 17,896 ( 0.01%) Cursor::new(input).advance_token() 71,584 ( 0.03%) } . . /// Creates an iterator that produces tokens from the input string. . pub fn tokenize(input: &str) -> impl Iterator + '_ { . let mut cursor = Cursor::new(input); . std::iter::from_fn(move || { . if cursor.is_eof() { . None . } else { -- line 235 ---------------------------------------- -- line 243 ---------------------------------------- . /// See [Rust language reference](https://doc.rust-lang.org/reference/whitespace.html) . /// for definitions of these classes. . pub fn is_whitespace(c: char) -> bool { . // This is Pattern_White_Space. . // . // Note that this set is stable (ie, it doesn't change with different . // Unicode versions), so it's ok to just hard-code the values. . 32,122 ( 0.02%) matches!( . c, . // Usual ASCII suspects . '\u{0009}' // \t . | '\u{000A}' // \n . | '\u{000B}' // vertical tab . | '\u{000C}' // form feed . | '\u{000D}' // \r . | '\u{0020}' // space -- line 259 ---------------------------------------- -- line 269 ---------------------------------------- . | '\u{2028}' // LINE SEPARATOR . | '\u{2029}' // PARAGRAPH SEPARATOR . ) . } . . /// True if `c` is valid as a first character of an identifier. . /// See [Rust language reference](https://doc.rust-lang.org/reference/identifiers.html) for . /// a formal definition of valid identifier name. 5 ( 0.00%) pub fn is_id_start(c: char) -> bool { . // This is XID_Start OR '_' (which formally is not a XID_Start). 730 ( 0.00%) c == '_' || unicode_xid::UnicodeXID::is_xid_start(c) 5 ( 0.00%) } . . /// True if `c` is valid as a non-first character of an identifier. . /// See [Rust language reference](https://doc.rust-lang.org/reference/identifiers.html) for . /// a formal definition of valid identifier name. . pub fn is_id_continue(c: char) -> bool { . unicode_xid::UnicodeXID::is_xid_continue(c) . } . -- line 288 ---------------------------------------- -- line 293 ---------------------------------------- . is_id_start(start) && chars.all(is_id_continue) . } else { . false . } . } . . impl Cursor<'_> { . /// Parses a token from the input string. 143,168 ( 0.07%) fn advance_token(&mut self) -> Token { . let first_char = self.bump().unwrap(); 65,709 ( 0.03%) let token_kind = match first_char { . // Slash, comment or block comment. 872 ( 0.00%) '/' => match self.first() { . '/' => self.line_comment(), . '*' => self.block_comment(), 36 ( 0.00%) _ => Slash, . }, . . // Whitespace sequence. . c if is_whitespace(c) => self.whitespace(), . . // Raw identifier, raw string literal or identifier. 896 ( 0.00%) 'r' => match (self.first(), self.second()) { . ('#', c1) if is_id_start(c1) => self.raw_ident(), . ('#', _) | ('"', _) => { . let (n_hashes, err) = self.raw_double_quoted_string(1); . let suffix_start = self.len_consumed(); . if err.is_none() { . self.eat_literal_suffix(); . } . let kind = RawStr { n_hashes, err }; . Literal { kind, suffix_start } . } . _ => self.ident_or_unknown_prefix(), . }, . . // Byte literal, byte string literal, raw byte string literal or identifier. 1,059 ( 0.00%) 'b' => match (self.first(), self.second()) { . ('\'', _) => { . self.bump(); 18 ( 0.00%) let terminated = self.single_quoted_string(); . let suffix_start = self.len_consumed(); 12 ( 0.00%) if terminated { . self.eat_literal_suffix(); . } . let kind = Byte { terminated }; 12 ( 0.00%) Literal { kind, suffix_start } . } . ('"', _) => { . self.bump(); . let terminated = self.double_quoted_string(); . let suffix_start = self.len_consumed(); . if terminated { . self.eat_literal_suffix(); . } -- line 347 ---------------------------------------- -- line 361 ---------------------------------------- . _ => self.ident_or_unknown_prefix(), . }, . . // Identifier (this should be checked after other variant that can . // start as identifier). . c if is_id_start(c) => self.ident_or_unknown_prefix(), . . // Numeric literal. 23,334 ( 0.01%) c @ '0'..='9' => { . let literal_kind = self.number(c); . let suffix_start = self.len_consumed(); . self.eat_literal_suffix(); 1,295 ( 0.00%) TokenKind::Literal { kind: literal_kind, suffix_start } . } . . // One-symbol tokens. 948 ( 0.00%) ';' => Semi, 796 ( 0.00%) ',' => Comma, 582 ( 0.00%) '.' => Dot, 1,498 ( 0.00%) '(' => OpenParen, 1,498 ( 0.00%) ')' => CloseParen, 774 ( 0.00%) '{' => OpenBrace, 774 ( 0.00%) '}' => CloseBrace, 524 ( 0.00%) '[' => OpenBracket, 524 ( 0.00%) ']' => CloseBracket, 6 ( 0.00%) '@' => At, 206 ( 0.00%) '#' => Pound, . '~' => Tilde, 12 ( 0.00%) '?' => Question, 2,282 ( 0.00%) ':' => Colon, 1,256 ( 0.00%) '$' => Dollar, 832 ( 0.00%) '=' => Eq, 250 ( 0.00%) '!' => Bang, 320 ( 0.00%) '<' => Lt, 732 ( 0.00%) '>' => Gt, 342 ( 0.00%) '-' => Minus, 320 ( 0.00%) '&' => And, 70 ( 0.00%) '|' => Or, 98 ( 0.00%) '+' => Plus, 188 ( 0.00%) '*' => Star, 2 ( 0.00%) '^' => Caret, 18 ( 0.00%) '%' => Percent, . . // Lifetime or character literal. 159 ( 0.00%) '\'' => self.lifetime_or_char(), . . // String literal. . '"' => { 120 ( 0.00%) let terminated = self.double_quoted_string(); . let suffix_start = self.len_consumed(); 80 ( 0.00%) if terminated { . self.eat_literal_suffix(); . } . let kind = Str { terminated }; 80 ( 0.00%) Literal { kind, suffix_start } . } . // Identifier starting with an emoji. Only lexed for graceful error recovery. . c if !c.is_ascii() && unic_emoji_char::is_emoji(c) => { . self.fake_ident_or_unknown_prefix() . } . _ => Unknown, . }; . Token::new(token_kind, self.len_consumed()) 161,064 ( 0.08%) } . . fn line_comment(&mut self) -> TokenKind { . debug_assert!(self.prev() == '/' && self.first() == '/'); . self.bump(); . 614 ( 0.00%) let doc_style = match self.first() { . // `//!` is an inner line doc comment. . '!' => Some(DocStyle::Inner), . // `////` (more than 3 slashes) is not considered a doc comment. 279 ( 0.00%) '/' if self.second() != '/' => Some(DocStyle::Outer), . _ => None, . }; . 7,564 ( 0.00%) self.eat_while(|c| c != '\n'); 600 ( 0.00%) LineComment { doc_style } . } . . fn block_comment(&mut self) -> TokenKind { . debug_assert!(self.prev() == '/' && self.first() == '*'); . self.bump(); . . let doc_style = match self.first() { . // `/*!` is an inner block doc comment. -- line 447 ---------------------------------------- -- line 474 ---------------------------------------- . } . . BlockComment { doc_style, terminated: depth == 0 } . } . . fn whitespace(&mut self) -> TokenKind { . debug_assert!(is_whitespace(self.prev())); . self.eat_while(is_whitespace); 5,284 ( 0.00%) Whitespace . } . . fn raw_ident(&mut self) -> TokenKind { . debug_assert!(self.prev() == 'r' && self.first() == '#' && is_id_start(self.second())); . // Eat "#" symbol. . self.bump(); . // Eat the identifier part of RawIdent. . self.eat_identifier(); . RawIdent . } . 23,050 ( 0.01%) fn ident_or_unknown_prefix(&mut self) -> TokenKind { . debug_assert!(is_id_start(self.prev())); . // Start is already eaten, eat the rest of identifier. 9,220 ( 0.00%) self.eat_while(is_id_continue); . // Known prefixes must have been handled earlier. So if . // we see a prefix here, it is definitely an unknown prefix. 9,220 ( 0.00%) match self.first() { . '#' | '"' | '\'' => UnknownPrefix, 4,610 ( 0.00%) c if !c.is_ascii() && unic_emoji_char::is_emoji(c) => { . self.fake_ident_or_unknown_prefix() . } 4,610 ( 0.00%) _ => Ident, . } 18,440 ( 0.01%) } . . fn fake_ident_or_unknown_prefix(&mut self) -> TokenKind { . // Start is already eaten, eat the rest of identifier. . self.eat_while(|c| { . unicode_xid::UnicodeXID::is_xid_continue(c) . || (!c.is_ascii() && unic_emoji_char::is_emoji(c)) . || c == '\u{200d}' . }); -- line 515 ---------------------------------------- -- line 519 ---------------------------------------- . '#' | '"' | '\'' => UnknownPrefix, . _ => InvalidIdent, . } . } . . fn number(&mut self, first_digit: char) -> LiteralKind { . debug_assert!('0' <= self.prev() && self.prev() <= '9'); . let mut base = Base::Decimal; 518 ( 0.00%) if first_digit == '0' { . // Attempt to parse encoding base. 522 ( 0.00%) let has_digits = match self.first() { . 'b' => { . base = Base::Binary; . self.bump(); . self.eat_decimal_digits() . } . 'o' => { . base = Base::Octal; . self.bump(); -- line 537 ---------------------------------------- -- line 538 ---------------------------------------- . self.eat_decimal_digits() . } . 'x' => { . base = Base::Hexadecimal; . self.bump(); . self.eat_hexadecimal_digits() . } . // Not a base prefix. 363 ( 0.00%) '0'..='9' | '_' | '.' | 'e' | 'E' => { . self.eat_decimal_digits(); . true . } . // Just a 0. . _ => return Int { base, empty_int: false }, . }; . // Base prefix was provided, but there were no digits . // after it, e.g. "0x". -- line 554 ---------------------------------------- -- line 555 ---------------------------------------- . if !has_digits { . return Int { base, empty_int: true }; . } . } else { . // No base prefix, parse number in the usual way. . self.eat_decimal_digits(); . }; . 836 ( 0.00%) match self.first() { . // Don't be greedy if this is actually an . // integer literal followed by field/method access or a range pattern . // (`0..2` and `12.foo()`) 74 ( 0.00%) '.' if self.second() != '.' && !is_id_start(self.second()) => { . // might have stuff after the ., and if it does, it needs to start . // with a number . self.bump(); . let mut empty_exponent = false; 2 ( 0.00%) if self.first().is_digit(10) { 4 ( 0.00%) self.eat_decimal_digits(); 6 ( 0.00%) match self.first() { . 'e' | 'E' => { . self.bump(); . empty_exponent = !self.eat_float_exponent(); . } . _ => (), . } . } . Float { base, empty_exponent } -- line 582 ---------------------------------------- -- line 585 ---------------------------------------- . self.bump(); . let empty_exponent = !self.eat_float_exponent(); . Float { base, empty_exponent } . } . _ => Int { base, empty_int: false }, . } . } . 371 ( 0.00%) fn lifetime_or_char(&mut self) -> TokenKind { . debug_assert!(self.prev() == '\''); . 106 ( 0.00%) let can_be_a_lifetime = if self.second() == '\'' { . // It's surely not a lifetime. . false . } else { . // If the first symbol is valid for identifier, it can be a lifetime. . // Also check if it's a number for a better error reporting (so '0 will . // be reported as invalid lifetime and not as unterminated char literal). . is_id_start(self.first()) || self.first().is_digit(10) . }; -- line 604 ---------------------------------------- -- line 617 ---------------------------------------- . // length greater than 1. . . let starts_with_number = self.first().is_digit(10); . . // Skip the literal contents. . // First symbol can be a number (which isn't a valid identifier start), . // so skip it without any checks. . self.bump(); 106 ( 0.00%) self.eat_while(is_id_continue); . . // Check if after skipping literal contents we've met a closing . // single quote (which means that user attempted to create a . // string with single quotes). 106 ( 0.00%) if self.first() == '\'' { . self.bump(); . let kind = Char { terminated: true }; . Literal { kind, suffix_start: self.len_consumed() } . } else { 106 ( 0.00%) Lifetime { starts_with_number } . } 318 ( 0.00%) } . . fn single_quoted_string(&mut self) -> bool { . debug_assert!(self.prev() == '\''); . // Check if it's a one-symbol literal. 24 ( 0.00%) if self.second() == '\'' && self.first() != '\\' { . self.bump(); . self.bump(); . return true; . } . . // Literal has more than one symbol. . . // Parse until either quotes are terminated or error is detected. -- line 650 ---------------------------------------- -- line 670 ---------------------------------------- . // Skip the character. . _ => { . self.bump(); . } . } . } . // String was not terminated. . false 6 ( 0.00%) } . . /// Eats double-quoted string and returns true . /// if string is terminated. . fn double_quoted_string(&mut self) -> bool { . debug_assert!(self.prev() == '"'); . while let Some(c) = self.bump() { 2,912 ( 0.00%) match c { . '"' => { . return true; . } . '\\' if self.first() == '\\' || self.first() == '"' => { . // Bump again to skip escaped character. . self.bump(); . } . _ => (), . } . } . // End of file reached. . false 40 ( 0.00%) } . . /// Eats the double-quoted string and returns `n_hashes` and an error if encountered. . fn raw_double_quoted_string(&mut self, prefix_len: usize) -> (u16, Option) { . // Wrap the actual function to handle the error with too many hashes. . // This way, it eats the whole raw string. . let (n_hashes, err) = self.raw_string_unvalidated(prefix_len); . // Only up to 65535 `#`s are allowed in raw strings . match u16::try_from(n_hashes) { -- line 706 ---------------------------------------- -- line 773 ---------------------------------------- . max_hashes = n_end_hashes; . } . } . } . . fn eat_decimal_digits(&mut self) -> bool { . let mut has_digits = false; . loop { 396 ( 0.00%) match self.first() { . '_' => { . self.bump(); . } 585 ( 0.00%) '0'..='9' => { . has_digits = true; . self.bump(); . } . _ => break, . } . } . has_digits 324 ( 0.00%) } . . fn eat_hexadecimal_digits(&mut self) -> bool { . let mut has_digits = false; . loop { 66 ( 0.00%) match self.first() { . '_' => { . self.bump(); . } 180 ( 0.00%) '0'..='9' | 'a'..='f' | 'A'..='F' => { . has_digits = true; . self.bump(); . } . _ => break, . } . } . has_digits 8 ( 0.00%) } . . /// Eats the float exponent. Returns true if at least one digit was met, . /// and returns false otherwise. . fn eat_float_exponent(&mut self) -> bool { . debug_assert!(self.prev() == 'e' || self.prev() == 'E'); . if self.first() == '-' || self.first() == '+' { . self.bump(); . } . self.eat_decimal_digits() . } . . // Eats the suffix of the literal, e.g. "_u8". . fn eat_literal_suffix(&mut self) { 610 ( 0.00%) self.eat_identifier(); . } . . // Eats the identifier. 915 ( 0.00%) fn eat_identifier(&mut self) { . if !is_id_start(self.first()) { . return; . } . self.bump(); . 155 ( 0.00%) self.eat_while(is_id_continue); 1,096 ( 0.00%) } . } 214,505 ( 0.10%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs -------------------------------------------------------------------------------- Ir -- line 91 ---------------------------------------- . // maximum of number bytes needed to fill an 8-byte-sized element on which . // SipHash operates. Note that for variable-sized copies which are known to be . // less than 8 bytes, this function will perform more work than necessary unless . // the compiler is able to optimize the extra work away. . #[inline] . unsafe fn copy_nonoverlapping_small(src: *const u8, dst: *mut u8, count: usize) { . debug_assert!(count <= 8); . 24,558 ( 0.01%) if count == 8 { . ptr::copy_nonoverlapping(src, dst, 8); . return; . } . . let mut i = 0; 31,250 ( 0.02%) if i + 3 < count { . ptr::copy_nonoverlapping(src.add(i), dst.add(i), 4); . i += 4; . } . 67,669 ( 0.03%) if i + 1 < count { . ptr::copy_nonoverlapping(src.add(i), dst.add(i), 2); 8,072 ( 0.00%) i += 2 . } . 31,250 ( 0.02%) if i < count { 21,971 ( 0.01%) *dst.add(i) = *src.add(i); . i += 1; . } . . debug_assert_eq!(i, count); . } . . // # Implementation . // -- line 124 ---------------------------------------- -- line 201 ---------------------------------------- . . hasher . } . . // A specialized write function for values with size <= 8. . #[inline] . fn short_write(&mut self, x: T) { . let size = mem::size_of::(); 170,452 ( 0.08%) let nbuf = self.nbuf; . debug_assert!(size <= 8); . debug_assert!(nbuf < BUFFER_SIZE); . debug_assert!(nbuf + size < BUFFER_WITH_SPILL_SIZE); . 1,096,666 ( 0.54%) if nbuf + size < BUFFER_SIZE { . unsafe { . // The memcpy call is optimized away because the size is known. . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . ptr::copy_nonoverlapping(&x as *const _ as *const u8, dst, size); . } . 320,211 ( 0.16%) self.nbuf = nbuf + size; . . return; . } . 43,063 ( 0.02%) unsafe { self.short_write_process_buffer(x) } . } . . // A specialized write function for values with size <= 8 that should only . // be called when the write would cause the buffer to fill. . // . // SAFETY: the write of `x` into `self.buf` starting at byte offset . // `self.nbuf` must cause `self.buf` to become fully initialized (and not . // overflow) if it wasn't already. . #[inline(never)] 16,315 ( 0.01%) unsafe fn short_write_process_buffer(&mut self, x: T) { . let size = mem::size_of::(); 16,315 ( 0.01%) let nbuf = self.nbuf; . debug_assert!(size <= 8); . debug_assert!(nbuf < BUFFER_SIZE); . debug_assert!(nbuf + size >= BUFFER_SIZE); . debug_assert!(nbuf + size < BUFFER_WITH_SPILL_SIZE); . . // Copy first part of input into end of buffer, possibly into spill . // element. The memcpy call is optimized away because the size is known. . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . ptr::copy_nonoverlapping(&x as *const _ as *const u8, dst, size); . . // Process buffer. . for i in 0..BUFFER_CAPACITY { 163,150 ( 0.08%) let elem = self.buf.get_unchecked(i).assume_init().to_le(); 130,520 ( 0.06%) self.state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut self.state); 146,835 ( 0.07%) self.state.v0 ^= elem; . } . . // Copy remaining input into start of buffer by copying size - 1 . // elements from spill (at most size - 1 bytes could have overflowed . // into the spill). The memcpy call is optimized away because the size . // is known. And the whole copy is optimized away for size == 1. . let src = self.buf.get_unchecked(BUFFER_SPILL_INDEX) as *const _ as *const u8; . ptr::copy_nonoverlapping(src, self.buf.as_mut_ptr() as *mut u8, size - 1); . . // This function should only be called when the write fills the buffer. . // Therefore, when size == 1, the new `self.nbuf` must be zero. The size . // is statically known, so the branch is optimized away. 76,907 ( 0.04%) self.nbuf = if size == 1 { 0 } else { nbuf + size - BUFFER_SIZE }; 65,260 ( 0.03%) self.processed += BUFFER_SIZE; 32,630 ( 0.02%) } . . // A write function for byte slices. . #[inline] . fn slice_write(&mut self, msg: &[u8]) { . let length = msg.len(); 7,462 ( 0.00%) let nbuf = self.nbuf; . debug_assert!(nbuf < BUFFER_SIZE); . 81,843 ( 0.04%) if nbuf + length < BUFFER_SIZE { . unsafe { . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . 29,964 ( 0.01%) if length <= 8 { . copy_nonoverlapping_small(msg.as_ptr(), dst, length); . } else { . // This memcpy is *not* optimized away. . ptr::copy_nonoverlapping(msg.as_ptr(), dst, length); . } . } . 14,988 ( 0.01%) self.nbuf = nbuf + length; . . return; . } . 10,342 ( 0.01%) unsafe { self.slice_write_process_buffer(msg) } . } . . // A write function for byte slices that should only be called when the . // write would cause the buffer to fill. . // . // SAFETY: `self.buf` must be initialized up to the byte offset `self.nbuf`, . // and `msg` must contain enough bytes to initialize the rest of the element . // containing the byte offset `self.nbuf`. . #[inline(never)] 6,860 ( 0.00%) unsafe fn slice_write_process_buffer(&mut self, msg: &[u8]) { . let length = msg.len(); 1,372 ( 0.00%) let nbuf = self.nbuf; . debug_assert!(nbuf < BUFFER_SIZE); . debug_assert!(nbuf + length >= BUFFER_SIZE); . . // Always copy first part of input into current element of buffer. . // This function should only be called when the write fills the buffer, . // so we know that there is enough input to fill the current element. 4,116 ( 0.00%) let valid_in_elem = nbuf % ELEM_SIZE; 1,372 ( 0.00%) let needed_in_elem = ELEM_SIZE - valid_in_elem; . . let src = msg.as_ptr(); . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . copy_nonoverlapping_small(src, dst, needed_in_elem); . . // Process buffer. . . // Using `nbuf / ELEM_SIZE + 1` rather than `(nbuf + needed_in_elem) / . // ELEM_SIZE` to show the compiler that this loop's upper bound is > 0. . // We know that is true, because last step ensured we have a full . // element in the buffer. 2,744 ( 0.00%) let last = nbuf / ELEM_SIZE + 1; . . for i in 0..last { 10,553 ( 0.01%) let elem = self.buf.get_unchecked(i).assume_init().to_le(); 11,925 ( 0.01%) self.state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut self.state); 21,106 ( 0.01%) self.state.v0 ^= elem; . } . . // Process the remaining element-sized chunks of input. . let mut processed = needed_in_elem; 2,744 ( 0.00%) let input_left = length - processed; 1,092 ( 0.00%) let elems_left = input_left / ELEM_SIZE; . let extra_bytes_left = input_left % ELEM_SIZE; . . for _ in 0..elems_left { 864 ( 0.00%) let elem = (msg.as_ptr().add(processed) as *const u64).read_unaligned().to_le(); 864 ( 0.00%) self.state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut self.state); 864 ( 0.00%) self.state.v0 ^= elem; 1,728 ( 0.00%) processed += ELEM_SIZE; . } . . // Copy remaining input into start of buffer. . let src = msg.as_ptr().add(processed); . let dst = self.buf.as_mut_ptr() as *mut u8; . copy_nonoverlapping_small(src, dst, extra_bytes_left); . 1,372 ( 0.00%) self.nbuf = extra_bytes_left; 6,860 ( 0.00%) self.processed += nbuf + processed; 8,232 ( 0.00%) } . . #[inline] . pub fn finish128(mut self) -> (u64, u64) { . debug_assert!(self.nbuf < BUFFER_SIZE); . . // Process full elements in buffer. 3,051 ( 0.00%) let last = self.nbuf / ELEM_SIZE; . . // Since we're consuming self, avoid updating members for a potential . // performance gain. 4,068 ( 0.00%) let mut state = self.state; . . for i in 0..last { 2,803 ( 0.00%) let elem = unsafe { self.buf.get_unchecked(i).assume_init().to_le() }; 2,803 ( 0.00%) state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut state); 2,803 ( 0.00%) state.v0 ^= elem; . } . . // Get remaining partial element. 2,034 ( 0.00%) let elem = if self.nbuf % ELEM_SIZE != 0 { . unsafe { . // Ensure element is initialized by writing zero bytes. At most . // `ELEM_SIZE - 1` are required given the above check. It's safe . // to write this many because we have the spill and we maintain . // `self.nbuf` such that this write will start before the spill. . let dst = (self.buf.as_mut_ptr() as *mut u8).add(self.nbuf); . ptr::write_bytes(dst, 0, ELEM_SIZE - 1); 875 ( 0.00%) self.buf.get_unchecked(last).assume_init().to_le() . } . } else { . 0 . }; . . // Finalize the hash. 2,909 ( 0.00%) let length = self.processed + self.nbuf; 2,032 ( 0.00%) let b: u64 = ((length as u64 & 0xff) << 56) | elem; . 1,016 ( 0.00%) state.v3 ^= b; . Sip24Rounds::c_rounds(&mut state); 1,016 ( 0.00%) state.v0 ^= b; . 1,016 ( 0.00%) state.v2 ^= 0xee; . Sip24Rounds::d_rounds(&mut state); 2,690 ( 0.00%) let _0 = state.v0 ^ state.v1 ^ state.v2 ^ state.v3; . 656 ( 0.00%) state.v1 ^= 0xdd; . Sip24Rounds::d_rounds(&mut state); 656 ( 0.00%) let _1 = state.v0 ^ state.v1 ^ state.v2 ^ state.v3; . . (_0, _1) . } . } . . impl Hasher for SipHasher128 { . #[inline] . fn write_u8(&mut self, i: u8) { -- line 414 ---------------------------------------- -- line 471 ---------------------------------------- . } . . #[derive(Debug, Clone, Default)] . struct Sip24Rounds; . . impl Sip24Rounds { . #[inline] . fn c_rounds(state: &mut State) { 603,455 ( 0.29%) compress!(state); 663,628 ( 0.32%) compress!(state); . } . . #[inline] . fn d_rounds(state: &mut State) { 5,376 ( 0.00%) compress!(state); 5,376 ( 0.00%) compress!(state); 5,376 ( 0.00%) compress!(state); 4,361 ( 0.00%) compress!(state); . } . } 72,717 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_lint/src/builtin.rs -------------------------------------------------------------------------------- Ir -- line 90 ---------------------------------------- . fn pierce_parens(mut expr: &ast::Expr) -> &ast::Expr { . while let ast::ExprKind::Paren(sub) = &expr.kind { . expr = sub; . } . expr . } . . impl EarlyLintPass for WhileTrue { 2,130 ( 0.00%) fn check_expr(&mut self, cx: &EarlyContext<'_>, e: &ast::Expr) { 710 ( 0.00%) if let ast::ExprKind::While(cond, _, label) = &e.kind { . if let ast::ExprKind::Lit(ref lit) = pierce_parens(cond).kind { . if let ast::LitKind::Bool(true) = lit.kind { . if !lit.span.from_expansion() { . let msg = "denote infinite loops with `loop { ... }`"; . let condition_span = e.span.with_hi(cond.span.hi()); . cx.struct_span_lint(WHILE_TRUE, condition_span, |lint| { . lint.build(msg) . .span_suggestion_short( -- line 107 ---------------------------------------- -- line 117 ---------------------------------------- . Applicability::MachineApplicable, . ) . .emit(); . }) . } . } . } . } 2,485 ( 0.00%) } . } . . declare_lint! { . /// The `box_pointers` lints use of the Box type. . /// . /// ### Example . /// . /// ```rust,compile_fail -- line 133 ---------------------------------------- -- line 147 ---------------------------------------- . BOX_POINTERS, . Allow, . "use of owned (Box type) heap memory" . } . . declare_lint_pass!(BoxPointers => [BOX_POINTERS]); . . impl BoxPointers { 4,224 ( 0.00%) fn check_heap_type(&self, cx: &LateContext<'_>, span: Span, ty: Ty<'_>) { 10,216 ( 0.00%) for leaf in ty.walk() { . if let GenericArgKind::Type(leaf_ty) = leaf.unpack() { 317 ( 0.00%) if leaf_ty.is_box() { . cx.struct_span_lint(BOX_POINTERS, span, |lint| { . lint.build(&format!("type uses owned (Box type) pointers: {}", ty)).emit() . }); . } . } . } 3,072 ( 0.00%) } . } . . impl<'tcx> LateLintPass<'tcx> for BoxPointers { 468 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'_>, it: &hir::Item<'_>) { 208 ( 0.00%) match it.kind { . hir::ItemKind::Fn(..) . | hir::ItemKind::TyAlias(..) . | hir::ItemKind::Enum(..) . | hir::ItemKind::Struct(..) . | hir::ItemKind::Union(..) => { 25 ( 0.00%) self.check_heap_type(cx, it.span, cx.tcx.type_of(it.def_id)) . } . _ => (), . } . . // If it's a struct, we also have to check the fields' types 161 ( 0.00%) match it.kind { . hir::ItemKind::Struct(ref struct_def, _) | hir::ItemKind::Union(ref struct_def, _) => { 6 ( 0.00%) for struct_field in struct_def.fields() { 21 ( 0.00%) let def_id = cx.tcx.hir().local_def_id(struct_field.hir_id); 18 ( 0.00%) self.check_heap_type(cx, struct_field.span, cx.tcx.type_of(def_id)); . } . } . _ => (), . } 416 ( 0.00%) } . . fn check_expr(&mut self, cx: &LateContext<'_>, e: &hir::Expr<'_>) { 1,128 ( 0.00%) let ty = cx.typeck_results().node_type(e.hir_id); 1,504 ( 0.00%) self.check_heap_type(cx, e.span, ty); . } . } . . declare_lint! { . /// The `non_shorthand_field_patterns` lint detects using `Struct { x: x }` . /// instead of `Struct { x }` in a pattern. . /// . /// ### Example -- line 203 ---------------------------------------- -- line 230 ---------------------------------------- . NON_SHORTHAND_FIELD_PATTERNS, . Warn, . "using `Struct { x: x }` instead of `Struct { x }` in a pattern" . } . . declare_lint_pass!(NonShorthandFieldPatterns => [NON_SHORTHAND_FIELD_PATTERNS]); . . impl<'tcx> LateLintPass<'tcx> for NonShorthandFieldPatterns { 707 ( 0.00%) fn check_pat(&mut self, cx: &LateContext<'_>, pat: &hir::Pat<'_>) { 211 ( 0.00%) if let PatKind::Struct(ref qpath, field_pats, _) = pat.kind { 15 ( 0.00%) let variant = cx . .typeck_results() . .pat_ty(pat) . .ty_adt_def() . .expect("struct pattern type is not an ADT") 18 ( 0.00%) .variant_of_res(cx.qpath_res(qpath, pat.hir_id)); . for fieldpat in field_pats { 6 ( 0.00%) if fieldpat.is_shorthand { . continue; . } 12 ( 0.00%) if fieldpat.span.from_expansion() { . // Don't lint if this is a macro expansion: macro authors . // shouldn't have to worry about this kind of style issue . // (Issue #49588) . continue; . } . if let PatKind::Binding(binding_annot, _, ident, None) = fieldpat.pat.kind { . if cx.tcx.find_field_index(ident, &variant) . == Some(cx.tcx.field_index(fieldpat.hir_id, cx.typeck_results())) -- line 258 ---------------------------------------- -- line 278 ---------------------------------------- . Applicability::MachineApplicable, . ); . err.emit(); . }); . } . } . } . } 808 ( 0.00%) } . } . . declare_lint! { . /// The `unsafe_code` lint catches usage of `unsafe` code. . /// . /// ### Example . /// . /// ```rust,compile_fail -- line 294 ---------------------------------------- -- line 337 ---------------------------------------- . override them", . ) . .emit(); . }) . } . } . . impl EarlyLintPass for UnsafeCode { 249 ( 0.00%) fn check_attribute(&mut self, cx: &EarlyContext<'_>, attr: &ast::Attribute) { 66 ( 0.00%) if attr.has_name(sym::allow_internal_unsafe) { . self.report_unsafe(cx, attr.span, |lint| { . lint.build( . "`allow_internal_unsafe` allows defining \ . macros using unsafe without triggering \ . the `unsafe_code` lint at their call site", . ) . .emit() . }); . } 332 ( 0.00%) } . 1,065 ( 0.00%) fn check_expr(&mut self, cx: &EarlyContext<'_>, e: &ast::Expr) { 710 ( 0.00%) if let ast::ExprKind::Block(ref blk, _) = e.kind { . // Don't warn about generated blocks; that'll just pollute the output. 16 ( 0.00%) if blk.rules == ast::BlockCheckMode::Unsafe(ast::UserProvided) { . self.report_unsafe(cx, blk.span, |lint| { . lint.build("usage of an `unsafe` block").emit() . }); . } . } 1,420 ( 0.00%) } . 312 ( 0.00%) fn check_item(&mut self, cx: &EarlyContext<'_>, it: &ast::Item) { 335 ( 0.00%) match it.kind { . ast::ItemKind::Trait(box ast::Trait { unsafety: ast::Unsafe::Yes(_), .. }) => self . .report_unsafe(cx, it.span, |lint| { . lint.build("declaration of an `unsafe` trait").emit() . }), . . ast::ItemKind::Impl(box ast::Impl { unsafety: ast::Unsafe::Yes(_), .. }) => self . .report_unsafe(cx, it.span, |lint| { . lint.build("implementation of an `unsafe` trait").emit() -- line 378 ---------------------------------------- -- line 409 ---------------------------------------- . attr.span, . "declaration of a static with `export_name`", . ); . } . } . . _ => {} . } 364 ( 0.00%) } . 126 ( 0.00%) fn check_impl_item(&mut self, cx: &EarlyContext<'_>, it: &ast::AssocItem) { 42 ( 0.00%) if let ast::AssocItemKind::Fn(..) = it.kind { 147 ( 0.00%) if let Some(attr) = cx.sess().find_by_name(&it.attrs, sym::no_mangle) { . self.report_overriden_symbol_name( . cx, . attr.span, . "declaration of a `no_mangle` method", . ); . } 147 ( 0.00%) if let Some(attr) = cx.sess().find_by_name(&it.attrs, sym::export_name) { . self.report_overriden_symbol_name( . cx, . attr.span, . "declaration of a method with `export_name`", . ); . } . } 147 ( 0.00%) } . . fn check_fn(&mut self, cx: &EarlyContext<'_>, fk: FnKind<'_>, span: Span, _: ast::NodeId) { 84 ( 0.00%) if let FnKind::Fn( . ctxt, . _, . ast::FnSig { header: ast::FnHeader { unsafety: ast::Unsafe::Yes(_), .. }, .. }, . _, . body, . ) = fk . { . let msg = match ctxt { -- line 447 ---------------------------------------- -- line 487 ---------------------------------------- . . /// Private traits or trait items that leaked through. Don't check their methods. . private_traits: FxHashSet, . } . . impl_lint_pass!(MissingDoc => [MISSING_DOCS]); . . fn has_doc(attr: &ast::Attribute) -> bool { 44 ( 0.00%) if attr.is_doc_comment() { . return true; . } . 1 ( 0.00%) if !attr.has_name(sym::doc) { . return false; . } . . if attr.value_str().is_some() { . return true; . } . . if let Some(list) = attr.meta_item_list() { -- line 507 ---------------------------------------- -- line 512 ---------------------------------------- . } . } . . false . } . . impl MissingDoc { . pub fn new() -> MissingDoc { 4 ( 0.00%) MissingDoc { doc_hidden_stack: vec![false], private_traits: FxHashSet::default() } . } . . fn doc_hidden(&self) -> bool { 645 ( 0.00%) *self.doc_hidden_stack.last().expect("empty doc_hidden_stack") . } . 403 ( 0.00%) fn check_missing_docs_attrs( . &self, . cx: &LateContext<'_>, . def_id: LocalDefId, . sp: Span, . article: &'static str, . desc: &'static str, . ) { . // If we're building a test harness, then warning about . // documentation is probably not really relevant right now. 62 ( 0.00%) if cx.sess().opts.test { . return; . } . . // `#[doc(hidden)]` disables missing_docs check. 31 ( 0.00%) if self.doc_hidden() { . return; . } . . // Only check publicly-visible items, using the result from the privacy pass. . // It's an option so the crate root can also use this function (it doesn't . // have a `NodeId`). 19 ( 0.00%) if def_id != CRATE_DEF_ID { 65 ( 0.00%) if !cx.access_levels.is_exported(def_id) { . return; . } . } . 47 ( 0.00%) let attrs = cx.tcx.get_attrs(def_id.to_def_id()); . let has_doc = attrs.iter().any(has_doc); . if !has_doc { 14 ( 0.00%) cx.struct_span_lint( . MISSING_DOCS, 8 ( 0.00%) cx.tcx.sess.source_map().guess_head_span(sp), . |lint| { . lint.build(&format!("missing documentation for {} {}", article, desc)).emit() . }, . ); . } 248 ( 0.00%) } . } . . impl<'tcx> LateLintPass<'tcx> for MissingDoc { 4,298 ( 0.00%) fn enter_lint_attrs(&mut self, _cx: &LateContext<'_>, attrs: &[ast::Attribute]) { 614 ( 0.00%) let doc_hidden = self.doc_hidden() . || attrs.iter().any(|attr| { 194 ( 0.00%) attr.has_name(sym::doc) 255 ( 0.00%) && match attr.meta_item_list() { . None => false, 357 ( 0.00%) Some(l) => attr::list_contains_name(&l, sym::hidden), . } . }); . self.doc_hidden_stack.push(doc_hidden); 4,912 ( 0.00%) } . . fn exit_lint_attrs(&mut self, _: &LateContext<'_>, _attrs: &[ast::Attribute]) { . self.doc_hidden_stack.pop().expect("empty doc_hidden_stack"); . } . 6 ( 0.00%) fn check_crate(&mut self, cx: &LateContext<'_>) { 10 ( 0.00%) self.check_missing_docs_attrs( . cx, . CRATE_DEF_ID, 1 ( 0.00%) cx.tcx.def_span(CRATE_DEF_ID), . "the", . "crate", . ); 4 ( 0.00%) } . 312 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'_>, it: &hir::Item<'_>) { 206 ( 0.00%) match it.kind { . hir::ItemKind::Trait(.., trait_item_refs) => { . // Issue #11592: traits are always considered exported, even when private. . if let hir::VisibilityKind::Inherited = it.vis.node { . self.private_traits.insert(it.hir_id()); . for trait_item_ref in trait_item_refs { . self.private_traits.insert(trait_item_ref.id.hir_id()); . } . return; . } . } 48 ( 0.00%) hir::ItemKind::Impl(hir::Impl { of_trait: Some(ref trait_ref), items, .. }) => { . // If the trait is private, add the impl items to `private_traits` so they don't get . // reported for missing docs. 72 ( 0.00%) let real_trait = trait_ref.path.res.def_id(); 24 ( 0.00%) let Some(def_id) = real_trait.as_local() else { return }; . let Some(Node::Item(item)) = cx.tcx.hir().find_by_def_id(def_id) else { return }; . if let hir::VisibilityKind::Inherited = item.vis.node { . for impl_item_ref in items { . self.private_traits.insert(impl_item_ref.id.hir_id()); . } . } . return; . } -- line 620 ---------------------------------------- -- line 627 ---------------------------------------- . | hir::ItemKind::Struct(..) . | hir::ItemKind::Union(..) . | hir::ItemKind::Const(..) . | hir::ItemKind::Static(..) => {} . . _ => return, . }; . 162 ( 0.00%) let (article, desc) = cx.tcx.article_and_description(it.def_id.to_def_id()); . 108 ( 0.00%) self.check_missing_docs_attrs(cx, it.def_id, it.span, article, desc); 364 ( 0.00%) } . . fn check_trait_item(&mut self, cx: &LateContext<'_>, trait_item: &hir::TraitItem<'_>) { . if self.private_traits.contains(&trait_item.hir_id()) { . return; . } . . let (article, desc) = cx.tcx.article_and_description(trait_item.def_id.to_def_id()); . . self.check_missing_docs_attrs(cx, trait_item.def_id, trait_item.span, article, desc); . } . 