-------------------------------------------------------------------------------- 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 actix_connect --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg feature="default" --cfg feature="http" --cfg feature="uri" -C metadata=a98cb48206af6167 -C extra-filename=-a98cb48206af6167 --out-dir /usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps -L dependency=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps --extern actix_codec=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libactix_codec-e0cdd96b7e95aa27.rmeta --extern actix_rt=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libactix_rt-0a0c5ceb11d95db6.rmeta --extern actix_service=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libactix_service-ef589acaae42a3aa.rmeta --extern actix_utils=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libactix_utils-b0124228d36c3083.rmeta --extern derive_more=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libderive_more-535cd9e448c6f9a0.so --extern either=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libeither-42f796b4844bb4b9.rmeta --extern futures_util=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libfutures_util-26e1eb61cff44b2f.rmeta --extern http=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libhttp-448493be3d51bac4.rmeta --extern log=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/liblog-4f7417fc1215ce43.rmeta --extern trust_dns_proto=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libtrust_dns_proto-4ccffcbd1c494136.rmeta --extern trust_dns_resolver=/usr/home/liquid/tmp/.tmpa40Oan/target/debug/deps/libtrust_dns_resolver-5b612151f07bf146.rmeta -Adeprecated -Aunknown-lints -Zincremental-verify-ich Data file: results/cgout-w-profiling-actix-connect-2.0.0-Debug-Full Events recorded: Ir Events shown: Ir Event sort order: Ir Thresholds: 0.1 Include dirs: User annotated: Auto-annotation: on -------------------------------------------------------------------------------- Ir -------------------------------------------------------------------------------- 1,222,910,538 (100.0%) PROGRAM TOTALS -------------------------------------------------------------------------------- Ir file:function -------------------------------------------------------------------------------- 76,930,574 ( 6.29%) ./elf/dl-lookup.c:_dl_lookup_symbol_x 68,750,478 ( 5.62%) ./elf/dl-lookup.c:do_lookup_x 35,139,866 ( 2.87%) ./malloc/malloc.c:_int_malloc 34,379,895 ( 2.81%) ./malloc/malloc.c:_int_free 20,883,626 ( 1.71%) ./malloc/malloc.c:malloc 17,776,154 ( 1.45%) ???:llvm::FPPassManager::runOnFunction(llvm::Function&) 15,539,067 ( 1.27%) ./string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:__memcpy_avx_unaligned_erms 10,813,438 ( 0.88%) ./elf/../sysdeps/x86_64/dl-machine.h:_dl_relocate_object 9,879,774 ( 0.81%) ./malloc/malloc.c:free 7,538,690 ( 0.62%) ???:(anonymous namespace)::Verifier::visitMDNode(llvm::MDNode const&, (anonymous namespace)::Verifier::AreDebugLocsAllowed) 7,224,883 ( 0.59%) ./string/../sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S:__memset_avx2_erms 6,073,177 ( 0.50%) ./malloc/malloc.c:malloc_consolidate 5,899,060 ( 0.48%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, (), core::hash::BuildHasherDefault>>::from_hash::>::{closure#0}> 4,846,161 ( 0.40%) ./elf/dl-lookup.c:check_match 4,689,818 ( 0.38%) ???:llvm::raw_svector_ostream::write_impl(char const*, unsigned long) 4,620,542 ( 0.38%) ./string/../sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S:__memcmp_avx2_movbe 4,483,371 ( 0.37%) ???:llvm::AttributeList::addAttributes(llvm::LLVMContext&, unsigned int, llvm::AttrBuilder const&) const 4,371,176 ( 0.36%) ???:llvm::MCObjectStreamer::emitBytes(llvm::StringRef) 4,251,008 ( 0.35%) ???:llvm::PassRegistry::enumerateWith(llvm::PassRegistrationListener*) 4,201,620 ( 0.34%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u32 4,141,105 ( 0.34%) ./elf/do-rel.h:_dl_relocate_object 4,133,602 ( 0.34%) ???:llvm::FoldingSetNodeID::AddInteger(unsigned int) 3,956,847 ( 0.32%) ./malloc/malloc.c:unlink_chunk.constprop.0 3,887,031 ( 0.32%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/opaque.rs:>::decode 3,863,974 ( 0.32%) ???:llvm::PMDataManager::verifyPreservedAnalysis(llvm::Pass*) 3,862,063 ( 0.32%) ???:llvm::SelectionDAG::Combine(llvm::CombineLevel, llvm::AAResults*, llvm::CodeGenOpt::Level) 3,568,496 ( 0.29%) ???:llvm::X86TargetLowering::X86TargetLowering(llvm::X86TargetMachine const&, llvm::X86Subtarget const&) 3,553,270 ( 0.29%) /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/vec/mod.rs:>::decode 3,426,551 ( 0.28%) ???:llvm::StringMapImpl::LookupBucketFor(llvm::StringRef) 3,364,116 ( 0.28%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_usize 3,310,663 ( 0.27%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:>::decode 3,052,960 ( 0.25%) ???:llvm::TargetLoweringBase::computeRegisterProperties(llvm::TargetRegisterInfo const*) 3,025,478 ( 0.25%) ./malloc/malloc.c:realloc 2,910,809 ( 0.24%) ???:SetImpliedBits(llvm::FeatureBitset&, llvm::FeatureBitset const&, llvm::ArrayRef) 2,870,676 ( 0.23%) ???:(anonymous namespace)::Verifier::visitInstruction(llvm::Instruction&) 2,718,443 ( 0.22%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs:, (), core::hash::BuildHasherDefault>>::from_hash::>::{closure#0}> 2,699,098 ( 0.22%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs:::intern_ty 2,614,460 ( 0.21%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs:::hash:: 2,567,537 ( 0.21%) ???:llvm::MachineInstr::addOperand(llvm::MachineFunction&, llvm::MachineOperand const&) 2,508,563 ( 0.21%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs:>, (), core::hash::BuildHasherDefault>>::from_hash::>>::{closure#0}> 2,463,347 ( 0.20%) ???:(anonymous namespace)::RegAllocFast::allocateBasicBlock(llvm::MachineBasicBlock&) 2,447,430 ( 0.20%) ???:llvm::MCExpr::evaluateAsRelocatableImpl(llvm::MCValue&, llvm::MCAssembler const*, llvm::MCAsmLayout const*, llvm::MCFixup const*, llvm::DenseMap, llvm::detail::DenseMapPair > const*, bool) const 2,361,654 ( 0.19%) ???:llvm::MDNode::MDNode(llvm::LLVMContext&, unsigned int, llvm::Metadata::StorageType, llvm::ArrayRef, llvm::ArrayRef) 2,355,449 ( 0.19%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs:::_intern_substs 2,249,506 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs:::eq 2,237,074 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:::_intern_substs 2,204,784 ( 0.18%) /usr/home/liquid/rust/worktree-benchmarking/library/std/src/sys/unix/alloc.rs:__rdl_alloc 2,140,012 ( 0.17%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/num/uint_macros.rs:::short_write_process_buffer:: 2,129,748 ( 0.17%) ???:llvm::MDString::get(llvm::LLVMContext&, llvm::StringRef) 2,127,629 ( 0.17%) ./malloc/malloc.c:_int_realloc 2,124,514 ( 0.17%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:)>>::remove_entry::>::{closure#0}> 2,102,591 ( 0.17%) ???:(anonymous namespace)::ELFObjectWriter::recordRelocation(llvm::MCAssembler&, llvm::MCAsmLayout const&, llvm::MCFragment const*, llvm::MCFixup const&, llvm::MCValue, unsigned long&) [clone .llvm.14145361893594770252] 2,074,649 ( 0.17%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>, (), core::hash::BuildHasherDefault>>::from_hash::>>::{closure#0}> 1,941,168 ( 0.16%) ???:llvm::FoldingSetBase::FindNodeOrInsertPos(llvm::FoldingSetNodeID const&, void*&, llvm::FoldingSetBase::FoldingSetInfo const&) 1,927,134 ( 0.16%) ./string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:__memcpy_sse2_unaligned_erms 1,924,703 ( 0.16%) ???:llvm::MCAsmLayout::getSymbolOffset(llvm::MCSymbol const&) const 1,857,442 ( 0.15%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/snap-1.0.1/src/decompress.rs:::decompress 1,816,900 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/codec.rs:<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable>::decode 1,796,497 ( 0.15%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_usize 1,735,774 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:>::decode 1,715,046 ( 0.14%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/rustc-hash-1.1.0/src/lib.rs:<&str as core::hash::Hash>::hash:: 1,683,789 ( 0.14%) ???:llvm::hashing::detail::hash_combine_recursive_helper::combine(unsigned long, char*, char*) 1,668,580 ( 0.14%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_metadata/src/rmeta/decoder.rs:::cached_ty_for_shorthand::<<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable>::decode::{closure#0}> 1,662,478 ( 0.14%) ???:llvm::MCStreamer::emitULEB128IntValue(unsigned long, unsigned int) 1,646,502 ( 0.13%) ???:char* llvm::hashing::detail::hash_combine_recursive_helper::combine_data(unsigned long&, char*, char*, llvm::Metadata*) 1,645,692 ( 0.13%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:::cached_ty_for_shorthand::<<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable>::decode::{closure#0}> 1,636,297 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_infer/src/infer/mod.rs:::shallow_resolve_ty 1,606,013 ( 0.13%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:, (), core::hash::BuildHasherDefault>>::from_hash::, rustc_middle::ty::context::Interned>::{closure#0}> 1,584,194 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs:, <&rustc_middle::ty::list::List as rustc_serialize::serialize::Decodable>::decode::{closure#0}> as rustc_middle::ty::context::InternAs<[rustc_middle::ty::subst::GenericArg], &rustc_middle::ty::list::List>>::intern_with::<::mk_substs, <&rustc_middle::ty::list::List as rustc_serialize::serialize::Decodable>::decode::{closure#0}>>::{closure#0}> 1,549,633 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}> as core::iter::traits::iterator::Iterator>::fold::<(), core::iter::traits::iterator::Iterator::for_each::call as alloc::vec::spec_extend::SpecExtend, >::decode::{closure#0}>, ::imported_source_files::{closure#3}::{closure#0}>>>::spec_extend::{closure#0}>::{closure#0}> 1,545,754 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u32 1,541,572 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/library/core/src/slice/iter/macros.rs:::new_imported_source_file 1,534,811 ( 0.13%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/lib.rs:::new_imported_source_file 1,509,804 ( 0.12%) ???:llvm::TargetRegisterInfo::checkAllSuperRegsMarked(llvm::BitVector const&, llvm::ArrayRef) const 1,495,674 ( 0.12%) ???:llvm::coro::declaresIntrinsics(llvm::Module const&, std::initializer_list) 1,474,462 ( 0.12%) ???:llvm::BumpPtrAllocatorImpl::Allocate(unsigned long, llvm::Align) 1,473,885 ( 0.12%) ???:(anonymous namespace)::Verifier::verifyFunctionAttrs(llvm::FunctionType*, llvm::AttributeList, llvm::Value const*, bool) 1,435,536 ( 0.12%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs:::short_write_process_buffer:: 1,397,763 ( 0.11%) ???:(anonymous namespace)::GetCFGOnlyPasses::passEnumerate(llvm::PassInfo const*) [clone .llvm.764396836974782617] 1,386,290 ( 0.11%) ./string/../sysdeps/x86_64/multiarch/strcmp-avx2.S:__strncmp_avx2 1,379,602 ( 0.11%) ./malloc/malloc.c:calloc 1,365,576 ( 0.11%) ???:llvm::MDNodeKeyImpl::MDNodeKeyImpl(llvm::DICompositeType const*) 1,360,701 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_serialize/src/leb128.rs:::read_u64 1,353,956 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/subst.rs:::fold_ty 1,353,935 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_mir_dataflow/src/drop_flag_effects.rs:rustc_mir_dataflow::drop_flag_effects::on_all_children_bits::is_terminal_path 1,350,898 ( 0.11%) ???:(anonymous namespace)::VarLocBasedLDV::process(llvm::MachineInstr&, (anonymous namespace)::VarLocBasedLDV::OpenRangesSet&, (anonymous namespace)::VarLocBasedLDV::VarLocMap&, llvm::SmallVector<(anonymous namespace)::VarLocBasedLDV::TransferDebugPair, 4u>&) 1,325,145 ( 0.11%) ???:llvm::MCAsmLayout::getFragmentOffset(llvm::MCFragment const*) const 1,322,808 ( 0.11%) ???:llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int) 1,308,915 ( 0.11%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs:, (), core::hash::BuildHasherDefault>>::from_hash::>::{closure#0}> 1,306,775 ( 0.11%) ???:llvm::PMDataManager::removeNotPreservedAnalysis(llvm::Pass*) 1,267,704 ( 0.10%) /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_span/src/symbol.rs:::intern 1,264,929 ( 0.10%) ???:(anonymous namespace)::ELFWriter::writeObject(llvm::MCAssembler&, llvm::MCAsmLayout const&) 1,264,723 ( 0.10%) /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs:>>::from_key_hashed_nocheck:: 1,252,791 ( 0.10%) ???:multikeySort(llvm::MutableArrayRef*>, int) 1,249,158 ( 0.10%) ???:llvm::DIEAbbrev::Profile(llvm::FoldingSetNodeID&) const -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/library/alloc/src/vec/mod.rs -------------------------------------------------------------------------------- Ir -- line 416 ---------------------------------------- . /// ``` . /// # #![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] 675 ( 0.00%) pub const fn new() -> Self { 1,031,678 ( 0.08%) Vec { buf: RawVec::NEW, len: 0 } 817 ( 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 461 ---------------------------------------- . /// vec.push(11); . /// assert_eq!(vec.len(), 11); . /// assert!(vec.capacity() >= 11); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use] 356 ( 0.00%) pub fn with_capacity(capacity: usize) -> Self { 89 ( 0.00%) Self::with_capacity_in(capacity, Global) 178 ( 0.00%) } . . /// 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 479 ---------------------------------------- -- line 529 ---------------------------------------- . /// . /// // Put everything back together into a Vec . /// let rebuilt = Vec::from_raw_parts(p, len, cap); . /// assert_eq!(rebuilt, [4, 5, 6]); . /// } . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] 108 ( 0.00%) pub unsafe fn from_raw_parts(ptr: *mut T, length: usize, capacity: usize) -> Self { 18 ( 0.00%) unsafe { Self::from_raw_parts_in(ptr, length, capacity, Global) } 36 ( 0.00%) } . } . . impl Vec { . /// Constructs a new, empty `Vec`. . /// . /// The vector will not allocate until elements are pushed onto it. . /// . /// # Examples -- line 547 ---------------------------------------- -- line 600 ---------------------------------------- . /// // ...but this may make the vector reallocate . /// 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")] 2,891 ( 0.00%) pub fn with_capacity_in(capacity: usize, alloc: A) -> Self { 443,480 ( 0.04%) Vec { buf: RawVec::with_capacity_in(capacity, alloc), len: 0 } 826 ( 0.00%) } . . /// 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 618 ---------------------------------------- -- line 676 ---------------------------------------- . /// . /// // 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")] 520 ( 0.00%) pub unsafe fn from_raw_parts_in(ptr: *mut T, length: usize, capacity: usize, alloc: A) -> Self { 21,828 ( 0.00%) unsafe { Vec { buf: RawVec::from_raw_parts_in(ptr, capacity, alloc), len: length } } 80 ( 0.00%) } . . /// 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 694 ---------------------------------------- -- line 777 ---------------------------------------- . /// # Examples . /// . /// ``` . /// let vec: Vec = Vec::with_capacity(10); . /// assert_eq!(vec.capacity(), 10); . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] 552 ( 0.00%) pub fn capacity(&self) -> usize { 124,868 ( 0.01%) self.buf.capacity() 276 ( 0.00%) } . . /// 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. . /// . /// # Panics -- line 795 ---------------------------------------- -- line 800 ---------------------------------------- . /// . /// ``` . /// 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")] 785 ( 0.00%) pub fn reserve(&mut self, additional: usize) { 136,600 ( 0.01%) self.buf.reserve(self.len, additional); 314 ( 0.00%) } . . /// 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 . /// requests. Therefore, capacity can not be relied upon to be precisely -- line 818 ---------------------------------------- -- 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) { 4,136 ( 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 926 ---------------------------------------- . /// let mut vec = Vec::with_capacity(10); . /// vec.extend([1, 2, 3]); . /// assert_eq!(vec.capacity(), 10); . /// vec.shrink_to_fit(); . /// assert!(vec.capacity() >= 3); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] 306 ( 0.00%) 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. 8,767 ( 0.00%) if self.capacity() > self.len { 4,409 ( 0.00%) self.buf.shrink_to_fit(self.len); . } 204 ( 0.00%) } . . /// 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. . /// . /// If the current capacity is less than the lower limit, this is a no-op. . /// -- line 949 ---------------------------------------- -- line 987 ---------------------------------------- . /// vec.extend([1, 2, 3]); . /// . /// assert_eq!(vec.capacity(), 10); . /// 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")] 204 ( 0.00%) pub fn into_boxed_slice(mut self) -> Box<[T], A> { . unsafe { 612 ( 0.00%) self.shrink_to_fit(); 2,838 ( 0.00%) let me = ManuallyDrop::new(self); 1,020 ( 0.00%) let buf = ptr::read(&me.buf); 510 ( 0.00%) let len = me.len(); 1,326 ( 0.00%) buf.into_box(len).assume_init() 102 ( 0.00%) } 204 ( 0.00%) } . . /// Shortens the vector, keeping the first `len` elements and dropping . /// the rest. . /// . /// If `len` is greater than the vector's current length, this has no . /// effect. . /// . /// The [`drain`] method can emulate `truncate`, but causes the excess -- line 1011 ---------------------------------------- -- 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")] 49,013 ( 0.00%) 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. 46,001 ( 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); 64,933 ( 0.01%) self.len = len; 1,793 ( 0.00%) ptr::drop_in_place(s); . } 58,796 ( 0.00%) } . . /// Extracts a slice containing the entire vector. . /// . /// Equivalent to `&s[..]`. . /// . /// # Examples . /// . /// ``` -- line 1076 ---------------------------------------- -- line 1123 ---------------------------------------- . /// assert_eq!(*x_ptr.add(i), 1 << i); . /// } . /// } . /// ``` . /// . /// [`as_mut_ptr`]: Vec::as_mut_ptr . #[stable(feature = "vec_as_ptr", since = "1.37.0")] . #[inline] 2,028 ( 0.00%) 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. 1,407,360 ( 0.12%) let ptr = self.buf.ptr(); . unsafe { 1,014 ( 0.00%) assume(!ptr.is_null()); . } . ptr 2,028 ( 0.00%) } . . /// Returns an unsafe mutable pointer to the vector's buffer. . /// . /// The caller must ensure that the vector outlives the pointer this . /// function returns, or else it will end up pointing to garbage. . /// Modifying the vector may cause its buffer to be reallocated, . /// which would also make any pointers to it invalid. . /// -- line 1147 ---------------------------------------- -- line 1159 ---------------------------------------- . /// *x_ptr.add(i) = i as i32; . /// } . /// x.set_len(size); . /// } . /// assert_eq!(&*x, &[0, 1, 2, 3]); . /// ``` . #[stable(feature = "vec_as_ptr", since = "1.37.0")] . #[inline] 7,016 ( 0.00%) 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. 1,491,816 ( 0.12%) let ptr = self.buf.ptr(); . unsafe { 3,508 ( 0.00%) assume(!ptr.is_null()); . } . ptr 7,016 ( 0.00%) } . . /// Returns a reference to the underlying allocator. . #[unstable(feature = "allocator_api", issue = "32838")] . #[inline] 838 ( 0.00%) pub fn allocator(&self) -> &A { 838 ( 0.00%) self.buf.allocator() 838 ( 0.00%) } . . /// Forces the length of the vector to `new_len`. . /// . /// This is a low-level operation that maintains none of the normal . /// invariants of the type. Normally changing the length of a vector . /// is done using one of the safe operations instead, such as . /// [`truncate`], [`resize`], [`extend`], or [`clear`]. . /// -- line 1190 ---------------------------------------- -- line 1256 ---------------------------------------- . /// vec.set_len(0); . /// } . /// ``` . /// . /// 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")] 1,668 ( 0.00%) pub unsafe fn set_len(&mut self, new_len: usize) { . debug_assert!(new_len <= self.capacity()); . 