-------------------------------------------------------------------------------- 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 atty 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 -C metadata=f7acd3ab44ca2190 -C extra-filename=-f7acd3ab44ca2190 --out-dir /usr/home/liquid/tmp/.tmphooy7w/target/debug/deps -L dependency=/usr/home/liquid/tmp/.tmphooy7w/target/debug/deps --extern libc=/usr/home/liquid/tmp/.tmphooy7w/target/debug/deps/liblibc-e59c973bb3efa22d.rmeta -Adeprecated -Aunknown-lints -Zincremental-verify-ich Data file: results/cgout-w-profiling-atty-0.2.14-Check-Full Events recorded: Ir Events shown: Ir Event sort order: Ir Thresholds: 0.1 Include dirs: User annotated: Auto-annotation: on -------------------------------------------------------------------------------- Ir -------------------------------------------------------------------------------- 79,568,286 (100.0%) PROGRAM TOTALS -------------------------------------------------------------------------------- Ir file:function -------------------------------------------------------------------------------- 10,305,124 (12.95%) ./elf/dl-lookup.c:_dl_lookup_symbol_x 4,835,679 ( 6.08%) ./elf/dl-lookup.c:do_lookup_x 4,141,271 ( 5.20%) ./elf/../sysdeps/x86_64/dl-machine.h:_dl_relocate_object 2,193,377 ( 2.76%) ./malloc/malloc.c:_int_malloc 2,139,033 ( 2.69%) ./elf/do-rel.h:_dl_relocate_object 2,068,112 ( 2.60%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:>::decode 1,748,970 ( 2.20%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/vec/mod.rs:>::decode 1,688,149 ( 2.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:>::decode 1,362,217 ( 1.71%) ???:SetImpliedBits(llvm::FeatureBitset&, llvm::FeatureBitset const&, llvm::ArrayRef) 1,349,711 ( 1.70%) ./malloc/malloc.c:_int_free 1,128,579 ( 1.42%) ./string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:__memcpy_avx_unaligned_erms 1,014,256 ( 1.27%) ./malloc/malloc.c:malloc 889,486 ( 1.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:>::decode 864,856 ( 1.09%) ./elf/dl-lookup.c:check_match 798,776 ( 1.00%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/mod.rs:>::decode 756,618 ( 0.95%) /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}> 754,116 ( 0.95%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:::new_imported_source_file 752,405 ( 0.95%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:::new_imported_source_file 752,231 ( 0.95%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/rustc-hash-1.1.0/src/lib.rs:<&str as core::hash::Hash>::hash:: 650,525 ( 0.82%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u32 544,970 ( 0.68%) /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}> 529,040 ( 0.66%) ./string/../sysdeps/x86_64/strcmp.S:strcmp 525,160 ( 0.66%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u32 501,926 ( 0.63%) /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}> 459,321 ( 0.58%) ???:llvm::StringMapImpl::LookupBucketFor(llvm::StringRef) 443,696 ( 0.56%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>::insert::>::{closure#0}> 415,741 ( 0.52%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/build_reduced_graph.rs:::build_reduced_graph_for_external_crate_res 387,810 ( 0.49%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/imports.rs:::try_define 367,734 ( 0.46%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>::reserve_rehash::>::{closure#0}> 354,254 ( 0.45%) ./malloc/malloc.c:free 328,969 ( 0.41%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_usize 291,132 ( 0.37%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs:>>::insert 290,566 ( 0.37%) ./malloc/malloc.c:malloc_consolidate 278,812 ( 0.35%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:>::decode 264,323 ( 0.33%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/source_map.rs:::new_imported_source_file 262,554 ( 0.33%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, &rustc_resolve::ModuleData)>>::insert::, rustc_data_structures::ptr_key::PtrKey, &rustc_resolve::ModuleData, core::hash::BuildHasherDefault>::{closure#0}> 252,960 ( 0.32%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/build_reduced_graph.rs:::define::<(rustc_hir::def::Res, rustc_middle::ty::Visibility, rustc_span::span_encoding::Span, rustc_span::hygiene::LocalExpnId)> 249,570 ( 0.31%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/iter/range.rs:>::decode 249,570 ( 0.31%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/cmp.rs:>::decode 249,570 ( 0.31%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/ptr/mod.rs:>::decode 231,530 ( 0.29%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/symbol.rs:::intern 230,620 ( 0.29%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs:<&str as core::hash::Hash>::hash:: 221,269 ( 0.28%) ./stdlib/cxa_finalize.c:__cxa_finalize 209,188 ( 0.26%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/span_encoding.rs:>::decode 203,864 ( 0.26%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:::intern 203,175 ( 0.26%) ./string/../sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S:__memcmp_avx2_movbe 203,082 ( 0.26%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs:>>::or_insert_with::<::resolution::{closure#0}> 196,434 ( 0.25%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:>::decode 196,251 ( 0.25%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, &rustc_resolve::ModuleData)>>::reserve_rehash::, rustc_data_structures::ptr_key::PtrKey, &rustc_resolve::ModuleData, core::hash::BuildHasherDefault>::{closure#0}> 187,081 ( 0.24%) ./malloc/malloc.c:unlink_chunk.constprop.0 185,640 ( 0.23%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:)>>::remove_entry::>::{closure#0}> 181,311 ( 0.23%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>>::insert 170,538 ( 0.21%) ./string/../sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S:__memset_avx2_erms 165,920 ( 0.21%) ???:llvm::StringMapImpl::RehashTable(unsigned int) 163,241 ( 0.21%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/lib.rs:::resolution 161,995 ( 0.20%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs:>::reserve_rehash::>::{closure#0}> 160,766 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_hir/src/def.rs: as rustc_serialize::serialize::Decodable>::decode 158,230 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u32 157,612 ( 0.20%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/indexmap-1.8.0/src/map/core/raw.rs:>>::entry 155,590 ( 0.20%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:::read_usize 152,084 ( 0.19%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/indexmap-1.8.0/src/map/core.rs:>>::or_insert_with::<::resolution::{closure#0}> 146,614 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/span_encoding.rs:::normalize_to_macros_2_0 144,352 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_usize 141,946 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/build_reduced_graph.rs:::resolutions 136,228 ( 0.17%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_hir/src/def.rs:>::decode 125,642 ( 0.16%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/macros.rs:::check_reserved_macro_name 118,419 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/symbol.rs:::normalize_to_macros_2_0 115,310 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/ops/bit.rs:<&str as core::hash::Hash>::hash:: 114,181 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/lib.rs:::resolutions 113,246 ( 0.14%) ./stdio-common/vfscanf-internal.c:__vfscanf_internal 111,600 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:>::decode 111,568 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/lazy.rs:>>::get_or_init::<::imported_source_files::{closure#3}> 110,609 ( 0.14%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/indexmap-1.8.0/src/map/core.rs:, alloc::vec::Vec>>::or_default 104,994 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/ptr/mod.rs:>>::or_insert_with::<::resolution::{closure#0}> 103,279 ( 0.13%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs:>>::entry 102,661 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/mod.rs:>::decode 100,827 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/library/std/src/path.rs:::hash:: 98,323 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u64 98,280 ( 0.12%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/rustc_entry.rs:, core::hash::BuildHasherDefault>>::rustc_entry 97,808 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/cmp.rs:>::decode 96,828 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/codec.rs:::read_u32 96,180 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:::read_u32 95,302 ( 0.12%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs:, alloc::vec::Vec>>::or_default 94,612 ( 0.12%) ???:llvm::PassRegistry::registerPass(llvm::PassInfo const&, bool) 94,118 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_parse/src/lexer/mod.rs:::next_token 93,528 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/library/std/src/thread/local.rs:rustc_span::SESSION_GLOBALS::FOO::__getit 93,381 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/table.rs:>, usize>>::get:: 93,066 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/lib.rs:::try_define 92,239 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/library/std/src/sys/unix/alloc.rs:__rdl_alloc 91,598 ( 0.12%) ???:(anonymous namespace)::CommandLineParser::addOption(llvm::cl::Option*, llvm::cl::SubCommand*) 89,685 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/cmp.rs:::hash:: 88,716 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/codec.rs:::read_u32 87,924 ( 0.11%) ???:std::pair, bool> llvm::StringMap::try_emplace(llvm::StringRef, llvm::cl::Option*&&) 87,808 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/hash/mod.rs:>::reserve_rehash::>::{closure#0}> 87,537 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:::opt_item_ident 85,328 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:>::decode 85,245 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:::read_usize 84,614 ( 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}> 84,435 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/span_encoding.rs:::resolution 83,047 ( 0.10%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.11.2/src/raw/mod.rs:>::reserve_rehash::, alloc::vec::Vec>::{closure#0}> 82,912 ( 0.10%) ./malloc/malloc.c:realloc 82,328 ( 0.10%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs:, &rustc_resolve::ModuleData, core::hash::BuildHasherDefault>>::insert -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/lazy.rs -------------------------------------------------------------------------------- Ir -- line 48 ---------------------------------------- . } . } . } . . #[unstable(feature = "once_cell", issue = "74465")] . impl Clone for OnceCell { . fn clone(&self) -> OnceCell { . let res = OnceCell::new(); 20 ( 0.00%) if let Some(value) = self.get() { . match res.set(value.clone()) { . Ok(()) => (), . Err(_) => unreachable!(), . } . } . res . } . } -- line 64 ---------------------------------------- -- line 80 ---------------------------------------- . } . } . . impl OnceCell { . /// Creates a new empty cell. . #[unstable(feature = "once_cell", issue = "74465")] . #[must_use] . pub const fn new() -> OnceCell { 5 ( 0.00%) OnceCell { inner: UnsafeCell::new(None) } . } . . /// Gets the reference to the underlying value. . /// . /// Returns `None` if the cell is empty. . #[unstable(feature = "once_cell", issue = "74465")] . pub fn get(&self) -> Option<&T> { . // SAFETY: Safe due to `inner`'s invariant -- line 96 ---------------------------------------- -- line 126 ---------------------------------------- . /// assert_eq!(cell.set(62), Err(62)); . /// . /// assert!(cell.get().is_some()); . /// ``` . #[unstable(feature = "once_cell", issue = "74465")] . pub fn set(&self, value: T) -> Result<(), T> { . // SAFETY: Safe because we cannot have overlapping mutable borrows . let slot = unsafe { &*self.inner.get() }; 16 ( 0.00%) if slot.is_some() { . return Err(value); . } . . // SAFETY: This is the only place where we set the slot, no races . // due to reentrancy/concurrency are possible, and we've . // checked that slot is currently `None`, so this write . // maintains the `inner`'s invariant. . let slot = unsafe { &mut *self.inner.get() }; 45 ( 0.00%) *slot = Some(value); 4 ( 0.00%) Ok(()) . } . . /// Gets the contents of the cell, initializing it with `f` . /// if the cell was empty. . /// . /// # Panics . /// . /// If `f` panics, the panic is propagated to the caller, and the cell -- line 152 ---------------------------------------- -- line 164 ---------------------------------------- . /// . /// let cell = OnceCell::new(); . /// let value = cell.get_or_init(|| 92); . /// assert_eq!(value, &92); . /// let value = cell.get_or_init(|| unreachable!()); . /// assert_eq!(value, &92); . /// ``` . #[unstable(feature = "once_cell", issue = "74465")] 41,905 ( 0.05%) pub fn get_or_init(&self, f: F) -> &T . where . F: FnOnce() -> T, . { 45 ( 0.00%) match self.get_or_try_init(|| Ok::(f())) { . Ok(val) => val, . } 55,861 ( 0.07%) } . . /// Gets the contents of the cell, initializing it with `f` if . /// the cell was empty. If the cell was empty and `f` failed, an . /// error is returned. . /// . /// # Panics . /// . /// If `f` panics, the panic is propagated to the caller, and the cell -- line 187 ---------------------------------------- -- line 206 ---------------------------------------- . /// assert_eq!(value, Ok(&92)); . /// assert_eq!(cell.get(), Some(&92)) . /// ``` . #[unstable(feature = "once_cell", issue = "74465")] . pub fn get_or_try_init(&self, f: F) -> Result<&T, E> . where . F: FnOnce() -> Result, . { 13,980 ( 0.02%) if let Some(val) = self.get() { . return Ok(val); . } . /// Avoid inlining the initialization closure into the common path that fetches . /// the already initialized value . #[cold] 58 ( 0.00%) fn outlined_call(f: F) -> Result . where . F: FnOnce() -> Result, . { 13 ( 0.00%) f() 52 ( 0.00%) } 45 ( 0.00%) let val = outlined_call(f)?; . // Note that *some* forms of reentrant initialization might lead to . // UB (see `reentrant_init` test). I believe that just removing this . // `assert`, while keeping `set/get` would be sound, but it seems . // better to panic, rather than to silently use an old value. 2 ( 0.00%) assert!(self.set(val).is_ok(), "reentrant init"); . Ok(self.get().unwrap()) . } . . /// Consumes the cell, returning the wrapped value. . /// . /// Returns `None` if the cell was empty. . /// . /// # Examples -- line 239 ---------------------------------------- 12 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/std/src/path.rs -------------------------------------------------------------------------------- Ir -- line 316 ---------------------------------------- . . //////////////////////////////////////////////////////////////////////////////// . // Cross-platform, iterator-independent parsing . //////////////////////////////////////////////////////////////////////////////// . . /// Says whether the first byte after the prefix is a separator. . fn has_physical_root(s: &[u8], prefix: Option>) -> bool { . let path = if let Some(p) = prefix { &s[p.len()..] } else { s }; 95 ( 0.00%) !path.is_empty() && is_sep_byte(path[0]) . } . . // basic workhorse for splitting stem and extension . fn rsplit_file_at_dot(file: &OsStr) -> (Option<&OsStr>, Option<&OsStr>) { . if os_str_as_u8_slice(file) == b".." { . return (Some(file), None); . } . . // The unsafety here stems from converting between &OsStr and &[u8] . // and back. This is safe to do because (1) we only look at ASCII . // contents of the encoding and (2) new &OsStr values are produced . // only from ASCII-bounded slices of existing &OsStr values. 63 ( 0.00%) let mut iter = os_str_as_u8_slice(file).rsplitn(2, |b| *b == b'.'); . let after = iter.next(); . let before = iter.next(); . if before == Some(b"") { . (Some(file), None) . } else { . unsafe { (before.map(|s| u8_slice_as_os_str(s)), after.map(|s| u8_slice_as_os_str(s))) } . } . } -- line 345 ---------------------------------------- -- line 368 ---------------------------------------- . //////////////////////////////////////////////////////////////////////////////// . . /// Component parsing works by a double-ended state machine; the cursors at the . /// front and back of the path each keep track of what parts of the path have . /// been consumed so far. . /// . /// Going front to back, a path is made up of a prefix, a starting . /// directory component, and a body (of normal components) 116 ( 0.00%) #[derive(Copy, Clone, PartialEq, PartialOrd, Debug)] . enum State { . Prefix = 0, // c: . StartDir = 1, // / or . or nothing . Body = 2, // foo/bar/baz . Done = 3, . } . . /// A structure wrapping a Windows path prefix as well as its unparsed string -- line 384 ---------------------------------------- -- line 493 ---------------------------------------- . /// let components = path.components().collect::>(); . /// assert_eq!(&components, &[ . /// Component::RootDir, . /// Component::Normal("tmp".as_ref()), . /// Component::Normal("foo".as_ref()), . /// Component::Normal("bar.txt".as_ref()), . /// ]); . /// ``` 2 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)] . #[stable(feature = "rust1", since = "1.0.0")] . pub enum Component<'a> { . /// A Windows path prefix, e.g., `C:` or `\\server\share`. . /// . /// There is a large variety of prefix types, see [`Prefix`]'s documentation . /// for more. . /// . /// Does not occur on Unix. -- line 509 ---------------------------------------- -- line 586 ---------------------------------------- . /// let path = Path::new("/tmp/foo/bar.txt"); . /// . /// for component in path.components() { . /// println!("{:?}", component); . /// } . /// ``` . /// . /// [`components`]: Path::components 72 ( 0.00%) #[derive(Clone)] . #[must_use = "iterators are lazy and do nothing unless consumed"] . #[stable(feature = "rust1", since = "1.0.0")] . pub struct Components<'a> { . // The path left to parse components from 12 ( 0.00%) path: &'a [u8], . . // The prefix as it was originally parsed, if any . prefix: Option>, . . // true if path *physically* has a root separator; for most Windows . // prefixes, it may have a "logical" root separator for the purposes of . // normalization, e.g., \\server\share == \\server\share\. . has_physical_root: bool, . . // The iterator is double-ended, and these two states keep track of what has . // been produced from either end 6 ( 0.00%) front: State, 6 ( 0.00%) back: State, . } . . /// An iterator over the [`Component`]s of a [`Path`], as [`OsStr`] slices. . /// . /// This `struct` is created by the [`iter`] method on [`Path`]. . /// See its documentation for more. . /// . /// [`iter`]: Path::iter -- line 620 ---------------------------------------- -- line 650 ---------------------------------------- . #[inline] . fn prefix_verbatim(&self) -> bool { . self.prefix.as_ref().map(Prefix::is_verbatim).unwrap_or(false) . } . . /// how much of the prefix is left from the point of view of iteration? . #[inline] . fn prefix_remaining(&self) -> usize { 101 ( 0.00%) if self.front == State::Prefix { self.prefix_len() } else { 0 } . } . . // Given the iteration so far, how much of the pre-State::Body path is left? . #[inline] 707 ( 0.00%) fn len_before_body(&self) -> usize { 404 ( 0.00%) let root = if self.front <= State::StartDir && self.has_physical_root { 1 } else { 0 }; 113 ( 0.00%) let cur_dir = if self.front <= State::StartDir && self.include_cur_dir() { 1 } else { 0 }; 404 ( 0.00%) self.prefix_remaining() + root + cur_dir 909 ( 0.00%) } . . // is the iteration complete? . #[inline] . fn finished(&self) -> bool { . self.front == State::Done || self.back == State::Done || self.front > self.back . } . . #[inline] -- line 675 ---------------------------------------- -- line 687 ---------------------------------------- . /// let mut components = Path::new("/tmp/foo/bar.txt").components(); . /// components.next(); . /// components.next(); . /// . /// assert_eq!(Path::new("foo/bar.txt"), components.as_path()); . /// ``` . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] 36 ( 0.00%) pub fn as_path(&self) -> &'a Path { . let mut comps = self.clone(); 6 ( 0.00%) if comps.front == State::Body { . comps.trim_left(); . } 6 ( 0.00%) if comps.back == State::Body { . comps.trim_right(); . } . unsafe { Path::from_u8_slice(comps.path) } 54 ( 0.00%) } . . /// Is the *original* path rooted? . fn has_root(&self) -> bool { 202 ( 0.00%) if self.has_physical_root { . return true; . } 15 ( 0.00%) if let Some(p) = self.prefix { . if p.has_implicit_root() { . return true; . } . } . false . } . . /// Should the normalized path include a leading . ? . fn include_cur_dir(&self) -> bool { 6 ( 0.00%) if self.has_root() { . return false; . } 11 ( 0.00%) let mut iter = self.path[self.prefix_len()..].iter(); 4 ( 0.00%) match (iter.next(), iter.next()) { . (Some(&b'.'), None) => true, . (Some(&b'.'), Some(&b)) => self.is_sep_byte(b), . _ => false, . } . } . . // parse a given byte sequence into the corresponding path component . fn parse_single_component<'b>(&self, comp: &'b [u8]) -> Option> { . match comp { 300 ( 0.00%) b"." if self.prefix_verbatim() => Some(Component::CurDir), . b"." => None, // . components are normalized away, except at . // the beginning of a path, which is treated . // separately via `include_cur_dir` . b".." => Some(Component::ParentDir), . b"" => None, . _ => Some(Component::Normal(unsafe { u8_slice_as_os_str(comp) })), . } . } -- line 743 ---------------------------------------- -- line 750 ---------------------------------------- . None => (0, self.path), . Some(i) => (1, &self.path[..i]), . }; . (comp.len() + extra, self.parse_single_component(comp)) . } . . // parse a component from the right, saying how many bytes to consume to . // remove the component 250 ( 0.00%) fn parse_next_component_back(&self) -> (usize, Option>) { . debug_assert!(self.back == State::Body); 100 ( 0.00%) let start = self.len_before_body(); 50 ( 0.00%) let (extra, comp) = match self.path[start..].iter().rposition(|b| self.is_sep_byte(*b)) { . None => (0, &self.path[start..]), 196 ( 0.00%) Some(i) => (1, &self.path[start + i + 1..]), . }; 300 ( 0.00%) (comp.len() + extra, self.parse_single_component(comp)) 200 ( 0.00%) } . . // trim away repeated separators (i.e., empty components) on the left . fn trim_left(&mut self) { . while !self.path.is_empty() { . let (size, comp) = self.parse_next_component(); . if comp.is_some() { . return; . } else { . self.path = &self.path[size..]; . } . } . } . . // trim away repeated separators (i.e., empty components) on the right . fn trim_right(&mut self) { 18 ( 0.00%) while self.path.len() > self.len_before_body() { 18 ( 0.00%) let (size, comp) = self.parse_next_component_back(); 6 ( 0.00%) if comp.is_some() { . return; . } else { . self.path = &self.path[..self.path.len() - size]; . } . } . } . } . -- line 792 ---------------------------------------- -- line 930 ---------------------------------------- . } . } . None . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a> DoubleEndedIterator for Components<'a> { 450 ( 0.00%) fn next_back(&mut self) -> Option> { 227 ( 0.00%) while !self.finished() { 100 ( 0.00%) match self.back { 225 ( 0.00%) State::Body if self.path.len() > self.len_before_body() => { 528 ( 0.00%) let (size, comp) = self.parse_next_component_back(); 176 ( 0.00%) self.path = &self.path[..self.path.len() - size]; 44 ( 0.00%) if comp.is_some() { 352 ( 0.00%) return comp; . } . } . State::Body => { 3 ( 0.00%) self.back = State::StartDir; . } . State::StartDir => { 2 ( 0.00%) self.back = State::Prefix; 45 ( 0.00%) if self.has_physical_root { . self.path = &self.path[..self.path.len() - 1]; . return Some(Component::RootDir); 12 ( 0.00%) } else if let Some(p) = self.prefix { . if p.has_implicit_root() && !p.is_verbatim() { . return Some(Component::RootDir); . } . } else if self.include_cur_dir() { . self.path = &self.path[..self.path.len() - 1]; . return Some(Component::CurDir); . } . } -- line 964 ---------------------------------------- -- line 965 ---------------------------------------- . State::Prefix if self.prefix_len() > 0 => { . self.back = State::Done; . return Some(Component::Prefix(PrefixComponent { . raw: unsafe { u8_slice_as_os_str(self.path) }, . parsed: self.prefix.unwrap(), . })); . } . State::Prefix => { 1 ( 0.00%) self.back = State::Done; . return None; . } . State::Done => unreachable!(), . } . } . None 405 ( 0.00%) } . } . . #[stable(feature = "fused", since = "1.26.0")] . impl FusedIterator for Components<'_> {} . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a> cmp::PartialEq for Components<'a> { . #[inline] . fn eq(&self, other: &Components<'a>) -> bool { . let Components { path: _, front: _, back: _, has_physical_root: _, prefix: _ } = self; . . // Fast path for exact matches, e.g. for hashmap lookups. . // Don't explicitly compare the prefix or has_physical_root fields since they'll . // either be covered by the `path` buffer or are only relevant for `prefix_verbatim()`. 8 ( 0.00%) if self.path.len() == other.path.len() 1 ( 0.00%) && self.front == other.front . && self.back == State::Body . && other.back == State::Body 1 ( 0.00%) && self.prefix_verbatim() == other.prefix_verbatim() . { . // possible future improvement: this could bail out earlier if there were a . // reverse memcmp/bcmp comparing back to front 3 ( 0.00%) if self.path == other.path { . return true; . } . } . . // compare back to front since absolute paths often share long prefixes 1 ( 0.00%) Iterator::eq(self.clone().rev(), other.clone().rev()) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl cmp::Eq for Components<'_> {} . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a> cmp::PartialOrd for Components<'a> { -- line 1017 ---------------------------------------- -- line 1179 ---------------------------------------- . /// use std::path::PathBuf; . /// . /// let path = PathBuf::new(); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use] . #[inline] . pub fn new() -> PathBuf { 36 ( 0.00%) PathBuf { inner: OsString::new() } . } . . /// Creates a new `PathBuf` with a given capacity used to create the . /// internal [`OsString`]. See [`with_capacity`] defined on [`OsString`]. . /// . /// # Examples . /// . /// ``` -- line 1195 ---------------------------------------- -- line 1260 ---------------------------------------- . /// use std::path::PathBuf; . /// . /// let mut path = PathBuf::from("/tmp"); . /// path.push("/etc"); . /// assert_eq!(path, PathBuf::from("/etc")); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . pub fn push>(&mut self, path: P) { 192 ( 0.00%) self._push(path.as_ref()) . } . 384 ( 0.00%) fn _push(&mut self, path: &Path) { . // in general, a separator is needed if the rightmost byte is not a separator . let mut need_sep = self.as_mut_vec().last().map(|c| !is_sep_byte(*c)).unwrap_or(false); . . // in the special case of `C:` on Windows, do *not* add a separator . let comps = self.components(); . . if comps.prefix_len() > 0 . && comps.prefix_len() == comps.path.len() -- line 1279 ---------------------------------------- -- line 1327 ---------------------------------------- . return; . . // `path` has a root but no prefix, e.g., `\windows` (Windows only) . } else if path.has_root() { . let prefix_len = self.components().prefix_remaining(); . self.as_mut_vec().truncate(prefix_len); . . // `path` is a pure relative path 47 ( 0.00%) } else if need_sep { . self.inner.push(MAIN_SEP_STR); . } . . self.inner.push(path); 288 ( 0.00%) } . . /// Truncates `self` to [`self.parent`]. . /// . /// Returns `false` and does nothing if [`self.parent`] is [`None`]. . /// Otherwise, returns `true`. . /// . /// [`self.parent`]: Path::parent . /// -- line 1348 ---------------------------------------- -- line 1354 ---------------------------------------- . /// let mut p = PathBuf::from("/spirited/away.rs"); . /// . /// p.pop(); . /// assert_eq!(Path::new("/spirited"), p); . /// p.pop(); . /// assert_eq!(Path::new("/"), p); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] 16 ( 0.00%) pub fn pop(&mut self) -> bool { 4 ( 0.00%) match self.parent().map(|p| p.as_u8_slice().len()) { . Some(len) => { . self.as_mut_vec().truncate(len); . true . } . None => false, . } 16 ( 0.00%) } . . /// Updates [`self.file_name`] to `file_name`. . /// . /// If [`self.file_name`] was [`None`], this is equivalent to pushing . /// `file_name`. . /// . /// Otherwise it is equivalent to calling [`pop`] and then pushing . /// `file_name`. The new path will be a sibling of the original path. -- line 1378 ---------------------------------------- -- line 1428 ---------------------------------------- . /// p.set_extension("force"); . /// assert_eq!(Path::new("/feel/the.force"), p.as_path()); . /// . /// p.set_extension("dark_side"); . /// assert_eq!(Path::new("/feel/the.dark_side"), p.as_path()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . pub fn set_extension>(&mut self, extension: S) -> bool { 12 ( 0.00%) self._set_extension(extension.as_ref()) . } . 30 ( 0.00%) fn _set_extension(&mut self, extension: &OsStr) -> bool { 24 ( 0.00%) let file_stem = match self.file_stem() { . None => return false, . Some(f) => os_str_as_u8_slice(f), . }; . . // truncate until right after the file stem . let end_file_stem = file_stem[file_stem.len()..].as_ptr() as usize; . let start = os_str_as_u8_slice(&self.inner).as_ptr() as usize; . let v = self.as_mut_vec(); . v.truncate(end_file_stem.wrapping_sub(start)); . . // add the new extension, if any . let new = os_str_as_u8_slice(extension); 3 ( 0.00%) if !new.is_empty() { 9 ( 0.00%) v.reserve_exact(new.len() + 1); . v.push(b'.'); . v.extend_from_slice(new); . } . . true 24 ( 0.00%) } . . /// Consumes the `PathBuf`, yielding its internal [`OsString`] storage. . /// . /// # Examples . /// . /// ``` . /// use std::path::PathBuf; . /// -- line 1468 ---------------------------------------- -- line 1558 ---------------------------------------- . self.inner.shrink_to(min_capacity) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Clone for PathBuf { . #[inline] . fn clone(&self) -> Self { 9 ( 0.00%) PathBuf { inner: self.inner.clone() } . } . . #[inline] . fn clone_from(&mut self, source: &Self) { . self.inner.clone_from(&source.inner) . } . } . -- line 1574 ---------------------------------------- -- line 1642 ---------------------------------------- . . #[stable(feature = "rust1", since = "1.0.0")] . impl From for PathBuf { . /// Converts an [`OsString`] into a [`PathBuf`] . /// . /// This conversion does not allocate or copy memory. . #[inline] . fn from(s: OsString) -> PathBuf { 150 ( 0.00%) PathBuf { inner: s } . } . } . . #[stable(feature = "from_path_buf_for_os_string", since = "1.14.0")] . impl From for OsString { . /// Converts a [`PathBuf`] into an [`OsString`] . /// . /// This conversion does not allocate or copy memory. -- line 1658 ---------------------------------------- -- line 1825 ---------------------------------------- . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl ToOwned for Path { . type Owned = PathBuf; . #[inline] . fn to_owned(&self) -> PathBuf { 7 ( 0.00%) self.to_path_buf() . } . #[inline] . fn clone_into(&self, target: &mut PathBuf) { . self.inner.clone_into(&mut target.inner); . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl cmp::PartialEq for PathBuf { . #[inline] 4 ( 0.00%) fn eq(&self, other: &PathBuf) -> bool { 4 ( 0.00%) self.components() == other.components() 4 ( 0.00%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for PathBuf { 35 ( 0.00%) fn hash(&self, h: &mut H) { . self.as_path().hash(h) 28 ( 0.00%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl cmp::Eq for PathBuf {} . . #[stable(feature = "rust1", since = "1.0.0")] . impl cmp::PartialOrd for PathBuf { . #[inline] -- line 1861 ---------------------------------------- -- line 1936 ---------------------------------------- . . impl Path { . // The following (private!) function allows construction of a path from a u8 . // slice, which is only safe when it is known to follow the OsStr encoding. . unsafe fn from_u8_slice(s: &[u8]) -> &Path { . unsafe { Path::new(u8_slice_as_os_str(s)) } . } . // The following (private!) function reveals the byte encoding used for OsStr. 676 ( 0.00%) fn as_u8_slice(&self) -> &[u8] { . os_str_as_u8_slice(&self.inner) 338 ( 0.00%) } . . /// Directly wraps a string slice as a `Path` slice. . /// . /// This is a cost-free conversion. . /// . /// # Examples . /// . /// ``` -- line 1954 ---------------------------------------- -- line 1964 ---------------------------------------- . /// . /// let string = String::from("foo.txt"); . /// let from_string = Path::new(&string); . /// let from_path = Path::new(&from_string); . /// assert_eq!(from_string, from_path); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . pub fn new + ?Sized>(s: &S) -> &Path { 4 ( 0.00%) unsafe { &*(s.as_ref() as *const OsStr as *const Path) } . } . . /// Yields the underlying [`OsStr`] slice. . /// . /// # Examples . /// . /// ``` . /// use std::path::Path; -- line 1980 ---------------------------------------- -- line 2050 ---------------------------------------- . /// . /// let path_buf = Path::new("foo.txt").to_path_buf(); . /// assert_eq!(path_buf, std::path::PathBuf::from("foo.txt")); . /// ``` . #[rustc_conversion_suggestion] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[stable(feature = "rust1", since = "1.0.0")] 48 ( 0.00%) pub fn to_path_buf(&self) -> PathBuf { . PathBuf::from(self.inner.to_os_string()) 42 ( 0.00%) } . . /// Returns `true` if the `Path` is absolute, i.e., if it is independent of . /// the current directory. . /// . /// * On Unix, a path is absolute if it starts with the root, so . /// `is_absolute` and [`has_root`] are equivalent. . /// . /// * On Windows, a path is absolute if it has a prefix and starts with the -- line 2068 ---------------------------------------- -- line 2082 ---------------------------------------- . #[allow(deprecated)] . pub fn is_absolute(&self) -> bool { . if cfg!(target_os = "redox") { . // FIXME: Allow Redox prefixes . self.has_root() || has_redox_scheme(self.as_u8_slice()) . } else { . self.has_root() && (cfg!(any(unix, target_os = "wasi")) || self.prefix().is_some()) . } 1 ( 0.00%) } . . /// Returns `true` if the `Path` is relative, i.e., not absolute. . /// . /// See [`is_absolute`]'s documentation for more details. . /// . /// # Examples . /// . /// ``` -- line 2098 ---------------------------------------- -- line 2150 ---------------------------------------- . /// assert_eq!(parent, Path::new("/foo")); . /// . /// let grand_parent = parent.parent().unwrap(); . /// assert_eq!(grand_parent, Path::new("/")); . /// assert_eq!(grand_parent.parent(), None); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use] 2 ( 0.00%) pub fn parent(&self) -> Option<&Path> { . let mut comps = self.components(); 6 ( 0.00%) let comp = comps.next_back(); 8 ( 0.00%) comp.and_then(|p| match p { . Component::Normal(_) | Component::CurDir | Component::ParentDir => { 10 ( 0.00%) Some(comps.as_path()) . } . _ => None, . }) 4 ( 0.00%) } . . /// Produces an iterator over `Path` and its ancestors. . /// . /// The iterator will yield the `Path` that is returned if the [`parent`] method is used zero . /// or more times. That means, the iterator will yield `&self`, `&self.parent().unwrap()`, . /// `&self.parent().unwrap().parent().unwrap()` and so on. If the [`parent`] method returns . /// [`None`], the iterator will do likewise. The iterator will always yield at least one value, . /// namely `&self`. -- line 2175 ---------------------------------------- -- line 2217 ---------------------------------------- . /// assert_eq!(Some(OsStr::new("foo.txt")), Path::new("tmp/foo.txt").file_name()); . /// assert_eq!(Some(OsStr::new("foo.txt")), Path::new("foo.txt/.").file_name()); . /// assert_eq!(Some(OsStr::new("foo.txt")), Path::new("foo.txt/.//").file_name()); . /// assert_eq!(None, Path::new("foo.txt/..").file_name()); . /// assert_eq!(None, Path::new("/").file_name()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use] 34 ( 0.00%) pub fn file_name(&self) -> Option<&OsStr> { 111 ( 0.00%) self.components().next_back().and_then(|p| match p { . Component::Normal(p) => Some(p), . _ => None, . }) 68 ( 0.00%) } . . /// Returns a path that, when joined onto `base`, yields `self`. . /// . /// # Errors . /// . /// If `base` is not a prefix of `self` (i.e., [`starts_with`] . /// returns `false`), returns [`Err`]. . /// -- line 2238 ---------------------------------------- -- line 2354 ---------------------------------------- . /// # See Also . /// This method is similar to [`Path::file_prefix`], which extracts the portion of the file name . /// before the *first* `.` . /// . /// [`Path::file_prefix`]: Path::file_prefix . /// . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use] 3 ( 0.00%) pub fn file_stem(&self) -> Option<&OsStr> { . self.file_name().map(rsplit_file_at_dot).and_then(|(before, after)| before.or(after)) 6 ( 0.00%) } . . /// Extracts the prefix of [`self.file_name`]. . /// . /// The prefix is: . /// . /// * [`None`], if there is no file name; . /// * The entire file name if there is no embedded `.`; . /// * The portion of the file name before the first non-beginning `.`; -- line 2372 ---------------------------------------- -- line 2431 ---------------------------------------- . /// ``` . /// use std::path::{Path, PathBuf}; . /// . /// assert_eq!(Path::new("/etc").join("passwd"), PathBuf::from("/etc/passwd")); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use] . pub fn join>(&self, path: P) -> PathBuf { 40 ( 0.00%) self._join(path.as_ref()) . } . 132 ( 0.00%) fn _join(&self, path: &Path) -> PathBuf { . let mut buf = self.to_path_buf(); . buf.push(path); . buf 99 ( 0.00%) } . . /// Creates an owned [`PathBuf`] like `self` but with the given file name. . /// . /// See [`PathBuf::set_file_name`] for more details. . /// . /// # Examples . /// . /// ``` -- line 2454 ---------------------------------------- -- line 2529 ---------------------------------------- . /// assert_eq!(components.next(), Some(Component::RootDir)); . /// assert_eq!(components.next(), Some(Component::Normal(OsStr::new("tmp")))); . /// assert_eq!(components.next(), Some(Component::Normal(OsStr::new("foo.txt")))); . /// assert_eq!(components.next(), None) . /// ``` . /// . /// [`CurDir`]: Component::CurDir . #[stable(feature = "rust1", since = "1.0.0")] 2 ( 0.00%) pub fn components(&self) -> Components<'_> { . let prefix = parse_prefix(self.as_os_str()); 311 ( 0.00%) Components { . path: self.as_u8_slice(), . prefix, 94 ( 0.00%) has_physical_root: has_physical_root(self.as_u8_slice(), prefix) . || has_redox_scheme(self.as_u8_slice()), . front: State::Prefix, . back: State::Body, . } 2 ( 0.00%) } . . /// Produces an iterator over the path's components viewed as [`OsStr`] . /// slices. . /// . /// For more information about the particulars of how the path is separated . /// into components, see [`components`]. . /// . /// [`components`]: Path::components -- line 2555 ---------------------------------------- -- line 2775 ---------------------------------------- . /// . /// When the goal is simply to read from (or write to) the source, the most . /// reliable way to test the source can be read (or written to) is to open . /// it. Only using `is_file` can break workflows like `diff <( prog_a )` on . /// a Unix-like system for example. See [`fs::File::open`] or . /// [`fs::OpenOptions::open`] for more information. . #[stable(feature = "path_ext", since = "1.5.0")] . #[must_use] 5 ( 0.00%) pub fn is_file(&self) -> bool { . fs::metadata(self).map(|m| m.is_file()).unwrap_or(false) 3 ( 0.00%) } . . /// Returns `true` if the path exists on disk and is pointing at a directory. . /// . /// This function will traverse symbolic links to query information about the . /// destination file. . /// . /// If you cannot access the metadata of the file, e.g. because of a . /// permission error or broken symbolic links, this will return `false`. -- line 2793 ---------------------------------------- -- line 2802 ---------------------------------------- . /// . /// # See Also . /// . /// This is a convenience function that coerces errors to false. If you want to . /// check errors, call [`fs::metadata`] and handle its [`Result`]. Then call . /// [`fs::Metadata::is_dir`] if it was [`Ok`]. . #[stable(feature = "path_ext", since = "1.5.0")] . #[must_use] 10 ( 0.00%) pub fn is_dir(&self) -> bool { . fs::metadata(self).map(|m| m.is_dir()).unwrap_or(false) 6 ( 0.00%) } . . /// Returns `true` if the path exists on disk and is pointing at a symbolic link. . /// . /// This function will not traverse symbolic links. . /// In case of a broken symbolic link this will also return true. . /// . /// If you cannot access the directory containing the file, e.g., because of a . /// permission error, this will return false. -- line 2820 ---------------------------------------- -- line 2898 ---------------------------------------- . impl fmt::Debug for Display<'_> { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . fmt::Debug::fmt(&self.path, f) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl fmt::Display for Display<'_> { 4 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 4 ( 0.00%) self.path.inner.display(f) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl cmp::PartialEq for Path { . #[inline] . fn eq(&self, other: &Path) -> bool { . self.components() == other.components() . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for Path { 2,648 ( 0.00%) fn hash(&self, h: &mut H) { 345 ( 0.00%) let bytes = self.as_u8_slice(); . let prefix_len = match parse_prefix(&self.inner) { . Some(prefix) => { . prefix.hash(h); . prefix.len() . } . None => 0, . }; . let bytes = &bytes[prefix_len..]; . . let mut component_start = 0; . let mut bytes_hashed = 0; . . for i in 0..bytes.len() { 34,511 ( 0.04%) if is_sep_byte(bytes[i]) { 12,054 ( 0.02%) if i > component_start { . let to_hash = &bytes[component_start..i]; 8 ( 0.00%) h.write(to_hash); 7,364 ( 0.01%) bytes_hashed += to_hash.len(); . } . . // skip over separator and optionally a following CurDir item . // since components() would normalize these away 16,531 ( 0.02%) component_start = i + match bytes[i..] { 8,036 ( 0.01%) [_, b'.', b'/', ..] | [_, b'.'] => 2, . _ => 1, . }; . } . } . 676 ( 0.00%) if component_start < bytes.len() { . let to_hash = &bytes[component_start..]; 3 ( 0.00%) h.write(to_hash); 676 ( 0.00%) bytes_hashed += to_hash.len(); . } . . h.write_usize(bytes_hashed); 2,600 ( 0.00%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl cmp::Eq for Path {} . . #[stable(feature = "rust1", since = "1.0.0")] . impl cmp::PartialOrd for Path { . #[inline] -- line 2967 ---------------------------------------- 19,903 ( 0.03%) -------------------------------------------------------------------------------- -- 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 { 60 ( 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) } . } 11,900 ( 0.01%) } . . 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) } 74,852 ( 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 { 60,140 ( 0.08%) let thread_local = (self.inner)().ok_or(AccessError)?; 35,109 ( 0.04%) 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 { 23,206 ( 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/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. 1,649 ( 0.00%) 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. 9,256 ( 0.01%) 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`. 4 ( 0.00%) self.end = unsafe { self.end.offset(-offset) }; . self.end . } . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl ExactSizeIterator for $name<'_, T> { . #[inline(always)] . fn len(&self) -> usize { 927 ( 0.00%) len!(self) . } . . #[inline(always)] . fn is_empty(&self) -> bool { . is_empty!(self) . } . } . -- line 128 ---------------------------------------- -- line 134 ---------------------------------------- . fn next(&mut self) -> Option<$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 { 1,194 ( 0.00%) assume(!self.ptr.as_ptr().is_null()); . if mem::size_of::() != 0 { 1,554 ( 0.00%) assume(!self.end.is_null()); . } 1,762,370 ( 2.21%) if is_empty!(self) { . None . } else { . Some(next_unchecked!(self)) . } . } . } . . #[inline] . fn size_hint(&self) -> (usize, Option) { 4,614 ( 0.01%) let exact = len!(self); . (exact, Some(exact)) . } . . #[inline] . fn count(self) -> usize { . len!(self) . } . . #[inline] . fn nth(&mut self, n: usize) -> Option<$elem> { 64 ( 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() { 23 ( 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, . { 30 ( 0.00%) while let Some(x) = self.next() { 1,098 ( 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] . fn any(&mut self, mut f: F) -> bool . where . Self: Sized, . F: FnMut(Self::Item) -> bool, . { 2,710 ( 0.00%) while let Some(x) = self.next() { 4,685 ( 0.01%) if f(x) { . return true; . } . } . false . } . . // 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, . { 219 ( 0.00%) while let Some(x) = self.next() { 2,043 ( 0.00%) if predicate(&x) { . return Some(x); . } . } . None 59 ( 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, . { 172 ( 0.00%) while let Some(x) = self.next() { 933 ( 0.00%) if let Some(y) = f(x) { 18 ( 0.00%) return Some(y); . } . } . None 80 ( 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() { 2,461 ( 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; 310 ( 0.00%) while let Some(x) = self.next_back() { 4,767 ( 0.01%) i -= 1; 4,600 ( 0.01%) 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` 138 ( 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 { 5 ( 0.00%) assume(!self.end.is_null()); . } 5,606 ( 0.01%) if is_empty!(self) { . None . } else { . Some(next_back_unchecked!(self)) . } . } . } . . #[inline] -- line 369 ---------------------------------------- 50,567 ( 0.06%) -------------------------------------------------------------------------------- -- 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 { 116,582 ( 0.15%) 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)); 5,880 ( 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::()); 412,745 ( 0.52%) 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" . ); . 12,126 ( 0.02%) self.stride += Group::WIDTH; 12,126 ( 0.02%) self.pos += self.stride; 9,973 ( 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. 2,432 ( 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. 4,550 ( 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. 1,836 ( 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 { 5,907 ( 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. 2,370 ( 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 = 5,412 ( 0.01%) size.checked_mul(buckets)?.checked_add(ctrl_align - 1)? & !(ctrl_align - 1); 6,905 ( 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 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 { 36 ( 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 { 140 ( 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")] 94 ( 0.00%) pub unsafe fn erase_no_drop(&mut self, item: &Bucket) { 94 ( 0.00%) let index = self.bucket_index(item); . self.table.erase(index); 188 ( 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. 