210 ( 0.00%) fn check_impl_item(&mut self, cx: &LateContext<'_>, impl_item: &hir::ImplItem<'_>) { . // If the method is an impl for a trait, don't doc. 126 ( 0.00%) if method_context(cx, impl_item.hir_id()) == MethodLateContext::TraitImpl { . return; . } . . // If the method is an impl for an item with docs_hidden, don't doc. 10 ( 0.00%) if method_context(cx, impl_item.hir_id()) == MethodLateContext::PlainImpl { 12 ( 0.00%) let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id()); 2 ( 0.00%) let impl_ty = cx.tcx.type_of(parent); 10 ( 0.00%) let outerdef = match impl_ty.kind() { 8 ( 0.00%) ty::Adt(def, _) => Some(def.did), . ty::Foreign(def_id) => Some(*def_id), . _ => None, . }; . let is_hidden = match outerdef { 4 ( 0.00%) Some(id) => cx.tcx.is_doc_hidden(id), . None => false, . }; 4 ( 0.00%) if is_hidden { . return; . } . } . 16 ( 0.00%) let (article, desc) = cx.tcx.article_and_description(impl_item.def_id.to_def_id()); 12 ( 0.00%) self.check_missing_docs_attrs(cx, impl_item.def_id, impl_item.span, article, desc); 168 ( 0.00%) } . . fn check_foreign_item(&mut self, cx: &LateContext<'_>, foreign_item: &hir::ForeignItem<'_>) { . let (article, desc) = cx.tcx.article_and_description(foreign_item.def_id.to_def_id()); . self.check_missing_docs_attrs(cx, foreign_item.def_id, foreign_item.span, article, desc); . } . . fn check_field_def(&mut self, cx: &LateContext<'_>, sf: &hir::FieldDef<'_>) { 20 ( 0.00%) if !sf.is_positional() { 18 ( 0.00%) let def_id = cx.tcx.hir().local_def_id(sf.hir_id); 33 ( 0.00%) self.check_missing_docs_attrs(cx, def_id, sf.span, "a", "struct field") . } . } . . fn check_variant(&mut self, cx: &LateContext<'_>, v: &hir::Variant<'_>) { 119 ( 0.00%) self.check_missing_docs_attrs(cx, cx.tcx.hir().local_def_id(v.id), v.span, "a", "variant"); . } . } . . declare_lint! { . /// The `missing_copy_implementations` lint detects potentially-forgotten . /// implementations of [`Copy`]. . /// . /// [`Copy`]: https://doc.rust-lang.org/std/marker/trait.Copy.html -- line 699 ---------------------------------------- -- line 724 ---------------------------------------- . pub MISSING_COPY_IMPLEMENTATIONS, . Allow, . "detects potentially-forgotten implementations of `Copy`" . } . . declare_lint_pass!(MissingCopyImplementations => [MISSING_COPY_IMPLEMENTATIONS]); . . impl<'tcx> LateLintPass<'tcx> for MissingCopyImplementations { 468 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'_>, item: &hir::Item<'_>) { 253 ( 0.00%) if !cx.access_levels.is_reachable(item.def_id) { . return; . } 303 ( 0.00%) let (def, ty) = match item.kind { . hir::ItemKind::Struct(_, ref ast_generics) => { 2 ( 0.00%) if !ast_generics.params.is_empty() { . return; . } 2 ( 0.00%) let def = cx.tcx.adt_def(item.def_id); . (def, cx.tcx.mk_adt(def, cx.tcx.intern_substs(&[]))) . } . hir::ItemKind::Union(_, ref ast_generics) => { . if !ast_generics.params.is_empty() { . return; . } . let def = cx.tcx.adt_def(item.def_id); . (def, cx.tcx.mk_adt(def, cx.tcx.intern_substs(&[]))) . } . hir::ItemKind::Enum(_, ref ast_generics) => { 2 ( 0.00%) if !ast_generics.params.is_empty() { . return; . } 2 ( 0.00%) let def = cx.tcx.adt_def(item.def_id); . (def, cx.tcx.mk_adt(def, cx.tcx.intern_substs(&[]))) . } . _ => return, . }; 20 ( 0.00%) if def.has_dtor(cx.tcx) { . return; . } . let param_env = ty::ParamEnv::empty(); 36 ( 0.00%) if ty.is_copy_modulo_regions(cx.tcx.at(item.span), param_env) { . return; . } 21 ( 0.00%) if can_type_implement_copy(cx.tcx, param_env, ty).is_ok() { 8 ( 0.00%) cx.struct_span_lint(MISSING_COPY_IMPLEMENTATIONS, item.span, |lint| { . lint.build( . "type could implement `Copy`; consider adding `impl \ . Copy`", . ) . .emit() . }) . } 416 ( 0.00%) } . } . . declare_lint! { . /// The `missing_debug_implementations` lint detects missing . /// implementations of [`fmt::Debug`]. . /// . /// [`fmt::Debug`]: https://doc.rust-lang.org/std/fmt/trait.Debug.html . /// -- line 784 ---------------------------------------- -- line 811 ---------------------------------------- . #[derive(Default)] . pub struct MissingDebugImplementations { . impling_types: Option, . } . . impl_lint_pass!(MissingDebugImplementations => [MISSING_DEBUG_IMPLEMENTATIONS]); . . impl<'tcx> LateLintPass<'tcx> for MissingDebugImplementations { 364 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'_>, item: &hir::Item<'_>) { 253 ( 0.00%) if !cx.access_levels.is_reachable(item.def_id) { . return; . } . 180 ( 0.00%) match item.kind { . hir::ItemKind::Struct(..) | hir::ItemKind::Union(..) | hir::ItemKind::Enum(..) => {} . _ => return, . } . 28 ( 0.00%) let Some(debug) = cx.tcx.get_diagnostic_item(sym::Debug) else { . return . }; . 4 ( 0.00%) if self.impling_types.is_none() { . let mut impls = LocalDefIdSet::default(); 9,000 ( 0.00%) cx.tcx.for_each_impl(debug, |d| { 6,193 ( 0.00%) if let Some(ty_def) = cx.tcx.type_of(d).ty_adt_def() { 1,174 ( 0.00%) if let Some(def_id) = ty_def.did.as_local() { 5 ( 0.00%) impls.insert(def_id); . } . } 10,280 ( 0.01%) }); . 4 ( 0.00%) self.impling_types = Some(impls); . debug!("{:?}", self.impling_types); . } . 8 ( 0.00%) if !self.impling_types.as_ref().unwrap().contains(&item.def_id) { . cx.struct_span_lint(MISSING_DEBUG_IMPLEMENTATIONS, item.span, |lint| { . lint.build(&format!( . "type does not implement `{}`; consider adding `#[derive(Debug)]` \ . or a manual implementation", . cx.tcx.def_path_str(debug) . )) . .emit() . }); . } 260 ( 0.00%) } . } . . declare_lint! { . /// The `anonymous_parameters` lint detects anonymous parameters in trait . /// definitions. . /// . /// ### Example . /// -- line 865 ---------------------------------------- -- line 956 ---------------------------------------- . // compute it for every attribute. . depr_attrs: Vec<&'static BuiltinAttribute>, . } . . impl_lint_pass!(DeprecatedAttr => []); . . impl DeprecatedAttr { . pub fn new() -> DeprecatedAttr { 1 ( 0.00%) DeprecatedAttr { depr_attrs: deprecated_attributes() } . } . } . . fn lint_deprecated_attr( . cx: &EarlyContext<'_>, . attr: &ast::Attribute, . msg: &str, . suggestion: Option<&str>, -- line 972 ---------------------------------------- -- line 979 ---------------------------------------- . String::new(), . Applicability::MachineApplicable, . ) . .emit(); . }) . } . . impl EarlyLintPass for DeprecatedAttr { 747 ( 0.00%) fn check_attribute(&mut self, cx: &EarlyContext<'_>, attr: &ast::Attribute) { 415 ( 0.00%) for BuiltinAttribute { name, gate, .. } in &self.depr_attrs { 464 ( 0.00%) if attr.ident().map(|ident| ident.name) == Some(*name) { . if let &AttributeGate::Gated( . Stability::Deprecated(link, suggestion), . name, . reason, . _, . ) = gate . { . let msg = . format!("use of deprecated attribute `{}`: {}. See {}", name, reason, link); . lint_deprecated_attr(cx, attr, &msg, suggestion); . } . return; . } . } 264 ( 0.00%) if attr.has_name(sym::no_start) || attr.has_name(sym::crate_id) { . let path_str = pprust::path_to_string(&attr.get_normal_item().path); . let msg = format!("use of deprecated attribute `{}`: no longer used.", path_str); . lint_deprecated_attr(cx, attr, &msg, None); . } 664 ( 0.00%) } . } . 4,776 ( 0.00%) fn warn_if_doc(cx: &EarlyContext<'_>, node_span: Span, node_kind: &str, attrs: &[ast::Attribute]) { . use rustc_ast::token::CommentKind; . . let mut attrs = attrs.iter().peekable(); . . // Accumulate a single span for sugared doc comments. . let mut sugared_span: Option = None; . . while let Some(attr) = attrs.next() { -- line 1020 ---------------------------------------- -- line 1044 ---------------------------------------- . AttrKind::DocComment(CommentKind::Block, _) => { . err.help("use `/* */` for a plain comment"); . } . } . err.emit(); . }); . } . } 3,184 ( 0.00%) } . . impl EarlyLintPass for UnusedDocComment { . fn check_stmt(&mut self, cx: &EarlyContext<'_>, stmt: &ast::Stmt) { 149 ( 0.00%) let kind = match stmt.kind { . ast::StmtKind::Local(..) => "statements", . // Disabled pending discussion in #78306 . ast::StmtKind::Item(..) => return, . // expressions will be reported by `check_expr`. . ast::StmtKind::Empty . | ast::StmtKind::Semi(_) . | ast::StmtKind::Expr(_) . | ast::StmtKind::MacCall(_) => return, . }; . 210 ( 0.00%) warn_if_doc(cx, stmt.span, kind, stmt.kind.attrs()); . } . 189 ( 0.00%) fn check_arm(&mut self, cx: &EarlyContext<'_>, arm: &ast::Arm) { 189 ( 0.00%) let arm_span = arm.pat.span.with_hi(arm.body.span.hi()); 270 ( 0.00%) warn_if_doc(cx, arm_span, "match arms", &arm.attrs); . } . . fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &ast::Expr) { 2,840 ( 0.00%) warn_if_doc(cx, expr.span, "expressions", &expr.attrs); . } . . fn check_generic_param(&mut self, cx: &EarlyContext<'_>, param: &ast::GenericParam) { 8 ( 0.00%) warn_if_doc(cx, param.ident.span, "generic parameters", ¶m.attrs); . } . } . . declare_lint! { . /// The `no_mangle_const_items` lint detects any `const` items with the . /// [`no_mangle` attribute]. . /// . /// [`no_mangle` attribute]: https://doc.rust-lang.org/reference/abi.html#the-no_mangle-attribute -- line 1088 ---------------------------------------- -- line 1133 ---------------------------------------- . NO_MANGLE_GENERIC_ITEMS, . Warn, . "generic items must be mangled" . } . . declare_lint_pass!(InvalidNoMangleItems => [NO_MANGLE_CONST_ITEMS, NO_MANGLE_GENERIC_ITEMS]); . . impl<'tcx> LateLintPass<'tcx> for InvalidNoMangleItems { 468 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'_>, it: &hir::Item<'_>) { 364 ( 0.00%) let attrs = cx.tcx.hir().attrs(it.hir_id()); . let check_no_mangle_on_generic_fn = |no_mangle_attr: &ast::Attribute, . impl_generics: Option<&hir::Generics<'_>>, . generics: &hir::Generics<'_>, . span| { . for param in . generics.params.iter().chain(impl_generics.map(|g| g.params).into_iter().flatten()) . { . match param.kind { -- line 1150 ---------------------------------------- -- line 1162 ---------------------------------------- . ) . .emit(); . }); . break; . } . } . } . }; 364 ( 0.00%) match it.kind { . hir::ItemKind::Fn(.., ref generics, _) => { . if let Some(no_mangle_attr) = cx.sess().find_by_name(attrs, sym::no_mangle) { . check_no_mangle_on_generic_fn(no_mangle_attr, None, generics, it.span); . } . } . hir::ItemKind::Const(..) => { . if cx.sess().contains_name(attrs, sym::no_mangle) { . // Const items do not refer to a particular location in memory, and therefore -- line 1178 ---------------------------------------- -- line 1196 ---------------------------------------- . "try a static value", . "pub static".to_owned(), . Applicability::MachineApplicable, . ); . err.emit(); . }); . } . } 25 ( 0.00%) hir::ItemKind::Impl(hir::Impl { ref generics, items, .. }) => { . for it in items { 86 ( 0.00%) if let hir::AssocItemKind::Fn { .. } = it.kind { 126 ( 0.00%) if let Some(no_mangle_attr) = cx . .sess() 105 ( 0.00%) .find_by_name(cx.tcx.hir().attrs(it.id.hir_id()), sym::no_mangle) . { . check_no_mangle_on_generic_fn( . no_mangle_attr, . Some(generics), . cx.tcx.hir().get_generics(it.id.def_id).unwrap(), . it.span, . ); . } . } . } . } . _ => {} . } 416 ( 0.00%) } . } . . declare_lint! { . /// The `mutable_transmutes` lint catches transmuting from `&T` to `&mut . /// T` because it is [undefined behavior]. . /// . /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html . /// -- line 1231 ---------------------------------------- -- line 1248 ---------------------------------------- . MUTABLE_TRANSMUTES, . Deny, . "transmuting &T to &mut T is undefined behavior, even if the reference is unused" . } . . declare_lint_pass!(MutableTransmutes => [MUTABLE_TRANSMUTES]); . . impl<'tcx> LateLintPass<'tcx> for MutableTransmutes { 2,632 ( 0.00%) fn check_expr(&mut self, cx: &LateContext<'_>, expr: &hir::Expr<'_>) { . use rustc_target::spec::abi::Abi::RustIntrinsic; . if let Some((&ty::Ref(_, _, from_mt), &ty::Ref(_, _, to_mt))) = . get_transmute_from_to(cx, expr).map(|(ty1, ty2)| (ty1.kind(), ty2.kind())) . { . if to_mt == hir::Mutability::Mut && from_mt == hir::Mutability::Not { . let msg = "transmuting &T to &mut T is undefined behavior, \ . even if the reference is unused, consider instead using an UnsafeCell"; . cx.struct_span_lint(MUTABLE_TRANSMUTES, expr.span, |lint| lint.build(msg).emit()); . } . } . . fn get_transmute_from_to<'tcx>( . cx: &LateContext<'tcx>, . expr: &hir::Expr<'_>, . ) -> Option<(Ty<'tcx>, Ty<'tcx>)> { 881 ( 0.00%) let def = if let hir::ExprKind::Path(ref qpath) = expr.kind { 516 ( 0.00%) cx.qpath_res(qpath, expr.hir_id) . } else { . return None; . }; 382 ( 0.00%) if let Res::Def(DefKind::Fn, did) = def { 5 ( 0.00%) if !def_id_is_transmute(cx, did) { . return None; . } . let sig = cx.typeck_results().node_type(expr.hir_id).fn_sig(cx.tcx); . let from = sig.inputs().skip_binder()[0]; . let to = sig.output().skip_binder(); . return Some((from, to)); . } . None . } . . fn def_id_is_transmute(cx: &LateContext<'_>, def_id: DefId) -> bool { 15 ( 0.00%) cx.tcx.fn_sig(def_id).abi() == RustIntrinsic 20 ( 0.00%) && cx.tcx.item_name(def_id) == sym::transmute . } 3,008 ( 0.00%) } . } . . declare_lint! { . /// The `unstable_features` is deprecated and should no longer be used. . UNSTABLE_FEATURES, . Allow, . "enabling unstable features (deprecated. do not use)" . } . . declare_lint_pass!( . /// Forbids using the `#[feature(...)]` attribute . UnstableFeatures => [UNSTABLE_FEATURES] . ); . . impl<'tcx> LateLintPass<'tcx> for UnstableFeatures { 616 ( 0.00%) fn check_attribute(&mut self, cx: &LateContext<'_>, attr: &ast::Attribute) { 66 ( 0.00%) if attr.has_name(sym::feature) { . if let Some(items) = attr.meta_item_list() { . for item in items { . cx.struct_span_lint(UNSTABLE_FEATURES, item.span(), |lint| { . lint.build("unstable feature").emit() . }); . } . } . } 704 ( 0.00%) } . } . . declare_lint! { . /// The `unreachable_pub` lint triggers for `pub` items not reachable from . /// the crate root. . /// . /// ### Example . /// -- line 1327 ---------------------------------------- -- line 1352 ---------------------------------------- . } . . declare_lint_pass!( . /// Lint for items marked `pub` that aren't reachable from other crates. . UnreachablePub => [UNREACHABLE_PUB] . ); . . impl UnreachablePub { 624 ( 0.00%) fn perform_lint( . &self, . cx: &LateContext<'_>, . what: &str, . def_id: LocalDefId, . vis: &hir::Visibility<'_>, . span: Span, . exportable: bool, . ) { 78 ( 0.00%) let mut applicability = Applicability::MachineApplicable; 156 ( 0.00%) match vis.node { 48 ( 0.00%) hir::VisibilityKind::Public if !cx.access_levels.is_reachable(def_id) => { . if span.from_expansion() { . applicability = Applicability::MaybeIncorrect; . } . let def_span = cx.tcx.sess.source_map().guess_head_span(span); . cx.struct_span_lint(UNREACHABLE_PUB, def_span, |lint| { . let mut err = lint.build(&format!("unreachable `pub` {}", what)); . let replacement = if cx.tcx.features().crate_visibility_modifier { . "crate" -- line 1379 ---------------------------------------- -- line 1391 ---------------------------------------- . if exportable { . err.help("or consider exporting it for use by other crates"); . } . err.emit(); . }); . } . _ => {} . } 390 ( 0.00%) } . } . . impl<'tcx> LateLintPass<'tcx> for UnreachablePub { . fn check_item(&mut self, cx: &LateContext<'_>, item: &hir::Item<'_>) { 416 ( 0.00%) self.perform_lint(cx, "item", item.def_id, &item.vis, item.span, true); . } . . fn check_foreign_item(&mut self, cx: &LateContext<'_>, foreign_item: &hir::ForeignItem<'tcx>) { . self.perform_lint( . cx, . "item", . foreign_item.def_id, . &foreign_item.vis, . foreign_item.span, . true, . ); . } . . fn check_field_def(&mut self, cx: &LateContext<'_>, field: &hir::FieldDef<'_>) { 25 ( 0.00%) let def_id = cx.tcx.hir().local_def_id(field.hir_id); 40 ( 0.00%) self.perform_lint(cx, "field", def_id, &field.vis, field.span, false); . } . . fn check_impl_item(&mut self, cx: &LateContext<'_>, impl_item: &hir::ImplItem<'_>) { 210 ( 0.00%) self.perform_lint(cx, "item", impl_item.def_id, &impl_item.vis, impl_item.span, false); . } . } . . declare_lint! { . /// The `type_alias_bounds` lint detects bounds in type aliases. . /// . /// ### Example . /// -- line 1432 ---------------------------------------- -- line 1493 ---------------------------------------- . . // Let's go for a walk! . let mut visitor = WalkAssocTypes { err }; . visitor.visit_ty(ty); . } . } . . impl<'tcx> LateLintPass<'tcx> for TypeAliasBounds { 364 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'_>, item: &hir::Item<'_>) { 104 ( 0.00%) let hir::ItemKind::TyAlias(ty, type_alias_generics) = &item.kind else { . return . }; . if let hir::TyKind::OpaqueDef(..) = ty.kind { . // Bounds are respected for `type X = impl Trait` . return; . } . let mut suggested_changing_assoc_types = false; . // There must not be a where clause -- line 1510 ---------------------------------------- -- line 1554 ---------------------------------------- . if !suggested_changing_assoc_types { . TypeAliasBounds::suggest_changing_assoc_types(ty, &mut err); . suggested_changing_assoc_types = true; . } . err.emit(); . }); . } . } 416 ( 0.00%) } . } . . declare_lint_pass!( . /// Lint constants that are erroneous. . /// Without this lint, we might not get any diagnostic if the constant is . /// unused within this crate, even though downstream crates can't use it . /// without producing an error. . UnusedBrokenConst => [] . ); . . impl<'tcx> LateLintPass<'tcx> for UnusedBrokenConst { . fn check_item(&mut self, cx: &LateContext<'_>, it: &hir::Item<'_>) { 260 ( 0.00%) match it.kind { . hir::ItemKind::Const(_, body_id) => { . let def_id = cx.tcx.hir().body_owner_def_id(body_id).to_def_id(); . // trigger the query once for all constants since that will already report the errors . // FIXME: Use ensure here . let _ = cx.tcx.const_eval_poly(def_id); . } . hir::ItemKind::Static(_, _, body_id) => { . let def_id = cx.tcx.hir().body_owner_def_id(body_id).to_def_id(); -- line 1583 ---------------------------------------- -- line 1626 ---------------------------------------- . . declare_lint_pass!( . /// Lint for trait and lifetime bounds that don't depend on type parameters . /// which either do nothing, or stop the item from being used. . TrivialConstraints => [TRIVIAL_BOUNDS] . ); . . impl<'tcx> LateLintPass<'tcx> for TrivialConstraints { 468 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'tcx>) { . use rustc_middle::ty::fold::TypeFoldable; . use rustc_middle::ty::PredicateKind::*; . 208 ( 0.00%) if cx.tcx.features().trivial_bounds { . let predicates = cx.tcx.predicates_of(item.def_id); . for &(predicate, span) in predicates.predicates { . let predicate_kind_name = match predicate.kind().skip_binder() { . Trait(..) => "trait", . TypeOutlives(..) | . RegionOutlives(..) => "lifetime", . . // Ignore projections, as they can only be global -- line 1646 ---------------------------------------- -- line 1663 ---------------------------------------- . or lifetime parameters", . predicate_kind_name, predicate . )) . .emit() . }); . } . } . } 416 ( 0.00%) } . } . . declare_lint_pass!( . /// Does nothing as a lint pass, but registers some `Lint`s . /// which are used by other parts of the compiler. . SoftLints => [ . WHILE_TRUE, . BOX_POINTERS, -- line 1679 ---------------------------------------- -- line 1732 ---------------------------------------- . /// If `Some(_)`, suppress all subsequent pattern . /// warnings for better diagnostics. . node_id: Option, . } . . impl_lint_pass!(EllipsisInclusiveRangePatterns => [ELLIPSIS_INCLUSIVE_RANGE_PATTERNS]); . . impl EarlyLintPass for EllipsisInclusiveRangePatterns { 707 ( 0.00%) fn check_pat(&mut self, cx: &EarlyContext<'_>, pat: &ast::Pat) { 101 ( 0.00%) if self.node_id.is_some() { . // Don't recursively warn about patterns inside range endpoints. . return; . } . . use self::ast::{PatKind, RangeSyntax::DotDotDot}; . . /// If `pat` is a `...` pattern, return the start and end of the range, as well as the span . /// corresponding to the ellipsis. . fn matches_ellipsis_pat(pat: &ast::Pat) -> Option<(Option<&Expr>, &Expr, Span)> { 202 ( 0.00%) match &pat.kind { . PatKind::Range( . a, . Some(b), . Spanned { span, node: RangeEnd::Included(DotDotDot) }, . ) => Some((a.as_deref(), b, *span)), . _ => None, . } . } . 303 ( 0.00%) let (parenthesise, endpoints) = match &pat.kind { . PatKind::Ref(subpat, _) => (true, matches_ellipsis_pat(&subpat)), . _ => (false, matches_ellipsis_pat(pat)), . }; . . if let Some((start, end, join)) = endpoints { . let msg = "`...` range patterns are deprecated"; . let suggestion = "use `..=` for an inclusive range"; . if parenthesise { -- line 1769 ---------------------------------------- -- line 1816 ---------------------------------------- . replace, . Applicability::MachineApplicable, . ) . .emit(); . }); . } . }; . } 808 ( 0.00%) } . . fn check_pat_post(&mut self, _cx: &EarlyContext<'_>, pat: &ast::Pat) { 303 ( 0.00%) if let Some(node_id) = self.node_id { . if pat.id == node_id { . self.node_id = None . } . } . } . } . . declare_lint! { -- line 1835 ---------------------------------------- -- line 1880 ---------------------------------------- . . impl UnnameableTestItems { . pub fn new() -> Self { . Self { boundary: None, items_nameable: true } . } . } . . impl<'tcx> LateLintPass<'tcx> for UnnameableTestItems { 260 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'_>, it: &hir::Item<'_>) { 104 ( 0.00%) if self.items_nameable { 104 ( 0.00%) if let hir::ItemKind::Mod(..) = it.kind { . } else { 51 ( 0.00%) self.items_nameable = false; 153 ( 0.00%) self.boundary = Some(it.def_id); . } . return; . } . . let attrs = cx.tcx.hir().attrs(it.hir_id()); . if let Some(attr) = cx.sess().find_by_name(attrs, sym::rustc_test_marker) { . cx.struct_span_lint(UNNAMEABLE_TEST_ITEMS, attr.span, |lint| { . lint.build("cannot test inner items").emit() . }); . } 312 ( 0.00%) } . . fn check_item_post(&mut self, _cx: &LateContext<'_>, it: &hir::Item<'_>) { 308 ( 0.00%) if !self.items_nameable && self.boundary == Some(it.def_id) { 51 ( 0.00%) self.items_nameable = true; . } . } . } . . declare_lint! { . /// The `keyword_idents` lint detects edition keywords being used as an . /// identifier. . /// -- line 1916 ---------------------------------------- -- line 1958 ---------------------------------------- . declare_lint_pass!( . /// Check for uses of edition keywords used as an identifier. . KeywordIdents => [KEYWORD_IDENTS] . ); . . struct UnderMacro(bool); . . impl KeywordIdents { 9,880 ( 0.00%) fn check_tokens(&mut self, cx: &EarlyContext<'_>, tokens: TokenStream) { 122,907 ( 0.06%) for tt in tokens.into_trees() { 18,754 ( 0.01%) match tt { . // Only report non-raw idents. 32,656 ( 0.02%) TokenTree::Token(token) => { 45,151 ( 0.02%) if let Some((ident, false)) = token.ident() { 16,660 ( 0.01%) self.check_ident_token(cx, UnderMacro(true), ident); . } . } 2,426 ( 0.00%) TokenTree::Delimited(_, _, tts) => self.check_tokens(cx, tts), . } . } 9,880 ( 0.00%) } . 53,172 ( 0.03%) fn check_ident_token( . &mut self, . cx: &EarlyContext<'_>, . UnderMacro(under_macro): UnderMacro, . ident: Ident, . ) { 17,724 ( 0.01%) let next_edition = match cx.sess().edition() { . Edition::Edition2015 => { . match ident.name { . kw::Async | kw::Await | kw::Try => Edition::Edition2018, . . // rust-lang/rust#56327: Conservatively do not . // attempt to report occurrences of `dyn` within . // macro definitions or invocations, because `dyn` . // can legitimately occur as a contextual keyword -- line 1994 ---------------------------------------- -- line 2020 ---------------------------------------- . .span_suggestion( . ident.span, . "you can use a raw identifier to stay compatible", . format!("r#{}", ident), . Applicability::MachineApplicable, . ) . .emit() . }); 31,017 ( 0.02%) } . } . . impl EarlyLintPass for KeywordIdents { . fn check_mac_def(&mut self, cx: &EarlyContext<'_>, mac_def: &ast::MacroDef, _id: ast::NodeId) { 70 ( 0.00%) self.check_tokens(cx, mac_def.body.inner_tokens()); . } . fn check_mac(&mut self, cx: &EarlyContext<'_>, mac: &ast::MacCall) { 40 ( 0.00%) self.check_tokens(cx, mac.args.inner_tokens()); . } . fn check_ident(&mut self, cx: &EarlyContext<'_>, ident: Ident) { 532 ( 0.00%) self.check_ident_token(cx, UnderMacro(false), ident); . } . } . 2 ( 0.00%) declare_lint_pass!(ExplicitOutlivesRequirements => [EXPLICIT_OUTLIVES_REQUIREMENTS]); . . impl ExplicitOutlivesRequirements { . fn lifetimes_outliving_lifetime<'tcx>( . inferred_outlives: &'tcx [(ty::Predicate<'tcx>, Span)], . index: u32, . ) -> Vec> { . inferred_outlives . .iter() -- line 2051 ---------------------------------------- -- line 2179 ---------------------------------------- . } . } . merged . } . } . } . . impl<'tcx> LateLintPass<'tcx> for ExplicitOutlivesRequirements { 468 ( 0.00%) fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>) { . use rustc_middle::middle::resolve_lifetime::Region; . 208 ( 0.00%) let infer_static = cx.tcx.features().infer_static_outlives_requirements; 52 ( 0.00%) let def_id = item.def_id; 360 ( 0.00%) if let hir::ItemKind::Struct(_, ref hir_generics) 6 ( 0.00%) | hir::ItemKind::Enum(_, ref hir_generics) . | hir::ItemKind::Union(_, ref hir_generics) = item.kind . { 5 ( 0.00%) let inferred_outlives = cx.tcx.inferred_outlives_of(def_id); 10 ( 0.00%) if inferred_outlives.is_empty() { . return; . } . . let ty_generics = cx.tcx.generics_of(def_id); . . let mut bound_count = 0; . let mut lint_spans = Vec::new(); . -- line 2205 ---------------------------------------- -- line 2338 ---------------------------------------- . .map(|span| (span, "".to_owned())) . .collect::>(), . Applicability::MachineApplicable, . ) . .emit(); . }); . } . } 416 ( 0.00%) } . } . . declare_lint! { . /// The `incomplete_features` lint detects unstable features enabled with . /// the [`feature` attribute] that may function improperly in some or all . /// cases. . /// . /// [`feature` attribute]: https://doc.rust-lang.org/nightly/unstable-book/ -- line 2354 ---------------------------------------- -- line 2448 ---------------------------------------- . pub INVALID_VALUE, . Warn, . "an invalid value is being created (such as a null reference)" . } . . declare_lint_pass!(InvalidValue => [INVALID_VALUE]); . . impl<'tcx> LateLintPass<'tcx> for InvalidValue { 2,632 ( 0.00%) fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &hir::Expr<'_>) { . #[derive(Debug, Copy, Clone, PartialEq)] . enum InitKind { . Zeroed, . Uninit, . } . . /// Information about why a type cannot be initialized this way. . /// Contains an error message and optionally a span to point at. -- line 2464 ---------------------------------------- -- line 2478 ---------------------------------------- . } . Tup(tup) => tup.iter().all(is_zero), . _ => false, . } . } . . /// Determine if this expression is a "dangerous initialization". . fn is_dangerous_init(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> Option { 1,864 ( 0.00%) if let hir::ExprKind::Call(ref path_expr, ref args) = expr.kind { . // Find calls to `mem::{uninitialized,zeroed}` methods. 176 ( 0.00%) if let hir::ExprKind::Path(ref qpath) = path_expr.kind { 396 ( 0.00%) let def_id = cx.qpath_res(qpath, path_expr.hir_id).opt_def_id()?; 352 ( 0.00%) match cx.tcx.get_diagnostic_name(def_id) { . Some(sym::mem_zeroed) => return Some(InitKind::Zeroed), . Some(sym::mem_uninitialized) => return Some(InitKind::Uninit), . Some(sym::transmute) if is_zero(&args[0]) => return Some(InitKind::Zeroed), . _ => {} . } . } . } else if let hir::ExprKind::MethodCall(_, ref args, _) = expr.kind { . // Find problematic calls to `MaybeUninit::assume_init`. 40 ( 0.00%) let def_id = cx.typeck_results().type_dependent_def_id(expr.hir_id)?; 48 ( 0.00%) if cx.tcx.is_diagnostic_item(sym::assume_init, def_id) { . // This is a call to *some* method named `assume_init`. . // See if the `self` parameter is one of the dangerous constructors. . if let hir::ExprKind::Call(ref path_expr, _) = args[0].kind { . if let hir::ExprKind::Path(ref qpath) = path_expr.kind { . let def_id = cx.qpath_res(qpath, path_expr.hir_id).opt_def_id()?; . match cx.tcx.get_diagnostic_name(def_id) { . Some(sym::maybe_uninit_zeroed) => return Some(InitKind::Zeroed), . Some(sym::maybe_uninit_uninit) => return Some(InitKind::Uninit), -- line 2508 ---------------------------------------- -- line 2655 ---------------------------------------- . err.span_note(span, &msg); . } else { . err.note(&msg); . } . err.emit(); . }); . } . } 2,256 ( 0.00%) } . } . . declare_lint! { . /// The `clashing_extern_declarations` lint detects when an `extern fn` . /// has been declared with the same name but different types. . /// . /// ### Example . /// -- line 2671 ---------------------------------------- -- line 3078 ---------------------------------------- . pub DEREF_NULLPTR, . Warn, . "detects when an null pointer is dereferenced" . } . . declare_lint_pass!(DerefNullPtr => [DEREF_NULLPTR]); . . impl<'tcx> LateLintPass<'tcx> for DerefNullPtr { 1,128 ( 0.00%) fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &hir::Expr<'_>) { . /// test if expression is a null ptr . fn is_null_ptr(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> bool { 120 ( 0.00%) match &expr.kind { . rustc_hir::ExprKind::Cast(ref expr, ref ty) => { . if let rustc_hir::TyKind::Ptr(_) = ty.kind { . return is_zero(expr) || is_null_ptr(cx, expr); . } . } . // check for call to `core::ptr::null` or `core::ptr::null_mut` . rustc_hir::ExprKind::Call(ref path, _) => { . if let rustc_hir::ExprKind::Path(ref qpath) = path.kind { -- line 3097 ---------------------------------------- -- line 3116 ---------------------------------------- . return a == 0; . } . } . _ => {} . } . false . } . 812 ( 0.00%) if let rustc_hir::ExprKind::Unary(rustc_hir::UnOp::Deref, expr_deref) = expr.kind { . if is_null_ptr(cx, expr_deref) { . cx.struct_span_lint(DEREF_NULLPTR, expr.span, |lint| { . let mut err = lint.build("dereferencing a null pointer"); . err.span_label(expr.span, "this code causes undefined behavior when executed"); . err.emit(); . }); . } . } 1,504 ( 0.00%) } . } . . declare_lint! { . /// The `named_asm_labels` lint detects the use of named labels in the . /// inline `asm!` macro. . /// . /// ### Example . /// -- line 3141 ---------------------------------------- -- line 3162 ---------------------------------------- . pub NAMED_ASM_LABELS, . Deny, . "named labels in inline assembly", . } . . declare_lint_pass!(NamedAsmLabels => [NAMED_ASM_LABELS]); . . impl<'tcx> LateLintPass<'tcx> for NamedAsmLabels { 2,632 ( 0.00%) fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) { 752 ( 0.00%) if let hir::Expr { . kind: hir::ExprKind::InlineAsm(hir::InlineAsm { template_strs, .. }), . .. . } = expr . { . for (template_sym, template_snippet, template_span) in template_strs.iter() { . let template_str = template_sym.as_str(); . let find_label_span = |needle: &str| -> Option { . if let Some(template_snippet) = template_snippet { -- line 3179 ---------------------------------------- -- line 3242 ---------------------------------------- . BuiltinLintDiagnostics::NamedAsmLabel( . "only local labels of the form `:` should be used in inline asm" . .to_string(), . ), . ); . } . } . } 3,008 ( 0.00%) } . } 7,312 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/mod.rs -------------------------------------------------------------------------------- Ir -- line 141 ---------------------------------------- . /// ``` . /// let a = [1, 2, 3]; . /// assert!(!a.is_empty()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_slice_is_empty", since = "1.39.0")] . #[inline] . pub const fn is_empty(&self) -> bool { 32,128 ( 0.02%) self.len() == 0 . } . . /// Returns the first element of the slice, or `None` if it is empty. . /// . /// # Examples . /// . /// ``` . /// let v = [10, 40, 30]; -- line 157 ---------------------------------------- -- line 159 ---------------------------------------- . /// . /// let w: &[i32] = &[]; . /// assert_eq!(None, w.first()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_slice_first_last_not_mut", since = "1.56.0")] . #[inline] . pub const fn first(&self) -> Option<&T> { 285 ( 0.00%) if let [first, ..] = self { Some(first) } else { None } . } . . /// Returns a mutable pointer to the first element of the slice, or `None` if it is empty. . /// . /// # Examples . /// . /// ``` . /// let x = &mut [0, 1, 2]; -- line 175 ---------------------------------------- -- line 178 ---------------------------------------- . /// *first = 5; . /// } . /// assert_eq!(x, &[5, 1, 2]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_unstable(feature = "const_slice_first_last", issue = "83570")] . #[inline] . pub const fn first_mut(&mut self) -> Option<&mut T> { 100 ( 0.00%) if let [first, ..] = self { Some(first) } else { None } . } . . /// Returns the first and all the rest of the elements of the slice, or `None` if it is empty. . /// . /// # Examples . /// . /// ``` . /// let x = &[0, 1, 2]; -- line 194 ---------------------------------------- -- line 237 ---------------------------------------- . /// assert_eq!(last, &2); . /// assert_eq!(elements, &[0, 1]); . /// } . /// ``` . #[stable(feature = "slice_splits", since = "1.5.0")] . #[rustc_const_stable(feature = "const_slice_first_last_not_mut", since = "1.56.0")] . #[inline] . pub const fn split_last(&self) -> Option<(&T, &[T])> { 1,089 ( 0.00%) if let [init @ .., last] = self { Some((last, init)) } else { None } . } . . /// Returns the last and all the rest of the elements of the slice, or `None` if it is empty. . /// . /// # Examples . /// . /// ``` . /// let x = &mut [0, 1, 2]; -- line 253 ---------------------------------------- -- line 276 ---------------------------------------- . /// . /// let w: &[i32] = &[]; . /// assert_eq!(None, w.last()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_slice_first_last_not_mut", since = "1.56.0")] . #[inline] . pub const fn last(&self) -> Option<&T> { 31,933 ( 0.02%) if let [.., last] = self { Some(last) } else { None } . } . . /// Returns a mutable pointer to the last item in the slice. . /// . /// # Examples . /// . /// ``` . /// let x = &mut [0, 1, 2]; -- line 292 ---------------------------------------- -- line 295 ---------------------------------------- . /// *last = 10; . /// } . /// assert_eq!(x, &[0, 1, 10]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_unstable(feature = "const_slice_first_last", issue = "83570")] . #[inline] . pub const fn last_mut(&mut self) -> Option<&mut T> { 23,603 ( 0.01%) if let [.., last] = self { Some(last) } else { None } . } . . /// Returns a reference to an element or subslice depending on the type of . /// index. . /// . /// - If given a position, returns a reference to the element at that . /// position or `None` if out of bounds. . /// - If given a range, returns the subslice corresponding to that range, -- line 311 ---------------------------------------- -- line 448 ---------------------------------------- . /// } . /// ``` . /// . /// [`as_mut_ptr`]: slice::as_mut_ptr . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_slice_as_ptr", since = "1.32.0")] . #[inline] . pub const fn as_ptr(&self) -> *const T { 28,259 ( 0.01%) self as *const [T] as *const T . } . . /// Returns an unsafe mutable pointer to the slice's buffer. . /// . /// The caller must ensure that the slice outlives the pointer this . /// function returns, or else it will end up pointing to garbage. . /// . /// Modifying the container referenced by this slice may cause its buffer -- line 464 ---------------------------------------- -- line 476 ---------------------------------------- . /// } . /// } . /// assert_eq!