269,304 ( 0.02%) self.len = new_len; 7,134 ( 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")] 3,031 ( 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); . } . 468 ( 0.00%) let len = self.len(); 942 ( 0.00%) if index > len { . assert_failed(index, len); . } . . // space for the new element 1,348 ( 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.) 1,719 ( 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); . } 1,236 ( 0.00%) self.set_len(len + 1); . } 2,598 ( 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 1387 ---------------------------------------- . /// . /// ``` . /// let mut v = vec![1, 2, 3]; . /// assert_eq!(v.remove(1), 2); . /// assert_eq!(v, [1, 3]); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[track_caller] 183 ( 0.00%) 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); . } . 167 ( 0.00%) let len = self.len(); 592 ( 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. 606 ( 0.00%) ret = ptr::read(ptr); . . // Shift everything down to fill in that spot. 392 ( 0.00%) ptr::copy(ptr.offset(1), ptr, len - index - 1); . } 182 ( 0.00%) self.set_len(len - 1); . ret . } 305 ( 0.00%) } . . /// 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 . /// original order, and preserves the order of the retained elements. . /// . /// # Examples -- line 1431 ---------------------------------------- -- 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")] 124,593 ( 0.01%) pub fn retain(&mut self, mut f: F) . where . F: FnMut(&T) -> bool, . { 3,673 ( 0.00%) self.retain_mut(|elem| f(elem)); 122,080 ( 0.01%) } . . /// 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, . { 15,610 ( 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) { 13,789 ( 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), 11,281 ( 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, . { 161,538 ( 0.01%) while g.processed_len != original_len { . // SAFETY: Unchecked element must be valid. . let cur = unsafe { &mut *g.v.as_mut_ptr().add(g.processed_len) }; 43,597 ( 0.00%) if !f(cur) { . // Advance early to avoid double drop if `drop_in_place` panicked. 8,170 ( 0.00%) g.processed_len += 1; 4,124 ( 0.00%) g.deleted_cnt += 1; . // SAFETY: We never touch this element again after dropped. 251 ( 0.00%) unsafe { ptr::drop_in_place(cur) }; . // We already advanced the counter. . if DELETED { . continue; . } else { . break; . } . } . if DELETED { . // SAFETY: `deleted_cnt` > 0, so the hole slot must not overlap with current element. . // We use copy for move, and never touch this element again. . unsafe { 6,489 ( 0.00%) let hole_slot = g.v.as_mut_ptr().add(g.processed_len - g.deleted_cnt); . ptr::copy_nonoverlapping(cur, hole_slot, 1); . } . } 6,015 ( 0.00%) g.processed_len += 1; . } . } . . // Stage 1: Nothing was deleted. . process_loop::(original_len, &mut f, &mut g); . . // Stage 2: Some elements were deleted. . process_loop::(original_len, &mut f, &mut g); -- line 1565 ---------------------------------------- -- line 1606 ---------------------------------------- . /// ``` . /// let mut vec = vec!["foo", "bar", "Bar", "baz", "bar"]; . /// . /// vec.dedup_by(|a, b| a.eq_ignore_ascii_case(b)); . /// . /// assert_eq!(vec, ["foo", "bar", "baz", "bar"]); . /// ``` . #[stable(feature = "dedup_by", since = "1.16.0")] 5,901 ( 0.00%) pub fn dedup_by(&mut self, mut same_bucket: F) . where . F: FnMut(&mut T, &mut T) -> bool, . { 1,182 ( 0.00%) let len = self.len(); 3,120 ( 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 { 6,217 ( 0.00%) while gap.read < len { . let read_ptr = ptr.add(gap.read); . let prev_ptr = ptr.add(gap.write.wrapping_sub(1)); . 274 ( 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 */ 4,369 ( 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); . } 6,744 ( 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")] 8,616 ( 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. 2,676,375 ( 0.22%) if self.len == self.buf.capacity() { 170,755 ( 0.01%) self.buf.reserve_for_push(self.len); . } . unsafe { 88,349 ( 0.01%) let end = self.as_mut_ptr().add(self.len); 12,559 ( 0.00%) ptr::write(end, value); 3,156,332 ( 0.26%) self.len += 1; . } 3,334 ( 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 { 388,293 ( 0.03%) if self.len == 0 { 31 ( 0.00%) None . } else { . unsafe { 270,485 ( 0.02%) self.len -= 1; 67,366 ( 0.01%) 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")] 364 ( 0.00%) pub fn append(&mut self, other: &mut Self) { . unsafe { . self.append_elements(other.as_slice() as _); . other.set_len(0); . } 312 ( 0.00%) } . . /// Appends elements to `Self` from other buffer. . #[cfg(not(no_global_oom_handling))] . #[inline] 970 ( 0.00%) unsafe fn append_elements(&mut self, other: *const [T]) { 97 ( 0.00%) let count = unsafe { (*other).len() }; 97 ( 0.00%) self.reserve(count); 29,623 ( 0.00%) let len = self.len(); 327 ( 0.00%) unsafe { ptr::copy_nonoverlapping(other as *const T, self.as_mut_ptr().add(len), count) }; 221,592 ( 0.02%) self.len += count; 194 ( 0.00%) } . . /// 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 . /// unspecified how many elements are removed. -- line 1808 ---------------------------------------- -- line 1820 ---------------------------------------- . /// assert_eq!(v, &[1]); . /// assert_eq!(u, &[2, 3]); . /// . /// // A full range clears the vector . /// v.drain(..); . /// assert_eq!(v, &[]); . /// ``` . #[stable(feature = "drain", since = "1.6.0")] 1,260 ( 0.00%) pub fn drain(&mut self, range: R) -> Drain<'_, T, A> . where . R: RangeBounds, . { . // Memory safety . // . // 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. . // 9,997 ( 0.00%) let len = self.len(); 2,700 ( 0.00%) let Range { start, end } = slice::range(range, ..len); . . unsafe { . // set self.vec length's to start, to be safe in case Drain is leaked 540 ( 0.00%) self.set_len(start); . // Use the borrow in the IterMut to indicate borrowing behavior of the . // whole Drain iterator (like &mut T). 3,404 ( 0.00%) let range_slice = slice::from_raw_parts_mut(self.as_mut_ptr().add(start), end - start); 1,760 ( 0.00%) Drain { . tail_start: end, 1,288 ( 0.00%) tail_len: len - end, 900 ( 0.00%) iter: range_slice.iter(), 720 ( 0.00%) vec: NonNull::from(self), . } . } 360 ( 0.00%) } . . /// Clears the vector, removing all values. . /// . /// Note that this method has no effect on the allocated capacity . /// of the vector. . /// . /// # Examples . /// -- line 1866 ---------------------------------------- -- line 1869 ---------------------------------------- . /// . /// v.clear(); . /// . /// assert!(v.is_empty()); . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] . pub fn clear(&mut self) { 86,662 ( 0.01%) self.truncate(0) . } . . /// Returns the number of elements in the vector, also referred to . /// as its 'length'. . /// . /// # Examples . /// . /// ``` . /// let a = vec![1, 2, 3]; . /// assert_eq!(a.len(), 3); . /// ``` . #[inline] . #[stable(feature = "rust1", since = "1.0.0")] 2,260 ( 0.00%) pub fn len(&self) -> usize { 1,130 ( 0.00%) self.len 2,260 ( 0.00%) } . . /// Returns `true` if the vector contains no elements. . /// . /// # Examples . /// . /// ``` . /// let mut v = Vec::new(); . /// assert!(v.is_empty()); . /// . /// v.push(1); . /// assert!(!v.is_empty()); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] 838 ( 0.00%) pub fn is_empty(&self) -> bool { 128,483 ( 0.01%) self.len() == 0 1,676 ( 0.00%) } . . /// 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. . /// . /// # Panics -- line 1917 ---------------------------------------- -- 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); . } . 596 ( 0.00%) if at > self.len() { . assert_failed(at, self.len()); . } . 461 ( 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()), . ); . } . 22 ( 0.00%) let other_len = self.len - at; . let mut other = Vec::with_capacity_in(other_len, self.allocator().clone()); . . // Unsafely `set_len` and copy items to `other`. . unsafe { . self.set_len(at); . other.set_len(other_len); . . ptr::copy_nonoverlapping(self.as_ptr().add(at), other.as_mut_ptr(), other.len()); . } 44 ( 0.00%) other . } . . /// Resizes the `Vec` in-place so that `len` is equal to `new_len`. . /// . /// If `new_len` is greater than `len`, the `Vec` is extended by the . /// difference, with each additional slot filled with the result of . /// calling the closure `f`. The return values from `f` will end up . /// in the `Vec` in the order they have been generated. -- line 1973 ---------------------------------------- -- 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")] 8,446 ( 0.00%) pub fn resize_with(&mut self, new_len: usize, f: F) . where . F: FnMut() -> T, . { 1,124 ( 0.00%) let len = self.len(); 2,248 ( 0.00%) if new_len > len { 8,446 ( 0.00%) self.extend_with(new_len - len, ExtendFunc(f)); . } else { . self.truncate(new_len); . } 7,322 ( 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 2064 ---------------------------------------- . /// unsafe { . /// v.set_len(3); . /// } . /// . /// assert_eq!(&v, &[0, 1, 2]); . /// ``` . #[stable(feature = "vec_spare_capacity", since = "1.60.0")] . #[inline] 735 ( 0.00%) 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 { 980 ( 0.00%) slice::from_raw_parts_mut( 1,729 ( 0.00%) self.as_mut_ptr().add(self.len) as *mut MaybeUninit, 1,490 ( 0.00%) self.buf.capacity() - self.len, . ) . } 490 ( 0.00%) } . . /// 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 . /// (e.g. by reading from a file) before marking the data as initialized using . /// the [`set_len`] method. . /// -- line 2090 ---------------------------------------- -- line 2189 ---------------------------------------- . /// assert_eq!(vec, ["hello", "world", "world"]); . /// . /// let mut vec = vec![1, 2, 3, 4]; . /// vec.resize(2, 0); . /// assert_eq!(vec, [1, 2]); . /// ``` . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "vec_resize", since = "1.5.0")] 10,460 ( 0.00%) pub fn resize(&mut self, new_len: usize, value: T) { 1,046 ( 0.00%) let len = self.len(); . 3,138 ( 0.00%) if new_len > len { 2,586 ( 0.00%) self.extend_with(new_len - len, ExtendElement(value)) . } else { . self.truncate(new_len); . } 1,846 ( 0.00%) } . . /// Clones and appends all elements in a slice to the `Vec`. . /// . /// Iterates over the slice `other`, clones each element, and then appends . /// it to this `Vec`. The `other` slice is traversed in-order. . /// . /// Note that this function is same as [`extend`] except that it is . /// specialized to work with slices instead. If and when Rust gets -- line 2213 ---------------------------------------- -- line 2220 ---------------------------------------- . /// let mut vec = vec![1]; . /// vec.extend_from_slice(&[2, 3, 4]); . /// assert_eq!(vec, [1, 2, 3, 4]); . /// ``` . /// . /// [`extend`]: Vec::extend . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "vec_extend_from_slice", since = "1.6.0")] 1,067 ( 0.00%) pub fn extend_from_slice(&mut self, other: &[T]) { 388 ( 0.00%) self.spec_extend(other.iter()) 194 ( 0.00%) } . . /// Copies elements from `src` range to the end of the vector. . /// . /// # Panics . /// . /// Panics if the starting point is greater than the end point or if . /// the end point is greater than the length of the vector. . /// -- line 2238 ---------------------------------------- -- line 2271 ---------------------------------------- . trait ExtendWith { . fn next(&mut self) -> T; . fn last(self) -> T; . } . . struct ExtendElement(T); . impl ExtendWith for ExtendElement { . fn next(&mut self) -> T { 477 ( 0.00%) self.0.clone() . } . fn last(self) -> T { . self.0 . } . } . . struct ExtendFunc(F); . impl T> ExtendWith for ExtendFunc { -- line 2287 ---------------------------------------- -- 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. 83,479 ( 0.01%) fn extend_with>(&mut self, n: usize, mut value: E) { . self.reserve(n); . . unsafe { 1,963 ( 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); . } . 92,170 ( 0.01%) if n > 0 { . // We can write the last element directly without cloning needlessly . ptr::write(ptr, value.last()); . local_len.increment_len(1); . } . . // len set by scope guard . } 66,413 ( 0.01%) } . } . . 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) { 844 ( 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")] 21,044 ( 0.00%) pub fn from_elem(elem: T, n: usize) -> Vec { 108,250 ( 0.01%) ::from_elem(elem, n, Global) 25,125 ( 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 2423 ---------------------------------------- . //////////////////////////////////////////////////////////////////////////////// . // Common trait implementations for Vec . //////////////////////////////////////////////////////////////////////////////// . . #[stable(feature = "rust1", since = "1.0.0")] . impl ops::Deref for Vec { . type Target = [T]; . 3,042 ( 0.00%) fn deref(&self) -> &[T] { 2,319,406 ( 0.19%) unsafe { slice::from_raw_parts(self.as_ptr(), self.len) } 2,079 ( 0.00%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl ops::DerefMut for Vec { 18 ( 0.00%) fn deref_mut(&mut self) -> &mut [T] { 544,807 ( 0.04%) unsafe { slice::from_raw_parts_mut(self.as_mut_ptr(), self.len) } 12 ( 0.00%) } . } . . #[cfg(not(no_global_oom_handling))] . trait SpecCloneFrom { . fn clone_from(this: &mut Self, other: &Self); . } . . #[cfg(not(no_global_oom_handling))] -- line 2448 ---------------------------------------- -- 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))] 66,053 ( 0.01%) fn clone(&self) -> Self { 1,530 ( 0.00%) let alloc = self.allocator().clone(); 2,570 ( 0.00%) <[T]>::to_vec_in(&**self, alloc) 81,007 ( 0.01%) } . . // HACK(japaric): with cfg(test) the inherent `[T]::to_vec` method, which is . // required for this method definition, is not available. Instead use the . // `slice::to_vec` function which is only available with cfg(test) . // NB see the slice::hack module in slice.rs for more information . #[cfg(test)] . fn clone(&self) -> Self { . let alloc = self.allocator().clone(); -- line 2487 ---------------------------------------- -- line 2503 ---------------------------------------- . /// let b = std::collections::hash_map::RandomState::new(); . /// let v: Vec = vec![0xa8, 0x3c, 0x09]; . /// let s: &[u8] = &[0xa8, 0x3c, 0x09]; . /// assert_eq!(b.hash_one(v), b.hash_one(s)); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . impl Hash for Vec { . #[inline] 28 ( 0.00%) fn hash(&self, state: &mut H) { 28 ( 0.00%) Hash::hash(&**self, state) 14 ( 0.00%) } . } . . #[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`" . )] . impl, A: Allocator> Index for Vec { . type Output = I::Output; . . #[inline] 22 ( 0.00%) fn index(&self, index: I) -> &Self::Output { 46,224 ( 0.00%) Index::index(&**self, index) 12 ( 0.00%) } . } . . #[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`" . )] . impl, A: Allocator> IndexMut for Vec { . #[inline] . fn index_mut(&mut self, index: I) -> &mut Self::Output { 212 ( 0.00%) IndexMut::index_mut(&mut **self, index) . } . } . . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . impl FromIterator for Vec { . #[inline] 772 ( 0.00%) fn from_iter>(iter: I) -> Vec { 624,303 ( 0.05%) >::from_iter(iter.into_iter()) 232 ( 0.00%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl IntoIterator for Vec { . type Item = T; . type IntoIter = IntoIter; . . /// Creates a consuming iterator, that is, one that moves each value out of -- line 2556 ---------------------------------------- -- line 2562 ---------------------------------------- . /// ``` . /// let v = vec!["a".to_string(), "b".to_string()]; . /// for s in v.into_iter() { . /// // s has type String, not &String . /// println!("{}", s); . /// } . /// ``` . #[inline] 339 ( 0.00%) fn into_iter(self) -> IntoIter { . unsafe { 218,936 ( 0.02%) let mut me = ManuallyDrop::new(self); 226 ( 0.00%) let alloc = ptr::read(me.allocator()); 536 ( 0.00%) let begin = me.as_mut_ptr(); 339 ( 0.00%) let end = if mem::size_of::() == 0 { . arith_offset(begin as *const i8, me.len() as isize) as *const T . } else { 536 ( 0.00%) begin.add(me.len()) as *const T . }; 113 ( 0.00%) let cap = me.buf.capacity(); 90,918 ( 0.01%) IntoIter { 423 ( 0.00%) buf: NonNull::new_unchecked(begin), . phantom: PhantomData, . cap, . alloc, . ptr: begin, 113 ( 0.00%) end, . } . } 226 ( 0.00%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a, T, A: Allocator> IntoIterator for &'a Vec { . type Item = &'a T; . type IntoIter = slice::Iter<'a, T>; . 76 ( 0.00%) fn into_iter(self) -> slice::Iter<'a, T> { 2,426 ( 0.00%) self.iter() 76 ( 0.00%) } . } . . #[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> { 2,198 ( 0.00%) self.iter_mut() . } . } . . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "rust1", since = "1.0.0")] . impl Extend for Vec { . #[inline] 1,320 ( 0.00%) fn extend>(&mut self, iter: I) { 244,061 ( 0.02%) >::spec_extend(self, iter.into_iter()) 1,320 ( 0.00%) } . . #[inline] . fn extend_one(&mut self, item: T) { 36 ( 0.00%) self.push(item); . } . . #[inline] . fn extend_reserve(&mut self, additional: usize) { . self.reserve(additional); . } . } . . impl Vec { . // leaf method to which various SpecFrom/SpecExtend implementations delegate when . // they have no further optimizations to apply . #[cfg(not(no_global_oom_handling))] 122 ( 0.00%) 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); . // } 72,739 ( 0.01%) while let Some(element) = iterator.next() { 7,653 ( 0.00%) let len = self.len(); 126,184 ( 0.01%) if len == self.capacity() { 817 ( 0.00%) let (lower, _) = iterator.size_hint(); 10 ( 0.00%) self.reserve(lower.saturating_add(1)); . } . unsafe { 232 ( 0.00%) 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 100,577 ( 0.01%) self.set_len(len + 1); . } 24 ( 0.00%) } 938 ( 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 2693 ---------------------------------------- . #[cfg(not(no_global_oom_handling))] . #[inline] . #[stable(feature = "vec_splice", since = "1.21.0")] . pub fn splice(&mut self, range: R, replace_with: I) -> Splice<'_, I::IntoIter, A> . where . R: RangeBounds, . I: IntoIterator, . { 1,496 ( 0.00%) Splice { drain: self.drain(range), replace_with: replace_with.into_iter() } . } . . /// Creates an iterator which uses a closure to determine if an element should be removed. . /// . /// If the closure returns true, then the element is removed and yielded. . /// If the closure returns false, the element will remain in the vector and will not be yielded . /// by the iterator. . /// -- line 2709 ---------------------------------------- -- 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, . { 1,666 ( 0.00%) let old_len = self.len(); . . // Guard against us getting leaked (leak amplification) . unsafe { . self.set_len(0); . } . 6,736 ( 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. . /// . /// [`copy_from_slice`]: slice::copy_from_slice . #[cfg(not(no_global_oom_handling))] . #[stable(feature = "extend_ref", since = "1.2.0")] . impl<'a, T: Copy + 'a, A: Allocator + 'a> Extend<&'a T> for Vec { 1,952 ( 0.00%) fn extend>(&mut self, iter: I) { . self.spec_extend(iter.into_iter()) 1,464 ( 0.00%) } . . #[inline] . fn extend_one(&mut self, &item: &'a T) { . self.push(item); . } . . #[inline] . fn extend_reserve(&mut self, additional: usize) { -- line 2783 ---------------------------------------- -- 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 { 246,475 ( 0.02%) fn drop(&mut self) { . unsafe { . // use drop for [T] . // use a raw slice to refer to the elements of the vector as weakest necessary type; . // could avoid questions of validity in certain cases 128,812 ( 0.01%) ptr::drop_in_place(ptr::slice_from_raw_parts_mut(self.as_mut_ptr(), self.len)) . } . // RawVec handles deallocation 287,948 ( 0.02%) } . } . . #[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 ---------------------------------------- 664,256 ( 0.05%) -------------------------------------------------------------------------------- -- 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: $int_ty, . ) -> &[u8] { . let mut i = 0; . . loop { 236,918 ( 0.02%) if value < 0x80 { . unsafe { 103,905 ( 0.01%) *out.get_unchecked_mut(i).as_mut_ptr() = value as u8; . } . 145,290 ( 0.01%) i += 1; . break; . } else { . unsafe { 120,092 ( 0.01%) *out.get_unchecked_mut(i).as_mut_ptr() = ((value & 0x7f) | 0x80) as u8; . } . 