14 ( 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 { 174 ( 0.00%) self.erase_no_drop(&item); 4 ( 0.00%) item.read() . } . . /// Finds and removes an element from the table, returning it. . #[cfg_attr(feature = "inline-more", inline)] 15,173 ( 0.02%) pub fn remove_entry(&mut self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option { . // Avoid `Option::map` because it bloats LLVM IR. . match self.find(hash, eq) { 47 ( 0.00%) Some(bucket) => Some(unsafe { self.remove(bucket) }), 1,776 ( 0.00%) None => None, . } 24,733 ( 0.03%) } . . /// 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) { 184 ( 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) { 12,295 ( 0.02%) if additional > self.table.growth_left { . // Avoid `Result::unwrap_or_else` because it bloats LLVM IR. 4,159 ( 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)] 9,854 ( 0.01%) 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 . }, . ) . } 5,800 ( 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)] 214,716 ( 0.27%) 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. 85 ( 0.00%) let old_ctrl = *self.table.ctrl(index); 110,212 ( 0.14%) 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 . } 156,911 ( 0.20%) } . . /// 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)] 20,032 ( 0.03%) pub fn insert_entry(&mut self, hash: u64, value: T, hasher: impl Fn(&T) -> u64) -> &mut T { 4 ( 0.00%) unsafe { self.insert(hash, value, hasher).as_mut() } 15,024 ( 0.02%) } . . /// 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"))] 10 ( 0.00%) pub unsafe fn insert_no_grow(&mut self, hash: u64, value: T) -> Bucket { 17,492 ( 0.02%) let (index, old_ctrl) = self.table.prepare_insert_slot(hash); 167 ( 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. 35,205 ( 0.04%) self.table.growth_left -= special_is_empty(old_ctrl) as usize; . . bucket.write(value); 29,028 ( 0.04%) self.table.items += 1; . bucket 15 ( 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] 32 ( 0.00%) pub fn find(&self, hash: u64, mut eq: impl FnMut(&T) -> bool) -> Option> { 24 ( 0.00%) let result = self.table.find_inner(hash, &mut |index| unsafe { 162 ( 0.00%) eq(self.bucket(index).as_ref()) . }); . . // Avoid `Option::map` because it bloats LLVM IR. . match result { . Some(index) => Some(unsafe { self.bucket(index) }), . None => None, . } 32 ( 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. 56 ( 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. 22 ( 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 { 18,592 ( 0.02%) 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()), 1,287 ( 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(); 188 ( 0.00%) let allocation = self.into_allocation(); 141 ( 0.00%) RawIntoIter { 235 ( 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)> { 65 ( 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(( 21 ( 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 { 5,984 ( 0.01%) 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)] 8,479 ( 0.01%) 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()); . } . 2,232 ( 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)); 5,376 ( 0.01%) Ok(Self { . ctrl, 2,114 ( 0.00%) bucket_mask: buckets - 1, . items: 0, . growth_left: bucket_mask_to_capacity(buckets - 1), . alloc, . }) 6,250 ( 0.01%) } . . #[inline] 1,044 ( 0.00%) fn fallible_with_capacity( . alloc: A, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result { 264 ( 0.00%) if capacity == 0 { 91 ( 0.00%) Ok(Self::new_in(alloc)) . } else { . unsafe { . let buckets = . capacity_to_buckets(capacity).ok_or_else(|| fallibility.capacity_overflow())?; . 4,007 ( 0.01%) let result = Self::new_uninitialized(alloc, table_layout, buckets, fallibility)?; . result.ctrl(0).write_bytes(EMPTY, result.num_ctrl_bytes()); . 678 ( 0.00%) Ok(result) . } . } 1,044 ( 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] 5,875 ( 0.01%) unsafe fn prepare_insert_slot(&self, hash: u64) -> (usize, u8) { . let index = self.find_insert_slot(hash); 5,875 ( 0.01%) let old_ctrl = *self.ctrl(index); . self.set_ctrl_h2(index, hash); . (index, old_ctrl) 11,750 ( 0.01%) } . . /// 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)); 74,471 ( 0.09%) if let Some(bit) = group.match_empty_or_deleted().lowest_set_bit() { 216,957 ( 0.27%) 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). 99,871 ( 0.13%) 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); . 540 ( 0.00%) loop { . let group = unsafe { Group::load(self.ctrl(probe_seq.pos)) }; . 77,604 ( 0.10%) for bit in group.match_byte(h2_hash) { 74,784 ( 0.09%) let index = (probe_seq.pos + bit) & self.bucket_mask; . 52,449 ( 0.07%) if likely(eq(index)) { . return Some(index); . } . } . 51,580 ( 0.06%) 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(); 304,056 ( 0.38%) 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 { 721,910 ( 0.91%) 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) { 137,765 ( 0.17%) self.growth_left -= special_is_empty(old_ctrl) as usize; . self.set_ctrl_h2(index, hash); 110,212 ( 0.14%) 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] | . // --------------------------------------------- 214,320 ( 0.27%) let index2 = ((index.wrapping_sub(Group::WIDTH)) & self.bucket_mask) + Group::WIDTH; . 71,440 ( 0.09%) *self.ctrl(index) = ctrl; 71,440 ( 0.09%) *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 { 4,678 ( 0.01%) self.bucket_mask + 1 . } . . #[inline] . fn num_ctrl_bytes(&self) -> usize { 4,687 ( 0.01%) self.bucket_mask + 1 + Group::WIDTH . } . . #[inline] . fn is_empty_singleton(&self) -> bool { 24,129 ( 0.03%) 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. 288 ( 0.00%) let mut new_table = RawTableInner::fallible_with_capacity( . self.alloc.clone(), . table_layout, . capacity, . fallibility, . )?; 2,557 ( 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_| { 1,199 ( 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. 2,398 ( 0.00%) let new_items = match self.items.checked_add(additional) { . Some(new_items) => new_items, . None => return Err(fallibility.capacity_overflow()), . }; 2,398 ( 0.00%) let full_capacity = bucket_mask_to_capacity(self.bucket_mask); 5,012 ( 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( 1,199 ( 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> { 712 ( 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() { 44,264 ( 0.06%) 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); . 1,199 ( 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( 681 ( 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) { 45 ( 0.00%) if !self.is_empty_singleton() { . unsafe { . self.ctrl(0).write_bytes(EMPTY, self.num_ctrl_bytes()); . } . } 59 ( 0.00%) self.items = 0; 45 ( 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))); 4,096 ( 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. 16,384 ( 0.02%) let ctrl = if empty_before.leading_zeros() + empty_after.trailing_zeros() >= Group::WIDTH { . DELETED . } else { 20,480 ( 0.03%) self.growth_left += 1; . EMPTY . }; . self.set_ctrl(index, ctrl); 16,384 ( 0.02%) self.items -= 1; . } . } . . impl Clone for RawTable { 112 ( 0.00%) fn clone(&self) -> Self { 14 ( 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) . } . } 126 ( 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)] 6,026 ( 0.01%) fn drop(&mut self) { 10,670 ( 0.01%) if !self.table.is_empty_singleton() { . unsafe { . self.drop_elements(); . self.free_buckets(); . } . } 6,262 ( 0.01%) } . } . #[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)] 188 ( 0.00%) fn into_iter(self) -> RawIntoIter { . unsafe { . let iter = self.iter(); . self.into_iter_from(iter) . } 235 ( 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 { 3,059 ( 0.00%) if let Some(index) = self.current_group.lowest_set_bit() { 234 ( 0.00%) self.current_group = self.current_group.remove_lowest_bit(); 421 ( 0.00%) return Some(self.data.next_n(index)); . } . 2,333 ( 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). 44 ( 0.00%) self.current_group = Group::load_aligned(self.next_ctrl).match_full(); 24 ( 0.00%) self.data = self.data.next_n(Group::WIDTH); 77 ( 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) { 66 ( 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)] 320 ( 0.00%) fn next(&mut self) -> Option> { 894 ( 0.00%) if let Some(b) = self.iter.next() { 3,906 ( 0.00%) 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 . } 640 ( 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)] 138 ( 0.00%) fn drop(&mut self) { . unsafe { . // Drop all remaining elements . self.iter.drop_elements(); . . // Free the table 292 ( 0.00%) if let Some((ptr, layout)) = self.allocation { . self.alloc.deallocate(ptr, layout); . } . } 42 ( 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)] 23 ( 0.00%) fn next(&mut self) -> Option { 15 ( 0.00%) unsafe { Some(self.iter.next()?.read()) } 46 ( 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)] 8 ( 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. 1 ( 0.00%) self.orig_table . .as_ptr() . .copy_from_nonoverlapping(&*self.table, 1); . } 8 ( 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 ---------------------------------------- 379,365 ( 0.48%) -------------------------------------------------------------------------------- -- 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 + '_ { 50,282 ( 0.06%) 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 { 2,998 ( 0.00%) 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 { 53 ( 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); . } . } . 27 ( 0.00%) pub(crate) fn drain(&mut self, range: R) -> Drain<'_, Bucket> . where . R: RangeBounds, . { 9 ( 0.00%) let range = simplify_range(range, self.entries.len()); . self.erase_indices(range.start, range.end); . self.entries.drain(range) 24 ( 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) { 695 ( 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 { 8,219 ( 0.01%) let i = self.entries.len(); . self.indices.insert(hash.get(), i, get_hash(&self.entries)); 16,455 ( 0.02%) if i == self.entries.capacity() { . // Reserve our own capacity synced to the indices, . // rather than letting `Vec::push` just double it. . self.reserve_entries(); . } 18,661 ( 0.02%) self.entries.push(Bucket { hash, key, value }); . i . } . . /// Return the index in `entries` where an equivalent key can be found 78 ( 0.00%) pub(crate) fn get_index_of(&self, hash: HashValue, key: &Q) -> Option . where . Q: ?Sized + Equivalent, . { 14 ( 0.00%) let eq = equivalent(key, &self.entries); . self.indices.get(hash.get(), eq).copied() 78 ( 0.00%) } . 65 ( 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))), 6 ( 0.00%) None => (self.push(hash, key, value), None), . } 59 ( 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 6 ( 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). 45,032 ( 0.06%) pub fn or_insert_with(self, call: F) -> &'a mut V . where . F: FnOnce() -> V, . { 11,258 ( 0.01%) match self { 103 ( 0.00%) Entry::Occupied(entry) => entry.into_mut(), 5,538 ( 0.01%) Entry::Vacant(entry) => entry.insert(call()), . } 45,032 ( 0.06%) } . . /// 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). 20,545 ( 0.03%) pub fn or_default(self) -> &'a mut V . where . V: Default, . { 5,870 ( 0.01%) match self { 276 ( 0.00%) Entry::Occupied(entry) => entry.into_mut(), 7,977 ( 0.01%) Entry::Vacant(entry) => entry.insert(V::default()), . } 23,480 ( 0.03%) } . } . . 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. 250 ( 0.00%) pub fn insert(self, value: V) -> &'a mut V { 8,083 ( 0.01%) let i = self.map.push(self.hash, self.key, value); 3 ( 0.00%) &mut self.map.entries[i].value 302 ( 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 ---------------------------------------- 45,860 ( 0.06%) -------------------------------------------------------------------------------- -- 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%) } . 989 ( 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 } 32,094 ( 0.04%) } . . /// 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. 3 ( 0.00%) pub fn from_str(string: &str) -> Ident { 3 ( 0.00%) Ident::with_dummy_span(Symbol::intern(string)) 12 ( 0.00%) } . . /// Maps a string and a span to an identifier. 4 ( 0.00%) pub fn from_str_and_span(string: &str, span: Span) -> Ident { 2 ( 0.00%) Ident::new(Symbol::intern(string), span) 4 ( 0.00%) } . . /// Replaces `lo` and `hi` with those from `span`, but keep hygiene context. 384 ( 0.00%) pub fn with_span_pos(self, span: Span) -> Ident { . Ident::new(self.name, span.with_ctxt(self.span.ctxt())) 240 ( 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. 50,751 ( 0.06%) pub fn normalize_to_macros_2_0(self) -> Ident { . Ident::new(self.name, self.span.normalize_to_macros_2_0()) 39,473 ( 0.05%) } . . /// "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. 279 ( 0.00%) pub fn normalize_to_macro_rules(self) -> Ident { . Ident::new(self.name, self.span.normalize_to_macro_rules()) 217 ( 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 { 7 ( 0.00%) self.name.as_str() . } . } . . impl PartialEq for Ident { 1,878 ( 0.00%) fn eq(&self, rhs: &Self) -> bool { 2,014 ( 0.00%) self.name == rhs.name && self.span.ctxt() == rhs.span.ctxt() 2,504 ( 0.00%) } . } . . impl Hash for Ident { . fn hash(&self, state: &mut H) { . self.name.hash(state); 151 ( 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) . } -- line 1596 ---------------------------------------- -- 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. 25 ( 0.00%) pub fn new(symbol: Symbol, is_raw: bool, convert_dollar_crate: Option) -> IdentPrinter { 124 ( 0.00%) IdentPrinter { symbol, is_raw, convert_dollar_crate } 25 ( 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. 12 ( 0.00%) pub fn for_ast_ident(ident: Ident, is_raw: bool) -> IdentPrinter { 12 ( 0.00%) IdentPrinter::new(ident.name, is_raw, Some(ident.span)) 6 ( 0.00%) } . } . . impl fmt::Display for IdentPrinter { 155 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 62 ( 0.00%) if self.is_raw { . f.write_str("r#")?; 31 ( 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)] 50 ( 0.00%) pub struct MacroRulesNormalizedIdent(Ident); . . impl MacroRulesNormalizedIdent { . pub fn new(ident: Ident) -> Self { 25 ( 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)] 1,577 ( 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)) . } . . /// Maps a string to its interned representation. 101,142 ( 0.13%) pub fn intern(string: &str) -> Self { . with_session_globals(|session_globals| session_globals.symbol_interner.intern(string)) 101,142 ( 0.13%) } . . /// 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. 1,617 ( 0.00%) pub fn as_str(&self) -> &str { 539 ( 0.00%) with_session_globals(|session_globals| unsafe { . std::mem::transmute::<&str, &str>(session_globals.symbol_interner.get(*self)) . }) 2,156 ( 0.00%) } . . 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 { 42 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 405 ( 0.00%) fmt::Display::fmt(self.as_str(), f) . } . } . . impl Encodable for Symbol { . fn encode(&self, s: &mut S) -> Result<(), S::Error> { 681 ( 0.00%) s.emit_str(self.as_str()) . } . } . . impl Decodable for Symbol { . #[inline] 11,426 ( 0.01%) fn decode(d: &mut D) -> Symbol { 25,479 ( 0.03%) Symbol::intern(&d.read_str()) . } . } . . impl HashStable for Symbol { . #[inline] 60 ( 0.00%) fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { 302 ( 0.00%) self.as_str().hash_stable(hcx, hasher); 54 ( 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(); 8,942 ( 0.01%) if let Some(&name) = inner.names.get(string) { . return name; . } . 6,767 ( 0.01%) 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 { 1,617 ( 0.00%) 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 1879 ---------------------------------------- . } . . impl Symbol { . fn is_special(self) -> bool { . self <= kw::Underscore . } . . fn is_used_keyword_always(self) -> bool { 75 ( 0.00%) self >= kw::As && self <= kw::While . } . . fn is_used_keyword_conditional(self, edition: impl FnOnce() -> Edition) -> bool { 1,182 ( 0.00%) (self >= kw::Async && self <= kw::Dyn) && edition() >= Edition::Edition2018 . } . . fn is_unused_keyword_always(self) -> bool { 75 ( 0.00%) self >= kw::Abstract && self <= kw::Yield . } . . fn is_unused_keyword_conditional(self, edition: impl FnOnce() -> Edition) -> bool { 25 ( 0.00%) self == kw::Try && edition() >= Edition::Edition2018 . } . . pub fn is_reserved(self, edition: impl Copy + FnOnce() -> Edition) -> bool { 2,070 ( 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 { 3,675 ( 0.00%) 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 { 100 ( 0.00%) self == kw::True || self == kw::False 100 ( 0.00%) } . . /// Returns `true` if this symbol can be a raw identifier. . pub fn can_be_raw(self) -> bool { 24 ( 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() 25 ( 0.00%) } . . /// Returns `true` if the token is a keyword used in the language. 25 ( 0.00%) pub fn is_used_keyword(self) -> bool { . // Note: `span.edition()` is relatively expensive, don't call it unless necessary. 25 ( 0.00%) self.name.is_used_keyword_always() . || self.name.is_used_keyword_conditional(|| self.span.edition()) 50 ( 0.00%) } . . /// Returns `true` if the token is a keyword reserved for possible future use. 25 ( 0.00%) pub fn is_unused_keyword(self) -> bool { . // Note: `span.edition()` is relatively expensive, don't call it unless necessary. 25 ( 0.00%) self.name.is_unused_keyword_always() . || self.name.is_unused_keyword_conditional(|| self.span.edition()) 50 ( 0.00%) } . . /// Returns `true` if the token is either a special identifier or a keyword. 402 ( 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()) 804 ( 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() 525 ( 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. 12 ( 0.00%) pub fn is_raw_guess(self) -> bool { . self.name.can_be_raw() && self.is_reserved() 24 ( 0.00%) } . } 22,596 ( 0.03%) -------------------------------------------------------------------------------- -- 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 { 941 ( 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); . /// ``` 6 ( 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, . { 372 ( 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, . { 84 ( 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 { 3,344 ( 0.00%) 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. 13,225 ( 0.02%) !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 { 24,920 ( 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 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 { 3,648 ( 0.00%) match compare(&v1, &v2) { . Ordering::Less | Ordering::Equal => v1, . Ordering::Greater => v2, . } . } . . /// Returns the element that gives the minimum value from the specified function. . /// . /// Returns the first argument if the comparison determines them to be equal. -- line 1226 ---------------------------------------- -- 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 { 8,673 ( 0.01%) match compare(&v1, &v2) { . 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 1289 ---------------------------------------- -- 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 $t { . #[inline] 139 ( 0.00%) fn eq(&self, other: &$t) -> bool { (*self) == (*other) } . #[inline] 12,149 ( 0.02%) 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] 503,524 ( 0.63%) fn lt(&self, other: &$t) -> bool { (*self) < (*other) } . #[inline] 400 ( 0.00%) fn le(&self, other: &$t) -> bool { (*self) <= (*other) } . #[inline] 4 ( 0.00%) 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. 86,403 ( 0.11%) 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. 46 ( 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 1475 ---------------------------------------- . . #[stable(feature = "rust1", since = "1.0.0")] . impl PartialEq<&B> for &A . where . A: PartialEq, . { . #[inline] . fn eq(&self, other: &&B) -> bool { 3,019 ( 0.00%) PartialEq::eq(*self, *other) 390 ( 0.00%) } . #[inline] . fn ne(&self, other: &&B) -> bool { 12 ( 0.00%) PartialEq::ne(*self, *other) 120 ( 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) 19 ( 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 ---------------------------------------- 35,699 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/macros.rs -------------------------------------------------------------------------------- Ir -- line 84 ---------------------------------------- . } . let sub_ns = |kind| match kind { . MacroKind::Bang => SubNS::Bang, . MacroKind::Attr | MacroKind::Derive => SubNS::AttrLike, . }; . let candidate = candidate.map(sub_ns); . let requirement = requirement.map(sub_ns); . // "No specific sub-namespace" means "matches anything" for both requirements and candidates. 106 ( 0.00%) candidate.is_none() || requirement.is_none() || candidate == requirement . } . . // We don't want to format a path using pretty-printing, . // `format!("{}", path)`, because that tries to insert . // line-breaks and is slow. 32 ( 0.00%) fn fast_print_path(path: &ast::Path) -> Symbol { 12 ( 0.00%) if path.segments.len() == 1 { 8 ( 0.00%) path.segments[0].ident.name . } else { . let mut path_str = String::with_capacity(64); . for (i, segment) in path.segments.iter().enumerate() { . if i != 0 { . path_str.push_str("::"); . } . if segment.ident.name != kw::PathRoot { . path_str.push_str(segment.ident.as_str()) . } . } . Symbol::intern(&path_str) . } 36 ( 0.00%) } . . /// The code common between processing `#![register_tool]` and `#![register_attr]`. 22 ( 0.00%) fn registered_idents( . sess: &Session, . attrs: &[ast::Attribute], . attr_name: Symbol, . descr: &str, . ) -> FxHashSet { . let mut registered = FxHashSet::default(); 2 ( 0.00%) for attr in sess.filter_by_name(attrs, attr_name) { . for nested_meta in attr.meta_item_list().unwrap_or_default() { . match nested_meta.ident() { . Some(ident) => { . if let Some(old_ident) = registered.replace(ident) { . let msg = format!("{} `{}` was already registered", descr, ident); . sess.struct_span_err(ident.span, &msg) . .span_label(old_ident.span, "already registered here") . .emit(); -- line 131 ---------------------------------------- -- line 135 ---------------------------------------- . let msg = format!("`{}` only accepts identifiers", attr_name); . let span = nested_meta.span(); . sess.struct_span_err(span, &msg).span_label(span, "not an identifier").emit(); . } . } . } . } . registered 16 ( 0.00%) } . 9 ( 0.00%) crate fn registered_attrs_and_tools( . sess: &Session, . attrs: &[ast::Attribute], . ) -> (FxHashSet, FxHashSet) { 5 ( 0.00%) let registered_attrs = registered_idents(sess, attrs, sym::register_attr, "attribute"); 8 ( 0.00%) let mut registered_tools = registered_idents(sess, attrs, sym::register_tool, "tool"); . // We implicitly add `rustfmt` and `clippy` to known tools, . // but it's not an error to register them explicitly. . let predefined_tools = [sym::clippy, sym::rustfmt]; . registered_tools.extend(predefined_tools.iter().cloned().map(Ident::with_dummy_span)); 8 ( 0.00%) (registered_attrs, registered_tools) 7 ( 0.00%) } . . // Some feature gates for inner attributes are reported as lints for backward compatibility. . fn soft_custom_inner_attributes_gate(path: &ast::Path, invoc: &Invocation) -> bool { . match &path.segments[..] { . // `#![test]` 20 ( 0.00%) [seg] if seg.ident.name == sym::test => return true, . // `#![rustfmt::skip]` on out-of-line modules . [seg1, seg2] if seg1.ident.name == sym::rustfmt && seg2.ident.name == sym::skip => { . if let InvocationKind::Attr { item, .. } = &invoc.kind { . if let Annotatable::Item(item) = item { . if let ItemKind::Mod(_, ModKind::Loaded(_, Inline::No, _)) = item.kind { . return true; . } . } -- line 170 ---------------------------------------- -- line 171 ---------------------------------------- . } . } . _ => {} . } . false . } . . impl<'a> ResolverExpand for Resolver<'a> { 227 ( 0.00%) fn next_node_id(&mut self) -> NodeId { . self.next_node_id() 454 ( 0.00%) } . . fn invocation_parent(&self, id: LocalExpnId) -> LocalDefId { . self.invocation_parents[&id].0 . } . . fn resolve_dollar_crates(&mut self) { 5 ( 0.00%) hygiene::update_dollar_crate_names(|ctxt| { . let ident = Ident::new(kw::DollarCrate, DUMMY_SP.with_ctxt(ctxt)); 63 ( 0.00%) match self.resolve_crate_root(ident).kind { . ModuleKind::Def(.., name) if name != kw::Empty => name, . _ => kw::Crate, . } . }); . } . 40 ( 0.00%) fn visit_ast_fragment_with_placeholders( . &mut self, . expansion: LocalExpnId, . fragment: &AstFragment, . ) { . // Integrate the new AST fragment into all the definition and module structures. . // We are inside the `expansion` now, but other parent scope components are still the same. 20 ( 0.00%) let parent_scope = ParentScope { expansion, ..self.invocation_parent_scopes[&expansion] }; . let output_macro_rules_scope = self.build_reduced_graph(fragment, parent_scope); . self.output_macro_rules_scopes.insert(expansion, output_macro_rules_scope); . . parent_scope.module.unexpanded_invocations.borrow_mut().remove(&expansion); 40 ( 0.00%) } . 308 ( 0.00%) fn register_builtin_macro(&mut self, name: Symbol, ext: SyntaxExtensionKind) { 264 ( 0.00%) if self.builtin_macros.insert(name, BuiltinMacroState::NotYetSeen(ext)).is_some() { . self.session . .diagnostic() . .bug(&format!("built-in macro `{}` was already registered", name)); . } 220 ( 0.00%) } . . // Create a new Expansion with a definition site of the provided module, or . // a fake empty `#[no_implicit_prelude]` module if no module is provided. 9 ( 0.00%) fn expansion_for_ast_pass( . &mut self, . call_site: Span, . pass: AstPass, . features: &[Symbol], . parent_module_id: Option, . ) -> LocalExpnId { . let parent_module = . parent_module_id.map(|module_id| self.local_def_id(module_id).to_def_id()); . let expn_id = LocalExpnId::fresh( 11 ( 0.00%) ExpnData::allow_unstable( . ExpnKind::AstPass(pass), . call_site, 7 ( 0.00%) self.session.edition(), . features.into(), . None, . parent_module, . ), . self.create_stable_hashing_context(), . ); . . let parent_scope = . parent_module.map_or(self.empty_module, |def_id| self.expect_module(def_id)); . self.ast_transform_scopes.insert(expn_id, parent_scope); . . expn_id 9 ( 0.00%) } . 2 ( 0.00%) fn resolve_imports(&mut self) { 6 ( 0.00%) ImportResolver { r: self }.resolve_imports() 4 ( 0.00%) } . 28 ( 0.00%) fn resolve_macro_invocation( . &mut self, . invoc: &Invocation, . eager_expansion_root: LocalExpnId, . force: bool, . ) -> Result, Indeterminate> { . let invoc_id = invoc.expansion_data.id; . let parent_scope = match self.invocation_parent_scopes.get(&invoc_id) { 12 ( 0.00%) Some(parent_scope) => *parent_scope, . None => { . // If there's no entry in the table, then we are resolving an eagerly expanded . // macro, which should inherit its parent scope from its eager expansion root - . // the macro that requested this eager expansion. . let parent_scope = *self . .invocation_parent_scopes . .get(&eager_expansion_root) . .expect("non-eager expansion without a parent scope"); . self.invocation_parent_scopes.insert(invoc_id, parent_scope); . parent_scope . } . }; . 28 ( 0.00%) let (path, kind, inner_attr, derives) = match invoc.kind { 1 ( 0.00%) InvocationKind::Attr { ref attr, ref derives, .. } => ( 2 ( 0.00%) &attr.get_normal_item().path, . MacroKind::Attr, . attr.style == ast::AttrStyle::Inner, 1 ( 0.00%) self.arenas.alloc_ast_paths(derives), . ), . InvocationKind::Bang { ref mac, .. } => (&mac.path, MacroKind::Bang, false, &[][..]), 24 ( 0.00%) InvocationKind::Derive { ref path, .. } => (path, MacroKind::Derive, false, &[][..]), . }; . . // Derives are not included when `invocations` are collected, so we have to add them here. 20 ( 0.00%) let parent_scope = &ParentScope { derives, ..parent_scope }; 12 ( 0.00%) let supports_macro_expansion = invoc.fragment_kind.supports_macro_expansion(); . let node_id = invoc.expansion_data.lint_node_id; 4 ( 0.00%) let (ext, res) = self.smart_resolve_macro_path( . path, . kind, . supports_macro_expansion, . inner_attr, . parent_scope, . node_id, . force, . soft_custom_inner_attributes_gate(path, invoc), . )?; . 8 ( 0.00%) let span = invoc.span(); . let def_id = res.opt_def_id(); . invoc_id.set_expn_data( 40 ( 0.00%) ext.expn_data( 8 ( 0.00%) parent_scope.expansion, . span, 4 ( 0.00%) fast_print_path(path), . def_id, 20 ( 0.00%) def_id.map(|def_id| self.macro_def_scope(def_id).nearest_parent_mod()), . ), . self.create_stable_hashing_context(), . ); . . Ok(ext) 32 ( 0.00%) } . 7 ( 0.00%) fn check_unused_macros(&mut self) { . for (_, &(node_id, ident)) in self.unused_macros.iter() { . self.lint_buffer.buffer_lint( . UNUSED_MACROS, . node_id, . ident.span, . &format!("unused macro definition: `{}`", ident.as_str()), . ); . } 8 ( 0.00%) } . 8 ( 0.00%) fn has_derive_copy(&self, expn_id: LocalExpnId) -> bool { . self.containers_deriving_copy.contains(&expn_id) 8 ( 0.00%) } . 11 ( 0.00%) fn resolve_derives( . &mut self, . expn_id: LocalExpnId, . force: bool, . derive_paths: &dyn Fn() -> DeriveResolutions, . ) -> Result<(), Indeterminate> { . // Block expansion of the container until we resolve all derives in it. . // This is required for two reasons: . // - Derive helper attributes are in scope for the item to which the `#[derive]` . // is applied, so they have to be produced by the container's expansion rather . // than by individual derives. . // - Derives in the container need to know whether one of them is a built-in `Copy`. . // Temporarily take the data to avoid borrow checker conflicts. . let mut derive_data = mem::take(&mut self.derive_data); . let entry = derive_data.entry(expn_id).or_insert_with(|| DeriveData { 2 ( 0.00%) resolutions: derive_paths(), . helper_attrs: Vec::new(), . has_derive_copy: false, . }); 7 ( 0.00%) let parent_scope = self.invocation_parent_scopes[&expn_id]; . for (i, (path, _, opt_ext)) in entry.resolutions.iter_mut().enumerate() { 3 ( 0.00%) if opt_ext.is_none() { 3 ( 0.00%) *opt_ext = Some( 45 ( 0.00%) match self.resolve_macro_path( . &path, . Some(MacroKind::Derive), . &parent_scope, . true, . force, . ) { 6 ( 0.00%) Ok((Some(ext), _)) => { 3 ( 0.00%) if !ext.helper_attrs.is_empty() { . let last_seg = path.segments.last().unwrap(); . let span = last_seg.ident.span.normalize_to_macros_2_0(); . entry.helper_attrs.extend( . ext.helper_attrs . .iter() . .map(|name| (i, Ident::new(*name, span))), . ); . } 18 ( 0.00%) entry.has_derive_copy |= ext.builtin_name == Some(sym::Copy); . ext . } . Ok(_) | Err(Determinacy::Determined) => self.dummy_ext(MacroKind::Derive), . Err(Determinacy::Undetermined) => { . assert!(self.derive_data.is_empty()); . self.derive_data = derive_data; . return Err(Indeterminate); . } . }, 21 ( 0.00%) ); . } . } . // Sort helpers in a stable way independent from the derive resolution order. . entry.helper_attrs.sort_by_key(|(i, _)| *i); . self.helper_attrs . .insert(expn_id, entry.helper_attrs.iter().map(|(_, ident)| *ident).collect()); . // Mark this derive as having `Copy` either if it has `Copy` itself or if its parent derive . // has `Copy`, to support cases like `#[derive(Clone, Copy)] #[derive(Debug)]`. 2 ( 0.00%) if entry.has_derive_copy || self.has_derive_copy(parent_scope.expansion) { . self.containers_deriving_copy.insert(expn_id); . } 1 ( 0.00%) assert!(self.derive_data.is_empty()); 9 ( 0.00%) self.derive_data = derive_data; . Ok(()) 8 ( 0.00%) } . 16 ( 0.00%) fn take_derive_resolutions(&mut self, expn_id: LocalExpnId) -> Option { . self.derive_data.remove(&expn_id).map(|data| data.resolutions) 16 ( 0.00%) } . . // The function that implements the resolution logic of `#[cfg_accessible(path)]`. . // Returns true if the path can certainly be resolved in one of three namespaces, . // returns false if the path certainly cannot be resolved in any of the three namespaces. . // Returns `Indeterminate` if we cannot give a certain answer yet. . fn cfg_accessible( . &mut self, . expn_id: LocalExpnId, -- line 409 ---------------------------------------- -- line 444 ---------------------------------------- . self.crate_loader.cstore().get_proc_macro_quoted_span_untracked(krate, id, self.session) . } . . fn declare_proc_macro(&mut self, id: NodeId) { . self.proc_macros.push(id) . } . . fn registered_tools(&self) -> &RegisteredTools { 2 ( 0.00%) &self.registered_tools 2 ( 0.00%) } . } . . impl<'a> Resolver<'a> { . /// Resolve macro path with error reporting and recovery. . /// Uses dummy syntax extensions for unresolved macros or macros with unexpected resolutions . /// for better error recovery. . fn smart_resolve_macro_path( . &mut self, -- line 461 ---------------------------------------- -- line 463 ---------------------------------------- . kind: MacroKind, . supports_macro_expansion: SupportsMacroExpansion, . inner_attr: bool, . parent_scope: &ParentScope<'a>, . node_id: NodeId, . force: bool, . soft_custom_inner_attributes_gate: bool, . ) -> Result<(Lrc, Res), Indeterminate> { 96 ( 0.00%) let (ext, res) = match self.resolve_macro_path(path, Some(kind), parent_scope, true, force) . { 24 ( 0.00%) Ok((Some(ext), res)) => (ext, res), . Ok((None, res)) => (self.dummy_ext(kind), res), . Err(Determinacy::Determined) => (self.dummy_ext(kind), Res::Err), . Err(Determinacy::Undetermined) => return Err(Indeterminate), . }; . . // Report errors for the resolved macro. . for segment in &path.segments { 27 ( 0.00%) if let Some(args) = &segment.args { . self.session.span_err(args.span(), "generic arguments in macro path"); . } 12 ( 0.00%) if kind == MacroKind::Attr && segment.ident.as_str().starts_with("rustc") { . self.session.span_err( . segment.ident.span, . "attributes starting with `rustc` are reserved for use by the `rustc` compiler", . ); . } . } . 44 ( 0.00%) match res { . Res::Def(DefKind::Macro(_), def_id) => { 4 ( 0.00%) if let Some(def_id) = def_id.as_local() { . self.unused_macros.remove(&def_id); . if self.proc_macro_stubs.contains(&def_id) { . self.session.span_err( . path.span, . "can't use a procedural macro from the same crate that defines it", . ); . } . } . } . Res::NonMacroAttr(..) | Res::Err => {} . _ => panic!("expected `DefKind::Macro` or `Res::NonMacroAttr`"), . }; . . self.check_stability_and_deprecation(&ext, path, node_id); . 12 ( 0.00%) let unexpected_res = if ext.macro_kind() != kind { . Some((kind.article(), kind.descr_expected())) 8 ( 0.00%) } else if matches!(res, Res::Def(..)) { 8 ( 0.00%) match supports_macro_expansion { . SupportsMacroExpansion::No => Some(("a", "non-macro attribute")), . SupportsMacroExpansion::Yes { supports_inner_attrs } => { 12 ( 0.00%) if inner_attr && !supports_inner_attrs { . Some(("a", "non-macro inner attribute")) . } else { . None . } . } . } . } else { . None -- line 524 ---------------------------------------- -- line 529 ---------------------------------------- . self.session . .struct_span_err(path.span, &msg) . .span_label(path.span, format!("not {} {}", article, expected)) . .emit(); . return Ok((self.dummy_ext(kind), Res::Err)); . } . . // We are trying to avoid reporting this error if other related errors were reported. 24 ( 0.00%) if res != Res::Err . && inner_attr . && !self.session.features_untracked().custom_inner_attributes . { . let msg = match res { . Res::Def(..) => "inner macro attributes are unstable", . Res::NonMacroAttr(..) => "custom inner attributes are unstable", . _ => unreachable!(), . }; -- line 545 ---------------------------------------- -- line 546 ---------------------------------------- . if soft_custom_inner_attributes_gate { . self.session.parse_sess.buffer_lint(SOFT_UNSTABLE, path.span, node_id, msg); . } else { . feature_err(&self.session.parse_sess, sym::custom_inner_attributes, path.span, msg) . .emit(); . } . } . 16 ( 0.00%) Ok((ext, res)) . } . 84 ( 0.00%) pub fn resolve_macro_path( . &mut self, . path: &ast::Path, . kind: Option, . parent_scope: &ParentScope<'a>, . trace: bool, . force: bool, . ) -> Result<(Option>, Res), Determinacy> { 7 ( 0.00%) let path_span = path.span; . let mut path = Segment::from_path(path); . . // Possibly apply the macro helper hack 21 ( 0.00%) if kind == Some(MacroKind::Bang) . && path.len() == 1 . && path[0].ident.span.ctxt().outer_expn_data().local_inner_macros . { . let root = Ident::new(kw::DollarCrate, path[0].ident.span); . path.insert(0, Segment::from_ident(root)); . } . 14 ( 0.00%) let res = if path.len() > 1 { . let res = match self.resolve_path( . &path, . Some(MacroNS), . parent_scope, . false, . path_span, . CrateLint::No, . ) { -- line 585 ---------------------------------------- -- line 603 ---------------------------------------- . res.ok(), . )); . } . . self.prohibit_imported_non_macro_attrs(None, res.ok(), path_span); . res . } else { . let scope_set = kind.map_or(ScopeSet::All(MacroNS, false), ScopeSet::Macro); 63 ( 0.00%) let binding = self.early_resolve_ident_in_lexical_scope( 28 ( 0.00%) path[0].ident, . scope_set, . parent_scope, . false, . force, . path_span, . ); 21 ( 0.00%) if let Err(Determinacy::Undetermined) = binding { . return Err(Determinacy::Undetermined); . } . 14 ( 0.00%) if trace { . let kind = kind.expect("macro kind must be specified if tracing is enabled"); 70 ( 0.00%) self.single_segment_macro_resolutions.push(( . path[0].ident, . kind, . *parent_scope, . binding.ok(), . )); . } . . let res = binding.map(|binding| binding.res()); 28 ( 0.00%) self.prohibit_imported_non_macro_attrs(binding.ok(), res.ok(), path_span); 35 ( 0.00%) res . }; . 28 ( 0.00%) res.map(|res| (self.get_macro(res), res)) 77 ( 0.00%) } . . // Resolve an identifier in lexical scope. . // This is a variation of `fn resolve_ident_in_lexical_scope` that can be run during . // expansion and import resolution (perhaps they can be merged in the future). . // The function is used for resolving initial segments of macro paths (e.g., `foo` in . // `foo::bar!(); or `foo!();`) and also for import paths on 2018 edition. 754 ( 0.00%) crate fn early_resolve_ident_in_lexical_scope( . &mut self, . orig_ident: Ident, . scope_set: ScopeSet<'a>, . parent_scope: &ParentScope<'a>, . record_used: bool, . force: bool, . path_span: Span, . ) -> Result<&'a NameBinding<'a>, Determinacy> { -- line 654 ---------------------------------------- -- line 657 ---------------------------------------- . const MACRO_RULES = 1 << 0; . const MODULE = 1 << 1; . const MISC_SUGGEST_CRATE = 1 << 2; . const MISC_SUGGEST_SELF = 1 << 3; . const MISC_FROM_PRELUDE = 1 << 4; . } . } . 162 ( 0.00%) assert!(force || !record_used); // `record_used` implies `force` . . // Make sure `self`, `super` etc produce an error when passed to here. 290 ( 0.00%) if orig_ident.is_path_segment_keyword() { . return Err(Determinacy::Determined); . } . 392 ( 0.00%) let (ns, macro_kind, is_import) = match scope_set { . ScopeSet::All(ns, is_import) => (ns, None, is_import), . ScopeSet::AbsolutePath(ns) => (ns, None, false), . ScopeSet::Macro(macro_kind) => (MacroNS, Some(macro_kind), false), . ScopeSet::Late(ns, ..) => (ns, None, false), . }; . . // This is *the* result, resolution from the scope closest to the resolved identifier. . // However, sometimes this result is "weak" because it comes from a glob import or -- line 680 ---------------------------------------- -- line 691 ---------------------------------------- . let mut determinacy = Determinacy::Determined; . . // Go through all the scopes and try to resolve the name. . let break_result = self.visit_scopes( . scope_set, . parent_scope, . orig_ident.span.ctxt(), . |this, scope, use_prelude, ctxt| { 524 ( 0.00%) let ident = Ident::new(orig_ident.name, orig_ident.span.with_ctxt(ctxt)); . let ok = |res, span, arenas| { . Ok(( . (res, ty::Visibility::Public, span, LocalExpnId::ROOT) . .to_name_binding(arenas), . Flags::empty(), . )) . }; 1,310 ( 0.00%) let result = match scope { . Scope::DeriveHelpers(expn_id) => { . if let Some(attr) = this . .helper_attrs . .get(&expn_id) . .and_then(|attrs| attrs.iter().rfind(|i| ident == **i)) . { . let binding = ( . Res::NonMacroAttr(NonMacroAttrKind::DeriveHelper), -- line 715 ---------------------------------------- -- line 720 ---------------------------------------- . .to_name_binding(this.arenas); . Ok((binding, Flags::empty())) . } else { . Err(Determinacy::Determined) . } . } . Scope::DeriveHelpersCompat => { . let mut result = Err(Determinacy::Determined); 27 ( 0.00%) for derive in parent_scope.derives { . let parent_scope = &ParentScope { derives: &[], ..*parent_scope }; . match this.resolve_macro_path( . derive, . Some(MacroKind::Derive), . parent_scope, . true, . force, . ) { -- line 736 ---------------------------------------- -- line 747 ---------------------------------------- . Ok(_) | Err(Determinacy::Determined) => {} . Err(Determinacy::Undetermined) => { . result = Err(Determinacy::Undetermined) . } . } . } . result . } 108 ( 0.00%) Scope::MacroRules(macro_rules_scope) => match macro_rules_scope.get() { . MacroRulesScope::Binding(macro_rules_binding) . if ident == macro_rules_binding.ident => . { . Ok((macro_rules_binding.binding, Flags::MACRO_RULES)) . } . MacroRulesScope::Invocation(_) => Err(Determinacy::Undetermined), . _ => Err(Determinacy::Determined), . }, -- line 763 ---------------------------------------- -- line 779 ---------------------------------------- . } . Err((Determinacy::Undetermined, Weak::Yes)) => { . Err(Determinacy::Undetermined) . } . Err((Determinacy::Determined, _)) => Err(Determinacy::Determined), . } . } . Scope::Module(module, derive_fallback_lint_id) => { 536 ( 0.00%) let adjusted_parent_scope = &ParentScope { module, ..*parent_scope }; 871 ( 0.00%) let binding = this.resolve_ident_in_module_unadjusted_ext( . ModuleOrUniformRoot::Module(module), . ident, . ns, . adjusted_parent_scope, . !matches!(scope_set, ScopeSet::Late(..)), . record_used, . path_span, . ); 317 ( 0.00%) match binding { . Ok(binding) => { 26 ( 0.00%) if let Some(lint_id) = derive_fallback_lint_id { . this.lint_buffer.buffer_lint_with_diagnostic( . PROC_MACRO_DERIVE_RESOLUTION_FALLBACK, . lint_id, . orig_ident.span, . &format!( . "cannot find {} `{}` in this scope", . ns.descr(), . ident . ), . BuiltinLintDiagnostics::ProcMacroDeriveResolutionFallback( . orig_ident.span, . ), . ); . } 13 ( 0.00%) let misc_flags = if ptr::eq(module, this.graph_root) { . Flags::MISC_SUGGEST_CRATE . } else if module.is_normal() { . Flags::MISC_SUGGEST_SELF . } else { . Flags::empty() . }; . Ok((binding, Flags::MODULE | misc_flags)) . } -- line 822 ---------------------------------------- -- line 833 ---------------------------------------- . Some(ident) => ok( . Res::NonMacroAttr(NonMacroAttrKind::Registered), . ident.span, . this.arenas, . ), . None => Err(Determinacy::Determined), . }, . Scope::MacroUsePrelude => { 4 ( 0.00%) match this.macro_use_prelude.get(&ident.name).cloned() { . Some(binding) => Ok((binding, Flags::MISC_FROM_PRELUDE)), . None => Err(Determinacy::determined( 25 ( 0.00%) this.graph_root.unexpanded_invocations.borrow().is_empty(), . )), . } . } . Scope::BuiltinAttrs => { 60 ( 0.00%) if is_builtin_attr_name(ident.name) { . ok( 26 ( 0.00%) Res::NonMacroAttr(NonMacroAttrKind::Builtin(ident.name)), . DUMMY_SP, 13 ( 0.00%) this.arenas, . ) . } else { . Err(Determinacy::Determined) . } . } 16 ( 0.00%) Scope::ExternPrelude => match this.extern_prelude_get(ident, !record_used) { . Some(binding) => Ok((binding, Flags::empty())), . None => Err(Determinacy::determined( 2 ( 0.00%) this.graph_root.unexpanded_invocations.borrow().is_empty(), . )), . }, . Scope::ToolPrelude => match this.registered_tools.get(&ident).cloned() { . Some(ident) => ok(Res::ToolMod, ident.span, this.arenas), . None => Err(Determinacy::Determined), . }, . Scope::StdLibPrelude => { . let mut result = Err(Determinacy::Determined); 129 ( 0.00%) if let Some(prelude) = this.prelude { . if let Ok(binding) = this.resolve_ident_in_module_unadjusted( . ModuleOrUniformRoot::Module(prelude), . ident, . ns, . parent_scope, . false, . path_span, . ) { 32 ( 0.00%) if use_prelude || this.is_builtin_macro(binding.res()) { . result = Ok((binding, Flags::MISC_FROM_PRELUDE)); . } . } . } . result . } 6 ( 0.00%) Scope::BuiltinTypes => match PrimTy::from_name(ident.name) { 2 ( 0.00%) Some(prim_ty) => ok(Res::PrimTy(prim_ty), DUMMY_SP, this.arenas), . None => Err(Determinacy::Determined), . }, . }; . 176 ( 0.00%) match result { . Ok((binding, flags)) 62 ( 0.00%) if sub_namespace_match(binding.macro_kind(), macro_kind) => . { 84 ( 0.00%) if !record_used || matches!(scope_set, ScopeSet::Late(..)) { . return Some(Ok(binding)); . } . 40 ( 0.00%) if let Some((innermost_binding, innermost_flags)) = innermost_result { . // Found another solution, if the first one was "weak", report an error. . let (res, innermost_res) = (binding.res(), innermost_binding.res()); . if res != innermost_res { . let is_builtin = |res| { . matches!(res, Res::NonMacroAttr(NonMacroAttrKind::Builtin(..))) . }; . let derive_helper = . Res::NonMacroAttr(NonMacroAttrKind::DeriveHelper); -- line 909 ---------------------------------------- -- line 977 ---------------------------------------- . }, . ); . . if let Some(break_result) = break_result { . return break_result; . } . . // The first found solution was the only one, return it. 68 ( 0.00%) if let Some((binding, _)) = innermost_result { . return Ok(binding); . } . 14 ( 0.00%) Err(Determinacy::determined(determinacy == Determinacy::Determined || force)) 754 ( 0.00%) } . 8 ( 0.00%) crate fn finalize_macro_resolutions(&mut self) { 56 ( 0.00%) let check_consistency = |this: &mut Self, . path: &[Segment], . span, . kind: MacroKind, . initial_res: Option, . res: Res| { 49 ( 0.00%) if let Some(initial_res) = initial_res { 21 ( 0.00%) if res != initial_res { . // Make sure compilation does not succeed if preferred macro resolution . // has changed after the macro had been expanded. In theory all such . // situations should be reported as errors, so this is a bug. . this.session.delay_span_bug(span, "inconsistent resolution for a macro"); . } . } else { . // It's possible that the macro was unresolved (indeterminate) and silently . // expanded into a dummy fragment for recovery during expansion. -- line 1008 ---------------------------------------- -- line 1016 ---------------------------------------- . "cannot determine resolution for the {} `{}`", . kind.descr(), . Segment::names_to_string(path) . ); . let msg_note = "import resolution is stuck, try simplifying macro imports"; . this.session.struct_span_err(span, &msg).note(msg_note).emit(); . } . } 49 ( 0.00%) }; . . let macro_resolutions = mem::take(&mut self.multi_segment_macro_resolutions); 4 ( 0.00%) for (mut path, path_span, kind, parent_scope, initial_res) in macro_resolutions { . // FIXME: Path resolution will ICE if segment IDs present. . for seg in &mut path { . seg.id = None; . } . match self.resolve_path( . &path, . Some(MacroNS), . &parent_scope, -- line 1035 ---------------------------------------- -- line 1059 ---------------------------------------- . ResolutionError::FailedToResolve { label, suggestion: None }, . ); . } . PathResult::Module(..) | PathResult::Indeterminate => unreachable!