(x, &[3, 4, 6]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_unstable(feature = "const_ptr_offset", issue = "71499")] . #[inline] . pub const fn as_mut_ptr(&mut self) -> *mut T { 2 ( 0.00%) self as *mut [T] as *mut T . } . . /// Returns the two raw pointers spanning the slice. . /// . /// The returned range is half-open, which means that the end pointer . /// points *one past* the last element of the slice. This way, an empty . /// slice is represented by two equal pointers, and the difference between . /// the two pointers represents the size of the slice. -- line 492 ---------------------------------------- -- line 582 ---------------------------------------- . /// v.swap(2, 4); . /// assert!(v == ["a", "b", "e", "d", "c"]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_unstable(feature = "const_swap", issue = "83163")] . #[inline] . #[track_caller] . pub const fn swap(&mut self, a: usize, b: usize) { 112 ( 0.00%) let _ = &self[a]; 2,043 ( 0.00%) let _ = &self[b]; . . // SAFETY: we just checked that both `a` and `b` are in bounds . unsafe { self.swap_unchecked(a, b) } . } . . /// Swaps two elements in the slice, without doing bounds checking. . /// . /// For a safe alternative see [`swap`]. -- line 599 ---------------------------------------- -- line 677 ---------------------------------------- . . // Because this function is first compiled in isolation, . // this check tells LLVM that the indexing below is . // in-bounds. Then after inlining -- once the actual . // lengths of the slices are known -- it's removed. . let (a, b) = (&mut a[..n], &mut b[..n]); . . for i in 0..n { 178 ( 0.00%) mem::swap(&mut a[i], &mut b[n - 1 - i]); . } . } . } . . /// Returns an iterator over the slice. . /// . /// # Examples . /// -- line 693 ---------------------------------------- -- line 1499 ---------------------------------------- . /// assert_eq!(left, [1, 2, 3, 4, 5, 6]); . /// assert_eq!(right, []); . /// } . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] . #[track_caller] . pub fn split_at(&self, mid: usize) -> (&[T], &[T]) { 42 ( 0.00%) assert!(mid <= self.len()); . // SAFETY: `[ptr; mid]` and `[mid; len]` are inside `self`, which . // fulfills the requirements of `from_raw_parts_mut`. . unsafe { self.split_at_unchecked(mid) } . } . . /// Divides one mutable slice into two at an index. . /// . /// The first will contain all indices from `[0, mid)` (excluding -- line 1515 ---------------------------------------- -- line 1530 ---------------------------------------- . /// left[1] = 2; . /// right[1] = 4; . /// assert_eq!(v, [1, 2, 3, 4, 5, 6]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] . #[track_caller] . pub fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T]) { 4,206 ( 0.00%) assert!(mid <= self.len()); . // SAFETY: `[ptr; mid]` and `[mid; len]` are inside `self`, which . // fulfills the requirements of `from_raw_parts_mut`. . unsafe { self.split_at_mut_unchecked(mid) } . } . . /// Divides one slice into two at an index, without doing bounds checking. . /// . /// The first will contain all indices from `[0, mid)` (excluding -- line 1546 ---------------------------------------- -- line 1628 ---------------------------------------- . pub unsafe fn split_at_mut_unchecked(&mut self, mid: usize) -> (&mut [T], &mut [T]) { . let len = self.len(); . let ptr = self.as_mut_ptr(); . . // SAFETY: Caller has to check that `0 <= mid <= self.len()`. . // . // `[ptr; mid]` and `[mid; len]` are not overlapping, so returning a mutable reference . // is fine. 1,075 ( 0.00%) unsafe { (from_raw_parts_mut(ptr, mid), from_raw_parts_mut(ptr.add(mid), len - mid)) } . } . . /// Divides one slice into an array and a remainder slice at an index. . /// . /// The array will contain all indices from `[0, N)` (excluding . /// the index `N` itself) and the slice will contain all . /// indices from `[N, len)` (excluding the index `len` itself). . /// -- line 1644 ---------------------------------------- -- line 2113 ---------------------------------------- . /// assert!(!v.iter().any(|e| e == "hi")); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[inline] . pub fn contains(&self, x: &T) -> bool . where . T: PartialEq, . { 70 ( 0.00%) cmp::SliceContains::slice_contains(x, self) . } . . /// Returns `true` if `needle` is a prefix of the slice. . /// . /// # Examples . /// . /// ``` . /// let v = [10, 40, 30]; -- line 2129 ---------------------------------------- -- line 2142 ---------------------------------------- . /// assert!(v.starts_with(&[])); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . pub fn starts_with(&self, needle: &[T]) -> bool . where . T: PartialEq, . { . let n = needle.len(); 4,997 ( 0.00%) self.len() >= n && needle == &self[..n] . } . . /// Returns `true` if `needle` is a suffix of the slice. . /// . /// # Examples . /// . /// ``` . /// let v = [10, 40, 30]; -- line 2158 ---------------------------------------- -- line 2171 ---------------------------------------- . /// assert!(v.ends_with(&[])); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . pub fn ends_with(&self, needle: &[T]) -> bool . where . T: PartialEq, . { . let (m, n) = (self.len(), needle.len()); 2,810 ( 0.00%) m >= n && needle == &self[m - n..] . } . . /// Returns a subslice with the prefix removed. . /// . /// If the slice starts with `prefix`, returns the subslice after the prefix, wrapped in `Some`. . /// If `prefix` is empty, simply returns the original slice. . /// . /// If the slice does not start with `prefix`, returns `None`. -- line 2187 ---------------------------------------- -- line 2293 ---------------------------------------- . /// s.insert(idx, num); . /// assert_eq!(s, [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 42, 55]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . pub fn binary_search(&self, x: &T) -> Result . where . T: Ord, . { 3 ( 0.00%) self.binary_search_by(|p| p.cmp(x)) . } . . /// Binary searches this sorted slice with a comparator function. . /// . /// The comparator function should implement an order consistent . /// with the sort order of the underlying slice, returning an . /// order code that indicates whether its argument is `Less`, . /// `Equal` or `Greater` the desired target. -- line 2309 ---------------------------------------- -- line 2345 ---------------------------------------- . #[inline] . pub fn binary_search_by<'a, F>(&'a self, mut f: F) -> Result . where . F: FnMut(&'a T) -> Ordering, . { . let mut size = self.len(); . let mut left = 0; . let mut right = size; 160,252 ( 0.08%) while left < right { 243,483 ( 0.12%) let mid = left + size / 2; . . // SAFETY: the call is made safe by the following invariants: . // - `mid >= 0` . // - `mid < size`: `mid` is limited by `[left; right)` bound. 38,641 ( 0.02%) let cmp = f(unsafe { self.get_unchecked(mid) }); . . // The reason why we use if/else control flow rather than match . // is because match reorders comparison operations, which is perf sensitive. . // This is x86 asm for u8: https://rust.godbolt.org/z/8Y8Pra. 65,868 ( 0.03%) if cmp == Less { 150,614 ( 0.07%) left = mid + 1; 29,047 ( 0.01%) } else if cmp == Greater { . right = mid; . } else { . // SAFETY: same as the `get_unchecked` above . unsafe { crate::intrinsics::assume(mid < self.len()) }; . return Ok(mid); . } . 192,023 ( 0.09%) size = right - left; . } . Err(left) . } . . /// Binary searches this sorted slice with a key extraction function. . /// . /// Assumes that the slice is sorted by the key, for instance with . /// [`sort_by_key`] using the same key extraction function. -- line 2382 ---------------------------------------- -- line 3203 ---------------------------------------- . #[track_caller] . fn len_mismatch_fail(dst_len: usize, src_len: usize) -> ! { . panic!( . "source slice length ({}) does not match destination slice length ({})", . src_len, dst_len, . ); . } . 2,272 ( 0.00%) if self.len() != src.len() { . len_mismatch_fail(self.len(), src.len()); . } . . // SAFETY: `self` is valid for `self.len()` elements by definition, and `src` was . // checked to have the same length. The slices cannot overlap because . // mutable references are exclusive. . unsafe { . ptr::copy_nonoverlapping(src.as_ptr(), self.as_mut_ptr(), self.len()); -- line 3219 ---------------------------------------- -- line 3382 ---------------------------------------- . } . let gcd: usize = gcd(mem::size_of::(), mem::size_of::()); . let ts: usize = mem::size_of::() / gcd; . let us: usize = mem::size_of::() / gcd; . . // Armed with this knowledge, we can find how many `U`s we can fit! . let us_len = self.len() / ts * us; . // And how many `T`s will be in the trailing slice! 210 ( 0.00%) let ts_len = self.len() % ts; . (us_len, ts_len) . } . . /// Transmute the slice to a slice of another type, ensuring alignment of the types is . /// maintained. . /// . /// This method splits the slice into three distinct slices: prefix, correctly aligned middle . /// slice of a new type, and the suffix slice. The method may make the middle slice the greatest -- line 3398 ---------------------------------------- -- line 3429 ---------------------------------------- . return (self, &[], &[]); . } . . // First, find at what point do we split between the first and 2nd slice. Easy with . // ptr.align_offset. . let ptr = self.as_ptr(); . // SAFETY: See the `align_to_mut` method for the detailed safety comment. . let offset = unsafe { crate::ptr::align_offset(ptr, mem::align_of::()) }; 210 ( 0.00%) if offset > self.len() { . (self, &[], &[]) . } else { . let (left, rest) = self.split_at(offset); . let (us_len, ts_len) = rest.align_to_offsets::(); . // SAFETY: now `rest` is definitely aligned, so `from_raw_parts` below is okay, . // since the caller guarantees that we can transmute `T` to `U` safely. . unsafe { . ( . left, . from_raw_parts(rest.as_ptr() as *const U, us_len), 210 ( 0.00%) from_raw_parts(rest.as_ptr().add(rest.len() - ts_len), ts_len), . ) . } . } . } . . /// Transmute the slice to a slice of another type, ensuring alignment of the types is . /// maintained. . /// -- line 3456 ---------------------------------------- 121,518 ( 0.06%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_ast/src/token.rs -------------------------------------------------------------------------------- Ir -- line 12 ---------------------------------------- . use rustc_data_structures::sync::Lrc; . use rustc_macros::HashStable_Generic; . use rustc_span::symbol::{kw, sym}; . use rustc_span::symbol::{Ident, Symbol}; . use rustc_span::{self, edition::Edition, Span, DUMMY_SP}; . use std::borrow::Cow; . use std::{fmt, mem}; . 3,802 ( 0.00%) #[derive(Clone, Copy, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] . pub enum CommentKind { . Line, . Block, . } . 135 ( 0.00%) #[derive(Clone, PartialEq, Encodable, Decodable, Hash, Debug, Copy)] . #[derive(HashStable_Generic)] . pub enum BinOpToken { . Plus, . Minus, . Star, . Slash, . Percent, . Caret, . And, . Or, . Shl, . Shr, . } . . /// A delimiter token. 2,375 ( 0.00%) #[derive(Clone, PartialEq, Eq, Encodable, Decodable, Hash, Debug, Copy)] . #[derive(HashStable_Generic)] . pub enum DelimToken { . /// A round parenthesis (i.e., `(` or `)`). . Paren, . /// A square bracket (i.e., `[` or `]`). . Bracket, . /// A curly brace (i.e., `{` or `}`). . Brace, . /// An empty delimiter. . NoDelim, . } . 3,982 ( 0.00%) #[derive(Clone, Copy, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] . pub enum LitKind { . Bool, // AST only, must never appear in a `Token` . Byte, . Char, . Integer, . Float, . Str, . StrRaw(u16), // raw string delimited by `n` hash symbols . ByteStr, . ByteStrRaw(u16), // raw byte string delimited by `n` hash symbols . Err, . } . . /// A literal token. 8,514 ( 0.00%) #[derive(Clone, Copy, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] . pub struct Lit { . pub kind: LitKind, . pub symbol: Symbol, . pub suffix: Option, . } . . impl fmt::Display for Lit { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { -- line 78 ---------------------------------------- -- line 130 ---------------------------------------- . crate fn may_have_suffix(self) -> bool { . matches!(self, Integer | Float | Err) . } . } . . impl Lit { . pub fn new(kind: LitKind, symbol: Symbol, suffix: Option) -> Lit { . Lit { kind, symbol, suffix } 791 ( 0.00%) } . } . 36 ( 0.00%) pub fn ident_can_begin_expr(name: Symbol, span: Span, is_raw: bool) -> bool { 63 ( 0.00%) let ident_token = Token::new(Ident(name, is_raw), span); . 18 ( 0.00%) !ident_token.is_reserved_ident() . || ident_token.is_path_segment_keyword() . || [ . kw::Async, . kw::Do, . kw::Box, . kw::Break, . kw::Const, . kw::Continue, -- line 152 ---------------------------------------- -- line 161 ---------------------------------------- . kw::True, . kw::Try, . kw::Unsafe, . kw::While, . kw::Yield, . kw::Static, . ] . .contains(&name) 45 ( 0.00%) } . . fn ident_can_begin_type(name: Symbol, span: Span, is_raw: bool) -> bool { 24 ( 0.00%) let ident_token = Token::new(Ident(name, is_raw), span); . 8 ( 0.00%) !ident_token.is_reserved_ident() . || ident_token.is_path_segment_keyword() . || [kw::Underscore, kw::For, kw::Impl, kw::Fn, kw::Unsafe, kw::Extern, kw::Typeof, kw::Dyn] . .contains(&name) . } . 1,191,119 ( 0.58%) #[derive(Clone, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] . pub enum TokenKind { . /* Expression-operator symbols. */ . Eq, . Lt, . Le, . EqEq, . Ne, . Ge, . Gt, . AndAnd, . OrOr, . Not, . Tilde, 9,252 ( 0.00%) BinOp(BinOpToken), 378 ( 0.00%) BinOpEq(BinOpToken), . . /* Structural symbols */ . At, . Dot, . DotDot, . DotDotDot, . DotDotEq, . Comma, -- line 203 ---------------------------------------- -- line 208 ---------------------------------------- . LArrow, . FatArrow, . Pound, . Dollar, . Question, . /// Used by proc macros for representing lifetimes, not generated by lexer right now. . SingleQuote, . /// An opening delimiter (e.g., `{`). 2,070 ( 0.00%) OpenDelim(DelimToken), . /// A closing delimiter (e.g., `}`). 405 ( 0.00%) CloseDelim(DelimToken), . . /* Literals */ 7,261 ( 0.00%) Literal(Lit), . . /// Identifier token. . /// Do not forget about `NtIdent` when you want to match on identifiers. . /// It's recommended to use `Token::(ident,uninterpolate,uninterpolated_span)` to . /// treat regular and interpolated identifiers in the same way. 29,993 ( 0.01%) Ident(Symbol, /* is_raw */ bool), . /// Lifetime identifier token. . /// Do not forget about `NtLifetime` when you want to match on lifetime identifiers. . /// It's recommended to use `Token::(lifetime,uninterpolate,uninterpolated_span)` to . /// treat regular and interpolated lifetime identifiers in the same way. 975 ( 0.00%) Lifetime(Symbol), . 24 ( 0.00%) Interpolated(Lrc), . . /// A doc comment token. . /// `Symbol` is the doc comment's data excluding its "quotes" (`///`, `/**`, etc) . /// similarly to symbols in string literal tokens. 1,812 ( 0.00%) DocComment(CommentKind, ast::AttrStyle, Symbol), . . Eof, . } . . // `TokenKind` is used a lot. Make sure it doesn't unintentionally get bigger. . #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))] . rustc_data_structures::static_assert_size!(TokenKind, 16); . 434,958 ( 0.21%) #[derive(Clone, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] . pub struct Token { 2,168 ( 0.00%) pub kind: TokenKind, . pub span: Span, . } . . impl TokenKind { . pub fn lit(kind: LitKind, symbol: Symbol, suffix: Option) -> TokenKind { . Literal(Lit::new(kind, symbol, suffix)) 420 ( 0.00%) } . . // An approximation to proc-macro-style single-character operators used by rustc parser. . // If the operator token can be broken into two tokens, the first of which is single-character, . // then this function performs that operation, otherwise it returns `None`. 135 ( 0.00%) pub fn break_two_token_op(&self) -> Option<(TokenKind, TokenKind)> { 540 ( 0.00%) Some(match *self { . Le => (Lt, Eq), . EqEq => (Eq, Eq), . Ne => (Not, Eq), . Ge => (Gt, Eq), . AndAnd => (BinOp(And), BinOp(And)), . OrOr => (BinOp(Or), BinOp(Or)), . BinOp(Shl) => (Lt, Lt), . BinOp(Shr) => (Gt, Gt), -- line 271 ---------------------------------------- -- line 280 ---------------------------------------- . BinOpEq(Shl) => (Lt, Le), . BinOpEq(Shr) => (Gt, Ge), . DotDot => (Dot, Dot), . DotDotDot => (Dot, DotDot), . ModSep => (Colon, Colon), . RArrow => (BinOp(Minus), Gt), . LArrow => (Lt, BinOp(Minus)), . FatArrow => (Eq, Gt), 135 ( 0.00%) _ => return None, . }) 135 ( 0.00%) } . . /// Returns tokens that are likely to be typed accidentally instead of the current token. . /// Enables better error recovery when the wrong token is found. . pub fn similar_tokens(&self) -> Option> { . match *self { . Comma => Some(vec![Dot, Lt, Semi]), . Semi => Some(vec![Colon, Comma]), . FatArrow => Some(vec![Eq, RArrow]), . _ => None, . } . } . . pub fn should_end_const_arg(&self) -> bool { 40 ( 0.00%) matches!(self, Gt | Ge | BinOp(Shr) | BinOpEq(Shr)) 10 ( 0.00%) } . } . . impl Token { 12,895 ( 0.01%) pub fn new(kind: TokenKind, span: Span) -> Self { 39,748 ( 0.02%) Token { kind, span } 12,895 ( 0.01%) } . . /// Some token that will be thrown away later. 337 ( 0.00%) pub fn dummy() -> Self { . Token::new(TokenKind::Question, DUMMY_SP) 337 ( 0.00%) } . . /// Recovers a `Token` from an `Ident`. This creates a raw identifier if necessary. . pub fn from_ast_ident(ident: Ident) -> Self { 184 ( 0.00%) Token::new(Ident(ident.name, ident.is_raw_guess()), ident.span) . } . . /// Return this token by value and leave a dummy token in its place. 9,716 ( 0.00%) pub fn take(&mut self) -> Self { . mem::replace(self, Token::dummy()) 9,716 ( 0.00%) } . . /// For interpolated tokens, returns a span of the fragment to which the interpolated . /// token refers. For all other tokens this is just a regular span. . /// It is particularly important to use this for identifiers and lifetimes . /// for which spans affect name resolution and edition checks. . /// Note that keywords are also identifiers, so they should use this . /// if they keep spans or perform edition checks. . pub fn uninterpolated_span(&self) -> Span { 34 ( 0.00%) match &self.kind { . Interpolated(nt) => nt.span(), 17 ( 0.00%) _ => self.span, . } 17 ( 0.00%) } . . pub fn is_op(&self) -> bool { 29,148 ( 0.01%) !matches!( 9,716 ( 0.00%) self.kind, . OpenDelim(..) . | CloseDelim(..) . | Literal(..) . | DocComment(..) . | Ident(..) . | Lifetime(..) . | Interpolated(..) . | Eof . ) 9,716 ( 0.00%) } . . pub fn is_like_plus(&self) -> bool { 500 ( 0.00%) matches!(self.kind, BinOp(Plus) | BinOpEq(Plus)) 100 ( 0.00%) } . . /// Returns `true` if the token can appear at the start of an expression. 9 ( 0.00%) pub fn can_begin_expr(&self) -> bool { 45 ( 0.00%) match self.uninterpolate().kind { 81 ( 0.00%) Ident(name, is_raw) => 27 ( 0.00%) ident_can_begin_expr(name, self.span, is_raw), // value name or keyword . OpenDelim(..) | // tuple, array or block . Literal(..) | // literal . Not | // operator not . BinOp(Minus) | // unary minus . BinOp(Star) | // dereference . BinOp(Or) | OrOr | // closure . BinOp(And) | // reference . AndAnd | // double reference -- line 371 ---------------------------------------- -- line 376 ---------------------------------------- . Lifetime(..) | // labeled loop . Pound => true, // expression attributes . Interpolated(ref nt) => matches!(**nt, NtLiteral(..) | . NtExpr(..) | . NtBlock(..) | . NtPath(..)), . _ => false, . } 18 ( 0.00%) } . . /// Returns `true` if the token can appear at the start of a type. 28 ( 0.00%) pub fn can_begin_type(&self) -> bool { 57 ( 0.00%) match self.uninterpolate().kind { 36 ( 0.00%) Ident(name, is_raw) => 4 ( 0.00%) ident_can_begin_type(name, self.span, is_raw), // type name or keyword . OpenDelim(Paren) | // tuple . OpenDelim(Bracket) | // array . Not | // never . BinOp(Star) | // raw pointer . BinOp(And) | // reference . AndAnd | // double reference . Question | // maybe bound in trait object . Lifetime(..) | // lifetime bound in trait object . Lt | BinOp(Shl) | // associated path . ModSep => true, // global path . Interpolated(ref nt) => matches!(**nt, NtTy(..) | NtPath(..)), . _ => false, . } 42 ( 0.00%) } . . /// Returns `true` if the token can appear at the start of a const param. . pub fn can_begin_const_arg(&self) -> bool { 30 ( 0.00%) match self.kind { . OpenDelim(Brace) => true, . Interpolated(ref nt) => matches!(**nt, NtExpr(..) | NtBlock(..) | NtLiteral(..)), 6 ( 0.00%) _ => self.can_begin_literal_maybe_minus(), . } . } . . /// Returns `true` if the token can appear at the start of a generic bound. . pub fn can_begin_bound(&self) -> bool { . self.is_path_start() . || self.is_lifetime() . || self.is_keyword(kw::For) -- line 419 ---------------------------------------- -- line 427 ---------------------------------------- . } . . /// Returns `true` if the token is any literal, a minus (which can prefix a literal, . /// for example a '-42', or one of the boolean idents). . /// . /// In other words, would this token be a valid start of `parse_literal_maybe_minus`? . /// . /// Keep this in sync with and `Lit::from_token`, excluding unary negation. 6 ( 0.00%) pub fn can_begin_literal_maybe_minus(&self) -> bool { 58 ( 0.00%) match self.uninterpolate().kind { . Literal(..) | BinOp(Minus) => true, 16 ( 0.00%) Ident(name, false) if name.is_bool_lit() => true, . Interpolated(ref nt) => match &**nt { . NtLiteral(_) => true, . NtExpr(e) => match &e.kind { . ast::ExprKind::Lit(_) => true, . ast::ExprKind::Unary(ast::UnOp::Neg, e) => { . matches!(&e.kind, ast::ExprKind::Lit(_)) . } . _ => false, . }, . _ => false, . }, . _ => false, . } 12 ( 0.00%) } . . // A convenience function for matching on identifiers during parsing. . // Turns interpolated identifier (`$i: ident`) or lifetime (`$l: lifetime`) token . // into the regular identifier or lifetime token it refers to, . // otherwise returns the original token. 133 ( 0.00%) pub fn uninterpolate(&self) -> Cow<'_, Token> { 32,387 ( 0.02%) match &self.kind { 48 ( 0.00%) Interpolated(nt) => match **nt { . NtIdent(ident, is_raw) => { . Cow::Owned(Token::new(Ident(ident.name, is_raw), ident.span)) . } . NtLifetime(ident) => Cow::Owned(Token::new(Lifetime(ident.name), ident.span)), . _ => Cow::Borrowed(self), . }, . _ => Cow::Borrowed(self), . } 133 ( 0.00%) } . . /// Returns an identifier if this token is an identifier. 10,026 ( 0.00%) pub fn ident(&self) -> Option<(Ident, /* is_raw */ bool)> { . let token = self.uninterpolate(); 27,277 ( 0.01%) match token.kind { 113,185 ( 0.06%) Ident(name, is_raw) => Some((Ident::new(name, token.span), is_raw)), . _ => None, . } 62,511 ( 0.03%) } . . /// Returns a lifetime identifier if this token is a lifetime. 236 ( 0.00%) pub fn lifetime(&self) -> Option { . let token = self.uninterpolate(); 530 ( 0.00%) match token.kind { 92 ( 0.00%) Lifetime(name) => Some(Ident::new(name, token.span)), . _ => None, . } 1,652 ( 0.00%) } . . /// Returns `true` if the token is an identifier. . pub fn is_ident(&self) -> bool { . self.ident().is_some() 685 ( 0.00%) } . . /// Returns `true` if the token is a lifetime. 29 ( 0.00%) pub fn is_lifetime(&self) -> bool { . self.lifetime().is_some() 58 ( 0.00%) } . . /// Returns `true` if the token is an identifier whose name is the given . /// string slice. 61 ( 0.00%) pub fn is_ident_named(&self, name: Symbol) -> bool { . self.ident().map_or(false, |(ident, _)| ident.name == name) 122 ( 0.00%) } . . /// Returns `true` if the token is an interpolated path. . fn is_path(&self) -> bool { 580 ( 0.00%) if let Interpolated(ref nt) = self.kind { . if let NtPath(..) = **nt { . return true; . } . } . false . } . . /// Would `maybe_whole_expr` in `parser.rs` return `Ok(..)`? -- line 515 ---------------------------------------- -- line 535 ---------------------------------------- . false . } . . /// Returns `true` if the token is either the `mut` or `const` keyword. . pub fn is_mutability(&self) -> bool { . self.is_keyword(kw::Mut) || self.is_keyword(kw::Const) . } . 16 ( 0.00%) pub fn is_qpath_start(&self) -> bool { 306 ( 0.00%) self == &Lt || self == &BinOp(Shl) . } . 580 ( 0.00%) pub fn is_path_start(&self) -> bool { 862 ( 0.00%) self == &ModSep . || self.is_qpath_start() . || self.is_path() . || self.is_path_segment_keyword() 121 ( 0.00%) || self.is_ident() && !self.is_reserved_ident() 725 ( 0.00%) } . . /// Returns `true` if the token is a given keyword, `kw`. 2,313 ( 0.00%) pub fn is_keyword(&self, kw: Symbol) -> bool { . self.is_non_raw_ident_where(|id| id.name == kw) 4,626 ( 0.00%) } . 29 ( 0.00%) pub fn is_path_segment_keyword(&self) -> bool { . self.is_non_raw_ident_where(Ident::is_path_segment_keyword) . } . . // Returns true for reserved identifiers used internally for elided lifetimes, . // unnamed method parameters, crate root module, error recovery etc. 57 ( 0.00%) pub fn is_special_ident(&self) -> bool { . self.is_non_raw_ident_where(Ident::is_special) . } . . /// Returns `true` if the token is a keyword used in the language. 57 ( 0.00%) pub fn is_used_keyword(&self) -> bool { . self.is_non_raw_ident_where(Ident::is_used_keyword) . } . . /// Returns `true` if the token is a keyword reserved for possible future use. 57 ( 0.00%) pub fn is_unused_keyword(&self) -> bool { . self.is_non_raw_ident_where(Ident::is_unused_keyword) . } . . /// Returns `true` if the token is either a special identifier or a keyword. . pub fn is_reserved_ident(&self) -> bool { . self.is_non_raw_ident_where(Ident::is_reserved) . } . . /// Returns `true` if the token is the identifier `true` or `false`. 29 ( 0.00%) pub fn is_bool_lit(&self) -> bool { 58 ( 0.00%) self.is_non_raw_ident_where(|id| id.name.is_bool_lit()) . } . . pub fn is_numeric_lit(&self) -> bool { . matches!( . self.kind, . Literal(Lit { kind: LitKind::Integer, .. }) | Literal(Lit { kind: LitKind::Float, .. }) . ) . } . . /// Returns `true` if the token is a non-raw identifier for which `pred` holds. . pub fn is_non_raw_ident_where(&self, pred: impl FnOnce(Ident) -> bool) -> bool { 15,973 ( 0.01%) match self.ident() { 117 ( 0.00%) Some((id, false)) => pred(id), . _ => false, . } . } . 26,810 ( 0.01%) pub fn glue(&self, joint: &Token) -> Option { 13,405 ( 0.01%) let kind = match self.kind { 331 ( 0.00%) Eq => match joint.kind { . Eq => EqEq, . Gt => FatArrow, . _ => return None, . }, 239 ( 0.00%) Lt => match joint.kind { . Eq => Le, . Lt => BinOp(Shl), . Le => BinOpEq(Shl), . BinOp(Minus) => LArrow, . _ => return None, . }, 170 ( 0.00%) Gt => match joint.kind { . Eq => Ge, . Gt => BinOp(Shr), . Ge => BinOpEq(Shr), . _ => return None, . }, 22 ( 0.00%) Not => match joint.kind { . Eq => Ne, . _ => return None, . }, 1,004 ( 0.00%) BinOp(op) => match joint.kind { . Eq => BinOpEq(op), 1 ( 0.00%) BinOp(And) if op == And => AndAnd, 7 ( 0.00%) BinOp(Or) if op == Or => OrOr, 119 ( 0.00%) Gt if op == Minus => RArrow, . _ => return None, . }, 156 ( 0.00%) Dot => match joint.kind { . Dot => DotDot, . DotDot => DotDotDot, . _ => return None, . }, 165 ( 0.00%) DotDot => match joint.kind { . Dot => DotDotDot, . Eq => DotDotEq, . _ => return None, . }, 928 ( 0.00%) Colon => match joint.kind { . Colon => ModSep, . _ => return None, . }, . SingleQuote => match joint.kind { . Ident(name, false) => Lifetime(Symbol::intern(&format!("'{}", name))), . _ => return None, . }, . . Le | EqEq | Ne | Ge | AndAnd | OrOr | Tilde | BinOpEq(..) | At | DotDotDot . | DotDotEq | Comma | Semi | ModSep | RArrow | LArrow | FatArrow | Pound | Dollar . | Question | OpenDelim(..) | CloseDelim(..) | Literal(..) | Ident(..) . | Lifetime(..) | Interpolated(..) | DocComment(..) | Eof => return None, . }; . 10,296 ( 0.01%) Some(Token::new(kind, self.span.to(joint.span))) 24,129 ( 0.01%) } . } . . impl PartialEq for Token { . fn eq(&self, rhs: &TokenKind) -> bool { 6,695 ( 0.00%) self.kind == *rhs . } . } . . #[derive(Clone, Encodable, Decodable)] . /// For interpolation during macro expansion. . pub enum Nonterminal { . NtItem(P), . NtBlock(P), -- line 675 ---------------------------------------- -- line 711 ---------------------------------------- . Path, . Vis, . TT, . } . . impl NonterminalKind { . /// The `edition` closure is used to get the edition for the given symbol. Doing . /// `span.edition()` is expensive, so we do it lazily. 248 ( 0.00%) pub fn from_symbol( . symbol: Symbol, . edition: impl FnOnce() -> Edition, . ) -> Option { 554 ( 0.00%) Some(match symbol { . sym::item => NonterminalKind::Item, . sym::block => NonterminalKind::Block, . sym::stmt => NonterminalKind::Stmt, . sym::pat => match edition() { . Edition::Edition2015 | Edition::Edition2018 => { . NonterminalKind::PatParam { inferred: true } . } . Edition::Edition2021 => NonterminalKind::PatWithOr, -- line 731 ---------------------------------------- -- line 737 ---------------------------------------- . sym::lifetime => NonterminalKind::Lifetime, . sym::literal => NonterminalKind::Literal, . sym::meta => NonterminalKind::Meta, . sym::path => NonterminalKind::Path, . sym::vis => NonterminalKind::Vis, . sym::tt => NonterminalKind::TT, . _ => return None, . }) 248 ( 0.00%) } . fn symbol(self) -> Symbol { . match self { . NonterminalKind::Item => sym::item, . NonterminalKind::Block => sym::block, . NonterminalKind::Stmt => sym::stmt, . NonterminalKind::PatParam { inferred: false } => sym::pat_param, . NonterminalKind::PatParam { inferred: true } | NonterminalKind::PatWithOr => sym::pat, . NonterminalKind::Expr => sym::expr, -- line 753 ---------------------------------------- 214,790 ( 0.10%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/indexmap-1.8.0/src/map/core.rs -------------------------------------------------------------------------------- Ir -- line 26 ---------------------------------------- . /// indices mapping from the entry hash to its index. . indices: RawTable, . /// entries is a dense vec of entries in their order. . entries: Vec>, . } . . #[inline(always)] . fn get_hash(entries: &[Bucket]) -> impl Fn(&usize) -> u64 + '_ { 79,654 ( 0.04%) move |&i| entries[i].hash.get() . } . . #[inline] . fn equivalent<'a, K, V, Q: ?Sized + Equivalent>( . key: &'a Q, . entries: &'a [Bucket], . ) -> impl Fn(&usize) -> bool + 'a { 12,480 ( 0.01%) move |&i| Q::equivalent(key, &entries[i].key) . } . . #[inline] . fn erase_index(table: &mut RawTable, hash: HashValue, index: usize) { . table.erase_entry(hash.get(), move |&i| i == index); . } . . #[inline] -- line 50 ---------------------------------------- -- line 132 ---------------------------------------- . IndexMapCore { . indices: RawTable::with_capacity(n), . entries: Vec::with_capacity(n), . } . } . . #[inline] . pub(crate) fn len(&self) -> usize { 394 ( 0.00%) self.indices.len() . } . . #[inline] . pub(crate) fn capacity(&self) -> usize { . cmp::min(self.indices.capacity(), self.entries.capacity()) . } . . pub(crate) fn clear(&mut self) { -- line 148 ---------------------------------------- -- line 152 ---------------------------------------- . . pub(crate) fn truncate(&mut self, len: usize) { . if len < self.len() { . self.erase_indices(len, self.entries.len()); . self.entries.truncate(len); . } . } . 63 ( 0.00%) pub(crate) fn drain(&mut self, range: R) -> Drain<'_, Bucket> . where . R: RangeBounds, . { 21 ( 0.00%) let range = simplify_range(range, self.entries.len()); . self.erase_indices(range.start, range.end); . self.entries.drain(range) 56 ( 0.00%) } . . #[cfg(feature = "rayon")] . pub(crate) fn par_drain(&mut self, range: R) -> rayon::vec::Drain<'_, Bucket> . where . K: Send, . V: Send, . R: RangeBounds, . { -- line 175 ---------------------------------------- -- line 194 ---------------------------------------- . /// Reserve capacity for `additional` more key-value pairs. . pub(crate) fn reserve(&mut self, additional: usize) { . self.indices.reserve(additional, get_hash(&self.entries)); . self.reserve_entries(); . } . . /// Reserve entries capacity to match the indices . fn reserve_entries(&mut self) { 1,904 ( 0.00%) let additional = self.indices.capacity() - self.entries.len(); . self.entries.reserve_exact(additional); . } . . /// Shrink the capacity of the map as much as possible. . pub(crate) fn shrink_to_fit(&mut self) { . self.indices.shrink_to(0, get_hash(&self.entries)); . self.entries.shrink_to_fit(); . } -- line 210 ---------------------------------------- -- line 218 ---------------------------------------- . } else { . None . } . } . . /// Append a key-value pair, *without* checking whether it already exists, . /// and return the pair's new index. . fn push(&mut self, hash: HashValue, key: K, value: V) -> usize { 11,980 ( 0.01%) let i = self.entries.len(); . self.indices.insert(hash.get(), i, get_hash(&self.entries)); 24,148 ( 0.01%) if i == self.entries.capacity() { . // Reserve our own capacity synced to the indices, . // rather than letting `Vec::push` just double it. . self.reserve_entries(); . } 74,177 ( 0.04%) self.entries.push(Bucket { hash, key, value }); . i . } . . /// Return the index in `entries` where an equivalent key can be found 1,220 ( 0.00%) pub(crate) fn get_index_of(&self, hash: HashValue, key: &Q) -> Option . where . Q: ?Sized + Equivalent, . { 142 ( 0.00%) let eq = equivalent(key, &self.entries); . self.indices.get(hash.get(), eq).copied() 1,220 ( 0.00%) } . 708 ( 0.00%) pub(crate) fn insert_full(&mut self, hash: HashValue, key: K, value: V) -> (usize, Option) . where . K: Eq, . { . match self.get_index_of(hash, &key) { . Some(i) => (i, Some(replace(&mut self.entries[i].value, value))), 96 ( 0.00%) None => (self.push(hash, key, value), None), . } 616 ( 0.00%) } . . /// Remove an entry by shifting all entries that follow it . pub(crate) fn shift_remove_full(&mut self, hash: HashValue, key: &Q) -> Option<(usize, K, V)> . where . Q: ?Sized + Equivalent, . { . let eq = equivalent(key, &self.entries); . match self.indices.remove_entry(hash.get(), eq) { -- line 262 ---------------------------------------- -- line 361 ---------------------------------------- . let (init, shifted_entries) = self.entries.split_at(end); . let (start_entries, erased_entries) = init.split_at(start); . . let erased = erased_entries.len(); . let shifted = shifted_entries.len(); . let half_capacity = self.indices.buckets() / 2; . . // Use a heuristic between different strategies 14 ( 0.00%) if erased == 0 { . // Degenerate case, nothing to do . } else if start + shifted < half_capacity && start < erased { . // Reinsert everything, as there are few kept indices . self.indices.clear(); . . // Reinsert stable indices . for (i, entry) in enumerate(start_entries) { . self.indices.insert_no_grow(entry.hash.get(), i); -- line 377 ---------------------------------------- -- line 468 ---------------------------------------- . Entry::Vacant(entry) => entry.insert(default), . } . } . . /// Inserts the result of the `call` function in the entry if it is vacant and returns a mutable . /// reference to it. Otherwise a mutable reference to an already existent value is returned. . /// . /// Computes in **O(1)** time (amortized average). 