46,561 ( 0.00%) value >>= 7; . i += 1; . } . } . . unsafe { ::std::mem::MaybeUninit::slice_assume_init_ref(&out.get_unchecked(..i)) } . } . }; . } -- line 45 ---------------------------------------- -- line 53 ---------------------------------------- . macro_rules! impl_read_unsigned_leb128 { . ($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. 4,894,564 ( 0.40%) let byte = slice[*position]; 2,447,282 ( 0.20%) *position += 1; 2,447,282 ( 0.20%) if (byte & 0x80) == 0 { 1,642 ( 0.00%) return byte as $int_ty; . } 2,228 ( 0.00%) let mut result = (byte & 0x7F) as $int_ty; . let mut shift = 7; . loop { 1,625,019 ( 0.13%) let byte = slice[*position]; 1,065,585 ( 0.09%) *position += 1; 1,083,346 ( 0.09%) if (byte & 0x80) == 0 { 866,773 ( 0.07%) result |= (byte as $int_ty) << shift; . return result; . } else { . result |= ((byte & 0x7F) as $int_ty) << shift; . } . shift += 7; . } . } . }; -- line 80 ---------------------------------------- 1,771,151 ( 0.14%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_data_structures/src/sip128.rs -------------------------------------------------------------------------------- Ir -- line 91 ---------------------------------------- . // maximum of number bytes needed to fill an 8-byte-sized element on which . // SipHash operates. Note that for variable-sized copies which are known to be . // less than 8 bytes, this function will perform more work than necessary unless . // the compiler is able to optimize the extra work away. . #[inline] . unsafe fn copy_nonoverlapping_small(src: *const u8, dst: *mut u8, count: usize) { . debug_assert!(count <= 8); . 24,014 ( 0.00%) if count == 8 { . ptr::copy_nonoverlapping(src, dst, 8); . return; . } . . let mut i = 0; 34,036 ( 0.00%) if i + 3 < count { . ptr::copy_nonoverlapping(src.add(i), dst.add(i), 4); . i += 4; . } . 72,395 ( 0.01%) if i + 1 < count { . ptr::copy_nonoverlapping(src.add(i), dst.add(i), 2); 10,331 ( 0.00%) i += 2 . } . 34,036 ( 0.00%) if i < count { 20,281 ( 0.00%) *dst.add(i) = *src.add(i); . i += 1; . } . . debug_assert_eq!(i, count); . } . . // # Implementation . // -- line 124 ---------------------------------------- -- line 201 ---------------------------------------- . . hasher . } . . // A specialized write function for values with size <= 8. . #[inline] . fn short_write(&mut self, x: T) { . let size = mem::size_of::(); 160,483 ( 0.01%) let nbuf = self.nbuf; . debug_assert!(size <= 8); . debug_assert!(nbuf < BUFFER_SIZE); . debug_assert!(nbuf + size < BUFFER_WITH_SPILL_SIZE); . 1,067,593 ( 0.09%) if nbuf + size < BUFFER_SIZE { . unsafe { . // The memcpy call is optimized away because the size is known. . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . ptr::copy_nonoverlapping(&x as *const _ as *const u8, dst, size); . } . 325,677 ( 0.03%) self.nbuf = nbuf + size; . . return; . } . 51,833 ( 0.00%) unsafe { self.short_write_process_buffer(x) } . } . . // A specialized write function for values with size <= 8 that should only . // be called when the write would cause the buffer to fill. . // . // SAFETY: the write of `x` into `self.buf` starting at byte offset . // `self.nbuf` must cause `self.buf` to become fully initialized (and not . // overflow) if it wasn't already. . #[inline(never)] 15,663 ( 0.00%) unsafe fn short_write_process_buffer(&mut self, x: T) { . let size = mem::size_of::(); 15,663 ( 0.00%) let nbuf = self.nbuf; . debug_assert!(size <= 8); . debug_assert!(nbuf < BUFFER_SIZE); . debug_assert!(nbuf + size >= BUFFER_SIZE); . debug_assert!(nbuf + size < BUFFER_WITH_SPILL_SIZE); . . // Copy first part of input into end of buffer, possibly into spill . // element. The memcpy call is optimized away because the size is known. . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . ptr::copy_nonoverlapping(&x as *const _ as *const u8, dst, size); . . // Process buffer. . for i in 0..BUFFER_CAPACITY { 156,630 ( 0.01%) let elem = self.buf.get_unchecked(i).assume_init().to_le(); 125,304 ( 0.01%) self.state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut self.state); 140,967 ( 0.01%) self.state.v0 ^= elem; . } . . // Copy remaining input into start of buffer by copying size - 1 . // elements from spill (at most size - 1 bytes could have overflowed . // into the spill). The memcpy call is optimized away because the size . // is known. And the whole copy is optimized away for size == 1. . let src = self.buf.get_unchecked(BUFFER_SPILL_INDEX) as *const _ as *const u8; . ptr::copy_nonoverlapping(src, self.buf.as_mut_ptr() as *mut u8, size - 1); . . // This function should only be called when the write fills the buffer. . // Therefore, when size == 1, the new `self.nbuf` must be zero. The size . // is statically known, so the branch is optimized away. 73,651 ( 0.01%) self.nbuf = if size == 1 { 0 } else { nbuf + size - BUFFER_SIZE }; 62,652 ( 0.01%) self.processed += BUFFER_SIZE; 31,326 ( 0.00%) } . . // A write function for byte slices. . #[inline] . fn slice_write(&mut self, msg: &[u8]) { . let length = msg.len(); 13,508 ( 0.00%) let nbuf = self.nbuf; . debug_assert!(nbuf < BUFFER_SIZE); . 99,807 ( 0.01%) if nbuf + length < BUFFER_SIZE { . unsafe { . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . 36,564 ( 0.00%) if length <= 8 { . copy_nonoverlapping_small(msg.as_ptr(), dst, length); . } else { . // This memcpy is *not* optimized away. . ptr::copy_nonoverlapping(msg.as_ptr(), dst, length); . } . } . 18,450 ( 0.00%) self.nbuf = nbuf + length; . . return; . } . 9,562 ( 0.00%) unsafe { self.slice_write_process_buffer(msg) } . } . . // A write function for byte slices that should only be called when the . // write would cause the buffer to fill. . // . // SAFETY: `self.buf` must be initialized up to the byte offset `self.nbuf`, . // and `msg` must contain enough bytes to initialize the rest of the element . // containing the byte offset `self.nbuf`. . #[inline(never)] 7,775 ( 0.00%) unsafe fn slice_write_process_buffer(&mut self, msg: &[u8]) { . let length = msg.len(); 1,555 ( 0.00%) let nbuf = self.nbuf; . debug_assert!(nbuf < BUFFER_SIZE); . debug_assert!(nbuf + length >= BUFFER_SIZE); . . // Always copy first part of input into current element of buffer. . // This function should only be called when the write fills the buffer, . // so we know that there is enough input to fill the current element. 4,665 ( 0.00%) let valid_in_elem = nbuf % ELEM_SIZE; 1,555 ( 0.00%) let needed_in_elem = ELEM_SIZE - valid_in_elem; . . let src = msg.as_ptr(); . let dst = (self.buf.as_mut_ptr() as *mut u8).add(nbuf); . copy_nonoverlapping_small(src, dst, needed_in_elem); . . // Process buffer. . . // Using `nbuf / ELEM_SIZE + 1` rather than `(nbuf + needed_in_elem) / . // ELEM_SIZE` to show the compiler that this loop's upper bound is > 0. . // We know that is true, because last step ensured we have a full . // element in the buffer. 3,110 ( 0.00%) let last = nbuf / ELEM_SIZE + 1; . . for i in 0..last { 10,532 ( 0.00%) let elem = self.buf.get_unchecked(i).assume_init().to_le(); 12,087 ( 0.00%) self.state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut self.state); 21,064 ( 0.00%) self.state.v0 ^= elem; . } . . // Process the remaining element-sized chunks of input. . let mut processed = needed_in_elem; 3,110 ( 0.00%) let input_left = length - processed; 2,571 ( 0.00%) let elems_left = input_left / ELEM_SIZE; . let extra_bytes_left = input_left % ELEM_SIZE; . . for _ in 0..elems_left { 2,127 ( 0.00%) let elem = (msg.as_ptr().add(processed) as *const u64).read_unaligned().to_le(); 2,127 ( 0.00%) self.state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut self.state); 2,127 ( 0.00%) self.state.v0 ^= elem; 4,254 ( 0.00%) processed += ELEM_SIZE; . } . . // Copy remaining input into start of buffer. . let src = msg.as_ptr().add(processed); . let dst = self.buf.as_mut_ptr() as *mut u8; . copy_nonoverlapping_small(src, dst, extra_bytes_left); . 1,555 ( 0.00%) self.nbuf = extra_bytes_left; 7,775 ( 0.00%) self.processed += nbuf + processed; 9,330 ( 0.00%) } . . #[inline] . pub fn finish128(mut self) -> (u64, u64) { . debug_assert!(self.nbuf < BUFFER_SIZE); . . // Process full elements in buffer. 17,748 ( 0.00%) let last = self.nbuf / ELEM_SIZE; . . // Since we're consuming self, avoid updating members for a potential . // performance gain. 23,664 ( 0.00%) let mut state = self.state; . . for i in 0..last { 20,044 ( 0.00%) let elem = unsafe { self.buf.get_unchecked(i).assume_init().to_le() }; 20,044 ( 0.00%) state.v3 ^= elem; . Sip24Rounds::c_rounds(&mut state); 20,044 ( 0.00%) state.v0 ^= elem; . } . . // Get remaining partial element. 11,832 ( 0.00%) let elem = if self.nbuf % ELEM_SIZE != 0 { . unsafe { . // Ensure element is initialized by writing zero bytes. At most . // `ELEM_SIZE - 1` are required given the above check. It's safe . // to write this many because we have the spill and we maintain . // `self.nbuf` such that this write will start before the spill. . let dst = (self.buf.as_mut_ptr() as *mut u8).add(self.nbuf); . ptr::write_bytes(dst, 0, ELEM_SIZE - 1); 3,892 ( 0.00%) self.buf.get_unchecked(last).assume_init().to_le() . } . } else { . 0 . }; . . // Finalize the hash. 15,576 ( 0.00%) let length = self.processed + self.nbuf; 11,534 ( 0.00%) let b: u64 = ((length as u64 & 0xff) << 56) | elem; . 5,767 ( 0.00%) state.v3 ^= b; . Sip24Rounds::c_rounds(&mut state); 5,767 ( 0.00%) state.v0 ^= b; . 5,767 ( 0.00%) state.v2 ^= 0xee; . Sip24Rounds::d_rounds(&mut state); 19,026 ( 0.00%) let _0 = state.v0 ^ state.v1 ^ state.v2 ^ state.v3; . 7,490 ( 0.00%) state.v1 ^= 0xdd; . Sip24Rounds::d_rounds(&mut state); 7,490 ( 0.00%) let _1 = state.v0 ^ state.v1 ^ state.v2 ^ state.v3; . . (_0, _1) . } . } . . impl Hasher for SipHasher128 { . #[inline] . fn write_u8(&mut self, i: u8) { -- line 414 ---------------------------------------- -- line 471 ---------------------------------------- . } . . #[derive(Debug, Clone, Default)] . struct Sip24Rounds; . . impl Sip24Rounds { . #[inline] . fn c_rounds(state: &mut State) { 675,424 ( 0.06%) compress!(state); 733,681 ( 0.06%) compress!(state); . } . . #[inline] . fn d_rounds(state: &mut State) { 38,048 ( 0.00%) compress!(state); 38,048 ( 0.00%) compress!(state); 38,048 ( 0.00%) compress!(state); 32,282 ( 0.00%) compress!(state); . } . } 142,889 ( 0.01%) -------------------------------------------------------------------------------- -- 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) { 649,757 ( 0.05%) self.hash = self.hash.rotate_left(5).bitxor(i).wrapping_mul(K); . } . } . . impl Hasher for FxHasher { . #[inline] 4,369 ( 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()); . 102,039 ( 0.01%) let mut hash = FxHasher { hash: self.hash }; . assert!(size_of::() <= 8); 1,221,432 ( 0.10%) while bytes.len() >= size_of::() { . hash.add_to_hash(read_usize(bytes) as usize); . bytes = &bytes[size_of::()..]; . } 217,422 ( 0.02%) 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..]; . } 217,422 ( 0.02%) 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..]; . } 240,428 ( 0.02%) if (size_of::() > 1) && bytes.len() >= 1 { 50,386 ( 0.00%) hash.add_to_hash(bytes[0] as usize); . } 8,457 ( 0.00%) self.hash = hash.hash; 4,369 ( 0.00%) } . . #[inline] . fn write_u8(&mut self, i: u8) { 1,670 ( 0.00%) self.add_to_hash(i as usize); . } . . #[inline] . fn write_u16(&mut self, i: u16) { 419 ( 0.00%) self.add_to_hash(i as usize); . } . . #[inline] . fn write_u32(&mut self, i: u32) { 658,603 ( 0.05%) 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 ---------------------------------------- 4,396 ( 0.00%) -------------------------------------------------------------------------------- -- 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 . // . 1,259,874 ( 0.10%) if layout.align() <= MIN_ALIGN && layout.align() <= layout.size() { 944,904 ( 0.08%) 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. 46,420 ( 0.00%) if layout.align() <= MIN_ALIGN && layout.align() <= layout.size() { 69,630 ( 0.01%) 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) { 326,562 ( 0.03%) libc::free(ptr as *mut libc::c_void) . } . . #[inline] . unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 { 117,888 ( 0.01%) if layout.align() <= MIN_ALIGN && layout.align() <= new_size { 235,776 ( 0.02%) libc::realloc(ptr as *mut libc::c_void, new_size) as *mut u8 . } else { . realloc_fallback(self, ptr, layout, new_size) . } . } . } . . cfg_if::cfg_if! { . if #[cfg(any( -- line 56 ---------------------------------------- -- line 84 ---------------------------------------- . } else if #[cfg(target_os = "wasi")] { . #[inline] . unsafe fn aligned_malloc(layout: &Layout) -> *mut u8 { . libc::aligned_alloc(layout.align(), layout.size()) as *mut u8 . } . } else { . #[inline] . unsafe fn aligned_malloc(layout: &Layout) -> *mut u8 { 1 ( 0.00%) let mut out = ptr::null_mut(); . // posix_memalign requires that the alignment be a multiple of `sizeof(void*)`. . // Since these are all powers of 2, we can just use max. . let align = layout.align().max(crate::mem::size_of::()); 2 ( 0.00%) let ret = libc::posix_memalign(&mut out, align, layout.size()); 2 ( 0.00%) if ret != 0 { ptr::null_mut() } else { out as *mut u8 } . } . } . } 1 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/context.rs -------------------------------------------------------------------------------- Ir -- line 118 ---------------------------------------- . stability: InternedSet<'tcx, attr::Stability>, . . /// `#[rustc_const_stable]` and `#[rustc_const_unstable]` attributes . const_stability: InternedSet<'tcx, attr::ConstStability>, . } . . impl<'tcx> CtxtInterners<'tcx> { . fn new(arena: &'tcx WorkerLocal>) -> CtxtInterners<'tcx> { 17 ( 0.00%) CtxtInterners { . arena, . type_: Default::default(), . type_list: Default::default(), . substs: Default::default(), . region: Default::default(), . poly_existential_predicates: Default::default(), . canonical_var_infos: Default::default(), . predicate: Default::default(), -- line 134 ---------------------------------------- -- line 143 ---------------------------------------- . stability: Default::default(), . const_stability: Default::default(), . } . } . . /// Interns a type. . #[allow(rustc::usage_of_ty_tykind)] . #[inline(never)] 923,912 ( 0.08%) fn intern_ty(&self, kind: TyKind<'tcx>) -> Ty<'tcx> { . self.type_ 577,445 ( 0.05%) .intern(kind, |kind| { 45,240 ( 0.00%) let flags = super::flags::FlagComputation::for_kind(&kind); . . let ty_struct = TyS { 90,480 ( 0.01%) kind, . flags: flags.flags, . outer_exclusive_binder: flags.outer_exclusive_binder, . }; . . Interned(self.arena.alloc(ty_struct)) . }) . .0 1,039,401 ( 0.08%) } . . #[inline(never)] 235,256 ( 0.02%) fn intern_predicate( . &self, . kind: Binder<'tcx, PredicateKind<'tcx>>, . ) -> &'tcx PredicateInner<'tcx> { . self.predicate 205,849 ( 0.02%) .intern(kind, |kind| { 46,500 ( 0.00%) let flags = super::flags::FlagComputation::for_predicate(kind); . . let predicate_struct = PredicateInner { . kind, . flags: flags.flags, . outer_exclusive_binder: flags.outer_exclusive_binder, . }; . . Interned(self.arena.alloc(predicate_struct)) . }) . .0 264,663 ( 0.02%) } . } . . pub struct CommonTypes<'tcx> { . pub unit: Ty<'tcx>, . pub bool: Ty<'tcx>, . pub char: Ty<'tcx>, . pub isize: Ty<'tcx>, . pub i8: Ty<'tcx>, -- line 193 ---------------------------------------- -- line 237 ---------------------------------------- . /// safely used as a key in the maps of a TypeckResults. For that to be . /// the case, the HirId must have the same `owner` as all the other IDs in . /// this table (signified by `hir_owner`). Otherwise the HirId . /// would be in a different frame of reference and using its `local_id` . /// would result in lookup errors, or worse, in silently wrong data being . /// stored/returned. . #[inline] . fn validate_hir_id_for_typeck_results(hir_owner: LocalDefId, hir_id: hir::HirId) { 53,033 ( 0.00%) if hir_id.owner != hir_owner { . invalid_hir_id_for_typeck_results(hir_owner, hir_id); . } . } . . #[cold] . #[inline(never)] . fn invalid_hir_id_for_typeck_results(hir_owner: LocalDefId, hir_id: hir::HirId) { . ty::tls::with(|tcx| { -- line 253 ---------------------------------------- -- line 261 ---------------------------------------- . } . . impl<'a, V> LocalTableInContext<'a, V> { . pub fn contains_key(&self, id: hir::HirId) -> bool { . validate_hir_id_for_typeck_results(self.hir_owner, id); . self.data.contains_key(&id.local_id) . } . 38,998 ( 0.00%) pub fn get(&self, id: hir::HirId) -> Option<&V> { 7,802 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); 7,802 ( 0.00%) self.data.get(&id.local_id) 31,298 ( 0.00%) } . . pub fn iter(&self) -> hash_map::Iter<'_, hir::ItemLocalId, V> { . self.data.iter() . } . } . . impl<'a, V> ::std::ops::Index for LocalTableInContext<'a, V> { . type Output = V; . 612 ( 0.00%) fn index(&self, key: hir::HirId) -> &V { . self.get(key).expect("LocalTableInContext: key not found") 408 ( 0.00%) } . } . . pub struct LocalTableInContextMut<'a, V> { . hir_owner: LocalDefId, . data: &'a mut ItemLocalMap, . } . . impl<'a, V> LocalTableInContextMut<'a, V> { -- line 292 ---------------------------------------- -- line 328 ---------------------------------------- . /// ``` . /// . /// Here, we would store the type `T`, the span of the value `x`, the "scope-span" for . /// the scope that contains `x`, the expr `T` evaluated from, and the span of `foo.await`. . #[derive(TyEncodable, TyDecodable, Clone, Debug, Eq, Hash, PartialEq, HashStable)] . #[derive(TypeFoldable)] . pub struct GeneratorInteriorTypeCause<'tcx> { . /// Type of the captured binding. 101 ( 0.00%) pub ty: Ty<'tcx>, . /// Span of the binding that was captured. 36 ( 0.00%) pub span: Span, . /// Span of the scope of the captured binding. 170 ( 0.00%) pub scope_span: Option, . /// Span of `.await` or `yield` expression. 170 ( 0.00%) pub yield_span: Span, . /// Expr which the type evaluated from. 238 ( 0.00%) pub expr: Option, . } . . #[derive(TyEncodable, TyDecodable, Debug)] . pub struct TypeckResults<'tcx> { . /// The `HirId::owner` all `ItemLocalId`s in this table are relative to. . pub hir_owner: LocalDefId, . . /// Resolved definitions for `::X` associated paths and -- line 352 ---------------------------------------- -- line 507 ---------------------------------------- . pub treat_byte_string_as_slice: ItemLocalSet, . . /// Contains the data for evaluating the effect of feature `capture_disjoint_fields` . /// on closure size. . pub closure_size_eval: FxHashMap>, . } . . impl<'tcx> TypeckResults<'tcx> { 2,496 ( 0.00%) pub fn new(hir_owner: LocalDefId) -> TypeckResults<'tcx> { 29,536 ( 0.00%) TypeckResults { . hir_owner, . type_dependent_defs: Default::default(), . field_indices: Default::default(), . user_provided_types: Default::default(), . user_provided_sigs: Default::default(), . node_types: Default::default(), . node_substs: Default::default(), . adjustments: Default::default(), -- line 524 ---------------------------------------- -- line 532 ---------------------------------------- . tainted_by_errors: None, . concrete_opaque_types: Default::default(), . closure_min_captures: Default::default(), . closure_fake_reads: Default::default(), . generator_interior_types: ty::Binder::dummy(Default::default()), . treat_byte_string_as_slice: Default::default(), . closure_size_eval: Default::default(), . } 2,496 ( 0.00%) } . . /// Returns the final resolution of a `QPath` in an `Expr` or `Pat` node. 11,418 ( 0.00%) pub fn qpath_res(&self, qpath: &hir::QPath<'_>, id: hir::HirId) -> Res { 7,612 ( 0.00%) match *qpath { 17,436 ( 0.00%) hir::QPath::Resolved(_, ref path) => path.res, . hir::QPath::TypeRelative(..) | hir::QPath::LangItem(..) => self . .type_dependent_def(id) 5,400 ( 0.00%) .map_or(Res::Err, |(kind, def_id)| Res::Def(kind, def_id)), . } 19,030 ( 0.00%) } . 92 ( 0.00%) pub fn type_dependent_defs( . &self, . ) -> LocalTableInContext<'_, Result<(DefKind, DefId), ErrorReported>> { 502 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.type_dependent_defs } 92 ( 0.00%) } . 1,039 ( 0.00%) pub fn type_dependent_def(&self, id: HirId) -> Option<(DefKind, DefId)> { 2,324 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.type_dependent_defs.get(&id.local_id).cloned().and_then(|r| r.ok()) 2,078 ( 0.00%) } . 