(), . } . } . . let macro_resolutions = mem::take(&mut self.single_segment_macro_resolutions); 91 ( 0.00%) for (ident, kind, parent_scope, initial_binding) in macro_resolutions { 112 ( 0.00%) match self.early_resolve_ident_in_lexical_scope( 7 ( 0.00%) ident, . ScopeSet::Macro(kind), . &parent_scope, . true, . true, 14 ( 0.00%) ident.span, . ) { . Ok(binding) => { . let initial_res = initial_binding.map(|initial_binding| { 49 ( 0.00%) self.record_use(ident, initial_binding, false); . initial_binding.res() . }); . let res = binding.res(); 14 ( 0.00%) let seg = Segment::from_ident(ident); 329 ( 0.00%) check_consistency(self, &[seg], ident.span, kind, initial_res, res); 35 ( 0.00%) if res == Res::NonMacroAttr(NonMacroAttrKind::DeriveHelperCompat) { . let node_id = self . .invocation_parents . .get(&parent_scope.expansion) . .map_or(ast::CRATE_NODE_ID, |id| self.def_id_to_node_id[id.0]); . self.lint_buffer.buffer_lint_with_diagnostic( . LEGACY_DERIVE_HELPERS, . node_id, . ident.span, -- line 1092 ---------------------------------------- -- line 1101 ---------------------------------------- . let mut err = self.session.struct_span_err(ident.span, &msg); . self.unresolved_macro_suggestions(&mut err, kind, &parent_scope, ident); . err.emit(); . } . } . } . . let builtin_attrs = mem::take(&mut self.builtin_attrs); 111 ( 0.00%) for (ident, parent_scope) in builtin_attrs { 130 ( 0.00%) let _ = self.early_resolve_ident_in_lexical_scope( . ident, . ScopeSet::Macro(MacroKind::Attr), . &parent_scope, . true, . true, 26 ( 0.00%) ident.span, . ); . } 8 ( 0.00%) } . . fn check_stability_and_deprecation( . &mut self, . ext: &SyntaxExtension, . path: &ast::Path, . node_id: NodeId, . ) { 4 ( 0.00%) let span = path.span; 12 ( 0.00%) if let Some(stability) = &ext.stability { 8 ( 0.00%) if let StabilityLevel::Unstable { reason, issue, is_soft } = stability.level { . let feature = stability.feature; . if !self.active_features.contains(&feature) && !span.allows_unstable(feature) { . let lint_buffer = &mut self.lint_buffer; . let soft_handler = . |lint, span, msg: &_| lint_buffer.buffer_lint(lint, node_id, span, msg); . stability::report_unstable( . self.session, . feature, -- line 1137 ---------------------------------------- -- line 1140 ---------------------------------------- . None, . is_soft, . span, . soft_handler, . ); . } . } . } 8 ( 0.00%) if let Some(depr) = &ext.deprecation { . let path = pprust::path_to_string(&path); . let (message, lint) = stability::deprecation_message_and_lint(depr, "macro", &path); . stability::early_report_deprecation( . &mut self.lint_buffer, . &message, . depr.suggestion, . lint, . span, . node_id, . ); . } . } . 49 ( 0.00%) fn prohibit_imported_non_macro_attrs( . &self, . binding: Option<&'a NameBinding<'a>>, . res: Option, . span: Span, . ) { 14 ( 0.00%) if let Some(Res::NonMacroAttr(kind)) = res { . if kind != NonMacroAttrKind::Tool && binding.map_or(true, |b| b.is_import()) { . let msg = . format!("cannot use {} {} through an import", kind.article(), kind.descr()); . let mut err = self.session.struct_span_err(span, &msg); . if let Some(binding) = binding { . err.span_note(binding.span, &format!("the {} imported here", kind.descr())); . } . err.emit(); . } . } 56 ( 0.00%) } . 60,082 ( 0.08%) crate fn check_reserved_macro_name(&mut self, ident: Ident, res: Res) { . // Reserve some names that are not quite covered by the general check . // performed on `Resolver::builtin_attrs`. 21,848 ( 0.03%) if ident.name == sym::cfg || ident.name == sym::cfg_attr { 6 ( 0.00%) let macro_kind = self.get_macro(res).map(|ext| ext.macro_kind()); 2 ( 0.00%) if macro_kind.is_some() && sub_namespace_match(macro_kind, Some(MacroKind::Attr)) { . self.session.span_err( . ident.span, . &format!("name `{}` is reserved in attribute namespace", ident), . ); . } . } 43,696 ( 0.05%) } . . /// Compile the macro into a `SyntaxExtension` and possibly replace . /// its expander to a pre-defined one for built-in macros. 40 ( 0.00%) crate fn compile_macro(&mut self, item: &ast::Item, edition: Edition) -> SyntaxExtension { 15 ( 0.00%) let mut result = compile_declarative_macro( 5 ( 0.00%) &self.session, . self.session.features_untracked(), . item, . edition, . ); . 20 ( 0.00%) if let Some(builtin_name) = result.builtin_name { . // The macro was marked with `#[rustc_builtin_macro]`. 10 ( 0.00%) if let Some(builtin_macro) = self.builtin_macros.get_mut(&builtin_name) { . // The macro is a built-in, replace its expander function . // while still taking everything else from the source code. . // If we already loaded this builtin macro, give a better error message than 'no such builtin macro'. 15 ( 0.00%) match mem::replace(builtin_macro, BuiltinMacroState::AlreadySeen(item.span)) { 60 ( 0.00%) BuiltinMacroState::NotYetSeen(ext) => result.kind = ext, . BuiltinMacroState::AlreadySeen(span) => { . struct_span_err!( . self.session, . item.span, . E0773, . "attempted to define built-in macro more than once" . ) . .span_note(span, "previously defined here") -- line 1220 ---------------------------------------- -- line 1223 ---------------------------------------- . } . } else { . let msg = format!("cannot find a built-in macro with name `{}`", item.ident); . self.session.span_err(item.span, &msg); . } . } . . result 45 ( 0.00%) } . } 3,150 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/ops/bit.rs -------------------------------------------------------------------------------- Ir -- line 267 ---------------------------------------- . macro_rules! bitor_impl { . ($($t:ty)*) => ($( . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_unstable(feature = "const_ops", issue = "90080")] . impl const BitOr for $t { . type Output = $t; . . #[inline] 3 ( 0.00%) fn bitor(self, rhs: $t) -> $t { self | rhs } . } . . forward_ref_binop! { impl const BitOr, bitor for $t, $t } . )*) . } . . bitor_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 } . -- line 283 ---------------------------------------- -- line 368 ---------------------------------------- . macro_rules! bitxor_impl { . ($($t:ty)*) => ($( . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_unstable(feature = "const_ops", issue = "90080")] . impl const BitXor for $t { . type Output = $t; . . #[inline] 174,527 ( 0.22%) fn bitxor(self, other: $t) -> $t { self ^ other } . } . . forward_ref_binop! { impl const BitXor, bitxor for $t, $t } . )*) . } . . bitxor_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 } . -- line 384 ---------------------------------------- 13,637 ( 0.02%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/table.rs -------------------------------------------------------------------------------- Ir -- line 38 ---------------------------------------- . ($byte_len:expr) => { . const BYTE_LEN: usize = $byte_len; . fn maybe_read_from_bytes_at(b: &[u8], i: usize) -> Option { . const BYTE_LEN: usize = $byte_len; . // HACK(eddyb) ideally this would be done with fully safe code, . // but slicing `[u8]` with `i * N..` is optimized worse, due to the . // possibility of `i * N` overflowing, than indexing `[[u8; N]]`. . let b = unsafe { 9,940 ( 0.01%) std::slice::from_raw_parts(b.as_ptr() as *const [u8; BYTE_LEN], b.len() / BYTE_LEN) . }; . b.get(i).map(|b| FixedSizeEncoding::from_bytes(b)) . } . fn write_to_bytes_at(self, b: &mut [u8], i: usize) { . const BYTE_LEN: usize = $byte_len; . // HACK(eddyb) ideally this would be done with fully safe code, . // see similar comment in `read_from_bytes_at` for why it can't yet. . let b = unsafe { . std::slice::from_raw_parts_mut( . b.as_mut_ptr() as *mut [u8; BYTE_LEN], 249 ( 0.00%) b.len() / BYTE_LEN, . ) . }; 498 ( 0.00%) self.write_to_bytes(&mut b[i]); . } . }; . } . . impl FixedSizeEncoding for u32 { . fixed_size_encoding_byte_len_and_defaults!(4); . . fn from_bytes(b: &[u8]) -> Self { -- line 68 ---------------------------------------- -- line 78 ---------------------------------------- . . // NOTE(eddyb) there could be an impl for `usize`, which would enable a more . // generic `Lazy` impl, but in the general case we might not need / want to . // fit every `usize` in `u32`. . impl FixedSizeEncoding for Option> { . fixed_size_encoding_byte_len_and_defaults!(u32::BYTE_LEN); . . fn from_bytes(b: &[u8]) -> Self { 297 ( 0.00%) Some(Lazy::from_position(NonZeroUsize::new(u32::from_bytes(b) as usize)?)) . } . . fn write_to_bytes(self, b: &mut [u8]) { . let position = self.map_or(0, |lazy| lazy.position.get()); . let position: u32 = position.try_into().unwrap(); . . position.write_to_bytes(b) . } -- line 94 ---------------------------------------- -- line 143 ---------------------------------------- . _marker: PhantomData<(fn(&I), T)>, . } . . impl Default for TableBuilder . where . Option: FixedSizeEncoding, . { . fn default() -> Self { 3 ( 0.00%) TableBuilder { bytes: vec![], _marker: PhantomData } . } . } . . impl TableBuilder . where . Option: FixedSizeEncoding, . { 1,632 ( 0.00%) pub(crate) fn set(&mut self, i: I, value: T) { . // FIXME(eddyb) investigate more compact encodings for sparse tables. . // On the PR @michaelwoerister mentioned: . // > Space requirements could perhaps be optimized by using the HAMT `popcnt` . // > trick (i.e. divide things into buckets of 32 or 64 items and then . // > store bit-masks of which item in each bucket is actually serialized). . let i = i.index(); 282 ( 0.00%) let needed = (i + 1) * >::BYTE_LEN; 790 ( 0.00%) if self.bytes.len() < needed { . self.bytes.resize(needed, 0); . } . . Some(value).write_to_bytes_at(&mut self.bytes, i); 1,404 ( 0.00%) } . . pub(crate) fn encode(&self, buf: &mut Encoder) -> Lazy> { . let pos = buf.position(); . buf.emit_raw_bytes(&self.bytes).unwrap(); . Lazy::from_position_and_meta(NonZeroUsize::new(pos as usize).unwrap(), self.bytes.len()) . } . } . -- line 180 ---------------------------------------- -- line 186 ---------------------------------------- . } . . impl Lazy> . where . Option: FixedSizeEncoding, . { . /// Given the metadata, extract out the value at a particular index (if any). . #[inline(never)] 9,639 ( 0.01%) pub(super) fn get<'a, 'tcx, M: Metadata<'a, 'tcx>>(&self, metadata: M, i: I) -> Option { . debug!("Table::lookup: index={:?} len={:?}", i, self.meta); . 19,278 ( 0.02%) let start = self.position.get(); 19,278 ( 0.02%) let bytes = &metadata.blob()[start..start + self.meta]; . >::maybe_read_from_bytes_at(bytes, i.index())? 19,278 ( 0.02%) } . . /// Size of the table in entries, including possible gaps. . pub(super) fn size(&self) -> usize { . self.meta / >::BYTE_LEN . } . } 19,716 ( 0.02%) -------------------------------------------------------------------------------- -- 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. 2,977 ( 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 { 404,449 ( 0.51%) 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 { 5,022 ( 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) { 8,626 ( 0.01%) 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 { 65 ( 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 { 57 ( 0.00%) if self.is_empty() { . return None; . } . let is_iterating = self.start < self.end; 36 ( 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; . 99 ( 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; . 9 ( 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) { 104 ( 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 ---------------------------------------- 44,514 ( 0.06%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_hir/src/def.rs -------------------------------------------------------------------------------- Ir -- line 6 ---------------------------------------- . use rustc_macros::HashStable_Generic; . use rustc_span::hygiene::MacroKind; . use rustc_span::Symbol; . . use std::array::IntoIter; . use std::fmt::Debug; . . /// Encodes if a `DefKind::Ctor` is the constructor of an enum variant or a struct. 18 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, Encodable, Decodable, Hash, Debug)] 12 ( 0.00%) #[derive(HashStable_Generic)] . pub enum CtorOf { . /// This `DefKind::Ctor` is a synthesized constructor of a tuple or unit struct. . Struct, . /// This `DefKind::Ctor` is a synthesized constructor of a tuple or unit variant. . Variant, . } . . /// What kind of constructor something is. 1,951 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, Encodable, Decodable, Hash, Debug)] 12 ( 0.00%) #[derive(HashStable_Generic)] . pub enum CtorKind { . /// Constructor function automatically created by a tuple struct/variant. . Fn, . /// Constructor constant automatically created by a unit struct/variant. . Const, . /// Unusable name in value namespace created by a struct variant. . Fictive, . } -- line 33 ---------------------------------------- -- line 45 ---------------------------------------- . /// Single-segment custom attribute registered by a derive macro . /// but used before that derive macro was expanded (deprecated). . DeriveHelperCompat, . /// Single-segment custom attribute registered with `#[register_attr]`. . Registered, . } . . /// What kind of definition something is; e.g., `mod` vs `struct`. 97,538 ( 0.12%) #[derive(Clone, Copy, PartialEq, Eq, Encodable, Decodable, Hash, Debug)] . #[derive(HashStable_Generic)] . pub enum DefKind { . // Type namespace . Mod, . /// Refers to the struct itself, [`DefKind::Ctor`] refers to its constructor if it exists. . Struct, . Union, . Enum, -- line 61 ---------------------------------------- -- line 116 ---------------------------------------- . /// A use of `global_asm!`. . GlobalAsm, . Impl, . Closure, . Generator, . } . . impl DefKind { 12 ( 0.00%) pub fn descr(self, def_id: DefId) -> &'static str { 15 ( 0.00%) match self { . DefKind::Fn => "function", . DefKind::Mod if def_id.index == CRATE_DEF_INDEX && def_id.krate != LOCAL_CRATE => { . "crate" . } . DefKind::Mod => "module", . DefKind::Static => "static", . DefKind::Enum => "enum", . DefKind::Variant => "variant", -- line 133 ---------------------------------------- -- line 160 ---------------------------------------- . DefKind::InlineConst => "inline constant", . DefKind::Field => "field", . DefKind::Impl => "implementation", . DefKind::Closure => "closure", . DefKind::Generator => "generator", . DefKind::ExternCrate => "extern crate", . DefKind::GlobalAsm => "global assembly block", . } 6 ( 0.00%) } . . /// Gets an English article for the definition. 3 ( 0.00%) pub fn article(&self) -> &'static str { 15 ( 0.00%) match *self { . DefKind::AssocTy . | DefKind::AssocConst . | DefKind::AssocFn . | DefKind::Enum . | DefKind::OpaqueTy . | DefKind::Impl . | DefKind::Use . | DefKind::InlineConst . | DefKind::ExternCrate => "an", . DefKind::Macro(macro_kind) => macro_kind.article(), . _ => "a", . } 6 ( 0.00%) } . . pub fn ns(&self) -> Option { . match self { . DefKind::Mod . | DefKind::Struct . | DefKind::Union . | DefKind::Enum . | DefKind::Variant -- line 193 ---------------------------------------- -- line 248 ---------------------------------------- . /// - `String` will resolve to [`Res::Def`], and the `Res` will include the [`DefId`] . /// for `String` as defined in the standard library; . /// - `String::from` will also resolve to [`Res::Def`], with the [`DefId`] . /// pointing to `String::from`; . /// - `s` will resolve to [`Res::Local`]; . /// - the call to `str_to_string` will resolve to [`Res::Def`], with the [`DefId`] . /// pointing to the definition of `str_to_string` in the current crate. . // 130,098 ( 0.16%) #[derive(Clone, Copy, PartialEq, Eq, Encodable, Decodable, Hash, Debug)] 2,337 ( 0.00%) #[derive(HashStable_Generic)] . pub enum Res { . /// Definition having a unique ID (`DefId`), corresponds to something defined in user code. . /// . /// **Not bound to a specific namespace.** 14 ( 0.00%) Def(DefKind, DefId), . . // Type namespace . /// A primitive type such as `i32` or `str`. . /// . /// **Belongs to the type namespace.** . PrimTy(hir::PrimTy), . /// The `Self` type, optionally with the trait it is associated with . /// and optionally with the [`DefId`] of the impl it is associated with. -- line 270 ---------------------------------------- -- line 338 ---------------------------------------- . Local(Id), . . // Macro namespace . /// An attribute that is *not* implemented via macro. . /// E.g., `#[inline]` and `#[rustfmt::skip]`, which are essentially directives, . /// as opposed to `#[test]`, which is a builtin macro. . /// . /// **Belongs to the macro namespace.** 14 ( 0.00%) NonMacroAttr(NonMacroAttrKind), // e.g., `#[inline]` or `#[rustfmt::skip]` . . // All namespaces . /// Name resolution failed. We use a dummy `Res` variant so later phases . /// of the compiler won't crash and can instead report more errors. . /// . /// **Not bound to a specific namespace.** . Err, . } -- line 354 ---------------------------------------- -- line 364 ---------------------------------------- . /// module::Type::AssocX::AssocY::MethodOrAssocType . /// ^~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ . /// base_res unresolved_segments = 3 . /// . /// ::AssocX::AssocY::MethodOrAssocType . /// ^~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~ . /// base_res unresolved_segments = 2 . /// ``` 332 ( 0.00%) #[derive(Copy, Clone, Debug)] . pub struct PartialRes { . base_res: Res, . unresolved_segments: usize, . } . . impl PartialRes { . #[inline] . pub fn new(base_res: Res) -> Self { 50 ( 0.00%) PartialRes { base_res, unresolved_segments: 0 } . } . . #[inline] . pub fn with_unresolved_segments(base_res: Res, mut unresolved_segments: usize) -> Self { 156 ( 0.00%) if base_res == Res::Err { . unresolved_segments = 0 . } 72 ( 0.00%) PartialRes { base_res, unresolved_segments } . } . . #[inline] . pub fn base_res(&self) -> Res { 902 ( 0.00%) self.base_res . } . . #[inline] . pub fn unresolved_segments(&self) -> usize { . self.unresolved_segments . } . } . . /// Different kinds of symbols can coexist even if they share the same textual name. . /// Therefore, they each have a separate universe (known as a "namespace"). 790 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)] . pub enum Namespace { . /// The type namespace includes `struct`s, `enum`s, `union`s, `trait`s, and `mod`s . /// (and, by extension, crates). . /// . /// Note that the type namespace includes other items; this is not an . /// exhaustive list. . TypeNS, . /// The value namespace includes `fn`s, `const`s, `static`s, and local variables (including function arguments). -- line 413 ---------------------------------------- -- line 450 ---------------------------------------- . [&self.value_ns, &self.type_ns, &self.macro_ns].into_iter() . } . } . . impl ::std::ops::Index for PerNS { . type Output = T; . . fn index(&self, ns: Namespace) -> &T { 112 ( 0.00%) match ns { . Namespace::ValueNS => &self.value_ns, 18 ( 0.00%) Namespace::TypeNS => &self.type_ns, . Namespace::MacroNS => &self.macro_ns, . } . } . } . . impl ::std::ops::IndexMut for PerNS { . fn index_mut(&mut self, ns: Namespace) -> &mut T { . match ns { 3 ( 0.00%) Namespace::ValueNS => &mut self.value_ns, 7 ( 0.00%) Namespace::TypeNS => &mut self.type_ns, . Namespace::MacroNS => &mut self.macro_ns, . } . } . } . . impl PerNS> { . /// Returns `true` if all the items in this collection are `None`. . pub fn is_empty(&self) -> bool { -- line 478 ---------------------------------------- -- line 482 ---------------------------------------- . /// Returns an iterator over the items which are `Some`. . pub fn present_items(self) -> impl Iterator { . [self.type_ns, self.value_ns, self.macro_ns].into_iter().flatten() . } . } . . impl CtorKind { . pub fn from_ast(vdata: &ast::VariantData) -> CtorKind { 36 ( 0.00%) match *vdata { . ast::VariantData::Tuple(..) => CtorKind::Fn, . ast::VariantData::Unit(..) => CtorKind::Const, . ast::VariantData::Struct(..) => CtorKind::Fictive, . } 9 ( 0.00%) } . . pub fn from_hir(vdata: &hir::VariantData<'_>) -> CtorKind { . match *vdata { . hir::VariantData::Tuple(..) => CtorKind::Fn, . hir::VariantData::Unit(..) => CtorKind::Const, . hir::VariantData::Struct(..) => CtorKind::Fictive, . } . } -- line 503 ---------------------------------------- -- line 530 ---------------------------------------- . | NonMacroAttrKind::DeriveHelperCompat => true, . NonMacroAttrKind::Builtin(..) | NonMacroAttrKind::Registered => false, . } . } . } . . impl Res { . /// Return the `DefId` of this `Def` if it has an ID, else panic. 20 ( 0.00%) pub fn def_id(&self) -> DefId . where . Id: Debug, . { . self.opt_def_id() . .unwrap_or_else(|| panic!("attempted .def_id() on invalid res: {:?}", self)) 20 ( 0.00%) } . . /// Return `Some(..)` with the `DefId` of this `Res` if it has a ID, else `None`. . pub fn opt_def_id(&self) -> Option { 48 ( 0.00%) match *self { . Res::Def(_, id) => Some(id), . . Res::Local(..) . | Res::PrimTy(..) . | Res::SelfTy(..) . | Res::SelfCtor(..) . | Res::ToolMod . | Res::NonMacroAttr(..) -- line 556 ---------------------------------------- -- line 585 ---------------------------------------- . match *self { . Res::Def(kind, _) => kind.article(), . Res::NonMacroAttr(kind) => kind.article(), . Res::Err => "an", . _ => "a", . } . } . 106 ( 0.00%) pub fn map_id(self, mut map: impl FnMut(Id) -> R) -> Res { 27,881 ( 0.04%) match self { 27,630 ( 0.03%) Res::Def(kind, id) => Res::Def(kind, id), . Res::SelfCtor(id) => Res::SelfCtor(id), 6 ( 0.00%) Res::PrimTy(id) => Res::PrimTy(id), 64 ( 0.00%) Res::Local(id) => Res::Local(map(id)), 14 ( 0.00%) Res::SelfTy(a, b) => Res::SelfTy(a, b), . Res::ToolMod => Res::ToolMod, . Res::NonMacroAttr(attr_kind) => Res::NonMacroAttr(attr_kind), . Res::Err => Res::Err, . } 318 ( 0.00%) } . . #[track_caller] . pub fn expect_non_local(self) -> Res { . self.map_id(|_| panic!("unexpected `Res::Local`")) . } . . pub fn macro_kind(self) -> Option { 265 ( 0.00%) match self { . Res::Def(DefKind::Macro(kind), _) => Some(kind), . Res::NonMacroAttr(..) => Some(MacroKind::Attr), . _ => None, . } . } . . /// Returns `None` if this is `Res::Err` . pub fn ns(&self) -> Option { -- line 620 ---------------------------------------- 76,296 ( 0.10%) -------------------------------------------------------------------------------- -- 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 { 332 ( 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 = $enc.data.len(); . -- line 40 ---------------------------------------- -- line 67 ---------------------------------------- . . #[inline] . fn emit_unit(&mut self) -> EncodeResult { . Ok(()) . } . . #[inline] . fn emit_usize(&mut self, v: usize) -> EncodeResult { 5,975 ( 0.01%) write_leb128!(self, v, usize, write_usize_leb128) . } . . #[inline] . fn emit_u128(&mut self, v: u128) -> EncodeResult { 7 ( 0.00%) write_leb128!(self, v, u128, write_u128_leb128) . } . . #[inline] . fn emit_u64(&mut self, v: u64) -> EncodeResult { 77 ( 0.00%) write_leb128!(self, v, u64, write_u64_leb128) . } . . #[inline] . fn emit_u32(&mut self, v: u32) -> EncodeResult { 4,846 ( 0.01%) write_leb128!(self, v, u32, write_u32_leb128) . } . . #[inline] . fn emit_u16(&mut self, v: u16) -> EncodeResult { . self.data.extend_from_slice(&v.to_le_bytes()); . Ok(()) . } . -- line 98 ---------------------------------------- -- line 131 ---------------------------------------- . #[inline] . fn emit_i8(&mut self, v: i8) -> EncodeResult { . let as_u8: u8 = unsafe { std::mem::transmute(v) }; . self.emit_u8(as_u8) . } . . #[inline] . fn emit_bool(&mut self, v: bool) -> EncodeResult { 55 ( 0.00%) self.emit_u8(if v { 1 } else { 0 }) . } . . #[inline] . fn emit_f64(&mut self, v: f64) -> EncodeResult { . let as_u64: u64 = v.to_bits(); . self.emit_u64(as_u64) . } . -- line 147 ---------------------------------------- -- line 549 ---------------------------------------- . #[inline] . pub fn advance(&mut self, bytes: usize) { . self.position += bytes; . } . . #[inline] . pub fn read_raw_bytes(&mut self, bytes: usize) -> &'a [u8] { . let start = self.position; 4 ( 0.00%) self.position += bytes; 4 ( 0.00%) &self.data[start..self.position] . } . } . . macro_rules! read_leb128 { . ($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 { 330 ( 0.00%) read_leb128!(self, read_u128_leb128) . } . . #[inline] . fn read_u64(&mut self) -> u64 { 941 ( 0.00%) read_leb128!(self, read_u64_leb128) . } . . #[inline] 19,236 ( 0.02%) fn read_u32(&mut self) -> u32 { 81,122 ( 0.10%) read_leb128!(self, read_u32_leb128) 38,472 ( 0.05%) } . . #[inline] . fn read_u16(&mut self) -> u16 { 561,386 ( 0.71%) let bytes = [self.data[self.position], self.data[self.position + 1]]; 80,198 ( 0.10%) let value = u16::from_le_bytes(bytes); 160,396 ( 0.20%) self.position += 2; . value . } . . #[inline] . fn read_u8(&mut self) -> u8 { 1,147,656 ( 1.44%) let value = self.data[self.position]; 222,987 ( 0.28%) self.position += 1; . value . } . . #[inline] 69,472 ( 0.09%) fn read_usize(&mut self) -> usize { 69,472 ( 0.09%) read_leb128!(self, read_usize_leb128) 138,944 ( 0.17%) } . . #[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(); 1,345 ( 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> { 14,660 ( 0.02%) let len = self.read_usize(); 89,096 ( 0.11%) let sentinel = self.data[self.position + len]; 22,274 ( 0.03%) assert!(sentinel == STR_SENTINEL); . let s = unsafe { . std::str::from_utf8_unchecked(&self.data[self.position..self.position + len]) . }; 55,685 ( 0.07%) self.position += len + 1; 10,569 ( 0.01%) Cow::Borrowed(s) . } . . #[inline] . fn read_raw_bytes_into(&mut self, s: &mut [u8]) { 31 ( 0.00%) let start = self.position; 202 ( 0.00%) self.position += s.len(); 31 ( 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 ---------------------------------------- 236,156 ( 0.30%) -------------------------------------------------------------------------------- -- 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 {} . } . 178 ( 0.00%) #[derive(Clone, Encodable, Decodable, Debug, Copy, HashStable_Generic)] . pub struct Spanned { . pub node: T, . pub span: Span, . } . . pub fn respan(sp: Span, t: T) -> Spanned { 133 ( 0.00%) Spanned { node: t, span: sp } 5,355 ( 0.01%) } . . pub fn dummy_spanned(t: T) -> Spanned { . respan(DUMMY_SP, t) . } . . // _____________________________________________________________________________ . // SourceFile, MultiByteChar, FileName, FileLines . // -- line 96 ---------------------------------------- -- line 107 ---------------------------------------- . /// A FileLoader that uses std::fs to load real files. . pub struct RealFileLoader; . . impl FileLoader for RealFileLoader { . fn file_exists(&self, path: &Path) -> bool { . path.exists() . } . 2 ( 0.00%) fn read_file(&self, path: &Path) -> io::Result { . fs::read_to_string(path) 3 ( 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. 32 ( 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 { 660 ( 0.00%) StableSourceFileId::new_from_name(&source_file.name, source_file.cnum) . } . 1,655 ( 0.00%) fn new_from_name(name: &FileName, cnum: CrateNum) -> StableSourceFileId { . let mut hasher = StableHasher::new(); 331 ( 0.00%) name.hash(&mut hasher); . StableSourceFileId { file_name_hash: hasher.finish(), cnum } 1,986 ( 0.00%) } . } . . // _____________________________________________________________________________ . // SourceMap . // . . #[derive(Default)] . pub(super) struct SourceMapFiles { -- line 164 ---------------------------------------- -- line 184 ---------------------------------------- . pub fn new(path_mapping: FilePathMapping) -> SourceMap { . Self::with_file_loader_and_hash_kind( . Box::new(RealFileLoader), . path_mapping, . SourceFileHashAlgorithm::Md5, . ) . } . 1 ( 0.00%) pub fn with_file_loader_and_hash_kind( . file_loader: Box, . path_mapping: FilePathMapping, . hash_kind: SourceFileHashAlgorithm, . ) -> SourceMap { 5 ( 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 { 3 ( 0.00%) &self.path_mapping 3 ( 0.00%) } . . pub fn file_exists(&self, path: &Path) -> bool { . self.file_loader.file_exists(path) . } . 11 ( 0.00%) pub fn load_file(&self, path: &Path) -> io::Result> { 4 ( 0.00%) let src = self.file_loader.read_file(path)?; . let filename = path.to_owned().into(); 18 ( 0.00%) Ok(self.new_source_file(filename, src)) 9 ( 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`. 11 ( 0.00%) pub fn files(&self) -> MappedReadGuard<'_, monotonic::MonotonicVec>> { . ReadGuard::map(self.files.borrow(), |files| &files.source_files) 33 ( 0.00%) } . 4 ( 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() 5 ( 0.00%) } . . fn allocate_address_space(&self, size: usize) -> Result { 331 ( 0.00%) let size = u32::try_from(size).map_err(|_| OffsetOverflowError)?; . . loop { 331 ( 0.00%) let current = self.used_address_space.load(Ordering::Relaxed); 993 ( 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. 8 ( 0.00%) pub fn new_source_file(&self, filename: FileName, src: String) -> Lrc { 12 ( 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() . }) 9 ( 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. 13 ( 0.00%) let (filename, _) = self.path_mapping.map_filename_prefix(&filename); . 2 ( 0.00%) let file_id = StableSourceFileId::new_from_name(&filename, LOCAL_CRATE); . 6 ( 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())?; . 6 ( 0.00%) let source_file = Lrc::new(SourceFile::new( 9 ( 0.00%) filename, 3 ( 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. 2,640 ( 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 { 249,570 ( 0.31%) *pos = *pos + start_pos; . } . . for mbc in &mut file_local_multibyte_chars { 568 ( 0.00%) mbc.pos = mbc.pos + start_pos; . } . . for swc in &mut file_local_non_narrow_chars { 536 ( 0.00%) *swc = *swc + start_pos; . } . . for nc in &mut file_local_normalized_pos { . nc.pos = nc.pos + start_pos; . } . 990 ( 0.00%) let source_file = Lrc::new(SourceFile { 2,640 ( 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 2,970 ( 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) . } . 143 ( 0.00%) pub fn is_multiline(&self, sp: Span) -> bool { 52 ( 0.00%) let lo = self.lookup_source_file_idx(sp.lo()); 52 ( 0.00%) let hi = self.lookup_source_file_idx(sp.hi()); 26 ( 0.00%) if lo != hi { . return true; . } 26 ( 0.00%) let f = (*self.files.borrow().source_files)[lo].clone(); . f.lookup_line(sp.lo()) != f.lookup_line(sp.hi()) 117 ( 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, . { 56 ( 0.00%) let local_begin = self.lookup_byte_offset(sp.lo()); 56 ( 0.00%) let local_end = self.lookup_byte_offset(sp.hi()); . 16 ( 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(); 8 ( 0.00%) let source_len = (local_begin.sf.end_pos - local_begin.sf.start_pos).to_usize(); . 32 ( 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, . })); . } . 24 ( 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`. 96 ( 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)) . }) 72 ( 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`. 88 ( 0.00%) pub fn span_until_char(&self, sp: Span, c: char) -> Span { 32 ( 0.00%) match self.span_to_snippet(sp) { 32 ( 0.00%) Ok(snippet) => { . let snippet = snippet.split(c).next().unwrap_or("").trim_end(); 16 ( 0.00%) if !snippet.is_empty() && !snippet.contains('\n') { 40 ( 0.00%) sp.with_hi(BytePos(sp.lo().0 + snippet.len() as u32)) . } else { . sp . } . } . _ => sp, . } 72 ( 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. 16 ( 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. 192 ( 0.00%) pub fn end_point(&self, sp: Span) -> Span { . let pos = sp.hi().0; . 64 ( 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)); 160 ( 0.00%) sp.with_lo(end_point) . } . . /// Returns a new span representing the next character after the end-point of this span. 33 ( 0.00%) pub fn next_point(&self, sp: Span) -> Span { 3 ( 0.00%) if sp.is_dummy() { . return sp; . } . let start_of_next_point = sp.hi().0; . 12 ( 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 = 6 ( 0.00%) start_of_next_point.checked_add(width - 1).unwrap_or(start_of_next_point); . 6 ( 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) 27 ( 0.00%) } . . /// Finds the width of the character, either before or after the end of provided span, . /// depending on the `forwards` parameter. 228 ( 0.00%) fn find_width_of_character_at_span(&self, sp: Span, forwards: bool) -> u32 { . let sp = sp.data(); 19 ( 0.00%) if sp.lo == sp.hi { . debug!("find_width_of_character_at_span: early return empty span"); . return 1; . } . 112 ( 0.00%) let local_begin = self.lookup_byte_offset(sp.lo); 144 ( 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 . ); . 32 ( 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. 64 ( 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; . } . 16 ( 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. 64 ( 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. 48 ( 0.00%) let snippet = if let Some(ref src) = local_begin.sf.src { . &src[start_index..] . } else if let Some(src) = src.get_source() { . &src[start_index..] . } else { . return 1; . }; . debug!("find_width_of_character_at_span: snippet=`{:?}`", snippet); . 96 ( 0.00%) let mut target = if forwards { end_index + 1 } else { end_index - 1 }; . debug!("find_width_of_character_at_span: initial target=`{:?}`", target); . 64 ( 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); . 64 ( 0.00%) if forwards { (target - end_index) as u32 } else { (end_index - target) as u32 } 171 ( 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`. 240 ( 0.00%) pub fn lookup_byte_offset(&self, bpos: BytePos) -> SourceFileAndBytePos { 48 ( 0.00%) let idx = self.lookup_source_file_idx(bpos); 96 ( 0.00%) let sf = (*self.files.borrow().source_files)[idx].clone(); . let offset = bpos - sf.start_pos; . SourceFileAndBytePos { sf, pos: offset } 240 ( 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` 258 ( 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) 170 ( 0.00%) .unwrap_or_else(|p| p - 1) 344 ( 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 { 56 ( 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 { . pub fn empty() -> FilePathMapping { . FilePathMapping::new(Vec::new()) . } . 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 . }; . 12 ( 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. 45 ( 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); . } . } . 25 ( 0.00%) (path, false) 45 ( 0.00%) } . 8 ( 0.00%) fn map_filename_prefix(&self, file: &FileName) -> (FileName, bool) { 2 ( 0.00%) match file { 2 ( 0.00%) FileName::Real(realfile) if let RealFileName::LocalPath(local_path) = realfile => { 14 ( 0.00%) let (mapped_path, mapped) = self.map_prefix(local_path.to_path_buf()); 1 ( 0.00%) let realfile = if mapped { . RealFileName::Remapped { . local_path: Some(local_path.clone()), . virtual_name: mapped_path, . } . } else { . realfile.clone() . }; 10 ( 0.00%) (FileName::Real(realfile), mapped) 4 ( 0.00%) } . FileName::Real(_) => unreachable!("attempted to remap an already remapped filename"), . other => (other.clone(), false), . } . } . } 2,484 ( 0.00%) -------------------------------------------------------------------------------- -- 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); . } . } . } . } . 73,003 ( 0.09%) pub(crate) fn entry(&mut self, hash: HashValue, key: K) -> Entry<'_, K, V> . where . K: Eq, . { . let eq = equivalent(&key, &self.entries); 6,435 ( 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. 2,000 ( 0.00%) Some(raw_bucket) => Entry::Occupied(OccupiedEntry { . map: self, . raw_bucket, 618 ( 0.00%) key, . }), 32,976 ( 0.04%) None => Entry::Vacant(VacantEntry { . map: self, . hash, 33,156 ( 0.04%) key, . }), . } 61,064 ( 0.08%) } . . 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 { 379 ( 0.00%) let index = self.index(); 1,137 ( 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 ---------------------------------------- 26,342 ( 0.03%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/hash/mod.rs -------------------------------------------------------------------------------- Ir -- line 229 ---------------------------------------- . /// ``` . /// . /// [`VecDeque`]: ../../std/collections/struct.VecDeque.html . /// [`as_slices`]: ../../std/collections/struct.VecDeque.html#method.as_slices . /// [`make_contiguous`]: ../../std/collections/struct.VecDeque.html#method.make_contiguous . /// [`hash`]: Hash::hash . /// [`hash_slice`]: Hash::hash_slice . #[stable(feature = "hash_slice", since = "1.3.0")] 50 ( 0.00%) fn hash_slice(data: &[Self], state: &mut H) . where . Self: Sized, . { . for piece in data { 9 ( 0.00%) piece.hash(state); . } 114 ( 0.00%) } . } . . // Separate module to reexport the macro `Hash` from prelude without the trait `Hash`. . pub(crate) mod macros { . /// Derive macro generating an impl of the trait `Hash`. . #[rustc_builtin_macro] . #[stable(feature = "builtin_macro_prelude", since = "1.38.0")] . #[allow_internal_unstable(core_intrinsics)] -- line 252 ---------------------------------------- -- line 335 ---------------------------------------- . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . fn write(&mut self, bytes: &[u8]); . . /// Writes a single `u8` into this hasher. . #[inline] . #[stable(feature = "hasher_write", since = "1.3.0")] . fn write_u8(&mut self, i: u8) { 946 ( 0.00%) self.write(&[i]) . } . /// Writes a single `u16` into this hasher. . #[inline] . #[stable(feature = "hasher_write", since = "1.3.0")] . fn write_u16(&mut self, i: u16) { . self.write(&i.to_ne_bytes()) . } . /// Writes a single `u32` into this hasher. . #[inline] . #[stable(feature = "hasher_write", since = "1.3.0")] . fn write_u32(&mut self, i: u32) { 270 ( 0.00%) self.write(&i.to_ne_bytes()) . } . /// Writes a single `u64` into this hasher. . #[inline] . #[stable(feature = "hasher_write", since = "1.3.0")] . fn write_u64(&mut self, i: u64) { 10 ( 0.00%) self.write(&i.to_ne_bytes()) . } . /// Writes a single `u128` into this hasher. . #[inline] . #[stable(feature = "i128", since = "1.26.0")] . fn write_u128(&mut self, i: u128) { 91 ( 0.00%) self.write(&i.to_ne_bytes()) . } . /// Writes a single `usize` into this hasher. . #[inline] . #[stable(feature = "hasher_write", since = "1.3.0")] 2 ( 0.00%) fn write_usize(&mut self, i: usize) { 759 ( 0.00%) self.write(&i.to_ne_bytes()) 4 ( 0.00%) } . . /// Writes a single `i8` into this hasher. . #[inline] . #[stable(feature = "hasher_write", since = "1.3.0")] . fn write_i8(&mut self, i: i8) { . self.write_u8(i as u8) . } . /// Writes a single `i16` into this hasher. -- line 382 ---------------------------------------- -- line 402 ---------------------------------------- . #[stable(feature = "i128", since = "1.26.0")] . fn write_i128(&mut self, i: i128) { . self.write_u128(i as u128) . } . /// Writes a single `isize` into this hasher. . #[inline] . #[stable(feature = "hasher_write", since = "1.3.0")] . fn write_isize(&mut self, i: isize) { 4 ( 0.00%) self.write_usize(i as usize) . } . } . . #[stable(feature = "indirect_hasher_impl", since = "1.22.0")] . impl Hasher for &mut H { . fn finish(&self) -> u64 { . (**self).finish() . } -- line 418 ---------------------------------------- -- line 545 ---------------------------------------- . /// bh.hash_one(&OrderAmbivalentPair(2, 10)) . /// ); . /// ``` . #[unstable(feature = "build_hasher_simple_hash_one", issue = "86161")] . fn hash_one(&self, x: T) -> u64 . where . Self: Sized, . { 80,030 ( 0.10%) let mut hasher = self.build_hasher(); 71,842 ( 0.09%) x.hash(&mut hasher); 36,333 ( 0.05%) hasher.finish() . } . } . . /// Used to create a default [`BuildHasher`] instance for types that implement . /// [`Hasher`] and [`Default`]. . /// . /// `BuildHasherDefault` can be used when a type `H` implements [`Hasher`] and . /// [`Default`], and you need a corresponding [`BuildHasher`] instance, but none is -- line 563 ---------------------------------------- -- line 651 ---------------------------------------- . . use super::*; . . macro_rules! impl_write { . ($(($ty:ident, $meth:ident),)*) => {$( . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for $ty { . #[inline] 9 ( 0.00%) fn hash(&self, state: &mut H) { . state.$meth(*self) 18 ( 0.00%) } . . #[inline] . fn hash_slice(data: &[$ty], state: &mut H) { 32 ( 0.00%) let newlen = data.len() * mem::size_of::<$ty>(); . let ptr = data.as_ptr() as *const u8; . // SAFETY: `ptr` is valid and aligned, as this macro is only used . // for numeric primitives which have no padding. The new slice only . // spans across `data` and is never mutated, and its total size is the . // same as the original `data` so it can't be over `isize::MAX`. . state.write(unsafe { slice::from_raw_parts(ptr, newlen) }) . } . } -- line 673 ---------------------------------------- -- line 703 ---------------------------------------- . fn hash(&self, state: &mut H) { . state.write_u32(*self as u32) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for str { . #[inline] 559 ( 0.00%) fn hash(&self, state: &mut H) { 2,046 ( 0.00%) state.write(self.as_bytes()); . state.write_u8(0xff) 559 ( 0.00%) } . } . . #[stable(feature = "never_hash", since = "1.29.0")] . impl Hash for ! { . #[inline] . fn hash(&self, _: &mut H) { . *self . } -- line 722 ---------------------------------------- -- line 732 ---------------------------------------- . ); . . ( $($name:ident)+) => ( . #[stable(feature = "rust1", since = "1.0.0")] . impl<$($name: Hash),+> Hash for ($($name,)+) where last_type!($($name,)+): ?Sized { . #[allow(non_snake_case)] . #[inline] . fn hash(&self, state: &mut S) { 52 ( 0.00%) let ($(ref $name,)+) = *self; 2 ( 0.00%) $($name.hash(state);)+ . } . } . ); . } . . macro_rules! last_type { . ($a:ident,) => { $a }; . ($a:ident, $($rest_a:ident,)+) => { last_type!($($rest_a,)+) }; -- line 749 ---------------------------------------- -- line 763 ---------------------------------------- . impl_hash_tuple! { A B C D E F G H I J K } . impl_hash_tuple! { A B C D E F G H I J K L } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for [T] { . #[inline] . fn hash(&self, state: &mut H) { . self.len().hash(state); 186 ( 0.00%) Hash::hash_slice(self, state) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for &T { . #[inline] 33,455 ( 0.04%) fn hash(&self, state: &mut H) { 55,430 ( 0.07%) (**self).hash(state); 33,455 ( 0.04%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for &mut T { . #[inline] . fn hash(&self, state: &mut H) { . (**self).hash(state); . } -- line 788 ---------------------------------------- 32 ( 0.00%) -------------------------------------------------------------------------------- -- 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) { 46,047 ( 0.06%) self.hash = self.hash.rotate_left(5).bitxor(i).wrapping_mul(K); . } . } . . impl Hasher for FxHasher { . #[inline] 520 ( 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()); . 34,708 ( 0.04%) let mut hash = FxHasher { hash: self.hash }; . assert!(size_of::() <= 8); 472,034 ( 0.59%) while bytes.len() >= size_of::() { . hash.add_to_hash(read_usize(bytes) as usize); . bytes = &bytes[size_of::()..]; . } 69,274 ( 0.09%) 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..]; . } 69,274 ( 0.09%) 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..]; . } 77,880 ( 0.10%) if (size_of::() > 1) && bytes.len() >= 1 { 18,224 ( 0.02%) hash.add_to_hash(bytes[0] as usize); . } 619 ( 0.00%) self.hash = hash.hash; 520 ( 0.00%) } . . #[inline] . fn write_u8(&mut self, i: u8) { 4 ( 0.00%) self.add_to_hash(i as usize); . } . . #[inline] . fn write_u16(&mut self, i: u16) { 1 ( 0.00%) self.add_to_hash(i as usize); . } . . #[inline] . fn write_u32(&mut self, i: u32) { 26,485 ( 0.03%) 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_middle/src/ty/mod.rs -------------------------------------------------------------------------------- Ir -- line 168 ---------------------------------------- . pub self_ty: Ty<'tcx>, . pub trait_ref: Option>, . pub predicates: Vec>, . } . . #[derive( . Copy, . Clone, 173 ( 0.00%) PartialEq, . Eq, . Hash, . TyEncodable, 2,590 ( 0.00%) TyDecodable, . HashStable, . Debug, . TypeFoldable . )] . pub enum ImplPolarity { . /// `impl Trait for Type` . Positive, . /// `impl !Trait for Type` -- line 188 ---------------------------------------- -- line 210 ---------------------------------------- . match self { . Self::Positive => f.write_str("positive"), . Self::Negative => f.write_str("negative"), . Self::Reservation => f.write_str("reservation"), . } . } . } . 89,079 ( 0.11%) #[derive(Clone, Debug, PartialEq, Eq, Copy, Hash, TyEncodable, TyDecodable, HashStable)] . pub enum Visibility { . /// Visible everywhere (including in other crates). . Public, . /// Visible only in the given crate-local module. . Restricted(DefId), . /// Not visible anywhere in the local crate. This is the visibility of private external items. . Invisible, . } . 126 ( 0.00%) #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, HashStable, TyEncodable, TyDecodable)] . pub enum BoundConstness { . /// `T: Trait` . NotConst, . /// `T: ~const Trait` . /// . /// Requires resolving to const only when we are in a const context. . ConstIfConst, . } . . impl BoundConstness { . /// Reduce `self` and `constness` to two possible combined states instead of four. 62 ( 0.00%) pub fn and(&mut self, constness: hir::Constness) -> hir::Constness { 93 ( 0.00%) match (constness, self) { . (hir::Constness::Const, BoundConstness::ConstIfConst) => hir::Constness::Const, . (_, this) => { 126 ( 0.00%) *this = BoundConstness::NotConst; . hir::Constness::NotConst . } . } 31 ( 0.00%) } . } . . impl fmt::Display for BoundConstness { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . match self { . Self::NotConst => f.write_str("normal"), . Self::ConstIfConst => f.write_str("`~const`"), . } -- line 256 ---------------------------------------- -- line 279 ---------------------------------------- . pub trait DefIdTree: Copy { . fn parent(self, id: DefId) -> Option; . . fn is_descendant_of(self, mut descendant: DefId, ancestor: DefId) -> bool { . if descendant.krate != ancestor.krate { . return false; . } . 6 ( 0.00%) while descendant != ancestor { . match self.parent(descendant) { . Some(parent) => descendant = parent, . None => return false, . } . } . true . } . } . . impl<'tcx> DefIdTree for TyCtxt<'tcx> { 56 ( 0.00%) fn parent(self, id: DefId) -> Option { . self.def_key(id).parent.map(|index| DefId { index, ..id }) 84 ( 0.00%) } . } . . impl Visibility { . pub fn from_hir(visibility: &hir::Visibility<'_>, id: hir::HirId, tcx: TyCtxt<'_>) -> Self { . match visibility.node { . hir::VisibilityKind::Public => Visibility::Public, . hir::VisibilityKind::Crate(_) => Visibility::Restricted(DefId::local(CRATE_DEF_INDEX)), . hir::VisibilityKind::Restricted { ref path, .. } => match path.res { -- line 308 ---------------------------------------- -- line 313 ---------------------------------------- . }, . hir::VisibilityKind::Inherited => { . Visibility::Restricted(tcx.parent_module(id).to_def_id()) . } . } . } . . /// Returns `true` if an item with this visibility is accessible from the given block. 639 ( 0.00%) pub fn is_accessible_from(self, module: DefId, tree: T) -> bool { 1,254 ( 0.00%) let restriction = match self { . // Public items are visible everywhere. . Visibility::Public => return true, . // Private items from other crates are visible nowhere. . Visibility::Invisible => return false, . // Restricted items are visible in an arbitrary local module. 6 ( 0.00%) Visibility::Restricted(other) if other.krate != module.krate => return false, . Visibility::Restricted(module) => module, . }; . . tree.is_descendant_of(module, restriction) 639 ( 0.00%) } . . /// Returns `true` if this visibility is at least as accessible as the given visibility 342 ( 0.00%) pub fn is_at_least(self, vis: Visibility, tree: T) -> bool { 424 ( 0.00%) let vis_restriction = match vis { . Visibility::Public => return self == Visibility::Public, . Visibility::Invisible => return true, . Visibility::Restricted(module) => module, . }; . . self.is_accessible_from(vis_restriction, tree) 342 ( 0.00%) } . . // Returns `true` if this item is visible anywhere in the local crate. . pub fn is_visible_locally(self) -> bool { . match self { . Visibility::Public => true, . Visibility::Restricted(def_id) => def_id.is_local(), . Visibility::Invisible => false, . } . } . . pub fn is_public(self) -> bool { 34 ( 0.00%) matches!(self, Visibility::Public) 17 ( 0.00%) } . } . . /// The crate variances map is computed during typeck and contains the . /// variance of every item in the local crate. You should not use it . /// directly, because to do so will make your pass dependent on the . /// HIR of every item in the local crate. Instead, use . /// `tcx.variances_of()` to get the variance for a *particular* . /// item. -- line 365 ---------------------------------------- -- line 509 ---------------------------------------- . #[derive(Clone, Copy, Lift)] . pub struct Predicate<'tcx> { . inner: &'tcx PredicateInner<'tcx>, . } . . impl<'tcx> PartialEq for Predicate<'tcx> { . fn eq(&self, other: &Self) -> bool { . // `self.kind` is always interned. 