16,552 ( 0.01%) pub fn or_insert_with(self, call: F) -> &'a mut V . where . F: FnOnce() -> V, . { 4,138 ( 0.00%) match self { 902 ( 0.00%) Entry::Occupied(entry) => entry.into_mut(), 1,251 ( 0.00%) Entry::Vacant(entry) => entry.insert(call()), . } 16,552 ( 0.01%) } . . /// Inserts the result of the `call` function with a reference to the entry's key if it is . /// vacant, and returns a mutable reference to the new value. Otherwise a mutable reference to . /// an already existent value is returned. . /// . /// Computes in **O(1)** time (amortized average). . pub fn or_insert_with_key(self, call: F) -> &'a mut V . where -- line 492 ---------------------------------------- -- line 531 ---------------------------------------- . x => x, . } . } . . /// Inserts a default-constructed value in the entry if it is vacant and returns a mutable . /// reference to it. Otherwise a mutable reference to an already existent value is returned. . /// . /// Computes in **O(1)** time (amortized average). 82,880 ( 0.04%) pub fn or_default(self) -> &'a mut V . where . V: Default, . { 23,680 ( 0.01%) match self { 1,327 ( 0.00%) Entry::Occupied(entry) => entry.into_mut(), 31,539 ( 0.02%) Entry::Vacant(entry) => entry.insert(V::default()), . } 94,720 ( 0.05%) } . } . . impl fmt::Debug for Entry<'_, K, V> { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . match *self { . Entry::Vacant(ref v) => f.debug_tuple(stringify!(Entry)).field(v).finish(), . Entry::Occupied(ref o) => f.debug_tuple(stringify!(Entry)).field(o).finish(), . } -- line 555 ---------------------------------------- -- line 634 ---------------------------------------- . . /// Return the index where the key-value pair will be inserted. . pub fn index(&self) -> usize { . self.map.len() . } . . /// Inserts the entry's key and the given value into the map, and returns a mutable reference . /// to the value. 2,232 ( 0.00%) pub fn insert(self, value: V) -> &'a mut V { 32,429 ( 0.02%) let i = self.map.push(self.hash, self.key, value); 147 ( 0.00%) &mut self.map.entries[i].value 2,662 ( 0.00%) } . } . . impl fmt::Debug for VacantEntry<'_, K, V> { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . f.debug_tuple(stringify!(VacantEntry)) . .field(self.key()) . .finish() . } -- line 653 ---------------------------------------- 81,691 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/collections/btree/search.rs -------------------------------------------------------------------------------- Ir -- line 40 ---------------------------------------- . . impl NodeRef { . /// Looks up a given key in a (sub)tree headed by the node, recursively. . /// Returns a `Found` with the handle of the matching KV, if any. Otherwise, . /// returns a `GoDown` with the handle of the leaf edge where the key belongs. . /// . /// The result is meaningful only if the tree is ordered by key, like the tree . /// in a `BTreeMap` is. 42,170 ( 0.02%) pub fn search_tree( . mut self, . key: &Q, . ) -> SearchResult . where . Q: Ord, . K: Borrow, . { . loop { . self = match self.search_node(key) { . Found(handle) => return Found(handle), 2,483 ( 0.00%) GoDown(handle) => match handle.force() { . Leaf(leaf) => return GoDown(leaf), . Internal(internal) => internal.descend(), . }, . } . } 22,324 ( 0.01%) } . . /// Descends to the nearest node where the edge matching the lower bound . /// of the range is different from the edge matching the upper bound, i.e., . /// the nearest node that has at least one key contained in the range. . /// . /// If found, returns an `Ok` with that node, the strictly ascending pair of . /// edge indices in the node delimiting the range, and the corresponding . /// pair of bounds for continuing the search in the child nodes, in case -- line 73 ---------------------------------------- -- line 202 ---------------------------------------- . unsafe fn find_key_index(&self, key: &Q, start_index: usize) -> IndexResult . where . Q: Ord, . K: Borrow, . { . let node = self.reborrow(); . let keys = node.keys(); . debug_assert!(start_index <= keys.len()); 26,957 ( 0.01%) for (offset, k) in unsafe { keys.get_unchecked(start_index..) }.iter().enumerate() { 105,395 ( 0.05%) match key.cmp(k.borrow()) { . Ordering::Greater => {} . Ordering::Equal => return IndexResult::KV(start_index + offset), . Ordering::Less => return IndexResult::Edge(start_index + offset), . } . } . IndexResult::Edge(keys.len()) . } . -- line 219 ---------------------------------------- 50,544 ( 0.02%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/rc.rs -------------------------------------------------------------------------------- Ir -- line 357 ---------------------------------------- . /// . /// ``` . /// use std::rc::Rc; . /// . /// let five = Rc::new(5); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] 778 ( 0.00%) pub fn new(value: T) -> Rc { . // There is an implicit weak pointer owned by all the strong . // pointers, which ensures that the weak destructor never frees . // the allocation while the strong destructor is running, even . // if the weak pointer is stored inside the strong one. . unsafe { . Self::from_inner( 67,412 ( 0.03%) Box::leak(box RcBox { strong: Cell::new(1), weak: Cell::new(1), value }).into(), . ) . } 778 ( 0.00%) } . . /// Constructs a new `Rc` using a closure `data_fn` that has access to a . /// weak reference to the constructing `Rc`. . /// . /// Generally, a structure circularly referencing itself, either directly or . /// indirectly, should not hold a strong reference to prevent a memory leak. . /// In `data_fn`, initialization of `T` can make use of the weak reference . /// by cloning and storing it inside `T` for use at a later time. -- line 383 ---------------------------------------- -- line 637 ---------------------------------------- . /// . /// let x = Rc::new(4); . /// let _y = Rc::clone(&x); . /// assert_eq!(*Rc::try_unwrap(x).unwrap_err(), 4); . /// ``` . #[inline] . #[stable(feature = "rc_unique", since = "1.4.0")] . pub fn try_unwrap(this: Self) -> Result { 2 ( 0.00%) if Rc::strong_count(&this) == 1 { . unsafe { . let val = ptr::read(&*this); // copy the contained object . . // Indicate to Weaks that they can't be promoted by decrementing . // the strong count, and then remove the implicit "strong weak" . // pointer while also handling drop logic by just crafting a . // fake Weak. . this.inner().dec_strong(); -- line 653 ---------------------------------------- -- line 931 ---------------------------------------- . /// let five = Rc::new(5); . /// let _weak_five = Rc::downgrade(&five); . /// . /// assert_eq!(1, Rc::weak_count(&five)); . /// ``` . #[inline] . #[stable(feature = "rc_counts", since = "1.15.0")] . pub fn weak_count(this: &Self) -> usize { 513 ( 0.00%) this.inner().weak() - 1 . } . . /// Gets the number of strong (`Rc`) pointers to this allocation. . /// . /// # Examples . /// . /// ``` . /// use std::rc::Rc; -- line 947 ---------------------------------------- -- line 1023 ---------------------------------------- . pub unsafe fn decrement_strong_count(ptr: *const T) { . unsafe { mem::drop(Rc::from_raw(ptr)) }; . } . . /// Returns `true` if there are no other `Rc` or [`Weak`] pointers to . /// this allocation. . #[inline] . fn is_unique(this: &Self) -> bool { 93 ( 0.00%) Rc::weak_count(this) == 0 && Rc::strong_count(this) == 1 . } . . /// Returns a mutable reference into the given `Rc`, if there are . /// no other `Rc` or [`Weak`] pointers to the same allocation. . /// . /// Returns [`None`] otherwise, because it is not safe to . /// mutate a shared value. . /// -- line 1039 ---------------------------------------- -- line 1053 ---------------------------------------- . /// assert_eq!(*x, 4); . /// . /// let _y = Rc::clone(&x); . /// assert!(Rc::get_mut(&mut x).is_none()); . /// ``` . #[inline] . #[stable(feature = "rc_unique", since = "1.4.0")] . pub fn get_mut(this: &mut Self) -> Option<&mut T> { 31 ( 0.00%) if Rc::is_unique(this) { unsafe { Some(Rc::get_mut_unchecked(this)) } } else { None } . } . . /// Returns a mutable reference into the given `Rc`, . /// without any check. . /// . /// See also [`get_mut`], which is safe and does appropriate checks. . /// . /// [`get_mut`]: Rc::get_mut -- line 1069 ---------------------------------------- -- line 1088 ---------------------------------------- . /// } . /// assert_eq!(*x, "foo"); . /// ``` . #[inline] . #[unstable(feature = "get_mut_unchecked", issue = "63292")] . pub unsafe fn get_mut_unchecked(this: &mut Self) -> &mut T { . // We are careful to *not* create a reference covering the "count" fields, as . // this would conflict with accesses to the reference counts (e.g. by `Weak`). 4,180 ( 0.00%) unsafe { &mut (*this.ptr.as_ptr()).value } . } . . #[inline] . #[stable(feature = "ptr_eq", since = "1.17.0")] . /// Returns `true` if the two `Rc`s point to the same allocation . /// (in a vein similar to [`ptr::eq`]). . /// . /// # Examples -- line 1104 ---------------------------------------- -- line 1109 ---------------------------------------- . /// let five = Rc::new(5); . /// let same_five = Rc::clone(&five); . /// let other_five = Rc::new(5); . /// . /// assert!(Rc::ptr_eq(&five, &same_five)); . /// assert!(!Rc::ptr_eq(&five, &other_five)); . /// ``` . pub fn ptr_eq(this: &Self, other: &Self) -> bool { 69 ( 0.00%) this.ptr.as_ptr() == other.ptr.as_ptr() . } . } . . impl Rc { . /// Makes a mutable reference into the given `Rc`. . /// . /// If there are other `Rc` pointers to the same allocation, then `make_mut` will . /// [`clone`] the inner value to a new allocation to ensure unique ownership. This is also -- line 1125 ---------------------------------------- -- line 1167 ---------------------------------------- . /// *Rc::make_mut(&mut data) += 1; . /// . /// assert!(76 == *data); . /// assert!(weak.upgrade().is_none()); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[inline] . #[stable(feature = "rc_unique", since = "1.4.0")] 1,160 ( 0.00%) pub fn make_mut(this: &mut Self) -> &mut T { 696 ( 0.00%) if Rc::strong_count(this) != 1 { . // Gotta clone the data, there are other Rcs. . // Pre-allocate memory to allow writing the cloned value directly. 132 ( 0.00%) let mut rc = Self::new_uninit(); . unsafe { . let data = Rc::get_mut_unchecked(&mut rc); . (**this).write_clone_into_raw(data.as_mut_ptr()); 264 ( 0.00%) *this = rc.assume_init(); . } 280 ( 0.00%) } else if Rc::weak_count(this) != 0 { . // Can just steal the data, all that's left is Weaks . let mut rc = Self::new_uninit(); . unsafe { . let data = Rc::get_mut_unchecked(&mut rc); . data.as_mut_ptr().copy_from_nonoverlapping(&**this, 1); . . this.inner().dec_strong(); . // Remove implicit strong-weak ref (no need to craft a fake -- line 1193 ---------------------------------------- -- line 1196 ---------------------------------------- . ptr::write(this, rc.assume_init()); . } . } . // This unsafety is ok because we're guaranteed that the pointer . // returned is the *only* pointer that will ever be returned to T. Our . // reference count is guaranteed to be 1 at this point, and we required . // the `Rc` itself to be `mut`, so we're returning the only possible . // reference to the allocation. 272 ( 0.00%) unsafe { &mut this.ptr.as_mut().value } 1,392 ( 0.00%) } . } . . impl Rc { . #[inline] . #[stable(feature = "rc_downcast", since = "1.29.0")] . /// Attempt to downcast the `Rc` to a concrete type. . /// . /// # Examples -- line 1213 ---------------------------------------- -- line 1344 ---------------------------------------- . ) . } . } . . /// Copy elements from slice into newly allocated Rc<\[T\]> . /// . /// Unsafe because the caller must either take ownership or bind `T: Copy` . #[cfg(not(no_global_oom_handling))] 384 ( 0.00%) unsafe fn copy_from_slice(v: &[T]) -> Rc<[T]> { . unsafe { . let ptr = Self::allocate_for_slice(v.len()); 78 ( 0.00%) ptr::copy_nonoverlapping(v.as_ptr(), &mut (*ptr).value as *mut [T] as *mut T, v.len()); . Self::from_ptr(ptr) . } 498 ( 0.00%) } . . /// Constructs an `Rc<[T]>` from an iterator known to be of a certain size. . /// . /// Behavior is undefined should the size be wrong. . #[cfg(not(no_global_oom_handling))] . unsafe fn from_iter_exact(iter: impl iter::Iterator, len: usize) -> Rc<[T]> { . // Panic guard while cloning T elements. . // In the event of a panic, elements that have been written -- line 1366 ---------------------------------------- -- line 1419 ---------------------------------------- . unsafe { Self::from_iter_exact(v.iter().cloned(), v.len()) } . } . } . . #[cfg(not(no_global_oom_handling))] . impl RcFromSlice for Rc<[T]> { . #[inline] . fn from_slice(v: &[T]) -> Self { 13 ( 0.00%) unsafe { Rc::copy_from_slice(v) } . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Deref for Rc { . type Target = T; . . #[inline(always)] . fn deref(&self) -> &T { 67,332 ( 0.03%) &self.inner().value . } . } . . #[unstable(feature = "receiver_trait", issue = "none")] . impl Receiver for Rc {} . . #[stable(feature = "rust1", since = "1.0.0")] . unsafe impl<#[may_dangle] T: ?Sized> Drop for Rc { -- line 1445 ---------------------------------------- -- line 1463 ---------------------------------------- . /// } . /// . /// let foo = Rc::new(Foo); . /// let foo2 = Rc::clone(&foo); . /// . /// drop(foo); // Doesn't print anything . /// drop(foo2); // Prints "dropped!" . /// ``` 190,435 ( 0.09%) fn drop(&mut self) { . unsafe { 50,302 ( 0.02%) self.inner().dec_strong(); 112,139 ( 0.05%) if self.inner().strong() == 0 { . // destroy the contained object 2,622 ( 0.00%) ptr::drop_in_place(Self::get_mut_unchecked(self)); . . // remove the implicit "strong weak" pointer now that we've . // destroyed the contents. 1 ( 0.00%) self.inner().dec_weak(); . 13,169 ( 0.01%) if self.inner().weak() == 0 { 58 ( 0.00%) Global.deallocate(self.ptr.cast(), Layout::for_value(self.ptr.as_ref())); . } . } . } 215,676 ( 0.11%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Clone for Rc { . /// Makes a clone of the `Rc` pointer. . /// . /// This creates another pointer to the same allocation, increasing the . /// strong reference count. -- line 1495 ---------------------------------------- -- line 1562 ---------------------------------------- . /// cost to pay off more easily. It's also more likely to have two `Rc` clones, that point to . /// the same value, than two `&T`s. . /// . /// We can only do this when `T: Eq` as a `PartialEq` might be deliberately irreflexive. . #[stable(feature = "rust1", since = "1.0.0")] . impl RcEqIdent for Rc { . #[inline] . fn eq(&self, other: &Rc) -> bool { 69 ( 0.00%) Rc::ptr_eq(self, other) || **self == **other . } . . #[inline] . fn ne(&self, other: &Rc) -> bool { . !Rc::ptr_eq(self, other) && **self != **other . } . } . -- line 1578 ---------------------------------------- -- line 1879 ---------------------------------------- . /// # use std::rc::Rc; . /// let original: Box> = Box::new(vec![1, 2, 3]); . /// let shared: Rc> = Rc::from(original); . /// assert_eq!(vec![1, 2, 3], *shared); . /// ``` . #[inline] . fn from(mut v: Vec) -> Rc<[T]> { . unsafe { 120 ( 0.00%) let rc = Rc::copy_from_slice(&v); . . // Allow the Vec to free its memory, but not destroy its contents . v.set_len(0); . . rc . } . } . } -- line 1895 ---------------------------------------- -- line 2080 ---------------------------------------- . #[must_use] . pub fn new() -> Weak { . Weak { ptr: NonNull::new(usize::MAX as *mut RcBox).expect("MAX is not 0") } . } . } . . pub(crate) fn is_dangling(ptr: *mut T) -> bool { . let address = ptr as *mut () as usize; 27 ( 0.00%) address == usize::MAX . } . . /// Helper type to allow accessing the reference counts without . /// making any assertions about the data field. . struct WeakInner<'a> { . weak: &'a Cell, . strong: &'a Cell, . } -- line 2096 ---------------------------------------- -- line 2299 ---------------------------------------- . }) . .unwrap_or(0) . } . . /// Returns `None` when the pointer is dangling and there is no allocated `RcBox`, . /// (i.e., when this `Weak` was created by `Weak::new`). . #[inline] . fn inner(&self) -> Option> { 1 ( 0.00%) if is_dangling(self.ptr.as_ptr()) { . None . } else { . // We are careful to *not* create a reference covering the "data" field, as . // the field may be mutated concurrently (for example, if the last `Rc` . // is dropped, the data field will be dropped in-place). . Some(unsafe { . let ptr = self.ptr.as_ptr(); . WeakInner { strong: &(*ptr).strong, weak: &(*ptr).weak } -- line 2315 ---------------------------------------- -- line 2391 ---------------------------------------- . /// assert!(other_weak_foo.upgrade().is_none()); . /// ``` . fn drop(&mut self) { . let inner = if let Some(inner) = self.inner() { inner } else { return }; . . inner.dec_weak(); . // the weak count starts at 1, and will only go to zero if all . // the strong pointers have disappeared. 2 ( 0.00%) if inner.weak() == 0 { . unsafe { . Global.deallocate(self.ptr.cast(), Layout::for_value_raw(self.ptr.as_ptr())); . } . } . } . } . . #[stable(feature = "rc_weak", since = "1.4.0")] -- line 2407 ---------------------------------------- -- line 2469 ---------------------------------------- . . #[inline] . fn strong(&self) -> usize { . self.strong_ref().get() . } . . #[inline] . fn inc_strong(&self) { 48,830 ( 0.02%) let strong = self.strong(); . . // We want to abort on overflow instead of dropping the value. . // The reference count will never be zero when this is called; . // nevertheless, we insert an abort here to hint LLVM at . // an otherwise missed optimization. 147,753 ( 0.07%) if strong == 0 || strong == usize::MAX { . abort(); . } 305 ( 0.00%) self.strong_ref().set(strong + 1); . } . . #[inline] . fn dec_strong(&self) { 168,794 ( 0.08%) self.strong_ref().set(self.strong() - 1); . } . . #[inline] . fn weak(&self) -> usize { . self.weak_ref().get() . } . . #[inline] -- line 2499 ---------------------------------------- -- line 2507 ---------------------------------------- . if weak == 0 || weak == usize::MAX { . abort(); . } . self.weak_ref().set(weak + 1); . } . . #[inline] . fn dec_weak(&self) { 19,860 ( 0.01%) self.weak_ref().set(self.weak() - 1); . } . } . . impl RcInnerPtr for RcBox { . #[inline(always)] . fn weak_ref(&self) -> &Cell { . &self.weak . } -- line 2523 ---------------------------------------- 8,543 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs -------------------------------------------------------------------------------- Ir -- line 111 ---------------------------------------- . const EMPTY: u8 = 0b1111_1111; . . /// Control byte value for a deleted bucket. . const DELETED: u8 = 0b1000_0000; . . /// Checks whether a control byte represents a full bucket (top bit is clear). . #[inline] . fn is_full(ctrl: u8) -> bool { 249,672 ( 0.12%) ctrl & 0x80 == 0 . } . . /// Checks whether a control byte represents a special value (top bit is set). . #[inline] . fn is_special(ctrl: u8) -> bool { . ctrl & 0x80 != 0 . } . . /// Checks whether a special control value is EMPTY (just check 1 bit). . #[inline] . fn special_is_empty(ctrl: u8) -> bool { . debug_assert!(is_special(ctrl)); 21,379 ( 0.01%) ctrl & 0x01 != 0 . } . . /// Primary hash function, used to select the initial bucket to probe from. . #[inline] . #[allow(clippy::cast_possible_truncation)] . fn h1(hash: u64) -> usize { . // On 32-bit platforms we simply ignore the higher hash bits. . hash as usize -- line 140 ---------------------------------------- -- line 143 ---------------------------------------- . /// Secondary hash function, saved in the low 7 bits of the control byte. . #[inline] . #[allow(clippy::cast_possible_truncation)] . fn h2(hash: u64) -> u8 { . // Grab the top 7 bits of the hash. While the hash is normally a full 64-bit . // value, some hash functions (such as FxHash) produce a usize result . // instead, which means that the top 32 bits are 0 on 32-bit platforms. . let hash_len = usize::min(mem::size_of::(), mem::size_of::()); 2,164,423 ( 1.06%) let top7 = hash >> (hash_len * 8 - 7); . (top7 & 0x7f) as u8 // truncation . } . . /// Probe sequence based on triangular numbers, which is guaranteed (since our . /// table size is a power of two) to visit every group of elements exactly once. . /// . /// A triangular probe has us jump by 1 more group every time. So first we . /// jump by 1 group (meaning we just continue our linear scan), then 2 groups -- line 159 ---------------------------------------- -- line 170 ---------------------------------------- . #[inline] . fn move_next(&mut self, bucket_mask: usize) { . // We should have found an empty bucket by now and ended the probe. . debug_assert!( . self.stride <= bucket_mask, . "Went past end of probe sequence" . ); . 33,114 ( 0.02%) self.stride += Group::WIDTH; 33,114 ( 0.02%) self.pos += self.stride; 27,631 ( 0.01%) self.pos &= bucket_mask; . } . } . . /// Returns the number of buckets needed to hold the given number of items, . /// taking the maximum load factor into account. . /// . /// Returns `None` if an overflow occurs. . // Workaround for emscripten bug emscripten-core/emscripten-fastcomp#258 . #[cfg_attr(target_os = "emscripten", inline(never))] . #[cfg_attr(not(target_os = "emscripten"), inline)] . fn capacity_to_buckets(cap: usize) -> Option { . debug_assert_ne!(cap, 0); . . // For small tables we require at least 1 empty bucket so that lookups are . // guaranteed to terminate if an element doesn't exist in the table. 8,992 ( 0.00%) if cap < 8 { . // We don't bother with a table size of 2 buckets since that can only . // hold a single element. Instead we skip directly to a 4 bucket table . // which can hold 3 elements. 17,395 ( 0.01%) return Some(if cap < 4 { 4 } else { 8 }); . } . . // Otherwise require 1/8 buckets to be empty (87.5% load) . // . // Be careful when modifying this, calculate_layout relies on the . // overflow check here. 6,102 ( 0.00%) let adjusted_cap = cap.checked_mul(8)? / 7; . . // Any overflows will have been caught by the checked_mul. Also, any . // rounding errors from the division above will be cleaned up by . // next_power_of_two (which can't overflow because of the previous division). . Some(adjusted_cap.next_power_of_two()) . } . . /// Returns the maximum effective capacity for the given bucket mask, taking . /// the maximum load factor into account. . #[inline] . fn bucket_mask_to_capacity(bucket_mask: usize) -> usize { 23,871 ( 0.01%) if bucket_mask < 8 { . // For tables with 1/2/4/8 buckets, we always reserve one empty slot. . // Keep in mind that the bucket mask is one less than the bucket count. . bucket_mask . } else { . // For larger tables we reserve 12.5% of the slots as empty. 7,882 ( 0.00%) ((bucket_mask + 1) / 8) * 7 . } . } . . /// Helper which allows the max calculation for ctrl_align to be statically computed for each T . /// while keeping the rest of `calculate_layout_for` independent of `T` . #[derive(Copy, Clone)] . struct TableLayout { . size: usize, -- line 233 ---------------------------------------- -- line 246 ---------------------------------------- . . #[inline] . fn calculate_layout_for(self, buckets: usize) -> Option<(Layout, usize)> { . debug_assert!(buckets.is_power_of_two()); . . let TableLayout { size, ctrl_align } = self; . // Manual layout calculation since Layout methods are not yet stable. . let ctrl_offset = 18,922 ( 0.01%) size.checked_mul(buckets)?.checked_add(ctrl_align - 1)? & !(ctrl_align - 1); 24,847 ( 0.01%) let len = ctrl_offset.checked_add(buckets + Group::WIDTH)?; . . Some(( . unsafe { Layout::from_size_align_unchecked(len, ctrl_align) }, . ctrl_offset, . )) . } . } . -- line 263 ---------------------------------------- -- line 337 ---------------------------------------- . } . } . #[cfg_attr(feature = "inline-more", inline)] . pub unsafe fn drop(&self) { . self.as_ptr().drop_in_place(); . } . #[inline] . pub unsafe fn read(&self) -> T { 34 ( 0.00%) self.as_ptr().read() . } . #[inline] . pub unsafe fn write(&self, val: T) { . self.as_ptr().write(val); . } . #[inline] . pub unsafe fn as_ref<'a>(&self) -> &'a T { . &*self.as_ptr() -- line 353 ---------------------------------------- -- line 422 ---------------------------------------- . /// Creates a new empty hash table without allocating any memory, using the . /// given allocator. . /// . /// In effect this returns a table with exactly 1 bucket. However we can . /// leave the data pointer dangling since that bucket is never written to . /// due to our load factor forcing us to always have at least 1 free bucket. . #[inline] . pub fn new_in(alloc: A) -> Self { 114 ( 0.00%) Self { . table: RawTableInner::new_in(alloc), . marker: PhantomData, . } . } . . /// Allocates a new hash table with the given number of buckets. . /// . /// The control bytes are left uninitialized. -- line 438 ---------------------------------------- -- line 440 ---------------------------------------- . unsafe fn new_uninitialized( . alloc: A, . buckets: usize, . fallibility: Fallibility, . ) -> Result { . debug_assert!(buckets.is_power_of_two()); . . Ok(Self { 10 ( 0.00%) table: RawTableInner::new_uninitialized( . alloc, . TableLayout::new::(), . buckets, . fallibility, . )?, . marker: PhantomData, . }) . } -- line 456 ---------------------------------------- -- line 458 ---------------------------------------- . /// Attempts to allocate a new hash table with at least enough capacity . /// for inserting the given number of elements without reallocating. . fn fallible_with_capacity( . alloc: A, . capacity: usize, . fallibility: Fallibility, . ) -> Result { . Ok(Self { 703 ( 0.00%) table: RawTableInner::fallible_with_capacity( . alloc, . TableLayout::new::(), . capacity, . fallibility, . )?, . marker: PhantomData, . }) . } -- line 474 ---------------------------------------- -- line 527 ---------------------------------------- . debug_assert_ne!(self.table.bucket_mask, 0); . debug_assert!(index < self.buckets()); . Bucket::from_base_index(self.data_end(), index) . } . . /// Erases an element from the table without dropping it. . #[cfg_attr(feature = "inline-more", inline)] . #[deprecated(since = "0.8.1", note = "use erase or remove instead")] 1,079 ( 0.00%) pub unsafe fn erase_no_drop(&mut self, item: &Bucket) { 1,079 ( 0.00%) let index = self.bucket_index(item); . self.table.erase(index); 2,158 ( 0.00%) } . . /// Erases an element from the table, dropping it in place. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::needless_pass_by_value)] . #[allow(deprecated)] . pub unsafe fn erase(&mut self, item: Bucket) { . // Erase the element from the table first since drop might panic. 224 ( 0.00%) self.erase_no_drop(&item); . item.drop(); . } . . /// Finds and erases an element from the table, dropping it in place. . /// Returns true if an element was found. . #[cfg(feature = "raw")] . #[cfg_attr(feature = "inline-more", inline)] . pub fn erase_entry(&mut self, hash: u64, eq: impl FnMut(&T) -> bool) -> bool { -- line 554 ---------------------------------------- -- line 563 ---------------------------------------- . } . } . . /// Removes an element from the table, returning it. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::needless_pass_by_value)] . #[allow(deprecated)] . pub unsafe fn remove(&mut self, item: Bucket) -> T { 1,934 ( 0.00%) self.erase_no_drop(&item); 17 ( 0.00%) item.read() . } . . /// Finds and removes an element from the table, returning it. . #[cfg_attr(feature = "inline-more", inline)] 71,476 ( 0.03%) pub fn remove_entry(&mut self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option { . // Avoid `Option::map` because it bloats LLVM IR. 20 ( 0.00%) match self.find(hash, eq) { 291 ( 0.00%) Some(bucket) => Some(unsafe { self.remove(bucket) }), 6,470 ( 0.00%) None => None, . } 111,787 ( 0.05%) } . . /// Marks all table buckets as empty without dropping their contents. . #[cfg_attr(feature = "inline-more", inline)] . pub fn clear_no_drop(&mut self) { . self.table.clear_no_drop(); . } . . /// Removes all elements from the table without freeing the backing memory. . #[cfg_attr(feature = "inline-more", inline)] . pub fn clear(&mut self) { . // Ensure that the table is reset even if one of the drops panic . let mut self_ = guard(self, |self_| self_.clear_no_drop()); . unsafe { 1 ( 0.00%) self_.drop_elements(); . } . } . 7 ( 0.00%) unsafe fn drop_elements(&mut self) { 912 ( 0.00%) if mem::needs_drop::() && !self.is_empty() { . for item in self.iter() { . item.drop(); . } . } 8 ( 0.00%) } . . /// Shrinks the table to fit `max(self.len(), min_size)` elements. . #[cfg_attr(feature = "inline-more", inline)] . pub fn shrink_to(&mut self, min_size: usize, hasher: impl Fn(&T) -> u64) { . // Calculate the minimal number of elements that we need to reserve . // space for. . let min_size = usize::max(self.table.items, min_size); . if min_size == 0 { -- line 615 ---------------------------------------- -- line 642 ---------------------------------------- . } . } . } . . /// Ensures that at least `additional` items can be inserted into the table . /// without reallocation. . #[cfg_attr(feature = "inline-more", inline)] . pub fn reserve(&mut self, additional: usize, hasher: impl Fn(&T) -> u64) { 47,553 ( 0.02%) if additional > self.table.growth_left { . // Avoid `Result::unwrap_or_else` because it bloats LLVM IR. 15,027 ( 0.01%) if self . .reserve_rehash(additional, hasher, Fallibility::Infallible) . .is_err() . { . unsafe { hint::unreachable_unchecked() } . } . } . } . -- line 660 ---------------------------------------- -- line 671 ---------------------------------------- . } else { . Ok(()) . } . } . . /// Out-of-line slow path for `reserve` and `try_reserve`. . #[cold] . #[inline(never)] 35,815 ( 0.02%) fn reserve_rehash( . &mut self, . additional: usize, . hasher: impl Fn(&T) -> u64, . fallibility: Fallibility, . ) -> Result<(), TryReserveError> { . unsafe { . self.table.reserve_rehash_inner( . additional, -- line 687 ---------------------------------------- -- line 690 ---------------------------------------- . TableLayout::new::(), . if mem::needs_drop::() { . Some(mem::transmute(ptr::drop_in_place:: as unsafe fn(*mut T))) . } else { . None . }, . ) . } 22,392 ( 0.01%) } . . /// Allocates a new table of a different size and moves the contents of the . /// current table into it. . fn resize( . &mut self, . capacity: usize, . hasher: impl Fn(&T) -> u64, . fallibility: Fallibility, -- line 706 ---------------------------------------- -- line 714 ---------------------------------------- . ) . } . } . . /// Inserts a new element into the table, and returns its raw bucket. . /// . /// This does not check if the given element already exists in the table. . #[cfg_attr(feature = "inline-more", inline)] 399,282 ( 0.20%) pub fn insert(&mut self, hash: u64, value: T, hasher: impl Fn(&T) -> u64) -> Bucket { . unsafe { . let mut index = self.table.find_insert_slot(hash); . . // We can avoid growing the table once we have reached our load . // factor if we are replacing a tombstone. This works since the . // number of EMPTY slots does not change in this case. 544 ( 0.00%) let old_ctrl = *self.table.ctrl(index); 251,520 ( 0.12%) if unlikely(self.table.growth_left == 0 && special_is_empty(old_ctrl)) { . self.reserve(1, hasher); . index = self.table.find_insert_slot(hash); . } . . self.table.record_item_insert_at(index, old_ctrl, hash); . . let bucket = self.bucket(index); 2 ( 0.00%) bucket.write(value); . bucket . } 293,753 ( 0.14%) } . . /// Attempts to insert a new element without growing the table and return its raw bucket. . /// . /// Returns an `Err` containing the given element if inserting it would require growing the . /// table. . /// . /// This does not check if the given element already exists in the table. . #[cfg(feature = "raw")] -- line 749 ---------------------------------------- -- line 760 ---------------------------------------- . } . } . } . . /// Inserts a new element into the table, and returns a mutable reference to it. . /// . /// This does not check if the given element already exists in the table. . #[cfg_attr(feature = "inline-more", inline)] 108,912 ( 0.05%) pub fn insert_entry(&mut self, hash: u64, value: T, hasher: impl Fn(&T) -> u64) -> &mut T { 18 ( 0.00%) unsafe { self.insert(hash, value, hasher).as_mut() } 81,684 ( 0.04%) } . . /// Inserts a new element into the table, without growing the table. . /// . /// There must be enough space in the table to insert the new element. . /// . /// This does not check if the given element already exists in the table. . #[cfg_attr(feature = "inline-more", inline)] . #[cfg(any(feature = "raw", feature = "rustc-internal-api"))] 44 ( 0.00%) pub unsafe fn insert_no_grow(&mut self, hash: u64, value: T) -> Bucket { 63,107 ( 0.03%) let (index, old_ctrl) = self.table.prepare_insert_slot(hash); 725 ( 0.00%) let bucket = self.table.bucket(index); . . // If we are replacing a DELETED entry then we don't need to update . // the load counter. 127,429 ( 0.06%) self.table.growth_left -= special_is_empty(old_ctrl) as usize; . . bucket.write(value); 104,451 ( 0.05%) self.table.items += 1; . bucket 83 ( 0.00%) } . . /// Temporary removes a bucket, applying the given function to the removed . /// element and optionally put back the returned value in the same bucket. . /// . /// Returns `true` if the bucket still contains an element . /// . /// This does not check if the given bucket is actually occupied. . #[cfg_attr(feature = "inline-more", inline)] -- line 798 ---------------------------------------- -- line 813 ---------------------------------------- . true . } else { . false . } . } . . /// Searches for an element in the table. . #[inline] 336 ( 0.00%) pub fn find(&self, hash: u64, mut eq: impl FnMut(&T) -> bool) -> Option> { 221 ( 0.00%) let result = self.table.find_inner(hash, &mut |index| unsafe { 1,591 ( 0.00%) eq(self.bucket(index).as_ref()) 46 ( 0.00%) }); . . // Avoid `Option::map` because it bloats LLVM IR. . match result { 12 ( 0.00%) Some(index) => Some(unsafe { self.bucket(index) }), . None => None, . } 336 ( 0.00%) } . . /// Gets a reference to an element in the table. . #[inline] . pub fn get(&self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option<&T> { . // Avoid `Option::map` because it bloats LLVM IR. 1,399 ( 0.00%) match self.find(hash, eq) { . Some(bucket) => Some(unsafe { bucket.as_ref() }), . None => None, . } . } . . /// Gets a mutable reference to an element in the table. . #[inline] . pub fn get_mut(&mut self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option<&mut T> { . // Avoid `Option::map` because it bloats LLVM IR. 246 ( 0.00%) match self.find(hash, eq) { . Some(bucket) => Some(unsafe { bucket.as_mut() }), . None => None, . } . } . . /// Attempts to get mutable references to `N` entries in the table at once. . /// . /// Returns an array of length `N` with the results of each query. -- line 855 ---------------------------------------- -- line 920 ---------------------------------------- . #[inline] . pub fn len(&self) -> usize { . self.table.items . } . . /// Returns `true` if the table contains no elements. . #[inline] . pub fn is_empty(&self) -> bool { 76,870 ( 0.04%) self.len() == 0 . } . . /// Returns the number of buckets in the table. . #[inline] . pub fn buckets(&self) -> usize { . self.table.bucket_mask + 1 . } . -- line 936 ---------------------------------------- -- line 938 ---------------------------------------- . /// the caller to ensure that the `RawTable` outlives the `RawIter`. . /// Because we cannot make the `next` method unsafe on the `RawIter` . /// struct, we have to make the `iter` method unsafe. . #[inline] . pub unsafe fn iter(&self) -> RawIter { . let data = Bucket::from_base_index(self.data_end(), 0); . RawIter { . iter: RawIterRange::new(self.table.ctrl.as_ptr(), data, self.table.buckets()), 5,466 ( 0.00%) items: self.table.items, . } . } . . /// Returns an iterator over occupied buckets that could match a given hash. . /// . /// `RawTable` only stores 7 bits of the hash value, so this iterator may . /// return items that have a hash value different than the one provided. You . /// should always validate the returned values before using them. -- line 954 ---------------------------------------- -- line 995 ---------------------------------------- . /// Iteration starts at the provided iterator's current location. . /// . /// It is up to the caller to ensure that the iterator is valid for this . /// `RawTable` and covers all items that remain in the table. . pub unsafe fn into_iter_from(self, iter: RawIter) -> RawIntoIter { . debug_assert_eq!