1,540 ( 0.00%) pub fn type_dependent_def_id(&self, id: HirId) -> Option { . self.type_dependent_def(id).map(|(_, def_id)| def_id) 1,540 ( 0.00%) } . 3,148 ( 0.00%) pub fn type_dependent_defs_mut( . &mut self, . ) -> LocalTableInContextMut<'_, Result<(DefKind, DefId), ErrorReported>> { 3,148 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.type_dependent_defs } 3,148 ( 0.00%) } . . pub fn field_indices(&self) -> LocalTableInContext<'_, usize> { 670 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.field_indices } 149 ( 0.00%) } . . pub fn field_indices_mut(&mut self) -> LocalTableInContextMut<'_, usize> { 930 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.field_indices } 465 ( 0.00%) } . . pub fn user_provided_types(&self) -> LocalTableInContext<'_, CanonicalUserType<'tcx>> { 1,656 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.user_provided_types } 828 ( 0.00%) } . . pub fn user_provided_types_mut( . &mut self, . ) -> LocalTableInContextMut<'_, CanonicalUserType<'tcx>> { 352 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.user_provided_types } 176 ( 0.00%) } . . pub fn node_types(&self) -> LocalTableInContext<'_, Ty<'tcx>> { 6,716 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.node_types } 3,358 ( 0.00%) } . . pub fn node_types_mut(&mut self) -> LocalTableInContextMut<'_, Ty<'tcx>> { 11,578 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_types } 5,789 ( 0.00%) } . 52,638 ( 0.00%) pub fn node_type(&self, id: hir::HirId) -> Ty<'tcx> { 8,773 ( 0.00%) self.node_type_opt(id).unwrap_or_else(|| { . bug!("node_type: no type for node `{}`", tls::with(|tcx| tcx.hir().node_to_string(id))) . }) 43,865 ( 0.00%) } . 12,818 ( 0.00%) pub fn node_type_opt(&self, id: hir::HirId) -> Option> { 12,818 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.node_types.get(&id.local_id).cloned() 25,636 ( 0.00%) } . . pub fn node_substs_mut(&mut self) -> LocalTableInContextMut<'_, SubstsRef<'tcx>> { 1,914 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_substs } 957 ( 0.00%) } . 3,830 ( 0.00%) pub fn node_substs(&self, id: hir::HirId) -> SubstsRef<'tcx> { 3,830 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.node_substs.get(&id.local_id).cloned().unwrap_or_else(|| InternalSubsts::empty()) 7,660 ( 0.00%) } . 2,551 ( 0.00%) pub fn node_substs_opt(&self, id: hir::HirId) -> Option> { 2,551 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, id); . self.node_substs.get(&id.local_id).cloned() 5,102 ( 0.00%) } . . // Returns the type of a pattern as a monotype. Like @expr_ty, this function . // doesn't provide type parameter substitutions. . pub fn pat_ty(&self, pat: &hir::Pat<'_>) -> Ty<'tcx> { 1,144 ( 0.00%) self.node_type(pat.hir_id) . } . . // Returns the type of an expression as a monotype. . // . // NB (1): This is the PRE-ADJUSTMENT TYPE for the expression. That is, in . // some cases, we insert `Adjustment` annotations such as auto-deref or . // auto-ref. The type returned by this function does not consider such . // adjustments. See `expr_ty_adjusted()` instead. . // . // NB (2): This type doesn't provide type parameter substitutions; e.g., if you . // ask for the type of "id" in "id(3)", it will return "fn(&isize) -> isize" . // instead of "fn(ty) -> T with T = isize". . pub fn expr_ty(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { 10,213 ( 0.00%) self.node_type(expr.hir_id) . } . . pub fn expr_ty_opt(&self, expr: &hir::Expr<'_>) -> Option> { 15,463 ( 0.00%) self.node_type_opt(expr.hir_id) . } . . pub fn adjustments(&self) -> LocalTableInContext<'_, Vec>> { 4,760 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.adjustments } 2,380 ( 0.00%) } . . pub fn adjustments_mut( . &mut self, . ) -> LocalTableInContextMut<'_, Vec>> { 7,148 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.adjustments } 3,574 ( 0.00%) } . 5,444 ( 0.00%) pub fn expr_adjustments(&self, expr: &hir::Expr<'_>) -> &[ty::adjustment::Adjustment<'tcx>] { 10,888 ( 0.00%) validate_hir_id_for_typeck_results(self.hir_owner, expr.hir_id); . self.adjustments.get(&expr.hir_id.local_id).map_or(&[], |a| &a[..]) 10,888 ( 0.00%) } . . /// Returns the type of `expr`, considering any `Adjustment` . /// entry recorded for that expression. 540 ( 0.00%) pub fn expr_ty_adjusted(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { 108 ( 0.00%) self.expr_adjustments(expr).last().map_or_else(|| self.expr_ty(expr), |adj| adj.target) 196 ( 0.00%) } . 1,210 ( 0.00%) pub fn expr_ty_adjusted_opt(&self, expr: &hir::Expr<'_>) -> Option> { 242 ( 0.00%) self.expr_adjustments(expr).last().map(|adj| adj.target).or_else(|| self.expr_ty_opt(expr)) 180 ( 0.00%) } . 410 ( 0.00%) pub fn is_method_call(&self, expr: &hir::Expr<'_>) -> bool { . // Only paths and method calls/overloaded operators have . // entries in type_dependent_defs, ignore the former here. 820 ( 0.00%) if let hir::ExprKind::Path(_) = expr.kind { . return false; . } . 900 ( 0.00%) matches!(self.type_dependent_defs().get(expr.hir_id), Some(Ok((DefKind::AssocFn, _)))) 820 ( 0.00%) } . 2,499 ( 0.00%) pub fn extract_binding_mode(&self, s: &Session, id: HirId, sp: Span) -> Option { . self.pat_binding_modes().get(id).copied().or_else(|| { . s.delay_span_bug(sp, "missing binding mode"); . None . }) 3,332 ( 0.00%) } . . pub fn pat_binding_modes(&self) -> LocalTableInContext<'_, BindingMode> { 2,179 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_binding_modes } 673 ( 0.00%) } . . pub fn pat_binding_modes_mut(&mut self) -> LocalTableInContextMut<'_, BindingMode> { 1,032 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_binding_modes } 516 ( 0.00%) } . . pub fn pat_adjustments(&self) -> LocalTableInContext<'_, Vec>> { 3,190 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_adjustments } 1,595 ( 0.00%) } . . pub fn pat_adjustments_mut(&mut self) -> LocalTableInContextMut<'_, Vec>> { 870 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_adjustments } 435 ( 0.00%) } . . /// For a given closure, returns the iterator of `ty::CapturedPlace`s that are captured . /// by the closure. 552 ( 0.00%) pub fn closure_min_captures_flattened( . &self, . closure_def_id: DefId, . ) -> impl Iterator> { . self.closure_min_captures . .get(&closure_def_id) . .map(|closure_min_captures| closure_min_captures.values().flat_map(|v| v.iter())) . .into_iter() . .flatten() 690 ( 0.00%) } . . pub fn closure_kind_origins(&self) -> LocalTableInContext<'_, (Span, HirPlace<'tcx>)> { 190 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.closure_kind_origins } 95 ( 0.00%) } . . pub fn closure_kind_origins_mut( . &mut self, . ) -> LocalTableInContextMut<'_, (Span, HirPlace<'tcx>)> { . LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.closure_kind_origins } . } . . pub fn liberated_fn_sigs(&self) -> LocalTableInContext<'_, ty::FnSig<'tcx>> { 598 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.liberated_fn_sigs } 299 ( 0.00%) } . . pub fn liberated_fn_sigs_mut(&mut self) -> LocalTableInContextMut<'_, ty::FnSig<'tcx>> { 408 ( 0.00%) LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.liberated_fn_sigs } 204 ( 0.00%) } . . pub fn fru_field_types(&self) -> LocalTableInContext<'_, Vec>> { 190 ( 0.00%) LocalTableInContext { hir_owner: self.hir_owner, data: &self.fru_field_types } 95 ( 0.00%) } . . pub fn fru_field_types_mut(&mut self) -> LocalTableInContextMut<'_, Vec>> { . LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.fru_field_types } . } . . pub fn is_coercion_cast(&self, hir_id: hir::HirId) -> bool { . validate_hir_id_for_typeck_results(self.hir_owner, hir_id); . self.coercion_casts.contains(&hir_id.local_id) . } . . pub fn set_coercion_cast(&mut self, id: ItemLocalId) { . self.coercion_casts.insert(id); . } . . pub fn coercion_casts(&self) -> &ItemLocalSet { 95 ( 0.00%) &self.coercion_casts 95 ( 0.00%) } . } . . impl<'a, 'tcx> HashStable> for TypeckResults<'tcx> { . fn hash_stable(&self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher) { . let ty::TypeckResults { . hir_owner, . ref type_dependent_defs, . ref field_indices, -- line 764 ---------------------------------------- -- line 819 ---------------------------------------- . const START_INDEX = 0, . } . } . . /// Mapping of type annotation indices to canonical user type annotations. . pub type CanonicalUserTypeAnnotations<'tcx> = . IndexVec>; . 46 ( 0.00%) #[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, Lift)] . pub struct CanonicalUserTypeAnnotation<'tcx> { . pub user_ty: CanonicalUserType<'tcx>, . pub span: Span, 91 ( 0.00%) pub inferred_ty: Ty<'tcx>, . } . . /// Canonicalized user type annotation. . pub type CanonicalUserType<'tcx> = Canonical<'tcx, UserType<'tcx>>; . . impl<'tcx> CanonicalUserType<'tcx> { . /// Returns `true` if this represents a substitution of the form `[?0, ?1, ?2]`, . /// i.e., each thing is mapped to a canonical variable with the same index. 389 ( 0.00%) pub fn is_identity(&self) -> bool { 778 ( 0.00%) match self.value { . UserType::Ty(_) => false, . UserType::TypeOf(_, user_substs) => { 389 ( 0.00%) if user_substs.user_self_ty.is_some() { . return false; . } . . iter::zip(user_substs.substs, BoundVar::new(0)..).all(|(kind, cvar)| { . match kind.unpack() { 852 ( 0.00%) GenericArgKind::Type(ty) => match ty.kind() { . ty::Bound(debruijn, b) => { . // We only allow a `ty::INNERMOST` index in substitutions. 417 ( 0.00%) assert_eq!(*debruijn, ty::INNERMOST); . cvar == b.var . } . _ => false, . }, . 18 ( 0.00%) GenericArgKind::Lifetime(r) => match r { . ty::ReLateBound(debruijn, br) => { . // We only allow a `ty::INNERMOST` index in substitutions. . assert_eq!(*debruijn, ty::INNERMOST); . cvar == br.var . } . _ => false, . }, . -- line 867 ---------------------------------------- -- line 872 ---------------------------------------- . cvar == b . } . _ => false, . }, . } . }) . } . } 778 ( 0.00%) } . } . . /// A user-given type annotation attached to a constant. These arise . /// from constants that are named via paths, like `Foo::::new` and . /// so forth. 546 ( 0.00%) #[derive(Copy, Clone, Debug, PartialEq, TyEncodable, TyDecodable)] 4,401 ( 0.00%) #[derive(HashStable, TypeFoldable, Lift)] . pub enum UserType<'tcx> { . Ty(Ty<'tcx>), . . /// The canonical type is the result of `type_of(def_id)` with the . /// given substitutions applied. . TypeOf(DefId, UserSubsts<'tcx>), . } . . impl<'tcx> CommonTypes<'tcx> { . fn new(interners: &CtxtInterners<'tcx>) -> CommonTypes<'tcx> { 111 ( 0.00%) let mk = |ty| interners.intern_ty(ty); . . CommonTypes { . unit: mk(Tuple(List::empty())), . bool: mk(Bool), . char: mk(Char), . never: mk(Never), . isize: mk(Int(ty::IntTy::Isize)), . i8: mk(Int(ty::IntTy::I8)), -- line 906 ---------------------------------------- -- line 921 ---------------------------------------- . . trait_object_dummy_self: mk(Infer(ty::FreshTy(0))), . } . } . } . . impl<'tcx> CommonLifetimes<'tcx> { . fn new(interners: &CtxtInterners<'tcx>) -> CommonLifetimes<'tcx> { 67 ( 0.00%) let mk = |r| interners.region.intern(r, |r| Interned(interners.arena.alloc(r))).0; . . CommonLifetimes { 5 ( 0.00%) re_root_empty: mk(RegionKind::ReEmpty(ty::UniverseIndex::ROOT)), 5 ( 0.00%) re_static: mk(RegionKind::ReStatic), 5 ( 0.00%) re_erased: mk(RegionKind::ReErased), . } . } . } . . impl<'tcx> CommonConsts<'tcx> { . fn new(interners: &CtxtInterners<'tcx>, types: &CommonTypes<'tcx>) -> CommonConsts<'tcx> { 6 ( 0.00%) let mk_const = |c| interners.const_.intern(c, |c| Interned(interners.arena.alloc(c))).0; . . CommonConsts { . unit: mk_const(ty::Const { . val: ty::ConstKind::Value(ConstValue::Scalar(Scalar::ZST)), . ty: types.unit, . }), . } . } -- line 949 ---------------------------------------- -- line 1045 ---------------------------------------- . . /// Stores memory for globals (statics/consts). . pub(crate) alloc_map: Lock>, . . output_filenames: Arc, . } . . impl<'tcx> TyCtxt<'tcx> { 4,200 ( 0.00%) pub fn typeck_opt_const_arg( . self, . def: ty::WithOptConstParam, . ) -> &'tcx TypeckResults<'tcx> { 1,680 ( 0.00%) if let Some(param_did) = def.const_param_did { . self.typeck_const_arg((def.did, param_did)) . } else { . self.typeck(def.did) . } 3,360 ( 0.00%) } . 306 ( 0.00%) pub fn alloc_steal_thir(self, thir: Thir<'tcx>) -> &'tcx Steal> { 102 ( 0.00%) self.arena.alloc(Steal::new(thir)) 408 ( 0.00%) } . 2,040 ( 0.00%) pub fn alloc_steal_mir(self, mir: Body<'tcx>) -> &'tcx Steal> { 408 ( 0.00%) self.arena.alloc(Steal::new(mir)) 2,856 ( 0.00%) } . 408 ( 0.00%) pub fn alloc_steal_promoted( . self, . promoted: IndexVec>, . ) -> &'tcx Steal>> { 102 ( 0.00%) self.arena.alloc(Steal::new(promoted)) 510 ( 0.00%) } . 2,286 ( 0.00%) pub fn alloc_adt_def( . self, . did: DefId, . kind: AdtKind, . variants: IndexVec, . repr: ReprOptions, . ) -> &'tcx ty::AdtDef { 4,064 ( 0.00%) self.intern_adt_def(ty::AdtDef::new(self, did, kind, variants, repr)) 1,016 ( 0.00%) } . . /// Allocates a read-only byte or string literal for `mir::interpret`. . pub fn allocate_bytes(self, bytes: &[u8]) -> interpret::AllocId { . // Create an allocation that just contains these bytes. . let alloc = interpret::Allocation::from_bytes_byte_aligned_immutable(bytes); . let alloc = self.intern_const_alloc(alloc); . self.create_memory_alloc(alloc) . } . . /// Returns a range of the start/end indices specified with the . /// `rustc_layout_scalar_valid_range` attribute. . // FIXME(eddyb) this is an awkward spot for this method, maybe move it? 5,808 ( 0.00%) pub fn layout_scalar_valid_range(self, def_id: DefId) -> (Bound, Bound) { 2,904 ( 0.00%) let attrs = self.get_attrs(def_id); 12,342 ( 0.00%) let get = |name| { 2,904 ( 0.00%) let attr = match attrs.iter().find(|a| a.has_name(name)) { . Some(attr) => attr, . None => return Bound::Unbounded, . }; . debug!("layout_scalar_valid_range: attr={:?}", attr); 360 ( 0.00%) if let Some( . &[ . ast::NestedMetaItem::Literal(ast::Lit { 180 ( 0.00%) kind: ast::LitKind::Int(a, _), .. . }), . ], 90 ( 0.00%) ) = attr.meta_item_list().as_deref() . { . Bound::Included(a) . } else { . self.sess . .delay_span_bug(attr.span, "invalid rustc_layout_scalar_valid_range attribute"); . Bound::Unbounded . } 14,520 ( 0.00%) }; 4,356 ( 0.00%) ( 4,356 ( 0.00%) get(sym::rustc_layout_scalar_valid_range_start), 2,178 ( 0.00%) get(sym::rustc_layout_scalar_valid_range_end), . ) 5,808 ( 0.00%) } . . pub fn lift>(self, value: T) -> Option { . value.lift_to_tcx(self) . } . . /// Creates a type context and call the closure with a `TyCtxt` reference . /// to the context. The closure enforces that the type context and any interned . /// value (types, substs, etc.) can only be used while `ty::tls` has a valid . /// reference to the context, to allow formatting values that need it. 23 ( 0.00%) pub fn create_global_ctxt( . s: &'tcx Session, . lint_store: Lrc, . arena: &'tcx WorkerLocal>, . resolutions: ty::ResolverOutputs, . krate: &'tcx hir::Crate<'tcx>, . dep_graph: DepGraph, . on_disk_cache: Option<&'tcx dyn OnDiskCache<'tcx>>, . queries: &'tcx dyn query::QueryEngine<'tcx>, . query_kinds: &'tcx [DepKindStruct], . crate_name: &str, . output_filenames: OutputFilenames, . ) -> GlobalCtxt<'tcx> { 1 ( 0.00%) let data_layout = TargetDataLayout::parse(&s.target).unwrap_or_else(|err| { . s.fatal(&err); . }); . let interners = CtxtInterners::new(arena); . let common_types = CommonTypes::new(&interners); . let common_lifetimes = CommonLifetimes::new(&interners); . let common_consts = CommonConsts::new(&interners, &common_types); . 127 ( 0.00%) GlobalCtxt { . sess: s, 6 ( 0.00%) lint_store, . arena, 2 ( 0.00%) interners, 5 ( 0.00%) dep_graph, 4 ( 0.00%) untracked_resolutions: resolutions, 2 ( 0.00%) prof: s.prof.clone(), . types: common_types, . lifetimes: common_lifetimes, . consts: common_consts, . untracked_crate: krate, . on_disk_cache, . queries, . query_caches: query::QueryCaches::default(), . query_kinds, . ty_rcache: Default::default(), . pred_rcache: Default::default(), . selection_cache: Default::default(), . evaluation_cache: Default::default(), 1 ( 0.00%) crate_name: Symbol::intern(crate_name), . data_layout, . alloc_map: Lock::new(interpret::AllocMap::new()), . output_filenames: Arc::new(output_filenames), . } 9 ( 0.00%) } . . crate fn query_kind(self, k: DepKind) -> &'tcx DepKindStruct { . &self.query_kinds[k as usize] . } . . /// Constructs a `TyKind::Error` type and registers a `delay_span_bug` to ensure it gets used. . #[track_caller] . pub fn ty_error(self) -> Ty<'tcx> { -- line 1191 ---------------------------------------- -- line 1217 ---------------------------------------- . ty: Ty<'tcx>, . span: S, . msg: &str, . ) -> &'tcx Const<'tcx> { . self.sess.delay_span_bug(span, msg); . self.mk_const(ty::Const { val: ty::ConstKind::Error(DelaySpanBugEmitted(())), ty }) . } . 4,018 ( 0.00%) pub fn consider_optimizing String>(self, msg: T) -> bool { 574 ( 0.00%) let cname = self.crate_name(LOCAL_CRATE); 4,263 ( 0.00%) self.sess.consider_optimizing(cname.as_str(), msg) 4,592 ( 0.00%) } . . /// Obtain all lang items of this crate and all dependencies (recursively) 246,190 ( 0.02%) pub fn lang_items(self) -> &'tcx rustc_hir::lang_items::LanguageItems { . self.get_lang_items(()) 316,530 ( 0.03%) } . . /// Obtain the given diagnostic item's `DefId`. Use `is_diagnostic_item` if you just want to . /// compare against another `DefId`, since `is_diagnostic_item` is cheaper. 105 ( 0.00%) pub fn get_diagnostic_item(self, name: Symbol) -> Option { . self.all_diagnostic_items(()).name_to_id.get(&name).copied() 120 ( 0.00%) } . . /// Obtain the diagnostic item's name 5,880 ( 0.00%) pub fn get_diagnostic_name(self, id: DefId) -> Option { . self.diagnostic_items(id.krate).id_to_name.get(&id).copied() 6,720 ( 0.00%) } . . /// Check whether the diagnostic item with the given `name` has the given `DefId`. 6,118 ( 0.00%) pub fn is_diagnostic_item(self, name: Symbol, did: DefId) -> bool { . self.diagnostic_items(did.krate).name_to_id.get(&name) == Some(&did) 6,992 ( 0.00%) } . 2,660 ( 0.00%) pub fn stability(self) -> &'tcx stability::Index<'tcx> { . self.stability_index(()) 3,420 ( 0.00%) } . 69,937 ( 0.01%) pub fn features(self) -> &'tcx rustc_feature::Features { . self.features_query(()) 79,928 ( 0.01%) } . 7,953 ( 0.00%) pub fn def_key(self, id: DefId) -> rustc_hir::definitions::DefKey { . // Accessing the DefKey is ok, since it is part of DefPathHash. 40,809 ( 0.00%) if let Some(id) = id.as_local() { . self.untracked_resolutions.definitions.def_key(id) . } else { 67,135 ( 0.01%) self.untracked_resolutions.cstore.def_key(id) . } 546 ( 0.00%) } . . /// Converts a `DefId` into its fully expanded `DefPath` (every . /// `DefId` is really just an interned `DefPath`). . /// . /// Note that if `id` is not local to this crate, the result will . /// be a non-local `DefPath`. 54 ( 0.00%) pub fn def_path(self, id: DefId) -> rustc_hir::definitions::DefPath { . // Accessing the DefPath is ok, since it is part of DefPathHash. 81 ( 0.00%) if let Some(id) = id.as_local() { 12 ( 0.00%) self.untracked_resolutions.definitions.def_path(id) . } else { 115 ( 0.00%) self.untracked_resolutions.cstore.def_path(id) . } 81 ( 0.00%) } . . #[inline] . pub fn def_path_hash(self, def_id: DefId) -> rustc_hir::definitions::DefPathHash { . // Accessing the DefPathHash is ok, it is incr. comp. stable. 1,567 ( 0.00%) if let Some(def_id) = def_id.as_local() { . self.untracked_resolutions.definitions.def_path_hash(def_id) . } else { 1,255 ( 0.00%) self.untracked_resolutions.cstore.def_path_hash(def_id) . } . } . . #[inline] . pub fn stable_crate_id(self, crate_num: CrateNum) -> StableCrateId { . if crate_num == LOCAL_CRATE { . self.sess.local_stable_crate_id() . } else { -- line 1296 ---------------------------------------- -- line 1353 ---------------------------------------- . &(format!