164 ( 0.00%) ptr::eq(self.inner, other.inner) 164 ( 0.00%) } . } . . impl Hash for Predicate<'_> { . fn hash(&self, s: &mut H) { . (self.inner as *const PredicateInner<'_>).hash(s) . } . } . . impl<'tcx> Eq for Predicate<'tcx> {} . . impl<'tcx> Predicate<'tcx> { . /// Gets the inner `Binder<'tcx, PredicateKind<'tcx>>`. . #[inline] . pub fn kind(self) -> Binder<'tcx, PredicateKind<'tcx>> { 1,813 ( 0.00%) self.inner.kind . } . . /// Flips the polarity of a Predicate. . /// . /// Given `T: Trait` predicate it returns `T: !Trait` and given `T: !Trait` returns `T: Trait`. . pub fn flip_polarity(&self, tcx: TyCtxt<'tcx>) -> Option> { . let kind = self . .inner -- line 541 ---------------------------------------- -- line 567 ---------------------------------------- . flags: _, . outer_exclusive_binder: _, . } = self.inner; . . kind.hash_stable(hcx, hasher); . } . } . 7,606 ( 0.01%) #[derive(Clone, Copy, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] 3,211 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub enum PredicateKind<'tcx> { . /// Corresponds to `where Foo: Bar`. `Foo` here would be . /// the `Self` type of the trait reference and `A`, `B`, and `C` . /// would be the type parameters. . Trait(TraitPredicate<'tcx>), . . /// `where 'a: 'b` . RegionOutlives(RegionOutlivesPredicate<'tcx>), -- line 584 ---------------------------------------- -- line 645 ---------------------------------------- . } . . impl<'tcx> Predicate<'tcx> { . /// Performs a substitution suitable for going from a . /// poly-trait-ref to supertraits that must hold if that . /// poly-trait-ref holds. This is slightly different from a normal . /// substitution in terms of what happens with bound regions. See . /// lengthy comment below for details. 27 ( 0.00%) pub fn subst_supertrait( . self, . tcx: TyCtxt<'tcx>, . trait_ref: &ty::PolyTraitRef<'tcx>, . ) -> Predicate<'tcx> { . // The interaction between HRTB and supertraits is not entirely . // obvious. Let me walk you (and myself) through an example. . // . // Let's start with an easy case. Consider two traits: -- line 661 ---------------------------------------- -- line 731 ---------------------------------------- . // ['x, 'b] . let bound_pred = self.kind(); . let pred_bound_vars = bound_pred.bound_vars(); . let trait_bound_vars = trait_ref.bound_vars(); . // 1) Self: Bar1<'a, '^0.0> -> Self: Bar1<'a, '^0.1> . let shifted_pred = . tcx.shift_bound_var_indices(trait_bound_vars.len(), bound_pred.skip_binder()); . // 2) Self: Bar1<'a, '^0.1> -> T: Bar1<'^0.0, '^0.1> 3 ( 0.00%) let new = shifted_pred.subst(tcx, trait_ref.skip_binder().substs); . // 3) ['x] + ['b] -> ['x, 'b] . let bound_vars = . tcx.mk_bound_variable_kinds(trait_bound_vars.iter().chain(pred_bound_vars)); 27 ( 0.00%) tcx.reuse_or_mk_predicate(self, ty::Binder::bind_with_vars(new, bound_vars)) 21 ( 0.00%) } . } . . #[derive(Clone, Copy, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] 152 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct TraitPredicate<'tcx> { . pub trait_ref: TraitRef<'tcx>, . 596 ( 0.00%) pub constness: BoundConstness, . 549 ( 0.00%) pub polarity: ImplPolarity, . } . . pub type PolyTraitPredicate<'tcx> = ty::Binder<'tcx, TraitPredicate<'tcx>>; . . impl<'tcx> TraitPredicate<'tcx> { 760 ( 0.00%) pub fn remap_constness(&mut self, tcx: TyCtxt<'tcx>, param_env: &mut ParamEnv<'tcx>) { 665 ( 0.00%) if unlikely!(Some(self.trait_ref.def_id) == tcx.lang_items().drop_trait()) { . // remap without changing constness of this predicate. . // this is because `T: ~const Drop` has a different meaning to `T: Drop` . param_env.remap_constness_with(self.constness) . } else { 95 ( 0.00%) *param_env = param_env.with_constness(self.constness.and(param_env.constness())) . } 570 ( 0.00%) } . . /// Remap the constness of this predicate before emitting it for diagnostics. . pub fn remap_constness_diag(&mut self, param_env: ParamEnv<'tcx>) { . // this is different to `remap_constness` that callees want to print this predicate . // in case of selection errors. `T: ~const Drop` bounds cannot end up here when the . // param_env is not const because we it is always satisfied in non-const contexts. . if let hir::Constness::NotConst = param_env.constness() { . self.constness = ty::BoundConstness::NotConst; . } . } . . pub fn def_id(self) -> DefId { 186 ( 0.00%) self.trait_ref.def_id 93 ( 0.00%) } . 153 ( 0.00%) pub fn self_ty(self) -> Ty<'tcx> { 459 ( 0.00%) self.trait_ref.self_ty() 306 ( 0.00%) } . } . . impl<'tcx> PolyTraitPredicate<'tcx> { . pub fn def_id(self) -> DefId { . // Ok to skip binder since trait `DefId` does not care about regions. . self.skip_binder().def_id() 102 ( 0.00%) } . . pub fn self_ty(self) -> ty::Binder<'tcx, Ty<'tcx>> { . self.map_bound(|trait_ref| trait_ref.self_ty()) . } . . /// Remap the constness of this predicate before emitting it for diagnostics. . pub fn remap_constness_diag(&mut self, param_env: ParamEnv<'tcx>) { . *self = self.map_bound(|mut p| { . p.remap_constness_diag(param_env); . p . }); . } . } . . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] 151 ( 0.00%) #[derive(HashStable, TypeFoldable)] 167 ( 0.00%) pub struct OutlivesPredicate(pub A, pub B); // `A: B` . pub type RegionOutlivesPredicate<'tcx> = OutlivesPredicate, ty::Region<'tcx>>; . pub type TypeOutlivesPredicate<'tcx> = OutlivesPredicate, ty::Region<'tcx>>; . pub type PolyRegionOutlivesPredicate<'tcx> = ty::Binder<'tcx, RegionOutlivesPredicate<'tcx>>; . pub type PolyTypeOutlivesPredicate<'tcx> = ty::Binder<'tcx, TypeOutlivesPredicate<'tcx>>; . . /// Encodes that `a` must be a subtype of `b`. The `a_is_expected` flag indicates . /// whether the `a` type is the type that we should label as "expected" when . /// presenting user diagnostics. -- line 818 ---------------------------------------- -- line 931 ---------------------------------------- . impl<'tcx> ToPredicate<'tcx> for Binder<'tcx, PredicateKind<'tcx>> { . #[inline(always)] . fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { . tcx.mk_predicate(self) . } . } . . impl<'tcx> ToPredicate<'tcx> for PolyTraitPredicate<'tcx> { 61 ( 0.00%) fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { 305 ( 0.00%) self.map_bound(PredicateKind::Trait).to_predicate(tcx) 122 ( 0.00%) } . } . . impl<'tcx> ToPredicate<'tcx> for PolyRegionOutlivesPredicate<'tcx> { . fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { . self.map_bound(PredicateKind::RegionOutlives).to_predicate(tcx) . } . } . -- line 949 ---------------------------------------- -- line 955 ---------------------------------------- . . impl<'tcx> ToPredicate<'tcx> for PolyProjectionPredicate<'tcx> { . fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { . self.map_bound(PredicateKind::Projection).to_predicate(tcx) . } . } . . impl<'tcx> Predicate<'tcx> { 12 ( 0.00%) pub fn to_opt_poly_trait_pred(self) -> Option> { . let predicate = self.kind(); 36 ( 0.00%) match predicate.skip_binder() { 30 ( 0.00%) PredicateKind::Trait(t) => Some(predicate.rebind(t)), . PredicateKind::Projection(..) . | PredicateKind::Subtype(..) . | PredicateKind::Coerce(..) . | PredicateKind::RegionOutlives(..) . | PredicateKind::WellFormed(..) . | PredicateKind::ObjectSafe(..) . | PredicateKind::ClosureKind(..) . | PredicateKind::TypeOutlives(..) . | PredicateKind::ConstEvaluatable(..) . | PredicateKind::ConstEquate(..) . | PredicateKind::TypeWellFormedFromEnv(..) => None, . } 12 ( 0.00%) } . . pub fn to_opt_type_outlives(self) -> Option> { . let predicate = self.kind(); . match predicate.skip_binder() { . PredicateKind::TypeOutlives(data) => Some(predicate.rebind(data)), . PredicateKind::Trait(..) . | PredicateKind::Projection(..) . | PredicateKind::Subtype(..) -- line 987 ---------------------------------------- -- line 1011 ---------------------------------------- . /// Example: . /// . /// struct Foo> { ... } . /// . /// Here, the `GenericPredicates` for `Foo` would contain a list of bounds like . /// `[[], [U:Bar]]`. Now if there were some particular reference . /// like `Foo`, then the `InstantiatedPredicates` would be `[[], . /// [usize:Bar]]`. 21 ( 0.00%) #[derive(Clone, Debug, TypeFoldable)] . pub struct InstantiatedPredicates<'tcx> { . pub predicates: Vec>, . pub spans: Vec, . } . . impl<'tcx> InstantiatedPredicates<'tcx> { 1 ( 0.00%) pub fn empty() -> InstantiatedPredicates<'tcx> { 168 ( 0.00%) InstantiatedPredicates { predicates: vec![], spans: vec![] } 1 ( 0.00%) } . . pub fn is_empty(&self) -> bool { . self.predicates.is_empty() . } . } . . #[derive(Copy, Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable, TypeFoldable)] . pub struct OpaqueTypeKey<'tcx> { -- line 1036 ---------------------------------------- -- line 1091 ---------------------------------------- . /// ``` . /// for<'a> fn(&'a u32) . /// ``` . /// . /// Once we "enter" into this `for<'a>` quantifier, we are in a . /// new universe that extends `U` -- in this new universe, we can . /// name the region `'a`, but that region was not nameable from . /// `U` because it was not in scope there. 36 ( 0.00%) pub fn next_universe(self) -> UniverseIndex { . UniverseIndex::from_u32(self.private.checked_add(1).unwrap()) 108 ( 0.00%) } . . /// Returns `true` if `self` can name a name from `other` -- in other words, . /// if the set of names in `self` is a superset of those in . /// `other` (`self >= other`). . pub fn can_name(self, other: UniverseIndex) -> bool { 168 ( 0.00%) self.private >= other.private 84 ( 0.00%) } . . /// Returns `true` if `self` cannot name some names from `other` -- in other . /// words, if the set of names in `self` is a strict subset of . /// those in `other` (`self < other`). . pub fn cannot_name(self, other: UniverseIndex) -> bool { . self.private < other.private . } . } -- line 1116 ---------------------------------------- -- line 1198 ---------------------------------------- . /// we also pass the type of its `const_param`. This is the point of `WithOptConstParam`, . /// except that instead of a `Ty` we bundle the `DefId` of the const parameter. . /// Meaning that we need to use `type_of(const_param_did)` if `const_param_did` is `Some` . /// to get the type of `did`. . #[derive(Copy, Clone, Debug, TypeFoldable, Lift, TyEncodable, TyDecodable)] . #[derive(PartialEq, Eq, PartialOrd, Ord)] . #[derive(Hash, HashStable)] . pub struct WithOptConstParam { 26 ( 0.00%) pub did: T, . /// The `DefId` of the corresponding generic parameter in case `did` is . /// a const argument. . /// . /// Note that even if `did` is a const argument, this may still be `None`. . /// All queries taking `WithOptConstParam` start by calling `tcx.opt_const_param_of(def.did)` . /// to potentially update `param_did` in the case it is `None`. 51 ( 0.00%) pub const_param_did: Option, . } . . impl WithOptConstParam { . /// Creates a new `WithOptConstParam` setting `const_param_did` to `None`. . #[inline(always)] . pub fn unknown(did: T) -> WithOptConstParam { . WithOptConstParam { did, const_param_did: None } 58 ( 0.00%) } . } . . impl WithOptConstParam { . /// Returns `Some((did, param_did))` if `def_id` is a const argument, . /// `None` otherwise. . #[inline(always)] . pub fn try_lookup(did: LocalDefId, tcx: TyCtxt<'_>) -> Option<(LocalDefId, DefId)> { . tcx.opt_const_param_of(did).map(|param_did| (did, param_did)) . } . . /// In case `self` is unknown but `self.did` is a const argument, this returns . /// a `WithOptConstParam` with the correct `const_param_did`. . #[inline(always)] . pub fn try_upgrade(self, tcx: TyCtxt<'_>) -> Option> { 12 ( 0.00%) if self.const_param_did.is_none() { 20 ( 0.00%) if let const_param_did @ Some(_) = tcx.opt_const_param_of(self.did) { . return Some(WithOptConstParam { did: self.did, const_param_did }); . } . } . . None . } . . pub fn to_global(self) -> WithOptConstParam { -- line 1245 ---------------------------------------- -- line 1247 ---------------------------------------- . } . . pub fn def_id_for_type_of(self) -> DefId { . if let Some(did) = self.const_param_did { did } else { self.did.to_def_id() } . } . } . . impl WithOptConstParam { 8 ( 0.00%) pub fn as_local(self) -> Option> { . self.did . .as_local() . .map(|did| WithOptConstParam { did, const_param_did: self.const_param_did }) 8 ( 0.00%) } . . pub fn as_const_arg(self) -> Option<(LocalDefId, DefId)> { 2 ( 0.00%) if let Some(param_did) = self.const_param_did { 1 ( 0.00%) if let Some(did) = self.did.as_local() { . return Some((did, param_did)); . } . } . . None . } . . pub fn is_local(self) -> bool { . self.did.is_local() . } . 4 ( 0.00%) pub fn def_id_for_type_of(self) -> DefId { . self.const_param_did.unwrap_or(self.did) 4 ( 0.00%) } . } . . /// When type checking, we use the `ParamEnv` to track . /// details about the set of where-clauses that are in scope at this . /// particular point. . #[derive(Copy, Clone, Hash, PartialEq, Eq)] . pub struct ParamEnv<'tcx> { . /// This packs both caller bounds and the reveal enum into one pointer. -- line 1285 ---------------------------------------- -- line 1302 ---------------------------------------- . reveal: traits::Reveal, . constness: hir::Constness, . } . . unsafe impl rustc_data_structures::tagged_ptr::Tag for ParamTag { . const BITS: usize = 2; . #[inline] . fn into_usize(self) -> usize { 128 ( 0.00%) match self { . Self { reveal: traits::Reveal::UserFacing, constness: hir::Constness::NotConst } => 0, . Self { reveal: traits::Reveal::All, constness: hir::Constness::NotConst } => 1, . Self { reveal: traits::Reveal::UserFacing, constness: hir::Constness::Const } => 2, . Self { reveal: traits::Reveal::All, constness: hir::Constness::Const } => 3, . } . } . #[inline] . unsafe fn from_usize(ptr: usize) -> Self { 1,591 ( 0.00%) match ptr { . 0 => Self { reveal: traits::Reveal::UserFacing, constness: hir::Constness::NotConst }, . 1 => Self { reveal: traits::Reveal::All, constness: hir::Constness::NotConst }, . 2 => Self { reveal: traits::Reveal::UserFacing, constness: hir::Constness::Const }, . 3 => Self { reveal: traits::Reveal::All, constness: hir::Constness::Const }, . _ => std::hint::unreachable_unchecked(), . } . } . } -- line 1327 ---------------------------------------- -- line 1430 ---------------------------------------- . #[inline] . pub fn without_const(mut self) -> Self { . self.packed.set_tag(ParamTag { constness: hir::Constness::NotConst, ..self.packed.tag() }); . self . } . . #[inline] . pub fn remap_constness_with(&mut self, mut constness: ty::BoundConstness) { 12 ( 0.00%) *self = self.with_constness(constness.and(self.constness())) . } . . /// Returns a new parameter environment with the same clauses, but . /// which "reveals" the true results of projections in all cases . /// (even for associated types that are specializable). This is . /// the desired behavior during codegen and certain other special . /// contexts; normally though we want to use `Reveal::UserFacing`, . /// which is the default. . /// All opaque types in the caller_bounds of the `ParamEnv` . /// will be normalized to their underlying types. . /// See PR #65989 and issue #65918 for more details 16 ( 0.00%) pub fn with_reveal_all_normalized(self, tcx: TyCtxt<'tcx>) -> Self { . if self.packed.tag().reveal == traits::Reveal::All { . return self; . } . . ParamEnv::new( . tcx.normalize_opaque_types(self.caller_bounds()), . Reveal::All, . self.constness(), . ) 18 ( 0.00%) } . . /// Returns this same environment but with no caller bounds. . #[inline] . pub fn without_caller_bounds(self) -> Self { . Self::new(List::empty(), self.reveal(), self.constness()) . } . . /// Creates a suitable environment in which to perform trait -- line 1468 ---------------------------------------- -- line 1472 ---------------------------------------- . /// pair it with the empty environment. This improves caching and is generally . /// invisible. . /// . /// N.B., we preserve the environment when type-checking because it . /// is possible for the user to have wacky where-clauses like . /// `where Box: Copy`, which are clearly never . /// satisfiable. We generally want to behave as if they were true, . /// although the surrounding function is never reachable. 245 ( 0.00%) pub fn and>(self, value: T) -> ParamEnvAnd<'tcx, T> { . match self.reveal() { . Reveal::UserFacing => ParamEnvAnd { param_env: self, value }, . . Reveal::All => { 2 ( 0.00%) if value.is_global() { . ParamEnvAnd { param_env: self.without_caller_bounds(), value } . } else { . ParamEnvAnd { param_env: self, value } . } . } . } 243 ( 0.00%) } . } . . // FIXME(ecstaticmorse): Audit all occurrences of `without_const().to_predicate(tcx)` to ensure that . // the constness of trait bounds is being propagated correctly. . impl<'tcx> PolyTraitRef<'tcx> { . #[inline] . pub fn with_constness(self, constness: BoundConstness) -> PolyTraitPredicate<'tcx> { 10 ( 0.00%) self.map_bound(|trait_ref| ty::TraitPredicate { . trait_ref, . constness, . polarity: ty::ImplPolarity::Positive, . }) . } . #[inline] . pub fn without_const(self) -> PolyTraitPredicate<'tcx> { . self.with_constness(BoundConstness::NotConst) . } . } . 10 ( 0.00%) #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TypeFoldable)] . pub struct ParamEnvAnd<'tcx, T> { 91 ( 0.00%) pub param_env: ParamEnv<'tcx>, 934 ( 0.00%) pub value: T, . } . . impl<'tcx, T> ParamEnvAnd<'tcx, T> { . pub fn into_parts(self) -> (ParamEnv<'tcx>, T) { . (self.param_env, self.value) . } . . #[inline] . pub fn without_const(mut self) -> Self { . self.param_env = self.param_env.without_const(); 3 ( 0.00%) self . } . } . . impl<'a, 'tcx, T> HashStable> for ParamEnvAnd<'tcx, T> . where . T: HashStable>, . { . fn hash_stable(&self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher) { -- line 1534 ---------------------------------------- -- line 1542 ---------------------------------------- . #[derive(Copy, Clone, Debug, HashStable)] . pub struct Destructor { . /// The `DefId` of the destructor method . pub did: DefId, . /// The constness of the destructor method . pub constness: hir::Constness, . } . 12 ( 0.00%) bitflags! { 63 ( 0.00%) #[derive(HashStable, TyEncodable, TyDecodable)] . pub struct VariantFlags: u32 { . const NO_VARIANT_FLAGS = 0; . /// Indicates whether the field list of this variant is `#[non_exhaustive]`. . const IS_FIELD_LIST_NON_EXHAUSTIVE = 1 << 0; . /// Indicates whether this variant was obtained as part of recovering from . /// a syntactic error. May be incomplete or bogus. . const IS_RECOVERED = 1 << 1; . } . } . . /// Definition of a variant -- a struct's fields or an enum variant. 25,461 ( 0.03%) #[derive(Debug, HashStable, TyEncodable, TyDecodable)] . pub struct VariantDef { . /// `DefId` that identifies the variant itself. . /// If this variant belongs to a struct or union, then this is a copy of its `DefId`. . pub def_id: DefId, . /// `DefId` that identifies the variant's constructor. . /// If this variant is a struct variant, then this is `None`. . pub ctor_def_id: Option, . /// Variant or struct name. -- line 1571 ---------------------------------------- -- line 1592 ---------------------------------------- . /// `parent_did` is the `DefId` of the `AdtDef` representing the enum or struct that . /// owns this variant. It is used for checking if a struct has `#[non_exhaustive]` w/out having . /// to go through the redirect of checking the ctor's attributes - but compiling a small crate . /// requires loading the `AdtDef`s for all the structs in the universe (e.g., coherence for any . /// built-in trait), and we do not want to load attributes twice. . /// . /// If someone speeds up attribute loading to not be a performance concern, they can . /// remove this hack and use the constructor `DefId` everywhere. 48 ( 0.00%) pub fn new( . name: Symbol, . variant_did: Option, . ctor_def_id: Option, . discr: VariantDiscr, . fields: Vec, . ctor_kind: CtorKind, . adt_kind: AdtKind, . parent_did: DefId, -- line 1608 ---------------------------------------- -- line 1611 ---------------------------------------- . ) -> Self { . debug!( . "VariantDef::new(name = {:?}, variant_did = {:?}, ctor_def_id = {:?}, discr = {:?}, . fields = {:?}, ctor_kind = {:?}, adt_kind = {:?}, parent_did = {:?})", . name, variant_did, ctor_def_id, discr, fields, ctor_kind, adt_kind, parent_did, . ); . . let mut flags = VariantFlags::NO_VARIANT_FLAGS; 6 ( 0.00%) if is_field_list_non_exhaustive { . flags |= VariantFlags::IS_FIELD_LIST_NON_EXHAUSTIVE; . } . 18 ( 0.00%) if recovered { . flags |= VariantFlags::IS_RECOVERED; . } . 54 ( 0.00%) VariantDef { . def_id: variant_did.unwrap_or(parent_did), . ctor_def_id, . name, . discr, 24 ( 0.00%) fields, . ctor_kind, . flags, . } 24 ( 0.00%) } . . /// Is this field list non-exhaustive? . #[inline] . pub fn is_field_list_non_exhaustive(&self) -> bool { . self.flags.intersects(VariantFlags::IS_FIELD_LIST_NON_EXHAUSTIVE) . } . . /// Was this variant obtained as part of recovering from a syntactic error? . #[inline] . pub fn is_recovered(&self) -> bool { . self.flags.intersects(VariantFlags::IS_RECOVERED) . } . . /// Computes the `Ident` of this variant by looking up the `Span` 105 ( 0.00%) pub fn ident(&self, tcx: TyCtxt<'_>) -> Ident { 60 ( 0.00%) Ident::new(self.name, tcx.def_ident_span(self.def_id).unwrap()) 135 ( 0.00%) } . } . 16,515 ( 0.02%) #[derive(Copy, Clone, Debug, PartialEq, Eq, TyEncodable, TyDecodable, HashStable)] . pub enum VariantDiscr { . /// Explicit value for this variant, i.e., `X = 123`. . /// The `DefId` corresponds to the embedded constant. . Explicit(DefId), . . /// The previous variant's discriminant plus one. . /// For efficiency reasons, the distance from the . /// last `Explicit` discriminant is being stored, . /// or `0` for the first variant, if it has none. . Relative(u32), . } . 57,616 ( 0.07%) #[derive(Debug, HashStable, TyEncodable, TyDecodable)] . pub struct FieldDef { . pub did: DefId, . pub name: Symbol, . pub vis: Visibility, . } . 11 ( 0.00%) bitflags! { . #[derive(TyEncodable, TyDecodable, Default, HashStable)] . pub struct ReprFlags: u8 { . const IS_C = 1 << 0; . const IS_SIMD = 1 << 1; . const IS_TRANSPARENT = 1 << 2; . // Internal only for now. If true, don't reorder fields. . const IS_LINEAR = 1 << 3; . // If true, don't expose any niche to type's context. -- line 1684 ---------------------------------------- -- line 1689 ---------------------------------------- . // Any of these flags being set prevent field reordering optimisation. . const IS_UNOPTIMISABLE = ReprFlags::IS_C.bits . | ReprFlags::IS_SIMD.bits . | ReprFlags::IS_LINEAR.bits; . } . } . . /// Represents the repr options provided by the user, 30,942 ( 0.04%) #[derive(Copy, Clone, Debug, Eq, PartialEq, TyEncodable, TyDecodable, Default, HashStable)] . pub struct ReprOptions { . pub int: Option, . pub align: Option, . pub pack: Option, . pub flags: ReprFlags, . /// The seed to be used for randomizing a type's layout . /// . /// Note: This could technically be a `[u8; 16]` (a `u128`) which would -- line 1705 ---------------------------------------- -- line 1706 ---------------------------------------- . /// be the "most accurate" hash as it'd encompass the item and crate . /// hash without loss, but it does pay the price of being larger. . /// Everything's a tradeoff, a `u64` seed should be sufficient for our . /// purposes (primarily `-Z randomize-layout`) . pub field_shuffle_seed: u64, . } . . impl ReprOptions { 13 ( 0.00%) pub fn new(tcx: TyCtxt<'_>, did: DefId) -> ReprOptions { . let mut flags = ReprFlags::empty(); . let mut size = None; . let mut max_align: Option = None; . let mut min_pack: Option = None; . . // Generate a deterministically-derived seed from the item's path hash . // to allow for cross-crate compilation to actually work . let mut field_shuffle_seed = tcx.def_path_hash(did).0.to_smaller_hash(); . . // If the user defined a custom seed for layout randomization, xor the item's . // path hash with the user defined seed, this will allowing determinism while . // still allowing users to further randomize layout generation for e.g. fuzzing 3 ( 0.00%) if let Some(user_seed) = tcx.sess.opts.debugging_opts.layout_seed { . field_shuffle_seed ^= user_seed; . } . 4 ( 0.00%) for attr in tcx.get_attrs(did).iter() { 5 ( 0.00%) for r in attr::find_repr_attrs(&tcx.sess, attr) { . flags.insert(match r { . attr::ReprC => ReprFlags::IS_C, . attr::ReprPacked(pack) => { . let pack = Align::from_bytes(pack as u64).unwrap(); . min_pack = Some(if let Some(min_pack) = min_pack { . min_pack.min(pack) . } else { . pack -- line 1740 ---------------------------------------- -- line 1753 ---------------------------------------- . ReprFlags::empty() . } . }); . } . } . . // If `-Z randomize-layout` was enabled for the type definition then we can . // consider performing layout randomization 8 ( 0.00%) if tcx.sess.opts.debugging_opts.randomize_layout { . flags.insert(ReprFlags::RANDOMIZE_LAYOUT); . } . . // This is here instead of layout because the choice must make it into metadata. 6 ( 0.00%) if !tcx.consider_optimizing(|| format!("Reorder fields of {:?}", tcx.def_path_str(did))) { . flags.insert(ReprFlags::IS_LINEAR); . } . 2 ( 0.00%) Self { int: size, align: max_align, pack: min_pack, flags, field_shuffle_seed } 28 ( 0.00%) } . . #[inline] . pub fn simd(&self) -> bool { . self.flags.contains(ReprFlags::IS_SIMD) . } . . #[inline] . pub fn c(&self) -> bool { -- line 1779 ---------------------------------------- -- line 1798 ---------------------------------------- . #[inline] . pub fn hide_niche(&self) -> bool { . self.flags.contains(ReprFlags::HIDE_NICHE) . } . . /// Returns the discriminant type, given these `repr` options. . /// This must only be called on enums! . pub fn discr_type(&self) -> attr::IntType { 21 ( 0.00%) self.int.unwrap_or(attr::SignedInt(ast::IntTy::Isize)) 9 ( 0.00%) } . . /// Returns `true` if this `#[repr()]` should inhabit "smart enum . /// layout" optimizations, such as representing `Foo<&T>` as a . /// single pointer. . pub fn inhibit_enum_layout_opt(&self) -> bool { 5 ( 0.00%) self.c() || self.int.is_some() . } . . /// Returns `true` if this `#[repr()]` should inhibit struct field reordering . /// optimizations, such as with `repr(C)`, `repr(packed(1))`, or `repr()`. . pub fn inhibit_struct_field_reordering_opt(&self) -> bool { 6 ( 0.00%) if let Some(pack) = self.pack { . if pack.bytes() == 1 { . return true; . } . } . 12 ( 0.00%) self.flags.intersects(ReprFlags::IS_UNOPTIMISABLE) || self.int.is_some() . } . . /// Returns `true` if this type is valid for reordering and `-Z randomize-layout` . /// was enabled for its declaration crate . pub fn can_randomize_type_layout(&self) -> bool { 3 ( 0.00%) !self.inhibit_struct_field_reordering_opt() . && self.flags.contains(ReprFlags::RANDOMIZE_LAYOUT) . } . . /// Returns `true` if this `#[repr()]` should inhibit union ABI optimisations. . pub fn inhibit_union_abi_opt(&self) -> bool { . self.c() . } . } -- line 1839 ---------------------------------------- -- line 1891 ---------------------------------------- . /// marker traits. . /// 4. Neither of the impls can have any where-clauses. . /// . /// Once `traitobject` 0.1.0 is no longer an active concern, this hack can be removed. . Issue33140, . } . . impl<'tcx> TyCtxt<'tcx> { 168 ( 0.00%) pub fn typeck_body(self, body: hir::BodyId) -> &'tcx TypeckResults<'tcx> { 42 ( 0.00%) self.typeck(self.hir().body_owner_def_id(body)) 168 ( 0.00%) } . . pub fn provided_trait_methods(self, id: DefId) -> impl 'tcx + Iterator { . self.associated_items(id) . .in_definition_order() . .filter(|item| item.kind == AssocKind::Fn && item.defaultness.has_value()) . } . . fn item_name_from_hir(self, def_id: DefId) -> Option { -- line 1909 ---------------------------------------- -- line 1947 ---------------------------------------- . /// . /// See [`item_name`][Self::item_name] for more information. . pub fn opt_item_name(self, def_id: DefId) -> Option { . // Look at the HIR first so the span will be correct if this is a local item. . self.item_name_from_hir(def_id) . .or_else(|| self.item_name_from_def_id(def_id).map(Ident::with_dummy_span)) . } . 1,730 ( 0.00%) pub fn opt_associated_item(self, def_id: DefId) -> Option<&'tcx AssocItem> { 692 ( 0.00%) if let DefKind::AssocConst | DefKind::AssocFn | DefKind::AssocTy = self.def_kind(def_id) { . Some(self.associated_item(def_id)) . } else { . None . } 1,557 ( 0.00%) } . . pub fn field_index(self, hir_id: hir::HirId, typeck_results: &TypeckResults<'_>) -> usize { . typeck_results.field_indices().get(hir_id).cloned().expect("no index for a field") . } . . pub fn find_field_index(self, ident: Ident, variant: &VariantDef) -> Option { . variant . .fields -- line 1969 ---------------------------------------- -- line 2091 ---------------------------------------- . | ty::InstanceDef::Virtual(..) . | ty::InstanceDef::ClosureOnceShim { .. } . | ty::InstanceDef::DropGlue(..) . | ty::InstanceDef::CloneShim(..) => self.mir_shims(instance), . } . } . . /// Gets the attributes of a definition. 1,410 ( 0.00%) pub fn get_attrs(self, did: DefId) -> Attributes<'tcx> { 423 ( 0.00%) if let Some(did) = did.as_local() { 384 ( 0.00%) self.hir().attrs(self.hir().local_def_id_to_hir_id(did)) . } else { . self.item_attrs(did) . } 1,128 ( 0.00%) } . . /// Determines whether an item is annotated with an attribute. 144 ( 0.00%) pub fn has_attr(self, did: DefId, attr: Symbol) -> bool { 486 ( 0.00%) self.sess.contains_name(&self.get_attrs(did), attr) . } . . /// Determines whether an item is annotated with `doc(hidden)`. . pub fn is_doc_hidden(self, did: DefId) -> bool { . self.get_attrs(did) . .iter() . .filter_map(|attr| if attr.has_name(sym::doc) { attr.meta_item_list() } else { None }) . .any(|items| items.iter().any(|item| item.has_name(sym::hidden))) . } . . /// Returns `true` if this is an `auto trait`. 98 ( 0.00%) pub fn trait_is_auto(self, trait_def_id: DefId) -> bool { 14 ( 0.00%) self.trait_def(trait_def_id).has_auto_impl 112 ( 0.00%) } . . /// Returns layout of a generator. Layout might be unavailable if the . /// generator is tainted by errors. . pub fn generator_layout(self, def_id: DefId) -> Option<&'tcx GeneratorLayout<'tcx>> { . self.optimized_mir(def_id).generator_layout() . } . . /// Given the `DefId` of an impl, returns the `DefId` of the trait it implements. . /// If it implements no trait, returns `None`. 21 ( 0.00%) pub fn trait_id_of_impl(self, def_id: DefId) -> Option { . self.impl_trait_ref(def_id).map(|tr| tr.def_id) 27 ( 0.00%) } . . /// If the given defid describes a method belonging to an impl, returns the . /// `DefId` of the impl that the method belongs to; otherwise, returns `None`. 2 ( 0.00%) pub fn impl_of_method(self, def_id: DefId) -> Option { 8 ( 0.00%) self.opt_associated_item(def_id).and_then(|trait_item| match trait_item.container { . TraitContainer(_) => None, . ImplContainer(def_id) => Some(def_id), . }) 4 ( 0.00%) } . . /// Looks up the span of `impl_did` if the impl is local; otherwise returns `Err` . /// with the name of the crate containing the impl. . pub fn span_of_impl(self, impl_did: DefId) -> Result { . if let Some(impl_did) = impl_did.as_local() { . Ok(self.def_span(impl_did)) . } else { . Err(self.crate_name(impl_did.krate)) . } . } . . /// Hygienically compares a use-site name (`use_name`) for a field or an associated item with . /// its supposed definition name (`def_name`). The method also needs `DefId` of the supposed . /// definition's parent/scope to perform comparison. 40 ( 0.00%) pub fn hygienic_eq(self, use_name: Ident, def_name: Ident, def_parent_def_id: DefId) -> bool { . // We could use `Ident::eq` here, but we deliberately don't. The name . // comparison fails frequently, and we want to avoid the expensive . // `normalize_to_macros_2_0()` calls required for the span comparison whenever possible. 5 ( 0.00%) use_name.name == def_name.name 15 ( 0.00%) && use_name . .span . .ctxt() . .hygienic_eq(def_name.span.ctxt(), self.expn_that_defined(def_parent_def_id)) 40 ( 0.00%) } . . pub fn adjust_ident(self, mut ident: Ident, scope: DefId) -> Ident { . ident.span.normalize_to_macros_2_0_and_adjust(self.expn_that_defined(scope)); . ident . } . 27 ( 0.00%) pub fn adjust_ident_and_get_scope( . self, . mut ident: Ident, . scope: DefId, . block: hir::HirId, . ) -> (Ident, DefId) { 3 ( 0.00%) let scope = ident . .span . .normalize_to_macros_2_0_and_adjust(self.expn_that_defined(scope)) . .and_then(|actual_expansion| actual_expansion.expn_data().parent_module) 12 ( 0.00%) .unwrap_or_else(|| self.parent_module(block).to_def_id()); 18 ( 0.00%) (ident, scope) 27 ( 0.00%) } . . pub fn is_object_safe(self, key: DefId) -> bool { . self.object_safety_violations(key).is_empty() . } . } . . /// Yields the parent function's `LocalDefId` if `def_id` is an `impl Trait` definition. 42 ( 0.00%) pub fn is_impl_trait_defn(tcx: TyCtxt<'_>, def_id: DefId) -> Option { 42 ( 0.00%) let def_id = def_id.as_local()?; 52 ( 0.00%) if let Node::Item(item) = tcx.hir().get_by_def_id(def_id) { 22 ( 0.00%) if let hir::ItemKind::OpaqueTy(ref opaque_ty) = item.kind { . return match opaque_ty.origin { . hir::OpaqueTyOrigin::FnReturn(parent) | hir::OpaqueTyOrigin::AsyncFn(parent) => { . Some(parent) . } . hir::OpaqueTyOrigin::TyAlias => None, . }; . } . } . None 56 ( 0.00%) } . . pub fn int_ty(ity: ast::IntTy) -> IntTy { . match ity { . ast::IntTy::Isize => IntTy::Isize, . ast::IntTy::I8 => IntTy::I8, . ast::IntTy::I16 => IntTy::I16, . ast::IntTy::I32 => IntTy::I32, . ast::IntTy::I64 => IntTy::I64, -- line 2216 ---------------------------------------- -- line 2262 ---------------------------------------- . closure::provide(providers); . context::provide(providers); . erase_regions::provide(providers); . layout::provide(providers); . util::provide(providers); . print::provide(providers); . super::util::bug::provide(providers); . super::middle::provide(providers); 8 ( 0.00%) *providers = ty::query::Providers { . trait_impls_of: trait_def::trait_impls_of_provider, . type_uninhabited_from: inhabitedness::type_uninhabited_from, . const_param_default: consts::const_param_default, . vtable_allocation: vtable::vtable_allocation_provider, . ..*providers . }; 1 ( 0.00%) } . . /// A map for the local crate mapping each type to a vector of its . /// inherent impls. This is not meant to be used outside of coherence; . /// rather, you should request the vector for a specific type via . /// `tcx.inherent_impls(def_id)` so as to minimize your dependencies . /// (constructing this map requires touching the entire crate). . #[derive(Clone, Debug, Default, HashStable)] . pub struct CrateInherentImpls { -- line 2285 ---------------------------------------- -- line 2288 ---------------------------------------- . . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, HashStable)] . pub struct SymbolName<'tcx> { . /// `&str` gives a consistent ordering, which ensures reproducible builds. . pub name: &'tcx str, . } . . impl<'tcx> SymbolName<'tcx> { 6 ( 0.00%) pub fn new(tcx: TyCtxt<'tcx>, name: &str) -> SymbolName<'tcx> { . SymbolName { . name: unsafe { str::from_utf8_unchecked(tcx.arena.alloc_slice(name.as_bytes())) }, . } 8 ( 0.00%) } . } . . impl<'tcx> fmt::Display for SymbolName<'tcx> { . fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { . fmt::Display::fmt(&self.name, fmt) . } . } . -- line 2308 ---------------------------------------- 25,524 ( 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)] 80,184 ( 0.10%) pub fn rustc_entry(&mut self, key: K) -> RustcEntry<'_, K, V, A> { . let hash = make_insert_hash(&self.hash_builder, &key); 144 ( 0.00%) if let Some(elem) = self.table.find(hash, |q| q.0.eq(&key)) { 6,571 ( 0.01%) RustcEntry::Occupied(RustcOccupiedEntry { 303 ( 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); . 24,662 ( 0.03%) RustcEntry::Vacant(RustcVacantEntry { . hash, 710 ( 0.00%) key, . table: &mut self.table, . }) . } 66,746 ( 0.08%) } . } . . /// 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 { 283 ( 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)] 120 ( 0.00%) pub fn insert(self, value: V) -> &'a mut V { . unsafe { 1,065 ( 0.00%) let bucket = self.table.insert_no_grow(self.hash, (self.key, value)); 51 ( 0.00%) &mut bucket.as_mut().1 . } 154 ( 0.00%) } . . /// Sets the value of the entry with the RustcVacantEntry's key, . /// and returns a RustcOccupiedEntry. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; -- line 589 ---------------------------------------- 18,548 ( 0.02%) -------------------------------------------------------------------------------- -- 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 . // . 52,708 ( 0.07%) if layout.align() <= MIN_ALIGN && layout.align() <= layout.size() { 39,531 ( 0.05%) 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. 604 ( 0.00%) if layout.align() <= MIN_ALIGN && layout.align() <= layout.size() { 906 ( 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) { 13,317 ( 0.02%) libc::free(ptr as *mut libc::c_void) . } . . #[inline] . unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 { 3,540 ( 0.00%) if layout.align() <= MIN_ALIGN && layout.align() <= new_size { 7,080 ( 0.01%) 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/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. 180 ( 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(); 39 ( 0.00%) variant.encode(encoder)?; 26 ( 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); . 26 ( 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. 26 ( 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. 91 ( 0.00%) if leb128_bits >= 64 || (shorthand as u64) < (1 << leb128_bits) { . cache(encoder).insert(*value, shorthand); . } . . Ok(()) 114 ( 0.00%) } . . impl<'tcx, E: TyEncoder<'tcx>> Encodable for Ty<'tcx> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { 90 ( 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)?; . encode_with_shorthand(e, &self.skip_binder(), TyEncoder::predicate_shorthands) . } -- line 131 ---------------------------------------- -- 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 { 15 ( 0.00%) fn encode(&self, e: &mut E) -> Result<(), E::Error> { 3 ( 0.00%) (**self).encode(e) 15 ( 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 { 3,557 ( 0.00%) (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>, . { 1,364 ( 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)] 14,188 ( 0.02%) fn decode(decoder: &mut D) -> Ty<'tcx> { . // Handle shorthands first, if we have a usize > 0x80. 3,547 ( 0.00%) if decoder.positioned_at_shorthand() { . let pos = decoder.read_usize(); 4,994 ( 0.01%) assert!(pos >= SHORTHAND_OFFSET); 7,491 ( 0.01%) let shorthand = pos - SHORTHAND_OFFSET; . 7,491 ( 0.01%) decoder.cached_ty_for_shorthand(shorthand, |decoder| { . decoder.with_position(shorthand, Ty::decode) . }) . } else { 1,050 ( 0.00%) let tcx = decoder.tcx(); 2,100 ( 0.00%) tcx.mk_ty(ty::TyKind::decode(decoder)) . } 14,188 ( 0.02%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Binder<'tcx, ty::PredicateKind<'tcx>> { 60 ( 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( 10 ( 0.00%) if decoder.positioned_at_shorthand() { . let pos = decoder.read_usize(); 14 ( 0.00%) assert!(pos >= SHORTHAND_OFFSET); 7 ( 0.00%) let shorthand = pos - SHORTHAND_OFFSET; . . decoder.with_position(shorthand, ty::PredicateKind::decode) . } else { 9 ( 0.00%) ty::PredicateKind::decode(decoder) . }, . bound_vars, . ) 60 ( 0.00%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Predicate<'tcx> { . fn decode(decoder: &mut D) -> ty::Predicate<'tcx> { 30 ( 0.00%) let predicate_kind = Decodable::decode(decoder); 10 ( 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(); 2,005 ( 0.00%) let tcx = decoder.tcx(); . tcx.mk_substs( 3,663 ( 0.00%) (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> { 1,974 ( 0.00%) fn decode(decoder: &mut D) -> Self { 846 ( 0.00%) decoder.tcx().mk_region(Decodable::decode(decoder)) 2,256 ( 0.00%) } . } . . 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(); 681 ( 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(); 7 ( 0.00%) decoder.tcx().mk_poly_existential_predicates( 42 ( 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 { 135 ( 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)] { 203 ( 0.00%) fn decode(decoder: &mut D) -> &'tcx Self { 58 ( 0.00%) decoder.tcx().arena.alloc_from_iter( . (0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::>(), . ) 290 ( 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(); 105 ( 0.00%) decoder.tcx().mk_bound_variable_kinds( 25 ( 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] 80,442 ( 0.10%) fn $name(&mut self) -> $ty { 125,489 ( 0.16%) self.opaque.$name() 139,746 ( 0.18%) } . )* . } . } . . macro_rules! impl_arena_allocatable_decoder { . ([]$args:tt) => {}; . ([decode $(, $attrs:ident)*] . [$name:ident: $ty:ty]) => { -- line 412 ---------------------------------------- -- line 483 ---------------------------------------- . } . } . . macro_rules! impl_binder_encode_decode { . ($($t:ty),+ $(,)?) => { . $( . impl<'tcx, E: TyEncoder<'tcx>> Encodable for ty::Binder<'tcx, $t> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { 4 ( 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> { 171 ( 0.00%) fn decode(decoder: &mut D) -> Self { . let bound_vars = Decodable::decode(decoder); . ty::Binder::bind_with_vars(Decodable::decode(decoder), bound_vars) 171 ( 0.00%) } . } . )* . } . } . . impl_binder_encode_decode! { . &'tcx ty::List>, . ty::FnSig<'tcx>, -- line 507 ---------------------------------------- 1,905 ( 0.00%) -------------------------------------------------------------------------------- -- 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)] 247,254 ( 0.31%) 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 { 7,610 ( 0.01%) copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); 47,815 ( 0.06%) 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 { 1,034,741 ( 1.30%) 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. 20 ( 0.00%) return wrapping_sub( 192 ( 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 { 3,077 ( 0.00%) 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 ---------------------------------------- 66,407 ( 0.08%) -------------------------------------------------------------------------------- -- 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 { 10,958 ( 0.01%) 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> { 54 ( 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> { 24 ( 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])> { 109 ( 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> { 3,058 ( 0.00%) 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> { 2,119 ( 0.00%) 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 { 3,725 ( 0.00%) 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 { 1 ( 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) { 24 ( 0.00%) let _ = &self[a]; 436 ( 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 { 53 ( 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]) { 18 ( 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]) { 472 ( 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. 241 ( 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, . { 6 ( 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(); 723 ( 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()); 364 ( 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; 128,400 ( 0.16%) while left < right { 191,146 ( 0.24%) 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. 122,792 ( 0.15%) 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. 63,267 ( 0.08%) if cmp == Less { 46,601 ( 0.06%) left = mid + 1; 40,583 ( 0.05%) } else if cmp == Greater { . right = mid; . } else { . // SAFETY: same as the `get_unchecked` above . unsafe { crate::intrinsics::assume(mid < self.len()) }; . return Ok(mid); . } . 171,267 ( 0.22%) 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, . ); . } . 486 ( 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! 40 ( 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::()) }; 40 ( 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), 40 ( 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 ---------------------------------------- 68,921 ( 0.09%) -------------------------------------------------------------------------------- -- 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 { 64 ( 0.00%) HashMap { . hash_builder: self.hash_builder.clone(), 13 ( 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, . { 15,305 ( 0.02%) 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, . { 5,015 ( 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, . { 1,668 ( 0.00%) 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)] 6 ( 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) 12 ( 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 { 1,888 ( 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 { 13 ( 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 { 169 ( 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 { 717 ( 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)] 8 ( 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 { 10 ( 0.00%) Entry::Vacant(VacantEntry { . hash, . key, . table: self, . }) . } 10 ( 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. 3,499 ( 0.00%) 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, . { 18,459 ( 0.02%) if self.table.is_empty() { . None . } else { 3 ( 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)] 1,364 ( 0.00%) pub fn contains_key(&self, k: &Q) -> bool . where . K: Borrow, . Q: Hash + Eq, . { . self.get_inner(k).is_some() 1,954 ( 0.00%) } . . /// 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)] 9 ( 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. 27 ( 0.00%) match self.get_inner_mut(k) { . Some(&mut (_, ref mut v)) => Some(v), . None => None, . } 18 ( 0.00%) } . . #[inline] . fn get_inner_mut(&mut self, k: &Q) -> Option<&mut (K, V)> . where . K: Borrow, . Q: Hash + Eq, . { 9 ( 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)] 195,520 ( 0.25%) pub fn insert(&mut self, k: K, v: V) -> Option { . let hash = make_insert_hash::(&self.hash_builder, &k); 4 ( 0.00%) if let Some((_, item)) = self.table.get_mut(hash, equivalent_key(&k)) { . Some(mem::replace(item, v)) . } else { 127,334 ( 0.16%) self.table 97,927 ( 0.12%) .insert(hash, (k, v), make_hasher::(&self.hash_builder)); 4,723 ( 0.01%) None . } 163,974 ( 0.21%) } . . /// 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)] 394 ( 0.00%) pub fn remove(&mut self, k: &Q) -> Option . where . K: Borrow, . Q: Hash + Eq, . { . // Avoid `Option::map` because it bloats LLVM IR. 25,594 ( 0.03%) match self.remove_entry(k) { 124 ( 0.00%) Some((_, v)) => Some(v), 364 ( 0.00%) None => None, . } 905 ( 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); 5,216 ( 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, . { 14,460 ( 0.02%) 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)] 33,346 ( 0.04%) 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) 37,159 ( 0.05%) } . . #[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, . { 2,832 ( 0.00%) match self.map.table.find(hash, |(k, _)| is_match(k)) { 12,062 ( 0.02%) Some(elem) => RawEntryMut::Occupied(RawOccupiedEntryMut { . elem, . table: &mut self.map.table, . hash_builder: &self.map.hash_builder, . }), 8,804 ( 0.01%) 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)] 8,816 ( 0.01%) pub fn from_key_hashed_nocheck(self, hash: u64, k: &Q) -> Option<(&'a K, &'a V)> . where . K: Borrow, . Q: Eq, . { 13,477 ( 0.02%) self.from_hash(hash, equivalent(k)) 16,954 ( 0.02%) } . . #[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, . { 14,999 ( 0.02%) 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, . { 13,926 ( 0.02%) 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)] 18 ( 0.00%) fn into_iter(self) -> IntoIter { 493 ( 0.00%) IntoIter { 390 ( 0.00%) inner: self.table.into_iter(), . } 54 ( 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. 