(iter.len(), self.len()); . . let alloc = self.table.alloc.clone(); 848 ( 0.00%) let allocation = self.into_allocation(); 636 ( 0.00%) RawIntoIter { 1,060 ( 0.00%) iter, . allocation, . marker: PhantomData, . alloc, . } . } . . /// Converts the table into a raw allocation. The contents of the table . /// should be dropped using a `RawIter` before freeing the allocation. . #[cfg_attr(feature = "inline-more", inline)] . pub(crate) fn into_allocation(self) -> Option<(NonNull, Layout)> { 324 ( 0.00%) let alloc = if self.table.is_empty_singleton() { . None . } else { . // Avoid `Option::unwrap_or_else` because it bloats LLVM IR. . let (layout, ctrl_offset) = match calculate_layout::(self.table.buckets()) { . Some(lco) => lco, . None => unsafe { hint::unreachable_unchecked() }, . }; . Some(( 110 ( 0.00%) unsafe { NonNull::new_unchecked(self.table.ctrl.as_ptr().sub(ctrl_offset)) }, . layout, . )) . }; . mem::forget(self); . alloc . } . } . -- line 1033 ---------------------------------------- -- line 1042 ---------------------------------------- . T: Sync, . A: Sync, . { . } . . impl RawTableInner { . #[inline] . const fn new_in(alloc: A) -> Self { 39,424 ( 0.02%) Self { . // Be careful to cast the entire slice to a raw pointer. . ctrl: unsafe { NonNull::new_unchecked(Group::static_empty() as *const _ as *mut u8) }, . bucket_mask: 0, . items: 0, . growth_left: 0, . alloc, . } . } . } . . impl RawTableInner { . #[cfg_attr(feature = "inline-more", inline)] 31,052 ( 0.02%) unsafe fn new_uninitialized( . alloc: A, . table_layout: TableLayout, . buckets: usize, . fallibility: Fallibility, . ) -> Result { . debug_assert!(buckets.is_power_of_two()); . . // Avoid `Option::ok_or_else` because it bloats LLVM IR. -- line 1071 ---------------------------------------- -- line 1078 ---------------------------------------- . // exceed `isize::MAX`. We can skip this check on 64-bit systems since . // such allocations will never succeed anyways. . // . // This mirrors what Vec does in the standard library. . if mem::size_of::() < 8 && layout.size() > isize::MAX as usize { . return Err(fallibility.capacity_overflow()); . } . 7,760 ( 0.00%) let ptr: NonNull = match do_alloc(&alloc, layout) { . Ok(block) => block.cast(), . Err(_) => return Err(fallibility.alloc_err(layout)), . }; . . let ctrl = NonNull::new_unchecked(ptr.as_ptr().add(ctrl_offset)); 18,186 ( 0.01%) Ok(Self { . ctrl, 7,529 ( 0.00%) bucket_mask: buckets - 1, . items: 0, . growth_left: bucket_mask_to_capacity(buckets - 1), . alloc, . }) 22,722 ( 0.01%) } . . #[inline] 3,289 ( 0.00%) fn fallible_with_capacity( . alloc: A, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result { 838 ( 0.00%) if capacity == 0 { 334 ( 0.00%) Ok(Self::new_in(alloc)) . } else { . unsafe { . let buckets = . capacity_to_buckets(capacity).ok_or_else(|| fallibility.capacity_overflow())?; . 14,356 ( 0.01%) let result = Self::new_uninitialized(alloc, table_layout, buckets, fallibility)?; . result.ctrl(0).write_bytes(EMPTY, result.num_ctrl_bytes()); . 2,088 ( 0.00%) Ok(result) . } . } 3,289 ( 0.00%) } . . /// Searches for an empty or deleted bucket which is suitable for inserting . /// a new element and sets the hash for that slot. . /// . /// There must be at least 1 empty bucket in the table. . #[inline] 21,340 ( 0.01%) unsafe fn prepare_insert_slot(&self, hash: u64) -> (usize, u8) { . let index = self.find_insert_slot(hash); 21,340 ( 0.01%) let old_ctrl = *self.ctrl(index); . self.set_ctrl_h2(index, hash); . (index, old_ctrl) 42,680 ( 0.02%) } . . /// Searches for an empty or deleted bucket which is suitable for inserting . /// a new element. . /// . /// There must be at least 1 empty bucket in the table. . #[inline] . fn find_insert_slot(&self, hash: u64) -> usize { . let mut probe_seq = self.probe_seq(hash); . loop { . unsafe { . let group = Group::load(self.ctrl(probe_seq.pos)); 166,900 ( 0.08%) if let Some(bit) = group.match_empty_or_deleted().lowest_set_bit() { 485,085 ( 0.24%) let result = (probe_seq.pos + bit) & self.bucket_mask; . . // In tables smaller than the group width, trailing control . // bytes outside the range of the table are filled with . // EMPTY entries. These will unfortunately trigger a . // match, but once masked may point to a full bucket that . // is already occupied. We detect this situation here and . // perform a second scan starting at the beginning of the . // table. This second scan is guaranteed to find an empty . // slot (due to the load factor) before hitting the trailing . // control bytes (containing EMPTY). 224,556 ( 0.11%) if unlikely(is_full(*self.ctrl(result))) { . debug_assert!(self.bucket_mask < Group::WIDTH); . debug_assert_ne!(probe_seq.pos, 0); . return Group::load_aligned(self.ctrl(0)) . .match_empty_or_deleted() . .lowest_set_bit_nonzero(); . } . . return result; -- line 1165 ---------------------------------------- -- line 1171 ---------------------------------------- . . /// Searches for an element in the table. This uses dynamic dispatch to reduce the amount of . /// code generated, but it is eliminated by LLVM optimizations. . #[inline] . fn find_inner(&self, hash: u64, eq: &mut dyn FnMut(usize) -> bool) -> Option { . let h2_hash = h2(hash); . let mut probe_seq = self.probe_seq(hash); . 3,356 ( 0.00%) loop { . let group = unsafe { Group::load(self.ctrl(probe_seq.pos)) }; . 314,173 ( 0.15%) for bit in group.match_byte(h2_hash) { 471,571 ( 0.23%) let index = (probe_seq.pos + bit) & self.bucket_mask; . 339,585 ( 0.17%) if likely(eq(index)) { . return Some(index); . } . } . 138,129 ( 0.07%) if likely(group.match_empty().any_bit_set()) { . return None; . } . . probe_seq.move_next(self.bucket_mask); . } . } . . #[allow(clippy::mut_mut)] -- line 1198 ---------------------------------------- -- line 1225 ---------------------------------------- . Bucket::from_base_index(self.data_end(), index) . } . . #[inline] . unsafe fn bucket_ptr(&self, index: usize, size_of: usize) -> *mut u8 { . debug_assert_ne!(self.bucket_mask, 0); . debug_assert!(index < self.buckets()); . let base: *mut u8 = self.data_end().as_ptr(); 593,880 ( 0.29%) base.sub((index + 1) * size_of) . } . . #[inline] . unsafe fn data_end(&self) -> NonNull { . NonNull::new_unchecked(self.ctrl.as_ptr().cast()) . } . . /// Returns an iterator-like object for a probe sequence on the table. . /// . /// This iterator never terminates, but is guaranteed to visit each bucket . /// group exactly once. The loop using `probe_seq` must terminate upon . /// reaching a group containing an empty bucket. . #[inline] . fn probe_seq(&self, hash: u64) -> ProbeSeq { . ProbeSeq { 2,202,009 ( 1.08%) pos: h1(hash) & self.bucket_mask, . stride: 0, . } . } . . /// Returns the index of a bucket for which a value must be inserted if there is enough rooom . /// in the table, otherwise returns error . #[cfg(feature = "raw")] . #[inline] -- line 1257 ---------------------------------------- -- line 1263 ---------------------------------------- . } else { . self.record_item_insert_at(index, old_ctrl, hash); . Ok(index) . } . } . . #[inline] . unsafe fn record_item_insert_at(&mut self, index: usize, old_ctrl: u8, hash: u64) { 314,370 ( 0.15%) self.growth_left -= special_is_empty(old_ctrl) as usize; . self.set_ctrl_h2(index, hash); 251,496 ( 0.12%) self.items += 1; . } . . #[inline] . fn is_in_same_group(&self, i: usize, new_i: usize, hash: u64) -> bool { . let probe_seq_pos = self.probe_seq(hash).pos; . let probe_index = . |pos: usize| (pos.wrapping_sub(probe_seq_pos) & self.bucket_mask) / Group::WIDTH; . probe_index(i) == probe_index(new_i) -- line 1281 ---------------------------------------- -- line 1312 ---------------------------------------- . // replicate the buckets at the end of the trailing group. For example . // with 2 buckets and a group size of 4, the control bytes will look . // like this: . // . // Real | Replicated . // --------------------------------------------- . // | [A] | [B] | [EMPTY] | [EMPTY] | [A] | [B] | . // --------------------------------------------- 475,464 ( 0.23%) let index2 = ((index.wrapping_sub(Group::WIDTH)) & self.bucket_mask) + Group::WIDTH; . 158,488 ( 0.08%) *self.ctrl(index) = ctrl; 158,519 ( 0.08%) *self.ctrl(index2) = ctrl; . } . . /// Returns a pointer to a control byte. . #[inline] . unsafe fn ctrl(&self, index: usize) -> *mut u8 { . debug_assert!(index < self.num_ctrl_bytes()); . self.ctrl.as_ptr().add(index) . } . . #[inline] . fn buckets(&self) -> usize { 19,211 ( 0.01%) self.bucket_mask + 1 . } . . #[inline] . fn num_ctrl_bytes(&self) -> usize { 19,665 ( 0.01%) self.bucket_mask + 1 + Group::WIDTH . } . . #[inline] . fn is_empty_singleton(&self) -> bool { 75,024 ( 0.04%) self.bucket_mask == 0 . } . . #[allow(clippy::mut_mut)] . #[inline] . unsafe fn prepare_resize( . &self, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result, TryReserveError> { . debug_assert!(self.items <= capacity); . . // Allocate and initialize the new table. 714 ( 0.00%) let mut new_table = RawTableInner::fallible_with_capacity( . self.alloc.clone(), . table_layout, . capacity, . fallibility, . )?; 9,444 ( 0.00%) new_table.growth_left -= self.items; . new_table.items = self.items; . . // The hash function may panic, in which case we simply free the new . // table without dropping any elements that may have been copied into . // it. . // . // This guard is also used to free the old table on success, see . // the comment at the bottom of this function. . Ok(guard(new_table, move |self_| { 4,386 ( 0.00%) if !self_.is_empty_singleton() { . self_.free_buckets(table_layout); . } . })) . } . . /// Reserves or rehashes to make room for `additional` more elements. . /// . /// This uses dynamic dispatch to reduce the amount of -- line 1383 ---------------------------------------- -- line 1388 ---------------------------------------- . &mut self, . additional: usize, . hasher: &dyn Fn(&mut Self, usize) -> u64, . fallibility: Fallibility, . layout: TableLayout, . drop: Option, . ) -> Result<(), TryReserveError> { . // Avoid `Option::ok_or_else` because it bloats LLVM IR. 8,772 ( 0.00%) let new_items = match self.items.checked_add(additional) { . Some(new_items) => new_items, . None => return Err(fallibility.capacity_overflow()), . }; 8,772 ( 0.00%) let full_capacity = bucket_mask_to_capacity(self.bucket_mask); 18,345 ( 0.01%) if new_items <= full_capacity / 2 { . // Rehash in-place without re-allocating if we have plenty of spare . // capacity that is locked up due to DELETED entries. . self.rehash_in_place(hasher, layout.size, drop); . Ok(()) . } else { . // Otherwise, conservatively resize to at least the next size up . // to avoid churning deletes into frequent rehashes. . self.resize_inner( 4,386 ( 0.00%) usize::max(new_items, full_capacity + 1), . hasher, . fallibility, . layout, . ) . } . } . . /// Allocates a new table of a different size and moves the contents of the -- line 1418 ---------------------------------------- -- line 1424 ---------------------------------------- . #[inline(always)] . unsafe fn resize_inner( . &mut self, . capacity: usize, . hasher: &dyn Fn(&mut Self, usize) -> u64, . fallibility: Fallibility, . layout: TableLayout, . ) -> Result<(), TryReserveError> { 1,766 ( 0.00%) let mut new_table = self.prepare_resize(layout, capacity, fallibility)?; . . // Copy all elements to the new table. . for i in 0..self.buckets() { 87,990 ( 0.04%) if !is_full(*self.ctrl(i)) { . continue; . } . . // This may panic. . let hash = hasher(self, i); . . // We can use a simpler version of insert() here since: . // - there are no DELETED entries. -- line 1444 ---------------------------------------- -- line 1454 ---------------------------------------- . } . . // We successfully copied all elements without panicking. Now replace . // self with the new table. The old table will have its memory freed but . // the items will not be dropped (since they have been moved into the . // new table). . mem::swap(self, &mut new_table); . 4,386 ( 0.00%) Ok(()) . } . . /// Rehashes the contents of the table in place (i.e. without changing the . /// allocation). . /// . /// If `hasher` panics then some the table's contents may be lost. . /// . /// This uses dynamic dispatch to reduce the amount of -- line 1470 ---------------------------------------- -- line 1554 ---------------------------------------- . #[inline] . unsafe fn free_buckets(&mut self, table_layout: TableLayout) { . // Avoid `Option::unwrap_or_else` because it bloats LLVM IR. . let (layout, ctrl_offset) = match table_layout.calculate_layout_for(self.buckets()) { . Some(lco) => lco, . None => hint::unreachable_unchecked(), . }; . self.alloc.deallocate( 2,518 ( 0.00%) NonNull::new_unchecked(self.ctrl.as_ptr().sub(ctrl_offset)), . layout, . ); . } . . /// Marks all table buckets as empty without dropping their contents. . #[inline] . fn clear_no_drop(&mut self) { 779 ( 0.00%) if !self.is_empty_singleton() { . unsafe { . self.ctrl(0).write_bytes(EMPTY, self.num_ctrl_bytes()); . } . } 848 ( 0.00%) self.items = 0; 779 ( 0.00%) self.growth_left = bucket_mask_to_capacity(self.bucket_mask); . } . . #[inline] . unsafe fn erase(&mut self, index: usize) { . debug_assert!(is_full(*self.ctrl(index))); 18,992 ( 0.01%) let index_before = index.wrapping_sub(Group::WIDTH) & self.bucket_mask; . let empty_before = Group::load(self.ctrl(index_before)).match_empty(); . let empty_after = Group::load(self.ctrl(index)).match_empty(); . . // If we are inside a continuous block of Group::WIDTH full or deleted . // cells then a probe window may have seen a full block when trying to . // insert. We therefore need to keep that block non-empty so that . // lookups will continue searching to the next probe window. . // . // Note that in this context `leading_zeros` refers to the bytes at the . // end of a group, while `trailing_zeros` refers to the bytes at the . // beginning of a group. 75,968 ( 0.04%) let ctrl = if empty_before.leading_zeros() + empty_after.trailing_zeros() >= Group::WIDTH { . DELETED . } else { 94,960 ( 0.05%) self.growth_left += 1; . EMPTY . }; . self.set_ctrl(index, ctrl); 75,968 ( 0.04%) self.items -= 1; . } . } . . impl Clone for RawTable { 320 ( 0.00%) fn clone(&self) -> Self { 40 ( 0.00%) if self.table.is_empty_singleton() { . Self::new_in(self.table.alloc.clone()) . } else { . unsafe { . let mut new_table = ManuallyDrop::new( . // Avoid `Result::ok_or_else` because it bloats LLVM IR. . match Self::new_uninitialized( . self.table.alloc.clone(), . self.table.buckets(), -- line 1615 ---------------------------------------- -- line 1624 ---------------------------------------- . // We need to free the memory allocated for the new table. . new_table.free_buckets(); . }); . . // Return the newly created table. . ManuallyDrop::into_inner(new_table) . } . } 360 ( 0.00%) } . . fn clone_from(&mut self, source: &Self) { . if source.table.is_empty_singleton() { . *self = Self::new_in(self.table.alloc.clone()); . } else { . unsafe { . // First, drop all our elements without clearing the control bytes. . self.drop_elements(); -- line 1640 ---------------------------------------- -- line 1687 ---------------------------------------- . .table . .ctrl(0) . .copy_to_nonoverlapping(self.table.ctrl(0), self.table.num_ctrl_bytes()); . source . .data_start() . .copy_to_nonoverlapping(self.data_start(), self.table.buckets()); . . self.table.items = source.table.items; 4 ( 0.00%) self.table.growth_left = source.table.growth_left; . } . } . . impl RawTable { . /// Common code for clone and clone_from. Assumes `self.buckets() == source.buckets()`. . #[cfg_attr(feature = "inline-more", inline)] . unsafe fn clone_from_impl(&mut self, source: &Self, mut on_panic: impl FnMut(&mut Self)) { . // Copy the control bytes unchanged. We do this in a single pass -- line 1703 ---------------------------------------- -- line 1790 ---------------------------------------- . fn default() -> Self { . Self::new_in(Default::default()) . } . } . . #[cfg(feature = "nightly")] . unsafe impl<#[may_dangle] T, A: Allocator + Clone> Drop for RawTable { . #[cfg_attr(feature = "inline-more", inline)] 43,732 ( 0.02%) fn drop(&mut self) { 31,532 ( 0.02%) if !self.table.is_empty_singleton() { . unsafe { . self.drop_elements(); . self.free_buckets(); . } . } 47,036 ( 0.02%) } . } . #[cfg(not(feature = "nightly"))] . impl Drop for RawTable { . #[cfg_attr(feature = "inline-more", inline)] . fn drop(&mut self) { . if !self.table.is_empty_singleton() { . unsafe { . self.drop_elements(); -- line 1813 ---------------------------------------- -- line 1817 ---------------------------------------- . } . } . . impl IntoIterator for RawTable { . type Item = T; . type IntoIter = RawIntoIter; . . #[cfg_attr(feature = "inline-more", inline)] 848 ( 0.00%) fn into_iter(self) -> RawIntoIter { . unsafe { . let iter = self.iter(); . self.into_iter_from(iter) . } 1,060 ( 0.00%) } . } . . /// Iterator over a sub-range of a table. Unlike `RawIter` this iterator does . /// not track an item count. . pub(crate) struct RawIterRange { . // Mask of full buckets in the current group. Bits are cleared from this . // mask as each element is processed. . current_group: BitMask, -- line 1838 ---------------------------------------- -- line 1934 ---------------------------------------- . . impl Iterator for RawIterRange { . type Item = Bucket; . . #[cfg_attr(feature = "inline-more", inline)] . fn next(&mut self) -> Option> { . unsafe { . loop { 13,165 ( 0.01%) if let Some(index) = self.current_group.lowest_set_bit() { 1,779 ( 0.00%) self.current_group = self.current_group.remove_lowest_bit(); 3,029 ( 0.00%) return Some(self.data.next_n(index)); . } . 11,518 ( 0.01%) if self.next_ctrl >= self.end { . return None; . } . . // We might read past self.end up to the next group boundary, . // but this is fine because it only occurs on tables smaller . // than the group size where the trailing control bytes are all . // EMPTY. On larger tables self.end is guaranteed to be aligned . // to the group size (since tables are power-of-two sized). 292 ( 0.00%) self.current_group = Group::load_aligned(self.next_ctrl).match_full(); 210 ( 0.00%) self.data = self.data.next_n(Group::WIDTH); 507 ( 0.00%) self.next_ctrl = self.next_ctrl.add(Group::WIDTH); . } . } . } . . #[inline] . fn size_hint(&self) -> (usize, Option) { . // We don't have an item count, so just guess based on the range size. . ( -- line 1966 ---------------------------------------- -- line 2102 ---------------------------------------- . } . } else { . // We must have already iterated past the removed item. . } . } . } . . unsafe fn drop_elements(&mut self) { 347 ( 0.00%) if mem::needs_drop::() && self.len() != 0 { . for item in self { . item.drop(); . } . } . } . } . . impl Clone for RawIter { -- line 2118 ---------------------------------------- -- line 2124 ---------------------------------------- . } . } . } . . impl Iterator for RawIter { . type Item = Bucket; . . #[cfg_attr(feature = "inline-more", inline)] 2,279 ( 0.00%) fn next(&mut self) -> Option> { 5,148 ( 0.00%) if let Some(b) = self.iter.next() { 16,191 ( 0.01%) self.items -= 1; . Some(b) . } else { . // We don't check against items == 0 here to allow the . // compiler to optimize away the item count entirely if the . // iterator length is never queried. . debug_assert_eq!(self.items, 0); . None . } 4,558 ( 0.00%) } . . #[inline] . fn size_hint(&self) -> (usize, Option) { . (self.items, Some(self.items)) . } . } . . impl ExactSizeIterator for RawIter {} -- line 2151 ---------------------------------------- -- line 2177 ---------------------------------------- . T: Sync, . A: Sync, . { . } . . #[cfg(feature = "nightly")] . unsafe impl<#[may_dangle] T, A: Allocator + Clone> Drop for RawIntoIter { . #[cfg_attr(feature = "inline-more", inline)] 662 ( 0.00%) fn drop(&mut self) { . unsafe { . // Drop all remaining elements . self.iter.drop_elements(); . . // Free the table 1,493 ( 0.00%) if let Some((ptr, layout)) = self.allocation { . self.alloc.deallocate(ptr, layout); . } . } 150 ( 0.00%) } . } . #[cfg(not(feature = "nightly"))] . impl Drop for RawIntoIter { . #[cfg_attr(feature = "inline-more", inline)] . fn drop(&mut self) { . unsafe { . // Drop all remaining elements . self.iter.drop_elements(); -- line 2203 ---------------------------------------- -- line 2209 ---------------------------------------- . } . } . } . . impl Iterator for RawIntoIter { . type Item = T; . . #[cfg_attr(feature = "inline-more", inline)] 70 ( 0.00%) fn next(&mut self) -> Option { 39 ( 0.00%) unsafe { Some(self.iter.next()?.read()) } 140 ( 0.00%) } . . #[inline] . fn size_hint(&self) -> (usize, Option) { 3 ( 0.00%) self.iter.size_hint() . } . } . . impl ExactSizeIterator for RawIntoIter {} . impl FusedIterator for RawIntoIter {} . . /// Iterator which consumes elements without freeing the table storage. . pub struct RawDrain<'a, T, A: Allocator + Clone = Global> { -- line 2231 ---------------------------------------- -- line 2259 ---------------------------------------- . where . T: Sync, . A: Sync, . { . } . . impl Drop for RawDrain<'_, T, A> { . #[cfg_attr(feature = "inline-more", inline)] 72 ( 0.00%) fn drop(&mut self) { . unsafe { . // Drop all remaining elements. Note that this may panic. . self.iter.drop_elements(); . . // Reset the contents of the table now that all elements have been . // dropped. . self.table.clear_no_drop(); . . // Move the now empty table back to its original location. 9 ( 0.00%) self.orig_table . .as_ptr() . .copy_from_nonoverlapping(&*self.table, 1); . } 72 ( 0.00%) } . } . . impl Iterator for RawDrain<'_, T, A> { . type Item = T; . . #[cfg_attr(feature = "inline-more", inline)] . fn next(&mut self) -> Option { . unsafe { -- line 2289 ---------------------------------------- 1,109,199 ( 0.54%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/source_map.rs -------------------------------------------------------------------------------- Ir -- line 72 ---------------------------------------- . fn deref(&self) -> &Self::Target { . &self.0 . } . } . . impl !DerefMut for MonotonicVec {} . } . 1,016 ( 0.00%) #[derive(Clone, Encodable, Decodable, Debug, Copy, HashStable_Generic)] . pub struct Spanned { 4 ( 0.00%) pub node: T, . pub span: Span, . } . . pub fn respan(sp: Span, t: T) -> Spanned { 714 ( 0.00%) Spanned { node: t, span: sp } 375 ( 0.00%) } . . pub fn dummy_spanned(t: T) -> Spanned { . respan(DUMMY_SP, t) . } . . // _____________________________________________________________________________ . // SourceFile, MultiByteChar, FileName, FileLines . // -- line 96 ---------------------------------------- -- line 103 ---------------------------------------- . /// Read the contents of a UTF-8 file into memory. . fn read_file(&self, path: &Path) -> io::Result; . } . . /// A FileLoader that uses std::fs to load real files. . pub struct RealFileLoader; . . impl FileLoader for RealFileLoader { 16 ( 0.00%) fn file_exists(&self, path: &Path) -> bool { . path.exists() 16 ( 0.00%) } . 4 ( 0.00%) fn read_file(&self, path: &Path) -> io::Result { . fs::read_to_string(path) 6 ( 0.00%) } . } . . /// This is a [SourceFile] identifier that is used to correlate source files between . /// subsequent compilation sessions (which is something we need to do during . /// incremental compilation). . /// . /// The [StableSourceFileId] also contains the CrateNum of the crate the source . /// file was originally parsed for. This way we get two separate entries in -- line 125 ---------------------------------------- -- line 128 ---------------------------------------- . /// at the point where we discover that there's a local use of the file in . /// addition to the upstream one, we might already have made decisions based on . /// the assumption that it's an upstream file. Treating the two files as . /// different has no real downsides. . #[derive(Copy, Clone, PartialEq, Eq, Hash, Encodable, Decodable, Debug)] . pub struct StableSourceFileId { . // A hash of the source file's FileName. This is hash so that it's size . // is more predictable than if we included the actual FileName value. 48 ( 0.00%) pub file_name_hash: u64, . . // The CrateNum of the crate this source file was originally parsed for. . // We cannot include this information in the hash because at the time . // of hashing we don't have the context to map from the CrateNum's numeric . // value to a StableCrateId. . pub cnum: CrateNum, . } . . // FIXME: we need a more globally consistent approach to the problem solved by . // StableSourceFileId, perhaps built atop source_file.name_hash. . impl StableSourceFileId { . pub fn new(source_file: &SourceFile) -> StableSourceFileId { 1,084 ( 0.00%) StableSourceFileId::new_from_name(&source_file.name, source_file.cnum) . } . 2,730 ( 0.00%) fn new_from_name(name: &FileName, cnum: CrateNum) -> StableSourceFileId { . let mut hasher = StableHasher::new(); 546 ( 0.00%) name.hash(&mut hasher); . StableSourceFileId { file_name_hash: hasher.finish(), cnum } 3,276 ( 0.00%) } . } . . // _____________________________________________________________________________ . // SourceMap . // . . #[derive(Default)] . pub(super) struct SourceMapFiles { -- line 164 ---------------------------------------- -- line 176 ---------------------------------------- . // `--remap-path-prefix` to all `SourceFile`s allocated within this `SourceMap`. . path_mapping: FilePathMapping, . . /// The algorithm used for hashing the contents of each source file. . hash_kind: SourceFileHashAlgorithm, . } . . impl SourceMap { 2 ( 0.00%) pub fn new(path_mapping: FilePathMapping) -> SourceMap { . Self::with_file_loader_and_hash_kind( . Box::new(RealFileLoader), 8 ( 0.00%) path_mapping, . SourceFileHashAlgorithm::Md5, . ) 2 ( 0.00%) } . 1 ( 0.00%) pub fn with_file_loader_and_hash_kind( . file_loader: Box, . path_mapping: FilePathMapping, . hash_kind: SourceFileHashAlgorithm, . ) -> SourceMap { 17 ( 0.00%) SourceMap { . used_address_space: AtomicU32::new(0), . files: Default::default(), . file_loader, 4 ( 0.00%) path_mapping, . hash_kind, . } 1 ( 0.00%) } . . pub fn path_mapping(&self) -> &FilePathMapping { 4 ( 0.00%) &self.path_mapping 4 ( 0.00%) } . . pub fn file_exists(&self, path: &Path) -> bool { 20 ( 0.00%) self.file_loader.file_exists(path) . } . 22 ( 0.00%) pub fn load_file(&self, path: &Path) -> io::Result> { 8 ( 0.00%) let src = self.file_loader.read_file(path)?; . let filename = path.to_owned().into(); 36 ( 0.00%) Ok(self.new_source_file(filename, src)) 18 ( 0.00%) } . . /// Loads source file as a binary blob. . /// . /// Unlike `load_file`, guarantees that no normalization like BOM-removal . /// takes place. . pub fn load_binary_file(&self, path: &Path) -> io::Result> { . // Ideally, this should use `self.file_loader`, but it can't . // deal with binary files yet. -- line 226 ---------------------------------------- -- line 233 ---------------------------------------- . // empty string. . let text = std::str::from_utf8(&bytes).unwrap_or("").to_string(); . self.new_source_file(path.to_owned().into(), text); . Ok(bytes) . } . . // By returning a `MonotonicVec`, we ensure that consumers cannot invalidate . // any existing indices pointing into `files`. 49 ( 0.00%) pub fn files(&self) -> MappedReadGuard<'_, monotonic::MonotonicVec>> { . ReadGuard::map(self.files.borrow(), |files| &files.source_files) 147 ( 0.00%) } . 16 ( 0.00%) pub fn source_file_by_stable_id( . &self, . stable_id: StableSourceFileId, . ) -> Option> { . self.files.borrow().stable_id_to_source_file.get(&stable_id).cloned() 20 ( 0.00%) } . . fn allocate_address_space(&self, size: usize) -> Result { 546 ( 0.00%) let size = u32::try_from(size).map_err(|_| OffsetOverflowError)?; . . loop { 546 ( 0.00%) let current = self.used_address_space.load(Ordering::Relaxed); 1,638 ( 0.00%) let next = current . .checked_add(size) . // Add one so there is some space between files. This lets us distinguish . // positions in the `SourceMap`, even in the presence of zero-length files. . .and_then(|next| next.checked_add(1)) . .ok_or(OffsetOverflowError)?; . . if self . .used_address_space -- line 265 ---------------------------------------- -- line 269 ---------------------------------------- . return Ok(usize::try_from(current).unwrap()); . } . } . } . . /// Creates a new `SourceFile`. . /// If a file already exists in the `SourceMap` with the same ID, that file is returned . /// unmodified. 32 ( 0.00%) pub fn new_source_file(&self, filename: FileName, src: String) -> Lrc { 48 ( 0.00%) self.try_new_source_file(filename, src).unwrap_or_else(|OffsetOverflowError| { . eprintln!("fatal error: rustc does not support files larger than 4GB"); . crate::fatal_error::FatalError.raise() . }) 36 ( 0.00%) } . . fn try_new_source_file( . &self, . filename: FileName, . src: String, . ) -> Result, OffsetOverflowError> { . // Note that filename may not be a valid path, eg it may be `` etc, . // but this is okay because the directory determined by `path.pop()` will . // be empty, so the working directory will be used. 52 ( 0.00%) let (filename, _) = self.path_mapping.map_filename_prefix(&filename); . 8 ( 0.00%) let file_id = StableSourceFileId::new_from_name(&filename, LOCAL_CRATE); . 24 ( 0.00%) let lrc_sf = match self.source_file_by_stable_id(file_id) { . Some(lrc_sf) => lrc_sf, . None => { . let start_pos = self.allocate_address_space(src.len())?; . 24 ( 0.00%) let source_file = Lrc::new(SourceFile::new( 36 ( 0.00%) filename, 12 ( 0.00%) src, . Pos::from_usize(start_pos), . self.hash_kind, . )); . . // Let's make sure the file_id we generated above actually matches . // the ID we generate for the SourceFile we just created. . debug_assert_eq!(StableSourceFileId::new(&source_file), file_id); . -- line 311 ---------------------------------------- -- line 319 ---------------------------------------- . }; . Ok(lrc_sf) . } . . /// Allocates a new `SourceFile` representing a source file from an external . /// crate. The source code of such an "imported `SourceFile`" is not available, . /// but we still know enough to generate accurate debuginfo location . /// information for things inlined from other crates. 4,336 ( 0.00%) pub fn new_imported_source_file( . &self, . filename: FileName, . src_hash: SourceFileHash, . name_hash: u128, . source_len: usize, . cnum: CrateNum, . mut file_local_lines: Vec, . mut file_local_multibyte_chars: Vec, -- line 335 ---------------------------------------- -- line 341 ---------------------------------------- . let start_pos = self . .allocate_address_space(source_len) . .expect("not enough address space for imported source file"); . . let end_pos = Pos::from_usize(start_pos + source_len); . let start_pos = Pos::from_usize(start_pos); . . for pos in &mut file_local_lines { 361,233 ( 0.18%) *pos = *pos + start_pos; . } . . for mbc in &mut file_local_multibyte_chars { 801 ( 0.00%) mbc.pos = mbc.pos + start_pos; . } . . for swc in &mut file_local_non_narrow_chars { 616 ( 0.00%) *swc = *swc + start_pos; . } . . for nc in &mut file_local_normalized_pos { . nc.pos = nc.pos + start_pos; . } . 1,626 ( 0.00%) let source_file = Lrc::new(SourceFile { 4,336 ( 0.00%) name: filename, . src: None, . src_hash, . external_src: Lock::new(ExternalSource::Foreign { . kind: ExternalSourceKind::AbsentOk, . original_start_pos, . original_end_pos, . }), . start_pos, -- line 373 ---------------------------------------- -- line 383 ---------------------------------------- . let mut files = self.files.borrow_mut(); . . files.source_files.push(source_file.clone()); . files . .stable_id_to_source_file . .insert(StableSourceFileId::new(&source_file), source_file.clone()); . . source_file 4,878 ( 0.00%) } . . // If there is a doctest offset, applies it to the line. . pub fn doctest_offset_line(&self, file: &FileName, orig: usize) -> usize { . match file { . FileName::DocTest(_, offset) => { . if *offset < 0 { . orig - (-(*offset)) as usize . } else { -- line 399 ---------------------------------------- -- line 400 ---------------------------------------- . orig + *offset as usize . } . } . _ => orig, . } . } . . /// Return the SourceFile that contains the given `BytePos` 3 ( 0.00%) pub fn lookup_source_file(&self, pos: BytePos) -> Lrc { 1 ( 0.00%) let idx = self.lookup_source_file_idx(pos); 1 ( 0.00%) (*self.files.borrow().source_files)[idx].clone() 3 ( 0.00%) } . . /// Looks up source information about a `BytePos`. . pub fn lookup_char_pos(&self, pos: BytePos) -> Loc { 5 ( 0.00%) let sf = self.lookup_source_file(pos); 6 ( 0.00%) let (line, col, col_display) = sf.lookup_file_pos_with_col_display(pos); 3 ( 0.00%) Loc { file: sf, line, col, col_display } . } . . // If the corresponding `SourceFile` is empty, does not return a line number. . pub fn lookup_line(&self, pos: BytePos) -> Result> { . let f = self.lookup_source_file(pos); . . match f.lookup_line(pos) { . Some(line) => Ok(SourceFileAndLine { sf: f, line }), -- line 425 ---------------------------------------- -- line 451 ---------------------------------------- . . /// Format the span location to be printed in diagnostics. Must not be emitted . /// to build artifacts as this may leak local file paths. Use span_to_embeddable_string . /// for string suitable for embedding. . pub fn span_to_diagnostic_string(&self, sp: Span) -> String { . self.span_to_string(sp, self.path_mapping.filename_display_for_diagnostics) . } . 11 ( 0.00%) pub fn span_to_filename(&self, sp: Span) -> FileName { 3 ( 0.00%) self.lookup_char_pos(sp.lo()).file.name.clone() 8 ( 0.00%) } . . pub fn filename_for_diagnostics<'a>(&self, filename: &'a FileName) -> FileNameDisplay<'a> { . filename.display(self.path_mapping.filename_display_for_diagnostics) . } . 1,254 ( 0.00%) pub fn is_multiline(&self, sp: Span) -> bool { 456 ( 0.00%) let lo = self.lookup_source_file_idx(sp.lo()); 456 ( 0.00%) let hi = self.lookup_source_file_idx(sp.hi()); 228 ( 0.00%) if lo != hi { . return true; . } 228 ( 0.00%) let f = (*self.files.borrow().source_files)[lo].clone(); . f.lookup_line(sp.lo()) != f.lookup_line(sp.hi()) 1,026 ( 0.00%) } . . #[instrument(skip(self), level = "trace")] . pub fn is_valid_span(&self, sp: Span) -> Result<(Loc, Loc), SpanLinesError> { . let lo = self.lookup_char_pos(sp.lo()); . trace!(?lo); . let hi = self.lookup_char_pos(sp.hi()); . trace!