("{:08x}", stable_crate_id.to_u64()))[..4], . self.def_path(def_id).to_string_no_crate_verbose() . ) . } . . /// Note that this is *untracked* and should only be used within the query . /// system if the result is otherwise tracked through queries . pub fn cstore_untracked(self) -> &'tcx ty::CrateStoreDyn { 73,320 ( 0.01%) &*self.untracked_resolutions.cstore 36,660 ( 0.00%) } . . /// Note that this is *untracked* and should only be used within the query . /// system if the result is otherwise tracked through queries . pub fn definitions_untracked(self) -> &'tcx hir::definitions::Definitions { . &self.untracked_resolutions.definitions . } . . #[inline(always)] . pub fn create_stable_hashing_context(self) -> StableHashingContext<'tcx> { 1,486 ( 0.00%) let resolutions = &self.gcx.untracked_resolutions; 5,944 ( 0.00%) StableHashingContext::new(self.sess, &resolutions.definitions, &*resolutions.cstore) . } . . #[inline(always)] . pub fn create_no_span_stable_hashing_context(self) -> StableHashingContext<'tcx> { . let resolutions = &self.gcx.untracked_resolutions; . StableHashingContext::ignore_spans( . self.sess, . &resolutions.definitions, -- line 1381 ---------------------------------------- -- line 1390 ---------------------------------------- . /// If `true`, we should use the MIR-based borrowck, but also . /// fall back on the AST borrowck if the MIR-based one errors. . pub fn migrate_borrowck(self) -> bool { . self.borrowck_mode().migrate() . } . . /// What mode(s) of borrowck should we run? AST? MIR? both? . /// (Also considers the `#![feature(nll)]` setting.) 190 ( 0.00%) pub fn borrowck_mode(self) -> BorrowckMode { . // Here are the main constraints we need to deal with: . // . // 1. An opts.borrowck_mode of `BorrowckMode::Migrate` is . // synonymous with no `-Z borrowck=...` flag at all. . // . // 2. We want to allow developers on the Nightly channel . // to opt back into the "hard error" mode for NLL, . // (which they can do via specifying `#![feature(nll)]` -- line 1406 ---------------------------------------- -- line 1413 ---------------------------------------- . // errors. (To simplify the code here, it now even overrides . // a user's attempt to specify `-Z borrowck=compare`, which . // we arguably do not need anymore and should remove.) . // . // * Otherwise, if no `-Z borrowck=...` then use migrate mode . // . // * Otherwise, use the behavior requested via `-Z borrowck=...` . 285 ( 0.00%) if self.features().nll { . return BorrowckMode::Mir; . } . 95 ( 0.00%) self.sess.opts.borrowck_mode 380 ( 0.00%) } . . /// If `true`, we should use lazy normalization for constants, otherwise . /// we still evaluate them eagerly. . #[inline] . pub fn lazy_normalization(self) -> bool { . let features = self.features(); . // Note: We only use lazy normalization for generic const expressions. . features.generic_const_exprs . } . . #[inline] . pub fn local_crate_exports_generics(self) -> bool { . debug_assert!(self.sess.opts.share_generics()); . 146 ( 0.00%) self.sess.crate_types().iter().any(|crate_type| { 248 ( 0.00%) match crate_type { . CrateType::Executable . | CrateType::Staticlib . | CrateType::ProcMacro . | CrateType::Cdylib => false, . . // FIXME rust-lang/rust#64319, rust-lang/rust#64872: . // We want to block export of generics from dylibs, . // but we must fix rust-lang/rust#65890 before we can -- line 1450 ---------------------------------------- -- line 1540 ---------------------------------------- . // FIXME(#42706) -- in some cases, we could do better here. . return true; . } . false . } . . /// Determines whether identifiers in the assembly have strict naming rules. . /// Currently, only NVPTX* targets need it. 588 ( 0.00%) pub fn has_strict_asm_symbol_naming(self) -> bool { 588 ( 0.00%) self.sess.target.arch.contains("nvptx") 1,176 ( 0.00%) } . . /// Returns `&'static core::panic::Location<'static>`. 108 ( 0.00%) pub fn caller_location_ty(self) -> Ty<'tcx> { . self.mk_imm_ref( 18 ( 0.00%) self.lifetimes.re_static, . self.type_of(self.require_lang_item(LangItem::PanicLocation, None)) 36 ( 0.00%) .subst(self, self.mk_substs([self.lifetimes.re_static.into()].iter())), . ) 108 ( 0.00%) } . . /// Returns a displayable description and article for the given `def_id` (e.g. `("a", "struct")`). 748 ( 0.00%) pub fn article_and_description(self, def_id: DefId) -> (&'static str, &'static str) { 544 ( 0.00%) match self.def_kind(def_id) { . DefKind::Generator => match self.generator_kind(def_id).unwrap() { . rustc_hir::GeneratorKind::Async(..) => ("an", "async closure"), . rustc_hir::GeneratorKind::Gen => ("a", "generator"), . }, 1,224 ( 0.00%) def_kind => (def_kind.article(), def_kind.descr(def_id)), . } 612 ( 0.00%) } . 2,912 ( 0.00%) pub fn type_length_limit(self) -> Limit { . self.limits(()).type_length_limit 3,328 ( 0.00%) } . 119,161 ( 0.01%) pub fn recursion_limit(self) -> Limit { . self.limits(()).recursion_limit 136,184 ( 0.01%) } . 6,251 ( 0.00%) pub fn move_size_limit(self) -> Limit { . self.limits(()).move_size_limit 7,144 ( 0.00%) } . 504 ( 0.00%) pub fn const_eval_limit(self) -> Limit { . self.limits(()).const_eval_limit 576 ( 0.00%) } . . pub fn all_traits(self) -> impl Iterator + 'tcx { . iter::once(LOCAL_CRATE) . .chain(self.crates(()).iter().copied()) . .flat_map(move |cnum| self.traits_in_crate(cnum).iter().copied()) . } . } . -- line 1594 ---------------------------------------- -- line 1614 ---------------------------------------- . fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option; . } . . macro_rules! nop_lift { . ($set:ident; $ty:ty => $lifted:ty) => { . impl<'a, 'tcx> Lift<'tcx> for $ty { . type Lifted = $lifted; . fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option { 724 ( 0.00%) if tcx.interners.$set.contains_pointer_to(&Interned(self)) { . Some(unsafe { mem::transmute(self) }) . } else { . None . } . } . } . }; . } -- line 1630 ---------------------------------------- -- line 1684 ---------------------------------------- . /// This is the implicit state of rustc. It contains the current . /// `TyCtxt` and query. It is updated when creating a local interner or . /// executing a new query. Whenever there's a `TyCtxt` value available . /// you should also have access to an `ImplicitCtxt` through the functions . /// in this module. . #[derive(Clone)] . pub struct ImplicitCtxt<'a, 'tcx> { . /// The current `TyCtxt`. 2 ( 0.00%) pub tcx: TyCtxt<'tcx>, . . /// The current query job, if any. This is updated by `JobOwner::start` in . /// `ty::query::plumbing` when executing a query. . pub query: Option>, . . /// Where to store diagnostics for the current query job, if any. . /// This is updated by `JobOwner::start` in `ty::query::plumbing` when executing a query. . pub diagnostics: Option<&'a Lock>>, -- line 1700 ---------------------------------------- -- line 1703 ---------------------------------------- . pub layout_depth: usize, . . /// The current dep graph task. This is used to add dependencies to queries . /// when executing them. . pub task_deps: TaskDepsRef<'a>, . } . . impl<'a, 'tcx> ImplicitCtxt<'a, 'tcx> { 5 ( 0.00%) pub fn new(gcx: &'tcx GlobalCtxt<'tcx>) -> Self { . let tcx = TyCtxt { gcx }; 25 ( 0.00%) ImplicitCtxt { . tcx, . query: None, . diagnostics: None, . layout_depth: 0, . task_deps: TaskDepsRef::Ignore, . } 5 ( 0.00%) } . } . . /// Sets Rayon's thread-local variable, which is preserved for Rayon jobs . /// to `value` during the call to `f`. It is restored to its previous value after. . /// This is used to set the pointer to the new `ImplicitCtxt`. . #[cfg(parallel_compiler)] . #[inline] . fn set_tlv R, R>(value: usize, f: F) -> R { -- line 1728 ---------------------------------------- -- line 1745 ---------------------------------------- . . /// Sets TLV to `value` during the call to `f`. . /// It is restored to its previous value after. . /// This is used to set the pointer to the new `ImplicitCtxt`. . #[cfg(not(parallel_compiler))] . #[inline] . fn set_tlv R, R>(value: usize, f: F) -> R { . let old = get_tlv(); 57,686 ( 0.00%) let _reset = rustc_data_structures::OnDrop(move || TLV.with(|tlv| tlv.set(old))); . TLV.with(|tlv| tlv.set(value)); . f() . } . . /// Gets the pointer to the current `ImplicitCtxt`. . #[cfg(not(parallel_compiler))] . #[inline] . fn get_tlv() -> usize { -- line 1761 ---------------------------------------- -- line 1763 ---------------------------------------- . } . . /// Sets `context` as the new current `ImplicitCtxt` for the duration of the function `f`. . #[inline] . pub fn enter_context<'a, 'tcx, F, R>(context: &ImplicitCtxt<'a, 'tcx>, f: F) -> R . where . F: FnOnce(&ImplicitCtxt<'a, 'tcx>) -> R, . { 1 ( 0.00%) set_tlv(context as *const _ as usize, || f(&context)) . } . . /// Allows access to the current `ImplicitCtxt` in a closure if one is available. . #[inline] . pub fn with_context_opt(f: F) -> R . where . F: for<'a, 'tcx> FnOnce(Option<&ImplicitCtxt<'a, 'tcx>>) -> R, . { . let context = get_tlv(); 248,151 ( 0.02%) if context == 0 { . f(None) . } else { . // We could get an `ImplicitCtxt` pointer from another thread. . // Ensure that `ImplicitCtxt` is `Sync`. . sync::assert_sync::>(); . . unsafe { f(Some(&*(context as *const ImplicitCtxt<'_, '_>))) } . } -- line 1789 ---------------------------------------- -- line 1791 ---------------------------------------- . . /// Allows access to the current `ImplicitCtxt`. . /// Panics if there is no `ImplicitCtxt` available. . #[inline] . pub fn with_context(f: F) -> R . where . F: for<'a, 'tcx> FnOnce(&ImplicitCtxt<'a, 'tcx>) -> R, . { 273 ( 0.00%) with_context_opt(|opt_context| f(opt_context.expect("no ImplicitCtxt stored in tls"))) . } . . /// Allows access to the current `ImplicitCtxt` whose tcx field is the same as the tcx argument . /// passed in. This means the closure is given an `ImplicitCtxt` with the same `'tcx` lifetime . /// as the `TyCtxt` passed in. . /// This will panic if you pass it a `TyCtxt` which is different from the current . /// `ImplicitCtxt`'s `tcx` field. . #[inline] . pub fn with_related_context<'tcx, F, R>(tcx: TyCtxt<'tcx>, f: F) -> R . where . F: FnOnce(&ImplicitCtxt<'_, 'tcx>) -> R, . { . with_context(|context| unsafe { 122,007 ( 0.01%) assert!(ptr_eq(context.tcx.gcx, tcx.gcx)); . let context: &ImplicitCtxt<'_, '_> = mem::transmute(context); 120,782 ( 0.01%) f(context) . }) . } . . /// Allows access to the `TyCtxt` in the current `ImplicitCtxt`. . /// Panics if there is no `ImplicitCtxt` available. . #[inline] . pub fn with(f: F) -> R . where -- line 1823 ---------------------------------------- -- line 1981 ---------------------------------------- . fn into_pointer(&self) -> *const () { . self.0 as *const _ as *const () . } . } . . #[allow(rustc::usage_of_ty_tykind)] . impl<'tcx> Borrow> for Interned<'tcx, TyS<'tcx>> { . fn borrow<'a>(&'a self) -> &'a TyKind<'tcx> { 96,144 ( 0.01%) &self.0.kind() . } . } . . impl<'tcx> PartialEq for Interned<'tcx, TyS<'tcx>> { . fn eq(&self, other: &Interned<'tcx, TyS<'tcx>>) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` equals . // `x == y`. . self.0.kind() == other.0.kind() -- line 1997 ---------------------------------------- -- line 1998 ---------------------------------------- . } . } . . impl<'tcx> Eq for Interned<'tcx, TyS<'tcx>> {} . . impl<'tcx> Hash for Interned<'tcx, TyS<'tcx>> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`. 86,728 ( 0.01%) self.0.kind().hash(s) . } . } . . impl<'tcx> Borrow>> for Interned<'tcx, PredicateInner<'tcx>> { . fn borrow<'a>(&'a self) -> &'a Binder<'tcx, PredicateKind<'tcx>> { 22,660 ( 0.00%) &self.0.kind . } . } . . impl<'tcx> PartialEq for Interned<'tcx, PredicateInner<'tcx>> { . fn eq(&self, other: &Interned<'tcx, PredicateInner<'tcx>>) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` equals . // `x == y`. . self.0.kind == other.0.kind -- line 2020 ---------------------------------------- -- line 2021 ---------------------------------------- . } . } . . impl<'tcx> Eq for Interned<'tcx, PredicateInner<'tcx>> {} . . impl<'tcx> Hash for Interned<'tcx, PredicateInner<'tcx>> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`. 14,332 ( 0.00%) self.0.kind.hash(s) . } . } . . impl<'tcx, T> Borrow<[T]> for Interned<'tcx, List> { . fn borrow<'a>(&'a self) -> &'a [T] { 119,250 ( 0.01%) &self.0[..] . } . } . . impl<'tcx, T: PartialEq> PartialEq for Interned<'tcx, List> { . fn eq(&self, other: &Interned<'tcx, List>) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` equals . // `x == y`. . self.0[..] == other.0[..] -- line 2043 ---------------------------------------- -- line 2044 ---------------------------------------- . } . } . . impl<'tcx, T: Eq> Eq for Interned<'tcx, List> {} . . impl<'tcx, T: Hash> Hash for Interned<'tcx, List> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == x.hash(s)`. 33,236 ( 0.00%) self.0[..].hash(s) . } . } . . macro_rules! direct_interners { . ($($name:ident: $method:ident($ty:ty),)+) => { . $(impl<'tcx> Borrow<$ty> for Interned<'tcx, $ty> { . fn borrow<'a>(&'a self) -> &'a $ty { 28,760 ( 0.00%) &self.0 . } . } . . impl<'tcx> PartialEq for Interned<'tcx, $ty> { . fn eq(&self, other: &Self) -> bool { . // The `Borrow` trait requires that `x.borrow() == y.borrow()` . // equals `x == y`. . self.0 == other.0 -- line 2068 ---------------------------------------- -- line 2070 ---------------------------------------- . } . . impl<'tcx> Eq for Interned<'tcx, $ty> {} . . impl<'tcx> Hash for Interned<'tcx, $ty> { . fn hash(&self, s: &mut H) { . // The `Borrow` trait requires that `x.borrow().hash(s) == . // x.hash(s)`. 15,984 ( 0.00%) self.0.hash(s) . } . } . . impl<'tcx> TyCtxt<'tcx> { 261,731 ( 0.02%) pub fn $method(self, v: $ty) -> &'tcx $ty { 134,617 ( 0.01%) self.interners.$name.intern(v, |v| { 4,218 ( 0.00%) Interned(self.interners.arena.alloc(v)) . }).0 292,752 ( 0.02%) } . })+ . } . } . . direct_interners! { . region: mk_region(RegionKind), . const_: mk_const(Const<'tcx>), . const_allocation: intern_const_alloc(Allocation), -- line 2095 ---------------------------------------- -- line 2097 ---------------------------------------- . adt_def: intern_adt_def(AdtDef), . stability: intern_stability(attr::Stability), . const_stability: intern_const_stability(attr::ConstStability), . } . . macro_rules! slice_interners { . ($($field:ident: $method:ident($ty:ty)),+ $(,)?) => ( . impl<'tcx> TyCtxt<'tcx> { 1,441,603 ( 0.12%) $(pub fn $method(self, v: &[$ty]) -> &'tcx List<$ty> { . self.interners.$field.intern_ref(v, || { . Interned(List::from_arena(&*self.arena, v)) . }).0 1,290,528 ( 0.11%) })+ . } . ); . } . . slice_interners!( . type_list: _intern_type_list(Ty<'tcx>), . substs: _intern_substs(GenericArg<'tcx>), . canonical_var_infos: _intern_canonical_var_infos(CanonicalVarInfo<'tcx>), -- line 2117 ---------------------------------------- -- line 2188 ---------------------------------------- . self.mk_fn_sig(params_iter, s.output(), s.c_variadic, unsafety, abi::Abi::Rust) . }) . } . . /// Same a `self.mk_region(kind)`, but avoids accessing the interners if . /// `*r == kind`. . #[inline] . pub fn reuse_or_mk_region(self, r: Region<'tcx>, kind: RegionKind) -> Region<'tcx> { 25,240 ( 0.00%) if *r == kind { r } else { self.mk_region(kind) } . } . . #[allow(rustc::usage_of_ty_tykind)] . #[inline] . pub fn mk_ty(self, st: TyKind<'tcx>) -> Ty<'tcx> { 834,371 ( 0.07%) self.interners.intern_ty(st) . } . . #[inline] . pub fn mk_predicate(self, binder: Binder<'tcx, PredicateKind<'tcx>>) -> Predicate<'tcx> { 317,292 ( 0.03%) let inner = self.interners.intern_predicate(binder); . Predicate { inner } . } . . #[inline] 471,264 ( 0.04%) pub fn reuse_or_mk_predicate( . self, . pred: Predicate<'tcx>, . binder: Binder<'tcx, PredicateKind<'tcx>>, . ) -> Predicate<'tcx> { 40,213 ( 0.00%) if pred.kind() != binder { self.mk_predicate(binder) } else { pred } 471,264 ( 0.04%) } . . pub fn mk_mach_int(self, tm: IntTy) -> Ty<'tcx> { . match tm { . IntTy::Isize => self.types.isize, . IntTy::I8 => self.types.i8, . IntTy::I16 => self.types.i16, . IntTy::I32 => self.types.i32, . IntTy::I64 => self.types.i64, . IntTy::I128 => self.types.i128, . } . } . . pub fn mk_mach_uint(self, tm: UintTy) -> Ty<'tcx> { 53 ( 0.00%) match tm { . UintTy::Usize => self.types.usize, . UintTy::U8 => self.types.u8, . UintTy::U16 => self.types.u16, . UintTy::U32 => self.types.u32, . UintTy::U64 => self.types.u64, . UintTy::U128 => self.types.u128, . } 53 ( 0.00%) } . . pub fn mk_mach_float(self, tm: FloatTy) -> Ty<'tcx> { . match tm { . FloatTy::F32 => self.types.f32, . FloatTy::F64 => self.types.f64, . } . } . . #[inline] . pub fn mk_static_str(self) -> Ty<'tcx> { 146 ( 0.00%) self.mk_imm_ref(self.lifetimes.re_static, self.types.str_) . } . . #[inline] . pub fn mk_adt(self, def: &'tcx AdtDef, substs: SubstsRef<'tcx>) -> Ty<'tcx> { . // Take a copy of substs so that we own the vectors inside. . self.mk_ty(Adt(def, substs)) . } . . #[inline] . pub fn mk_foreign(self, def_id: DefId) -> Ty<'tcx> { . self.mk_ty(Foreign(def_id)) . } . 208 ( 0.00%) fn mk_generic_adt(self, wrapper_def_id: DefId, ty_param: Ty<'tcx>) -> Ty<'tcx> { . let adt_def = self.adt_def(wrapper_def_id); . let substs = 338 ( 0.00%) InternalSubsts::for_item(self, wrapper_def_id, |param, substs| match param.kind { . GenericParamDefKind::Lifetime | GenericParamDefKind::Const { .. } => bug!(), . GenericParamDefKind::Type { has_default, .. } => { 52 ( 0.00%) if param.index == 0 { . ty_param.into() . } else { . assert!(has_default); . self.type_of(param.def_id).subst(self, substs).into() . } . } . }); 26 ( 0.00%) self.mk_ty(Adt(adt_def, substs)) 208 ( 0.00%) } . . #[inline] . pub fn mk_box(self, ty: Ty<'tcx>) -> Ty<'tcx> { . let def_id = self.require_lang_item(LangItem::OwnedBox, None); . self.mk_generic_adt(def_id, ty) . } . . #[inline] -- line 2288 ---------------------------------------- -- line 2295 ---------------------------------------- . pub fn mk_diagnostic_item(self, ty: Ty<'tcx>, name: Symbol) -> Option> { . let def_id = self.get_diagnostic_item(name)?; . Some(self.mk_generic_adt(def_id, ty)) . } . . #[inline] . pub fn mk_maybe_uninit(self, ty: Ty<'tcx>) -> Ty<'tcx> { . let def_id = self.require_lang_item(LangItem::MaybeUninit, None); 78 ( 0.00%) self.mk_generic_adt(def_id, ty) . } . . #[inline] . pub fn mk_ptr(self, tm: TypeAndMut<'tcx>) -> Ty<'tcx> { . self.mk_ty(RawPtr(tm)) . } . . #[inline] -- line 2311 ---------------------------------------- -- line 2329 ---------------------------------------- . } . . #[inline] . pub fn mk_imm_ptr(self, ty: Ty<'tcx>) -> Ty<'tcx> { . self.mk_ptr(TypeAndMut { ty, mutbl: hir::Mutability::Not }) . } . . #[inline] 1,142 ( 0.00%) pub fn mk_array(self, ty: Ty<'tcx>, n: u64) -> Ty<'tcx> { . self.mk_ty(Array(ty, ty::Const::from_usize(self, n))) 1,184 ( 0.00%) } . . #[inline] . pub fn mk_slice(self, ty: Ty<'tcx>) -> Ty<'tcx> { . self.mk_ty(Slice(ty)) . } . . #[inline] . pub fn intern_tup(self, ts: &[Ty<'tcx>]) -> Ty<'tcx> { 36 ( 0.00%) let kinds: Vec<_> = ts.iter().map(|&t| GenericArg::from(t)).collect(); 78 ( 0.00%) self.mk_ty(Tuple(self.intern_substs(&kinds))) . } . . pub fn mk_tup], Ty<'tcx>>>(self, iter: I) -> I::Output { 1,720 ( 0.00%) iter.intern_with(|ts| { 988 ( 0.00%) let kinds: Vec<_> = ts.iter().map(|&t| GenericArg::from(t)).collect(); 3,445 ( 0.00%) self.mk_ty(Tuple(self.intern_substs(&kinds))) 1,548 ( 0.00%) }) . } . . #[inline] . pub fn mk_unit(self) -> Ty<'tcx> { 294 ( 0.00%) self.types.unit . } . . #[inline] . pub fn mk_diverging_default(self) -> Ty<'tcx> { . if self.features().never_type_fallback { self.types.never } else { self.types.unit } . } . . #[inline] . pub fn mk_fn_def(self, def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> { . self.mk_ty(FnDef(def_id, substs)) . } . . #[inline] . pub fn mk_fn_ptr(self, fty: PolyFnSig<'tcx>) -> Ty<'tcx> { 490 ( 0.00%) self.mk_ty(FnPtr(fty)) . } . . #[inline] . pub fn mk_dynamic( . self, . obj: &'tcx List>>, . reg: ty::Region<'tcx>, . ) -> Ty<'tcx> { -- line 2384 ---------------------------------------- -- line 2412 ---------------------------------------- . . #[inline] . pub fn mk_ty_var(self, v: TyVid) -> Ty<'tcx> { . self.mk_ty_infer(TyVar(v)) . } . . #[inline] . pub fn mk_const_var(self, v: ConstVid<'tcx>, ty: Ty<'tcx>) -> &'tcx Const<'tcx> { 6 ( 0.00%) self.mk_const(ty::Const { val: ty::ConstKind::Infer(InferConst::Var(v)), ty }) . } . . #[inline] . pub fn mk_int_var(self, v: IntVid) -> Ty<'tcx> { . self.mk_ty_infer(IntVar(v)) . } . . #[inline] -- line 2428 ---------------------------------------- -- line 2445 ---------------------------------------- . self.mk_ty(Param(ParamTy { index, name })) . } . . #[inline] . pub fn mk_const_param(self, index: u32, name: Symbol, ty: Ty<'tcx>) -> &'tcx Const<'tcx> { . self.mk_const(ty::Const { val: ty::ConstKind::Param(ParamConst { index, name }), ty }) . } . 