946 ( 0.00%) match self.inner.next() { . Some(x) => unsafe { . let r = x.as_ref(); 7 ( 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)> { 42 ( 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)] 349 ( 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. 327 ( 0.00%) let iter = iter.into_iter(); 159 ( 0.00%) let reserve = if self.is_empty() { . iter.size_hint().0 . } else { 3 ( 0.00%) (iter.size_hint().0 + 1) / 2 . }; . self.reserve(reserve); . iter.for_each(move |(k, v)| { 12,205 ( 0.02%) self.insert(k, v); . }); 205 ( 0.00%) } . . #[inline] . #[cfg(feature = "nightly")] . fn extend_one(&mut self, (k, v): (K, V)) { . self.insert(k, v); . } . . #[inline] -- line 4588 ---------------------------------------- 28,399 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/build_reduced_graph.rs -------------------------------------------------------------------------------- Ir -- line 36 ---------------------------------------- . . use std::cell::Cell; . use std::ptr; . use tracing::debug; . . type Res = def::Res; . . impl<'a> ToNameBinding<'a> for (Module<'a>, ty::Visibility, Span, LocalExpnId) { 32 ( 0.00%) fn to_name_binding(self, arenas: &'a ResolverArenas<'a>) -> &'a NameBinding<'a> { . arenas.alloc_name_binding(NameBinding { 4 ( 0.00%) kind: NameBindingKind::Module(self.0), . ambiguity: None, 12 ( 0.00%) vis: self.1, 4 ( 0.00%) span: self.2, 4 ( 0.00%) expansion: self.3, . }) 32 ( 0.00%) } . } . . impl<'a> ToNameBinding<'a> for (Res, ty::Visibility, Span, LocalExpnId) { . fn to_name_binding(self, arenas: &'a ResolverArenas<'a>) -> &'a NameBinding<'a> { 31,620 ( 0.04%) arenas.alloc_name_binding(NameBinding { 21,080 ( 0.03%) kind: NameBindingKind::Res(self.0, false), . ambiguity: None, . vis: self.1, . span: self.2, . expansion: self.3, . }) . } . } . -- line 66 ---------------------------------------- -- line 76 ---------------------------------------- . expansion: self.3, . }) . } . } . . impl<'a> Resolver<'a> { . /// Defines `name` in namespace `ns` of module `parent` to be `def` if it is not yet defined; . /// otherwise, reports an error. 65,548 ( 0.08%) crate fn define(&mut self, parent: Module<'a>, ident: Ident, ns: Namespace, def: T) . where . T: ToNameBinding<'a>, . { 38,582 ( 0.05%) let binding = def.to_name_binding(self.arenas); . let key = self.new_key(ident, ns); 60,082 ( 0.08%) if let Err(old_binding) = self.try_define(parent, key, binding) { . self.report_conflict(parent, ident, ns, old_binding, &binding); . } 43,696 ( 0.05%) } . . /// Walks up the tree of definitions starting at `def_id`, . /// stopping at the first encountered module. . /// Parent block modules for arbitrary def-ids are not recorded for the local crate, . /// and are not preserved in metadata for foreign crates, so block modules are never . /// returned by this function. . /// . /// For the local crate ignoring block modules may be incorrect, so use this method with care. -- line 101 ---------------------------------------- -- line 103 ---------------------------------------- . /// For foreign crates block modules can be ignored without introducing observable differences, . /// moreover they has to be ignored right now because they are not kept in metadata. . /// Foreign parent modules are used for resolving names used by foreign macros with def-site . /// hygiene, therefore block module ignorability relies on macros with def-site hygiene and . /// block module parents being unreachable from other crates. . /// Reachable macros with block module parents exist due to `#[macro_export] macro_rules!`, . /// but they cannot use def-site hygiene, so the assumption holds . /// (). 2,795 ( 0.00%) pub fn get_nearest_non_block_module(&mut self, mut def_id: DefId) -> Module<'a> { . loop { 1,327 ( 0.00%) match self.get_module(def_id) { . Some(module) => return module, . None => { . def_id.index = . self.def_key(def_id).parent.expect("non-root `DefId` without parent") . } . } . } 1,720 ( 0.00%) } . 4 ( 0.00%) pub fn expect_module(&mut self, def_id: DefId) -> Module<'a> { 432 ( 0.00%) self.get_module(def_id).expect("argument `DefId` is not a module") 8 ( 0.00%) } . . /// If `def_id` refers to a module (in resolver's sense, i.e. a module item, crate root, enum, . /// or trait), then this function returns that module's resolver representation, otherwise it . /// returns `None`. 4,670 ( 0.01%) crate fn get_module(&mut self, def_id: DefId) -> Option> { . if let module @ Some(..) = self.module_map.get(&def_id) { . return module.copied(); . } . 219 ( 0.00%) if !def_id.is_local() { 1,314 ( 0.00%) let def_kind = self.cstore().def_kind(def_id); 438 ( 0.00%) match def_kind { . DefKind::Mod | DefKind::Enum | DefKind::Trait => { 1,062 ( 0.00%) let def_key = self.cstore().def_key(def_id); . let parent = def_key.parent.map(|index| { 865 ( 0.00%) self.get_nearest_non_block_module(DefId { index, krate: def_id.krate }) . }); 177 ( 0.00%) let name = if def_id.index == CRATE_DEF_INDEX { 16 ( 0.00%) self.cstore().crate_name(def_id.krate) . } else { 519 ( 0.00%) def_key.disambiguated_data.data.get_opt_name().expect("module without name") . }; . 1,416 ( 0.00%) Some(self.new_module( . parent, . ModuleKind::Def(def_kind, def_id, name), 1,239 ( 0.00%) self.cstore().module_expansion_untracked(def_id, &self.session), 1,062 ( 0.00%) self.cstore().get_span_untracked(def_id, &self.session), . // FIXME: Account for `#[no_implicit_prelude]` attributes. 519 ( 0.00%) parent.map_or(false, |module| module.no_implicit_prelude), . )) . } . _ => None, . } . } else { . None . } 3,736 ( 0.00%) } . 459 ( 0.00%) crate fn expn_def_scope(&mut self, expn_id: ExpnId) -> Module<'a> { 153 ( 0.00%) match expn_id.expn_data().macro_def_id { 114 ( 0.00%) Some(def_id) => self.macro_def_scope(def_id), 13 ( 0.00%) None => expn_id . .as_local() . .and_then(|expn_id| self.ast_transform_scopes.get(&expn_id)) 13 ( 0.00%) .unwrap_or(&self.graph_root), . } 306 ( 0.00%) } . 42 ( 0.00%) crate fn macro_def_scope(&mut self, def_id: DefId) -> Module<'a> { 42 ( 0.00%) if let Some(id) = def_id.as_local() { . self.local_macro_def_scopes[&id] . } else { 84 ( 0.00%) self.get_nearest_non_block_module(def_id) . } . } . . crate fn get_macro(&mut self, res: Res) -> Option> { 68 ( 0.00%) match res { 22 ( 0.00%) Res::Def(DefKind::Macro(..), def_id) => Some(self.get_macro_by_def_id(def_id)), . Res::NonMacroAttr(_) => Some(self.non_macro_attr.clone()), . _ => None, . } . } . 72 ( 0.00%) crate fn get_macro_by_def_id(&mut self, def_id: DefId) -> Lrc { . if let Some(ext) = self.macro_map.get(&def_id) { 4 ( 0.00%) return ext.clone(); . } . 45 ( 0.00%) let ext = Lrc::new(match self.cstore().load_macro_untracked(def_id, &self.session) { 55 ( 0.00%) LoadedMacro::MacroDef(item, edition) => self.compile_macro(&item, edition), . LoadedMacro::ProcMacro(ext) => ext, . }); . . self.macro_map.insert(def_id, ext.clone()); . ext 63 ( 0.00%) } . . crate fn build_reduced_graph( . &mut self, . fragment: &AstFragment, . parent_scope: ParentScope<'a>, . ) -> MacroRulesScopeRef<'a> { 20 ( 0.00%) collect_definitions(self, fragment, parent_scope.expansion); 35 ( 0.00%) let mut visitor = BuildReducedGraphVisitor { r: self, parent_scope }; 10 ( 0.00%) fragment.visit_with(&mut visitor); 5 ( 0.00%) visitor.parent_scope.macro_rules . } . . crate fn build_reduced_graph_external(&mut self, module: Module<'a>) { 43,864 ( 0.06%) for child in self.cstore().module_children_untracked(module.def_id(), self.session) { . let parent_scope = ParentScope::module(module, self); 54,490 ( 0.07%) BuildReducedGraphVisitor { r: self, parent_scope } 43,592 ( 0.05%) .build_reduced_graph_for_external_crate_res(child); . } . } . } . . struct BuildReducedGraphVisitor<'a, 'b> { . r: &'b mut Resolver<'a>, . parent_scope: ParentScope<'a>, . } . . impl<'a> AsMut> for BuildReducedGraphVisitor<'a, '_> { . fn as_mut(&mut self) -> &mut Resolver<'a> { 2 ( 0.00%) self.r . } . } . . impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> { . fn resolve_visibility(&mut self, vis: &ast::Visibility) -> ty::Visibility { 66 ( 0.00%) self.resolve_visibility_speculative(vis, false).unwrap_or_else(|err| { . self.r.report_vis_error(err); . ty::Visibility::Public . }) . } . 160 ( 0.00%) fn resolve_visibility_speculative<'ast>( . &mut self, . vis: &'ast ast::Visibility, . speculative: bool, . ) -> Result> { 16 ( 0.00%) let parent_scope = &self.parent_scope; 80 ( 0.00%) match vis.kind { 6 ( 0.00%) ast::VisibilityKind::Public => Ok(ty::Visibility::Public), . ast::VisibilityKind::Crate(..) => { . Ok(ty::Visibility::Restricted(DefId::local(CRATE_DEF_INDEX))) . } . ast::VisibilityKind::Inherited => { 151 ( 0.00%) Ok(match self.parent_scope.module.kind { . // Any inherited visibility resolved directly inside an enum or trait . // (i.e. variants, fields, and trait items) inherits from the visibility . // of the enum or trait. 6 ( 0.00%) ModuleKind::Def(DefKind::Enum | DefKind::Trait, def_id, _) => { 15 ( 0.00%) self.r.visibilities[&def_id.expect_local()] . } . // Otherwise, the visibility is restricted to the nearest parent `mod` item. 20 ( 0.00%) _ => ty::Visibility::Restricted(self.parent_scope.module.nearest_parent_mod()), . }) . } . ast::VisibilityKind::Restricted { ref path, id, .. } => { . // For visibilities we are not ready to provide correct implementation of "uniform . // paths" right now, so on 2018 edition we only allow module-relative paths for now. . // On 2015 edition visibilities are resolved as crate-relative by default, . // so we are prepending a root segment if necessary. . let ident = path.segments.get(0).expect("empty path in visibility").ident; -- line 272 ---------------------------------------- -- line 326 ---------------------------------------- . } . PathResult::Failed { span, label, suggestion, .. } => { . Err(VisResolutionError::FailedToResolve(span, label, suggestion)) . } . PathResult::Indeterminate => Err(VisResolutionError::Indeterminate(path.span)), . } . } . } 128 ( 0.00%) } . . fn insert_field_names_local(&mut self, def_id: DefId, vdata: &ast::VariantData) { 6 ( 0.00%) let field_names = vdata . .fields() . .iter() . .map(|field| respan(field.span, field.ident.map_or(kw::Empty, |ident| ident.name))) . .collect(); . self.insert_field_names(def_id, field_names); . } . . fn insert_field_names(&mut self, def_id: DefId, field_names: Vec>) { -- line 345 ---------------------------------------- -- line 346 ---------------------------------------- . self.r.field_names.insert(def_id, field_names); . } . . fn block_needs_anonymous_module(&mut self, block: &Block) -> bool { . // If any statements are items, we need to create an anonymous module . block . .stmts . .iter() 18 ( 0.00%) .any(|statement| matches!(statement.kind, StmtKind::Item(_) | StmtKind::MacCall(_))) . } . . // Add an import to the current module. 13 ( 0.00%) fn add_import( . &mut self, . module_path: Vec, . kind: ImportKind<'a>, . span: Span, . id: NodeId, . item: &ast::Item, . root_span: Span, . root_id: NodeId, . vis: ty::Visibility, . ) { 3 ( 0.00%) let current_module = self.parent_scope.module; 28 ( 0.00%) let import = self.r.arenas.alloc_import(Import { . kind, . parent_scope: self.parent_scope, 4 ( 0.00%) module_path, . imported_module: Cell::new(None), . span, . id, 2 ( 0.00%) use_span: item.span, 3 ( 0.00%) use_span_with_attributes: item.span_with_attributes(), . has_attributes: !item.attrs.is_empty(), . root_span, . root_id, . vis: Cell::new(vis), . used: Cell::new(false), . }); . . self.r.indeterminate_imports.push(import); 7 ( 0.00%) match import.kind { . // Don't add unresolved underscore imports to modules . ImportKind::Single { target: Ident { name: kw::Underscore, .. }, .. } => {} . ImportKind::Single { target, type_ns_only, .. } => { . self.r.per_ns(|this, ns| { . if !type_ns_only || ns == TypeNS { . let key = this.new_key(target, ns); . let mut resolution = this.resolution(current_module, key).borrow_mut(); . resolution.add_single_import(import); -- line 395 ---------------------------------------- -- line 397 ---------------------------------------- . }); . } . // We don't add prelude imports to the globs since they only affect lexical scopes, . // which are not relevant to import resolution. . ImportKind::Glob { is_prelude: true, .. } => {} . ImportKind::Glob { .. } => current_module.globs.borrow_mut().push(import), . _ => unreachable!(), . } 8 ( 0.00%) } . 9 ( 0.00%) fn build_reduced_graph_for_use_tree( . &mut self, . // This particular use tree . use_tree: &ast::UseTree, . id: NodeId, . parent_prefix: &[Segment], . nested: bool, . // The whole `use` item . item: &Item, -- line 415 ---------------------------------------- -- line 426 ---------------------------------------- . .cloned() . .chain(use_tree.prefix.segments.iter().map(|seg| seg.into())) . .peekable(); . . // On 2015 edition imports are resolved as crate-relative by default, . // so prefixes are prepended with crate root segment if necessary. . // The root is prepended lazily, when the first non-empty prefix or terminating glob . // appears, so imports in braced groups can have roots prepended independently. 1 ( 0.00%) let is_glob = matches!(use_tree.kind, ast::UseTreeKind::Glob); 1 ( 0.00%) let crate_root = match prefix_iter.peek() { 11 ( 0.00%) Some(seg) if !seg.ident.is_path_segment_keyword() && seg.ident.span.rust_2015() => { . Some(seg.ident.span.ctxt()) . } . None if is_glob && use_tree.span.rust_2015() => Some(use_tree.span.ctxt()), . _ => None, . } . .map(|ctxt| { . Segment::from_ident(Ident::new( . kw::PathRoot, . use_tree.prefix.span.shrink_to_lo().with_ctxt(ctxt), . )) . }); . 5 ( 0.00%) let prefix = crate_root.into_iter().chain(prefix_iter).collect::>(); . debug!("build_reduced_graph_for_use_tree: prefix={:?}", prefix); . . let empty_for_self = |prefix: &[Segment]| { . prefix.is_empty() || prefix.len() == 1 && prefix[0].ident.name == kw::PathRoot . }; 6 ( 0.00%) match use_tree.kind { . ast::UseTreeKind::Simple(rename, id1, id2) => { . let mut ident = use_tree.ident(); . let mut module_path = prefix; . let mut source = module_path.pop().unwrap(); . let mut type_ns_only = false; . . if nested { . // Correctly handle `self` -- line 463 ---------------------------------------- -- line 574 ---------------------------------------- . item, . root_span, . item.id, . vis, . ); . } . ast::UseTreeKind::Glob => { . let kind = ImportKind::Glob { 5 ( 0.00%) is_prelude: self.r.session.contains_name(&item.attrs, sym::prelude_import), . max_vis: Cell::new(ty::Visibility::Invisible), . }; 15 ( 0.00%) self.add_import(prefix, kind, use_tree.span, id, item, root_span, item.id, vis); . } . ast::UseTreeKind::Nested(ref items) => { . // Ensure there is at most one `self` in the list . let self_spans = items . .iter() . .filter_map(|&(ref use_tree, _)| { . if let ast::UseTreeKind::Simple(..) = use_tree.kind { . if use_tree.ident().name == kw::SelfLower { -- line 593 ---------------------------------------- -- line 642 ---------------------------------------- . // The whole `use` item . item, . ty::Visibility::Invisible, . root_span, . ); . } . } . } 8 ( 0.00%) } . . /// Constructs the reduced graph for one item. . fn build_reduced_graph_for_item(&mut self, item: &'b Item) { . let parent_scope = &self.parent_scope; . let parent = parent_scope.module; 22 ( 0.00%) let expansion = parent_scope.expansion; 33 ( 0.00%) let ident = item.ident; 22 ( 0.00%) let sp = item.span; 22 ( 0.00%) let vis = self.resolve_visibility(&item.vis); 33 ( 0.00%) let local_def_id = self.r.local_def_id(item.id); . let def_id = local_def_id.to_def_id(); . . self.r.visibilities.insert(local_def_id, vis); . 64 ( 0.00%) match item.kind { 1 ( 0.00%) ItemKind::Use(ref use_tree) => { 11 ( 0.00%) self.build_reduced_graph_for_use_tree( . // This particular use tree . use_tree, 1 ( 0.00%) item.id, . &[], . false, . // The whole `use` item . item, . vis, . use_tree.span, . ); . } . 4 ( 0.00%) ItemKind::ExternCrate(orig_name) => { . self.build_reduced_graph_for_extern_crate( . orig_name, . item, . local_def_id, . vis, . parent, . ); . } -- line 688 ---------------------------------------- -- line 708 ---------------------------------------- . self.r.define(parent, ident, ValueNS, (res, vis, sp, expansion)); . } . ItemKind::Const(..) => { . let res = Res::Def(DefKind::Const, def_id); . self.r.define(parent, ident, ValueNS, (res, vis, sp, expansion)); . } . ItemKind::Fn(..) => { . let res = Res::Def(DefKind::Fn, def_id); 42 ( 0.00%) self.r.define(parent, ident, ValueNS, (res, vis, sp, expansion)); . . // Functions introducing procedural macros reserve a slot . // in the macro namespace as well (see #52225). 8 ( 0.00%) self.define_macro(item); . } . . // These items live in the type namespace. . ItemKind::TyAlias(..) => { . let res = Res::Def(DefKind::TyAlias, def_id); . self.r.define(parent, ident, TypeNS, (res, vis, sp, expansion)); . } . . ItemKind::Enum(_, _) => { 8 ( 0.00%) let module = self.r.new_module( . Some(parent), . ModuleKind::Def(DefKind::Enum, def_id, ident.name), . expansion.to_expn_id(), . item.span, 1 ( 0.00%) parent.no_implicit_prelude, . ); . self.r.define(parent, ident, TypeNS, (module, vis, sp, expansion)); . self.parent_scope.module = module; . } . . ItemKind::TraitAlias(..) => { . let res = Res::Def(DefKind::TraitAlias, def_id); . self.r.define(parent, ident, TypeNS, (res, vis, sp, expansion)); -- line 743 ---------------------------------------- -- line 825 ---------------------------------------- . fn build_reduced_graph_for_extern_crate( . &mut self, . orig_name: Option, . item: &Item, . local_def_id: LocalDefId, . vis: ty::Visibility, . parent: Module<'a>, . ) { 16 ( 0.00%) let ident = item.ident; 8 ( 0.00%) let sp = item.span; 8 ( 0.00%) let parent_scope = self.parent_scope; . let expansion = parent_scope.expansion; . 28 ( 0.00%) let (used, module, binding) = if orig_name.is_none() && ident.name == kw::SelfLower { . self.r . .session . .struct_span_err(item.span, "`extern crate self;` requires renaming") . .span_suggestion( . item.span, . "rename the `self` crate to be able to import it", . "extern crate self as name;".into(), . Applicability::HasPlaceholders, . ) . .emit(); . return; . } else if orig_name == Some(kw::SelfLower) { . Some(self.r.graph_root) . } else { 24 ( 0.00%) self.r.crate_loader.process_extern_crate(item, &self.r.definitions, local_def_id).map( 4 ( 0.00%) |crate_id| { 4 ( 0.00%) self.r.extern_crate_map.insert(local_def_id, crate_id); 24 ( 0.00%) self.r.expect_module(crate_id.as_def_id()) . }, . ) . } . .map(|module| { . let used = self.process_macro_use_imports(item, module); . let binding = 44 ( 0.00%) (module, ty::Visibility::Public, sp, expansion).to_name_binding(self.r.arenas); . (used, Some(ModuleOrUniformRoot::Module(module)), binding) . }) 8 ( 0.00%) .unwrap_or((true, None, self.r.dummy_binding)); 124 ( 0.00%) let import = self.r.arenas.alloc_import(Import { . kind: ImportKind::ExternCrate { source: orig_name, target: ident }, 4 ( 0.00%) root_id: item.id, . id: item.id, 24 ( 0.00%) parent_scope: self.parent_scope, . imported_module: Cell::new(module), . has_attributes: !item.attrs.is_empty(), 8 ( 0.00%) use_span_with_attributes: item.span_with_attributes(), 4 ( 0.00%) use_span: item.span, . root_span: item.span, . span: item.span, . module_path: Vec::new(), . vis: Cell::new(vis), . used: Cell::new(used), . }); 4 ( 0.00%) self.r.potentially_unused_imports.push(import); 20 ( 0.00%) let imported_binding = self.r.import(binding, import); 8 ( 0.00%) if ptr::eq(parent, self.r.graph_root) { 32 ( 0.00%) if let Some(entry) = self.r.extern_prelude.get(&ident.normalize_to_macros_2_0()) { . if expansion != LocalExpnId::ROOT . && orig_name.is_some() . && entry.extern_crate_item.is_none() . { . let msg = "macro-expanded `extern crate` items cannot \ . shadow names passed with `--extern`"; . self.r.session.span_err(item.span, msg); . } . } 18 ( 0.00%) let entry = self.r.extern_prelude.entry(ident.normalize_to_macros_2_0()).or_insert( . ExternPreludeEntry { extern_crate_item: None, introduced_by_item: true }, . ); 3 ( 0.00%) entry.extern_crate_item = Some(imported_binding); 3 ( 0.00%) if orig_name.is_some() { . entry.introduced_by_item = true; . } . } 31 ( 0.00%) self.r.define(parent, ident, TypeNS, imported_binding); . } . . /// Constructs the reduced graph for one foreign item. . fn build_reduced_graph_for_foreign_item(&mut self, item: &ForeignItem) { . let local_def_id = self.r.local_def_id(item.id); . let def_id = local_def_id.to_def_id(); . let (def_kind, ns) = match item.kind { . ForeignItemKind::Fn(..) => (DefKind::Fn, ValueNS), -- line 911 ---------------------------------------- -- line 918 ---------------------------------------- . let vis = self.resolve_visibility(&item.vis); . let res = Res::Def(def_kind, def_id); . self.r.define(parent, item.ident, ns, (res, vis, item.span, expansion)); . self.r.visibilities.insert(local_def_id, vis); . } . . fn build_reduced_graph_for_block(&mut self, block: &Block) { . let parent = self.parent_scope.module; 9 ( 0.00%) let expansion = self.parent_scope.expansion; . if self.block_needs_anonymous_module(block) { 3 ( 0.00%) let module = self.r.new_module( . Some(parent), 2 ( 0.00%) ModuleKind::Block(block.id), . expansion.to_expn_id(), . block.span, 1 ( 0.00%) parent.no_implicit_prelude, . ); . self.r.block_map.insert(block.id, module); 1 ( 0.00%) self.parent_scope.module = module; // Descend into the block. . } . } . . /// Builds the reduced graph for a single item in an external crate. 43,592 ( 0.05%) fn build_reduced_graph_for_external_crate_res(&mut self, child: ModChild) { 5,449 ( 0.01%) let parent = self.parent_scope.module; 32,694 ( 0.04%) let ModChild { ident, res, vis, span } = child; 27,245 ( 0.03%) let res = res.expect_non_local(); 10,898 ( 0.01%) let expansion = self.parent_scope.expansion; . // Record primary definitions. 27,245 ( 0.03%) match res { . Res::Def(DefKind::Mod | DefKind::Enum | DefKind::Trait, def_id) => { 187 ( 0.00%) let module = self.r.expect_module(def_id); 2,618 ( 0.00%) self.r.define(parent, ident, TypeNS, (module, vis, span, expansion)); . } . Res::Def( . DefKind::Struct . | DefKind::Union . | DefKind::Variant . | DefKind::TyAlias . | DefKind::ForeignTy . | DefKind::OpaqueTy . | DefKind::TraitAlias . | DefKind::AssocTy, . _, . ) . | Res::PrimTy(..) 8,640 ( 0.01%) | Res::ToolMod => self.r.define(parent, ident, TypeNS, (res, vis, span, expansion)), . Res::Def( . DefKind::Fn . | DefKind::AssocFn . | DefKind::Static . | DefKind::Const . | DefKind::AssocConst . | DefKind::Ctor(..), . _, 140,998 ( 0.18%) ) => self.r.define(parent, ident, ValueNS, (res, vis, span, expansion)), . Res::Def(DefKind::Macro(..), _) | Res::NonMacroAttr(..) => { 2,240 ( 0.00%) self.r.define(parent, ident, MacroNS, (res, vis, span, expansion)) . } . Res::Def( . DefKind::TyParam . | DefKind::ConstParam . | DefKind::ExternCrate . | DefKind::Use . | DefKind::ForeignMod . | DefKind::AnonConst -- line 983 ---------------------------------------- -- line 992 ---------------------------------------- . ) . | Res::Local(..) . | Res::SelfTy(..) . | Res::SelfCtor(..) . | Res::Err => bug!("unexpected resolution: {:?}", res), . } . // Record some extra data for better diagnostics. . let cstore = self.r.cstore(); 53,083 ( 0.07%) match res { 612 ( 0.00%) Res::Def(DefKind::Struct, def_id) => { . let field_names = 1,224 ( 0.00%) cstore.struct_field_names_untracked(def_id, self.r.session).collect(); 1,428 ( 0.00%) let ctor = cstore.ctor_def_id_and_kind_untracked(def_id); 408 ( 0.00%) if let Some((ctor_def_id, ctor_kind)) = ctor { . let ctor_res = Res::Def(DefKind::Ctor(CtorOf::Struct, ctor_kind), ctor_def_id); 20 ( 0.00%) let ctor_vis = cstore.visibility_untracked(ctor_def_id); . let field_visibilities = 16 ( 0.00%) cstore.struct_field_visibilities_untracked(def_id).collect(); . self.r . .struct_constructors . .insert(def_id, (ctor_res, ctor_vis, field_visibilities)); . } . self.insert_field_names(def_id, field_names); . } 6 ( 0.00%) Res::Def(DefKind::Union, def_id) => { . let field_names = 14 ( 0.00%) cstore.struct_field_names_untracked(def_id, self.r.session).collect(); . self.insert_field_names(def_id, field_names); . } 216 ( 0.00%) Res::Def(DefKind::AssocFn, def_id) => { 648 ( 0.00%) if cstore.fn_has_self_parameter_untracked(def_id) { . self.r.has_self.insert(def_id); . } . } . _ => {} . } 42,744 ( 0.05%) } . 272 ( 0.00%) fn add_macro_use_binding( . &mut self, . name: Symbol, . binding: &'a NameBinding<'a>, . span: Span, . allow_shadowing: bool, . ) { 136 ( 0.00%) if self.r.macro_use_prelude.insert(name, binding).is_some() && !allow_shadowing { . let msg = format!("`{}` is already in scope", name); . let note = . "macro-expanded `#[macro_use]`s may not shadow existing macros (see RFC 1560)"; . self.r.session.struct_span_err(span, &msg).note(note).emit(); . } 204 ( 0.00%) } . . /// Returns `true` if we should consider the underlying `extern crate` to be used. . fn process_macro_use_imports(&mut self, item: &Item, module: Module<'a>) -> bool { . let mut import_all = None; . let mut single_imports = Vec::new(); . for attr in &item.attrs { 3 ( 0.00%) if attr.has_name(sym::macro_use) { 4 ( 0.00%) if self.parent_scope.module.parent.is_some() { . struct_span_err!( . self.r.session, . item.span, . E0468, . "an `extern crate` loading macros must be at the crate root" . ) . .emit(); . } 8 ( 0.00%) if let ItemKind::ExternCrate(Some(orig_name)) = item.kind { . if orig_name == kw::SelfLower { . self.r . .session . .struct_span_err( . attr.span, . "`#[macro_use]` is not supported on `extern crate self`", . ) . .emit(); . } . } . let ill_formed = 6 ( 0.00%) |span| struct_span_err!(self.r.session, span, E0466, "bad macro import").emit(); 10 ( 0.00%) match attr.meta() { 44 ( 0.00%) Some(meta) => match meta.kind { . MetaItemKind::Word => { 4 ( 0.00%) import_all = Some(meta.span); . break; . } . MetaItemKind::List(nested_metas) => { . for nested_meta in nested_metas { . match nested_meta.ident() { . Some(ident) if nested_meta.is_word() => { . single_imports.push(ident) . } . _ => ill_formed(nested_meta.span()), . } . } . } . MetaItemKind::NameValue(..) => ill_formed(meta.span), 4 ( 0.00%) }, . None => ill_formed(attr.span), . } . } . } . . let macro_use_import = |this: &Self, span| { 40 ( 0.00%) this.r.arenas.alloc_import(Import { . kind: ImportKind::MacroUse, 2 ( 0.00%) root_id: item.id, . id: item.id, 12 ( 0.00%) parent_scope: this.parent_scope, . imported_module: Cell::new(Some(ModuleOrUniformRoot::Module(module))), 2 ( 0.00%) use_span_with_attributes: item.span_with_attributes(), . has_attributes: !item.attrs.is_empty(), 2 ( 0.00%) use_span: item.span, . root_span: span, . span, . module_path: Vec::new(), . vis: Cell::new(ty::Visibility::Restricted(DefId::local(CRATE_DEF_INDEX))), . used: Cell::new(false), . }) . }; . 16 ( 0.00%) let allow_shadowing = self.parent_scope.expansion == LocalExpnId::ROOT; 10 ( 0.00%) if let Some(span) = import_all { . let import = macro_use_import(self, span); 2 ( 0.00%) self.r.potentially_unused_imports.push(import); 18 ( 0.00%) module.for_each_child(self, |this, ident, ns, binding| { 130 ( 0.00%) if ns == MacroNS { 102 ( 0.00%) let imported_binding = this.r.import(binding, import); 272 ( 0.00%) this.add_macro_use_binding(ident.name, imported_binding, span, allow_shadowing); . } . }); . } else { . for ident in single_imports.iter().cloned() { . let result = self.r.resolve_ident_in_module( . ModuleOrUniformRoot::Module(module), . ident, . MacroNS, -- line 1129 ---------------------------------------- -- line 1146 ---------------------------------------- . .emit(); . } . } . } . import_all.is_some() || !single_imports.is_empty() . } . . /// Returns `true` if this attribute list contains `macro_use`. 5 ( 0.00%) fn contains_macro_use(&mut self, attrs: &[ast::Attribute]) -> bool { . for attr in attrs { 4 ( 0.00%) if attr.has_name(sym::macro_escape) { . let msg = "`#[macro_escape]` is a deprecated synonym for `#[macro_use]`"; . let mut err = self.r.session.struct_span_warn(attr.span, msg); . if let ast::AttrStyle::Inner = attr.style { . err.help("try an outer attribute: `#[macro_use]`").emit(); . } else { . err.emit(); . } . } else if !attr.has_name(sym::macro_use) { -- line 1164 ---------------------------------------- -- line 1167 ---------------------------------------- . . if !attr.is_word() { . self.r.session.span_err(attr.span, "arguments to `macro_use` are not allowed here"); . } . return true; . } . . false 7 ( 0.00%) } . . fn visit_invoc(&mut self, id: NodeId) -> LocalExpnId { 12 ( 0.00%) let invoc_id = id.placeholder_to_expn_id(); 4 ( 0.00%) let old_parent_scope = self.r.invocation_parent_scopes.insert(invoc_id, self.parent_scope); 4 ( 0.00%) assert!(old_parent_scope.is_none(), "invocation data is reset for an invocation"); . invoc_id . } . . /// Visit invocation in context in which it can emit a named item (possibly `macro_rules`) . /// directly into its parent scope's module. 24 ( 0.00%) fn visit_invoc_in_module(&mut self, id: NodeId) -> MacroRulesScopeRef<'a> { . let invoc_id = self.visit_invoc(id); 4 ( 0.00%) self.parent_scope.module.unexpanded_invocations.borrow_mut().insert(invoc_id); 12 ( 0.00%) self.r.arenas.alloc_macro_rules_scope(MacroRulesScope::Invocation(invoc_id)) 24 ( 0.00%) } . . fn proc_macro_stub(&self, item: &ast::Item) -> Option<(MacroKind, Ident, Span)> { 12 ( 0.00%) if self.r.session.contains_name(&item.attrs, sym::proc_macro) { . return Some((MacroKind::Bang, item.ident, item.span)); 10 ( 0.00%) } else if self.r.session.contains_name(&item.attrs, sym::proc_macro_attribute) { . return Some((MacroKind::Attr, item.ident, item.span)); 10 ( 0.00%) } else if let Some(attr) = self.r.session.find_by_name(&item.attrs, sym::proc_macro_derive) . { . if let Some(nested_meta) = attr.meta_item_list().and_then(|list| list.get(0).cloned()) { . if let Some(ident) = nested_meta.ident() { . return Some((MacroKind::Derive, ident, ident.span)); . } . } . } . None -- line 1205 ---------------------------------------- -- line 1209 ---------------------------------------- . // Macro uses will remove items from this set, and the remaining . // items will be reported as `unused_macros`. . fn insert_unused_macro(&mut self, ident: Ident, def_id: LocalDefId, node_id: NodeId) { . if !ident.as_str().starts_with('_') { . self.r.unused_macros.insert(def_id, (node_id, ident)); . } . } . 18 ( 0.00%) fn define_macro(&mut self, item: &ast::Item) -> MacroRulesScopeRef<'a> { 8 ( 0.00%) let parent_scope = self.parent_scope; . let expansion = parent_scope.expansion; 8 ( 0.00%) let def_id = self.r.local_def_id(item.id); 8 ( 0.00%) let (ext, ident, span, macro_rules) = match &item.kind { . ItemKind::MacroDef(def) => { . let ext = Lrc::new(self.r.compile_macro(item, self.r.session.edition())); . (ext, item.ident, item.span, def.macro_rules) . } . ItemKind::Fn(..) => match self.proc_macro_stub(item) { . Some((macro_kind, ident, span)) => { . self.r.proc_macro_stubs.insert(def_id); . (self.r.dummy_ext(macro_kind), ident, span, false) -- line 1229 ---------------------------------------- -- line 1276 ---------------------------------------- . }; . if vis != ty::Visibility::Public { . self.insert_unused_macro(ident, def_id, item.id); . } . self.r.define(module, ident, MacroNS, (res, vis, span, expansion)); . self.r.visibilities.insert(def_id, vis); . self.parent_scope.macro_rules . } 16 ( 0.00%) } . } . . macro_rules! method { . ($visit:ident: $ty:ty, $invoc:path, $walk:ident) => { . fn $visit(&mut self, node: &'b $ty) { 160 ( 0.00%) if let $invoc(..) = node.kind { . self.visit_invoc(node.id); . } else { 191 ( 0.00%) visit::$walk(self, node); . } . } . }; . } . . impl<'a, 'b> Visitor<'b> for BuildReducedGraphVisitor<'a, 'b> { . method!(visit_expr: ast::Expr, ast::ExprKind::MacCall, walk_expr); . method!(visit_pat: ast::Pat, ast::PatKind::MacCall, walk_pat); . method!(visit_ty: ast::Ty, ast::TyKind::MacCall, walk_ty); . 135 ( 0.00%) fn visit_item(&mut self, item: &'b Item) { 15 ( 0.00%) let orig_module_scope = self.parent_scope.module; 82 ( 0.00%) self.parent_scope.macro_rules = match item.kind { . ItemKind::MacroDef(..) => { . let macro_rules_scope = self.define_macro(item); . visit::walk_item(self, item); . macro_rules_scope . } . ItemKind::MacCall(..) => { 12 ( 0.00%) let macro_rules_scope = self.visit_invoc_in_module(item.id); . visit::walk_item(self, item); . macro_rules_scope . } . _ => { 22 ( 0.00%) let orig_macro_rules_scope = self.parent_scope.macro_rules; . self.build_reduced_graph_for_item(item); 33 ( 0.00%) visit::walk_item(self, item); 22 ( 0.00%) match item.kind { . ItemKind::Mod(..) if self.contains_macro_use(&item.attrs) => { . self.parent_scope.macro_rules . } . _ => orig_macro_rules_scope, . } . } . }; 15 ( 0.00%) self.parent_scope.module = orig_module_scope; 120 ( 0.00%) } . . fn visit_stmt(&mut self, stmt: &'b ast::Stmt) { 22 ( 0.00%) if let ast::StmtKind::MacCall(..) = stmt.kind { . self.parent_scope.macro_rules = self.visit_invoc_in_module(stmt.id); . } else { 33 ( 0.00%) visit::walk_stmt(self, stmt); . } . } . . fn visit_foreign_item(&mut self, foreign_item: &'b ForeignItem) { . if let ForeignItemKind::MacCall(_) = foreign_item.kind { . self.visit_invoc_in_module(foreign_item.id); . return; . } . . self.build_reduced_graph_for_foreign_item(foreign_item); . visit::walk_foreign_item(self, foreign_item); . } . 81 ( 0.00%) fn visit_block(&mut self, block: &'b Block) { 9 ( 0.00%) let orig_current_module = self.parent_scope.module; 18 ( 0.00%) let orig_current_macro_rules_scope = self.parent_scope.macro_rules; . self.build_reduced_graph_for_block(block); . visit::walk_block(self, block); 18 ( 0.00%) self.parent_scope.module = orig_current_module; 9 ( 0.00%) self.parent_scope.macro_rules = orig_current_macro_rules_scope; 72 ( 0.00%) } . 20 ( 0.00%) fn visit_assoc_item(&mut self, item: &'b AssocItem, ctxt: AssocCtxt) { 4 ( 0.00%) if let AssocItemKind::MacCall(_) = item.kind { . match ctxt { . AssocCtxt::Trait => { . self.visit_invoc_in_module(item.id); . } . AssocCtxt::Impl => { . self.visit_invoc(item.id); . } . } . return; . } . 4 ( 0.00%) let vis = self.resolve_visibility(&item.vis); 6 ( 0.00%) let local_def_id = self.r.local_def_id(item.id); . let def_id = local_def_id.to_def_id(); . 12 ( 0.00%) if !(ctxt == AssocCtxt::Impl . && matches!(item.vis.kind, ast::VisibilityKind::Inherited) 2 ( 0.00%) && self . .r . .trait_impl_items 2 ( 0.00%) .contains(&ty::DefIdTree::parent(&*self.r, def_id).unwrap().expect_local())) . { . // Trait impl item visibility is inherited from its trait when not specified . // explicitly. In that case we cannot determine it here in early resolve, . // so we leave a hole in the visibility table to be filled later. . self.r.visibilities.insert(local_def_id, vis); . } . 4 ( 0.00%) if ctxt == AssocCtxt::Trait { . let (def_kind, ns) = match item.kind { . AssocItemKind::Const(..) => (DefKind::AssocConst, ValueNS), . AssocItemKind::Fn(box Fn { ref sig, .. }) => { . if sig.decl.has_self() { . self.r.has_self.insert(def_id); . } . (DefKind::AssocFn, ValueNS) . } -- line 1397 ---------------------------------------- -- line 1400 ---------------------------------------- . }; . . let parent = self.parent_scope.module; . let expansion = self.parent_scope.expansion; . let res = Res::Def(def_kind, def_id); . self.r.define(parent, item.ident, ns, (res, vis, item.span, expansion)); . } . 8 ( 0.00%) visit::walk_assoc_item(self, item, ctxt); 16 ( 0.00%) } . 192 ( 0.00%) fn visit_attribute(&mut self, attr: &'b ast::Attribute) { 180 ( 0.00%) if !attr.is_doc_comment() && attr::is_builtin_attr(attr) { 13 ( 0.00%) self.r . .builtin_attrs 156 ( 0.00%) .push((attr.get_normal_item().path.segments[0].ident, self.parent_scope)); . } 224 ( 0.00%) visit::walk_attribute(self, attr); . } . . fn visit_arm(&mut self, arm: &'b ast::Arm) { 24 ( 0.00%) if arm.is_placeholder { . self.visit_invoc(arm.id); . } else { 12 ( 0.00%) visit::walk_arm(self, arm); . } . } . . fn visit_expr_field(&mut self, f: &'b ast::ExprField) { . if f.is_placeholder { . self.visit_invoc(f.id); . } else { . visit::walk_expr_field(self, f); -- line 1432 ---------------------------------------- -- line 1445 ---------------------------------------- . if param.is_placeholder { . self.visit_invoc(param.id); . } else { . visit::walk_generic_param(self, param); . } . } . . fn visit_param(&mut self, p: &'b ast::Param) { 30 ( 0.00%) if p.is_placeholder { . self.visit_invoc(p.id); . } else { 15 ( 0.00%) visit::walk_param(self, p); . } . } . . fn visit_field_def(&mut self, sf: &'b ast::FieldDef) { . if sf.is_placeholder { . self.visit_invoc(sf.id); . } else { . let vis = self.resolve_visibility(&sf.vis); . self.r.visibilities.insert(self.r.local_def_id(sf.id), vis); . visit::walk_field_def(self, sf); . } . } . . // Constructs the reduced graph for one variant. Variants exist in the . // type and value namespaces. 27 ( 0.00%) fn visit_variant(&mut self, variant: &'b ast::Variant) { 6 ( 0.00%) if variant.is_placeholder { . self.visit_invoc_in_module(variant.id); . return; . } . 3 ( 0.00%) let parent = self.parent_scope.module; 6 ( 0.00%) let expn_id = self.parent_scope.expansion; 9 ( 0.00%) let ident = variant.ident; . . // Define a name in the type namespace. 6 ( 0.00%) let def_id = self.r.local_def_id(variant.id); . let res = Res::Def(DefKind::Variant, def_id.to_def_id()); 6 ( 0.00%) let vis = self.resolve_visibility(&variant.vis); 63 ( 0.00%) self.r.define(parent, ident, TypeNS, (res, vis, variant.span, expn_id)); . self.r.visibilities.insert(def_id, vis); . . // If the variant is marked as non_exhaustive then lower the visibility to within the crate. 18 ( 0.00%) let ctor_vis = if vis == ty::Visibility::Public 12 ( 0.00%) && self.r.session.contains_name(&variant.attrs, sym::non_exhaustive) . { . ty::Visibility::Restricted(DefId::local(CRATE_DEF_INDEX)) . } else { . vis . }; . . // Define a constructor name in the value namespace. . // 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_node_id = variant.data.ctor_id().unwrap_or(variant.id); . let ctor_def_id = self.r.local_def_id(ctor_node_id); 6 ( 0.00%) let ctor_kind = CtorKind::from_ast(&variant.data); . let ctor_res = Res::Def(DefKind::Ctor(CtorOf::Variant, ctor_kind), ctor_def_id.to_def_id()); 57 ( 0.00%) self.r.define(parent, ident, ValueNS, (ctor_res, ctor_vis, variant.span, expn_id)); 3 ( 0.00%) if ctor_def_id != def_id { . self.r.visibilities.insert(ctor_def_id, ctor_vis); . } . // Record field names for error reporting. . self.insert_field_names_local(ctor_def_id.to_def_id(), &variant.data); . 30 ( 0.00%) visit::walk_variant(self, variant); . } . . fn visit_crate(&mut self, krate: &'b ast::Crate) { 2 ( 0.00%) if krate.is_placeholder { . self.visit_invoc_in_module(krate.id); . } else { . visit::walk_crate(self, krate); 11 ( 0.00%) self.contains_macro_use(&krate.attrs); . } . } . } 14,870 ( 0.02%) -------------------------------------------------------------------------------- -- 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. . /// 2,287 ( 0.00%) #[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 { 11 ( 0.00%) base_or_index: u32, . len_or_tag: u16, 16 ( 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 { 22,386 ( 0.03%) if lo > hi { . std::mem::swap(&mut lo, &mut hi); . } . 44,772 ( 0.06%) let (base, len, ctxt2) = (lo.0, hi.0 - lo.0, ctxt.as_u32()); . 182,014 ( 0.23%) 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 = 10 ( 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 } . } 66,605 ( 0.08%) } . . #[inline] . pub fn data(self) -> SpanData { . let data = self.data_untracked(); . 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 { 56,380 ( 0.07%) 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), 54,938 ( 0.07%) 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); . let index = self.base_or_index; . with_span_interner(|interner| interner.spans[index as usize]) . } 3,907 ( 0.00%) } . } . 4 ( 0.00%) #[derive(Default)] . pub struct SpanInterner { . spans: FxIndexSet, . } . . impl SpanInterner { 3 ( 0.00%) fn intern(&mut self, span_data: &SpanData) -> u32 { 4 ( 0.00%) let (index, _) = self.spans.insert_full(*span_data); . index as u32 4 ( 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())) . } 114,968 ( 0.14%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/imports.rs -------------------------------------------------------------------------------- Ir -- line 109 ---------------------------------------- . /// The resolution of `module_path`. . pub imported_module: Cell>>, . pub vis: Cell, . pub used: Cell, . } . . impl<'a> Import<'a> { . pub fn is_glob(&self) -> bool { 11 ( 0.00%) matches!(self.kind, ImportKind::Glob { .. }) . } . . pub fn is_nested(&self) -> bool { . match self.kind { . ImportKind::Single { nested, .. } => nested, . _ => false, . } . } . . crate fn crate_lint(&self) -> CrateLint { 3 ( 0.00%) CrateLint::UsePath { root_id: self.root_id, root_span: self.root_span } 5 ( 0.00%) } . } . 16,578 ( 0.02%) #[derive(Clone, Default, Debug)] . /// Records information about the resolution of a name in a namespace of a module. . pub struct NameResolution<'a> { . /// Single imports that may define the name in the namespace. . /// Imports are arena-allocated, so it's ok to use pointers as keys. . single_imports: FxHashSet>>, . /// The least shadowable known binding for this name, or None if there are no known bindings. . pub binding: Option<&'a NameBinding<'a>>, . shadowed_glob: Option<&'a NameBinding<'a>>, . } . . impl<'a> NameResolution<'a> { . // Returns the binding for the name if it is known or None if it not known. . pub(crate) fn binding(&self) -> Option<&'a NameBinding<'a>> { 5,462 ( 0.01%) self.binding.and_then(|binding| { 4 ( 0.00%) if !binding.is_glob_import() || self.single_imports.is_empty() { . Some(binding) . } else { . None . } . }) . } . . crate fn add_single_import(&mut self, import: &'a Import<'a>) { -- line 155 ---------------------------------------- -- line 177 ---------------------------------------- . &mut self, . module: ModuleOrUniformRoot<'a>, . ident: Ident, . ns: Namespace, . parent_scope: &ParentScope<'a>, . record_used: bool, . path_span: Span, . ) -> Result<&'a NameBinding<'a>, Determinacy> { 563 ( 0.00%) self.resolve_ident_in_module_unadjusted_ext( . module, . ident, . ns, . parent_scope, . false, . record_used, . path_span, . ) . .map_err(|(determinacy, _)| determinacy) . } . . /// Attempts to resolve `ident` in namespaces `ns` of `module`. . /// Invariant: if `record_used` is `Some`, expansion and import resolution must be complete. 3,465 ( 0.00%) crate fn resolve_ident_in_module_unadjusted_ext( . &mut self, . module: ModuleOrUniformRoot<'a>, . ident: Ident, . ns: Namespace, . parent_scope: &ParentScope<'a>, . restricted_shadowing: bool, . record_used: bool, . path_span: Span, -- line 207 ---------------------------------------- -- line 259 ---------------------------------------- . path_span, . ); . return binding.map_err(|determinacy| (determinacy, Weak::No)); . } . }; . . let key = self.new_key(ident, ns); . let resolution = 1,320 ( 0.00%) self.resolution(module, key).try_borrow_mut().map_err(|_| (Determined, Weak::No))?; // This happens when there is a cycle of imports. . 637 ( 0.00%) if let Some(binding) = resolution.binding { 71 ( 0.00%) if !restricted_shadowing && binding.expansion != LocalExpnId::ROOT { 48 ( 0.00%) if let NameBindingKind::Res(_, true) = binding.kind { . self.macro_expanded_macro_export_errors.insert((path_span, binding.span)); . } . } . } . 660 ( 0.00%) let check_usable = |this: &mut Self, binding: &'a NameBinding<'a>| { 114 ( 0.00%) if let Some(unusable_binding) = this.unusable_binding { . if ptr::eq(binding, unusable_binding) { . return Err((Determined, Weak::No)); . } . } 57 ( 0.00%) let usable = this.is_accessible_from(binding.vis, parent_scope.module); 76 ( 0.00%) if usable { Ok(binding) } else { Err((Determined, Weak::No)) } . }; . 330 ( 0.00%) if record_used { 176 ( 0.00%) return resolution . .binding . .and_then(|binding| { . // If the primary binding is unusable, search further and return the shadowed glob . // binding if it exists. What we really want here is having two separate scopes in . // a module - one for non-globs and one for globs, but until that's done use this . // hack to avoid inconsistent resolution ICEs during import validation. 260 ( 0.00%) if let Some(unusable_binding) = self.unusable_binding { . if ptr::eq(binding, unusable_binding) { . return resolution.shadowed_glob; . } . } . Some(binding) . }) . .ok_or((Determined, Weak::No)) . .and_then(|binding| { 104 ( 0.00%) if self.last_import_segment && check_usable(self, binding).is_err() { . Err((Determined, Weak::No)) . } else { 312 ( 0.00%) self.record_use(ident, binding, restricted_shadowing); . 156 ( 0.00%) if let Some(shadowed_glob) = resolution.shadowed_glob { . // Forbid expanded shadowing to avoid time travel. . if restricted_shadowing . && binding.expansion != LocalExpnId::ROOT . && binding.res() != shadowed_glob.res() . { . self.ambiguity_errors.push(AmbiguityError { . kind: AmbiguityKind::GlobVsExpanded, . ident, -- line 317 ---------------------------------------- -- line 318 ---------------------------------------- . b1: binding, . b2: shadowed_glob, . misc1: AmbiguityErrorMisc::None, . misc2: AmbiguityErrorMisc::None, . }); . } . } . 260 ( 0.00%) if !self.is_accessible_from(binding.vis, parent_scope.module) { . self.privacy_errors.push(PrivacyError { . ident, . binding, . dedup_span: path_span, . }); . } . . Ok(binding) . } . }); . } . . // Items and single imports are not shadowable, if we have one, then it's determined. 231 ( 0.00%) if let Some(binding) = resolution.binding { 1 ( 0.00%) if !binding.is_glob_import() { . return check_usable(self, binding); . } . } . . // --- From now on we either have a glob resolution or no resolution. --- . . // Check if one of single imports can still define the name, . // if it can then our result is not determined and can be invalidated. 580 ( 0.00%) for single_import in &resolution.single_imports { . if !self.is_accessible_from(single_import.vis.get(), parent_scope.module) { . continue; . } . let module = match single_import.imported_module.get() { . Some(x) => x, . None => return Err((Undetermined, Weak::No)), . }; . let ident = match single_import.kind { -- line 358 ---------------------------------------- -- line 385 ---------------------------------------- . // Additionally, any macro in any module can plant names in the root module if it creates . // `macro_export` macros, so the root module effectively has unresolved invocations if any . // module has unresolved invocations. . // However, it causes resolution/expansion to stuck too often (#53144), so, to make . // progress, we have to ignore those potential unresolved invocations from other modules . // and prohibit access to macro-expanded `macro_export` macros instead (unless restricted . // shadowing is enabled, see `macro_expanded_macro_export_errors`). . let unexpanded_macros = !module.unexpanded_invocations.borrow().is_empty(); 290 ( 0.00%) if let Some(binding) = resolution.binding { . if !unexpanded_macros || ns == MacroNS || restricted_shadowing { . return check_usable(self, binding); . } else { . return Err((Undetermined, Weak::No)); . } . } . . // --- From now on we have no resolution. --- -- line 401 ---------------------------------------- -- line 403 ---------------------------------------- . // Now we are in situation when new item/import can appear only from a glob or a macro . // expansion. With restricted shadowing names from globs and macro expansions cannot . // shadow names from outer scopes, so we can freely fallback from module search to search . // in outer scopes. For `early_resolve_ident_in_lexical_scope` to continue search in outer . // scopes we return `Undetermined` with `Weak::Yes`. . . // Check if one of unexpanded macros can still define the name, . // if it can then our "no resolution" result is not determined and can be invalidated. 