(?hi); . if lo.file.start_pos != hi.file.start_pos { -- line 483 ---------------------------------------- -- line 533 ---------------------------------------- . . /// Extracts the source surrounding the given `Span` using the `extract_source` function. The . /// extract function takes three arguments: a string slice containing the source, an index in . /// the slice for the beginning of the span and an index in the slice for the end of the span. . fn span_to_source(&self, sp: Span, extract_source: F) -> Result . where . F: Fn(&str, usize, usize) -> Result, . { 371 ( 0.00%) let local_begin = self.lookup_byte_offset(sp.lo()); 371 ( 0.00%) let local_end = self.lookup_byte_offset(sp.hi()); . 106 ( 0.00%) if local_begin.sf.start_pos != local_end.sf.start_pos { . Err(SpanSnippetError::DistinctSources(DistinctSources { . begin: (local_begin.sf.name.clone(), local_begin.sf.start_pos), . end: (local_end.sf.name.clone(), local_end.sf.start_pos), . })) . } else { . self.ensure_source_file_source_present(local_begin.sf.clone()); . . let start_index = local_begin.pos.to_usize(); . let end_index = local_end.pos.to_usize(); 53 ( 0.00%) let source_len = (local_begin.sf.end_pos - local_begin.sf.start_pos).to_usize(); . 212 ( 0.00%) if start_index > end_index || end_index > source_len { . return Err(SpanSnippetError::MalformedForSourcemap(MalformedSourceMapPositions { . name: local_begin.sf.name.clone(), . source_len, . begin_pos: local_begin.pos, . end_pos: local_end.pos, . })); . } . 159 ( 0.00%) if let Some(ref src) = local_begin.sf.src { . extract_source(src, start_index, end_index) . } else if let Some(src) = local_begin.sf.external_src.borrow().get_source() { . extract_source(src, start_index, end_index) . } else { . Err(SpanSnippetError::SourceNotAvailable { filename: local_begin.sf.name.clone() }) . } . } . } -- line 573 ---------------------------------------- -- line 579 ---------------------------------------- . pub fn is_local_span(&self, sp: Span) -> bool { . let local_begin = self.lookup_byte_offset(sp.lo()); . let local_end = self.lookup_byte_offset(sp.hi()); . // This might be a weird span that covers multiple files . local_begin.sf.src.is_some() && local_end.sf.src.is_some() . } . . /// Returns the source snippet as `String` corresponding to the given `Span`. 636 ( 0.00%) pub fn span_to_snippet(&self, sp: Span) -> Result { . self.span_to_source(sp, |src, start_index, end_index| { . src.get(start_index..end_index) . .map(|s| s.to_string()) . .ok_or(SpanSnippetError::IllFormedSpan(sp)) . }) 477 ( 0.00%) } . . pub fn span_to_margin(&self, sp: Span) -> Option { . Some(self.indentation_before(sp)?.len()) . } . . pub fn indentation_before(&self, sp: Span) -> Option { . self.span_to_source(sp, |src, start_index, _| { . let before = &src[..start_index]; -- line 601 ---------------------------------------- -- line 679 ---------------------------------------- . } . } . . sp . } . . /// Given a `Span`, tries to get a shorter span ending before the first occurrence of `char` . /// `c`. 495 ( 0.00%) pub fn span_until_char(&self, sp: Span, c: char) -> Span { 180 ( 0.00%) match self.span_to_snippet(sp) { 180 ( 0.00%) Ok(snippet) => { . let snippet = snippet.split(c).next().unwrap_or("").trim_end(); 90 ( 0.00%) if !snippet.is_empty() && !snippet.contains('\n') { 225 ( 0.00%) sp.with_hi(BytePos(sp.lo().0 + snippet.len() as u32)) . } else { . sp . } . } . _ => sp, . } 405 ( 0.00%) } . . /// Given a `Span`, tries to get a shorter span ending just after the first occurrence of `char` . /// `c`. . pub fn span_through_char(&self, sp: Span, c: char) -> Span { . if let Ok(snippet) = self.span_to_snippet(sp) { . if let Some(offset) = snippet.find(c) { . return sp.with_hi(BytePos(sp.lo().0 + (offset + c.len_utf8()) as u32)); . } -- line 707 ---------------------------------------- -- line 750 ---------------------------------------- . /// Given a `Span`, return a span ending in the closest `{`. This is useful when you have a . /// `Span` enclosing a whole item but we need to point at only the head (usually the first . /// line) of that item. . /// . /// *Only suitable for diagnostics.* . pub fn guess_head_span(&self, sp: Span) -> Span { . // FIXME: extend the AST items to have a head span, or replace callers with pointing at . // the item's ident when appropriate. 90 ( 0.00%) self.span_until_char(sp, '{') . } . . /// Returns a new span representing just the first character of the given span. . pub fn start_point(&self, sp: Span) -> Span { . let width = { . let sp = sp.data(); . let local_begin = self.lookup_byte_offset(sp.lo); . let start_index = local_begin.pos.to_usize(); -- line 766 ---------------------------------------- -- line 782 ---------------------------------------- . }, . } . }; . . sp.with_hi(BytePos(sp.lo().0 + width as u32)) . } . . /// Returns a new span representing just the last character of this span. 2,964 ( 0.00%) pub fn end_point(&self, sp: Span) -> Span { . let pos = sp.hi().0; . 988 ( 0.00%) let width = self.find_width_of_character_at_span(sp, false); . let corrected_end_position = pos.checked_sub(width).unwrap_or(pos); . . let end_point = BytePos(cmp::max(corrected_end_position, sp.lo().0)); 2,470 ( 0.00%) sp.with_lo(end_point) . } . . /// Returns a new span representing the next character after the end-point of this span. 341 ( 0.00%) pub fn next_point(&self, sp: Span) -> Span { 31 ( 0.00%) if sp.is_dummy() { . return sp; . } . let start_of_next_point = sp.hi().0; . 124 ( 0.00%) let width = self.find_width_of_character_at_span(sp.shrink_to_hi(), true); . // If the width is 1, then the next span should point to the same `lo` and `hi`. However, . // in the case of a multibyte character, where the width != 1, the next span should . // span multiple bytes to include the whole character. . let end_of_next_point = 62 ( 0.00%) start_of_next_point.checked_add(width - 1).unwrap_or(start_of_next_point); . 62 ( 0.00%) let end_of_next_point = BytePos(cmp::max(sp.lo().0 + 1, end_of_next_point)); . Span::new(BytePos(start_of_next_point), end_of_next_point, sp.ctxt(), None) 279 ( 0.00%) } . . /// Finds the width of the character, either before or after the end of provided span, . /// depending on the `forwards` parameter. 3,336 ( 0.00%) fn find_width_of_character_at_span(&self, sp: Span, forwards: bool) -> u32 { . let sp = sp.data(); 278 ( 0.00%) if sp.lo == sp.hi { . debug!("find_width_of_character_at_span: early return empty span"); . return 1; . } . 1,715 ( 0.00%) let local_begin = self.lookup_byte_offset(sp.lo); 2,205 ( 0.00%) let local_end = self.lookup_byte_offset(sp.hi); . debug!( . "find_width_of_character_at_span: local_begin=`{:?}`, local_end=`{:?}`", . local_begin, local_end . ); . 490 ( 0.00%) if local_begin.sf.start_pos != local_end.sf.start_pos { . debug!("find_width_of_character_at_span: begin and end are in different files"); . return 1; . } . . let start_index = local_begin.pos.to_usize(); . let end_index = local_end.pos.to_usize(); . debug!( . "find_width_of_character_at_span: start_index=`{:?}`, end_index=`{:?}`", . start_index, end_index . ); . . // Disregard indexes that are at the start or end of their spans, they can't fit bigger . // characters. 980 ( 0.00%) if (!forwards && end_index == usize::MIN) || (forwards && start_index == usize::MAX) { . debug!("find_width_of_character_at_span: start or end of span, cannot be multibyte"); . return 1; . } . 245 ( 0.00%) let source_len = (local_begin.sf.end_pos - local_begin.sf.start_pos).to_usize(); . debug!("find_width_of_character_at_span: source_len=`{:?}`", source_len); . // Ensure indexes are also not malformed. 980 ( 0.00%) if start_index > end_index || end_index > source_len { . debug!("find_width_of_character_at_span: source indexes are malformed"); . return 1; . } . . let src = local_begin.sf.external_src.borrow(); . . // We need to extend the snippet to the end of the src rather than to end_index so when . // searching forwards for boundaries we've got somewhere to search. 735 ( 0.00%) let snippet = if let Some(ref src) = local_begin.sf.src { . &src[start_index..] 77 ( 0.00%) } else if let Some(src) = src.get_source() { . &src[start_index..] . } else { . return 1; . }; . debug!("find_width_of_character_at_span: snippet=`{:?}`", snippet); . 1,008 ( 0.00%) let mut target = if forwards { end_index + 1 } else { end_index - 1 }; . debug!("find_width_of_character_at_span: initial target=`{:?}`", target); . 672 ( 0.00%) while !snippet.is_char_boundary(target - start_index) && target < source_len { . target = if forwards { . target + 1 . } else { . match target.checked_sub(1) { . Some(target) => target, . None => { . break; . } . } . }; . debug!("find_width_of_character_at_span: target=`{:?}`", target); . } . debug!("find_width_of_character_at_span: final target=`{:?}`", target); . 672 ( 0.00%) if forwards { (target - end_index) as u32 } else { (end_index - target) as u32 } 2,502 ( 0.00%) } . . pub fn get_source_file(&self, filename: &FileName) -> Option> { . // Remap filename before lookup . let filename = self.path_mapping().map_filename_prefix(filename).0; . for sf in self.files.borrow().source_files.iter() { . if filename == sf.name { . return Some(sf.clone()); . } . } . None . } . . /// For a global `BytePos`, computes the local offset within the containing `SourceFile`. 2,980 ( 0.00%) pub fn lookup_byte_offset(&self, bpos: BytePos) -> SourceFileAndBytePos { 596 ( 0.00%) let idx = self.lookup_source_file_idx(bpos); 1,192 ( 0.00%) let sf = (*self.files.borrow().source_files)[idx].clone(); . let offset = bpos - sf.start_pos; . SourceFileAndBytePos { sf, pos: offset } 2,980 ( 0.00%) } . . // Returns the index of the `SourceFile` (in `self.files`) that contains `pos`. . // This index is guaranteed to be valid for the lifetime of this `SourceMap`, . // since `source_files` is a `MonotonicVec` 3,441 ( 0.00%) pub fn lookup_source_file_idx(&self, pos: BytePos) -> usize { . self.files . .borrow() . .source_files . .binary_search_by_key(&pos, |key| key.start_pos) 2,294 ( 0.00%) .unwrap_or_else(|p| p - 1) 4,588 ( 0.00%) } . . pub fn count_lines(&self) -> usize { . self.files().iter().fold(0, |a, f| a + f.count_lines()) . } . . pub fn generate_fn_name_span(&self, span: Span) -> Option { . let prev_span = self.span_extend_to_prev_str(span, "fn", true); . if let Ok(snippet) = self.span_to_snippet(prev_span) { -- line 931 ---------------------------------------- -- line 1010 ---------------------------------------- . . return Some((sugg_span, new_snippet)); . } . } . . None . } . pub fn ensure_source_file_source_present(&self, source_file: Lrc) -> bool { 371 ( 0.00%) source_file.add_external_src(|| { . match source_file.name { . FileName::Real(ref name) if let Some(local_path) = name.local_path() => { . self.file_loader.read_file(local_path).ok() . } . _ => None, . } . }) . } -- line 1026 ---------------------------------------- -- line 1053 ---------------------------------------- . let span = span.shrink_to_hi().with_hi(BytePos(span.hi().0.checked_add(1)?)); . if self.span_to_snippet(span).as_deref() != Ok(";") { . return None; . } . Some(span) . } . } . 8 ( 0.00%) #[derive(Clone)] . pub struct FilePathMapping { 4 ( 0.00%) mapping: Vec<(PathBuf, PathBuf)>, 2 ( 0.00%) filename_display_for_diagnostics: FileNameDisplayPreference, . } . . impl FilePathMapping { 2 ( 0.00%) pub fn empty() -> FilePathMapping { . FilePathMapping::new(Vec::new()) 2 ( 0.00%) } . 3 ( 0.00%) pub fn new(mapping: Vec<(PathBuf, PathBuf)>) -> FilePathMapping { . let filename_display_for_diagnostics = if mapping.is_empty() { . FileNameDisplayPreference::Local . } else { . FileNameDisplayPreference::Remapped . }; . 20 ( 0.00%) FilePathMapping { mapping, filename_display_for_diagnostics } 3 ( 0.00%) } . . /// Applies any path prefix substitution as defined by the mapping. . /// The return value is the remapped path and a boolean indicating whether . /// the path was affected by the mapping. 63 ( 0.00%) pub fn map_prefix(&self, path: PathBuf) -> (PathBuf, bool) { . // NOTE: We are iterating over the mapping entries from last to first . // because entries specified later on the command line should . // take precedence. . for &(ref from, ref to) in self.mapping.iter().rev() { . if let Ok(rest) = path.strip_prefix(from) { . return (to.join(rest), true); . } . } . 35 ( 0.00%) (path, false) 63 ( 0.00%) } . 32 ( 0.00%) fn map_filename_prefix(&self, file: &FileName) -> (FileName, bool) { 8 ( 0.00%) match file { 4 ( 0.00%) FileName::Real(realfile) if let RealFileName::LocalPath(local_path) = realfile => { 28 ( 0.00%) let (mapped_path, mapped) = self.map_prefix(local_path.to_path_buf()); 2 ( 0.00%) let realfile = if mapped { . RealFileName::Remapped { . local_path: Some(local_path.clone()), . virtual_name: mapped_path, . } . } else { . realfile.clone() . }; 20 ( 0.00%) (FileName::Real(realfile), mapped) 8 ( 0.00%) } . FileName::Real(_) => unreachable!("attempted to remap an already remapped filename"), 22 ( 0.00%) other => (other.clone(), false), . } 16 ( 0.00%) } . } 7,000 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs -------------------------------------------------------------------------------- Ir -- line 70 ---------------------------------------- . . impl<'a, T> $name<'a, T> { . // Helper function for creating a slice from the iterator. . #[inline(always)] . fn make_slice(&self) -> &'a [T] { . // SAFETY: the iterator was created from a slice with pointer . // `self.ptr` and length `len!(self)`. This guarantees that all . // the prerequisites for `from_raw_parts` are fulfilled. 20,959 ( 0.01%) unsafe { from_raw_parts(self.ptr.as_ptr(), len!(self)) } . } . . // Helper function for moving the start of the iterator forwards by `offset` elements, . // returning the old start. . // Unsafe because the offset must not exceed `self.len()`. . #[inline(always)] . unsafe fn post_inc_start(&mut self, offset: isize) -> * $raw_mut T { . if mem::size_of::() == 0 { . zst_shrink!(self, offset); . self.ptr.as_ptr() . } else { . let old = self.ptr.as_ptr(); . // SAFETY: the caller guarantees that `offset` doesn't exceed `self.len()`, . // so this new pointer is inside `self` and thus guaranteed to be non-null. 67,827 ( 0.03%) self.ptr = unsafe { NonNull::new_unchecked(self.ptr.as_ptr().offset(offset)) }; . old . } . } . . // Helper function for moving the end of the iterator backwards by `offset` elements, . // returning the new end. . // Unsafe because the offset must not exceed `self.len()`. . #[inline(always)] -- line 101 ---------------------------------------- -- line 102 ---------------------------------------- . unsafe fn pre_dec_end(&mut self, offset: isize) -> * $raw_mut T { . if mem::size_of::() == 0 { . zst_shrink!(self, offset); . self.ptr.as_ptr() . } else { . // SAFETY: the caller guarantees that `offset` doesn't exceed `self.len()`, . // which is guaranteed to not overflow an `isize`. Also, the resulting pointer . // is in bounds of `slice`, which fulfills the other requirements for `offset`. 23 ( 0.00%) self.end = unsafe { self.end.offset(-offset) }; . self.end . } . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl ExactSizeIterator for $name<'_, T> { . #[inline(always)] . fn len(&self) -> usize { 4,813 ( 0.00%) len!(self) . } . . #[inline(always)] . fn is_empty(&self) -> bool { . is_empty!(self) . } . } . -- line 128 ---------------------------------------- -- line 134 ---------------------------------------- . fn next(&mut self) -> Option<$elem> { . // could be implemented with slices, but this avoids bounds checks . . // SAFETY: `assume` calls are safe since a slice's start pointer . // must be non-null, and slices over non-ZSTs must also have a . // non-null end pointer. The call to `next_unchecked!` is safe . // since we check if the iterator is empty first. . unsafe { 8,310 ( 0.00%) assume(!self.ptr.as_ptr().is_null()); . if mem::size_of::() != 0 { 18,917 ( 0.01%) assume(!self.end.is_null()); . } 3,823,345 ( 1.87%) if is_empty!(self) { . None . } else { . Some(next_unchecked!(self)) . } . } . } . . #[inline] . fn size_hint(&self) -> (usize, Option) { 39,326 ( 0.02%) let exact = len!(self); . (exact, Some(exact)) . } . . #[inline] . fn count(self) -> usize { . len!(self) . } . . #[inline] . fn nth(&mut self, n: usize) -> Option<$elem> { 558 ( 0.00%) if n >= len!(self) { . // This iterator is now empty. . if mem::size_of::() == 0 { . // We have to do it this way as `ptr` may never be 0, but `end` . // could be (due to wrapping). . self.end = self.ptr.as_ptr(); . } else { . // SAFETY: end can't be 0 if T isn't ZST because ptr isn't 0 and end >= ptr . unsafe { -- line 175 ---------------------------------------- -- line 203 ---------------------------------------- . // faster to compile. . #[inline] . fn for_each(mut self, mut f: F) . where . Self: Sized, . F: FnMut(Self::Item), . { . while let Some(x) = self.next() { 284 ( 0.00%) f(x); . } . } . . // We override the default implementation, which uses `try_fold`, . // because this simple implementation generates less LLVM IR and is . // faster to compile. . #[inline] . fn all(&mut self, mut f: F) -> bool . where . Self: Sized, . F: FnMut(Self::Item) -> bool, . { 128 ( 0.00%) while let Some(x) = self.next() { 5,147 ( 0.00%) if !f(x) { . return false; . } . } . true . } . . // We override the default implementation, which uses `try_fold`, . // because this simple implementation generates less LLVM IR and is . // faster to compile. . #[inline] 176 ( 0.00%) fn any(&mut self, mut f: F) -> bool . where . Self: Sized, . F: FnMut(Self::Item) -> bool, . { 16,607 ( 0.01%) while let Some(x) = self.next() { 19,887 ( 0.01%) if f(x) { . return true; . } . } . false 176 ( 0.00%) } . . // We override the default implementation, which uses `try_fold`, . // because this simple implementation generates less LLVM IR and is . // faster to compile. . #[inline] . fn find

(&mut self, mut predicate: P) -> Option . where . Self: Sized, . P: FnMut(&Self::Item) -> bool, . { 1,209 ( 0.00%) while let Some(x) = self.next() { 6,570 ( 0.00%) if predicate(&x) { . return Some(x); . } . } . None 895 ( 0.00%) } . . // We override the default implementation, which uses `try_fold`, . // because this simple implementation generates less LLVM IR and is . // faster to compile. . #[inline] . fn find_map(&mut self, mut f: F) -> Option . where . Self: Sized, . F: FnMut(Self::Item) -> Option, . { 1,097 ( 0.00%) while let Some(x) = self.next() { 6,768 ( 0.00%) if let Some(y) = f(x) { 706 ( 0.00%) return Some(y); . } . } . None 400 ( 0.00%) } . . // We override the default implementation, which uses `try_fold`, . // because this simple implementation generates less LLVM IR and is . // faster to compile. Also, the `assume` avoids a bounds check. . #[inline] . #[rustc_inherit_overflow_checks] . fn position

(&mut self, mut predicate: P) -> Option where . Self: Sized, . P: FnMut(Self::Item) -> bool, . { . let n = len!(self); . let mut i = 0; . while let Some(x) = self.next() { 9,621 ( 0.00%) if predicate(x) { . // SAFETY: we are guaranteed to be in bounds by the loop invariant: . // when `i >= n`, `self.next()` returns `None` and the loop breaks. . unsafe { assume(i < n) }; . return Some(i); . } . i += 1; . } . None -- line 303 ---------------------------------------- -- line 308 ---------------------------------------- . // faster to compile. Also, the `assume` avoids a bounds check. . #[inline] . fn rposition

(&mut self, mut predicate: P) -> Option where . P: FnMut(Self::Item) -> bool, . Self: Sized + ExactSizeIterator + DoubleEndedIterator . { . let n = len!(self); . let mut i = n; 670 ( 0.00%) while let Some(x) = self.next_back() { 9,453 ( 0.00%) i -= 1; 8,784 ( 0.00%) if predicate(x) { . // SAFETY: `i` must be lower than `n` since it starts at `n` . // and is only decreasing. . unsafe { assume(i < n) }; . return Some(i); . } . } . None . } -- line 326 ---------------------------------------- -- line 332 ---------------------------------------- . // the returned references is guaranteed to refer to an element . // of the slice and thus guaranteed to be valid. . // . // Also note that the caller also guarantees that we're never . // called with the same index again, and that no other methods . // that will access this subslice are called, so it is valid . // for the returned reference to be mutable in the case of . // `IterMut` 1,715 ( 0.00%) unsafe { & $( $mut_ )? * self.ptr.as_ptr().add(idx) } . } . . $($extra)* . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a, T> DoubleEndedIterator for $name<'a, T> { . #[inline] -- line 348 ---------------------------------------- -- line 351 ---------------------------------------- . . // SAFETY: `assume` calls are safe since a slice's start pointer must be non-null, . // and slices over non-ZSTs must also have a non-null end pointer. . // The call to `next_back_unchecked!` is safe since we check if the iterator is . // empty first. . unsafe { . assume(!self.ptr.as_ptr().is_null()); . if mem::size_of::() != 0 { 24 ( 0.00%) assume(!self.end.is_null()); . } 38,854 ( 0.02%) if is_empty!(self) { . None . } else { . Some(next_back_unchecked!(self)) . } . } . } . . #[inline] -- line 369 ---------------------------------------- 358,511 ( 0.18%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_index/src/bit_set.rs -------------------------------------------------------------------------------- Ir -- line 44 ---------------------------------------- . } . Some((start, end)) . } . . macro_rules! bit_relations_inherent_impls { . () => { . /// Sets `self = self | other` and returns `true` if `self` changed . /// (i.e., if new bits were added). 3,072 ( 0.00%) pub fn union(&mut self, other: &Rhs) -> bool . where . Self: BitRelations, . { . >::union(self, other) 2,304 ( 0.00%) } . . /// Sets `self = self - other` and returns `true` if `self` changed. . /// (i.e., if any bits were removed). . pub fn subtract(&mut self, other: &Rhs) -> bool . where . Self: BitRelations, . { . >::subtract(self, other) -- line 65 ---------------------------------------- -- line 101 ---------------------------------------- . } . } . . impl BitSet { . /// Creates a new, empty bitset with a given `domain_size`. . #[inline] . pub fn new_empty(domain_size: usize) -> BitSet { . let num_words = num_words(domain_size); 1,892 ( 0.00%) BitSet { domain_size, words: vec![0; num_words], marker: PhantomData } . } . . /// Creates a new, filled bitset with a given `domain_size`. . #[inline] . pub fn new_filled(domain_size: usize) -> BitSet { . let num_words = num_words(domain_size); . let mut result = BitSet { domain_size, words: vec![!0; num_words], marker: PhantomData }; . result.clear_excess_bits(); . result . } . . /// Clear all elements. . #[inline] . pub fn clear(&mut self) { . for word in &mut self.words { 92 ( 0.00%) *word = 0; . } . } . . /// Clear excess bits in the final word. . fn clear_excess_bits(&mut self) { 21 ( 0.00%) let num_bits_in_final_word = self.domain_size % WORD_BITS; 42 ( 0.00%) if num_bits_in_final_word > 0 { 21 ( 0.00%) let mask = (1 << num_bits_in_final_word) - 1; 63 ( 0.00%) let final_word_idx = self.words.len() - 1; 21 ( 0.00%) self.words[final_word_idx] &= mask; . } . } . . /// Count the number of set bits in the set. . pub fn count(&self) -> usize { . self.words.iter().map(|e| e.count_ones() as usize).sum() . } . . /// Returns `true` if `self` contains `elem`. . #[inline] . pub fn contains(&self, elem: T) -> bool { 2,164 ( 0.00%) assert!(elem.index() < self.domain_size); . let (word_index, mask) = word_index_and_mask(elem); 1,960 ( 0.00%) (self.words[word_index] & mask) != 0 . } . . /// Is `self` is a (non-strict) superset of `other`? . #[inline] . pub fn superset(&self, other: &BitSet) -> bool { . assert_eq!(self.domain_size, other.domain_size); . self.words.iter().zip(&other.words).all(|(a, b)| (a & b) == *b) . } -- line 157 ---------------------------------------- -- line 160 ---------------------------------------- . #[inline] . pub fn is_empty(&self) -> bool { . self.words.iter().all(|a| *a == 0) . } . . /// Insert `elem`. Returns whether the set has changed. . #[inline] . pub fn insert(&mut self, elem: T) -> bool { 35,893 ( 0.02%) assert!(elem.index() < self.domain_size); . let (word_index, mask) = word_index_and_mask(elem); . let word_ref = &mut self.words[word_index]; 4,161 ( 0.00%) let word = *word_ref; 8,322 ( 0.00%) let new_word = word | mask; 17,272 ( 0.01%) *word_ref = new_word; 4,349 ( 0.00%) new_word != word . } . . #[inline] . pub fn insert_range(&mut self, elems: impl RangeBounds) { . let Some((start, end)) = inclusive_start_end(elems, self.domain_size) else { . return; . }; . -- line 182 ---------------------------------------- -- line 199 ---------------------------------------- . } else { . self.words[start_word_index] |= end_mask | (end_mask - start_mask); . } . } . . /// Sets all bits to true. . pub fn insert_all(&mut self) { . for word in &mut self.words { 42 ( 0.00%) *word = !0; . } . self.clear_excess_bits(); . } . . /// Returns `true` if the set has changed. . #[inline] . pub fn remove(&mut self, elem: T) -> bool { 5,796 ( 0.00%) assert!(elem.index() < self.domain_size); . let (word_index, mask) = word_index_and_mask(elem); . let word_ref = &mut self.words[word_index]; . let word = *word_ref; 5,232 ( 0.00%) let new_word = word & !mask; 2,616 ( 0.00%) *word_ref = new_word; . new_word != word . } . . /// Gets a slice of the underlying words. . pub fn words(&self) -> &[Word] { . &self.words . } . -- line 228 ---------------------------------------- -- line 308 ---------------------------------------- . } . . bit_relations_inherent_impls! {} . } . . // dense REL dense . impl BitRelations> for BitSet { . fn union(&mut self, other: &BitSet) -> bool { 2,304 ( 0.00%) assert_eq!(self.domain_size, other.domain_size); 713 ( 0.00%) bitwise(&mut self.words, &other.words, |a, b| a | b) . } . . fn subtract(&mut self, other: &BitSet) -> bool { . assert_eq!(self.domain_size, other.domain_size); . bitwise(&mut self.words, &other.words, |a, b| a & !b) . } . . fn intersect(&mut self, other: &BitSet) -> bool { -- line 325 ---------------------------------------- -- line 455 ---------------------------------------- . HybridBitSet::Dense(dense) => self.intersect(dense), . } . } . } . . // hybrid REL hybrid . impl BitRelations> for HybridBitSet { . fn union(&mut self, other: &HybridBitSet) -> bool { 366 ( 0.00%) assert_eq!(self.domain_size(), other.domain_size()); 122 ( 0.00%) match self { . HybridBitSet::Sparse(_) => { 122 ( 0.00%) match other { . HybridBitSet::Sparse(other_sparse) => { . // Both sets are sparse. Add the elements in . // `other_sparse` to `self` one at a time. This . // may or may not cause `self` to be densified. . let mut changed = false; . for elem in other_sparse.iter() { 366 ( 0.00%) changed |= self.insert(*elem); . } . changed . } . . HybridBitSet::Dense(other_dense) => self.union(other_dense), . } . } . -- line 481 ---------------------------------------- -- line 511 ---------------------------------------- . } . } . . impl Clone for BitSet { . fn clone(&self) -> Self { . BitSet { domain_size: self.domain_size, words: self.words.clone(), marker: PhantomData } . } . 4,207 ( 0.00%) fn clone_from(&mut self, from: &Self) { 3,273 ( 0.00%) if self.domain_size != from.domain_size { . self.words.resize(from.domain_size, 0); . self.domain_size = from.domain_size; . } . . self.words.copy_from_slice(&from.words); . } . } . -- line 528 ---------------------------------------- -- line 599 ---------------------------------------- . } . } . } . . impl<'a, T: Idx> Iterator for BitIter<'a, T> { . type Item = T; . fn next(&mut self) -> Option { . loop { 4,844 ( 0.00%) if self.word != 0 { . // Get the position of the next set bit in the current word, . // then clear the bit. . let bit_pos = self.word.trailing_zeros() as usize; . let bit = 1 << bit_pos; . self.word ^= bit; 2,775 ( 0.00%) return Some(T::new(bit_pos + self.offset)); . } . . // Move onto the next word. `wrapping_add()` is needed to handle . // the degenerate initial value given to `offset` in `new()`. . let word = self.iter.next()?; 641 ( 0.00%) self.word = *word; . self.offset = self.offset.wrapping_add(WORD_BITS); . } . } . } . . #[inline] . fn bitwise(out_vec: &mut [Word], in_vec: &[Word], op: Op) -> bool . where . Op: Fn(Word, Word) -> Word, . { 3,072 ( 0.00%) assert_eq!(out_vec.len(), in_vec.len()); . let mut changed = 0; 1,426 ( 0.00%) for (out_elem, in_elem) in iter::zip(out_vec, in_vec) { 1,426 ( 0.00%) let old_val = *out_elem; . let new_val = op(old_val, *in_elem); 713 ( 0.00%) *out_elem = new_val; . // This is essentially equivalent to a != with changed being a bool, but . // in practice this code gets auto-vectorized by the compiler for most . // operators. Using != here causes us to generate quite poor code as the . // compiler tries to go back to a boolean on each loop iteration. 2,852 ( 0.00%) changed |= old_val ^ new_val; . } . changed != 0 . } . . const SPARSE_MAX: usize = 8; . . /// A fixed-size bitset type with a sparse representation and a maximum of . /// `SPARSE_MAX` elements. The elements are stored as a sorted `ArrayVec` with -- line 648 ---------------------------------------- -- line 656 ---------------------------------------- . } . . impl SparseBitSet { . fn new_empty(domain_size: usize) -> Self { . SparseBitSet { domain_size, elems: ArrayVec::new() } . } . . fn len(&self) -> usize { 1,692 ( 0.00%) self.elems.len() . } . . fn is_empty(&self) -> bool { . self.elems.len() == 0 . } . . fn contains(&self, elem: T) -> bool { . assert!(elem.index() < self.domain_size); . self.elems.contains(&elem) . } . . fn insert(&mut self, elem: T) -> bool { 1,692 ( 0.00%) assert!(elem.index() < self.domain_size); 576 ( 0.00%) let changed = if let Some(i) = self.elems.iter().position(|&e| e.index() >= elem.index()) { 448 ( 0.00%) if self.elems[i] == elem { . // `elem` is already in the set. . false . } else { . // `elem` is smaller than one or more existing elements. . self.elems.insert(i, elem); . true . } . } else { . // `elem` is larger than all existing elements. . self.elems.push(elem); . true . }; 1,692 ( 0.00%) assert!(self.len() <= SPARSE_MAX); . changed . } . . fn remove(&mut self, elem: T) -> bool { . assert!(elem.index() < self.domain_size); . if let Some(i) = self.elems.iter().position(|&e| e == elem) { . self.elems.remove(i); . true -- line 700 ---------------------------------------- -- line 707 ---------------------------------------- . let mut dense = BitSet::new_empty(self.domain_size); . for elem in self.elems.iter() { . dense.insert(*elem); . } . dense . } . . fn iter(&self) -> slice::Iter<'_, T> { 566 ( 0.00%) self.elems.iter() . } . . bit_relations_inherent_impls! {} . } . . impl SparseBitSet { . fn last_set_in(&self, range: impl RangeBounds) -> Option { . let mut last_leq = None; -- line 723 ---------------------------------------- -- line 767 ---------------------------------------- . match self { . HybridBitSet::Sparse(sparse) => sparse.domain_size, . HybridBitSet::Dense(dense) => dense.domain_size, . } . } . . pub fn clear(&mut self) { . let domain_size = self.domain_size(); 442 ( 0.00%) *self = HybridBitSet::new_empty(domain_size); . } . . pub fn contains(&self, elem: T) -> bool { . match self { . HybridBitSet::Sparse(sparse) => sparse.contains(elem), . HybridBitSet::Dense(dense) => dense.contains(elem), . } . } -- line 783 ---------------------------------------- -- line 799 ---------------------------------------- . HybridBitSet::Sparse(sparse) => sparse.is_empty(), . HybridBitSet::Dense(dense) => dense.is_empty(), . } . } . . /// Returns the previous element present in the bitset from `elem`, . /// inclusively of elem. That is, will return `Some(elem)` if elem is in the . /// bitset. 566 ( 0.00%) pub fn last_set_in(&self, range: impl RangeBounds) -> Option . where . T: Ord, . { 566 ( 0.00%) match self { . HybridBitSet::Sparse(sparse) => sparse.last_set_in(range), . HybridBitSet::Dense(dense) => dense.last_set_in(range), . } 849 ( 0.00%) } . 7,614 ( 0.00%) pub fn insert(&mut self, elem: T) -> bool { . // No need to check `elem` against `self.domain_size` here because all . // the match cases check it, one way or another. 1,692 ( 0.00%) match self { 1,692 ( 0.00%) HybridBitSet::Sparse(sparse) if sparse.len() < SPARSE_MAX => { . // The set is sparse and has space for `elem`. . sparse.insert(elem) . } . HybridBitSet::Sparse(sparse) if sparse.contains(elem) => { . // The set is sparse and does not have space for `elem`, but . // that doesn't matter because `elem` is already present. . false . } -- line 829 ---------------------------------------- -- line 832 ---------------------------------------- . let mut dense = sparse.to_dense(); . let changed = dense.insert(elem); . assert!(changed); . *self = HybridBitSet::Dense(dense); . changed . } . HybridBitSet::Dense(dense) => dense.insert(elem), . } 6,768 ( 0.00%) } . . pub fn insert_range(&mut self, elems: impl RangeBounds) { . // No need to check `elem` against `self.domain_size` here because all . // the match cases check it, one way or another. . let start = match elems.start_bound().cloned() { . Bound::Included(start) => start.index(), . Bound::Excluded(start) => start.index() + 1, . Bound::Unbounded => 0, -- line 848 ---------------------------------------- -- line 896 ---------------------------------------- . pub fn to_dense(self) -> BitSet { . match self { . HybridBitSet::Sparse(sparse) => sparse.to_dense(), . HybridBitSet::Dense(dense) => dense, . } . } . . pub fn iter(&self) -> HybridIter<'_, T> { 352 ( 0.00%) match self { 400 ( 0.00%) HybridBitSet::Sparse(sparse) => HybridIter::Sparse(sparse.iter()), . HybridBitSet::Dense(dense) => HybridIter::Dense(dense.iter()), . } . } . . bit_relations_inherent_impls! {} . } . . pub enum HybridIter<'a, T: Idx> { -- line 913 ---------------------------------------- -- line 935 ---------------------------------------- . /// to or greater than the domain size. . #[derive(Clone, Debug, PartialEq)] . pub struct GrowableBitSet { . bit_set: BitSet, . } . . impl GrowableBitSet { . /// Ensure that the set can hold at least `min_domain_size` elements. 