5,628 ( 0.00%) pub fn mk_param_from_def(self, param: &ty::GenericParamDef) -> GenericArg<'tcx> { 3,960 ( 0.00%) match param.kind { . GenericParamDefKind::Lifetime => { 180 ( 0.00%) self.mk_region(ty::ReEarlyBound(param.to_early_bound_region_data())).into() . } 1,548 ( 0.00%) GenericParamDefKind::Type { .. } => self.mk_ty_param(param.index, param.name).into(), . GenericParamDefKind::Const { .. } => { . self.mk_const_param(param.index, param.name, self.type_of(param.def_id)).into() . } . } 5,628 ( 0.00%) } . . #[inline] . pub fn mk_opaque(self, def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> { . self.mk_ty(Opaque(def_id, substs)) . } . 421 ( 0.00%) pub fn mk_place_field(self, place: Place<'tcx>, f: Field, ty: Ty<'tcx>) -> Place<'tcx> { 421 ( 0.00%) self.mk_place_elem(place, PlaceElem::Field(f, ty)) 842 ( 0.00%) } . 2 ( 0.00%) pub fn mk_place_deref(self, place: Place<'tcx>) -> Place<'tcx> { 6 ( 0.00%) self.mk_place_elem(place, PlaceElem::Deref) 4 ( 0.00%) } . 139 ( 0.00%) pub fn mk_place_downcast( . self, . place: Place<'tcx>, . adt_def: &'tcx AdtDef, . variant_index: VariantIdx, . ) -> Place<'tcx> { 139 ( 0.00%) self.mk_place_elem( . place, 278 ( 0.00%) PlaceElem::Downcast(Some(adt_def.variants[variant_index].name), variant_index), . ) 278 ( 0.00%) } . 76 ( 0.00%) pub fn mk_place_downcast_unnamed( . self, . place: Place<'tcx>, . variant_index: VariantIdx, . ) -> Place<'tcx> { 76 ( 0.00%) self.mk_place_elem(place, PlaceElem::Downcast(None, variant_index)) 152 ( 0.00%) } . . pub fn mk_place_index(self, place: Place<'tcx>, index: Local) -> Place<'tcx> { . self.mk_place_elem(place, PlaceElem::Index(index)) . } . . /// This method copies `Place`'s projection, add an element and reintern it. Should not be used . /// to build a full `Place` it's just a convenient way to grab a projection and modify it in . /// flight. 6,732 ( 0.00%) pub fn mk_place_elem(self, place: Place<'tcx>, elem: PlaceElem<'tcx>) -> Place<'tcx> { . let mut projection = place.projection.to_vec(); . projection.push(elem); . . Place { local: place.local, projection: self.intern_place_elems(&projection) } 7,480 ( 0.00%) } . 4,781 ( 0.00%) pub fn intern_poly_existential_predicates( . self, . eps: &[ty::Binder<'tcx, ExistentialPredicate<'tcx>>], . ) -> &'tcx List>> { 728 ( 0.00%) assert!(!eps.is_empty()); . assert!( . eps.array_windows() 4,520 ( 0.00%) .all(|[a, b]| a.skip_binder().stable_cmp(self, &b.skip_binder()) . != Ordering::Greater) . ); 2,912 ( 0.00%) self._intern_poly_existential_predicates(eps) 5,464 ( 0.00%) } . . pub fn intern_predicates(self, preds: &[Predicate<'tcx>]) -> &'tcx List> { . // FIXME consider asking the input slice to be sorted to avoid . // re-interning permutations, in which case that would be asserted . // here. 4,997 ( 0.00%) if preds.is_empty() { . // The macro-generated method below asserts we don't intern an empty slice. . List::empty() . } else { 3,434 ( 0.00%) self._intern_predicates(preds) . } 3,296 ( 0.00%) } . . pub fn intern_type_list(self, ts: &[Ty<'tcx>]) -> &'tcx List> { 15,239 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_type_list(ts) } 794 ( 0.00%) } . . pub fn intern_substs(self, ts: &[GenericArg<'tcx>]) -> &'tcx List> { 251,133 ( 0.02%) if ts.is_empty() { List::empty() } else { self._intern_substs(ts) } 23,316 ( 0.00%) } . . pub fn intern_projs(self, ps: &[ProjectionKind]) -> &'tcx List { . if ps.is_empty() { List::empty() } else { self._intern_projs(ps) } . } . . pub fn intern_place_elems(self, ts: &[PlaceElem<'tcx>]) -> &'tcx List> { 8,923 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_place_elems(ts) } 5,806 ( 0.00%) } . . pub fn intern_canonical_var_infos( . self, . ts: &[CanonicalVarInfo<'tcx>], . ) -> CanonicalVarInfos<'tcx> { 10,103 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_canonical_var_infos(ts) } 4,426 ( 0.00%) } . . pub fn intern_bound_variable_kinds( . self, . ts: &[ty::BoundVariableKind], . ) -> &'tcx List { 7,352 ( 0.00%) if ts.is_empty() { List::empty() } else { self._intern_bound_variable_kinds(ts) } 10,530 ( 0.00%) } . . pub fn mk_fn_sig( . self, . inputs: I, . output: I::Item, . c_variadic: bool, . unsafety: hir::Unsafety, . abi: abi::Abi, . ) -> , ty::FnSig<'tcx>>>::Output . where . I: Iterator, ty::FnSig<'tcx>>>, . { . inputs.chain(iter::once(output)).intern_with(|xs| ty::FnSig { 763 ( 0.00%) inputs_and_output: self.intern_type_list(xs), 143 ( 0.00%) c_variadic, 205 ( 0.00%) unsafety, 162 ( 0.00%) abi, 20 ( 0.00%) }) . } . . pub fn mk_poly_existential_predicates< . I: InternAs< . [ty::Binder<'tcx, ExistentialPredicate<'tcx>>], . &'tcx List>>, . >, . >( . self, . iter: I, . ) -> I::Output { 2,187 ( 0.00%) iter.intern_with(|xs| self.intern_poly_existential_predicates(xs)) . } . . pub fn mk_predicates], &'tcx List>>>( . self, . iter: I, . ) -> I::Output { 38 ( 0.00%) iter.intern_with(|xs| self.intern_predicates(xs)) . } . . pub fn mk_type_list], &'tcx List>>>(self, iter: I) -> I::Output { 11,604 ( 0.00%) iter.intern_with(|xs| self.intern_type_list(xs)) . } . 30 ( 0.00%) pub fn mk_substs], &'tcx List>>>( . self, . iter: I, . ) -> I::Output { 635,436 ( 0.05%) iter.intern_with(|xs| self.intern_substs(xs)) 40 ( 0.00%) } . . pub fn mk_place_elems], &'tcx List>>>( . self, . iter: I, . ) -> I::Output { 46,366 ( 0.00%) iter.intern_with(|xs| self.intern_place_elems(xs)) . } . 4,928 ( 0.00%) pub fn mk_substs_trait(self, self_ty: Ty<'tcx>, rest: &[GenericArg<'tcx>]) -> SubstsRef<'tcx> { . self.mk_substs(iter::once(self_ty.into()).chain(rest.iter().cloned())) 9,856 ( 0.00%) } . . pub fn mk_bound_variable_kinds< . I: InternAs<[ty::BoundVariableKind], &'tcx List>, . >( . self, . iter: I, . ) -> I::Output { 47,000 ( 0.00%) iter.intern_with(|xs| self.intern_bound_variable_kinds(xs)) . } . . /// Walks upwards from `id` to find a node which might change lint levels with attributes. . /// It stops at `bound` and just returns it if reached. 27,972 ( 0.00%) pub fn maybe_lint_level_root_bounded(self, mut id: HirId, bound: HirId) -> HirId { 27,972 ( 0.00%) let hir = self.hir(); . loop { 63,057 ( 0.01%) if id == bound { . return bound; . } . 85,243 ( 0.01%) if hir.attrs(id).iter().any(|attr| Level::from_symbol(attr.name_or_empty()).is_some()) { . return id; . } . let next = hir.get_parent_node(id); 51,069 ( 0.00%) if next == id { . bug!("lint traversal reached the root of the crate"); . } . id = next; . } 39,960 ( 0.00%) } . 2,768 ( 0.00%) pub fn lint_level_at_node( . self, . lint: &'static Lint, . mut id: hir::HirId, . ) -> (Level, LintLevelSource) { . let sets = self.lint_levels(()); . loop { 13,853 ( 0.00%) if let Some(pair) = sets.level_and_source(lint, id, self.sess) { . return pair; . } 1,001 ( 0.00%) let next = self.hir().get_parent_node(id); 3,003 ( 0.00%) if next == id { . bug!("lint traversal reached the root of the crate"); . } . id = next; . } 2,768 ( 0.00%) } . 84 ( 0.00%) pub fn struct_span_lint_hir( . self, . lint: &'static Lint, . hir_id: HirId, . span: impl Into, . decorate: impl for<'a> FnOnce(LintDiagnosticBuilder<'a>), . ) { 563 ( 0.00%) let (level, src) = self.lint_level_at_node(lint, hir_id); 169 ( 0.00%) struct_lint_level(self.sess, lint, level, src, Some(span.into()), decorate); 48 ( 0.00%) } . . pub fn struct_lint_node( . self, . lint: &'static Lint, . id: HirId, . decorate: impl for<'a> FnOnce(LintDiagnosticBuilder<'a>), . ) { . let (level, src) = self.lint_level_at_node(lint, id); . struct_lint_level(self.sess, lint, level, src, None, decorate); . } . 1,540 ( 0.00%) pub fn in_scope_traits(self, id: HirId) -> Option<&'tcx [TraitCandidate]> { 440 ( 0.00%) let map = self.in_scope_traits_map(id.owner)?; . let candidates = map.get(&id.local_id)?; 440 ( 0.00%) Some(&*candidates) 1,760 ( 0.00%) } . 3,115 ( 0.00%) pub fn named_region(self, id: HirId) -> Option { . debug!(?id, "named_region"); . self.named_region_map(id.owner).and_then(|map| map.get(&id.local_id).cloned()) 4,005 ( 0.00%) } . 108 ( 0.00%) pub fn is_late_bound(self, id: HirId) -> bool { . self.is_late_bound_map(id.owner) 6 ( 0.00%) .map_or(false, |(owner, set)| owner == id.owner && set.contains(&id.local_id)) 96 ( 0.00%) } . 4,438 ( 0.00%) pub fn object_lifetime_defaults(self, id: HirId) -> Option> { . self.object_lifetime_defaults_map(id.owner) 5,706 ( 0.00%) } . 2,421 ( 0.00%) pub fn late_bound_vars(self, id: HirId) -> &'tcx List { . self.mk_bound_variable_kinds( . self.late_bound_vars_map(id.owner) . .and_then(|map| map.get(&id.local_id).cloned()) . .unwrap_or_else(|| { . bug!("No bound vars found for {:?} ({:?})", self.hir().node_to_string(id), id) . }) . .iter(), . ) 2,421 ( 0.00%) } . . pub fn lifetime_scope(self, id: HirId) -> Option { . self.lifetime_scope_map(id.owner).and_then(|mut map| map.remove(&id.local_id)) . } . . /// Whether the `def_id` counts as const fn in the current crate, considering all active . /// feature gates 180 ( 0.00%) pub fn is_const_fn(self, def_id: DefId) -> bool { 18 ( 0.00%) if self.is_const_fn_raw(def_id) { 12 ( 0.00%) match self.lookup_const_stability(def_id) { 8 ( 0.00%) Some(stability) if stability.level.is_unstable() => { . // has a `rustc_const_unstable` attribute, check whether the user enabled the . // corresponding feature gate. 4 ( 0.00%) self.features() . .declared_lib_features . .iter() . .any(|&(sym, _)| sym == stability.feature) . } . // functions without const stability are either stable user written . // const fn or the user is using feature gates and we thus don't . // care what they do . _ => true, . } . } else { . false . } 162 ( 0.00%) } . } . . impl<'tcx> TyCtxtAt<'tcx> { . /// Constructs a `TyKind::Error` type and registers a `delay_span_bug` to ensure it gets used. . #[track_caller] . pub fn ty_error(self) -> Ty<'tcx> { . self.tcx.ty_error_with_message(self.span, "TyKind::Error constructed but no error reported") . } -- line 2759 ---------------------------------------- -- line 2774 ---------------------------------------- . } . . impl InternAs<[T], R> for I . where . E: InternIteratorElement, . I: Iterator, . { . type Output = E::Output; 417,104 ( 0.03%) fn intern_with(self, f: F) -> Self::Output . where . F: FnOnce(&[T]) -> R, . { 650,720 ( 0.05%) E::intern_with(self, f) 395,118 ( 0.03%) } . } . . pub trait InternIteratorElement: Sized { . type Output; . fn intern_with, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output; . } . . impl InternIteratorElement for T { . type Output = R; 107,136 ( 0.01%) fn intern_with, F: FnOnce(&[T]) -> R>( . mut iter: I, . f: F, . ) -> Self::Output { . // This code is hot enough that it's worth specializing for the most . // common length lists, to avoid the overhead of `SmallVec` creation. . // Lengths 0, 1, and 2 typically account for ~95% of cases. If . // `size_hint` is incorrect a panic will occur via an `unwrap` or an . // `assert`. 302,823 ( 0.02%) match iter.size_hint() { . (0, Some(0)) => { 6 ( 0.00%) assert!(iter.next().is_none()); . f(&[]) . } . (1, Some(1)) => { . let t0 = iter.next().unwrap(); 12 ( 0.00%) assert!(iter.next().is_none()); 32,883 ( 0.00%) f(&[t0]) . } . (2, Some(2)) => { . let t0 = iter.next().unwrap(); . let t1 = iter.next().unwrap(); 64 ( 0.00%) assert!(iter.next().is_none()); 38,820 ( 0.00%) f(&[t0, t1]) . } 316 ( 0.00%) _ => f(&iter.collect::>()), . } 76,477 ( 0.01%) } . } . . impl<'a, T, R> InternIteratorElement for &'a T . where . T: Clone + 'a, . { . type Output = R; 1,506 ( 0.00%) fn intern_with, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output { . // This code isn't hot. 8 ( 0.00%) f(&iter.cloned().collect::>()) 1,214 ( 0.00%) } . } . . impl InternIteratorElement for Result { . type Output = Result; 154,275 ( 0.01%) fn intern_with, F: FnOnce(&[T]) -> R>( . mut iter: I, . f: F, . ) -> Self::Output { . // This code is hot enough that it's worth specializing for the most . // common length lists, to avoid the overhead of `SmallVec` creation. . // Lengths 0, 1, and 2 typically account for ~95% of cases. If . // `size_hint` is incorrect a panic will occur via an `unwrap` or an . // `assert`, unless a failure happens first, in which case the result . // will be an error anyway. 114,220 ( 0.01%) Ok(match iter.size_hint() { . (0, Some(0)) => { . assert!(iter.next().is_none()); . f(&[]) . } . (1, Some(1)) => { 162 ( 0.00%) let t0 = iter.next().unwrap()?; . assert!(iter.next().is_none()); 9,554 ( 0.00%) f(&[t0]) . } . (2, Some(2)) => { 807 ( 0.00%) let t0 = iter.next().unwrap()?; 807 ( 0.00%) let t1 = iter.next().unwrap()?; 117 ( 0.00%) assert!(iter.next().is_none()); 10,446 ( 0.00%) f(&[t0, t1]) . } 3,364 ( 0.00%) _ => f(&iter.collect::, _>>()?), . }) 172,912 ( 0.01%) } . } . . // We are comparing types with different invariant lifetimes, so `ptr::eq` . // won't work for us. . fn ptr_eq(t: *const T, u: *const U) -> bool { 122,007 ( 0.01%) t as *const () == u as *const () . } . . pub fn provide(providers: &mut ty::query::Providers) { 2 ( 0.00%) providers.in_scope_traits_map = . |tcx, id| tcx.hir_crate(()).owners[id].as_ref().map(|owner_info| &owner_info.trait_map); 3 ( 0.00%) providers.resolutions = |tcx, ()| &tcx.untracked_resolutions; 2 ( 0.00%) providers.module_reexports = . |tcx, id| tcx.resolutions(()).reexport_map.get(&id).map(|v| &v[..]); 2 ( 0.00%) providers.crate_name = |tcx, id| { 1 ( 0.00%) assert_eq!(id, LOCAL_CRATE); 1 ( 0.00%) tcx.crate_name . }; 2 ( 0.00%) providers.maybe_unused_trait_import = . |tcx, id| tcx.resolutions(()).maybe_unused_trait_imports.contains(&id); 2 ( 0.00%) providers.maybe_unused_extern_crates = . |tcx, ()| &tcx.resolutions(()).maybe_unused_extern_crates[..]; 2 ( 0.00%) providers.names_imported_by_glob_use = |tcx, id| { . tcx.arena.alloc(tcx.resolutions(()).glob_map.get(&id).cloned().unwrap_or_default()) . }; . 11 ( 0.00%) providers.lookup_stability = |tcx, id| tcx.stability().local_stability(id.expect_local()); 2 ( 0.00%) providers.lookup_const_stability = . |tcx, id| tcx.stability().local_const_stability(id.expect_local()); 2 ( 0.00%) providers.lookup_deprecation_entry = 3,024 ( 0.00%) |tcx, id| tcx.stability().local_deprecation_entry(id.expect_local()); 2 ( 0.00%) providers.extern_mod_stmt_cnum = . |tcx, id| tcx.resolutions(()).extern_crate_map.get(&id).cloned(); 3 ( 0.00%) providers.output_filenames = |tcx, ()| tcx.output_filenames.clone(); 3 ( 0.00%) providers.features_query = |tcx, ()| tcx.sess.features_untracked(); 2 ( 0.00%) providers.is_panic_runtime = |tcx, cnum| { 1 ( 0.00%) assert_eq!(cnum, LOCAL_CRATE); 7 ( 0.00%) tcx.sess.contains_name(tcx.hir().krate_attrs(), sym::panic_runtime) . }; 2 ( 0.00%) providers.is_compiler_builtins = |tcx, cnum| { 1 ( 0.00%) assert_eq!(cnum, LOCAL_CRATE); 7 ( 0.00%) tcx.sess.contains_name(tcx.hir().krate_attrs(), sym::compiler_builtins) . }; 2 ( 0.00%) providers.has_panic_handler = |tcx, cnum| { 1 ( 0.00%) assert_eq!(cnum, LOCAL_CRATE); . // We want to check if the panic handler was defined in this crate 3 ( 0.00%) tcx.lang_items().panic_impl().map_or(false, |did| did.is_local()) . }; . } 606,521 ( 0.05%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/sty.rs -------------------------------------------------------------------------------- Ir -- line 21 ---------------------------------------- . use rustc_target::spec::abi; . use std::borrow::Cow; . use std::cmp::Ordering; . use std::marker::PhantomData; . use std::ops::Range; . use ty::util::IntTypeExt; . . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] 2 ( 0.00%) #[derive(HashStable, TypeFoldable, Lift)] . pub struct TypeAndMut<'tcx> { 926 ( 0.00%) pub ty: Ty<'tcx>, 4,630 ( 0.00%) pub mutbl: hir::Mutability, . } . . #[derive(Clone, PartialEq, PartialOrd, Eq, Ord, Hash, TyEncodable, TyDecodable, Copy)] . #[derive(HashStable)] . /// A "free" region `fr` can be interpreted as "some region . /// at least as big as the scope `fr.scope`". . pub struct FreeRegion { 5,152 ( 0.00%) pub scope: DefId, 10,002 ( 0.00%) pub bound_region: BoundRegionKind, . } . 116,302 ( 0.01%) #[derive(Clone, PartialEq, PartialOrd, Eq, Ord, Hash, TyEncodable, TyDecodable, Copy)] 49 ( 0.00%) #[derive(HashStable)] . pub enum BoundRegionKind { . /// An anonymous region parameter for a given fn (&T) 12,591 ( 0.00%) BrAnon(u32), . . /// Named region parameters for functions (a in &'a T) . /// . /// The `DefId` is needed to distinguish free regions in . /// the event of shadowing. 110 ( 0.00%) BrNamed(DefId, Symbol), . . /// Anonymous region for the implicit env pointer parameter . /// to a closure . BrEnv, . } . 318 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, Hash, TyEncodable, TyDecodable, Debug, PartialOrd, Ord)] . #[derive(HashStable)] . pub struct BoundRegion { 19,324 ( 0.00%) pub var: BoundVar, 16,254 ( 0.00%) pub kind: BoundRegionKind, . } . . impl BoundRegionKind { . pub fn is_named(&self) -> bool { . match *self { . BoundRegionKind::BrNamed(_, name) => name != kw::UnderscoreLifetime, . _ => false, . } . } . } . . /// Defines the kinds of types. . /// . /// N.B., if you change this, you'll probably want to change the corresponding . /// AST structure in `rustc_ast/src/ast.rs` as well. 4,049,394 ( 0.33%) #[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable, Debug)] 51,721 ( 0.00%) #[derive(HashStable)] . #[rustc_diagnostic_item = "TyKind"] . pub enum TyKind<'tcx> { . /// The primitive boolean type. Written as `bool`. . Bool, . . /// The primitive character type; holds a Unicode scalar value . /// (a non-surrogate code point). Written as `char`. . Char, -- line 90 ---------------------------------------- -- line 99 ---------------------------------------- . Float(ty::FloatTy), . . /// Algebraic data types (ADT). For example: structures, enumerations and unions. . /// . /// InternalSubsts here, possibly against intuition, *may* contain `Param`s. . /// That is, even after substitution it is possible that there are type . /// variables. This happens when the `Adt` corresponds to an ADT . /// definition and not a concrete use of it. 482,154 ( 0.04%) Adt(&'tcx AdtDef, SubstsRef<'tcx>), . . /// An unsized FFI type that is opaque to Rust. Written as `extern type T`. . Foreign(DefId), . . /// The pointee of a string slice. Written as `str`. . Str, . . /// An array with the given length. Written as `[T; n]`. 4,937 ( 0.00%) Array(Ty<'tcx>, &'tcx ty::Const<'tcx>), . . /// The pointee of an array slice. Written as `[T]`. . Slice(Ty<'tcx>), . . /// A raw pointer. Written as `*mut T` or `*const T` . RawPtr(TypeAndMut<'tcx>), . . /// A reference; a pointer with an associated lifetime. Written as . /// `&'a mut T` or `&'a T`. 216,853 ( 0.02%) Ref(Region<'tcx>, Ty<'tcx>, hir::Mutability), . . /// The anonymous type of a function declaration/definition. Each . /// function has a unique type, which is output (for a function . /// named `foo` returning an `i32`) as `fn() -> i32 {foo}`. . /// . /// For example the type of `bar` here: . /// . /// ```rust -- line 134 ---------------------------------------- -- line 143 ---------------------------------------- . /// . /// ```rust . /// fn foo() -> i32 { 1 } . /// let bar: fn() -> i32 = foo; . /// ``` . FnPtr(PolyFnSig<'tcx>), . . /// A trait object. Written as `dyn for<'b> Trait<'b, Assoc = u32> + Send + 'a`. 16,724 ( 0.00%) Dynamic(&'tcx List>>, ty::Region<'tcx>), . . /// The anonymous type of a closure. Used to represent the type of . /// `|a| a`. . Closure(DefId, SubstsRef<'tcx>), . . /// The anonymous type of a generator. Used to represent the type of . /// `|a| yield a`. 4,984 ( 0.00%) Generator(DefId, SubstsRef<'tcx>, hir::Movability), . . /// A type representing the types stored inside a generator. . /// This should only appear in GeneratorInteriors. . GeneratorWitness(Binder<'tcx, &'tcx List>>), . . /// The never type `!`. . Never, . -- line 167 ---------------------------------------- -- line 180 ---------------------------------------- . /// The substitutions are for the generics of the function in question. . /// After typeck, the concrete type can be found in the `types` map. . Opaque(DefId, SubstsRef<'tcx>), . . /// A type parameter; for example, `T` in `fn f(x: T) {}`. . Param(ParamTy), . . /// Bound type variable, used only when preparing a trait query. 