58 ( 0.00%) if unexpanded_macros { . return Err((Undetermined, Weak::Yes)); . } . . // Check if one of glob imports can still define the name, . // if it can then our "no resolution" result is not determined and can be invalidated. 204 ( 0.00%) for glob_import in module.globs.borrow().iter() { . if !self.is_accessible_from(glob_import.vis.get(), parent_scope.module) { . continue; . } . let module = match glob_import.imported_module.get() { . Some(ModuleOrUniformRoot::Module(module)) => module, . Some(_) => continue, . None => return Err((Undetermined, Weak::Yes)), . }; -- line 425 ---------------------------------------- -- line 452 ---------------------------------------- . continue; . } . Ok(_) | Err(Undetermined) => return Err((Undetermined, Weak::Yes)), . } . } . . // No resolution and no one else can define the name - determinate error. . Err((Determined, Weak::No)) 2,970 ( 0.00%) } . . // Given a binding and an import that resolves to it, . // return the corresponding binding defined by the import. 380 ( 0.00%) crate fn import( . &self, . binding: &'a NameBinding<'a>, . import: &'a Import<'a>, . ) -> &'a NameBinding<'a> { 380 ( 0.00%) let vis = if binding.vis.is_at_least(import.vis.get(), self) . || pub_use_of_private_extern_crate_hack(import, binding) . { . import.vis.get() . } else { . binding.vis . }; . 114 ( 0.00%) if let ImportKind::Glob { ref max_vis, .. } = import.kind { . if vis == import.vis.get() || vis.is_at_least(max_vis.get(), self) { . max_vis.set(vis) . } . } . 38 ( 0.00%) self.arenas.alloc_name_binding(NameBinding { . kind: NameBindingKind::Import { binding, import, used: Cell::new(false) }, . ambiguity: None, 38 ( 0.00%) span: import.span, . vis, 38 ( 0.00%) expansion: import.parent_scope.expansion, . }) 304 ( 0.00%) } . . // Define the name or return the existing binding if there is a collision. 65,544 ( 0.08%) crate fn try_define( . &mut self, . module: Module<'a>, . key: BindingKey, . binding: &'a NameBinding<'a>, . ) -> Result<(), &'a NameBinding<'a>> { . let res = binding.res(); 98,316 ( 0.12%) self.check_reserved_macro_name(key.ident, res); . self.set_binding_parent_module(binding, module); 32,772 ( 0.04%) self.update_resolution(module, key, |this, resolution| { . if let Some(old_binding) = resolution.binding { . if res == Res::Err { . // Do not override real bindings with `Res::Err`s from error recovery. . return Ok(()); . } . match (old_binding.is_glob_import(), binding.is_glob_import()) { . (true, true) => { . if res != old_binding.res() { -- line 510 ---------------------------------------- -- line 535 ---------------------------------------- . } . resolution.shadowed_glob = Some(glob_binding); . } . (false, false) => { . return Err(old_binding); . } . } . } else { 16,386 ( 0.02%) resolution.binding = Some(binding); . } . . Ok(()) . }) 49,158 ( 0.06%) } . . fn ambiguity( . &self, . kind: AmbiguityKind, . primary_binding: &'a NameBinding<'a>, . secondary_binding: &'a NameBinding<'a>, . ) -> &'a NameBinding<'a> { . self.arenas.alloc_name_binding(NameBinding { -- line 556 ---------------------------------------- -- line 563 ---------------------------------------- . // If the resolution becomes a success, define it in the module's glob importers. . fn update_resolution(&mut self, module: Module<'a>, key: BindingKey, f: F) -> T . where . F: FnOnce(&mut Resolver<'a>, &mut NameResolution<'a>) -> T, . { . // Ensure that `resolution` isn't borrowed when defining in the module's glob importers, . // during which the resolution might end up getting re-defined via a glob cycle. . let (binding, t) = { 87,392 ( 0.11%) let resolution = &mut *self.resolution(module, key).borrow_mut(); . let old_binding = resolution.binding(); . . let t = f(self, resolution); . . match resolution.binding() { . _ if old_binding.is_some() => return t, . None => return t, . Some(binding) => match old_binding { -- line 579 ---------------------------------------- -- line 643 ---------------------------------------- . // This is a fixed-point algorithm. We resolve imports until our efforts . // are stymied by an unresolved import; then we bail out of the current . // module and continue. We terminate successfully once no more imports . // remain or unsuccessfully when no forward progress in resolving imports . // is made. . . /// Resolves all imports for the crate. This method performs the fixed- . /// point iteration. 16 ( 0.00%) pub fn resolve_imports(&mut self) { 10 ( 0.00%) let mut prev_num_indeterminates = self.r.indeterminate_imports.len() + 1; 19 ( 0.00%) while self.r.indeterminate_imports.len() < prev_num_indeterminates { . prev_num_indeterminates = self.r.indeterminate_imports.len(); 2 ( 0.00%) for import in mem::take(&mut self.r.indeterminate_imports) { . match self.resolve_import(&import) { 2 ( 0.00%) true => self.r.determined_imports.push(import), . false => self.r.indeterminate_imports.push(import), . } . } . } 16 ( 0.00%) } . 7 ( 0.00%) pub fn finalize_imports(&mut self) { 2 ( 0.00%) for module in self.r.arenas.local_modules().iter() { 4 ( 0.00%) self.finalize_resolutions_in(module); . } . . let mut seen_spans = FxHashSet::default(); . let mut errors = vec![]; . let mut prev_root_id: NodeId = NodeId::from_u32(0); 1 ( 0.00%) let determined_imports = mem::take(&mut self.r.determined_imports); 1 ( 0.00%) let indeterminate_imports = mem::take(&mut self.r.indeterminate_imports); . 12 ( 0.00%) for (is_indeterminate, import) in determined_imports . .into_iter() . .map(|i| (false, i)) . .chain(indeterminate_imports.into_iter().map(|i| (true, i))) . { 6 ( 0.00%) if let Some(err) = self.finalize_import(import) { . if let ImportKind::Single { source, ref source_bindings, .. } = import.kind { . if source.name == kw::SelfLower { . // Silence `unresolved import` error if E0429 is already emitted . if let Err(Determined) = source_bindings.value_ns.get() { . continue; . } . } . } -- line 688 ---------------------------------------- -- line 703 ---------------------------------------- . let path = import_path_to_string( . &import.module_path.iter().map(|seg| seg.ident).collect::>(), . &import.kind, . err.span, . ); . errors.push((path, err)); . prev_root_id = import.root_id; . } 2 ( 0.00%) } else if is_indeterminate { . // Consider erroneous imports used to avoid duplicate diagnostics. . self.r.used_imports.insert(import.id); . let path = import_path_to_string( . &import.module_path.iter().map(|seg| seg.ident).collect::>(), . &import.kind, . import.span, . ); . let err = UnresolvedImportError { -- line 719 ---------------------------------------- -- line 721 ---------------------------------------- . label: None, . note: Vec::new(), . suggestion: None, . }; . errors.push((path, err)); . } . } . 1 ( 0.00%) if !errors.is_empty() { . self.throw_unresolved_import_error(errors, None); . } 8 ( 0.00%) } . . fn throw_unresolved_import_error( . &self, . errors: Vec<(String, UnresolvedImportError)>, . span: Option, . ) { . /// Upper limit on the number of `span_label` messages. . const MAX_LABEL_COUNT: usize = 10; -- line 740 ---------------------------------------- -- line 776 ---------------------------------------- . /// If successful, the resolved bindings are written into the module. . fn resolve_import(&mut self, import: &'b Import<'b>) -> bool { . debug!( . "(resolving import for module) resolving import `{}::...` in `{}`", . Segment::names_to_string(&import.module_path), . module_to_string(import.parent_scope.module).unwrap_or_else(|| "???".to_string()), . ); . 3 ( 0.00%) let module = if let Some(module) = import.imported_module.get() { . module . } else { . // For better failure detection, pretend that the import will . // not define any names while resolving its module path. . let orig_vis = import.vis.replace(ty::Visibility::Invisible); . let path_res = self.r.resolve_path( . &import.module_path, . None, 1 ( 0.00%) &import.parent_scope, . false, . import.span, . import.crate_lint(), . ); . import.vis.set(orig_vis); . 7 ( 0.00%) match path_res { 5 ( 0.00%) PathResult::Module(module) => module, . PathResult::Indeterminate => return false, . PathResult::NonModule(..) | PathResult::Failed { .. } => return true, . } . }; . . import.imported_module.set(Some(module)); 5 ( 0.00%) let (source, target, source_bindings, target_bindings, type_ns_only) = match import.kind { . ImportKind::Single { . source, . target, . ref source_bindings, . ref target_bindings, . type_ns_only, . .. . } => (source, target, source_bindings, target_bindings, type_ns_only), -- line 816 ---------------------------------------- -- line 873 ---------------------------------------- . . !indeterminate . } . . /// Performs final import resolution, consistency checks and error reporting. . /// . /// Optionally returns an unresolved import error. This error is buffered and used to . /// consolidate multiple unresolved import errors into a single diagnostic. 10 ( 0.00%) fn finalize_import(&mut self, import: &'b Import<'b>) -> Option { . let orig_vis = import.vis.replace(ty::Visibility::Invisible); 4 ( 0.00%) let orig_unusable_binding = match &import.kind { . ImportKind::Single { target_bindings, .. } => { . Some(mem::replace(&mut self.r.unusable_binding, target_bindings[TypeNS].get())) . } . _ => None, . }; 2 ( 0.00%) let prev_ambiguity_errors_len = self.r.ambiguity_errors.len(); . let path_res = self.r.resolve_path( . &import.module_path, . None, 1 ( 0.00%) &import.parent_scope, . true, 1 ( 0.00%) import.span, . import.crate_lint(), . ); 1 ( 0.00%) let no_ambiguity = self.r.ambiguity_errors.len() == prev_ambiguity_errors_len; 1 ( 0.00%) if let Some(orig_unusable_binding) = orig_unusable_binding { . self.r.unusable_binding = orig_unusable_binding; . } . import.vis.set(orig_vis); 5 ( 0.00%) if let PathResult::Failed { .. } | PathResult::NonModule(..) = path_res { . // Consider erroneous imports used to avoid duplicate diagnostics. . self.r.used_imports.insert(import.id); . } . let module = match path_res { 3 ( 0.00%) PathResult::Module(module) => { . // Consistency checks, analogous to `finalize_macro_resolutions`. 3 ( 0.00%) if let Some(initial_module) = import.imported_module.get() { 3 ( 0.00%) if !ModuleOrUniformRoot::same_def(module, initial_module) && no_ambiguity { . span_bug!(import.span, "inconsistent resolution for an import"); . } . } else if self.r.privacy_errors.is_empty() { . let msg = "cannot determine resolution for the import"; . let msg_note = "import resolution is stuck, try simplifying other imports"; . self.r.session.struct_span_err(import.span, msg).note(msg_note).emit(); . } . 3 ( 0.00%) module . } . PathResult::Failed { is_error_from_last_segment: false, span, label, suggestion } => { . if no_ambiguity { . assert!(import.imported_module.get().is_none()); . self.r . .report_error(span, ResolutionError::FailedToResolve { label, suggestion }); . } . return None; -- line 928 ---------------------------------------- -- line 961 ---------------------------------------- . assert!(import.imported_module.get().is_none()); . } . // The error was already reported earlier. . return None; . } . PathResult::Indeterminate => unreachable!(), . }; . 5 ( 0.00%) let (ident, target, source_bindings, target_bindings, type_ns_only) = match import.kind { . ImportKind::Single { . source, . target, . ref source_bindings, . ref target_bindings, . type_ns_only, . .. . } => (source, target, source_bindings, target_bindings, type_ns_only), 2 ( 0.00%) ImportKind::Glob { is_prelude, ref max_vis } => { 3 ( 0.00%) if import.module_path.len() <= 1 { . // HACK(eddyb) `lint_if_path_starts_with_module` needs at least . // 2 segments, so the `resolve_path` above won't trigger it. . let mut full_path = import.module_path.clone(); . full_path.push(Segment::from_ident(Ident::empty())); . self.r.lint_if_path_starts_with_module( . import.crate_lint(), . &full_path, . import.span, . None, . ); . } . 4 ( 0.00%) if let ModuleOrUniformRoot::Module(module) = module { 1 ( 0.00%) if ptr::eq(module, import.parent_scope.module) { . // Importing a module into itself is not allowed. . return Some(UnresolvedImportError { . span: import.span, . label: Some(String::from("cannot glob-import a module into itself")), . note: Vec::new(), . suggestion: None, . }); . } . } 1 ( 0.00%) if !is_prelude && . max_vis.get() != ty::Visibility::Invisible && // Allow empty globs. . !max_vis.get().is_at_least(import.vis.get(), &*self) . { . let msg = "glob import doesn't reexport anything because no candidate is public enough"; . self.r.lint_buffer.buffer_lint(UNUSED_IMPORTS, import.id, import.span, msg); . } . return None; . } -- line 1011 ---------------------------------------- -- line 1271 ---------------------------------------- . this.import_res_map.entry(import.id).or_default()[ns] = Some(binding.res()); . } . }); . . self.check_for_redundant_imports(ident, import, source_bindings, target_bindings, target); . . debug!("(resolving single import) successfully resolved import"); . None 8 ( 0.00%) } . . fn check_for_redundant_imports( . &mut self, . ident: Ident, . import: &'b Import<'b>, . source_bindings: &PerNS, Determinacy>>>, . target_bindings: &PerNS>>>, . target: Ident, -- line 1287 ---------------------------------------- -- line 1350 ---------------------------------------- . let module = match import.imported_module.get().unwrap() { . ModuleOrUniformRoot::Module(module) => module, . _ => { . self.r.session.span_err(import.span, "cannot glob-import all possible crates"); . return; . } . }; . 3 ( 0.00%) if module.is_trait() { . self.r.session.span_err(import.span, "items in traits are not importable"); . return; 1 ( 0.00%) } else if ptr::eq(module, import.parent_scope.module) { . return; 4 ( 0.00%) } else if let ImportKind::Glob { is_prelude: true, .. } = import.kind { 2 ( 0.00%) self.r.prelude = Some(module); . return; . } . . // Add to module's glob_importers . module.glob_importers.borrow_mut().push(import); . . // Ensure that `resolutions` isn't borrowed during `try_define`, . // since it might get updated via a glob cycle. -- line 1372 ---------------------------------------- -- line 1394 ---------------------------------------- . // Record the destination of this import . self.r.record_partial_res(import.id, PartialRes::new(module.res().unwrap())); . } . . // Miscellaneous post-processing, including recording re-exports, . // reporting conflicts, and reporting unresolved imports. . fn finalize_resolutions_in(&mut self, module: Module<'b>) { . // Since import resolution is finished, globs will not define any more names. 16 ( 0.00%) *module.globs.borrow_mut() = Vec::new(); . . let mut reexports = Vec::new(); . 20 ( 0.00%) module.for_each_child(self.r, |_, ident, _, binding| { . // Filter away ambiguous imports and anything that has def-site hygiene. . // FIXME: Implement actual cross-crate hygiene. . let is_good_import = 17 ( 0.00%) binding.is_import() && !binding.is_ambiguity() && !ident.span.from_expansion(); 45 ( 0.00%) if is_good_import || binding.is_macro_def() { . let res = binding.res().expect_non_local(); . if res != def::Res::Err { 16 ( 0.00%) reexports.push(ModChild { ident, res, vis: binding.vis, span: binding.span }); . } . } . }); . 4 ( 0.00%) if !reexports.is_empty() { 4 ( 0.00%) if let Some(def_id) = module.opt_def_id() { . // Call to `expect_local` should be fine because current . // code is only called for local modules. . self.r.reexport_map.insert(def_id.expect_local(), reexports); . } . } . } . } . -- line 1428 ---------------------------------------- 33,675 ( 0.04%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_resolve/src/lib.rs -------------------------------------------------------------------------------- Ir -- line 91 ---------------------------------------- . mod late; . mod macros; . . enum Weak { . Yes, . No, . } . 42 ( 0.00%) #[derive(Copy, Clone, PartialEq, Debug)] . pub enum Determinacy { . Determined, . Undetermined, . } . . impl Determinacy { . fn determined(determined: bool) -> Determinacy { . if determined { Determinacy::Determined } else { Determinacy::Undetermined } 28 ( 0.00%) } . } . . /// A specific scope in which a name can be looked up. . /// This enum is currently used only for early resolution (imports and macros), . /// but not for late resolution yet. . #[derive(Clone, Copy)] . enum Scope<'a> { . DeriveHelpers(LocalExpnId), -- line 116 ---------------------------------------- -- line 157 ---------------------------------------- . macro_rules: MacroRulesScopeRef<'a>, . derives: &'a [ast::Path], . } . . impl<'a> ParentScope<'a> { . /// Creates a parent scope with the passed argument used as the module scope component, . /// and other scope components set to default empty values. . pub fn module(module: Module<'a>, resolver: &Resolver<'a>) -> ParentScope<'a> { 8 ( 0.00%) ParentScope { . module, . expansion: LocalExpnId::ROOT, 5,452 ( 0.01%) macro_rules: resolver.arenas.alloc_macro_rules_scope(MacroRulesScope::Empty), . derives: &[], . } . } . } . . #[derive(Copy, Debug, Clone)] . enum ImplTraitContext { . Existential, -- line 176 ---------------------------------------- -- line 303 ---------------------------------------- . . fn names_to_string(segments: &[Segment]) -> String { . names_to_string(&segments.iter().map(|seg| seg.ident.name).collect::>()) . } . } . . impl<'a> From<&'a ast::PathSegment> for Segment { . fn from(seg: &'a ast::PathSegment) -> Segment { 5 ( 0.00%) Segment { ident: seg.ident, id: Some(seg.id), has_generic_args: seg.args.is_some() } . } . } . . struct UsePlacementFinder { . target_module: NodeId, . span: Option, . found_use: bool, . } -- line 319 ---------------------------------------- -- line 391 ---------------------------------------- . #[derive(Debug)] . enum LexicalScopeBinding<'a> { . Item(&'a NameBinding<'a>), . Res(Res), . } . . impl<'a> LexicalScopeBinding<'a> { . fn res(self) -> Res { 8 ( 0.00%) match self { . LexicalScopeBinding::Item(binding) => binding.res(), 12 ( 0.00%) LexicalScopeBinding::Res(res) => res, . } . } . } . . #[derive(Copy, Clone, Debug)] . enum ModuleOrUniformRoot<'a> { . /// Regular module. . Module(Module<'a>), -- line 409 ---------------------------------------- -- line 418 ---------------------------------------- . /// Virtual module that denotes resolution in current scope. . /// Used only for resolving single-segment imports. The reason it exists is that import paths . /// are always split into two parts, the first of which should be some kind of module. . CurrentScope, . } . . impl ModuleOrUniformRoot<'_> { . fn same_def(lhs: Self, rhs: Self) -> bool { 4 ( 0.00%) match (lhs, rhs) { . (ModuleOrUniformRoot::Module(lhs), ModuleOrUniformRoot::Module(rhs)) => { . ptr::eq(lhs, rhs) . } . ( . ModuleOrUniformRoot::CrateRootAndExternPrelude, . ModuleOrUniformRoot::CrateRootAndExternPrelude, . ) . | (ModuleOrUniformRoot::ExternPrelude, ModuleOrUniformRoot::ExternPrelude) -- line 434 ---------------------------------------- -- line 491 ---------------------------------------- . /// A key that identifies a binding in a given `Module`. . /// . /// Multiple bindings in the same module can have the same key (in a valid . /// program) if all but one of them come from glob imports. . #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)] . struct BindingKey { . /// The identifier for the binding, aways the `normalize_to_macros_2_0` version of the . /// identifier. 7,080 ( 0.01%) ident: Ident, 1,386 ( 0.00%) ns: Namespace, . /// 0 if ident is not `_`, otherwise a value that's unique to the specific . /// `_` in the expanded AST that introduced this binding. 309 ( 0.00%) disambiguator: u32, . } . . type Resolutions<'a> = RefCell>>>; . . /// One node in the tree of modules. . /// . /// Note that a "module" in resolve is broader than a `mod` that you declare in Rust code. It may be one of these: . /// -- line 511 ---------------------------------------- -- line 551 ---------------------------------------- . impl<'a> ModuleData<'a> { . fn new( . parent: Option>, . kind: ModuleKind, . expansion: ExpnId, . span: Span, . no_implicit_prelude: bool, . ) -> Self { 1,267 ( 0.00%) let is_foreign = match kind { . ModuleKind::Def(_, def_id, _) => !def_id.is_local(), . ModuleKind::Block(_) => false, . }; 4,163 ( 0.01%) ModuleData { . parent, . kind, . lazy_resolutions: Default::default(), . populate_on_access: Cell::new(is_foreign), . unexpanded_invocations: Default::default(), . no_implicit_prelude, . glob_importers: RefCell::new(Vec::new()), . globs: RefCell::new(Vec::new()), . traits: RefCell::new(None), . span, . expansion, . } . } . 62 ( 0.00%) fn for_each_child(&'a self, resolver: &mut R, mut f: F) . where . R: AsMut>, . F: FnMut(&mut R, Ident, Namespace, &'a NameBinding<'a>), . { 20 ( 0.00%) for (key, name_resolution) in resolver.as_mut().resolutions(self).borrow().iter() { 1,004 ( 0.00%) if let Some(binding) = name_resolution.borrow().binding { 39 ( 0.00%) f(resolver, key.ident, key.ns, binding); . } . } 48 ( 0.00%) } . . /// This modifies `self` in place. The traits will be stored in `self.traits`. . fn ensure_traits(&'a self, resolver: &mut R) . where . R: AsMut>, . { . let mut traits = self.traits.borrow_mut(); 6 ( 0.00%) if traits.is_none() { . let mut collected_traits = Vec::new(); . self.for_each_child(resolver, |_, name, ns, binding| { 79 ( 0.00%) if ns != TypeNS { . return; . } 144 ( 0.00%) if let Res::Def(DefKind::Trait | DefKind::TraitAlias, _) = binding.res() { . collected_traits.push((name, binding)) . } . }); 12 ( 0.00%) *traits = Some(collected_traits.into_boxed_slice()); . } . } . . fn res(&self) -> Option { 572 ( 0.00%) match self.kind { 823 ( 0.00%) ModuleKind::Def(kind, def_id, _) => Some(Res::Def(kind, def_id)), . _ => None, . } . } . . // Public for rustdoc. . pub fn def_id(&self) -> DefId { . self.opt_def_id().expect("`ModuleData::def_id` is called on a block module") . } . . fn opt_def_id(&self) -> Option { 631 ( 0.00%) match self.kind { . ModuleKind::Def(_, def_id, _) => Some(def_id), . _ => None, . } . } . . // `self` resolves to the first module ancestor that `is_normal`. . fn is_normal(&self) -> bool { 18 ( 0.00%) matches!(self.kind, ModuleKind::Def(DefKind::Mod, _, _)) . } . . fn is_trait(&self) -> bool { 1 ( 0.00%) matches!(self.kind, ModuleKind::Def(DefKind::Trait, _, _)) . } . . fn nearest_item_scope(&'a self) -> Module<'a> { 213 ( 0.00%) match self.kind { . ModuleKind::Def(DefKind::Enum | DefKind::Trait, ..) => { . self.parent.expect("enum or trait module without a parent") . } . _ => self, . } . } . . /// The [`DefId`] of the nearest `mod` item ancestor (which may be this module). . /// This may be the crate root. 97 ( 0.00%) fn nearest_parent_mod(&self) -> DefId { 364 ( 0.00%) match self.kind { 170 ( 0.00%) ModuleKind::Def(DefKind::Mod, def_id, _) => def_id, 24 ( 0.00%) _ => self.parent.expect("non-root module without parent").nearest_parent_mod(), . } 194 ( 0.00%) } . . fn is_ancestor_of(&self, mut other: &Self) -> bool { . while !ptr::eq(self, other) { . if let Some(parent) = other.parent { . other = parent; . } else { . return false; . } -- line 662 ---------------------------------------- -- line 773 ---------------------------------------- . b1: &'a NameBinding<'a>, . b2: &'a NameBinding<'a>, . misc1: AmbiguityErrorMisc, . misc2: AmbiguityErrorMisc, . } . . impl<'a> NameBinding<'a> { . fn module(&self) -> Option> { 669 ( 0.00%) match self.kind { 111 ( 0.00%) NameBindingKind::Module(module) => Some(module), 6 ( 0.00%) NameBindingKind::Import { binding, .. } => binding.module(), . _ => None, . } . } . . fn res(&self) -> Res { 28,216 ( 0.04%) match self.kind { 26,714 ( 0.03%) NameBindingKind::Res(res, _) => res, 277 ( 0.00%) NameBindingKind::Module(module) => module.res().unwrap(), 19 ( 0.00%) NameBindingKind::Import { binding, .. } => binding.res(), . } . } . . fn is_ambiguity(&self) -> bool { 8 ( 0.00%) self.ambiguity.is_some() 8 ( 0.00%) || match self.kind { 4 ( 0.00%) NameBindingKind::Import { binding, .. } => binding.is_ambiguity(), . _ => false, . } . } . . fn is_possibly_imported_variant(&self) -> bool { . match self.kind { . NameBindingKind::Import { binding, .. } => binding.is_possibly_imported_variant(), . NameBindingKind::Res( -- line 807 ---------------------------------------- -- line 822 ---------------------------------------- . kind: ModuleKind::Def(DefKind::Mod, def_id, _), . .. . }) => def_id.index == CRATE_DEF_INDEX, . _ => false, . } . } . . fn is_import(&self) -> bool { 26 ( 0.00%) matches!(self.kind, NameBindingKind::Import { .. }) . } . . fn is_glob_import(&self) -> bool { 16,420 ( 0.02%) match self.kind { 5 ( 0.00%) NameBindingKind::Import { import, .. } => import.is_glob(), . _ => false, . } . } . . fn is_importable(&self) -> bool { . !matches!( . self.res(), . Res::Def(DefKind::AssocConst | DefKind::AssocFn | DefKind::AssocTy, _) . ) . } . . fn is_macro_def(&self) -> bool { 9 ( 0.00%) matches!(self.kind, NameBindingKind::Res(Res::Def(DefKind::Macro(..), _), _)) . } . . fn macro_kind(&self) -> Option { . self.res().macro_kind() . } . . // Suppose that we resolved macro invocation with `invoc_parent_expansion` to binding `binding` . // at some expansion round `max(invoc, binding)` when they both emerged from macros. -- line 856 ---------------------------------------- -- line 1065 ---------------------------------------- . /// they are declared in the static array generated by proc_macro_harness. . proc_macros: Vec, . confused_type_with_std_module: FxHashMap, . . access_levels: AccessLevels, . } . . /// Nothing really interesting here; it just provides memory for the rest of the crate. 7 ( 0.00%) #[derive(Default)] . pub struct ResolverArenas<'a> { . modules: TypedArena>, . local_modules: RefCell>>, . imports: TypedArena>, . name_resolutions: TypedArena>>, . ast_paths: TypedArena, . dropless: DroplessArena, . } . . impl<'a> ResolverArenas<'a> { 2,353 ( 0.00%) fn new_module( . &'a self, . parent: Option>, . kind: ModuleKind, . expn_id: ExpnId, . span: Span, . no_implicit_prelude: bool, . module_map: &mut FxHashMap>, . ) -> Module<'a> { . let module = . self.modules.alloc(ModuleData::new(parent, kind, expn_id, span, no_implicit_prelude)); . let def_id = module.opt_def_id(); 543 ( 0.00%) if def_id.map_or(true, |def_id| def_id.is_local()) { . self.local_modules.borrow_mut().push(module); . } 181 ( 0.00%) if let Some(def_id) = def_id { . module_map.insert(def_id, module); . } . module 1,629 ( 0.00%) } . fn local_modules(&'a self) -> std::cell::Ref<'a, Vec>> { . self.local_modules.borrow() . } . fn alloc_name_binding(&'a self, name_binding: NameBinding<'a>) -> &'a NameBinding<'a> { . self.dropless.alloc(name_binding) . } 42 ( 0.00%) fn alloc_import(&'a self, import: Import<'a>) -> &'a Import<'_> { 50 ( 0.00%) self.imports.alloc(import) 42 ( 0.00%) } . fn alloc_name_resolution(&'a self) -> &'a RefCell> { 5,526 ( 0.01%) self.name_resolutions.alloc(Default::default()) . } . fn alloc_macro_rules_scope(&'a self, scope: MacroRulesScope<'a>) -> MacroRulesScopeRef<'a> { . PtrKey(self.dropless.alloc(Cell::new(scope))) . } . fn alloc_macro_rules_binding( . &'a self, . binding: MacroRulesBinding<'a>, . ) -> &'a MacroRulesBinding<'a> { -- line 1122 ---------------------------------------- -- line 1133 ---------------------------------------- . impl<'a> AsMut> for Resolver<'a> { . fn as_mut(&mut self) -> &mut Resolver<'a> { . self . } . } . . impl<'a, 'b> DefIdTree for &'a Resolver<'b> { . fn parent(self, id: DefId) -> Option { 6 ( 0.00%) match id.as_local() { . Some(id) => self.definitions.def_key(id).parent, . None => self.cstore().def_key(id).parent, . } . .map(|index| DefId { index, ..id }) . } . } . . /// This interface is used through the AST→HIR step, to embed full paths into the HIR. After that . /// the resolver is no longer needed as all the relevant information is inline. . impl ResolverAstLowering for Resolver<'_> { . fn def_key(&mut self, id: DefId) -> DefKey { . if let Some(id) = id.as_local() { . self.definitions().def_key(id) . } else { 210 ( 0.00%) self.cstore().def_key(id) . } . } . . #[inline] . fn def_span(&self, id: LocalDefId) -> Span { . self.definitions.def_span(id) . } . 84 ( 0.00%) fn item_generics_num_lifetimes(&self, def_id: DefId) -> usize { 26 ( 0.00%) if let Some(def_id) = def_id.as_local() { 6 ( 0.00%) self.item_generics_num_lifetimes[&def_id] . } else { 64 ( 0.00%) self.cstore().item_generics_num_lifetimes(def_id, self.session) . } 24 ( 0.00%) } . 10 ( 0.00%) fn legacy_const_generic_args(&mut self, expr: &Expr) -> Option> { 5 ( 0.00%) self.legacy_const_generic_args(expr) 15 ( 0.00%) } . 114 ( 0.00%) fn get_partial_res(&self, id: NodeId) -> Option { . self.partial_res_map.get(&id).cloned() 342 ( 0.00%) } . . fn get_import_res(&mut self, id: NodeId) -> PerNS> { . self.import_res_map.get(&id).cloned().unwrap_or_default() . } . . fn get_label_res(&mut self, id: NodeId) -> Option { . self.label_res_map.get(&id).cloned() . } . . fn definitions(&mut self) -> &mut Definitions { 17 ( 0.00%) &mut self.definitions 17 ( 0.00%) } . 116 ( 0.00%) fn create_stable_hashing_context(&self) -> StableHashingContext<'_> { 203 ( 0.00%) StableHashingContext::new(self.session, &self.definitions, self.crate_loader.cstore()) 145 ( 0.00%) } . . fn lint_buffer(&mut self) -> &mut LintBuffer { . &mut self.lint_buffer . } . . fn next_node_id(&mut self) -> NodeId { . self.next_node_id() . } . 796 ( 0.00%) fn take_trait_map(&mut self, node: NodeId) -> Option> { . self.trait_map.remove(&node) 796 ( 0.00%) } . 824 ( 0.00%) fn opt_local_def_id(&self, node: NodeId) -> Option { 194 ( 0.00%) self.node_id_to_def_id.get(&node).copied() 824 ( 0.00%) } . 62 ( 0.00%) fn local_def_id(&self, node: NodeId) -> LocalDefId { . self.opt_local_def_id(node).unwrap_or_else(|| panic!("no entry for node id: `{:?}`", node)) 62 ( 0.00%) } . . fn def_path_hash(&self, def_id: DefId) -> DefPathHash { . match def_id.as_local() { . Some(def_id) => self.definitions.def_path_hash(def_id), . None => self.cstore().def_path_hash(def_id), . } . } . . /// Adds a definition with a parent definition. 285 ( 0.00%) fn create_def( . &mut self, . parent: LocalDefId, . node_id: ast::NodeId, . data: DefPathData, . expn_id: ExpnId, . span: Span, . ) -> LocalDefId { 38 ( 0.00%) assert!( 38 ( 0.00%) !self.node_id_to_def_id.contains_key(&node_id), . "adding a def'n for node-id {:?} and data {:?} but a previous def'n exists: {:?}", . node_id, . data, . self.definitions.def_key(self.node_id_to_def_id[&node_id]), . ); . . // Find the next free disambiguator for this key. 19 ( 0.00%) let next_disambiguator = &mut self.next_disambiguator; . let next_disambiguator = |parent, data| { 95 ( 0.00%) let next_disamb = next_disambiguator.entry((parent, data)).or_insert(0); 19 ( 0.00%) let disambiguator = *next_disamb; 19 ( 0.00%) *next_disamb = next_disamb.checked_add(1).expect("disambiguator overflow"); . disambiguator . }; . 190 ( 0.00%) let def_id = self.definitions.create_def(parent, data, expn_id, next_disambiguator, span); . . // Some things for which we allocate `LocalDefId`s don't correspond to . // anything in the AST, so they don't have a `NodeId`. For these cases . // we don't need a mapping from `NodeId` to `LocalDefId`. 57 ( 0.00%) if node_id != ast::DUMMY_NODE_ID { . debug!("create_def: def_id_to_node_id[{:?}] <-> {:?}", def_id, node_id); . self.node_id_to_def_id.insert(node_id, def_id); . } 57 ( 0.00%) assert_eq!(self.def_id_to_node_id.push(node_id), def_id); . . def_id 171 ( 0.00%) } . } . . impl<'a> Resolver<'a> { 16 ( 0.00%) pub fn new( . session: &'a Session, . krate: &Crate, . crate_name: &str, . metadata_loader: Box, . arenas: &'a ResolverArenas<'a>, . ) -> Resolver<'a> { . let root_def_id = CRATE_DEF_ID.to_def_id(); . let mut module_map = FxHashMap::default(); 14 ( 0.00%) let graph_root = arenas.new_module( . None, . ModuleKind::Def(DefKind::Mod, root_def_id, kw::Empty), 1 ( 0.00%) ExpnId::root(), 1 ( 0.00%) krate.span, 2 ( 0.00%) session.contains_name(&krate.attrs, sym::no_implicit_prelude), . &mut module_map, . ); 12 ( 0.00%) let empty_module = arenas.new_module( . None, . ModuleKind::Def(DefKind::Mod, root_def_id, kw::Empty), 1 ( 0.00%) ExpnId::root(), . DUMMY_SP, . true, . &mut FxHashMap::default(), . ); . 4 ( 0.00%) let definitions = Definitions::new(session.local_stable_crate_id(), krate.span); 2 ( 0.00%) let root = definitions.get_root_def(); . . let mut visibilities = FxHashMap::default(); . visibilities.insert(CRATE_DEF_ID, ty::Visibility::Public); . . let mut def_id_to_node_id = IndexVec::default(); 2 ( 0.00%) assert_eq!(def_id_to_node_id.push(CRATE_NODE_ID), root); . let mut node_id_to_def_id = FxHashMap::default(); . node_id_to_def_id.insert(CRATE_NODE_ID, root); . . let mut invocation_parents = FxHashMap::default(); . invocation_parents.insert(LocalExpnId::ROOT, (root, ImplTraitContext::Existential)); . 3 ( 0.00%) let mut extern_prelude: FxHashMap> = session . .opts . .externs . .iter() 1 ( 0.00%) .filter(|(_, entry)| entry.add_prelude) 1 ( 0.00%) .map(|(name, _)| (Ident::from_str(name), Default::default())) . .collect(); . 9 ( 0.00%) if !session.contains_name(&krate.attrs, sym::no_core) { . extern_prelude.insert(Ident::with_dummy_span(sym::core), Default::default()); 7 ( 0.00%) if !session.contains_name(&krate.attrs, sym::no_std) { . extern_prelude.insert(Ident::with_dummy_span(sym::std), Default::default()); . } . } . 8 ( 0.00%) let (registered_attrs, registered_tools) = 4 ( 0.00%) macros::registered_attrs_and_tools(session, &krate.attrs); . . let features = session.features_untracked(); . 237 ( 0.00%) let mut resolver = Resolver { . session, . 2 ( 0.00%) definitions, . . // The outermost module has def ID 0; this is not reflected in the . // AST. . graph_root, . prelude: None, 4 ( 0.00%) extern_prelude, . . has_self: FxHashSet::default(), . field_names: FxHashMap::default(), . . determined_imports: Vec::new(), . indeterminate_imports: Vec::new(), . . last_import_segment: false, -- line 1343 ---------------------------------------- -- line 1347 ---------------------------------------- . partial_res_map: Default::default(), . import_res_map: Default::default(), . label_res_map: Default::default(), . extern_crate_map: Default::default(), . reexport_map: FxHashMap::default(), . trait_map: NodeMap::default(), . underscore_disambiguator: 0, . empty_module, 4 ( 0.00%) module_map, . block_map: Default::default(), . binding_parent_modules: FxHashMap::default(), . ast_transform_scopes: FxHashMap::default(), . . glob_map: Default::default(), 4 ( 0.00%) visibilities, . used_imports: FxHashSet::default(), . maybe_unused_trait_imports: Default::default(), . maybe_unused_extern_crates: Vec::new(), . . privacy_errors: Vec::new(), . ambiguity_errors: Vec::new(), . use_injections: Vec::new(), . macro_expanded_macro_export_errors: BTreeSet::new(), -- line 1369 ---------------------------------------- -- line 1372 ---------------------------------------- . dummy_binding: arenas.alloc_name_binding(NameBinding { . kind: NameBindingKind::Res(Res::Err, false), . ambiguity: None, . expansion: LocalExpnId::ROOT, . span: DUMMY_SP, . vis: ty::Visibility::Public, . }), . 6 ( 0.00%) crate_loader: CrateLoader::new(session, metadata_loader, crate_name), . macro_names: FxHashSet::default(), . builtin_macros: Default::default(), 4 ( 0.00%) registered_attrs, 4 ( 0.00%) registered_tools, . macro_use_prelude: FxHashMap::default(), . all_macros: FxHashMap::default(), . macro_map: FxHashMap::default(), 7 ( 0.00%) dummy_ext_bang: Lrc::new(SyntaxExtension::dummy_bang(session.edition())), 6 ( 0.00%) dummy_ext_derive: Lrc::new(SyntaxExtension::dummy_derive(session.edition())), 5 ( 0.00%) non_macro_attr: Lrc::new(SyntaxExtension::non_macro_attr(session.edition())), . invocation_parent_scopes: Default::default(), . output_macro_rules_scopes: Default::default(), . helper_attrs: Default::default(), . derive_data: Default::default(), . local_macro_def_scopes: FxHashMap::default(), . name_already_seen: FxHashMap::default(), . potentially_unused_imports: Vec::new(), . struct_constructors: Default::default(), -- line 1398 ---------------------------------------- -- line 1405 ---------------------------------------- . active_features: features . .declared_lib_features . .iter() . .map(|(feat, ..)| *feat) . .chain(features.declared_lang_features.iter().map(|(feat, ..)| *feat)) . .collect(), . lint_buffer: LintBuffer::default(), . next_node_id: CRATE_NODE_ID, 4 ( 0.00%) node_id_to_def_id, 4 ( 0.00%) def_id_to_node_id, . placeholder_field_indices: Default::default(), 4 ( 0.00%) invocation_parents, . next_disambiguator: Default::default(), . trait_impl_items: Default::default(), . legacy_const_generic_args: Default::default(), . item_generics_num_lifetimes: Default::default(), . main_def: Default::default(), . trait_impls: Default::default(), . proc_macros: Default::default(), . confused_type_with_std_module: Default::default(), . access_levels: Default::default(), . }; . . let root_parent_scope = ParentScope::module(graph_root, &resolver); . resolver.invocation_parent_scopes.insert(LocalExpnId::ROOT, root_parent_scope); . . resolver 9 ( 0.00%) } . . fn new_module( . &mut self, . parent: Option>, . kind: ModuleKind, . expn_id: ExpnId, . span: Span, . no_implicit_prelude: bool, . ) -> Module<'a> { 1 ( 0.00%) let module_map = &mut self.module_map; 1,782 ( 0.00%) self.arenas.new_module(parent, kind, expn_id, span, no_implicit_prelude, module_map) . } . . pub fn next_node_id(&mut self) -> NodeId { . let next = 227 ( 0.00%) self.next_node_id.as_u32().checked_add(1).expect("input too large; ran out of NodeIds"); . mem::replace(&mut self.next_node_id, ast::NodeId::from_u32(next)) . } . . pub fn lint_buffer(&mut self) -> &mut LintBuffer { 3 ( 0.00%) &mut self.lint_buffer 3 ( 0.00%) } . 1 ( 0.00%) pub fn arenas() -> ResolverArenas<'a> { . Default::default() 1 ( 0.00%) } . 9 ( 0.00%) pub fn into_outputs(self) -> ResolverOutputs { . let proc_macros = self.proc_macros.iter().map(|id| self.local_def_id(*id)).collect(); 1 ( 0.00%) let definitions = self.definitions; 4 ( 0.00%) let visibilities = self.visibilities; 4 ( 0.00%) let extern_crate_map = self.extern_crate_map; 4 ( 0.00%) let reexport_map = self.reexport_map; 4 ( 0.00%) let maybe_unused_trait_imports = self.maybe_unused_trait_imports; 4 ( 0.00%) let maybe_unused_extern_crates = self.maybe_unused_extern_crates; 4 ( 0.00%) let glob_map = self.glob_map; 6 ( 0.00%) let main_def = self.main_def; 4 ( 0.00%) let confused_type_with_std_module = self.confused_type_with_std_module; 6 ( 0.00%) let access_levels = self.access_levels; 37 ( 0.00%) ResolverOutputs { 2 ( 0.00%) definitions, 11 ( 0.00%) cstore: Box::new(self.crate_loader.into_cstore()), 4 ( 0.00%) visibilities, 4 ( 0.00%) access_levels, 4 ( 0.00%) extern_crate_map, 4 ( 0.00%) reexport_map, 4 ( 0.00%) glob_map, 4 ( 0.00%) maybe_unused_trait_imports, 4 ( 0.00%) maybe_unused_extern_crates, . extern_prelude: self . .extern_prelude . .iter() 3 ( 0.00%) .map(|(ident, entry)| (ident.name, entry.introduced_by_item)) . .collect(), 6 ( 0.00%) main_def, 4 ( 0.00%) trait_impls: self.trait_impls, 4 ( 0.00%) proc_macros, 4 ( 0.00%) confused_type_with_std_module, 5 ( 0.00%) registered_tools: self.registered_tools, . } 19 ( 0.00%) } . . pub fn clone_outputs(&self) -> ResolverOutputs { . let proc_macros = self.proc_macros.iter().map(|id| self.local_def_id(*id)).collect(); . ResolverOutputs { . definitions: self.definitions.clone(), . access_levels: self.access_levels.clone(), . cstore: Box::new(self.cstore().clone()), . visibilities: self.visibilities.clone(), -- line 1501 ---------------------------------------- -- line 1513 ---------------------------------------- . trait_impls: self.trait_impls.clone(), . proc_macros, . confused_type_with_std_module: self.confused_type_with_std_module.clone(), . registered_tools: self.registered_tools.clone(), . } . } . . pub fn cstore(&self) -> &CStore { 12,984 ( 0.02%) self.crate_loader.cstore() . } . . fn dummy_ext(&self, macro_kind: MacroKind) -> Lrc { . match macro_kind { . MacroKind::Bang => self.dummy_ext_bang.clone(), . MacroKind::Derive => self.dummy_ext_derive.clone(), . MacroKind::Attr => self.non_macro_attr.clone(), . } -- line 1529 ---------------------------------------- -- line 1545 ---------------------------------------- . match ctxt.outer_expn_data().macro_def_id { . Some(def_id) => return def_id, . None => ctxt.remove_mark(), . }; . } . } . . /// Entry point to crate resolution. 2 ( 0.00%) pub fn resolve_crate(&mut self, krate: &Crate) { 4 ( 0.00%) self.session.time("resolve_crate", || { 3 ( 0.00%) self.session.time("finalize_imports", || ImportResolver { r: self }.finalize_imports()); . self.session.time("resolve_access_levels", || { 3 ( 0.00%) AccessLevelsVisitor::compute_access_levels(self, krate) . }); 2 ( 0.00%) self.session.time("finalize_macro_resolutions", || self.finalize_macro_resolutions()); 3 ( 0.00%) self.session.time("late_resolve_crate", || self.late_resolve_crate(krate)); 2 ( 0.00%) self.session.time("resolve_main", || self.resolve_main()); 3 ( 0.00%) self.session.time("resolve_check_unused", || self.check_unused(krate)); 3 ( 0.00%) self.session.time("resolve_report_errors", || self.report_errors(krate)); 4 ( 0.00%) self.session.time("resolve_postprocess", || self.crate_loader.postprocess(krate)); . }); . } . 36 ( 0.00%) pub fn traits_in_scope( . &mut self, . current_trait: Option>, . parent_scope: &ParentScope<'a>, . ctxt: SyntaxContext, . assoc_item: Option<(Symbol, Namespace)>, . ) -> Vec { . let mut found_traits = Vec::new(); . 6 ( 0.00%) if let Some(module) = current_trait { . if self.trait_may_have_item(Some(module), assoc_item) { . let def_id = module.def_id(); . found_traits.push(TraitCandidate { def_id, import_ids: smallvec![] }); . } . } . . self.visit_scopes(ScopeSet::All(TypeNS, false), parent_scope, ctxt, |this, scope, _, _| { . match scope { . Scope::Module(module, _) => { . this.traits_in_module(module, assoc_item, &mut found_traits); . } . Scope::StdLibPrelude => { 9 ( 0.00%) if let Some(module) = this.prelude { . this.traits_in_module(module, assoc_item, &mut found_traits); . } . } . Scope::ExternPrelude | Scope::ToolPrelude | Scope::BuiltinTypes => {} . _ => unreachable!(), . } . None::<()> . }); . . found_traits 24 ( 0.00%) } . . fn traits_in_module( . &mut self, . module: Module<'a>, . assoc_item: Option<(Symbol, Namespace)>, . found_traits: &mut Vec, . ) { . module.ensure_traits(self); . let traits = module.traits.borrow(); 150 ( 0.00%) for (trait_name, trait_binding) in traits.as_ref().unwrap().iter() { . if self.trait_may_have_item(trait_binding.module(), assoc_item) { . let def_id = trait_binding.res().def_id(); . let import_ids = self.find_transitive_imports(&trait_binding.kind, *trait_name); . found_traits.push(TraitCandidate { def_id, import_ids }); . } . } . } . -- line 1619 ---------------------------------------- -- line 1622 ---------------------------------------- . // optimization, proper hygienic type-based resolution of associated items is done in typeck. . // We don't reject trait aliases (`trait_module == None`) because we don't have access to their . // associated items. . fn trait_may_have_item( . &mut self, . trait_module: Option>, . assoc_item: Option<(Symbol, Namespace)>, . ) -> bool { 78 ( 0.00%) match (trait_module, assoc_item) { . (Some(trait_module), Some((name, ns))) => { 153 ( 0.00%) self.resolutions(trait_module).borrow().iter().any(|resolution| { . let (&BindingKey { ident: assoc_ident, ns: assoc_ns, .. }, _) = resolution; 576 ( 0.00%) assoc_ns == ns && assoc_ident.name == name . }) . } . _ => true, . } . } . . fn find_transitive_imports( . &mut self, -- line 1642 ---------------------------------------- -- line 1650 ---------------------------------------- . self.add_to_glob_map(&import, trait_name); . import_ids.push(id); . kind = &binding.kind; . } . import_ids . } . . fn new_key(&mut self, ident: Ident, ns: Namespace) -> BindingKey { 33,269 ( 0.04%) let ident = ident.normalize_to_macros_2_0(); 5,629 ( 0.01%) let disambiguator = if ident.name == kw::Underscore { . self.underscore_disambiguator += 1; . self.underscore_disambiguator . } else { . 0 . }; . BindingKey { ident, ns, disambiguator } . } . 45,696 ( 0.06%) fn resolutions(&mut self, module: Module<'a>) -> &'a Resolutions<'a> { 5,712 ( 0.01%) if module.populate_on_access.get() { . module.populate_on_access.set(false); . self.build_reduced_graph_external(module); . } 5,712 ( 0.01%) &module.lazy_resolutions 51,408 ( 0.06%) } . 50,661 ( 0.06%) fn resolution( . &mut self, . module: Module<'a>, . key: BindingKey, . ) -> &'a RefCell> { 16,887 ( 0.02%) *self . .resolutions(module) . .borrow_mut() 33,774 ( 0.04%) .entry(key) 11,258 ( 0.01%) .or_insert_with(|| self.arenas.alloc_name_resolution()) 45,032 ( 0.06%) } . 704 ( 0.00%) fn record_use( . &mut self, . ident: Ident, . used_binding: &'a NameBinding<'a>, . is_lexical_scope: bool, . ) { 192 ( 0.00%) if let Some((b2, kind)) = used_binding.ambiguity { . self.ambiguity_errors.push(AmbiguityError { . kind, . ident, . b1: used_binding, . b2, . misc1: AmbiguityErrorMisc::None, . misc2: AmbiguityErrorMisc::None, . }); . } 138 ( 0.00%) if let NameBindingKind::Import { import, binding, ref used } = used_binding.kind { . // Avoid marking `extern crate` items that refer to a name from extern prelude, . // but not introduce it, as used if they are accessed from lexical scope. 10 ( 0.00%) if is_lexical_scope { . if let Some(entry) = self.extern_prelude.get(&ident.normalize_to_macros_2_0()) { . if let Some(crate_item) = entry.extern_crate_item { . if ptr::eq(used_binding, crate_item) && !entry.introduced_by_item { . return; . } . } . } . } . used.set(true); . import.used.set(true); 5 ( 0.00%) self.used_imports.insert(import.id); 25 ( 0.00%) self.add_to_glob_map(&import, ident); 30 ( 0.00%) self.record_use(ident, binding, false); . } 512 ( 0.00%) } . . #[inline] 15 ( 0.00%) fn add_to_glob_map(&mut self, import: &Import<'_>, ident: Ident) { 5 ( 0.00%) if import.is_glob() { . let def_id = self.local_def_id(import.id); . self.glob_map.entry(def_id).or_default().insert(ident.name); . } 20 ( 0.00%) } . . /// A generic scope visitor. . /// Visits scopes in order to resolve some identifier in them or perform other actions. . /// If the callback returns `Some` result, we stop visiting scopes and return it. . fn visit_scopes( . &mut self, . scope_set: ScopeSet<'a>, . parent_scope: &ParentScope<'a>, -- line 1738 ---------------------------------------- -- line 1780 ---------------------------------------- . // ambiguities with `macro_rules`. . // 4. `macro_use` prelude (open, the open part is from macro expansions, not controlled). . // 4a. User-defined prelude from macro-use . // (open, the open part is from macro expansions, not controlled). . // 4b. "Standard library prelude" part implemented through `macro-use` (closed, controlled). . // 4c. Standard library prelude (de-facto closed, controlled). . // 6. Language prelude: builtin attributes (closed, controlled). . 513 ( 0.00%) let rust_2015 = ctxt.edition() == Edition::Edition2015; . let (ns, macro_kind, is_absolute_path) = match scope_set { . ScopeSet::All(ns, _) => (ns, None, false), . ScopeSet::AbsolutePath(ns) => (ns, None, true), . ScopeSet::Macro(macro_kind) => (MacroNS, Some(macro_kind), false), . ScopeSet::Late(ns, ..) => (ns, None, false), . }; 1,568 ( 0.00%) let module = match scope_set { . // Start with the specified module. . ScopeSet::Late(_, module, _) => module, . // Jump out of trait or enum modules, they do not act as scopes. 