76,643 ( 0.04%) pub fn ensure(&mut self, min_domain_size: usize) { 21,898 ( 0.01%) if self.bit_set.domain_size < min_domain_size { 6 ( 0.00%) self.bit_set.domain_size = min_domain_size; . } . . let min_num_words = num_words(min_domain_size); 43,796 ( 0.02%) if self.bit_set.words.len() < min_num_words { . self.bit_set.words.resize(min_num_words, 0) . } 65,694 ( 0.03%) } . . pub fn new_empty() -> GrowableBitSet { 108 ( 0.00%) GrowableBitSet { bit_set: BitSet::new_empty(0) } . } . . pub fn with_capacity(capacity: usize) -> GrowableBitSet { 4 ( 0.00%) GrowableBitSet { bit_set: BitSet::new_empty(capacity) } . } . . /// Returns `true` if the set has changed. . #[inline] . pub fn insert(&mut self, elem: T) -> bool { 54,727 ( 0.03%) self.ensure(elem.index() + 1); . self.bit_set.insert(elem) . } . . /// Returns `true` if the set has changed. . #[inline] . pub fn remove(&mut self, elem: T) -> bool { . self.ensure(elem.index() + 1); . self.bit_set.remove(elem) -- line 973 ---------------------------------------- -- line 976 ---------------------------------------- . #[inline] . pub fn is_empty(&self) -> bool { . self.bit_set.is_empty() . } . . #[inline] . pub fn contains(&self, elem: T) -> bool { . let (word_index, mask) = word_index_and_mask(elem); 638 ( 0.00%) self.bit_set.words.get(word_index).map_or(false, |word| (word & mask) != 0) . } . } . . /// A fixed-size 2D bit matrix type with a dense representation. . /// . /// `R` and `C` are index types used to identify rows and columns respectively; . /// typically newtyped `usize` wrappers, but they can also just be `usize`. . /// -- line 992 ---------------------------------------- -- line 1001 ---------------------------------------- . } . . impl BitMatrix { . /// Creates a new `rows x columns` matrix, initially empty. . pub fn new(num_rows: usize, num_columns: usize) -> BitMatrix { . // For every element, we need one bit for every other . // element. Round up to an even number of words. . let words_per_row = num_words(num_columns); 249 ( 0.00%) BitMatrix { . num_rows, . num_columns, 153 ( 0.00%) words: vec![0; num_rows * words_per_row], . marker: PhantomData, . } . } . . /// Creates a new matrix, with `row` used as the value for every row. . pub fn from_row_n(row: &BitSet, num_rows: usize) -> BitMatrix { . let num_columns = row.domain_size(); . let words_per_row = num_words(num_columns); -- line 1020 ---------------------------------------- -- line 1029 ---------------------------------------- . . pub fn rows(&self) -> impl Iterator { . (0..self.num_rows).map(R::new) . } . . /// The range of bits for a given row. . fn range(&self, row: R) -> (usize, usize) { . let words_per_row = num_words(self.num_columns); 3,708 ( 0.00%) let start = row.index() * words_per_row; 3,152 ( 0.00%) (start, start + words_per_row) . } . . /// Sets the cell at `(row, column)` to true. Put another way, insert . /// `column` to the bitset for `row`. . /// . /// Returns `true` if this changed the matrix. . pub fn insert(&mut self, row: R, column: C) -> bool { 2,004 ( 0.00%) assert!(row.index() < self.num_rows && column.index() < self.num_columns); . let (start, _) = self.range(row); . let (word_index, mask) = word_index_and_mask(column); . let words = &mut self.words[..]; 2,040 ( 0.00%) let word = words[start + word_index]; 816 ( 0.00%) let new_word = word | mask; 408 ( 0.00%) words[start + word_index] = new_word; 816 ( 0.00%) word != new_word . } . . /// Do the bits from `row` contain `column`? Put another way, is . /// the matrix cell at `(row, column)` true? Put yet another way, . /// if the matrix represents (transitive) reachability, can . /// `row` reach `column`? 148 ( 0.00%) pub fn contains(&self, row: R, column: C) -> bool { 740 ( 0.00%) assert!(row.index() < self.num_rows && column.index() < self.num_columns); . let (start, _) = self.range(row); . let (word_index, mask) = word_index_and_mask(column); 740 ( 0.00%) (self.words[start + word_index] & mask) != 0 296 ( 0.00%) } . . /// Returns those indices that are true in rows `a` and `b`. This . /// is an *O*(*n*) operation where *n* is the number of elements . /// (somewhat independent from the actual size of the . /// intersection, in particular). . pub fn intersect_rows(&self, row1: R, row2: R) -> Vec { . assert!(row1.index() < self.num_rows && row2.index() < self.num_rows); . let (row1_start, row1_end) = self.range(row1); -- line 1073 ---------------------------------------- -- line 1090 ---------------------------------------- . . /// Adds the bits from row `read` to the bits from row `write`, and . /// returns `true` if anything changed. . /// . /// This is used when computing transitive reachability because if . /// you have an edge `write -> read`, because in that case . /// `write` can reach everything that `read` can (and . /// potentially more). 372 ( 0.00%) pub fn union_rows(&mut self, read: R, write: R) -> bool { 2,040 ( 0.00%) assert!(read.index() < self.num_rows && write.index() < self.num_rows); 408 ( 0.00%) let (read_start, read_end) = self.range(read); . let (write_start, write_end) = self.range(write); . let words = &mut self.words[..]; . let mut changed = false; . for (read_index, write_index) in iter::zip(read_start..read_end, write_start..write_end) { 2,328 ( 0.00%) let word = words[write_index]; 1,224 ( 0.00%) let new_word = word | words[read_index]; 408 ( 0.00%) words[write_index] = new_word; 2,076 ( 0.00%) changed |= word != new_word; . } . changed 1,116 ( 0.00%) } . . /// Adds the bits from `with` to the bits from row `write`, and . /// returns `true` if anything changed. . pub fn union_row_with(&mut self, with: &BitSet, write: R) -> bool { . assert!(write.index() < self.num_rows); . assert_eq!(with.domain_size(), self.num_columns); . let (write_start, write_end) = self.range(write); . let mut changed = false; -- line 1119 ---------------------------------------- -- line 1209 ---------------------------------------- . /// Creates a new empty sparse bit matrix with no rows or columns. . pub fn new(num_columns: usize) -> Self { . Self { num_columns, rows: IndexVec::new() } . } . . fn ensure_row(&mut self, row: R) -> &mut HybridBitSet { . // Instantiate any missing rows up to and including row `row` with an empty HybridBitSet. . // Then replace row `row` with a full HybridBitSet if necessary. 285 ( 0.00%) self.rows.get_or_insert_with(row, || HybridBitSet::new_empty(self.num_columns)) . } . . /// Sets the cell at `(row, column)` to true. Put another way, insert . /// `column` to the bitset for `row`. . /// . /// Returns `true` if this changed the matrix. . pub fn insert(&mut self, row: R, column: C) -> bool { 688 ( 0.00%) self.ensure_row(row).insert(column) . } . . /// Sets the cell at `(row, column)` to false. Put another way, delete . /// `column` from the bitset for `row`. Has no effect if `row` does not . /// exist. . /// . /// Returns `true` if this changed the matrix. . pub fn remove(&mut self, row: R, column: C) -> bool { -- line 1233 ---------------------------------------- -- line 1255 ---------------------------------------- . . /// Adds the bits from row `read` to the bits from row `write`, and . /// returns `true` if anything changed. . /// . /// This is used when computing transitive reachability because if . /// you have an edge `write -> read`, because in that case . /// `write` can reach everything that `read` can (and . /// potentially more). 18,144 ( 0.01%) pub fn union_rows(&mut self, read: R, write: R) -> bool { 2,592 ( 0.00%) if read == write || self.row(read).is_none() { . return false; . } . . self.ensure_row(write); 671 ( 0.00%) if let (Some(read_row), Some(write_row)) = self.rows.pick2_mut(read, write) { . write_row.union(read_row) . } else { . unreachable!() . } 23,328 ( 0.01%) } . . /// Insert all bits in the given row. . pub fn insert_all_into_row(&mut self, row: R) { . self.ensure_row(row).insert_all(); . } . . pub fn rows(&self) -> impl Iterator { . self.rows.indices() -- line 1282 ---------------------------------------- -- line 1284 ---------------------------------------- . . /// Iterates through all the columns set to true in a given row of . /// the matrix. . pub fn iter<'a>(&'a self, row: R) -> impl Iterator + 'a { . self.row(row).into_iter().flat_map(|r| r.iter()) . } . . pub fn row(&self, row: R) -> Option<&HybridBitSet> { 7,787 ( 0.00%) if let Some(Some(row)) = self.rows.get(row) { Some(row) } else { None } . } . . /// Interescts `row` with `set`. `set` can be either `BitSet` or . /// `HybridBitSet`. Has no effect if `row` does not exist. . /// . /// Returns true if the row was changed. . pub fn intersect_row(&mut self, row: R, set: &Set) -> bool . where -- line 1300 ---------------------------------------- -- line 1329 ---------------------------------------- . HybridBitSet: BitRelations, . { . self.ensure_row(row).union(set) . } . } . . #[inline] . fn num_words(domain_size: T) -> usize { 53,066 ( 0.03%) (domain_size.index() + WORD_BITS - 1) / WORD_BITS . } . . #[inline] . fn word_index_and_mask(elem: T) -> (usize, Word) { . let elem = elem.index(); 42,945 ( 0.02%) let word_index = elem / WORD_BITS; 26,648 ( 0.01%) let mask = 1 << (elem % WORD_BITS); . (word_index, mask) . } . . #[inline] . fn max_bit(word: Word) -> usize { . WORD_BITS - 1 - word.leading_zeros() as usize . } . -- line 1352 ---------------------------------------- 32,369 ( 0.02%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs -------------------------------------------------------------------------------- Ir -- line 84 ---------------------------------------- . pub struct SessionGlobals { . symbol_interner: symbol::Interner, . span_interner: Lock, . hygiene_data: Lock, . source_map: Lock>>, . } . . impl SessionGlobals { 12 ( 0.00%) pub fn new(edition: Edition) -> SessionGlobals { 50 ( 0.00%) SessionGlobals { 2 ( 0.00%) symbol_interner: symbol::Interner::fresh(), . span_interner: Lock::new(span_encoding::SpanInterner::default()), 6 ( 0.00%) hygiene_data: Lock::new(hygiene::HygieneData::new(edition)), . source_map: Lock::new(None), . } 10 ( 0.00%) } . } . . #[inline] . pub fn create_session_globals_then(edition: Edition, f: impl FnOnce() -> R) -> R { 1 ( 0.00%) assert!( . !SESSION_GLOBALS.is_set(), . "SESSION_GLOBALS should never be overwritten! \ . Use another thread if you need another SessionGlobals" . ); 3 ( 0.00%) let session_globals = SessionGlobals::new(edition); 7 ( 0.00%) SESSION_GLOBALS.set(&session_globals, f) 1 ( 0.00%) } . . #[inline] . pub fn set_session_globals_then(session_globals: &SessionGlobals, f: impl FnOnce() -> R) -> R { . assert!( . !SESSION_GLOBALS.is_set(), . "SESSION_GLOBALS should never be overwritten! \ . Use another thread if you need another SessionGlobals" . ); -- line 119 ---------------------------------------- -- line 120 ---------------------------------------- . SESSION_GLOBALS.set(session_globals, f) . } . . #[inline] . pub fn create_default_session_if_not_set_then(f: F) -> R . where . F: FnOnce(&SessionGlobals) -> R, . { 4 ( 0.00%) create_session_if_not_set_then(edition::DEFAULT_EDITION, f) . } . . #[inline] . pub fn create_session_if_not_set_then(edition: Edition, f: F) -> R . where . F: FnOnce(&SessionGlobals) -> R, . { 1 ( 0.00%) if !SESSION_GLOBALS.is_set() { 3 ( 0.00%) let session_globals = SessionGlobals::new(edition); 11 ( 0.00%) SESSION_GLOBALS.set(&session_globals, || SESSION_GLOBALS.with(f)) 1 ( 0.00%) } else { . SESSION_GLOBALS.with(f) . } . } . . #[inline] . pub fn with_session_globals(f: F) -> R . where . F: FnOnce(&SessionGlobals) -> R, . { 45,201 ( 0.02%) SESSION_GLOBALS.with(f) . } . . #[inline] . pub fn create_default_session_globals_then(f: impl FnOnce() -> R) -> R { . create_session_globals_then(edition::DEFAULT_EDITION, f) . } . . // If this ever becomes non thread-local, `decode_syntax_context` . // and `decode_expn_id` will need to be updated to handle concurrent . // deserialization. . scoped_tls::scoped_thread_local!(static SESSION_GLOBALS: SessionGlobals); . . // FIXME: We should use this enum or something like it to get rid of the . // use of magic `/rust/1.x/...` paths across the board. 15 ( 0.00%) #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd)] 1,072 ( 0.00%) #[derive(Decodable)] . pub enum RealFileName { . LocalPath(PathBuf), . /// For remapped paths (namely paths into libstd that have been mapped . /// to the appropriate spot on the local host's file system, and local file . /// system paths that have been remapped with `FilePathMapping`), . Remapped { . /// `local_path` is the (host-dependent) local path to the file. This is . /// None if the file was imported from another crate -- line 173 ---------------------------------------- -- line 179 ---------------------------------------- . } . . impl Hash for RealFileName { . fn hash(&self, state: &mut H) { . // To prevent #70924 from happening again we should only hash the . // remapped (virtualized) path if that exists. This is because . // virtualized paths to sysroot crates (/rust/$hash or /rust/$version) . // remain stable even if the corresponding local_path changes 2,724 ( 0.00%) self.remapped_path_if_available().hash(state) . } . } . . // This is functionally identical to #[derive(Encodable)], with the exception of . // an added assert statement . impl Encodable for RealFileName { . fn encode(&self, encoder: &mut S) -> Result<(), S::Error> { 4 ( 0.00%) encoder.emit_enum(|encoder| match *self { . RealFileName::LocalPath(ref local_path) => { 16 ( 0.00%) encoder.emit_enum_variant("LocalPath", 0, 1, |encoder| { . encoder.emit_enum_variant_arg(true, |encoder| local_path.encode(encoder))?; . Ok(()) . }) . } . . RealFileName::Remapped { ref local_path, ref virtual_name } => encoder . .emit_enum_variant("Remapped", 1, 2, |encoder| { . // For privacy and build reproducibility, we must not embed host-dependant path in artifacts -- line 205 ---------------------------------------- -- line 224 ---------------------------------------- . p.as_ref().map(PathBuf::as_path) . } . } . } . . /// Returns the path suitable for reading from the file system on the local host, . /// if this information exists. . /// Avoid embedding this in build artifacts; see `remapped_path_if_available()` for that. 2 ( 0.00%) pub fn into_local_path(self) -> Option { 2 ( 0.00%) match self { . RealFileName::LocalPath(p) => Some(p), . RealFileName::Remapped { local_path: p, virtual_name: _ } => p, . } 3 ( 0.00%) } . . /// Returns the path suitable for embedding into build artifacts. This would still . /// be a local path if it has not been remapped. A remapped path will not correspond . /// to a valid file system path: see `local_path_if_available()` for something that . /// is more likely to return paths into the local host file system. . pub fn remapped_path_if_available(&self) -> &Path { 2,172 ( 0.00%) match self { . RealFileName::LocalPath(p) . | RealFileName::Remapped { local_path: _, virtual_name: p } => &p, . } 3 ( 0.00%) } . . /// Returns the path suitable for reading from the file system on the local host, . /// if this information exists. Otherwise returns the remapped name. . /// Avoid embedding this in build artifacts; see `remapped_path_if_available()` for that. . pub fn local_path_if_available(&self) -> &Path { 2 ( 0.00%) match self { . RealFileName::LocalPath(path) . | RealFileName::Remapped { local_path: None, virtual_name: path } . | RealFileName::Remapped { local_path: Some(path), virtual_name: _ } => path, . } . } . . pub fn to_string_lossy(&self, display_pref: FileNameDisplayPreference) -> Cow<'_, str> { 2 ( 0.00%) match display_pref { . FileNameDisplayPreference::Local => self.local_path_if_available().to_string_lossy(), . FileNameDisplayPreference::Remapped => { . self.remapped_path_if_available().to_string_lossy() . } . } . } . } . . /// Differentiates between real files and common virtual files. 5,666 ( 0.00%) #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd, Hash)] 6,488 ( 0.00%) #[derive(Decodable, Encodable)] . pub enum FileName { . Real(RealFileName), . /// Call to `quote!`. 2 ( 0.00%) QuoteExpansion(u64), . /// Command line. . Anon(u64), . /// Hack in `src/librustc_ast/parse.rs`. . // FIXME(jseyfried) . MacroExpansion(u64), . ProcMacroSourceCode(u64), . /// Strings provided as `--cfg [cfgspec]` stored in a `crate_cfg`. . CfgSpec(u64), -- line 285 ---------------------------------------- -- line 288 ---------------------------------------- . /// Custom sources for explicit parser calls from plugins and drivers. . Custom(String), . DocTest(PathBuf, isize), . /// Post-substitution inline assembly from LLVM. . InlineAsm(u64), . } . . impl From for FileName { 14 ( 0.00%) fn from(p: PathBuf) -> Self { 4 ( 0.00%) assert!(!p.to_string_lossy().ends_with('>')); 12 ( 0.00%) FileName::Real(RealFileName::LocalPath(p)) 14 ( 0.00%) } . } . 2 ( 0.00%) #[derive(Clone, Copy, Eq, PartialEq, Hash, Debug)] . pub enum FileNameDisplayPreference { . Remapped, . Local, . } . . pub struct FileNameDisplay<'a> { . inner: &'a FileName, . display_pref: FileNameDisplayPreference, . } . . impl fmt::Display for FileNameDisplay<'_> { 8 ( 0.00%) fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { . use FileName::*; 12 ( 0.00%) match *self.inner { . Real(ref name) => { 12 ( 0.00%) write!(fmt, "{}", name.to_string_lossy(self.display_pref)) . } . QuoteExpansion(_) => write!(fmt, ""), . MacroExpansion(_) => write!(fmt, ""), . Anon(_) => write!(fmt, ""), . ProcMacroSourceCode(_) => write!(fmt, ""), . CfgSpec(_) => write!(fmt, ""), . CliCrateAttr(_) => write!(fmt, ""), . Custom(ref s) => write!(fmt, "<{}>", s), . DocTest(ref path, _) => write!(fmt, "{}", path.display()), . InlineAsm(_) => write!(fmt, ""), . } 10 ( 0.00%) } . } . . impl FileNameDisplay<'_> { . pub fn to_string_lossy(&self) -> Cow<'_, str> { . match self.inner { . FileName::Real(ref inner) => inner.to_string_lossy(self.display_pref), . _ => Cow::from(format!("{}", self)), . } . } . } . . impl FileName { . pub fn is_real(&self) -> bool { . use FileName::*; 1,088 ( 0.00%) match *self { . Real(_) => true, . Anon(_) . | MacroExpansion(_) . | ProcMacroSourceCode(_) . | CfgSpec(_) . | CliCrateAttr(_) . | Custom(_) . | QuoteExpansion(_) -- line 353 ---------------------------------------- -- line 357 ---------------------------------------- . } . . pub fn prefer_remapped(&self) -> FileNameDisplay<'_> { . FileNameDisplay { inner: self, display_pref: FileNameDisplayPreference::Remapped } . } . . // This may include transient local filesystem information. . // Must not be embedded in build outputs. 2 ( 0.00%) pub fn prefer_local(&self) -> FileNameDisplay<'_> { . FileNameDisplay { inner: self, display_pref: FileNameDisplayPreference::Local } 4 ( 0.00%) } . . pub fn display(&self, display_pref: FileNameDisplayPreference) -> FileNameDisplay<'_> { . FileNameDisplay { inner: self, display_pref } . } . . pub fn macro_expansion_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); -- line 375 ---------------------------------------- -- line 383 ---------------------------------------- . } . . pub fn proc_macro_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); . FileName::ProcMacroSourceCode(hasher.finish()) . } . 10 ( 0.00%) pub fn cfg_spec_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); 4 ( 0.00%) FileName::QuoteExpansion(hasher.finish()) 10 ( 0.00%) } . . pub fn cli_crate_attr_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); . FileName::CliCrateAttr(hasher.finish()) . } . . pub fn doc_test_source_code(path: PathBuf, line: isize) -> FileName { -- line 403 ---------------------------------------- -- line 423 ---------------------------------------- . /// that the length of the span is equal to `span.hi - span.lo`; there may be space in the . /// [`BytePos`] range between files. . /// . /// `SpanData` is public because `Span` uses a thread-local interner and can't be . /// sent to other threads, but some pieces of performance infra run in a separate thread. . /// Using `Span` is generally preferred. . #[derive(Clone, Copy, Hash, PartialEq, Eq)] . pub struct SpanData { 8 ( 0.00%) pub lo: BytePos, 8 ( 0.00%) pub hi: BytePos, . /// Information about where the macro came from, if this piece of . /// code was created by a macro expansion. 21 ( 0.00%) pub ctxt: SyntaxContext, 7 ( 0.00%) pub parent: Option, . } . . // Order spans by position in the file. . impl Ord for SpanData { . fn cmp(&self, other: &Self) -> Ordering { . let SpanData { . lo: s_lo, . hi: s_hi, -- line 444 ---------------------------------------- -- line 485 ---------------------------------------- . } . #[inline] . pub fn with_parent(&self, parent: Option) -> Span { . Span::new(self.lo, self.hi, self.ctxt, parent) . } . /// Returns `true` if this is a dummy span with any hygienic context. . #[inline] . pub fn is_dummy(self) -> bool { 71,820 ( 0.04%) self.lo.0 == 0 && self.hi.0 == 0 . } . /// Returns `true` if `self` fully encloses `other`. . pub fn contains(self, other: Self) -> bool { 123 ( 0.00%) self.lo <= other.lo && other.hi <= self.hi . } . } . . // The interner is pointed to by a thread local value which is only set on the main thread . // with parallelization is disabled. So we don't allow `Span` to transfer between threads . // to avoid panics and other errors, even though it would be memory safe to do so. . #[cfg(not(parallel_compiler))] . impl !Send for Span {} . #[cfg(not(parallel_compiler))] . impl !Sync for Span {} . . impl PartialOrd for Span { 28,480 ( 0.01%) fn partial_cmp(&self, rhs: &Self) -> Option { 21,360 ( 0.01%) PartialOrd::partial_cmp(&self.data(), &rhs.data()) 28,480 ( 0.01%) } . } . impl Ord for Span { . fn cmp(&self, rhs: &Self) -> Ordering { . Ord::cmp(&self.data(), &rhs.data()) . } . } . . /// A collection of `Span`s. -- line 520 ---------------------------------------- -- line 532 ---------------------------------------- . } . . impl Span { . #[inline] . pub fn lo(self) -> BytePos { . self.data().lo . } . #[inline] 8,568 ( 0.00%) pub fn with_lo(self, lo: BytePos) -> Span { . self.data().with_lo(lo) 5,712 ( 0.00%) } . #[inline] 656 ( 0.00%) pub fn hi(self) -> BytePos { . self.data().hi 656 ( 0.00%) } . #[inline] 2,124 ( 0.00%) pub fn with_hi(self, hi: BytePos) -> Span { . self.data().with_hi(hi) 1,416 ( 0.00%) } . #[inline] . pub fn ctxt(self) -> SyntaxContext { . self.data_untracked().ctxt . } . #[inline] 640 ( 0.00%) pub fn with_ctxt(self, ctxt: SyntaxContext) -> Span { . self.data_untracked().with_ctxt(ctxt) 384 ( 0.00%) } . #[inline] . pub fn parent(self) -> Option { . self.data().parent . } . #[inline] . pub fn with_parent(self, ctxt: Option) -> Span { . self.data().with_parent(ctxt) . } -- line 566 ---------------------------------------- -- line 568 ---------------------------------------- . /// Returns `true` if this is a dummy span with any hygienic context. . #[inline] . pub fn is_dummy(self) -> bool { . self.data_untracked().is_dummy() . } . . /// Returns `true` if this span comes from a macro or desugaring. . #[inline] 3 ( 0.00%) pub fn from_expansion(self) -> bool { . self.ctxt() != SyntaxContext::root() 2 ( 0.00%) } . . /// Returns `true` if `span` originates in a derive-macro's expansion. . pub fn in_derive_expansion(self) -> bool { . matches!(self.ctxt().outer_expn_data().kind, ExpnKind::Macro(MacroKind::Derive, _)) . } . . /// Gate suggestions that would not be appropriate in a context the user didn't write. . pub fn can_be_used_for_suggestions(self) -> bool { -- line 586 ---------------------------------------- -- line 600 ---------------------------------------- . /// Returns a new span representing an empty span at the beginning of this span. . #[inline] . pub fn shrink_to_lo(self) -> Span { . let span = self.data_untracked(); . span.with_hi(span.lo) . } . /// Returns a new span representing an empty span at the end of this span. . #[inline] 3 ( 0.00%) pub fn shrink_to_hi(self) -> Span { . let span = self.data_untracked(); . span.with_lo(span.hi) 2 ( 0.00%) } . . #[inline] . /// Returns `true` if `hi == lo`. . pub fn is_empty(self) -> bool { . let span = self.data_untracked(); . span.hi == span.lo . } . . /// Returns `self` if `self` is not the dummy span, and `other` otherwise. . pub fn substitute_dummy(self, other: Span) -> Span { . if self.is_dummy() { other } else { self } . } . . /// Returns `true` if `self` fully encloses `other`. 369 ( 0.00%) pub fn contains(self, other: Span) -> bool { . let span = self.data(); . let other = other.data(); . span.contains(other) 246 ( 0.00%) } . . /// Returns `true` if `self` touches `other`. . pub fn overlaps(self, other: Span) -> bool { . let span = self.data(); . let other = other.data(); . span.lo < other.hi && other.lo < span.hi . } . -- line 638 ---------------------------------------- -- line 663 ---------------------------------------- . /// The `Span` for the tokens in the previous macro expansion from which `self` was generated, . /// if any. . pub fn parent_callsite(self) -> Option { . let expn_data = self.ctxt().outer_expn_data(); . if !expn_data.is_root() { Some(expn_data.call_site) } else { None } . } . . /// Walk down the expansion ancestors to find a span that's contained within `outer`. 360 ( 0.00%) pub fn find_ancestor_inside(mut self, outer: Span) -> Option { 180 ( 0.00%) while !outer.contains(self) { . self = self.parent_callsite()?; . } . Some(self) 396 ( 0.00%) } . . /// Edition of the crate from which this span came. 864 ( 0.00%) pub fn edition(self) -> edition::Edition { . self.ctxt().edition() 576 ( 0.00%) } . . #[inline] . pub fn rust_2015(self) -> bool { 238 ( 0.00%) self.edition() == edition::Edition::Edition2015 . } . . #[inline] . pub fn rust_2018(self) -> bool { 30 ( 0.00%) self.edition() >= edition::Edition::Edition2018 . } . . #[inline] . pub fn rust_2021(self) -> bool { 86 ( 0.00%) self.edition() >= edition::Edition::Edition2021 . } . . /// Returns the source callee. . /// . /// Returns `None` if the supplied span has no expansion trace, . /// else returns the `ExpnData` for the macro definition . /// corresponding to the source callsite. . pub fn source_callee(self) -> Option { -- line 703 ---------------------------------------- -- line 707 ---------------------------------------- . } . let expn_data = self.ctxt().outer_expn_data(); . if !expn_data.is_root() { Some(source_callee(expn_data)) } else { None } . } . . /// Checks if a span is "internal" to a macro in which `#[unstable]` . /// items can be used (that is, a macro marked with . /// `#[allow_internal_unstable]`). 220 ( 0.00%) pub fn allows_unstable(self, feature: Symbol) -> bool { 44 ( 0.00%) self.ctxt() . .outer_expn_data() . .allow_internal_unstable . .map_or(false, |features| features.iter().any(|&f| f == feature)) 176 ( 0.00%) } . . /// Checks if this span arises from a compiler desugaring of kind `kind`. 616 ( 0.00%) pub fn is_desugaring(self, kind: DesugaringKind) -> bool { 528 ( 0.00%) match self.ctxt().outer_expn_data().kind { . ExpnKind::Desugaring(k) => k == kind, . _ => false, . } 440 ( 0.00%) } . . /// Returns the compiler desugaring that created this span, or `None` . /// if this span is not from a desugaring. 10 ( 0.00%) pub fn desugaring_kind(self) -> Option { 12 ( 0.00%) match self.ctxt().outer_expn_data().kind { . ExpnKind::Desugaring(k) => Some(k), . _ => None, . } 8 ( 0.00%) } . . /// Checks if a span is "internal" to a macro in which `unsafe` . /// can be used without triggering the `unsafe_code` lint. . // (that is, a macro marked with `#[allow_internal_unsafe]`). . pub fn allows_unsafe(self) -> bool { . self.ctxt().outer_expn_data().allow_internal_unsafe . } . -- line 745 ---------------------------------------- -- line 767 ---------------------------------------- . . /// Returns a `Span` that would enclose both `self` and `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^^^^^^^^ . /// ``` 22,528 ( 0.01%) pub fn to(self, end: Span) -> Span { . let span_data = self.data(); . let end_data = end.data(); . // FIXME(jseyfried): `self.ctxt` should always equal `end.ctxt` here (cf. issue #23480). . // Return the macro span on its own to avoid weird diagnostic output. It is preferable to . // have an incomplete span than a completely nonsensical one. 4,006 ( 0.00%) if span_data.ctxt != end_data.ctxt { 90 ( 0.00%) if span_data.ctxt == SyntaxContext::root() { . return end; 90 ( 0.00%) } else if end_data.ctxt == SyntaxContext::root() { . return self; . } . // Both spans fall within a macro. . // FIXME(estebank): check if it is the *same* macro. . } . Span::new( . cmp::min(span_data.lo, end_data.lo), . cmp::max(span_data.hi, end_data.hi), . if span_data.ctxt == SyntaxContext::root() { end_data.ctxt } else { span_data.ctxt }, 13,706 ( 0.01%) if span_data.parent == end_data.parent { span_data.parent } else { None }, . ) 18,432 ( 0.01%) } . . /// Returns a `Span` between the end of `self` to the beginning of `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^ . /// ``` 121 ( 0.00%) pub fn between(self, end: Span) -> Span { . let span = self.data(); . let end = end.data(); . Span::new( . span.hi, . end.lo, . if end.ctxt == SyntaxContext::root() { end.ctxt } else { span.ctxt }, 77 ( 0.00%) if span.parent == end.parent { span.parent } else { None }, . ) 88 ( 0.00%) } . . /// Returns a `Span` from the beginning of `self` until the beginning of `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^^^^^ . /// ``` 77 ( 0.00%) pub fn until(self, end: Span) -> Span { . // Most of this function's body is copied from `to`. . // We can't just do `self.to(end.shrink_to_lo())`, . // because to also does some magic where it uses min/max so . // it can handle overlapping spans. Some advanced mis-use of . // `until` with different ctxts makes this visible. . let span_data = self.data(); . let end_data = end.data(); . // FIXME(jseyfried): `self.ctxt` should always equal `end.ctxt` here (cf. issue #23480). . // Return the macro span on its own to avoid weird diagnostic output. It is preferable to . // have an incomplete span than a completely nonsensical one. 14 ( 0.00%) if span_data.ctxt != end_data.ctxt { . if span_data.ctxt == SyntaxContext::root() { . return end; . } else if end_data.ctxt == SyntaxContext::root() { . return self; . } . // Both spans fall within a macro. . // FIXME(estebank): check if it is the *same* macro. . } . Span::new( . span_data.lo, . end_data.lo, . if end_data.ctxt == SyntaxContext::root() { end_data.ctxt } else { span_data.ctxt }, 49 ( 0.00%) if span_data.parent == end_data.parent { span_data.parent } else { None }, . ) 63 ( 0.00%) } . 55 ( 0.00%) pub fn from_inner(self, inner: InnerSpan) -> Span { . let span = self.data(); . Span::new( . span.lo + BytePos::from_usize(inner.start), . span.lo + BytePos::from_usize(inner.end), . span.ctxt, . span.parent, . ) 35 ( 0.00%) } . . /// Equivalent of `Span::def_site` from the proc macro API, . /// except that the location is taken from the `self` span. . pub fn with_def_site_ctxt(self, expn_id: ExpnId) -> Span { 280 ( 0.00%) self.with_ctxt_from_mark(expn_id, Transparency::Opaque) . } . . /// Equivalent of `Span::call_site` from the proc macro API, . /// except that the location is taken from the `self` span. . pub fn with_call_site_ctxt(self, expn_id: ExpnId) -> Span { 2 ( 0.00%) self.with_ctxt_from_mark(expn_id, Transparency::Transparent) . } . . /// Equivalent of `Span::mixed_site` from the proc macro API, . /// except that the location is taken from the `self` span. . pub fn with_mixed_site_ctxt(self, expn_id: ExpnId) -> Span { . self.with_ctxt_from_mark(expn_id, Transparency::SemiTransparent) . } . . /// Produces a span with the same location as `self` and context produced by a macro with the . /// given ID and transparency, assuming that macro was defined directly and not produced by . /// some other macro (which is the case for built-in and procedural macros). 1,692 ( 0.00%) pub fn with_ctxt_from_mark(self, expn_id: ExpnId, transparency: Transparency) -> Span { . self.with_ctxt(SyntaxContext::root().apply_mark(expn_id, transparency)) 987 ( 0.00%) } . . #[inline] . pub fn apply_mark(self, expn_id: ExpnId, transparency: Transparency) -> Span { . let span = self.data(); 792 ( 0.00%) span.with_ctxt(span.ctxt.apply_mark(expn_id, transparency)) . } . . #[inline] . pub fn remove_mark(&mut self) -> ExpnId { . let mut span = self.data(); . let mark = span.ctxt.remove_mark(); . *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark -- line 897 ---------------------------------------- -- line 901 ---------------------------------------- . pub fn adjust(&mut self, expn_id: ExpnId) -> Option { . let mut span = self.data(); . let mark = span.ctxt.adjust(expn_id); . *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark . } . . #[inline] 3,213 ( 0.00%) pub fn normalize_to_macros_2_0_and_adjust(&mut self, expn_id: ExpnId) -> Option { 2,142 ( 0.00%) let mut span = self.data(); 1,747 ( 0.00%) let mark = span.ctxt.normalize_to_macros_2_0_and_adjust(expn_id); 3,213 ( 0.00%) *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark 3,532 ( 0.00%) } . . #[inline] . pub fn glob_adjust(&mut self, expn_id: ExpnId, glob_span: Span) -> Option> { 16 ( 0.00%) let mut span = self.data(); 24 ( 0.00%) let mark = span.ctxt.glob_adjust(expn_id, glob_span); 64 ( 0.00%) *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark . } . . #[inline] 9 ( 0.00%) pub fn reverse_glob_adjust( . &mut self, . expn_id: ExpnId, . glob_span: Span, . ) -> Option> { 16 ( 0.00%) let mut span = self.data(); 25 ( 0.00%) let mark = span.ctxt.reverse_glob_adjust(expn_id, glob_span); 49 ( 0.00%) *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark 10 ( 0.00%) } . . #[inline] 2,496 ( 0.00%) pub fn normalize_to_macros_2_0(self) -> Span { . let span = self.data(); . span.with_ctxt(span.ctxt.normalize_to_macros_2_0()) 2,184 ( 0.00%) } . . #[inline] . pub fn normalize_to_macro_rules(self) -> Span { . let span = self.data(); . span.with_ctxt(span.ctxt.normalize_to_macro_rules()) . } . } . -- line 948 ---------------------------------------- -- line 958 ---------------------------------------- . . /// What label should we attach to this span (if any)? . pub label: Option, . } . . impl Default for Span { . fn default() -> Self { . DUMMY_SP 2 ( 0.00%) } . } . . impl Encodable for Span { . default fn encode(&self, s: &mut E) -> Result<(), E::Error> { . let span = self.data(); . s.emit_struct(false, |s| { . s.emit_struct_field("lo", true, |s| span.lo.encode(s))?; . s.emit_struct_field("hi", false, |s| span.hi.encode(s)) -- line 974 ---------------------------------------- -- line 990 ---------------------------------------- . /// any spans that are debug-printed during the closure's execution. . /// . /// Normally, the global `TyCtxt` is used to retrieve the `SourceMap` . /// (see `rustc_interface::callbacks::span_debug1`). However, some parts . /// of the compiler (e.g. `rustc_parse`) may debug-print `Span`s before . /// a `TyCtxt` is available. In this case, we fall back to . /// the `SourceMap` provided to this function. If that is not available, . /// we fall back to printing the raw `Span` field values. 9 ( 0.00%) pub fn with_source_map T>(source_map: Lrc, f: F) -> T { . with_session_globals(|session_globals| { 2 ( 0.00%) *session_globals.source_map.borrow_mut() = Some(source_map); . }); . struct ClearSourceMap; . impl Drop for ClearSourceMap { . fn drop(&mut self) { . with_session_globals(|session_globals| { 1 ( 0.00%) session_globals.source_map.borrow_mut().take(); . }); . } . } . . let _guard = ClearSourceMap; 4 ( 0.00%) f() 8 ( 0.00%) } . . pub fn debug_with_source_map( . span: Span, . f: &mut fmt::Formatter<'_>, . source_map: &SourceMap, . ) -> fmt::Result { . write!(f, "{} ({:?})", source_map.span_to_diagnostic_string(span), span.ctxt()) . } -- line 1021 ---------------------------------------- -- line 1048 ---------------------------------------- . . impl MultiSpan { . #[inline] . pub fn new() -> MultiSpan { . MultiSpan { primary_spans: vec![], span_labels: vec![] } . } . . pub fn from_span(primary_span: Span) -> MultiSpan { 310 ( 0.00%) MultiSpan { primary_spans: vec![primary_span], span_labels: vec![] } . } . . pub fn from_spans(mut vec: Vec) -> MultiSpan { . vec.sort(); 25 ( 0.00%) MultiSpan { primary_spans: vec, span_labels: vec![] } . } . . pub fn push_span_label(&mut self, span: Span, label: String) { . self.span_labels.push((span, label)); . } . . /// Selects the first primary span (if any). . pub fn primary_span(&self) -> Option { . self.primary_spans.first().cloned() 57 ( 0.00%) } . . /// Returns all primary spans. . pub fn primary_spans(&self) -> &[Span] { . &self.primary_spans . } . . /// Returns `true` if any of the primary spans are displayable. . pub fn has_primary_spans(&self) -> bool { -- line 1079 ---------------------------------------- -- line 1139 ---------------------------------------- . . /// Returns `true` if any of the span labels is displayable. . pub fn has_span_labels(&self) -> bool { . self.span_labels.iter().any(|(sp, _)| !sp.is_dummy()) . } . } . . impl From for MultiSpan { 310 ( 0.00%) fn from(span: Span) -> MultiSpan { . MultiSpan::from_span(span) 310 ( 0.00%) } . } . . impl From> for MultiSpan { 25 ( 0.00%) fn from(spans: Vec) -> MultiSpan { 20 ( 0.00%) MultiSpan::from_spans(spans) 25 ( 0.00%) } . } . . /// Identifies an offset of a multi-byte character in a `SourceFile`. 