838 ( 0.00%) Bound(ty::DebruijnIndex, BoundTy), . . /// A placeholder type - universally quantified higher-ranked type. . Placeholder(ty::PlaceholderType), . . /// A type variable used during type checking. . Infer(InferTy), . . /// A placeholder for a type which could not be computed; this is -- line 196 ---------------------------------------- -- line 330 ---------------------------------------- . pub closure_kind_ty: T, . pub closure_sig_as_fn_ptr_ty: T, . pub tupled_upvars_ty: T, . } . . impl<'tcx> ClosureSubsts<'tcx> { . /// Construct `ClosureSubsts` from `ClosureSubstsParts`, containing `Substs` . /// for the closure parent, alongside additional closure-specific components. 2 ( 0.00%) pub fn new( . tcx: TyCtxt<'tcx>, . parts: ClosureSubstsParts<'tcx, Ty<'tcx>>, . ) -> ClosureSubsts<'tcx> { . ClosureSubsts { . substs: tcx.mk_substs( 4 ( 0.00%) parts.parent_substs.iter().copied().chain( 8 ( 0.00%) [parts.closure_kind_ty, parts.closure_sig_as_fn_ptr_ty, parts.tupled_upvars_ty] . .iter() . .map(|&ty| ty.into()), . ), . ), . } 4 ( 0.00%) } . . /// Divides the closure substs into their respective components. . /// The ordering assumed here must match that used by `ClosureSubsts::new` above. 57 ( 0.00%) fn split(self) -> ClosureSubstsParts<'tcx, GenericArg<'tcx>> { . match self.substs[..] { 8,522 ( 0.00%) [ 2,817 ( 0.00%) ref parent_substs @ .., 1,471 ( 0.00%) closure_kind_ty, 1,407 ( 0.00%) closure_sig_as_fn_ptr_ty, 1,440 ( 0.00%) tupled_upvars_ty, 228 ( 0.00%) ] => ClosureSubstsParts { . parent_substs, . closure_kind_ty, . closure_sig_as_fn_ptr_ty, . tupled_upvars_ty, . }, . _ => bug!("closure substs missing synthetics"), . } 171 ( 0.00%) } . . /// Returns `true` only if enough of the synthetic types are known to . /// allow using all of the methods on `ClosureSubsts` without panicking. . /// . /// Used primarily by `ty::print::pretty` to be able to handle closure . /// types that haven't had their synthetic types substituted in. . pub fn is_valid(self) -> bool { . self.substs.len() >= 3 -- line 378 ---------------------------------------- -- line 383 ---------------------------------------- . pub fn parent_substs(self) -> &'tcx [GenericArg<'tcx>] { . self.split().parent_substs . } . . /// Returns an iterator over the list of types of captured paths by the closure. . /// In case there was a type error in figuring out the types of the captured path, an . /// empty iterator is returned. . #[inline] 18 ( 0.00%) pub fn upvar_tys(self) -> impl Iterator> + 'tcx { 39 ( 0.00%) match self.tupled_upvars_ty().kind() { . TyKind::Error(_) => None, 18 ( 0.00%) TyKind::Tuple(..) => Some(self.tupled_upvars_ty().tuple_fields()), . TyKind::Infer(_) => bug!("upvar_tys called before capture types are inferred"), . ty => bug!("Unexpected representation of upvar types tuple {:?}", ty), . } . .into_iter() . .flatten() 12 ( 0.00%) } . . /// Returns the tuple type representing the upvars for this closure. . #[inline] . pub fn tupled_upvars_ty(self) -> Ty<'tcx> { 247 ( 0.00%) self.split().tupled_upvars_ty.expect_ty() . } . . /// Returns the closure kind for this closure; may return a type . /// variable during inference. To get the closure kind during . /// inference, use `infcx.closure_kind(substs)`. 27 ( 0.00%) pub fn kind_ty(self) -> Ty<'tcx> { . self.split().closure_kind_ty.expect_ty() 54 ( 0.00%) } . . /// Returns the `fn` pointer type representing the closure signature for this . /// closure. . // FIXME(eddyb) this should be unnecessary, as the shallowly resolved . // type is known at the time of the creation of `ClosureSubsts`, . // see `rustc_typeck::check::closure`. . pub fn sig_as_fn_ptr_ty(self) -> Ty<'tcx> { . self.split().closure_sig_as_fn_ptr_ty.expect_ty() . } . . /// Returns the closure kind for this closure; only usable outside . /// of an inference context, because in that context we know that . /// there are no type variables. . /// . /// If you have an inference context, use `infcx.closure_kind()`. 1 ( 0.00%) pub fn kind(self) -> ty::ClosureKind { 2 ( 0.00%) self.kind_ty().to_opt_closure_kind().unwrap() 2 ( 0.00%) } . . /// Extracts the signature from the closure. 27 ( 0.00%) pub fn sig(self) -> ty::PolyFnSig<'tcx> { . let ty = self.sig_as_fn_ptr_ty(); 54 ( 0.00%) match ty.kind() { 108 ( 0.00%) ty::FnPtr(sig) => *sig, . _ => bug!("closure_sig_as_fn_ptr_ty is not a fn-ptr: {:?}", ty.kind()), . } 81 ( 0.00%) } . } . . /// Similar to `ClosureSubsts`; see the above documentation for more. . #[derive(Copy, Clone, Debug, TypeFoldable)] . pub struct GeneratorSubsts<'tcx> { . pub substs: SubstsRef<'tcx>, . } . -- line 448 ---------------------------------------- -- line 453 ---------------------------------------- . pub return_ty: T, . pub witness: T, . pub tupled_upvars_ty: T, . } . . impl<'tcx> GeneratorSubsts<'tcx> { . /// Construct `GeneratorSubsts` from `GeneratorSubstsParts`, containing `Substs` . /// for the generator parent, alongside additional generator-specific components. 5 ( 0.00%) pub fn new( . tcx: TyCtxt<'tcx>, . parts: GeneratorSubstsParts<'tcx, Ty<'tcx>>, . ) -> GeneratorSubsts<'tcx> { . GeneratorSubsts { . substs: tcx.mk_substs( 10 ( 0.00%) parts.parent_substs.iter().copied().chain( 15 ( 0.00%) [ 5 ( 0.00%) parts.resume_ty, . parts.yield_ty, 5 ( 0.00%) parts.return_ty, . parts.witness, 5 ( 0.00%) parts.tupled_upvars_ty, . ] . .iter() . .map(|&ty| ty.into()), . ), . ), . } 10 ( 0.00%) } . . /// Divides the generator substs into their respective components. . /// The ordering assumed here must match that used by `GeneratorSubsts::new` above. 236 ( 0.00%) fn split(self) -> GeneratorSubstsParts<'tcx, GenericArg<'tcx>> { . match self.substs[..] { 3,642 ( 0.00%) [ref parent_substs @ .., resume_ty, yield_ty, return_ty, witness, tupled_upvars_ty] => { 1,180 ( 0.00%) GeneratorSubstsParts { . parent_substs, . resume_ty, . yield_ty, . return_ty, . witness, . tupled_upvars_ty, . } . } . _ => bug!("generator substs missing synthetics"), . } 708 ( 0.00%) } . . /// Returns `true` only if enough of the synthetic types are known to . /// allow using all of the methods on `GeneratorSubsts` without panicking. . /// . /// Used primarily by `ty::print::pretty` to be able to handle generator . /// types that haven't had their synthetic types substituted in. 5 ( 0.00%) pub fn is_valid(self) -> bool { 10 ( 0.00%) self.substs.len() >= 5 10 ( 0.00%) && matches!(self.split().tupled_upvars_ty.expect_ty().kind(), Tuple(_)) 10 ( 0.00%) } . . /// Returns the substitutions of the generator's parent. . pub fn parent_substs(self) -> &'tcx [GenericArg<'tcx>] { . self.split().parent_substs . } . . /// This describes the types that can be contained in a generator. . /// It will be a type variable initially and unified in the last stages of typeck of a body. . /// It contains a tuple of all the types that could end up on a generator frame. . /// The state transformation MIR pass may only produce layouts which mention types . /// in this tuple. Upvars are not counted here. 50 ( 0.00%) pub fn witness(self) -> Ty<'tcx> { . self.split().witness.expect_ty() 100 ( 0.00%) } . . /// Returns an iterator over the list of types of captured paths by the generator. . /// In case there was a type error in figuring out the types of the captured path, an . /// empty iterator is returned. . #[inline] 162 ( 0.00%) pub fn upvar_tys(self) -> impl Iterator> + 'tcx { 306 ( 0.00%) match self.tupled_upvars_ty().kind() { . TyKind::Error(_) => None, 156 ( 0.00%) TyKind::Tuple(..) => Some(self.tupled_upvars_ty().tuple_fields()), . TyKind::Infer(_) => bug!("upvar_tys called before capture types are inferred"), . ty => bug!("Unexpected representation of upvar types tuple {:?}", ty), . } . .into_iter() . .flatten() 108 ( 0.00%) } . . /// Returns the tuple type representing the upvars for this generator. . #[inline] . pub fn tupled_upvars_ty(self) -> Ty<'tcx> { 922 ( 0.00%) self.split().tupled_upvars_ty.expect_ty() . } . . /// Returns the type representing the resume type of the generator. 10 ( 0.00%) pub fn resume_ty(self) -> Ty<'tcx> { . self.split().resume_ty.expect_ty() 20 ( 0.00%) } . . /// Returns the type representing the yield type of the generator. 5 ( 0.00%) pub fn yield_ty(self) -> Ty<'tcx> { . self.split().yield_ty.expect_ty() 10 ( 0.00%) } . . /// Returns the type representing the return type of the generator. 5 ( 0.00%) pub fn return_ty(self) -> Ty<'tcx> { . self.split().return_ty.expect_ty() 10 ( 0.00%) } . . /// Returns the "generator signature", which consists of its yield . /// and return types. . /// . /// N.B., some bits of the code prefers to see this wrapped in a . /// binder, but it never contains bound regions. Probably this . /// function should be removed. 200 ( 0.00%) pub fn poly_sig(self) -> PolyGenSig<'tcx> { 50 ( 0.00%) ty::Binder::dummy(self.sig()) 200 ( 0.00%) } . . /// Returns the "generator signature", which consists of its resume, yield . /// and return types. 55 ( 0.00%) pub fn sig(self) -> GenSig<'tcx> { 165 ( 0.00%) ty::GenSig { . resume_ty: self.resume_ty(), . yield_ty: self.yield_ty(), . return_ty: self.return_ty(), . } 165 ( 0.00%) } . } . . impl<'tcx> GeneratorSubsts<'tcx> { . /// Generator has not been resumed yet. . pub const UNRESUMED: usize = 0; . /// Generator has returned or is completed. . pub const RETURNED: usize = 1; . /// Generator has been poisoned. -- line 586 ---------------------------------------- -- line 589 ---------------------------------------- . const UNRESUMED_NAME: &'static str = "Unresumed"; . const RETURNED_NAME: &'static str = "Returned"; . const POISONED_NAME: &'static str = "Panicked"; . . /// The valid variant indices of this generator. . #[inline] . pub fn variant_range(&self, def_id: DefId, tcx: TyCtxt<'tcx>) -> Range { . // FIXME requires optimized MIR 114 ( 0.00%) let num_variants = tcx.generator_layout(def_id).unwrap().variant_fields.len(); . VariantIdx::new(0)..VariantIdx::new(num_variants) . } . . /// The discriminant for the given variant. Panics if the `variant_index` is . /// out of range. . #[inline] . pub fn discriminant_for_variant( . &self, . def_id: DefId, . tcx: TyCtxt<'tcx>, . variant_index: VariantIdx, . ) -> Discr<'tcx> { . // Generators don't support explicit discriminant values, so they are . // the same as the variant index. 3 ( 0.00%) assert!(self.variant_range(def_id, tcx).contains(&variant_index)); 6 ( 0.00%) Discr { val: variant_index.as_usize() as u128, ty: self.discr_ty(tcx) } . } . . /// The set of all discriminants for the generator, enumerated with their . /// variant indices. . #[inline] . pub fn discriminants( . self, . def_id: DefId, -- line 621 ---------------------------------------- -- line 623 ---------------------------------------- . ) -> impl Iterator)> + Captures<'tcx> { . self.variant_range(def_id, tcx).map(move |index| { . (index, Discr { val: index.as_usize() as u128, ty: self.discr_ty(tcx) }) . }) . } . . /// Calls `f` with a reference to the name of the enumerator for the given . /// variant `v`. 162 ( 0.00%) pub fn variant_name(v: VariantIdx) -> Cow<'static, str> { 240 ( 0.00%) match v.as_usize() { . Self::UNRESUMED => Cow::from(Self::UNRESUMED_NAME), . Self::RETURNED => Cow::from(Self::RETURNED_NAME), . Self::POISONED => Cow::from(Self::POISONED_NAME), 84 ( 0.00%) _ => Cow::from(format!("Suspend{}", v.as_usize() - 3)), . } 216 ( 0.00%) } . . /// The type of the state discriminant used in the generator type. . #[inline] . pub fn discr_ty(&self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { 26 ( 0.00%) tcx.types.u32 . } . . /// This returns the types of the MIR locals which had to be stored across suspension points. . /// It is calculated in rustc_const_eval::transform::generator::StateTransform. . /// All the types here must be in the tuple in GeneratorInterior. . /// . /// The locals are grouped by their variant number. Note that some locals may . /// be repeated in multiple variants. . #[inline] . pub fn state_tys( . self, . def_id: DefId, . tcx: TyCtxt<'tcx>, . ) -> impl Iterator> + Captures<'tcx>> { 80 ( 0.00%) let layout = tcx.generator_layout(def_id).unwrap(); . layout.variant_fields.iter().map(move |variant| { 68 ( 0.00%) variant.iter().map(move |field| layout.field_tys[*field].subst(tcx, self.substs)) . }) . } . . /// This is the types of the fields of a generator which are not stored in a . /// variant. . #[inline] 270 ( 0.00%) pub fn prefix_tys(self) -> impl Iterator> { . self.upvar_tys() 212 ( 0.00%) } . } . . #[derive(Debug, Copy, Clone, HashStable)] . pub enum UpvarSubsts<'tcx> { . Closure(SubstsRef<'tcx>), . Generator(SubstsRef<'tcx>), . } . . impl<'tcx> UpvarSubsts<'tcx> { . /// Returns an iterator over the list of types of captured paths by the closure/generator. . /// In case there was a type error in figuring out the types of the captured path, an . /// empty iterator is returned. . #[inline] . pub fn upvar_tys(self) -> impl Iterator> + 'tcx { 22 ( 0.00%) let tupled_tys = match self { 8 ( 0.00%) UpvarSubsts::Closure(substs) => substs.as_closure().tupled_upvars_ty(), 21 ( 0.00%) UpvarSubsts::Generator(substs) => substs.as_generator().tupled_upvars_ty(), . }; . 47 ( 0.00%) match tupled_tys.kind() { . TyKind::Error(_) => None, 40 ( 0.00%) TyKind::Tuple(..) => Some(self.tupled_upvars_ty().tuple_fields()), . TyKind::Infer(_) => bug!("upvar_tys called before capture types are inferred"), . ty => bug!("Unexpected representation of upvar types tuple {:?}", ty), . } . .into_iter() . .flatten() . } . . #[inline] . pub fn tupled_upvars_ty(self) -> Ty<'tcx> { 36 ( 0.00%) match self { 11 ( 0.00%) UpvarSubsts::Closure(substs) => substs.as_closure().tupled_upvars_ty(), 36 ( 0.00%) UpvarSubsts::Generator(substs) => substs.as_generator().tupled_upvars_ty(), . } . } . } . . /// An inline const is modeled like . /// . /// const InlineConst<'l0...'li, T0...Tj, R>: R; . /// -- line 711 ---------------------------------------- -- line 760 ---------------------------------------- . } . . /// Returns the type of this inline const. . pub fn ty(self) -> Ty<'tcx> { . self.split().ty.expect_ty() . } . } . 50,096 ( 0.00%) #[derive(Debug, Copy, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, TyEncodable, TyDecodable)] 28,843 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub enum ExistentialPredicate<'tcx> { . /// E.g., `Iterator`. . Trait(ExistentialTraitRef<'tcx>), . /// E.g., `Iterator::Item = T`. . Projection(ExistentialProjection<'tcx>), . /// E.g., `Send`. 594 ( 0.00%) AutoTrait(DefId), . } . . impl<'tcx> ExistentialPredicate<'tcx> { . /// Compares via an ordering that will not change if modules are reordered or other changes are . /// made to the tree. In particular, this ordering is preserved across incremental compilations. 9,535 ( 0.00%) pub fn stable_cmp(&self, tcx: TyCtxt<'tcx>, other: &Self) -> Ordering { . use self::ExistentialPredicate::*; 13,134 ( 0.00%) match (*self, *other) { . (Trait(_), Trait(_)) => Ordering::Equal, . (Projection(ref a), Projection(ref b)) => { . tcx.def_path_hash(a.item_def_id).cmp(&tcx.def_path_hash(b.item_def_id)) . } . (AutoTrait(ref a), AutoTrait(ref b)) => { . tcx.def_path_hash(*a).cmp(&tcx.def_path_hash(*b)) . } . (Trait(_), _) => Ordering::Less, . (Projection(_), Trait(_)) => Ordering::Greater, . (Projection(_), _) => Ordering::Less, . (AutoTrait(_), _) => Ordering::Greater, . } 11,442 ( 0.00%) } . } . . impl<'tcx> Binder<'tcx, ExistentialPredicate<'tcx>> { 1,071 ( 0.00%) pub fn with_self_ty(&self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> ty::Predicate<'tcx> { . use crate::ty::ToPredicate; 687 ( 0.00%) match self.skip_binder() { . ExistentialPredicate::Trait(tr) => { . self.rebind(tr).with_self_ty(tcx, self_ty).without_const().to_predicate(tcx) . } . ExistentialPredicate::Projection(p) => { 4 ( 0.00%) self.rebind(p.with_self_ty(tcx, self_ty)).to_predicate(tcx) . } . ExistentialPredicate::AutoTrait(did) => { 57 ( 0.00%) let trait_ref = self.rebind(ty::TraitRef { . def_id: did, . substs: tcx.mk_substs_trait(self_ty, &[]), . }); . trait_ref.without_const().to_predicate(tcx) . } . } 952 ( 0.00%) } . } . . impl<'tcx> List>> { . /// Returns the "principal `DefId`" of this set of existential predicates. . /// . /// A Rust trait object type consists (in addition to a lifetime bound) . /// of a set of trait bounds, which are separated into any number . /// of auto-trait bounds, and at most one non-auto-trait bound. The -- line 826 ---------------------------------------- -- line 839 ---------------------------------------- . /// are the set `{Sync}`. . /// . /// It is also possible to have a "trivial" trait object that . /// consists only of auto traits, with no principal - for example, . /// `dyn Send + Sync`. In that case, the set of auto-trait bounds . /// is `{Send, Sync}`, while there is no principal. These trait objects . /// have a "trivial" vtable consisting of just the size, alignment, . /// and destructor. 69 ( 0.00%) pub fn principal(&self) -> Option>> { 575 ( 0.00%) self[0] 368 ( 0.00%) .map_bound(|this| match this { . ExistentialPredicate::Trait(tr) => Some(tr), . _ => None, 276 ( 0.00%) }) . .transpose() 207 ( 0.00%) } . 93 ( 0.00%) pub fn principal_def_id(&self) -> Option { . self.principal().map(|trait_ref| trait_ref.skip_binder().def_id) 186 ( 0.00%) } . . #[inline] . pub fn projection_bounds<'a>( . &'a self, . ) -> impl Iterator>> + 'a { . self.iter().filter_map(|predicate| { 108 ( 0.00%) predicate 313 ( 0.00%) .map_bound(|pred| match pred { 42 ( 0.00%) ExistentialPredicate::Projection(projection) => Some(projection), . _ => None, . }) . .transpose() . }) . } . . #[inline] . pub fn auto_traits<'a>(&'a self) -> impl Iterator + 'a { 3 ( 0.00%) self.iter().filter_map(|predicate| match predicate.skip_binder() { . ExistentialPredicate::AutoTrait(did) => Some(did), . _ => None, . }) . } . } . . /// A complete reference to a trait. These take numerous guises in syntax, . /// but perhaps the most recognizable form is in a where-clause: -- line 884 ---------------------------------------- -- line 886 ---------------------------------------- . /// T: Foo . /// . /// This would be represented by a trait-reference where the `DefId` is the . /// `DefId` for the trait `Foo` and the substs define `T` as parameter 0, . /// and `U` as parameter 1. . /// . /// Trait references also appear in object types like `Foo`, but in . /// that case the `Self` parameter is absent from the substitutions. 29,681 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] 391,962 ( 0.03%) #[derive(HashStable, TypeFoldable)] . pub struct TraitRef<'tcx> { 3,059 ( 0.00%) pub def_id: DefId, 236,616 ( 0.02%) pub substs: SubstsRef<'tcx>, . } . . impl<'tcx> TraitRef<'tcx> { 377 ( 0.00%) pub fn new(def_id: DefId, substs: SubstsRef<'tcx>) -> TraitRef<'tcx> { . TraitRef { def_id, substs } 1,508 ( 0.00%) } . . /// Returns a `TraitRef` of the form `P0: Foo` where `Pi` . /// are the parameters defined on trait. 459 ( 0.00%) pub fn identity(tcx: TyCtxt<'tcx>, def_id: DefId) -> Binder<'tcx, TraitRef<'tcx>> { 204 ( 0.00%) ty::Binder::dummy(TraitRef { . def_id, 306 ( 0.00%) substs: InternalSubsts::identity_for_item(tcx, def_id), . }) 408 ( 0.00%) } . . #[inline] . pub fn self_ty(&self) -> Ty<'tcx> { . self.substs.type_at(0) . } . 696 ( 0.00%) pub fn from_method( . tcx: TyCtxt<'tcx>, . trait_id: DefId, . substs: SubstsRef<'tcx>, . ) -> ty::TraitRef<'tcx> { . let defs = tcx.generics_of(trait_id); . 87 ( 0.00%) ty::TraitRef { def_id: trait_id, substs: tcx.intern_substs(&substs[..defs.params.len()]) } 957 ( 0.00%) } . } . . pub type PolyTraitRef<'tcx> = Binder<'tcx, TraitRef<'tcx>>; . . impl<'tcx> PolyTraitRef<'tcx> { . pub fn self_ty(&self) -> Binder<'tcx, Ty<'tcx>> { . self.map_bound_ref(|tr| tr.self_ty()) . } . . pub fn def_id(&self) -> DefId { 1,998 ( 0.00%) self.skip_binder().def_id 666 ( 0.00%) } . 1,033 ( 0.00%) pub fn to_poly_trait_predicate(&self) -> ty::PolyTraitPredicate<'tcx> { 2,066 ( 0.00%) self.map_bound(|trait_ref| ty::TraitPredicate { . trait_ref, . constness: ty::BoundConstness::NotConst, . polarity: ty::ImplPolarity::Positive, . }) 1,033 ( 0.00%) } . } . . /// An existential reference to a trait, where `Self` is erased. . /// For example, the trait object `Trait<'a, 'b, X, Y>` is: . /// . /// exists T. T: Trait<'a, 'b, X, Y> . /// . /// The substitutions don't include the erased `Self`, only trait . /// type and lifetime parameters (`[X, Y]` and `['a, 'b]` above). 