30 ( 0.00%) _ => parent_scope.module.nearest_item_scope(), . }; 112 ( 0.00%) let mut scope = match ns { 280 ( 0.00%) _ if is_absolute_path => Scope::CrateRoot, . TypeNS | ValueNS => Scope::Module(module, None), 81 ( 0.00%) MacroNS => Scope::DeriveHelpers(parent_scope.expansion), . }; 118 ( 0.00%) let mut ctxt = ctxt.normalize_to_macros_2_0(); 260 ( 0.00%) let mut use_prelude = !module.no_implicit_prelude; . . loop { 2,215 ( 0.00%) let visit = match scope { . // Derive helpers are not in scope when resolving derives in the same container. . Scope::DeriveHelpers(expn_id) => { 87 ( 0.00%) !(expn_id == parent_scope.expansion && macro_kind == Some(MacroKind::Derive)) . } . Scope::DeriveHelpersCompat => true, . Scope::MacroRules(macro_rules_scope) => { . // Use "path compression" on `macro_rules` scope chains. This is an optimization . // used to avoid long scope chains, see the comments on `MacroRulesScopeRef`. . // As another consequence of this optimization visitors never observe invocation . // scopes for macros that were already expanded. 62 ( 0.00%) while let MacroRulesScope::Invocation(invoc_id) = macro_rules_scope.get() { . if let Some(next_scope) = self.output_macro_rules_scopes.get(&invoc_id) { . macro_rules_scope.set(next_scope.get()); . } else { . break; . } . } . true . } . Scope::CrateRoot => true, . Scope::Module(..) => true, 27 ( 0.00%) Scope::RegisteredAttrs => use_prelude, . Scope::MacroUsePrelude => use_prelude || rust_2015, . Scope::BuiltinAttrs => true, 6 ( 0.00%) Scope::ExternPrelude => use_prelude || is_absolute_path, 2 ( 0.00%) Scope::ToolPrelude => use_prelude, 264 ( 0.00%) Scope::StdLibPrelude => use_prelude || ns == MacroNS, . Scope::BuiltinTypes => true, . }; . 91 ( 0.00%) if visit { 262 ( 0.00%) if let break_result @ Some(..) = visitor(self, scope, use_prelude, ctxt) { . return break_result; . } . } . 739 ( 0.00%) scope = match scope { . Scope::DeriveHelpers(LocalExpnId::ROOT) => Scope::DeriveHelpersCompat, . Scope::DeriveHelpers(expn_id) => { . // Derive helpers are not visible to code generated by bang or derive macros. . let expn_data = expn_id.expn_data(); 117 ( 0.00%) match expn_data.kind { . ExpnKind::Root . | ExpnKind::Macro(MacroKind::Bang | MacroKind::Derive, _) => { . Scope::DeriveHelpersCompat . } 6 ( 0.00%) _ => Scope::DeriveHelpers(expn_data.parent.expect_local()), . } . } 81 ( 0.00%) Scope::DeriveHelpersCompat => Scope::MacroRules(parent_scope.macro_rules), 54 ( 0.00%) Scope::MacroRules(macro_rules_scope) => match macro_rules_scope.get() { . MacroRulesScope::Binding(binding) => { . Scope::MacroRules(binding.parent_macro_rules_scope) . } . MacroRulesScope::Invocation(invoc_id) => { . Scope::MacroRules(self.invocation_parent_scopes[&invoc_id].macro_rules) . } . MacroRulesScope::Empty => Scope::Module(module, None), . }, -- line 1869 ---------------------------------------- -- line 1870 ---------------------------------------- . Scope::CrateRoot => match ns { . TypeNS => { . ctxt.adjust(ExpnId::root()); . Scope::ExternPrelude . } . ValueNS | MacroNS => break, . }, . Scope::Module(module, prev_lint_id) => { 222 ( 0.00%) use_prelude = !module.no_implicit_prelude; . let derive_fallback_lint_id = match scope_set { . ScopeSet::Late(.., lint_id) => lint_id, . _ => None, . }; 345 ( 0.00%) match self.hygienic_lexical_parent(module, &mut ctxt, derive_fallback_lint_id) { . Some((parent_module, lint_id)) => { . Scope::Module(parent_module, lint_id.or(prev_lint_id)) . } . None => { 233 ( 0.00%) ctxt.adjust(ExpnId::root()); 168 ( 0.00%) match ns { . TypeNS => Scope::ExternPrelude, . ValueNS => Scope::StdLibPrelude, . MacroNS => Scope::RegisteredAttrs, . } . } . } . } . Scope::RegisteredAttrs => Scope::MacroUsePrelude, . Scope::MacroUsePrelude => Scope::StdLibPrelude, . Scope::BuiltinAttrs => break, // nowhere else to search 4 ( 0.00%) Scope::ExternPrelude if is_absolute_path => break, . Scope::ExternPrelude => Scope::ToolPrelude, . Scope::ToolPrelude => Scope::StdLibPrelude, 140 ( 0.00%) Scope::StdLibPrelude => match ns { . TypeNS => Scope::BuiltinTypes, . ValueNS => break, // nowhere else to search . MacroNS => Scope::BuiltinAttrs, . }, . Scope::BuiltinTypes => break, // nowhere else to search . }; . } . -- line 1911 ---------------------------------------- -- line 1924 ---------------------------------------- . /// let g = || {}; . /// fn g() {} . /// g(); // This resolves to the local variable `g` since it shadows the item. . /// } . /// ``` . /// . /// Invariant: This must only be called during main resolution, not during . /// import resolution. 450 ( 0.00%) fn resolve_ident_in_lexical_scope( . &mut self, . mut ident: Ident, . ns: Namespace, . parent_scope: &ParentScope<'a>, . record_used_id: Option, . path_span: Span, . ribs: &[Rib<'a>], . ) -> Option> { 90 ( 0.00%) assert!(ns == TypeNS || ns == ValueNS); . let orig_ident = ident; 315 ( 0.00%) if ident.name == kw::Empty { . return Some(LexicalScopeBinding::Res(Res::Err)); . } . let (general_span, normalized_span) = if ident.name == kw::SelfUpper { . // FIXME(jseyfried) improve `Self` hygiene . let empty_span = ident.span.with_ctxt(SyntaxContext::root()); . (empty_span, empty_span) 43 ( 0.00%) } else if ns == TypeNS { 90 ( 0.00%) let normalized_span = ident.span.normalize_to_macros_2_0(); . (normalized_span, normalized_span) . } else { 125 ( 0.00%) (ident.span.normalize_to_macro_rules(), ident.span.normalize_to_macros_2_0()) . }; . ident.span = general_span; . let normalized_ident = Ident { span: normalized_span, ..ident }; . . // Walk backwards up the ribs in scope. . let record_used = record_used_id.is_some(); 135 ( 0.00%) let mut module = self.graph_root; . for i in (0..ribs.len()).rev() { . debug!("walk rib\n{:?}", ribs[i].bindings); . // Use the rib kind to determine whether we are resolving parameters . // (macro 2.0 hygiene) or local variables (`macro_rules` hygiene). 165 ( 0.00%) let rib_ident = if ribs[i].kind.contains_params() { normalized_ident } else { ident }; . if let Some((original_rib_ident_def, res)) = ribs[i].bindings.get_key_value(&rib_ident) . { . // The ident resolves to a type parameter or local variable. 120 ( 0.00%) return Some(LexicalScopeBinding::Res(self.validate_res_from_ribs( . i, 20 ( 0.00%) rib_ident, 50 ( 0.00%) *res, . record_used, . path_span, . *original_rib_ident_def, . ribs, . ))); . } . 897 ( 0.00%) module = match ribs[i].kind { 47 ( 0.00%) ModuleRibKind(module) => module, . MacroDefinition(def) if def == self.macro_def(ident.span.ctxt()) => { . // If an invocation of this macro created `ident`, give up on `ident` . // and switch to `ident`'s source from the macro definition. . ident.span.remove_mark(); . continue; . } . _ => continue, . }; . 141 ( 0.00%) match module.kind { . ModuleKind::Block(..) => {} // We can see through blocks . _ => break, . } . . let item = self.resolve_ident_in_module_unadjusted( . ModuleOrUniformRoot::Module(module), . ident, . ns, . parent_scope, . record_used, . path_span, . ); . if let Ok(binding) = item { . // The ident resolves to an item. 12 ( 0.00%) return Some(LexicalScopeBinding::Item(binding)); . } . } 527 ( 0.00%) self.early_resolve_ident_in_lexical_scope( . orig_ident, . ScopeSet::Late(ns, module, record_used_id), . parent_scope, . record_used, . record_used, . path_span, . ) . .ok() . .map(LexicalScopeBinding::Item) 405 ( 0.00%) } . 627 ( 0.00%) fn hygienic_lexical_parent( . &mut self, . module: Module<'a>, . ctxt: &mut SyntaxContext, . derive_fallback_lint_id: Option, . ) -> Option<(Module<'a>, Option)> { 399 ( 0.00%) if !module.expansion.outer_expn_is_descendant_of(*ctxt) { 66 ( 0.00%) return Some((self.expn_def_scope(ctxt.remove_mark()), None)); . } . 92 ( 0.00%) if let ModuleKind::Block(..) = module.kind { . return Some((module.parent.unwrap().nearest_item_scope(), None)); . } . . // We need to support the next case under a deprecation warning . // ``` . // struct MyStruct; . // ---- begin: this comes from a proc macro derive . // mod implementation_details { . // // Note that `MyStruct` is not in scope here. . // impl SomeTrait for MyStruct { ... } . // } . // ---- end . // ``` . // So we have to fall back to the module's parent during lexical resolution in this case. 46 ( 0.00%) if derive_fallback_lint_id.is_some() { 6 ( 0.00%) if let Some(parent) = module.parent { . // Inner module is inside the macro, parent module is outside of the macro. . if module.expansion != parent.expansion . && module.expansion.is_descendant_of(parent.expansion) . { . // The macro is a proc macro derive . if let Some(def_id) = module.expansion.expn_data().macro_def_id { . let ext = self.get_macro_by_def_id(def_id); . if ext.builtin_name.is_none() -- line 2056 ---------------------------------------- -- line 2060 ---------------------------------------- . return Some((parent, derive_fallback_lint_id)); . } . } . } . } . } . . None 570 ( 0.00%) } . . fn resolve_ident_in_module( . &mut self, . module: ModuleOrUniformRoot<'a>, . ident: Ident, . ns: Namespace, . parent_scope: &ParentScope<'a>, . record_used: bool, . path_span: Span, . ) -> Result<&'a NameBinding<'a>, Determinacy> { 342 ( 0.00%) self.resolve_ident_in_module_ext(module, ident, ns, parent_scope, record_used, path_span) . .map_err(|(determinacy, _)| determinacy) . } . 760 ( 0.00%) fn resolve_ident_in_module_ext( . &mut self, . module: ModuleOrUniformRoot<'a>, . mut ident: Ident, . ns: Namespace, . parent_scope: &ParentScope<'a>, . record_used: bool, . path_span: Span, . ) -> Result<&'a NameBinding<'a>, (Determinacy, Weak)> { . let tmp_parent_scope; . let mut adjusted_parent_scope = parent_scope; . match module { . ModuleOrUniformRoot::Module(m) => { 234 ( 0.00%) if let Some(def) = ident.span.normalize_to_macros_2_0_and_adjust(m.expansion) { 110 ( 0.00%) tmp_parent_scope = 132 ( 0.00%) ParentScope { module: self.expn_def_scope(def), ..*parent_scope }; . adjusted_parent_scope = &tmp_parent_scope; . } . } . ModuleOrUniformRoot::ExternPrelude => { . ident.span.normalize_to_macros_2_0_and_adjust(ExpnId::root()); . } . ModuleOrUniformRoot::CrateRootAndExternPrelude | ModuleOrUniformRoot::CurrentScope => { . // No adjustments . } . } 428 ( 0.00%) self.resolve_ident_in_module_unadjusted_ext( . module, 78 ( 0.00%) ident, . ns, . adjusted_parent_scope, . false, . record_used, . path_span, . ) 266 ( 0.00%) } . 200 ( 0.00%) fn resolve_crate_root(&mut self, ident: Ident) -> Module<'a> { . debug!("resolve_crate_root({:?})", ident); 20 ( 0.00%) let mut ctxt = ident.span.ctxt(); 20 ( 0.00%) let mark = if ident.name == kw::DollarCrate { . // When resolving `$crate` from a `macro_rules!` invoked in a `macro`, . // we don't want to pretend that the `macro_rules!` definition is in the `macro` . // as described in `SyntaxContext::apply_mark`, so we ignore prepended opaque marks. . // FIXME: This is only a guess and it doesn't work correctly for `macro_rules!` . // definitions actually produced by `macro` and `macro` definitions produced by . // `macro_rules!`, but at least such configurations are not stable yet. 36 ( 0.00%) ctxt = ctxt.normalize_to_macro_rules(); . debug!( . "resolve_crate_root: marks={:?}", . ctxt.marks().into_iter().map(|(i, t)| (i.expn_data(), t)).collect::>() . ); 36 ( 0.00%) let mut iter = ctxt.marks().into_iter().rev().peekable(); . let mut result = None; . // Find the last opaque mark from the end if it exists. 102 ( 0.00%) while let Some(&(mark, transparency)) = iter.peek() { . if transparency == Transparency::Opaque { . result = Some(mark); . iter.next(); . } else { . break; . } . } . debug!( . "resolve_crate_root: found opaque mark {:?} {:?}", . result, . result.map(|r| r.expn_data()) . ); . // Then find the last semi-transparent mark from the end if it exists. 54 ( 0.00%) for (mark, transparency) in iter { . if transparency == Transparency::SemiTransparent { . result = Some(mark); . } else { . break; . } . } . debug!( . "resolve_crate_root: found semi-transparent mark {:?} {:?}", . result, . result.map(|r| r.expn_data()) . ); . result . } else { . debug!("resolve_crate_root: not DollarCrate"); 2 ( 0.00%) ctxt = ctxt.normalize_to_macros_2_0(); 14 ( 0.00%) ctxt.adjust(ExpnId::root()) . }; 40 ( 0.00%) let module = match mark { 90 ( 0.00%) Some(def) => self.expn_def_scope(def), . None => { . debug!( . "resolve_crate_root({:?}): found no mark (ident.span = {:?})", . ident, ident.span . ); 4 ( 0.00%) return self.graph_root; . } . }; . let module = self.expect_module( . module.opt_def_id().map_or(LOCAL_CRATE, |def_id| def_id.krate).as_def_id(), . ); . debug!( . "resolve_crate_root({:?}): got module {:?} ({:?}) (ident.span = {:?})", . ident, . module, . module.kind.name(), . ident.span . ); . module 140 ( 0.00%) } . . fn resolve_self(&mut self, ctxt: &mut SyntaxContext, module: Module<'a>) -> Module<'a> { . let mut module = self.expect_module(module.nearest_parent_mod()); . while module.span.ctxt().normalize_to_macros_2_0() != *ctxt { . let parent = module.parent.unwrap_or_else(|| self.expn_def_scope(ctxt.remove_mark())); . module = self.expect_module(parent.nearest_parent_mod()); . } . module -- line 2199 ---------------------------------------- -- line 2203 ---------------------------------------- . &mut self, . path: &[Segment], . opt_ns: Option, // `None` indicates a module path in import . parent_scope: &ParentScope<'a>, . record_used: bool, . path_span: Span, . crate_lint: CrateLint, . ) -> PathResult<'a> { 21 ( 0.00%) self.resolve_path_with_ribs( . path, . opt_ns, . parent_scope, . record_used, . path_span, . crate_lint, . None, . ) . } . 750 ( 0.00%) fn resolve_path_with_ribs( . &mut self, . path: &[Segment], . opt_ns: Option, // `None` indicates a module path in import . parent_scope: &ParentScope<'a>, . record_used: bool, . path_span: Span, . crate_lint: CrateLint, . ribs: Option<&PerNS>>>, . ) -> PathResult<'a> { 50 ( 0.00%) let mut module = None; . let mut allow_super = true; . let mut second_binding = None; . . debug!( . "resolve_path(path={:?}, opt_ns={:?}, record_used={:?}, \ . path_span={:?}, crate_lint={:?})", . path, opt_ns, record_used, path_span, crate_lint, . ); . 528 ( 0.00%) for (i, &Segment { ident, id, has_generic_args: _ }) in path.iter().enumerate() { . debug!("resolve_path ident {} {:?} {:?}", i, ident, id); 581 ( 0.00%) let record_segment_res = |this: &mut Self, res| { 141 ( 0.00%) if record_used { 220 ( 0.00%) if let Some(id) = id { 88 ( 0.00%) if !this.partial_res_map.contains_key(&id) { 76 ( 0.00%) assert!(id != ast::DUMMY_NODE_ID, "Trying to resolve dummy id"); 152 ( 0.00%) this.record_partial_res(id, PartialRes::new(res)); . } . } . } 188 ( 0.00%) }; . 212 ( 0.00%) let is_last = i == path.len() - 1; 440 ( 0.00%) let ns = if is_last { opt_ns.unwrap_or(TypeNS) } else { TypeNS }; 88 ( 0.00%) let name = ident.name; . 147 ( 0.00%) allow_super &= ns == TypeNS && (name == kw::SelfLower || name == kw::Super); . . if ns == TypeNS { 118 ( 0.00%) if allow_super && name == kw::Super { . let mut ctxt = ident.span.ctxt().normalize_to_macros_2_0(); . let self_module = match i { . 0 => Some(self.resolve_self(&mut ctxt, parent_scope.module)), . _ => match module { . Some(ModuleOrUniformRoot::Module(module)) => Some(module), . _ => None, . }, . }; -- line 2270 ---------------------------------------- -- line 2279 ---------------------------------------- . let msg = "there are too many leading `super` keywords".to_string(); . return PathResult::Failed { . span: ident.span, . label: msg, . suggestion: None, . is_error_from_last_segment: false, . }; . } 118 ( 0.00%) if i == 0 { 93 ( 0.00%) if name == kw::SelfLower { . let mut ctxt = ident.span.ctxt().normalize_to_macros_2_0(); . module = Some(ModuleOrUniformRoot::Module( . self.resolve_self(&mut ctxt, parent_scope.module), . )); . continue; . } 6 ( 0.00%) if name == kw::PathRoot && ident.span.rust_2018() { . module = Some(ModuleOrUniformRoot::ExternPrelude); . continue; . } 12 ( 0.00%) if name == kw::PathRoot && ident.span.rust_2015() && self.session.rust_2018() { . // `::a::b` from 2015 macro on 2018 global edition . module = Some(ModuleOrUniformRoot::CrateRootAndExternPrelude); . continue; . } . if name == kw::PathRoot || name == kw::Crate || name == kw::DollarCrate { . // `::a::b`, `crate::a::b` or `$crate::a::b` 52 ( 0.00%) module = Some(ModuleOrUniformRoot::Module(self.resolve_crate_root(ident))); . continue; . } . } . } . . // Report special messages for path segment keywords in wrong positions. 379 ( 0.00%) if ident.is_path_segment_keyword() && i != 0 { . let name_str = if name == kw::PathRoot { . "crate root".to_string() . } else { . format!("`{}`", name) . }; . let label = if i == 1 && path[0].ident.name == kw::PathRoot { . format!("global paths cannot start with {}", name_str) . } else { -- line 2321 ---------------------------------------- -- line 2328 ---------------------------------------- . is_error_from_last_segment: false, . }; . } . . enum FindBindingResult<'a> { . Binding(Result<&'a NameBinding<'a>, Determinacy>), . PathResult(PathResult<'a>), . } 2,400 ( 0.00%) let find_binding_in_ns = |this: &mut Self, ns| { 338 ( 0.00%) let binding = if let Some(module) = module { . this.resolve_ident_in_module( . module, 114 ( 0.00%) ident, . ns, . parent_scope, 76 ( 0.00%) record_used, 38 ( 0.00%) path_span, . ) 222 ( 0.00%) } else if ribs.is_none() || opt_ns.is_none() || opt_ns == Some(MacroNS) { . let scopes = ScopeSet::All(ns, opt_ns.is_none()); . this.early_resolve_ident_in_lexical_scope( . ident, . scopes, . parent_scope, . record_used, . record_used, . path_span, . ) . } else { 148 ( 0.00%) let record_used_id = if record_used { 27 ( 0.00%) crate_lint.node_id().or(Some(CRATE_NODE_ID)) . } else { . None . }; 539 ( 0.00%) match this.resolve_ident_in_lexical_scope( 111 ( 0.00%) ident, . ns, 37 ( 0.00%) parent_scope, . record_used_id, 74 ( 0.00%) path_span, . &ribs.unwrap()[ns], . ) { . // we found a locally-imported or available item/module 57 ( 0.00%) Some(LexicalScopeBinding::Item(binding)) => Ok(binding), . // we found a local variable or type param . Some(LexicalScopeBinding::Res(res)) 16 ( 0.00%) if opt_ns == Some(TypeNS) || opt_ns == Some(ValueNS) => . { 72 ( 0.00%) record_segment_res(this, res); 64 ( 0.00%) return FindBindingResult::PathResult(PathResult::NonModule( 56 ( 0.00%) PartialRes::with_unresolved_segments(res, path.len() - 1), . )); . } 30 ( 0.00%) _ => Err(Determinacy::determined(record_used)), . } . }; 469 ( 0.00%) FindBindingResult::Binding(binding) 600 ( 0.00%) }; 525 ( 0.00%) let binding = match find_binding_in_ns(self, ns) { 112 ( 0.00%) FindBindingResult::PathResult(x) => return x, . FindBindingResult::Binding(binding) => binding, . }; 164 ( 0.00%) match binding { . Ok(binding) => { 285 ( 0.00%) if i == 1 { . second_binding = Some(binding); . } . let res = binding.res(); 570 ( 0.00%) let maybe_assoc = opt_ns != Some(MacroNS) && PathSource::Type.is_expected(res); . if let Some(next_module) = binding.module() { 78 ( 0.00%) module = Some(ModuleOrUniformRoot::Module(next_module)); 351 ( 0.00%) record_segment_res(self, res); 126 ( 0.00%) } else if res == Res::ToolMod && i + 1 != path.len() { . if binding.is_import() { . self.session . .struct_span_err( . ident.span, . "cannot use a tool module through an import", . ) . .span_note(binding.span, "the tool module imported here") . .emit(); . } . let res = Res::NonMacroAttr(NonMacroAttrKind::Tool); . return PathResult::NonModule(PartialRes::new(res)); 90 ( 0.00%) } else if res == Res::Err { . return PathResult::NonModule(PartialRes::new(Res::Err)); 54 ( 0.00%) } else if opt_ns.is_some() && (is_last || maybe_assoc) { 126 ( 0.00%) self.lint_if_path_starts_with_module( 36 ( 0.00%) crate_lint, . path, 18 ( 0.00%) path_span, . second_binding, . ); 54 ( 0.00%) return PathResult::NonModule(PartialRes::with_unresolved_segments( 72 ( 0.00%) res, 72 ( 0.00%) path.len() - i - 1, . )); . } else { . let label = format!( . "`{}` is {} {}, not a module", . ident, . res.article(), . res.descr(), . ); -- line 2431 ---------------------------------------- -- line 2433 ---------------------------------------- . return PathResult::Failed { . span: ident.span, . label, . suggestion: None, . is_error_from_last_segment: is_last, . }; . } . } 20 ( 0.00%) Err(Undetermined) => return PathResult::Indeterminate, . Err(Determined) => { . if let Some(ModuleOrUniformRoot::Module(module)) = module { . if opt_ns.is_some() && !module.is_normal() { . return PathResult::NonModule(PartialRes::with_unresolved_segments( . module.res().unwrap(), . path.len() - i, . )); . } -- line 2449 ---------------------------------------- -- line 2612 ---------------------------------------- . label, . suggestion, . is_error_from_last_segment: is_last, . }; . } . } . } . 154 ( 0.00%) self.lint_if_path_starts_with_module(crate_lint, path, path_span, second_binding); . 84 ( 0.00%) PathResult::Module(match module { 28 ( 0.00%) Some(module) => module, . None if path.is_empty() => ModuleOrUniformRoot::CurrentScope, . _ => span_bug!(path_span, "resolve_path: non-empty path `{:?}` has no module", path), . }) 450 ( 0.00%) } . 384 ( 0.00%) fn lint_if_path_starts_with_module( . &mut self, . crate_lint: CrateLint, . path: &[Segment], . path_span: Span, . second_binding: Option<&NameBinding<'_>>, . ) { 160 ( 0.00%) let (diag_id, diag_span) = match crate_lint { . CrateLint::No => return, . CrateLint::SimplePath(id) => (id, path_span), . CrateLint::UsePath { root_id, root_span } => (root_id, root_span), . CrateLint::QPathTrait { qpath_id, qpath_span } => (qpath_id, qpath_span), . }; . 32 ( 0.00%) let first_name = match path.get(0) { . // In the 2018 edition this lint is a hard error, so nothing to do 148 ( 0.00%) Some(seg) if seg.ident.span.rust_2015() && self.session.rust_2015() => seg.ident.name, . _ => return, . }; . . // We're only interested in `use` paths which should start with . // `{{root}}` currently. 63 ( 0.00%) if first_name != kw::PathRoot { . return; . } . . match path.get(1) { . // If this import looks like `crate::...` it's already good 2 ( 0.00%) Some(Segment { ident, .. }) if ident.name == kw::Crate => return, . // Otherwise go below to see if it's an extern crate . Some(_) => {} . // If the path has length one (and it's `PathRoot` most likely) . // then we don't know whether we're gonna be importing a crate or an . // item in our crate. Defer this lint to elsewhere . None => return, . } . . // If the first element of our path was actually resolved to an . // `ExternCrate` (also used for `crate::...`) then no need to issue a . // warning, this looks all good! 4 ( 0.00%) if let Some(binding) = second_binding { 6 ( 0.00%) if let NameBindingKind::Import { import, .. } = binding.kind { . // Careful: we still want to rewrite paths from renamed extern crates. 8 ( 0.00%) if let ImportKind::ExternCrate { source: None, .. } = import.kind { . return; . } . } . } . . let diag = BuiltinLintDiagnostics::AbsPathWithModule(diag_span); . self.lint_buffer.buffer_lint_with_diagnostic( . lint::builtin::ABSOLUTE_PATHS_NOT_STARTING_WITH_CRATE, . diag_id, . diag_span, . "absolute paths must start with `self`, `super`, \ . `crate`, or an external crate name in the 2018 edition", . diag, . ); 256 ( 0.00%) } . . // Validate a local resolution (from ribs). . fn validate_res_from_ribs( . &mut self, . rib_index: usize, . rib_ident: Ident, . mut res: Res, . record_used: bool, . span: Span, . original_rib_ident_def: Ident, . all_ribs: &[Rib<'a>], . ) -> Res { . const CG_BUG_STR: &str = "min_const_generics resolve check didn't stop compilation"; . debug!("validate_res_from_ribs({:?})", res); 20 ( 0.00%) let ribs = &all_ribs[rib_index + 1..]; . . // An invalid forward use of a generic parameter from a previous default. 40 ( 0.00%) if let ForwardGenericParamBanRibKind = all_ribs[rib_index].kind { . if record_used { . let res_error = if rib_ident.name == kw::SelfUpper { . ResolutionError::SelfInGenericParamDefault . } else { . ResolutionError::ForwardDeclaredGenericParam . }; . self.report_error(span, res_error); . } . assert_eq!(res, Res::Err); . return Res::Err; . } . 66 ( 0.00%) match res { . Res::Local(_) => { . use ResolutionError::*; 8 ( 0.00%) let mut res_err = None; . . for rib in ribs { 92 ( 0.00%) match rib.kind { . NormalRibKind . | ClosureOrAsyncRibKind . | ModuleRibKind(..) . | MacroDefinition(..) . | ForwardGenericParamBanRibKind => { . // Nothing to do. Continue. . } . ItemRibKind(_) | FnItemRibKind | AssocItemRibKind => { . // This was an attempt to access an upvar inside a . // named function item. This is not allowed, so we . // report an error. 8 ( 0.00%) if record_used { . // We don't immediately trigger a resolve error, because . // we want certain other resolution errors (namely those . // emitted for `ConstantItemRibKind` below) to take . // precedence. . res_err = Some(CannotCaptureDynamicEnvironmentInFnItem); . } . } . ConstantItemRibKind(_, item) => { -- line 2744 ---------------------------------------- -- line 2773 ---------------------------------------- . ConstParamTyRibKind => { . if record_used { . self.report_error(span, ParamInTyOfConstParam(rib_ident.name)); . } . return Res::Err; . } . } . } 16 ( 0.00%) if let Some(res_err) = res_err { . self.report_error(span, res_err); . return Res::Err; . } . } . Res::Def(DefKind::TyParam, _) | Res::SelfTy(..) => { . for rib in ribs { 14 ( 0.00%) let has_generic_params: HasGenericParams = match rib.kind { . NormalRibKind . | ClosureOrAsyncRibKind . | AssocItemRibKind . | ModuleRibKind(..) . | MacroDefinition(..) . | ForwardGenericParamBanRibKind => { . // Nothing to do. Continue. . continue; -- line 2796 ---------------------------------------- -- line 2799 ---------------------------------------- . ConstantItemRibKind(trivial, _) => { . let features = self.session.features_untracked(); . // HACK(min_const_generics): We currently only allow `N` or `{ N }`. . if !(trivial || features.generic_const_exprs) { . // HACK(min_const_generics): If we encounter `Self` in an anonymous constant . // we can't easily tell if it's generic at this stage, so we instead remember . // this and then enforce the self type to be concrete later on. . if let Res::SelfTy(trait_def, Some((impl_def, _))) = res { 2 ( 0.00%) res = Res::SelfTy(trait_def, Some((impl_def, true))); . } else { . if record_used { . self.report_error( . span, . ResolutionError::ParamInNonTrivialAnonConst { . name: rib_ident.name, . is_type: true, . }, -- line 2815 ---------------------------------------- -- line 2912 ---------------------------------------- . ), . ); . } . return Res::Err; . } . } . _ => {} . } 40 ( 0.00%) res . } . . fn record_partial_res(&mut self, node_id: NodeId, resolution: PartialRes) { . debug!("(recording res) recording {:?} for {}", resolution, node_id); 178 ( 0.00%) if let Some(prev_res) = self.partial_res_map.insert(node_id, resolution) { . panic!("path resolved multiple times ({:?} before, {:?} now)", prev_res, resolution); . } . } . . fn record_pat_span(&mut self, node: NodeId, span: Span) { . debug!("(recording pat) recording {:?} for {:?}", node, span); . self.pat_span_map.insert(node, span); . } . . fn is_accessible_from(&self, vis: ty::Visibility, module: Module<'a>) -> bool { 426 ( 0.00%) vis.is_accessible_from(module.nearest_parent_mod(), self) . } . . fn set_binding_parent_module(&mut self, binding: &'a NameBinding<'a>, module: Module<'a>) { 21,848 ( 0.03%) if let Some(old_module) = self.binding_parent_modules.insert(PtrKey(binding), module) { . if !ptr::eq(module, old_module) { . span_bug!(binding.span, "parent module is reset for binding"); . } . } . } . . fn disambiguate_macro_rules_vs_modularized( . &self, -- line 2948 ---------------------------------------- -- line 2959 ---------------------------------------- . (Some(macro_rules), Some(modularized)) => { . macro_rules.nearest_parent_mod() == modularized.nearest_parent_mod() . && modularized.is_ancestor_of(macro_rules) . } . _ => false, . } . } . 7 ( 0.00%) fn report_errors(&mut self, krate: &Crate) { . self.report_with_use_injections(krate); . 6 ( 0.00%) for &(span_use, span_def) in &self.macro_expanded_macro_export_errors { . let msg = "macro-expanded `macro_export` macros from the current crate \ . cannot be referred to by absolute paths"; . self.lint_buffer.buffer_lint_with_diagnostic( . lint::builtin::MACRO_EXPANDED_MACRO_EXPORTS_ACCESSED_BY_ABSOLUTE_PATHS, . CRATE_NODE_ID, . span_use, . msg, . BuiltinLintDiagnostics::MacroExpandedMacroExportsAccessedByAbsolutePaths(span_def), -- line 2978 ---------------------------------------- -- line 2984 ---------------------------------------- . } . . let mut reported_spans = FxHashSet::default(); . for error in &self.privacy_errors { . if reported_spans.insert(error.dedup_span) { . self.report_privacy_error(error); . } . } 8 ( 0.00%) } . . fn report_with_use_injections(&mut self, krate: &Crate) { . for UseError { mut err, candidates, def_id, instead, suggestion } in 10 ( 0.00%) self.use_injections.drain(..) . { . let (span, found_use) = if let Some(def_id) = def_id.as_local() { . UsePlacementFinder::check(krate, self.def_id_to_node_id[def_id]) . } else { . (None, false) . }; . if !candidates.is_empty() { . diagnostics::show_candidates( -- line 3004 ---------------------------------------- -- line 3284 ---------------------------------------- . } . . return; . } . . err.span_suggestion(span, message, String::new(), Applicability::MachineApplicable); . } . 20 ( 0.00%) fn extern_prelude_get( . &mut self, . ident: Ident, . speculative: bool, . ) -> Option<&'a NameBinding<'a>> { 10 ( 0.00%) if ident.is_path_segment_keyword() { . // Make sure `self`, `super` etc produce an error when passed to here. . return None; . } 18 ( 0.00%) self.extern_prelude.get(&ident.normalize_to_macros_2_0()).cloned().and_then(|entry| { . if let Some(binding) = entry.extern_crate_item { . if !speculative && entry.introduced_by_item { . self.record_use(ident, binding, false); . } . Some(binding) . } else { . let crate_id = if !speculative { . let Some(crate_id) = -- line 3309 ---------------------------------------- -- line 3314 ---------------------------------------- . }; . let crate_root = self.expect_module(crate_id.as_def_id()); . Some( . (crate_root, ty::Visibility::Public, DUMMY_SP, LocalExpnId::ROOT) . .to_name_binding(self.arenas), . ) . } . }) 16 ( 0.00%) } . . /// Rustdoc uses this to resolve things in a recoverable way. `ResolutionError<'a>` . /// isn't something that can be returned because it can't be made to live that long, . /// and also it's a private type. Fortunately rustdoc doesn't need to know the error, . /// just that an error occurred. . // FIXME(Manishearth): intra-doc links won't get warned of epoch changes. . pub fn resolve_str_path_error( . &mut self, -- line 3330 ---------------------------------------- -- line 3422 ---------------------------------------- . #[inline] . pub fn opt_span(&self, def_id: DefId) -> Option { . def_id.as_local().map(|def_id| self.definitions.def_span(def_id)) . } . . /// Checks if an expression refers to a function marked with . /// `#[rustc_legacy_const_generics]` and returns the argument index list . /// from the attribute. 80 ( 0.00%) pub fn legacy_const_generic_args(&mut self, expr: &Expr) -> Option> { 40 ( 0.00%) if let ExprKind::Path(None, path) = &expr.kind { . // Don't perform legacy const generics rewriting if the path already . // has generic arguments. 10 ( 0.00%) if path.segments.last().unwrap().args.is_some() { . return None; . } . . let partial_res = self.partial_res_map.get(&expr.id)?; 20 ( 0.00%) if partial_res.unresolved_segments() != 0 { . return None; . } . 16 ( 0.00%) if let Res::Def(def::DefKind::Fn, def_id) = partial_res.base_res() { . // We only support cross-crate argument rewriting. Uses . // within the same crate should be updated to use the new . // const generics style. 4 ( 0.00%) if def_id.is_local() { . return None; . } . . if let Some(v) = self.legacy_const_generic_args.get(&def_id) { . return v.clone(); . } . 12 ( 0.00%) let attr = self . .cstore() 4 ( 0.00%) .item_attrs_untracked(def_id, self.session) . .find(|a| a.has_name(sym::rustc_legacy_const_generics))?; . let mut ret = Vec::new(); . for meta in attr.meta_item_list()? { . match meta.literal()?.kind { . LitKind::Int(a, _) => ret.push(a as usize), . _ => panic!("invalid arg index"), . } . } . // Cache the lookup to avoid parsing attributes for an iterm multiple times. . self.legacy_const_generic_args.insert(def_id, Some(ret.clone())); . return Some(ret); . } . } . None 90 ( 0.00%) } . 7 ( 0.00%) fn resolve_main(&mut self) { 2 ( 0.00%) let module = self.graph_root; . let ident = Ident::with_dummy_span(sym::main); . let parent_scope = &ParentScope::module(module, self); . . let name_binding = match self.resolve_ident_in_module( . ModuleOrUniformRoot::Module(module), . ident, . ValueNS, . parent_scope, -- line 3483 ---------------------------------------- -- line 3490 ---------------------------------------- . . let res = name_binding.res(); . let is_import = name_binding.is_import(); . let span = name_binding.span; . if let Res::Def(DefKind::Fn, _) = res { . self.record_use(ident, name_binding, false); . } . self.main_def = Some(MainDefinition { res, is_import, span }); 8 ( 0.00%) } . } . . fn names_to_string(names: &[Symbol]) -> String { . let mut result = String::new(); . for (i, name) in names.iter().filter(|name| **name != kw::PathRoot).enumerate() { . if i > 0 { . result.push_str("::"); . } -- line 3506 ---------------------------------------- -- line 3558 ---------------------------------------- . /// This is the "trait item" from a fully qualified path. For example, . /// we might be resolving `X::Y::Z` from a path like `::Z`. . /// The `path_span` is the span of the to the trait itself (`X::Y`). . QPathTrait { qpath_id: NodeId, qpath_span: Span }, . } . . impl CrateLint { . fn node_id(&self) -> Option { 81 ( 0.00%) match *self { . CrateLint::No => None, . CrateLint::SimplePath(id) . | CrateLint::UsePath { root_id: id, .. } . | CrateLint::QPathTrait { qpath_id: id, .. } => Some(id), . } . } . } . . pub fn provide(providers: &mut Providers) { . late::lifetimes::provide(providers); 1 ( 0.00%) } 10,506 ( 0.01%) -------------------------------------------------------------------------------- -- 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 { 29,197 ( 0.04%) 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 { 16,710 ( 0.02%) 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 { 830 ( 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 { 9,945 ( 0.01%) 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) { 1,669 ( 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) { 369 ( 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. 441 ( 0.00%) if self.capacity() > self.len { 44 ( 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(); 80 ( 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")] 5,517 ( 0.01%) 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. 3,595 ( 0.00%) 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); 1,709 ( 0.00%) self.len = len; 30 ( 0.00%) ptr::drop_in_place(s); . } 6,620 ( 0.01%) } . . /// 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. 46,834 ( 0.06%) 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. 296,807 ( 0.37%) 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()); . 7,832 ( 0.01%) self.len = new_len; 4 ( 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")] 77 ( 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); . } . 16 ( 0.00%) let len = self.len(); 28 ( 0.00%) if index > len { . assert_failed(index, len); . } . . // space for the new element 62 ( 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.) 78 ( 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); . } 62 ( 0.00%) self.set_len(len + 1); . } 66 ( 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); . } . 25 ( 0.00%) let len = self.len(); 88 ( 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. 192 ( 0.00%) ret = ptr::read(ptr); . . // Shift everything down to fill in that spot. 54 ( 0.00%) ptr::copy(ptr.offset(1), ptr, len - index - 1); . } 25 ( 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")] 964 ( 0.00%) pub fn retain(&mut self, mut f: F) . where . F: FnMut(&T) -> bool, . { 48 ( 0.00%) self.retain_mut(|elem| f(elem)); 952 ( 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, . { 127 ( 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) { 114 ( 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), 64 ( 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, . { 1,124 ( 0.00%) 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) }; 236 ( 0.00%) if !f(cur) { . // Advance early to avoid double drop if `drop_in_place` panicked. . g.processed_len += 1; . g.deleted_cnt += 1; . // SAFETY: We never touch this element again after dropped. . unsafe { ptr::drop_in_place(cur) }; . // We already advanced the counter. . if DELETED { . continue; -- line 1544 ---------------------------------------- -- 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")] 7 ( 0.00%) pub fn dedup_by(&mut self, mut same_bucket: F) . where . F: FnMut(&mut T, &mut T) -> bool, . { 1 ( 0.00%) let len = self.len(); 32 ( 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 { 30 ( 0.00%) while gap.read < len { . let read_ptr = ptr.add(gap.read); . let prev_ptr = ptr.add(gap.write.wrapping_sub(1)); . 16 ( 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 */ 10 ( 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); . } 8 ( 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")] 5 ( 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. 869,781 ( 1.09%) if self.len == self.buf.capacity() { 10,303 ( 0.01%) self.buf.reserve_for_push(self.len); . } . unsafe { 4,354 ( 0.01%) let end = self.as_mut_ptr().add(self.len); . ptr::write(end, value); 902,663 ( 1.13%) self.len += 1; . } 4 ( 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 { 5,800 ( 0.01%) if self.len == 0 { 2 ( 0.00%) None . } else { . unsafe { 4,213 ( 0.01%) self.len -= 1; 593 ( 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")] 7 ( 0.00%) pub fn append(&mut self, other: &mut Self) { . unsafe { . self.append_elements(other.as_slice() as _); . other.set_len(0); . } 6 ( 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); 344 ( 0.00%) let len = self.len(); . unsafe { ptr::copy_nonoverlapping(other as *const T, self.as_mut_ptr().add(len), count) }; 3,179 ( 0.00%) 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. . // 125 ( 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). 6 ( 0.00%) let range_slice = slice::from_raw_parts_mut(self.as_mut_ptr().add(start), end - start); 51 ( 0.00%) Drain { . tail_start: end, 6 ( 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) { 9,754 ( 0.01%) 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 { 3,549 ( 0.00%) 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); . } . 24 ( 0.00%) if at > self.len() { . assert_failed(at, self.len()); . } . 18 ( 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")] 215 ( 0.00%) pub fn resize_with(&mut self, new_len: usize, f: F) . where . F: FnMut() -> T, . { 29 ( 0.00%) let len = self.len(); 58 ( 0.00%) if new_len > len { 304 ( 0.00%) self.extend_with(new_len - len, ExtendFunc(f)); . } else { . self.truncate(new_len); . } 186 ( 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, 18 ( 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 { 114 ( 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. 1,002 ( 0.00%) fn extend_with>(&mut self, n: usize, mut value: E) { . self.reserve(n); . . unsafe { 156 ( 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); . } . 2,207 ( 0.00%) 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 . } 775 ( 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) { 2 ( 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")] 230 ( 0.00%) pub fn from_elem(elem: T, n: usize) -> Vec { 1,400 ( 0.00%) ::from_elem(elem, n, Global) 258 ( 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] { 61,242 ( 0.08%) 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] { 6,930 ( 0.01%) 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))] 3,074 ( 0.00%) fn clone(&self) -> Self { . let alloc = self.allocator().clone(); 2 ( 0.00%) <[T]>::to_vec_in(&**self, alloc) 3,805 ( 0.00%) } . . // 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 { 738 ( 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 { 11,170 ( 0.01%) >::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 { 5,505 ( 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(); 1,635 ( 0.00%) IntoIter { . buf: NonNull::new_unchecked(begin), . phantom: PhantomData, . cap, . alloc, . ptr: begin, . end, . } . } -- line 2589 ---------------------------------------- -- line 2601 ---------------------------------------- . } . . #[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> { 660 ( 0.00%) self.iter_mut() . } . } . . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . impl Extend for Vec { . #[inline] . fn extend>(&mut self, iter: I) { 3,881 ( 0.00%) >::spec_extend(self, iter.into_iter()) . } . . #[inline] . fn extend_one(&mut self, item: T) { . self.push(item); . } . . #[inline] -- line 2626 ---------------------------------------- -- 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); . // } 3,631 ( 0.00%) while let Some(element) = iterator.next() { 98 ( 0.00%) let len = self.len(); 4,135 ( 0.01%) if len == self.capacity() { 91 ( 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 3,907 ( 0.00%) self.set_len(len + 1); . } . } 8 ( 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, . { 17 ( 0.00%) let old_len = self.len(); . . // Guard against us getting leaked (leak amplification) . unsafe { . self.set_len(0); . } . 8 ( 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 { 6,243 ( 0.01%) 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 3,992 ( 0.01%) ptr::drop_in_place(ptr::slice_from_raw_parts_mut(self.as_mut_ptr(), self.len)) . } . // RawVec handles deallocation 7,314 ( 0.01%) } . } . . #[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 ---------------------------------------- 26,423 ( 0.03%) -------------------------------------------------------------------------------- -- 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, . { 44,073 ( 0.06%) 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. 13 ( 0.00%) #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd)] 654 ( 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 1,660 ( 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> { 2 ( 0.00%) encoder.emit_enum(|encoder| match *self { . RealFileName::LocalPath(ref local_path) => { 8 ( 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 { 1,324 ( 0.00%) match self { . RealFileName::LocalPath(p) . | RealFileName::Remapped { local_path: _, virtual_name: p } => &p, . } 2 ( 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 { 1 ( 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> { 1 ( 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. 3,385 ( 0.00%) #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd, Hash)] 3,952 ( 0.00%) #[derive(Decodable, Encodable)] . pub enum FileName { . Real(RealFileName), . /// Call to `quote!`. . QuoteExpansion(u64), . /// Command line. . Anon(u64), . /// Hack in `src/librustc_ast/parse.rs`. . // FIXME(jseyfried) -- line 281 ---------------------------------------- -- 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 { 7 ( 0.00%) fn from(p: PathBuf) -> Self { 2 ( 0.00%) assert!(!p.to_string_lossy().ends_with('>')); 6 ( 0.00%) FileName::Real(RealFileName::LocalPath(p)) 7 ( 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<'_> { 4 ( 0.00%) fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { . use FileName::*; 6 ( 0.00%) match *self.inner { . Real(ref name) => { 6 ( 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, ""), . } 5 ( 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::*; 662 ( 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. 1 ( 0.00%) pub fn prefer_local(&self) -> FileNameDisplay<'_> { . FileNameDisplay { inner: self, display_pref: FileNameDisplayPreference::Local } 2 ( 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 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 { 2,048 ( 0.00%) self.lo.0 == 0 && self.hi.0 == 0 . } . /// Returns `true` if `self` fully encloses `other`. . pub fn contains(self, other: Self) -> bool { 12 ( 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 { 5,896 ( 0.01%) fn partial_cmp(&self, rhs: &Self) -> Option { 4,422 ( 0.01%) PartialOrd::partial_cmp(&self.data(), &rhs.data()) 5,896 ( 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] 252 ( 0.00%) pub fn with_lo(self, lo: BytePos) -> Span { . self.data().with_lo(lo) 168 ( 0.00%) } . #[inline] 108 ( 0.00%) pub fn hi(self) -> BytePos { . self.data().hi 108 ( 0.00%) } . #[inline] 369 ( 0.00%) pub fn with_hi(self, hi: BytePos) -> Span { . self.data().with_hi(hi) 246 ( 0.00%) } . #[inline] . pub fn ctxt(self) -> SyntaxContext { . self.data_untracked().ctxt . } . #[inline] 165 ( 0.00%) pub fn with_ctxt(self, ctxt: SyntaxContext) -> Span { . self.data_untracked().with_ctxt(ctxt) 99 ( 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 618 ---------------------------------------- . } . . /// 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`. 36 ( 0.00%) pub fn contains(self, other: Span) -> bool { . let span = self.data(); . let other = other.data(); . span.contains(other) 24 ( 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`. 40 ( 0.00%) pub fn find_ancestor_inside(mut self, outer: Span) -> Option { 20 ( 0.00%) while !outer.contains(self) { . self = self.parent_callsite()?; . } . Some(self) 44 ( 0.00%) } . . /// Edition of the crate from which this span came. 180 ( 0.00%) pub fn edition(self) -> edition::Edition { . self.ctxt().edition() 120 ( 0.00%) } . . #[inline] . pub fn rust_2015(self) -> bool { 34 ( 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 { 6 ( 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]`). 10 ( 0.00%) pub fn allows_unstable(self, feature: Symbol) -> bool { 2 ( 0.00%) self.ctxt() . .outer_expn_data() . .allow_internal_unstable . .map_or(false, |features| features.iter().any(|&f| f == feature)) 8 ( 0.00%) } . . /// Checks if this span arises from a compiler desugaring of kind `kind`. 70 ( 0.00%) pub fn is_desugaring(self, kind: DesugaringKind) -> bool { 60 ( 0.00%) match self.ctxt().outer_expn_data().kind { . ExpnKind::Desugaring(k) => k == kind, . _ => false, . } 50 ( 0.00%) } . . /// Returns the compiler desugaring that created this span, or `None` . /// if this span is not from a desugaring. . pub fn desugaring_kind(self) -> Option { . match self.ctxt().outer_expn_data().kind { . ExpnKind::Desugaring(k) => Some(k), . _ => None, . } . } . . /// 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]`). 4 ( 0.00%) pub fn allows_unsafe(self) -> bool { 1 ( 0.00%) self.ctxt().outer_expn_data().allow_internal_unsafe 4 ( 0.00%) } . . pub fn macro_backtrace(mut self) -> impl Iterator { . let mut prev_span = DUMMY_SP; . std::iter::from_fn(move || { . loop { . let expn_data = self.ctxt().outer_expn_data(); . if expn_data.is_root() { . return None; -- line 752 ---------------------------------------- -- line 767 ---------------------------------------- . . /// Returns a `Span` that would enclose both `self` and `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^^^^^^^^ . /// ``` 8,899 ( 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. 1,604 ( 0.00%) if span_data.ctxt != end_data.ctxt { 14 ( 0.00%) if span_data.ctxt == SyntaxContext::root() { . return end; 14 ( 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 }, 5,565 ( 0.01%) if span_data.parent == end_data.parent { span_data.parent } else { None }, . ) 7,281 ( 0.01%) } . . /// Returns a `Span` between the end of `self` to the beginning of `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^ . /// ``` -- line 804 ---------------------------------------- -- line 815 ---------------------------------------- . . /// 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%) } . . 