22 ( 0.00%) #[derive(Copy, Clone, Encodable, Decodable, Eq, PartialEq, Debug)] . pub struct MultiByteChar { . /// The absolute offset of the character in the `SourceMap`. . pub pos: BytePos, . /// The number of bytes, `>= 2`. . pub bytes: u8, . } . . /// Identifies an offset of a non-narrow character in a `SourceFile`. 57,783 ( 0.03%) #[derive(Copy, Clone, Encodable, Decodable, Eq, PartialEq, Debug)] . pub enum NonNarrowChar { . /// Represents a zero-width character. . ZeroWidth(BytePos), . /// Represents a wide (full-width) character. . Wide(BytePos), . /// Represents a tab character, represented visually with a width of 4 characters. . Tab(BytePos), . } -- line 1176 ---------------------------------------- -- line 1201 ---------------------------------------- . } . } . } . . impl Add for NonNarrowChar { . type Output = Self; . . fn add(self, rhs: BytePos) -> Self { 532 ( 0.00%) match self { . NonNarrowChar::ZeroWidth(pos) => NonNarrowChar::ZeroWidth(pos + rhs), . NonNarrowChar::Wide(pos) => NonNarrowChar::Wide(pos + rhs), . NonNarrowChar::Tab(pos) => NonNarrowChar::Tab(pos + rhs), . } . } . } . . impl Sub for NonNarrowChar { . type Output = Self; . 154 ( 0.00%) fn sub(self, rhs: BytePos) -> Self { 532 ( 0.00%) match self { . NonNarrowChar::ZeroWidth(pos) => NonNarrowChar::ZeroWidth(pos - rhs), . NonNarrowChar::Wide(pos) => NonNarrowChar::Wide(pos - rhs), . NonNarrowChar::Tab(pos) => NonNarrowChar::Tab(pos - rhs), . } 462 ( 0.00%) } . } . . /// Identifies an offset of a character that was normalized away from `SourceFile`. . #[derive(Copy, Clone, Encodable, Decodable, Eq, PartialEq, Debug)] . pub struct NormalizedPos { . /// The absolute offset of the character in the `SourceMap`. . pub pos: BytePos, . /// The difference between original and normalized string at position. . pub diff: u32, . } . 6 ( 0.00%) #[derive(PartialEq, Eq, Clone, Debug)] . pub enum ExternalSource { . /// No external source has to be loaded, since the `SourceFile` represents a local crate. . Unneeded, . Foreign { . kind: ExternalSourceKind, . /// This SourceFile's byte-offset within the source_map of its original crate. . original_start_pos: BytePos, . /// The end of this SourceFile within the source_map of its original crate. -- line 1246 ---------------------------------------- -- line 1257 ---------------------------------------- . AbsentOk, . /// A failed attempt has been made to load the external source. . AbsentErr, . Unneeded, . } . . impl ExternalSource { . pub fn get_source(&self) -> Option<&Lrc> { 77 ( 0.00%) match self { . ExternalSource::Foreign { kind: ExternalSourceKind::Present(ref src), .. } => Some(src), . _ => None, . } . } . } . . #[derive(Debug)] . pub struct OffsetOverflowError; . 1,084 ( 0.00%) #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)] . pub enum SourceFileHashAlgorithm { . Md5, . Sha1, . Sha256, . } . . impl FromStr for SourceFileHashAlgorithm { . type Err = (); -- line 1283 ---------------------------------------- -- line 1290 ---------------------------------------- . _ => Err(()), . } . } . } . . rustc_data_structures::impl_stable_hash_via_hash!(SourceFileHashAlgorithm); . . /// The hash of the on-disk source file used for debug info. 12 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, Debug)] 2,168 ( 0.00%) #[derive(HashStable_Generic, Encodable, Decodable)] . pub struct SourceFileHash { . pub kind: SourceFileHashAlgorithm, . value: [u8; 32], . } . . impl SourceFileHash { . pub fn new(kind: SourceFileHashAlgorithm, src: &str) -> SourceFileHash { . let mut hash = SourceFileHash { kind, value: Default::default() }; . let len = hash.hash_len(); . let value = &mut hash.value[..len]; . let data = src.as_bytes(); . match kind { . SourceFileHashAlgorithm::Md5 => { 12 ( 0.00%) value.copy_from_slice(&Md5::digest(data)); . } . SourceFileHashAlgorithm::Sha1 => { . value.copy_from_slice(&Sha1::digest(data)); . } . SourceFileHashAlgorithm::Sha256 => { . value.copy_from_slice(&Sha256::digest(data)); . } . } -- line 1321 ---------------------------------------- -- line 1329 ---------------------------------------- . . /// The bytes of the hash. . pub fn hash_bytes(&self) -> &[u8] { . let len = self.hash_len(); . &self.value[..len] . } . . fn hash_len(&self) -> usize { 12 ( 0.00%) match self.kind { . SourceFileHashAlgorithm::Md5 => 16, . SourceFileHashAlgorithm::Sha1 => 20, . SourceFileHashAlgorithm::Sha256 => 32, . } . } . } . . /// A single source in the [`SourceMap`]. 116 ( 0.00%) #[derive(Clone)] . pub struct SourceFile { . /// The name of the file that the source came from. Source that doesn't . /// originate from files has names between angle brackets by convention . /// (e.g., ``). . pub name: FileName, . /// The complete source code. 2 ( 0.00%) pub src: Option>, . /// The source code's hash. . pub src_hash: SourceFileHash, . /// The external source code (used for external crates, which will have a `None` . /// value as `self.src`. . pub external_src: Lock, . /// The start position of this source in the `SourceMap`. . pub start_pos: BytePos, . /// The end position of this source in the `SourceMap`. -- line 1361 ---------------------------------------- -- line 1364 ---------------------------------------- . pub lines: Vec, . /// Locations of multi-byte characters in the source code. . pub multibyte_chars: Vec, . /// Width of characters that are not narrow in the source code. . pub non_narrow_chars: Vec, . /// Locations of characters removed during normalization. . pub normalized_pos: Vec, . /// A hash of the filename, used for speeding up hashing in incremental compilation. 2 ( 0.00%) pub name_hash: u128, . /// Indicates which crate this `SourceFile` was imported from. 2 ( 0.00%) pub cnum: CrateNum, . } . . impl Encodable for SourceFile { . fn encode(&self, s: &mut S) -> Result<(), S::Error> { . s.emit_struct(false, |s| { . s.emit_struct_field("name", true, |s| self.name.encode(s))?; . s.emit_struct_field("src_hash", false, |s| self.src_hash.encode(s))?; . s.emit_struct_field("start_pos", false, |s| self.start_pos.encode(s))?; . s.emit_struct_field("end_pos", false, |s| self.end_pos.encode(s))?; . s.emit_struct_field("lines", false, |s| { . let lines = &self.lines[..]; . // Store the length. . s.emit_u32(lines.len() as u32)?; . 8 ( 0.00%) if !lines.is_empty() { . // In order to preserve some space, we exploit the fact that . // the lines list is sorted and individual lines are . // probably not that long. Because of that we can store lines . // as a difference list, using as little space as possible . // for the differences. . let max_line_length = if lines.len() == 1 { . 0 . } else { -- line 1397 ---------------------------------------- -- line 1399 ---------------------------------------- . .array_windows() . .map(|&[fst, snd]| snd - fst) . .map(|bp| bp.to_usize()) . .max() . .unwrap() . }; . . let bytes_per_diff: u8 = match max_line_length { 4 ( 0.00%) 0..=0xFF => 1, . 0x100..=0xFFFF => 2, . _ => 4, . }; . . // Encode the number of bytes used per diff. . bytes_per_diff.encode(s)?; . . // Encode the first element. . lines[0].encode(s)?; . . let diff_iter = lines.array_windows().map(|&[fst, snd]| snd - fst); . 4 ( 0.00%) match bytes_per_diff { . 1 => { . for diff in diff_iter { . (diff.0 as u8).encode(s)? . } . } . 2 => { . for diff in diff_iter { . (diff.0 as u16).encode(s)? -- line 1428 ---------------------------------------- -- line 1436 ---------------------------------------- . _ => unreachable!(), . } . } . . Ok(()) . })?; . s.emit_struct_field("multibyte_chars", false, |s| self.multibyte_chars.encode(s))?; . s.emit_struct_field("non_narrow_chars", false, |s| self.non_narrow_chars.encode(s))?; 6 ( 0.00%) s.emit_struct_field("name_hash", false, |s| self.name_hash.encode(s))?; . s.emit_struct_field("normalized_pos", false, |s| self.normalized_pos.encode(s))?; 22 ( 0.00%) s.emit_struct_field("cnum", false, |s| self.cnum.encode(s)) . }) . } . } . . impl Decodable for SourceFile { 4,878 ( 0.00%) fn decode(d: &mut D) -> SourceFile { . d.read_struct(|d| { . let name: FileName = d.read_struct_field("name", |d| Decodable::decode(d)); . let src_hash: SourceFileHash = . d.read_struct_field("src_hash", |d| Decodable::decode(d)); . let start_pos: BytePos = d.read_struct_field("start_pos", |d| Decodable::decode(d)); . let end_pos: BytePos = d.read_struct_field("end_pos", |d| Decodable::decode(d)); . let lines: Vec = d.read_struct_field("lines", |d| { . let num_lines: u32 = Decodable::decode(d); 542 ( 0.00%) let mut lines = Vec::with_capacity(num_lines as usize); . . if num_lines > 0 { . // Read the number of bytes used per diff. . let bytes_per_diff: u8 = Decodable::decode(d); . . // Read the first element. . let mut line_start: BytePos = Decodable::decode(d); . lines.push(line_start); . . for _ in 1..num_lines { 881,778 ( 0.43%) let diff = match bytes_per_diff { . 1 => d.read_u8() as u32, . 2 => d.read_u16() as u32, . 4 => d.read_u32(), . _ => unreachable!(), . }; . . line_start = line_start + BytePos(diff); . -- line 1480 ---------------------------------------- -- line 1483 ---------------------------------------- . } . . lines . }); . let multibyte_chars: Vec = . d.read_struct_field("multibyte_chars", |d| Decodable::decode(d)); . let non_narrow_chars: Vec = . d.read_struct_field("non_narrow_chars", |d| Decodable::decode(d)); 1,084 ( 0.00%) let name_hash: u128 = d.read_struct_field("name_hash", |d| Decodable::decode(d)); . let normalized_pos: Vec = . d.read_struct_field("normalized_pos", |d| Decodable::decode(d)); . let cnum: CrateNum = d.read_struct_field("cnum", |d| Decodable::decode(d)); 5,962 ( 0.00%) SourceFile { 4,336 ( 0.00%) name, . start_pos, . end_pos, . src: None, 2,168 ( 0.00%) src_hash, . // Unused - the metadata decoder will construct . // a new SourceFile, filling in `external_src` properly . external_src: Lock::new(ExternalSource::Unneeded), 2,168 ( 0.00%) lines, 2,168 ( 0.00%) multibyte_chars, 2,168 ( 0.00%) non_narrow_chars, 2,168 ( 0.00%) normalized_pos, . name_hash, . cnum, . } . }) 4,878 ( 0.00%) } . } . . impl fmt::Debug for SourceFile { . fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { . write!(fmt, "SourceFile({:?})", self.name) . } . } . . impl SourceFile { 44 ( 0.00%) pub fn new( . name: FileName, . mut src: String, . start_pos: BytePos, . hash_kind: SourceFileHashAlgorithm, . ) -> Self { . // Compute the file hash before any normalization. . let src_hash = SourceFileHash::new(hash_kind, &src); 12 ( 0.00%) let normalized_pos = normalize_src(&mut src, start_pos); . . let name_hash = { . let mut hasher: StableHasher = StableHasher::new(); 8 ( 0.00%) name.hash(&mut hasher); . hasher.finish::() . }; 8 ( 0.00%) let end_pos = start_pos.to_usize() + src.len(); 12 ( 0.00%) assert!(end_pos <= u32::MAX as usize); . 48 ( 0.00%) let (lines, multibyte_chars, non_narrow_chars) = 8 ( 0.00%) analyze_source_file::analyze_source_file(&src, start_pos); . 68 ( 0.00%) SourceFile { . name, . src: Some(Lrc::new(src)), 44 ( 0.00%) src_hash, . external_src: Lock::new(ExternalSource::Unneeded), . start_pos, . end_pos: Pos::from_usize(end_pos), 16 ( 0.00%) lines, 16 ( 0.00%) multibyte_chars, 16 ( 0.00%) non_narrow_chars, 16 ( 0.00%) normalized_pos, . name_hash, . cnum: LOCAL_CRATE, . } 36 ( 0.00%) } . . /// Returns the `BytePos` of the beginning of the current line. . pub fn line_begin_pos(&self, pos: BytePos) -> BytePos { . let line_index = self.lookup_line(pos).unwrap(); . self.lines[line_index] . } . . /// Add externally loaded source. . /// If the hash of the input doesn't match or no input is supplied via None, . /// it is interpreted as an error and the corresponding enum variant is set. . /// The return value signifies whether some kind of source is present. 371 ( 0.00%) pub fn add_external_src(&self, get_src: F) -> bool . where . F: FnOnce() -> Option, . { 53 ( 0.00%) if matches!( 106 ( 0.00%) *self.external_src.borrow(), . ExternalSource::Foreign { kind: ExternalSourceKind::AbsentOk, .. } . ) { . let src = get_src(); . let mut external_src = self.external_src.borrow_mut(); . // Check that no-one else have provided the source while we were getting it . if let ExternalSource::Foreign { . kind: src_kind @ ExternalSourceKind::AbsentOk, .. . } = &mut *external_src -- line 1582 ---------------------------------------- -- line 1592 ---------------------------------------- . *src_kind = ExternalSourceKind::AbsentErr; . } . . false . } else { . self.src.is_some() || external_src.get_source().is_some() . } . } else { 53 ( 0.00%) self.src.is_some() || self.external_src.borrow().get_source().is_some() . } 477 ( 0.00%) } . . /// Gets a line from the list of pre-computed line-beginnings. . /// The line number here is 0-based. . pub fn get_line(&self, line_number: usize) -> Option> { . fn get_until_newline(src: &str, begin: usize) -> &str { . // We can't use `lines.get(line_number+1)` because we might . // be parsing when we call this function and thus the current . // line is the last one we have line info for. -- line 1610 ---------------------------------------- -- line 1627 ---------------------------------------- . Some(Cow::Owned(String::from(get_until_newline(src, begin)))) . } else { . None . } . } . . pub fn is_real_file(&self) -> bool { . self.name.is_real() 544 ( 0.00%) } . . pub fn is_imported(&self) -> bool { . self.src.is_none() 11,489 ( 0.01%) } . . pub fn count_lines(&self) -> usize { . self.lines.len() . } . . /// Finds the line containing the given position. The return value is the . /// index into the `lines` array of this `SourceFile`, not the 1-based line . /// number. If the source_file is empty or the position is located before the . /// first line, `None` is returned. . pub fn lookup_line(&self, pos: BytePos) -> Option { 3,756 ( 0.00%) match self.lines.binary_search(&pos) { . Ok(idx) => Some(idx), . Err(0) => None, . Err(idx) => Some(idx - 1), . } . } . . pub fn line_bounds(&self, line_index: usize) -> Range { 9,134 ( 0.00%) if self.is_empty() { . return self.start_pos..self.end_pos; . } . 6,145 ( 0.00%) assert!(line_index < self.lines.len()); 9,087 ( 0.00%) if line_index == (self.lines.len() - 1) { 10 ( 0.00%) self.lines[line_index]..self.end_pos . } else { 6,050 ( 0.00%) self.lines[line_index]..self.lines[line_index + 1] . } . } . . /// Returns whether or not the file contains the given `SourceMap` byte . /// position. The position one past the end of the file is considered to be . /// contained by the file. This implies that files for which `is_empty` . /// returns true still contain one byte position according to this function. . #[inline] -- line 1674 ---------------------------------------- -- line 1692 ---------------------------------------- . Err(i) if i == 0 => 0, . Err(i) => self.normalized_pos[i - 1].diff, . }; . . BytePos::from_u32(pos.0 - self.start_pos.0 + diff) . } . . /// Converts an absolute `BytePos` to a `CharPos` relative to the `SourceFile`. 2 ( 0.00%) pub fn bytepos_to_file_charpos(&self, bpos: BytePos) -> CharPos { . // The number of extra bytes due to multibyte chars in the `SourceFile`. . let mut total_extra_bytes = 0; . 6 ( 0.00%) for mbc in self.multibyte_chars.iter() { . debug!("{}-byte char at {:?}", mbc.bytes, mbc.pos); . if mbc.pos < bpos { . // Every character is at least one byte, so we only . // count the actual extra bytes. . total_extra_bytes += mbc.bytes as u32 - 1; . // We should never see a byte position in the middle of a . // character. . assert!(bpos.to_u32() >= mbc.pos.to_u32() + mbc.bytes as u32); . } else { . break; . } . } . 12 ( 0.00%) assert!(self.start_pos.to_u32() + total_extra_bytes <= bpos.to_u32()); 10 ( 0.00%) CharPos(bpos.to_usize() - self.start_pos.to_usize() - total_extra_bytes as usize) 4 ( 0.00%) } . . /// Looks up the file's (1-based) line number and (0-based `CharPos`) column offset, for a . /// given `BytePos`. 7 ( 0.00%) pub fn lookup_file_pos(&self, pos: BytePos) -> (usize, CharPos) { 2 ( 0.00%) let chpos = self.bytepos_to_file_charpos(pos); . match self.lookup_line(pos) { . Some(a) => { . let line = a + 1; // Line numbers start at 1 1 ( 0.00%) let linebpos = self.lines[a]; 2 ( 0.00%) let linechpos = self.bytepos_to_file_charpos(linebpos); . let col = chpos - linechpos; . debug!("byte pos {:?} is on the line at byte pos {:?}", pos, linebpos); . debug!("char pos {:?} is on the line at char pos {:?}", chpos, linechpos); . debug!("byte is on line: {}", line); 1 ( 0.00%) assert!(chpos >= linechpos); . (line, col) . } . None => (0, chpos), . } 8 ( 0.00%) } . . /// Looks up the file's (1-based) line number, (0-based `CharPos`) column offset, and (0-based) . /// column offset when displayed, for a given `BytePos`. 8 ( 0.00%) pub fn lookup_file_pos_with_col_display(&self, pos: BytePos) -> (usize, CharPos, usize) { 3 ( 0.00%) let (line, col_or_chpos) = self.lookup_file_pos(pos); 2 ( 0.00%) if line > 0 { . let col = col_or_chpos; 1 ( 0.00%) let linebpos = self.lines[line - 1]; . let col_display = { . let start_width_idx = self . .non_narrow_chars . .binary_search_by_key(&linebpos, |x| x.pos()) . .unwrap_or_else(|x| x); . let end_width_idx = self . .non_narrow_chars . .binary_search_by_key(&pos, |x| x.pos()) . .unwrap_or_else(|x| x); . let special_chars = end_width_idx - start_width_idx; . let non_narrow: usize = self.non_narrow_chars[start_width_idx..end_width_idx] . .iter() . .map(|x| x.width()) . .sum(); 5 ( 0.00%) col.0 - special_chars + non_narrow . }; . (line, col, col_display) . } else { . let chpos = col_or_chpos; . let col_display = { . let end_width_idx = self . .non_narrow_chars . .binary_search_by_key(&pos, |x| x.pos()) . .unwrap_or_else(|x| x); . let non_narrow: usize = . self.non_narrow_chars[0..end_width_idx].iter().map(|x| x.width()).sum(); . chpos.0 - end_width_idx + non_narrow . }; . (0, chpos, col_display) . } 7 ( 0.00%) } . } . . /// Normalizes the source code and records the normalizations. 40 ( 0.00%) fn normalize_src(src: &mut String, start_pos: BytePos) -> Vec { . let mut normalized_pos = vec![]; . remove_bom(src, &mut normalized_pos); . normalize_newlines(src, &mut normalized_pos); . . // Offset all the positions by start_pos to match the final file positions. . for np in &mut normalized_pos { . np.pos.0 += start_pos.0; . } . . normalized_pos 36 ( 0.00%) } . . /// Removes UTF-8 BOM, if any. . fn remove_bom(src: &mut String, normalized_pos: &mut Vec) { 4 ( 0.00%) if src.starts_with('\u{feff}') { . src.drain(..3); . normalized_pos.push(NormalizedPos { pos: BytePos(0), diff: 3 }); . } . } . . /// Replaces `\r\n` with `\n` in-place in `src`. . /// . /// Returns error if there's a lone `\r` in the string. . fn normalize_newlines(src: &mut String, normalized_pos: &mut Vec) { 4 ( 0.00%) if !src.as_bytes().contains(&b'\r') { . return; . } . . // We replace `\r\n` with `\n` in-place, which doesn't break utf-8 encoding. . // While we *can* call `as_mut_vec` and do surgery on the live string . // directly, let's rather steal the contents of `src`. This makes the code . // safe even if a panic occurs. . -- line 1816 ---------------------------------------- -- line 1877 ---------------------------------------- . ( . $( . $(#[$attr:meta])* . $vis:vis struct $ident:ident($inner_vis:vis $inner_ty:ty); . )* . ) => { . $( . $(#[$attr])* 16,633 ( 0.01%) $vis struct $ident($inner_vis $inner_ty); . . impl Pos for $ident { . #[inline(always)] . fn from_usize(n: usize) -> $ident { 185 ( 0.00%) $ident(n as $inner_ty) . } . . #[inline(always)] . fn to_usize(&self) -> usize { 37,541 ( 0.02%) self.0 as usize . } . . #[inline(always)] . fn from_u32(n: u32) -> $ident { . $ident(n as $inner_ty) . } . . #[inline(always)] -- line 1903 ---------------------------------------- -- line 1906 ---------------------------------------- . } . } . . impl Add for $ident { . type Output = $ident; . . #[inline(always)] . fn add(self, rhs: $ident) -> $ident { 1,543,861 ( 0.75%) $ident(self.0 + rhs.0) . } . } . . impl Sub for $ident { . type Output = $ident; . . #[inline(always)] . fn sub(self, rhs: $ident) -> $ident { 1,035,050 ( 0.51%) $ident(self.0 - rhs.0) . } . } . )* . }; . } . . impl_pos! { . /// A byte offset. -- line 1931 ---------------------------------------- -- line 1939 ---------------------------------------- . /// Because of multibyte UTF-8 characters, a byte offset . /// is not equivalent to a character offset. The [`SourceMap`] will convert [`BytePos`] . /// values to `CharPos` values as necessary. . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug)] . pub struct CharPos(pub usize); . } . . impl Encodable for BytePos { 26,125 ( 0.01%) fn encode(&self, s: &mut S) -> Result<(), S::Error> { . s.emit_u32(self.0) 31,350 ( 0.02%) } . } . . impl Decodable for BytePos { . fn decode(d: &mut D) -> BytePos { 34,542 ( 0.02%) BytePos(d.read_u32()) . } . } . . // _____________________________________________________________________________ . // Loc, SourceFileAndLine, SourceFileAndBytePos . // . . /// A source code location used for error reporting. -- line 1962 ---------------------------------------- -- line 2042 ---------------------------------------- . /// Range inside of a `Span` used for diagnostics when we only have access to relative positions. . #[derive(Copy, Clone, PartialEq, Eq, Debug)] . pub struct InnerSpan { . pub start: usize, . pub end: usize, . } . . impl InnerSpan { 36 ( 0.00%) pub fn new(start: usize, end: usize) -> InnerSpan { . InnerSpan { start, end } 18 ( 0.00%) } . } . . /// Requirements for a `StableHashingContext` to be used in this crate. . /// . /// This is a hack to allow using the [`HashStable_Generic`] derive macro . /// instead of implementing everything in rustc_middle. . pub trait HashStableContext { . fn def_path_hash(&self, def_id: DefId) -> DefPathHash; -- line 2060 ---------------------------------------- -- line 2079 ---------------------------------------- . /// offsets into the `SourceMap`). Instead, we hash the (file name, line, column) . /// triple, which stays the same even if the containing `SourceFile` has moved . /// within the `SourceMap`. . /// . /// Also note that we are hashing byte offsets for the column, not unicode . /// codepoint offsets. For the purpose of the hash that's sufficient. . /// Also, hashing filenames is expensive so we avoid doing it twice when the . /// span starts and ends in the same file, which is almost always the case. 167,286 ( 0.08%) fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher) { . const TAG_VALID_SPAN: u8 = 0; . const TAG_INVALID_SPAN: u8 = 1; . const TAG_RELATIVE_SPAN: u8 = 2; . 45,594 ( 0.02%) if !ctx.hash_spans() { . return; . } . 121,692 ( 0.06%) let span = self.data_untracked(); 6,614 ( 0.00%) span.ctxt.hash_stable(ctx, hasher); 71,694 ( 0.04%) span.parent.hash_stable(ctx, hasher); . 47,861 ( 0.02%) if span.is_dummy() { . Hash::hash(&TAG_INVALID_SPAN, hasher); . return; . } . 47,666 ( 0.02%) if let Some(parent) = span.parent { . let def_span = ctx.def_span(parent).data_untracked(); . if def_span.contains(span) { . // This span is enclosed in a definition: only hash the relative position. . Hash::hash(&TAG_RELATIVE_SPAN, hasher); . (span.lo - def_span.lo).to_u32().hash_stable(ctx, hasher); . (span.hi - def_span.lo).to_u32().hash_stable(ctx, hasher); . return; . } . } . . // If this is not an empty or invalid span, we want to hash the last . // position that belongs to it, as opposed to hashing the first . // position past it. 95,332 ( 0.05%) let (file, line_lo, col_lo, line_hi, col_hi) = match ctx.span_data_to_lines_and_cols(&span) . { 47,666 ( 0.02%) Some(pos) => pos, . None => { . Hash::hash(&TAG_INVALID_SPAN, hasher); . return; . } . }; . . Hash::hash(&TAG_VALID_SPAN, hasher); . // We truncate the stable ID hash and line and column numbers. The chances -- line 2129 ---------------------------------------- -- line 2134 ---------------------------------------- . // hash only the length, for example, then two otherwise equal spans with . // different end locations will have the same hash. This can cause a problem . // during incremental compilation wherein a previous result for a query that . // depends on the end location of a span will be incorrectly reused when the . // end location of the span it depends on has changed (see issue #74890). A . // similar analysis applies if some query depends specifically on the length . // of the span, but we only hash the end location. So hash both. . 23,833 ( 0.01%) let col_lo_trunc = (col_lo.0 as u64) & 0xFF; . let line_lo_trunc = ((line_lo as u64) & 0xFF_FF_FF) << 8; . let col_hi_trunc = (col_hi.0 as u64) & 0xFF << 32; . let line_hi_trunc = ((line_hi as u64) & 0xFF_FF_FF) << 40; . let col_line = col_lo_trunc | line_lo_trunc | col_hi_trunc | line_hi_trunc; 23,833 ( 0.01%) let len = (span.hi - span.lo).0; . Hash::hash(&col_line, hasher); . Hash::hash(&len, hasher); 191,184 ( 0.09%) } . } 1,487,660 ( 0.73%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs -------------------------------------------------------------------------------- Ir -- line 17 ---------------------------------------- . #[inline] . pub fn $fn_name( . out: &mut [::std::mem::MaybeUninit; max_leb128_len!($int_ty)], . mut value: $int_ty, . ) -> &[u8] { . let mut i = 0; . . loop { 253,511 ( 0.12%) if value < 0x80 { . unsafe { 86,509 ( 0.04%) *out.get_unchecked_mut(i).as_mut_ptr() = value as u8; . } . 105,814 ( 0.05%) i += 1; . break; . } else { . unsafe { 196,876 ( 0.10%) *out.get_unchecked_mut(i).as_mut_ptr() = ((value & 0x7f) | 0x80) as u8; . } . 71,236 ( 0.03%) value >>= 7; . i += 1; . } . } . . unsafe { ::std::mem::MaybeUninit::slice_assume_init_ref(&out.get_unchecked(..i)) } . } . }; . } -- line 45 ---------------------------------------- -- line 53 ---------------------------------------- . macro_rules! impl_read_unsigned_leb128 { . ($fn_name:ident, $int_ty:ty) => { . #[inline] . pub fn $fn_name(slice: &[u8], position: &mut usize) -> $int_ty { . // The first iteration of this loop is unpeeled. This is a . // performance win because this code is hot and integer values less . // than 128 are very common, typically occurring 50-80% or more of . // the time, even for u64 and u128. 1,093,848 ( 0.53%) let byte = slice[*position]; 546,924 ( 0.27%) *position += 1; 546,924 ( 0.27%) if (byte & 0x80) == 0 { 78 ( 0.00%) return byte as $int_ty; . } 1,084 ( 0.00%) let mut result = (byte & 0x7F) as $int_ty; . let mut shift = 7; . loop { 381,465 ( 0.19%) let byte = slice[*position]; 247,687 ( 0.12%) *position += 1; 254,310 ( 0.12%) if (byte & 0x80) == 0 { 199,892 ( 0.10%) result |= (byte as $int_ty) << shift; . return result; . } else { . result |= ((byte & 0x7F) as $int_ty) << shift; . } . shift += 7; . } . } . }; -- line 80 ---------------------------------------- 442,942 ( 0.22%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/rustc-hash-1.1.0/src/lib.rs -------------------------------------------------------------------------------- Ir -- line 71 ---------------------------------------- . fn default() -> FxHasher { . FxHasher { hash: 0 } . } . } . . impl FxHasher { . #[inline] . fn add_to_hash(&mut self, i: usize) { 128,744 ( 0.06%) self.hash = self.hash.rotate_left(5).bitxor(i).wrapping_mul(K); . } . } . . impl Hasher for FxHasher { . #[inline] 1,341 ( 0.00%) fn write(&mut self, mut bytes: &[u8]) { . #[cfg(target_pointer_width = "32")] . let read_usize = |bytes: &[u8]| u32::from_ne_bytes(bytes[..4].try_into().unwrap()); . #[cfg(target_pointer_width = "64")] . let read_usize = |bytes: &[u8]| u64::from_ne_bytes(bytes[..8].try_into().unwrap()); . 37,060 ( 0.02%) let mut hash = FxHasher { hash: self.hash }; . assert!(size_of::() <= 8); 379,728 ( 0.19%) while bytes.len() >= size_of::() { . hash.add_to_hash(read_usize(bytes) as usize); . bytes = &bytes[size_of::()..]; . } 73,196 ( 0.04%) if (size_of::() > 4) && (bytes.len() >= 4) { . hash.add_to_hash(u32::from_ne_bytes(bytes[..4].try_into().unwrap()) as usize); . bytes = &bytes[4..]; . } 73,196 ( 0.04%) if (size_of::() > 2) && bytes.len() >= 2 { . hash.add_to_hash(u16::from_ne_bytes(bytes[..2].try_into().unwrap()) as usize); . bytes = &bytes[2..]; . } 81,471 ( 0.04%) if (size_of::() > 1) && bytes.len() >= 1 { 19,396 ( 0.01%) hash.add_to_hash(bytes[0] as usize); . } 2,062 ( 0.00%) self.hash = hash.hash; 1,341 ( 0.00%) } . . #[inline] . fn write_u8(&mut self, i: u8) { 28 ( 0.00%) self.add_to_hash(i as usize); . } . . #[inline] . fn write_u16(&mut self, i: u16) { 32 ( 0.00%) self.add_to_hash(i as usize); . } . . #[inline] . fn write_u32(&mut self, i: u32) { 143,828 ( 0.07%) self.add_to_hash(i as usize); . } . . #[cfg(target_pointer_width = "32")] . #[inline] . fn write_u64(&mut self, i: u64) { . self.add_to_hash(i as usize); . self.add_to_hash((i >> 32) as usize); . } -- line 131 ---------------------------------------- 1 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs -------------------------------------------------------------------------------- Ir -- line 14 ---------------------------------------- . . pub type EncodeResult = Result<(), !>; . . pub struct Encoder { . pub data: Vec, . } . . impl Encoder { 1 ( 0.00%) pub fn new(data: Vec) -> Encoder { 4 ( 0.00%) Encoder { data } 1 ( 0.00%) } . 1 ( 0.00%) pub fn into_inner(self) -> Vec { 4 ( 0.00%) self.data 1 ( 0.00%) } . . #[inline] . pub fn position(&self) -> usize { 1,505 ( 0.00%) self.data.len() . } . } . . macro_rules! write_leb128 { . ($enc:expr, $value:expr, $int_ty:ty, $fun:ident) => {{ . const MAX_ENCODED_LEN: usize = max_leb128_len!($int_ty); . let old_len = $enc.data.len(); . -- line 40 ---------------------------------------- -- line 67 ---------------------------------------- . . #[inline] . fn emit_unit(&mut self) -> EncodeResult { . Ok(()) . } . . #[inline] . fn emit_usize(&mut self, v: usize) -> EncodeResult { 275,394 ( 0.13%) write_leb128!(self, v, usize, write_usize_leb128) . } . . #[inline] . fn emit_u128(&mut self, v: u128) -> EncodeResult { 14 ( 0.00%) write_leb128!(self, v, u128, write_u128_leb128) . } . . #[inline] . fn emit_u64(&mut self, v: u64) -> EncodeResult { 287 ( 0.00%) write_leb128!(self, v, u64, write_u64_leb128) . } . . #[inline] . fn emit_u32(&mut self, v: u32) -> EncodeResult { 255,710 ( 0.12%) write_leb128!(self, v, u32, write_u32_leb128) . } . . #[inline] . fn emit_u16(&mut self, v: u16) -> EncodeResult { . self.data.extend_from_slice(&v.to_le_bytes()); . Ok(()) . } . -- line 98 ---------------------------------------- -- line 131 ---------------------------------------- . #[inline] . fn emit_i8(&mut self, v: i8) -> EncodeResult { . let as_u8: u8 = unsafe { std::mem::transmute(v) }; . self.emit_u8(as_u8) . } . . #[inline] . fn emit_bool(&mut self, v: bool) -> EncodeResult { 4,304 ( 0.00%) self.emit_u8(if v { 1 } else { 0 }) . } . . #[inline] . fn emit_f64(&mut self, v: f64) -> EncodeResult { . let as_u64: u64 = v.to_bits(); . self.emit_u64(as_u64) . } . -- line 147 ---------------------------------------- -- line 549 ---------------------------------------- . #[inline] . pub fn advance(&mut self, bytes: usize) { . self.position += bytes; . } . . #[inline] . pub fn read_raw_bytes(&mut self, bytes: usize) -> &'a [u8] { . let start = self.position; 23 ( 0.00%) self.position += bytes; 23 ( 0.00%) &self.data[start..self.position] . } . } . . macro_rules! read_leb128 { . ($dec:expr, $fun:ident) => {{ leb128::$fun($dec.data, &mut $dec.position) }}; . } . . impl<'a> serialize::Decoder for Decoder<'a> { . #[inline] . fn read_unit(&mut self) -> () { . () . } . . #[inline] . fn read_u128(&mut self) -> u128 { 581 ( 0.00%) read_leb128!(self, read_u128_leb128) . } . . #[inline] . fn read_u64(&mut self) -> u64 { 2,720 ( 0.00%) read_leb128!(self, read_u64_leb128) . } . . #[inline] 19,308 ( 0.01%) fn read_u32(&mut self) -> u32 { 105,512 ( 0.05%) read_leb128!(self, read_u32_leb128) 38,616 ( 0.02%) } . . #[inline] . fn read_u16(&mut self) -> u16 { 561,386 ( 0.27%) let bytes = [self.data[self.position], self.data[self.position + 1]]; 80,198 ( 0.04%) let value = u16::from_le_bytes(bytes); 160,396 ( 0.08%) self.position += 2; . value . } . . #[inline] . fn read_u8(&mut self) -> u8 { 1,803,030 ( 0.88%) let value = self.data[self.position]; 336,249 ( 0.16%) self.position += 1; . value . } . . #[inline] 164,639 ( 0.08%) fn read_usize(&mut self) -> usize { 164,649 ( 0.08%) read_leb128!(self, read_usize_leb128) 329,278 ( 0.16%) } . . #[inline] . fn read_i128(&mut self) -> i128 { . read_leb128!(self, read_i128_leb128) . } . . #[inline] . fn read_i64(&mut self) -> i64 { -- line 613 ---------------------------------------- -- line 637 ---------------------------------------- . #[inline] . fn read_isize(&mut self) -> isize { . read_leb128!(self, read_isize_leb128) . } . . #[inline] . fn read_bool(&mut self) -> bool { . let value = self.read_u8(); 3,214 ( 0.00%) value != 0 . } . . #[inline] . fn read_f64(&mut self) -> f64 { . let bits = self.read_u64(); . f64::from_bits(bits) . } . -- line 653 ---------------------------------------- -- line 660 ---------------------------------------- . #[inline] . fn read_char(&mut self) -> char { . let bits = self.read_u32(); . std::char::from_u32(bits).unwrap() . } . . #[inline] . fn read_str(&mut self) -> Cow<'_, str> { 27,692 ( 0.01%) let len = self.read_usize(); 130,938 ( 0.06%) let sentinel = self.data[self.position + len]; 32,742 ( 0.02%) assert!(sentinel == STR_SENTINEL); . let s = unsafe { . std::str::from_utf8_unchecked(&self.data[self.position..self.position + len]) . }; 81,855 ( 0.04%) self.position += len + 1; 33,993 ( 0.02%) Cow::Borrowed(s) . } . . #[inline] . fn read_raw_bytes_into(&mut self, s: &mut [u8]) { 71 ( 0.00%) let start = self.position; 347 ( 0.00%) self.position += s.len(); 71 ( 0.00%) s.copy_from_slice(&self.data[start..self.position]); . } . } . . // Specializations for contiguous byte sequences follow. The default implementations for slices . // encode and decode each element individually. This isn't necessary for `u8` slices when using . // opaque encoders and decoders, because each `u8` is unchanged by encoding and decoding. . // Therefore, we can use more efficient implementations that process the entire sequence at once. . -- line 690 ---------------------------------------- 494,882 ( 0.24%) -------------------------------------------------------------------------------- The following files chosen for auto-annotation could not be found: -------------------------------------------------------------------------------- ./elf/../sysdeps/x86_64/dl-machine.h ./elf/dl-lookup.c ./elf/do-rel.h ./malloc/malloc.c ./stdlib/cxa_finalize.c ./string/../sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S ./string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S ./string/../sysdeps/x86_64/strcmp.S -------------------------------------------------------------------------------- Ir -------------------------------------------------------------------------------- 90,848,050 (44.38%) events annotated