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, . ) . } . . /// 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 { 30 ( 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). 192 ( 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)) 112 ( 0.00%) } . . #[inline] . pub fn apply_mark(self, expn_id: ExpnId, transparency: Transparency) -> Span { . let span = self.data(); . span.with_ctxt(span.ctxt.apply_mark(expn_id, transparency)) . } . . #[inline] -- line 892 ---------------------------------------- -- 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] 396 ( 0.00%) pub fn normalize_to_macros_2_0_and_adjust(&mut self, expn_id: ExpnId) -> Option { 264 ( 0.00%) let mut span = self.data(); 216 ( 0.00%) let mark = span.ctxt.normalize_to_macros_2_0_and_adjust(expn_id); 396 ( 0.00%) *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark 436 ( 0.00%) } . . #[inline] . pub fn glob_adjust(&mut self, expn_id: ExpnId, glob_span: Span) -> Option> { . let mut span = self.data(); . let mark = span.ctxt.glob_adjust(expn_id, glob_span); . *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark . } -- line 922 ---------------------------------------- -- line 929 ---------------------------------------- . ) -> Option> { . let mut span = self.data(); . let mark = span.ctxt.reverse_glob_adjust(expn_id, glob_span); . *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark . } . . #[inline] 344 ( 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()) 301 ( 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 { 150 ( 0.00%) MultiSpan { primary_spans: vec![primary_span], span_labels: vec![] } . } . . pub fn from_spans(mut vec: Vec) -> MultiSpan { . vec.sort(); 5 ( 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() 25 ( 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 { 150 ( 0.00%) fn from(span: Span) -> MultiSpan { . MultiSpan::from_span(span) 150 ( 0.00%) } . } . . impl From> for MultiSpan { 5 ( 0.00%) fn from(spans: Vec) -> MultiSpan { 4 ( 0.00%) MultiSpan::from_spans(spans) 5 ( 0.00%) } . } . . /// Identifies an offset of a multi-byte character in a `SourceFile`. . #[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`. 268 ( 0.00%) #[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 { 466 ( 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; . 134 ( 0.00%) fn sub(self, rhs: BytePos) -> Self { 466 ( 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), . } 402 ( 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, . } . 3 ( 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 1267 ---------------------------------------- . _ => None, . } . } . } . . #[derive(Debug)] . pub struct OffsetOverflowError; . 660 ( 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. 6 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, Debug)] 1,320 ( 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 => { 3 ( 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 { 3 ( 0.00%) match self.kind { . SourceFileHashAlgorithm::Md5 => 16, . SourceFileHashAlgorithm::Sha1 => 20, . SourceFileHashAlgorithm::Sha256 => 32, . } . } . } . . /// A single source in the [`SourceMap`]. 58 ( 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. 1 ( 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. 1 ( 0.00%) pub name_hash: u128, . /// Indicates which crate this `SourceFile` was imported from. 1 ( 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)?; . 4 ( 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 { 2 ( 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); . 2 ( 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))?; 3 ( 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))?; 11 ( 0.00%) s.emit_struct_field("cnum", false, |s| self.cnum.encode(s)) . }) . } . } . . impl Decodable for SourceFile { 2,970 ( 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); 330 ( 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 { 658,876 ( 0.83%) 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)); 660 ( 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)); 3,630 ( 0.00%) SourceFile { 2,640 ( 0.00%) name, . start_pos, . end_pos, . src: None, 1,320 ( 0.00%) src_hash, . // Unused - the metadata decoder will construct . // a new SourceFile, filling in `external_src` properly . external_src: Lock::new(ExternalSource::Unneeded), 1,320 ( 0.00%) lines, 1,320 ( 0.00%) multibyte_chars, 1,320 ( 0.00%) non_narrow_chars, 1,320 ( 0.00%) normalized_pos, . name_hash, . cnum, . } . }) 2,970 ( 0.00%) } . } . . impl fmt::Debug for SourceFile { . fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { . write!(fmt, "SourceFile({:?})", self.name) . } . } . . impl SourceFile { 11 ( 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); 3 ( 0.00%) let normalized_pos = normalize_src(&mut src, start_pos); . . let name_hash = { . let mut hasher: StableHasher = StableHasher::new(); 2 ( 0.00%) name.hash(&mut hasher); . hasher.finish::() . }; 2 ( 0.00%) let end_pos = start_pos.to_usize() + src.len(); 3 ( 0.00%) assert!(end_pos <= u32::MAX as usize); . 12 ( 0.00%) let (lines, multibyte_chars, non_narrow_chars) = 2 ( 0.00%) analyze_source_file::analyze_source_file(&src, start_pos); . 17 ( 0.00%) SourceFile { . name, . src: Some(Lrc::new(src)), 11 ( 0.00%) src_hash, . external_src: Lock::new(ExternalSource::Unneeded), . start_pos, . end_pos: Pos::from_usize(end_pos), 4 ( 0.00%) lines, 4 ( 0.00%) multibyte_chars, 4 ( 0.00%) non_narrow_chars, 4 ( 0.00%) normalized_pos, . name_hash, . cnum: LOCAL_CRATE, . } 9 ( 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. 56 ( 0.00%) pub fn add_external_src(&self, get_src: F) -> bool . where . F: FnOnce() -> Option, . { 8 ( 0.00%) if matches!( 16 ( 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 { 8 ( 0.00%) self.src.is_some() || self.external_src.borrow().get_source().is_some() . } 72 ( 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() 331 ( 0.00%) } . . pub fn is_imported(&self) -> bool { . self.src.is_none() 449 ( 0.00%) } . . 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 { 144 ( 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 { 181 ( 0.00%) if self.is_empty() { . return self.start_pos..self.end_pos; . } . 121 ( 0.00%) assert!(line_index < self.lines.len()); 174 ( 0.00%) if line_index == (self.lines.len() - 1) { 3 ( 0.00%) self.lines[line_index]..self.end_pos . } else { 114 ( 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. 10 ( 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 9 ( 0.00%) } . . /// Removes UTF-8 BOM, if any. . fn remove_bom(src: &mut String, normalized_pos: &mut Vec) { 1 ( 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) { 1 ( 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])* 1,195 ( 0.00%) $vis struct $ident($inner_vis $inner_ty); . . impl Pos for $ident { . #[inline(always)] . fn from_usize(n: usize) -> $ident { 154 ( 0.00%) $ident(n as $inner_ty) . } . . #[inline(always)] . fn to_usize(&self) -> usize { 3,140 ( 0.00%) 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 { 1,087,858 ( 1.37%) $ident(self.0 + rhs.0) . } . } . . impl Sub for $ident { . type Output = $ident; . . #[inline(always)] . fn sub(self, rhs: $ident) -> $ident { 570,862 ( 0.72%) $ident(self.0 - rhs.0) . } . } . )* . }; . } . . impl_pos! { . /// A byte offset. -- line 1931 ---------------------------------------- -- line 1946 ---------------------------------------- . impl Encodable for BytePos { . fn encode(&self, s: &mut S) -> Result<(), S::Error> { . s.emit_u32(self.0) . } . } . . impl Decodable for BytePos { . fn decode(d: &mut D) -> BytePos { 86,756 ( 0.11%) BytePos(d.read_u32()) . } . } . . // _____________________________________________________________________________ . // Loc, SourceFileAndLine, SourceFileAndBytePos . // . . /// A source code location used for error reporting. -- line 1962 ---------------------------------------- -- 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. 3,115 ( 0.00%) 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; . 613 ( 0.00%) if !ctx.hash_spans() { . return; . } . 2,502 ( 0.00%) let span = self.data_untracked(); 831 ( 0.00%) span.ctxt.hash_stable(ctx, hasher); 1,335 ( 0.00%) span.parent.hash_stable(ctx, hasher); . 921 ( 0.00%) if span.is_dummy() { . Hash::hash(&TAG_INVALID_SPAN, hasher); . return; . } . 828 ( 0.00%) 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. 1,656 ( 0.00%) let (file, line_lo, col_lo, line_hi, col_hi) = match ctx.span_data_to_lines_and_cols(&span) . { 828 ( 0.00%) 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. . 414 ( 0.00%) 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; 414 ( 0.00%) let len = (span.hi - span.lo).0; . Hash::hash(&col_line, hasher); . Hash::hash(&len, hasher); 3,560 ( 0.00%) } . } 821,148 ( 1.03%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs -------------------------------------------------------------------------------- Ir -- line 57 ---------------------------------------- . /// # Examples . /// . /// Basic usage: . /// . /// ``` . #[doc = concat!("assert_eq!(", stringify!($SelfT), "::from_str_radix(\"A\", 16), Ok(10));")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] 10 ( 0.00%) pub fn from_str_radix(src: &str, radix: u32) -> Result { 5 ( 0.00%) from_str_radix(src, radix) 15 ( 0.00%) } . . /// Returns the number of ones in the binary representation of `self`. . /// . /// # Examples . /// . /// Basic usage: . /// . /// ``` -- line 75 ---------------------------------------- -- 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 { 750 ( 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 { 16,465 ( 0.02%) 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 { 13,563 ( 0.02%) 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 { 280,409 ( 0.35%) intrinsics::rotate_left(self, n as $SelfT) . } . . /// Shifts the bits to the right by a specified amount, `n`, . /// wrapping the truncated bits to the beginning of the resulting . /// integer. . /// . /// Please note this isn't the same operation as the `>>` shifting operator! . /// -- line 220 ---------------------------------------- -- line 456 ---------------------------------------- . )] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_unstable(feature = "const_inherent_unchecked_arith", issue = "85122")] . #[inline(always)] . pub const unsafe fn unchecked_add(self, rhs: Self) -> Self { . // SAFETY: the caller must uphold the safety contract for . // `unchecked_add`. 66,059 ( 0.08%) unsafe { intrinsics::unchecked_add(self, rhs) } . } . . /// Checked addition with a signed integer. Computes `self + rhs`, . /// returning `None` if overflow occurred. . /// . /// # Examples . /// . /// Basic usage: -- line 472 ---------------------------------------- -- line 525 ---------------------------------------- . )] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_unstable(feature = "const_inherent_unchecked_arith", issue = "85122")] . #[inline(always)] . pub const unsafe fn unchecked_sub(self, rhs: Self) -> Self { . // SAFETY: the caller must uphold the safety contract for . // `unchecked_sub`. 335 ( 0.00%) unsafe { intrinsics::unchecked_sub(self, rhs) } . } . . /// Checked integer multiplication. Computes `self * rhs`, returning . /// `None` if overflow occurred. . /// . /// # Examples . /// . /// Basic usage: -- line 541 ---------------------------------------- -- line 1035 ---------------------------------------- . #[doc = concat!("assert_eq!(", stringify!($SelfT), "::MAX.saturating_add(127), ", stringify!($SelfT), "::MAX);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_stable(feature = "const_saturating_int_methods", since = "1.47.0")] . #[inline(always)] . pub const fn saturating_add(self, rhs: Self) -> Self { 939 ( 0.00%) intrinsics::saturating_add(self, rhs) . } . . /// Saturating addition with a signed integer. Computes `self + rhs`, . /// saturating at the numeric bounds instead of overflowing. . /// . /// # Examples . /// . /// Basic usage: -- line 1051 ---------------------------------------- -- line 1084 ---------------------------------------- . #[doc = concat!("assert_eq!(13", stringify!($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 { 34 ( 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 { 95,115 ( 0.12%) 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 { 100,311 ( 0.13%) 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 { 243,509 ( 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) { 21,491 ( 0.03%) 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) { 21,736 ( 0.03%) 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) { 26,832 ( 0.03%) 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!($SelfT), ".is_power_of_two());")] . /// ``` . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_is_power_of_two", since = "1.32.0")] . #[inline(always)] . pub const fn is_power_of_two(self) -> bool { 36 ( 0.00%) self.count_ones() == 1 . } . . // Returns one less than next power of two. . // (For 8u8 next power of two is 8u8 and for 6u8 it is 8u8) . // . // 8u8.one_less_than_next_power_of_two() == 7 . // 6u8.one_less_than_next_power_of_two() == 7 . // . // This method cannot overflow, as in the `next_power_of_two` . // overflow cases it instead ends up returning the maximum value . // of the type, and can return 0 for 0. . #[inline] . #[rustc_const_stable(feature = "const_int_pow", since = "1.50.0")] . const fn one_less_than_next_power_of_two(self) -> Self { 172 ( 0.00%) if self <= 1 { return 0; } . 532 ( 0.00%) let p = self - 1; . // SAFETY: Because `p > 0`, it cannot consist entirely of leading zeros. . // That means the shift is always in-bounds, and some processors . // (such as intel pre-haswell) have more efficient ctlz . // intrinsics when the argument is non-zero. 1,572 ( 0.00%) let z = unsafe { intrinsics::ctlz_nonzero(p) }; 524 ( 0.00%) <$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 { 876 ( 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 ---------------------------------------- 1,562 ( 0.00%) -------------------------------------------------------------------------------- -- 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 { 25,537 ( 0.03%) 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::()); 16,378 ( 0.02%) 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" . ); . 2,032 ( 0.00%) self.stride += Group::WIDTH; 2,032 ( 0.00%) self.pos += self.stride; 1,016 ( 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. 346 ( 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. 460 ( 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. 486 ( 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 { 1,308 ( 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. 366 ( 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 = 771 ( 0.00%) size.checked_mul(buckets)?.checked_add(ctrl_align - 1)? & !(ctrl_align - 1); 944 ( 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) { 4 ( 0.00%) if additional > self.table.growth_left { . // Avoid `Result::unwrap_or_else` because it bloats LLVM IR. 866 ( 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)] 1,431 ( 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. 346 ( 0.00%) let new_items = match self.table.items.checked_add(additional) { . Some(new_items) => new_items, . None => return Err(fallibility.capacity_overflow()), . }; 346 ( 0.00%) let full_capacity = bucket_mask_to_capacity(self.table.bucket_mask); 692 ( 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( 173 ( 0.00%) usize::max(new_items, full_capacity + 1), . hasher, . fallibility, . ) . } 1,557 ( 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 = 1,314 ( 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. 11,612 ( 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); 11,612 ( 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); . 173 ( 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. 16 ( 0.00%) let old_ctrl = *self.table.ctrl(index); 32,892 ( 0.04%) 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); . 8,226 ( 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] 3,900 ( 0.00%) pub fn find(&self, hash: u64, mut eq: impl FnMut(&T) -> bool) -> Option> { . unsafe { 63,097 ( 0.08%) for bucket in self.iter_hash(hash) { . let elm = bucket.as_ref(); 2,368 ( 0.00%) if likely(eq(elm)) { . return Some(bucket); . } . } . None . } 5,200 ( 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. 52 ( 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 { 348 ( 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 { 12 ( 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 { 173 ( 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 { 557 ( 0.00%) Self { . // Be careful to cast the entire slice to a raw pointer. 292 ( 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()), . }; . 346 ( 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, 176 ( 0.00%) bucket_mask: buckets - 1, . items: 0, . growth_left: bucket_mask_to_capacity(buckets - 1), . alloc, . }) . } . . #[inline] 1,230 ( 0.00%) fn fallible_with_capacity( . alloc: A, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result { . 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()); . 738 ( 0.00%) Ok(result) . } . } 984 ( 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)); 20,518 ( 0.03%) if let Some(bit) = group.match_empty_or_deleted().lowest_set_bit() { 60,033 ( 0.08%) 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). 28,237 ( 0.04%) 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 { 101,830 ( 0.13%) 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) { 41,130 ( 0.05%) self.growth_left -= special_is_empty(old_ctrl) as usize; . self.set_ctrl_h2(index, hash); 32,904 ( 0.04%) 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] | . // --------------------------------------------- 59,514 ( 0.07%) let index2 = ((index.wrapping_sub(Group::WIDTH)) & self.bucket_mask) + Group::WIDTH; . 19,838 ( 0.02%) *self.ctrl(index) = ctrl; 19,838 ( 0.02%) *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 { 346 ( 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 { 924 ( 0.00%) self.bucket_mask == 0 . } . . #[allow(clippy::mut_mut)] . #[inline] 33 ( 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. 615 ( 0.00%) let mut new_table = RawTableInner::fallible_with_capacity( . self.alloc.clone(), . table_layout, . capacity, . fallibility, . )?; 346 ( 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. 24 ( 0.00%) Ok(guard(new_table, move |self_| { 173 ( 0.00%) if !self_.is_empty_singleton() { . self_.free_buckets(table_layout); . } . })) 24 ( 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( 59 ( 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) { 297 ( 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 { 999 ( 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)); . } . 1,850 ( 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() { 23,224 ( 0.03%) 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); 8,902 ( 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; . 80 ( 0.00%) fn next(&mut self) -> Option> { . unsafe { . match self.inner.next() { 40 ( 0.00%) Some(index) => Some(self.inner.table.bucket(index)), . None => None, . } . } 80 ( 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() { 4,001 ( 0.01%) let index = (self.probe_seq.pos + bit) & self.table.bucket_mask; . return Some(index); . } 8,782 ( 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)); 1,527 ( 0.00%) self.bitmask = self.group.match_byte(self.h2_hash).into_iter(); . } . } . } . } . . #[cfg(test)] . mod test_map { . use super::*; -- line 2236 ---------------------------------------- 78,614 ( 0.10%) -------------------------------------------------------------------------------- -- 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: $int_ty, . ) -> &[u8] { . let mut i = 0; . . loop { 3,311 ( 0.00%) if value < 0x80 { . unsafe { 1,692 ( 0.00%) *out.get_unchecked_mut(i).as_mut_ptr() = value as u8; . } . 2,369 ( 0.00%) i += 1; . break; . } else { . unsafe { 1,228 ( 0.00%) *out.get_unchecked_mut(i).as_mut_ptr() = ((value & 0x7f) | 0x80) as u8; . } . 574 ( 0.00%) value >>= 7; . i += 1; . } . } . . unsafe { ::std::mem::MaybeUninit::slice_assume_init_ref(&out.get_unchecked(..i)) } . } . }; . } -- line 45 ---------------------------------------- -- line 53 ---------------------------------------- . macro_rules! impl_read_unsigned_leb128 { . ($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. 607,460 ( 0.76%) let byte = slice[*position]; 303,730 ( 0.38%) *position += 1; 303,730 ( 0.38%) if (byte & 0x80) == 0 { . return byte as $int_ty; . } 660 ( 0.00%) let mut result = (byte & 0x7F) as $int_ty; . let mut shift = 7; . loop { 238,503 ( 0.30%) let byte = slice[*position]; 155,315 ( 0.20%) *position += 1; 159,002 ( 0.20%) if (byte & 0x80) == 0 { 118,230 ( 0.15%) result |= (byte as $int_ty) << shift; . return result; . } else { . result |= ((byte & 0x7F) as $int_ty) << shift; . } . shift += 7; . } . } . }; -- line 80 ---------------------------------------- 264,919 ( 0.33%) -------------------------------------------------------------------------------- -- 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 . } . 1,452 ( 0.00%) fn decoder(self, pos: usize) -> DecodeContext<'a, 'tcx> { 484 ( 0.00%) let tcx = self.tcx(); 114,773 ( 0.14%) DecodeContext { 11,764 ( 0.01%) opaque: opaque::Decoder::new(self.blob(), pos), 484 ( 0.00%) cdata: self.cdata(), . blob: self.blob(), 3,548 ( 0.00%) sess: self.sess().or(tcx.map(|tcx| tcx.sess)), . tcx, . last_source_file_index: 0, . lazy_state: LazyState::NoNode, . alloc_decoding_session: self . .cdata() 10,695 ( 0.01%) .map(|cdata| cdata.cdata.alloc_decoding_state.new_decoding_session()), . } 1,452 ( 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 { 15,522 ( 0.02%) fn decode>(self, metadata: M) -> T { 7,272 ( 0.01%) let mut dcx = metadata.decoder(self.position.get()); 33,067 ( 0.04%) dcx.lazy_state = LazyState::NodeStart(self.position); 11,807 ( 0.01%) T::decode(&mut dcx) 19,836 ( 0.02%) } . } . . impl<'a: 'x, 'tcx: 'x, 'x, T: Decodable>> Lazy<[T]> { . fn decode>( . self, . metadata: M, . ) -> impl ExactSizeIterator + Captures<'a> + Captures<'tcx> + 'x { 7 ( 0.00%) let mut dcx = metadata.decoder(self.position.get()); 2 ( 0.00%) dcx.lazy_state = LazyState::NodeStart(self.position); 4,592 ( 0.01%) (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 { 40,671 ( 0.05%) if cnum == LOCAL_CRATE { self.cdata().cnum } else { self.cdata().cnum_map[cnum] } . } . 9,610 ( 0.01%) fn read_lazy_with_meta(&mut self, meta: T::Meta) -> Lazy { . let distance = self.read_usize(); 9,174 ( 0.01%) let position = match self.lazy_state { . LazyState::NoNode => bug!("read_lazy_with_meta: outside of a metadata node"), 1,953 ( 0.00%) LazyState::NodeStart(start) => { . let start = start.get(); 3,906 ( 0.00%) assert!(distance <= start); . start - distance . } 1,989 ( 0.00%) LazyState::Previous(last_pos) => last_pos.get() + distance, . }; 5,232 ( 0.01%) self.lazy_state = LazyState::Previous(NonZeroUsize::new(position).unwrap()); . Lazy::from_position_and_meta(NonZeroUsize::new(position).unwrap(), meta) 9,610 ( 0.01%) } . . #[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 { 17,785 ( 0.02%) self.opaque.data[self.opaque.position()] . } . . #[inline] . fn position(&self) -> usize { . self.opaque.position() . } . 17,479 ( 0.02%) fn cached_ty_for_shorthand(&mut self, shorthand: usize, or_insert_with: F) -> Ty<'tcx> . where . F: FnOnce(&mut Self) -> Ty<'tcx>, . { 2,497 ( 0.00%) let tcx = self.tcx(); . 2,497 ( 0.00%) let key = ty::CReaderCacheKey { cnum: Some(self.cdata().cnum), pos: shorthand }; . 6,688 ( 0.01%) if let Some(&ty) = tcx.ty_rcache.borrow().get(&key) { . return ty; . } . 825 ( 0.00%) let ty = or_insert_with(self); . tcx.ty_rcache.borrow_mut().insert(key, ty); . ty 22,473 ( 0.03%) } . . 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); 4,160 ( 0.01%) self.opaque = old_opaque; 832 ( 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 { 23,982 ( 0.03%) let cnum = CrateNum::from_u32(d.read_u32()); . d.map_encoded_cnum_to_current(cnum) . } . } . . impl<'a, 'tcx> Decodable> for DefIndex { 1,071 ( 0.00%) fn decode(d: &mut DecodeContext<'a, 'tcx>) -> DefIndex { 37,405 ( 0.05%) DefIndex::from_u32(d.read_u32()) 2,142 ( 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 { 56,016 ( 0.07%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> SyntaxContext { 14,004 ( 0.02%) let cdata = decoder.cdata(); 14,004 ( 0.02%) let sess = decoder.sess.unwrap(); 28,008 ( 0.04%) let cname = cdata.root.name; . rustc_span::hygiene::decode_syntax_context(decoder, &cdata.hygiene_context, |_, id| { . debug!("SpecializedDecoder: decoding {}", id); 72 ( 0.00%) cdata . .root . .syntax_contexts . .get(cdata, id) . .unwrap_or_else(|| panic!("Missing SyntaxContext {:?} for crate {:?}", id, cname)) . .decode((cdata, sess)) . }) 70,020 ( 0.09%) } . } . . impl<'a, 'tcx> Decodable> for ExpnId { 1,568 ( 0.00%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> ExpnId { 224 ( 0.00%) let local_cdata = decoder.cdata(); 224 ( 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); 26 ( 0.00%) let crate_data = if cnum == local_cdata.cnum { . local_cdata . } else { . local_cdata.cstore.get_crate_data(cnum) . }; 130 ( 0.00%) let expn_data = crate_data . .root . .expn_data . .get(crate_data, index) . .unwrap() . .decode((crate_data, sess)); 130 ( 0.00%) let expn_hash = crate_data . .root . .expn_hashes . .get(crate_data, index) . .unwrap() . .decode((crate_data, sess)); 260 ( 0.00%) (expn_data, expn_hash) . }); . expn_id 1,792 ( 0.00%) } . } . . impl<'a, 'tcx> Decodable> for Span { 111,600 ( 0.14%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Span { 13,950 ( 0.02%) let ctxt = SyntaxContext::decode(decoder); . let tag = u8::decode(decoder); . 27,900 ( 0.04%) 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; . 41,820 ( 0.05%) 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. 40,841 ( 0.05%) 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` . 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); -- line 508 ---------------------------------------- -- line 527 ---------------------------------------- . . 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. 41,820 ( 0.05%) let last_source_file = &imported_source_files[decoder.last_source_file_index]; . 50,647 ( 0.06%) 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) 25,920 ( 0.03%) .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 12,961 ( 0.02%) if tag == TAG_VALID_SPAN_LOCAL { 12,961 ( 0.02%) decoder.last_source_file_index = index; . } 25,922 ( 0.03%) &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 = 55,760 ( 0.07%) (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) 125,550 ( 0.16%) } . } . . 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 { 3,697 ( 0.00%) 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(); 3,575 ( 0.00%) 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(); 2,028 ( 0.00%) 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) . } . 36 ( 0.00%) crate fn get_root(&self) -> CrateRoot<'tcx> { 12 ( 0.00%) let slice = &self.blob()[..]; . let offset = METADATA_HEADER.len(); 60 ( 0.00%) let pos = (((slice[offset + 0] as u32) << 24) 24 ( 0.00%) | ((slice[offset + 1] as u32) << 16) 48 ( 0.00%) | ((slice[offset + 2] as u32) << 8) 36 ( 0.00%) | ((slice[offset + 3] as u32) << 0)) as usize; . Lazy::>::from_position(NonZeroUsize::new(pos).unwrap()).decode(self) 60 ( 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 { 8 ( 0.00%) self.proc_macro_data.is_some() . } . . crate fn name(&self) -> Symbol { 6 ( 0.00%) self.name . } . . crate fn hash(&self) -> Svh { 4 ( 0.00%) self.hash . } . . crate fn stable_crate_id(&self) -> StableCrateId { 8 ( 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> { 8 ( 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] . } . 17,061 ( 0.02%) fn opt_item_ident(self, item_index: DefIndex, sess: &Session) -> Option { 12,438 ( 0.02%) let name = self.def_key(item_index).disambiguated_data.data.get_opt_name()?; 9,730 ( 0.01%) 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. 36 ( 0.00%) assert_eq!(self.def_kind(item_index), DefKind::ExternCrate); . return None; . } . }; . Some(Ident::new(name, span)) 21,726 ( 0.03%) } . 1,071 ( 0.00%) fn item_ident(self, item_index: DefIndex, sess: &Session) -> Ident { 1,329 ( 0.00%) self.opt_item_ident(item_index, sess).expect("no encoded ident for item") 2,142 ( 0.00%) } . . fn maybe_kind(self, item_id: DefIndex) -> Option { 3,740 ( 0.00%) self.root.tables.kind.get(self, item_id).map(|k| k.decode(self)) . } . 14,960 ( 0.02%) 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, . ) . }) 11,220 ( 0.01%) } . 3,437 ( 0.00%) fn def_kind(self, item_id: DefIndex) -> DefKind { 2,114 ( 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, . ) . }) 1,964 ( 0.00%) } . 9,639 ( 0.01%) fn get_span(self, index: DefIndex, sess: &Session) -> Span { 5,552 ( 0.01%) self.root . .tables . .span . .get(self, index) . .unwrap_or_else(|| panic!("Missing span for {:?}", index)) . .decode((self, sess)) 5,355 ( 0.01%) } . . 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, . ) . } . 91 ( 0.00%) fn get_trait_def(self, item_id: DefIndex, sess: &Session) -> ty::TraitDef { 28 ( 0.00%) match self.kind(item_id) { 7 ( 0.00%) EntryKind::Trait(data) => { 42 ( 0.00%) let data = data.decode((self, sess)); 112 ( 0.00%) ty::TraitDef::new( . self.local_def_id(item_id), 14 ( 0.00%) data.unsafety, 14 ( 0.00%) data.paren_sugar, 14 ( 0.00%) data.has_auto_impl, 14 ( 0.00%) data.is_marker, 7 ( 0.00%) data.skip_array_during_method_dispatch, 7 ( 0.00%) data.specialization_kind, 28 ( 0.00%) self.def_path_hash(item_id), 7 ( 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"), . } 63 ( 0.00%) } . 27 ( 0.00%) fn get_variant( . self, . kind: &EntryKind, . index: DefIndex, . parent_did: DefId, . sess: &Session, . ) -> ty::VariantDef { 12 ( 0.00%) let data = match kind { . EntryKind::Variant(data) | EntryKind::Struct(data, _) | EntryKind::Union(data, _) => { 15 ( 0.00%) data.decode(self) . } . _ => bug!(), . }; . 8 ( 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 }; 6 ( 0.00%) let ctor_did = data.ctor.map(|index| self.local_def_id(index)); . 66 ( 0.00%) ty::VariantDef::new( . self.item_ident(index, sess).name, . variant_did, . ctor_did, 12 ( 0.00%) data.discr, 18 ( 0.00%) self.root . .tables . .children . .get(self, index) . .unwrap_or_else(Lazy::empty) . .decode(self) . .map(|index| ty::FieldDef { 2 ( 0.00%) did: self.local_def_id(index), 4 ( 0.00%) name: self.item_ident(index, sess).name, 4 ( 0.00%) vis: self.get_visibility(index), . }) . .collect(), . data.ctor_kind, . adt_kind, . parent_did, . false, 3 ( 0.00%) data.is_non_exhaustive, . ) 27 ( 0.00%) } . 30 ( 0.00%) fn get_adt_def(self, item_id: DefIndex, tcx: TyCtxt<'tcx>) -> &'tcx ty::AdtDef { 8 ( 0.00%) let kind = self.kind(item_id); 4 ( 0.00%) let did = self.local_def_id(item_id); . 8 ( 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 { 5 ( 0.00%) self.root . .tables . .children . .get(self, item_id) . .unwrap_or_else(Lazy::empty) . .decode(self) 34 ( 0.00%) .map(|index| self.get_variant(&self.kind(index), index, did, tcx.sess)) . .collect() . } else { 8 ( 0.00%) std::iter::once(self.get_variant(&kind, item_id, did, tcx.sess)).collect() . }; . 33 ( 0.00%) tcx.alloc_adt_def(did, adt_kind, variants, repr) 14 ( 0.00%) } . . fn get_explicit_predicates( . self, . item_id: DefIndex, . tcx: TyCtxt<'tcx>, . ) -> ty::GenericPredicates<'tcx> { 125 ( 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)] { 125 ( 0.00%) self.root . .tables . .inferred_outlives . .get(self, item_id) 4 ( 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> { 20 ( 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 { 152 ( 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> { 2,240 ( 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 { 50 ( 0.00%) self.root.tables.stability.get(self, id).map(|stab| stab.decode(self)) . } . . fn get_const_stability(self, id: DefIndex) -> Option { . self.root.tables.const_stability.get(self, id).map(|stab| stab.decode(self)) . } . . fn get_deprecation(self, id: DefIndex) -> Option { 55 ( 0.00%) self.root.tables.deprecation.get(self, id).map(|depr| depr.decode(self)) . } . . fn get_visibility(self, id: DefIndex) -> ty::Visibility { 777 ( 0.00%) self.root.tables.visibility.get(self, id).unwrap().decode(self) . } . . fn get_impl_data(self, id: DefIndex) -> ImplData { 7,722 ( 0.01%) match self.kind(id) { 6,435 ( 0.01%) EntryKind::Impl(data) => data.decode(self), . _ => bug!(), . } . } . . fn get_parent_impl(self, id: DefIndex) -> Option { 3,843 ( 0.00%) self.get_impl_data(id).parent_impl . } . . fn get_impl_polarity(self, id: DefIndex) -> ty::ImplPolarity { 6 ( 0.00%) self.get_impl_data(id).polarity . } . . fn get_impl_defaultness(self, id: DefIndex) -> hir::Defaultness { . 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 { 180 ( 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> { 15,480 ( 0.02%) 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 { 900 ( 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)] { 12 ( 0.00%) tcx.arena.alloc_from_iter( 8 ( 0.00%) self.root . .lang_items . .decode(self) 508 ( 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(); 8 ( 0.00%) let name_to_id = self . .root . .diagnostic_items . .decode(self) . .map(|(name, def_index)| { 91 ( 0.00%) let id = self.local_def_id(def_index); 91 ( 0.00%) id_to_name.insert(id, name); . (name, id) . }) . .collect(); 36 ( 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, . ) { 136 ( 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. 272 ( 0.00%) if let Some(children) = self.root.tables.children.get(self, id) { 544 ( 0.00%) for child_index in children.decode((self, sess)) { 2,616 ( 0.00%) if let Some(ident) = self.opt_item_ident(child_index, sess) { 804 ( 0.00%) let kind = self.def_kind(child_index); 536 ( 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. 1,040 ( 0.00%) match kind { . DefKind::Struct => { 10 ( 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 }); . } . } -- line 1121 ---------------------------------------- -- line 1144 ---------------------------------------- . callback(ModChild { ident, res: ctor_res, vis, span }); . } . _ => {} . } . } . } . } . 356 ( 0.00%) match self.kind(id) { 18 ( 0.00%) EntryKind::Mod(exports) => { 10,498 ( 0.01%) 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 { 1,239 ( 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 { 540 ( 0.00%) match self.kind(id) { 432 ( 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] { 56 ( 0.00%) if let Some(children) = self.root.tables.children.get(self, id) { 24 ( 0.00%) tcx.arena.alloc_from_iter( 8 ( 0.00%) children.decode((self, tcx.sess)).map(|child_index| self.local_def_id(child_index)), . ) . } else { . &[] . } . } . 408 ( 0.00%) fn get_associated_item(self, id: DefIndex, sess: &Session) -> ty::AssocItem { 238 ( 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); . 242 ( 0.00%) let (kind, container, has_self) = match self.kind(id) { . EntryKind::AssocConst(container, _, _) => (ty::AssocKind::Const, container, false), 32 ( 0.00%) EntryKind::AssocFn(data) => { . let data = data.decode(self); 224 ( 0.00%) (ty::AssocKind::Fn, data.container, data.has_self) . } 4 ( 0.00%) EntryKind::AssocType(container) => (ty::AssocKind::Type, container, false), . _ => bug!("cannot get associated-item of `{:?}`", def_key), . }; . 612 ( 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, . } 306 ( 0.00%) } . . fn get_item_variances(self, id: DefIndex) -> impl Iterator + 'a { 20 ( 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)> { 1,518 ( 0.00%) match self.kind(node_id) { . EntryKind::Struct(data, _) | EntryKind::Variant(data) => { 652 ( 0.00%) let vdata = data.decode(self); 242 ( 0.00%) vdata.ctor.map(|index| (self.local_def_id(index), vdata.ctor_kind)) . } . _ => None, . } 1,020 ( 0.00%) } . 84 ( 0.00%) fn get_item_attrs( . self, . id: DefIndex, . sess: &'a Session, . ) -> impl Iterator + 'a { 69 ( 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)) 63 ( 0.00%) } . . fn get_struct_field_names( . self, . id: DefIndex, . sess: &'a Session, . ) -> impl Iterator> + 'a { 1,030 ( 0.00%) self.root . .tables . .children . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 10,710 ( 0.01%) .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 { 20 ( 0.00%) self.root . .tables . .children . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) . .map(move |field_index| self.get_visibility(field_index)) . } . . fn get_inherent_implementations_for_type( . self, . tcx: TyCtxt<'tcx>, . id: DefIndex, . ) -> &'tcx [DefId] { 4 ( 0.00%) tcx.arena.alloc_from_iter( 5 ( 0.00%) self.root . .tables . .inherent_impls . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 36 ( 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) . }) . }) . } . 288 ( 0.00%) fn get_implementations_of_trait( . self, . tcx: TyCtxt<'tcx>, . trait_def_id: DefId, . ) -> &'tcx [(DefId, Option)] { 32 ( 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. 48 ( 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) { 48 ( 0.00%) tcx.arena.alloc_from_iter( 24 ( 0.00%) impls . .decode(self) 1,645 ( 0.00%) .map(|(idx, simplified_self_ty)| (self.local_def_id(idx), simplified_self_ty)), . ) . } else { . &[] . } 256 ( 0.00%) } . . fn get_trait_of_item(self, id: DefIndex) -> Option { . let def_key = self.def_key(id); . match def_key.disambiguated_data.data { . DefPathData::TypeNs(..) | DefPathData::ValueNs(..) => (), . // Not an associated item . _ => return None, . } . 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 { 8 ( 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] { 20 ( 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 { 30 ( 0.00%) match self.kind(id) { 5 ( 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 { . let constness = match self.kind(id) { -- line 1496 ---------------------------------------- -- 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> { 30 ( 0.00%) self.root.tables.fn_sig.get(self, id).unwrap().decode((self, tcx)) . } . . #[inline] 12,649 ( 0.02%) fn def_key(self, index: DefIndex) -> DefKey { 3,614 ( 0.00%) *self . .def_key_cache . .lock() . .entry(index) 7,930 ( 0.01%) .or_insert_with(|| self.root.tables.def_keys.get(self, index).unwrap().decode(self)) 14,456 ( 0.02%) } . . // 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 { 168 ( 0.00%) *def_path_hashes.entry(index).or_insert_with(|| { 155 ( 0.00%) self.root.tables.def_path_hashes.get(self, index).unwrap().decode(self) . }) . } . . #[inline] 588 ( 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) 672 ( 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`. 27,880 ( 0.04%) 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) . }); 27,880 ( 0.04%) 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, . ); . 1,650 ( 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; . } . } . } . } . } . }; . 27,880 ( 0.04%) self.cdata.source_map_import_info.get_or_init(|| { 12 ( 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 { 6,930 ( 0.01%) mut name, 1,980 ( 0.00%) src_hash, 330 ( 0.00%) start_pos, 660 ( 0.00%) end_pos, 1,650 ( 0.00%) mut lines, 1,650 ( 0.00%) mut multibyte_chars, 1,980 ( 0.00%) mut non_narrow_chars, 1,650 ( 0.00%) mut normalized_pos, 1,980 ( 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. 660 ( 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 { 499,140 ( 0.63%) *pos = *pos - start_pos; . } . for mbc in &mut multibyte_chars { 1,136 ( 0.00%) mbc.pos = mbc.pos - start_pos; . } . for swc in &mut non_narrow_chars { 804 ( 0.00%) *swc = *swc - start_pos; . } . for np in &mut normalized_pos { . np.pos = np.pos - start_pos; . } . 5,940 ( 0.01%) let local_version = sess.source_map().new_imported_source_file( 4,290 ( 0.01%) name, 2,310 ( 0.00%) src_hash, . name_hash, . source_length, 660 ( 0.00%) self.cnum, 1,650 ( 0.00%) lines, 1,980 ( 0.00%) multibyte_chars, 1,650 ( 0.00%) non_narrow_chars, 1,320 ( 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, . } 990 ( 0.00%) }) . .collect() . }) . } . } . . impl CrateMetadata { 48 ( 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 { 12 ( 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 = 12 ( 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. 4 ( 0.00%) let def_path_hash_map = root.def_path_hash_map.decode(&blob); . 92 ( 0.00%) CrateMetadata { 4 ( 0.00%) blob, 12 ( 0.00%) root, 16 ( 0.00%) trait_impls, . raw_proc_macros, . source_map_import_info: OnceCell::new(), 16 ( 0.00%) def_path_hash_map, . expn_hash_map: Default::default(), 28 ( 0.00%) alloc_decoding_state, . cnum, 16 ( 0.00%) cnum_map, 20 ( 0.00%) dependencies, . dep_kind: Lock::new(dep_kind), 48 ( 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(), . } 36 ( 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 { 20 ( 0.00%) *extern_crate = Some(new_extern_crate); . } . update . } . . crate fn source(&self) -> &CrateSource { 4 ( 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) { 6 ( 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 { 4 ( 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 { 8 ( 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 { 3,338 ( 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() { 72 ( 0.00%) if global == did.krate { . return Some(DefId { krate: local, index: did.index }); . } . } . . None . } . } . -- line 1964 ---------------------------------------- 300,055 ( 0.38%) -------------------------------------------------------------------------------- -- 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, . } . 14 ( 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() 9 ( 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 { 1,408 ( 0.00%) self.override_span.unwrap_or_else(|| Span::with_root_ctxt(lo, hi)) . } . . /// Returns the next token, and info about preceding whitespace, if any. 7,175 ( 0.01%) fn next_token(&mut self) -> (Spacing, Token) { . let mut spacing = Spacing::Joint; . . // Skip `#!` at the start of the file 2,050 ( 0.00%) let start_src_index = self.src_index(self.pos); 3,075 ( 0.00%) let text: &str = &self.src[start_src_index..self.end_src_index]; . let is_beginning_of_file = self.pos == self.start_pos; 1,025 ( 0.00%) if is_beginning_of_file { 4 ( 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 { 1,895 ( 0.00%) let start_src_index = self.src_index(self.pos); 4,380 ( 0.01%) let text: &str = &self.src[start_src_index..self.end_src_index]; . 1,460 ( 0.00%) if text.is_empty() { . let span = self.mk_sp(self.pos, self.pos); 5 ( 0.00%) return (spacing, Token::new(token::Eof, span)); . } . 4,377 ( 0.01%) let token = rustc_lexer::first_token(text); . 2,918 ( 0.00%) let start = self.pos; 1,459 ( 0.00%) self.pos = self.pos + BytePos::from_usize(token.len); . . debug!("next_token: {:?}({:?})", token.kind, self.str_from(start)); . 11,768 ( 0.01%) match self.cook_lexer_token(token.kind, start) { 8,192 ( 0.01%) Some(kind) => { . let span = self.mk_sp(start, self.pos); 6,144 ( 0.01%) return (spacing, Token::new(kind, span)); . } . None => spacing = Spacing::Alone, . } . } 9,225 ( 0.01%) } . . /// 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. 105 ( 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()), . ); . } 120 ( 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 { 7,295 ( 0.01%) Some(match token { 39 ( 0.00%) rustc_lexer::TokenKind::LineComment { doc_style } => { . // Skip non-doc comments 150 ( 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); 120 ( 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 => { 1,528 ( 0.00%) let is_raw_ident = token == rustc_lexer::TokenKind::RawIdent; 1,910 ( 0.00%) let is_unknown_prefix = token == rustc_lexer::TokenKind::UnknownPrefix; . let mut ident_start = start; 764 ( 0.00%) if is_raw_ident { . ident_start = ident_start + BytePos(2); . } 1,146 ( 0.00%) if is_unknown_prefix { . self.report_unknown_prefix(start); . } 1,910 ( 0.00%) let sym = nfc_normalize(self.str_from(ident_start)); . let span = self.mk_sp(start, self.pos); 1,528 ( 0.00%) self.sess.symbol_gallery.insert(sym, span); 764 ( 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); . } 2,674 ( 0.00%) 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) . } 224 ( 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); 42 ( 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 { 5 ( 0.00%) Some(Symbol::intern(string)) . } . } else { . None . }; 112 ( 0.00%) token::Literal(token::Lit { kind, symbol, suffix }) . } . 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); . if starts_with_number { . self.err_span_(start, self.pos, "lifetimes cannot start with a number"); -- line 280 ---------------------------------------- -- 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? . } . }) . } . 288 ( 0.00%) fn cook_doc_comment( . &self, . content_start: BytePos, . content: &str, . comment_kind: CommentKind, . doc_style: DocStyle, . ) -> TokenKind { 24 ( 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, . }; . 72 ( 0.00%) token::DocComment(comment_kind, attr_style, Symbol::intern(content)) 360 ( 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 380 ---------------------------------------- . 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' ' . } 8 ( 0.00%) rustc_lexer::LiteralKind::Str { terminated } => { 8 ( 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##" "## . } 12 ( 0.00%) rustc_lexer::LiteralKind::Int { base, empty_int } => { 6 ( 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); 18 ( 0.00%) (token::Integer, self.symbol_from_to(start, suffix_start)) . }; . } . rustc_lexer::LiteralKind::Float { base, empty_exponent } => { . if empty_exponent { . self.err_span_(start, self.pos, "expected at least one digit in exponent"); . } . . match base { -- line 439 ---------------------------------------- -- line 452 ---------------------------------------- . } . . 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); 24 ( 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 { 2,645 ( 0.00%) 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); 138 ( 0.00%) Symbol::intern(self.str_from_to(start, end)) . } . . /// Slice of the source text spanning from `start` up to but excluding `end`. 444 ( 0.00%) fn str_from_to(&self, start: BytePos, end: BytePos) -> &str { . &self.src[self.src_index(start)..self.src_index(end)] 1,776 ( 0.00%) } . . 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, . ) { 48 ( 0.00%) let lit_content = self.str_from_to(content_start, content_end); 528 ( 0.00%) unescape::unescape_literal(lit_content, mode, &mut |range, result| { . // Here we only check for errors. The actual unescaping is done later. 88 ( 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, . ); . } 396 ( 0.00%) }); . } . . fn validate_int_literal(&self, base: Base, content_start: BytePos, content_end: BytePos) { 24 ( 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)); . } . } . } . } . 3,438 ( 0.00%) pub fn nfc_normalize(string: &str) -> Symbol { . use unicode_normalization::{is_nfc_quick, IsNormalized, UnicodeNormalization}; 764 ( 0.00%) match is_nfc_quick(string.chars()) { 3,820 ( 0.00%) IsNormalized::Yes => Symbol::intern(string), . _ => { . let normalized_str: String = string.chars().nfc().collect(); . Symbol::intern(&normalized_str) . } . } . } 4,468 ( 0.01%) -------------------------------------------------------------------------------- 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 ./stdio-common/vfscanf-internal.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/multiarch/memset-vec-unaligned-erms.S ./string/../sysdeps/x86_64/strcmp.S -------------------------------------------------------------------------------- Ir -------------------------------------------------------------------------------- 29,602,405 (37.20%) events annotated