716 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] 6,372 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct ExistentialTraitRef<'tcx> { 1,382 ( 0.00%) pub def_id: DefId, 8,918 ( 0.00%) pub substs: SubstsRef<'tcx>, . } . . impl<'tcx> ExistentialTraitRef<'tcx> { 80 ( 0.00%) pub fn erase_self_ty( . tcx: TyCtxt<'tcx>, . trait_ref: ty::TraitRef<'tcx>, . ) -> ty::ExistentialTraitRef<'tcx> { . // Assert there is a Self. . trait_ref.substs.type_at(0); . . ty::ExistentialTraitRef { . def_id: trait_ref.def_id, . substs: tcx.intern_substs(&trait_ref.substs[1..]), . } 80 ( 0.00%) } . . /// Object types don't have a self type specified. Therefore, when . /// we convert the principal trait-ref into a normal trait-ref, . /// you must give *some* self type. A common choice is `mk_err()` . /// or some placeholder type. 26 ( 0.00%) pub fn with_self_ty(&self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> ty::TraitRef<'tcx> { . // otherwise the escaping vars would be captured by the binder . // debug_assert!(!self_ty.has_escaping_bound_vars()); . 13 ( 0.00%) ty::TraitRef { def_id: self.def_id, substs: tcx.mk_substs_trait(self_ty, self.substs) } 65 ( 0.00%) } . } . . pub type PolyExistentialTraitRef<'tcx> = Binder<'tcx, ExistentialTraitRef<'tcx>>; . . impl<'tcx> PolyExistentialTraitRef<'tcx> { . pub fn def_id(&self) -> DefId { . self.skip_binder().def_id . } . . /// Object types don't have a self type specified. Therefore, when . /// we convert the principal trait-ref into a normal trait-ref, . /// you must give *some* self type. A common choice is `mk_err()` . /// or some placeholder type. 90 ( 0.00%) pub fn with_self_ty(&self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> ty::PolyTraitRef<'tcx> { 122 ( 0.00%) self.map_bound(|trait_ref| trait_ref.with_self_ty(tcx, self_ty)) 120 ( 0.00%) } . } . 56,089 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] 110 ( 0.00%) #[derive(HashStable)] . pub enum BoundVariableKind { . Ty(BoundTyKind), . Region(BoundRegionKind), . Const, . } . . /// Binder is a binder for higher-ranked lifetimes or types. It is part of the . /// compiler's representation for things like `for<'a> Fn(&'a isize)` . /// (which would be represented by the type `PolyTraitRef == . /// Binder<'tcx, TraitRef>`). Note that when we instantiate, . /// erase, or otherwise "discharge" these bound vars, we change the . /// type from `Binder<'tcx, T>` to just `T` (see . /// e.g., `liberate_late_bound_regions`). . /// . /// `Decodable` and `Encodable` are implemented for `Binder` using the `impl_binder_encode_decode!` macro. 35,877 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)] 140,197 ( 0.01%) pub struct Binder<'tcx, T>(T, &'tcx List); . . impl<'tcx, T> Binder<'tcx, T> . where . T: TypeFoldable<'tcx>, . { . /// Wraps `value` in a binder, asserting that `value` does not . /// contain any bound vars that would be bound by the . /// binder. This is commonly used to 'inject' a value T into a . /// different binding level. 6,104 ( 0.00%) pub fn dummy(value: T) -> Binder<'tcx, T> { 22,213 ( 0.00%) assert!(!value.has_escaping_bound_vars()); 55,209 ( 0.00%) Binder(value, ty::List::empty()) 6,024 ( 0.00%) } . . pub fn bind_with_vars(value: T, vars: &'tcx List) -> Binder<'tcx, T> { . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(vars); . value.visit_with(&mut validator); . } 15,752 ( 0.00%) Binder(value, vars) . } . } . . impl<'tcx, T> Binder<'tcx, T> { . /// Skips the binder and returns the "bound" value. This is a . /// risky thing to do because it's easy to get confused about . /// De Bruijn indices and the like. It is usually better to . /// discharge the binder using `no_bound_vars` or -- line 1053 ---------------------------------------- -- line 1059 ---------------------------------------- . /// accounting. . /// . /// Some examples where `skip_binder` is reasonable: . /// . /// - extracting the `DefId` from a PolyTraitRef; . /// - comparing the self type of a PolyTraitRef to see if it is equal to . /// a type parameter `X`, since the type `X` does not reference any regions . pub fn skip_binder(self) -> T { 337,712 ( 0.03%) self.0 . } . . pub fn bound_vars(&self) -> &'tcx List { 612 ( 0.00%) self.1 . } . . pub fn as_ref(&self) -> Binder<'tcx, &T> { 2,345 ( 0.00%) Binder(&self.0, self.1) . } . . pub fn map_bound_ref_unchecked(&self, f: F) -> Binder<'tcx, U> . where . F: FnOnce(&T) -> U, . { . let value = f(&self.0); . Binder(value, self.1) -- line 1083 ---------------------------------------- -- line 1085 ---------------------------------------- . . pub fn map_bound_ref>(&self, f: F) -> Binder<'tcx, U> . where . F: FnOnce(&T) -> U, . { . self.as_ref().map_bound(f) . } . 391 ( 0.00%) pub fn map_bound>(self, f: F) -> Binder<'tcx, U> . where . F: FnOnce(T) -> U, . { 16,310 ( 0.00%) let value = f(self.0); . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(self.1); . value.visit_with(&mut validator); . } 64,966 ( 0.01%) Binder(value, self.1) 421 ( 0.00%) } . . pub fn try_map_bound, E>(self, f: F) -> Result, E> . where . F: FnOnce(T) -> Result, . { . let value = f(self.0)?; . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(self.1); . value.visit_with(&mut validator); . } 4,374 ( 0.00%) Ok(Binder(value, self.1)) . } . . /// Wraps a `value` in a binder, using the same bound variables as the . /// current `Binder`. This should not be used if the new value *changes* . /// the bound variables. Note: the (old or new) value itself does not . /// necessarily need to *name* all the bound variables. . /// . /// This currently doesn't do anything different than `bind`, because we -- line 1122 ---------------------------------------- -- line 1126 ---------------------------------------- . pub fn rebind(&self, value: U) -> Binder<'tcx, U> . where . U: TypeFoldable<'tcx>, . { . if cfg!(debug_assertions) { . let mut validator = ValidateBoundVars::new(self.bound_vars()); . value.visit_with(&mut validator); . } 6,465 ( 0.00%) Binder(value, self.1) . } . . /// Unwraps and returns the value within, but only if it contains . /// no bound vars at all. (In other words, if this binder -- . /// and indeed any enclosing binder -- doesn't bind anything at . /// all.) Otherwise, returns `None`. . /// . /// (One could imagine having a method that just unwraps a single -- line 1142 ---------------------------------------- -- line 1143 ---------------------------------------- . /// binder, but permits late-bound vars bound by enclosing . /// binders, but that would require adjusting the debruijn . /// indices, and given the shallow binding structure we often use, . /// would not be that useful.) . pub fn no_bound_vars(self) -> Option . where . T: TypeFoldable<'tcx>, . { 53,819 ( 0.00%) if self.0.has_escaping_bound_vars() { None } else { Some(self.skip_binder()) } 150 ( 0.00%) } . . /// Splits the contents into two things that share the same binder . /// level as the original, returning two distinct binders. . /// . /// `f` should consider bound regions at depth 1 to be free, and . /// anything it produces with bound regions at depth 1 will be . /// bound in the resulting return values. . pub fn split(self, f: F) -> (Binder<'tcx, U>, Binder<'tcx, V>) -- line 1160 ---------------------------------------- -- line 1170 ---------------------------------------- . pub fn transpose(self) -> Option> { . let bound_vars = self.1; . self.0.map(|v| Binder(v, bound_vars)) . } . } . . /// Represents the projection of an associated type. In explicit UFCS . /// form this would be written `>::N`. 773 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] 13,596 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct ProjectionTy<'tcx> { . /// The parameters of the associated item. 9,596 ( 0.00%) pub substs: SubstsRef<'tcx>, . . /// The `DefId` of the `TraitItem` for the associated type `N`. . /// . /// Note that this is not the `DefId` of the `TraitRef` containing this . /// associated type, which is in `tcx.associated_item(item_def_id).container`. 9,643 ( 0.00%) pub item_def_id: DefId, . } . . impl<'tcx> ProjectionTy<'tcx> { 6,986 ( 0.00%) pub fn trait_def_id(&self, tcx: TyCtxt<'tcx>) -> DefId { 1,996 ( 0.00%) tcx.associated_item(self.item_def_id).container.id() 7,984 ( 0.00%) } . . /// Extracts the underlying trait reference and own substs from this projection. . /// For example, if this is a projection of `::Item<'a>`, . /// then this function would return a `T: Iterator` trait reference and `['a]` as the own substs 5,061 ( 0.00%) pub fn trait_ref_and_own_substs( . &self, . tcx: TyCtxt<'tcx>, . ) -> (ty::TraitRef<'tcx>, &'tcx [ty::GenericArg<'tcx>]) { 2,169 ( 0.00%) let def_id = tcx.associated_item(self.item_def_id).container.id(); . let trait_generics = tcx.generics_of(def_id); 3,615 ( 0.00%) ( . ty::TraitRef { def_id, substs: self.substs.truncate_to(tcx, trait_generics) }, . &self.substs[trait_generics.count()..], . ) 6,507 ( 0.00%) } . . /// Extracts the underlying trait reference from this projection. . /// For example, if this is a projection of `::Item`, . /// then this function would return a `T: Iterator` trait reference. . /// . /// WARNING: This will drop the substs for generic associated types . /// consider calling [Self::trait_ref_and_own_substs] to get those . /// as well. 8,892 ( 0.00%) pub fn trait_ref(&self, tcx: TyCtxt<'tcx>) -> ty::TraitRef<'tcx> { 988 ( 0.00%) let def_id = self.trait_def_id(tcx); 988 ( 0.00%) ty::TraitRef { def_id, substs: self.substs.truncate_to(tcx, tcx.generics_of(def_id)) } 10,868 ( 0.00%) } . 1,961 ( 0.00%) pub fn self_ty(&self) -> Ty<'tcx> { 5,883 ( 0.00%) self.substs.type_at(0) 3,922 ( 0.00%) } . } . 220 ( 0.00%) #[derive(Copy, Clone, Debug, TypeFoldable)] . pub struct GenSig<'tcx> { . pub resume_ty: Ty<'tcx>, . pub yield_ty: Ty<'tcx>, . pub return_ty: Ty<'tcx>, . } . . pub type PolyGenSig<'tcx> = Binder<'tcx, GenSig<'tcx>>; . . /// Signature of a function type, which we have arbitrarily . /// decided to use to refer to the input/output types. . /// . /// - `inputs`: is the list of arguments and their modes. . /// - `output`: is the return type. . /// - `c_variadic`: indicates whether this is a C-variadic function. 26,019 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] 5,988 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct FnSig<'tcx> { 523 ( 0.00%) pub inputs_and_output: &'tcx List>, 11,395 ( 0.00%) pub c_variadic: bool, 1,968 ( 0.00%) pub unsafety: hir::Unsafety, 12,689 ( 0.00%) pub abi: abi::Abi, . } . . impl<'tcx> FnSig<'tcx> { 4,972 ( 0.00%) pub fn inputs(&self) -> &'tcx [Ty<'tcx>] { 25,039 ( 0.00%) &self.inputs_and_output[..self.inputs_and_output.len() - 1] 9,944 ( 0.00%) } . 3,128 ( 0.00%) pub fn output(&self) -> Ty<'tcx> { 26,338 ( 0.00%) self.inputs_and_output[self.inputs_and_output.len() - 1] 6,256 ( 0.00%) } . . // Creates a minimal `FnSig` to be used when encountering a `TyKind::Error` in a fallible . // method. . fn fake() -> FnSig<'tcx> { . FnSig { . inputs_and_output: List::empty(), . c_variadic: false, . unsafety: hir::Unsafety::Normal, -- line 1267 ---------------------------------------- -- line 1270 ---------------------------------------- . } . } . . pub type PolyFnSig<'tcx> = Binder<'tcx, FnSig<'tcx>>; . . impl<'tcx> PolyFnSig<'tcx> { . #[inline] . pub fn inputs(&self) -> Binder<'tcx, &'tcx [Ty<'tcx>]> { 1,006 ( 0.00%) self.map_bound_ref_unchecked(|fn_sig| fn_sig.inputs()) . } . #[inline] . pub fn input(&self, index: usize) -> ty::Binder<'tcx, Ty<'tcx>> { 2,274 ( 0.00%) self.map_bound_ref(|fn_sig| fn_sig.inputs()[index]) . } . pub fn inputs_and_output(&self) -> ty::Binder<'tcx, &'tcx List>> { . self.map_bound_ref(|fn_sig| fn_sig.inputs_and_output) 97 ( 0.00%) } . #[inline] . pub fn output(&self) -> ty::Binder<'tcx, Ty<'tcx>> { 1,657 ( 0.00%) self.map_bound_ref(|fn_sig| fn_sig.output()) . } . pub fn c_variadic(&self) -> bool { 194 ( 0.00%) self.skip_binder().c_variadic 97 ( 0.00%) } . pub fn unsafety(&self) -> hir::Unsafety { 766 ( 0.00%) self.skip_binder().unsafety 383 ( 0.00%) } . pub fn abi(&self) -> abi::Abi { 6,176 ( 0.00%) self.skip_binder().abi 1,544 ( 0.00%) } . } . . pub type CanonicalPolyFnSig<'tcx> = Canonical<'tcx, Binder<'tcx, FnSig<'tcx>>>; . 64 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] 208 ( 0.00%) #[derive(HashStable)] . pub struct ParamTy { 44 ( 0.00%) pub index: u32, . pub name: Symbol, . } . . impl<'tcx> ParamTy { 156 ( 0.00%) pub fn new(index: u32, name: Symbol) -> ParamTy { . ParamTy { index, name } 78 ( 0.00%) } . . pub fn for_def(def: &ty::GenericParamDef) -> ParamTy { 110 ( 0.00%) ParamTy::new(def.index, def.name) 55 ( 0.00%) } . . #[inline] . pub fn to_ty(self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { . tcx.mk_ty_param(self.index, self.name) . } . } . . #[derive(Copy, Clone, Hash, TyEncodable, TyDecodable, Eq, PartialEq, Ord, PartialOrd)] . #[derive(HashStable)] . pub struct ParamConst { 90 ( 0.00%) pub index: u32, 90 ( 0.00%) pub name: Symbol, . } . . impl ParamConst { . pub fn new(index: u32, name: Symbol) -> ParamConst { . ParamConst { index, name } . } . . pub fn for_def(def: &ty::GenericParamDef) -> ParamConst { -- line 1338 ---------------------------------------- -- line 1440 ---------------------------------------- . /// the inference variable is supposed to satisfy the relation . /// *for every value of the placeholder region*. To ensure that doesn't . /// happen, you can use `leak_check`. This is more clearly explained . /// by the [rustc dev guide]. . /// . /// [1]: https://smallcultfollowing.com/babysteps/blog/2013/10/29/intermingled-parameter-lists/ . /// [2]: https://smallcultfollowing.com/babysteps/blog/2013/11/04/intermingled-parameter-lists/ . /// [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/traits/hrtb.html 924,315 ( 0.08%) #[derive(Clone, PartialEq, Eq, Hash, Copy, TyEncodable, TyDecodable, PartialOrd, Ord)] 10,076 ( 0.00%) pub enum RegionKind { . /// Region bound in a type or fn declaration which will be . /// substituted 'early' -- that is, at the same time when type . /// parameters are substituted. . ReEarlyBound(EarlyBoundRegion), . . /// Region bound in a function scope, which will be substituted when the . /// function is called. 32,028 ( 0.00%) ReLateBound(ty::DebruijnIndex, BoundRegion), . . /// When checking a function body, the types of all arguments and so forth . /// that refer to bound region parameters are modified to refer to free . /// region parameters. . ReFree(FreeRegion), . . /// Static data that has an "infinite" lifetime. Top in the region lattice. . ReStatic, -- line 1465 ---------------------------------------- -- line 1478 ---------------------------------------- . /// regions visible from `U`, but not less than regions not visible . /// from `U`. . ReEmpty(ty::UniverseIndex), . . /// Erased region, used by trait selection, in MIR and during codegen. . ReErased, . } . 16,708 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, Hash, TyEncodable, TyDecodable, Debug, PartialOrd, Ord)] . pub struct EarlyBoundRegion { 535 ( 0.00%) pub def_id: DefId, 7,801 ( 0.00%) pub index: u32, 5,484 ( 0.00%) pub name: Symbol, . } . . /// A **`const`** **v**ariable **ID**. . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable)] . pub struct ConstVid<'tcx> { 289 ( 0.00%) pub index: u32, 1 ( 0.00%) pub phantom: PhantomData<&'tcx ()>, . } . . rustc_index::newtype_index! { . /// A **region** (lifetime) **v**ariable **ID**. . pub struct RegionVid { . DEBUG_FORMAT = custom, . } . } -- line 1505 ---------------------------------------- -- line 1513 ---------------------------------------- . rustc_index::newtype_index! { . pub struct BoundVar { .. } . } . . #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] . #[derive(HashStable)] . pub struct BoundTy { . pub var: BoundVar, 838 ( 0.00%) pub kind: BoundTyKind, . } . 14,303 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] . #[derive(HashStable)] . pub enum BoundTyKind { . Anon, . Param(Symbol), . } . . impl From for BoundTy { . fn from(var: BoundVar) -> Self { . BoundTy { var, kind: BoundTyKind::Anon } . } . } . . /// A `ProjectionPredicate` for an `ExistentialTraitRef`. 78 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] 5,767 ( 0.00%) #[derive(HashStable, TypeFoldable)] . pub struct ExistentialProjection<'tcx> { 1,118 ( 0.00%) pub item_def_id: DefId, 7,416 ( 0.00%) pub substs: SubstsRef<'tcx>, 1,854 ( 0.00%) pub term: Term<'tcx>, . } . . pub type PolyExistentialProjection<'tcx> = Binder<'tcx, ExistentialProjection<'tcx>>; . . impl<'tcx> ExistentialProjection<'tcx> { . /// Extracts the underlying existential trait reference from this projection. . /// For example, if this is a projection of `exists T. ::Item == X`, . /// then this function would return an `exists T. T: Iterator` existential trait . /// reference. 623 ( 0.00%) pub fn trait_ref(&self, tcx: TyCtxt<'tcx>) -> ty::ExistentialTraitRef<'tcx> { 267 ( 0.00%) let def_id = tcx.associated_item(self.item_def_id).container.id(); 178 ( 0.00%) let subst_count = tcx.generics_of(def_id).count() - 1; 89 ( 0.00%) let substs = tcx.intern_substs(&self.substs[..subst_count]); . ty::ExistentialTraitRef { def_id, substs } 801 ( 0.00%) } . . pub fn with_self_ty( . &self, . tcx: TyCtxt<'tcx>, . self_ty: Ty<'tcx>, . ) -> ty::ProjectionPredicate<'tcx> { . // otherwise the escaping regions would be captured by the binders . debug_assert!(!self_ty.has_escaping_bound_vars()); -- line 1566 ---------------------------------------- -- line 1569 ---------------------------------------- . projection_ty: ty::ProjectionTy { . item_def_id: self.item_def_id, . substs: tcx.mk_substs_trait(self_ty, self.substs), . }, . term: self.term, . } . } . 45 ( 0.00%) pub fn erase_self_ty( . tcx: TyCtxt<'tcx>, . projection_predicate: ty::ProjectionPredicate<'tcx>, . ) -> Self { . // Assert there is a Self. 27 ( 0.00%) projection_predicate.projection_ty.substs.type_at(0); . 36 ( 0.00%) Self { 18 ( 0.00%) item_def_id: projection_predicate.projection_ty.item_def_id, . substs: tcx.intern_substs(&projection_predicate.projection_ty.substs[1..]), 9 ( 0.00%) term: projection_predicate.term, . } 63 ( 0.00%) } . } . . impl<'tcx> PolyExistentialProjection<'tcx> { 80 ( 0.00%) pub fn with_self_ty( . &self, . tcx: TyCtxt<'tcx>, . self_ty: Ty<'tcx>, . ) -> ty::PolyProjectionPredicate<'tcx> { 80 ( 0.00%) self.map_bound(|p| p.with_self_ty(tcx, self_ty)) 96 ( 0.00%) } . . pub fn item_def_id(&self) -> DefId { 32 ( 0.00%) self.skip_binder().item_def_id 16 ( 0.00%) } . } . . /// Region utilities . impl RegionKind { . /// Is this region named by the user? . pub fn has_name(&self) -> bool { . match *self { . RegionKind::ReEarlyBound(ebr) => ebr.has_name(), -- line 1611 ---------------------------------------- -- line 1616 ---------------------------------------- . RegionKind::RePlaceholder(placeholder) => placeholder.name.is_named(), . RegionKind::ReEmpty(_) => false, . RegionKind::ReErased => false, . } . } . . #[inline] . pub fn is_late_bound(&self) -> bool { 860 ( 0.00%) matches!(*self, ty::ReLateBound(..)) . } . . #[inline] . pub fn is_placeholder(&self) -> bool { . matches!(*self, ty::RePlaceholder(..)) . } . . #[inline] . pub fn bound_at_or_above_binder(&self, index: ty::DebruijnIndex) -> bool { 19,710 ( 0.00%) match *self { . ty::ReLateBound(debruijn, _) => debruijn >= index, . _ => false, . } . } . . pub fn type_flags(&self) -> TypeFlags { . let mut flags = TypeFlags::empty(); . 51,595 ( 0.00%) match *self { . ty::ReVar(..) => { . flags = flags | TypeFlags::HAS_FREE_REGIONS; . flags = flags | TypeFlags::HAS_FREE_LOCAL_REGIONS; . flags = flags | TypeFlags::HAS_RE_INFER; . } . ty::RePlaceholder(..) => { . flags = flags | TypeFlags::HAS_FREE_REGIONS; . flags = flags | TypeFlags::HAS_FREE_LOCAL_REGIONS; -- line 1651 ---------------------------------------- -- line 1669 ---------------------------------------- . ty::ReErased => { . flags = flags | TypeFlags::HAS_RE_ERASED; . } . } . . debug!("type_flags({:?}) = {:?}", self, flags); . . flags 2,115 ( 0.00%) } . . /// Given an early-bound or free region, returns the `DefId` where it was bound. . /// For example, consider the regions in this snippet of code: . /// . /// ``` . /// impl<'a> Foo { . /// ^^ -- early bound, declared on an impl . /// -- line 1685 ---------------------------------------- -- line 1713 ---------------------------------------- . . #[inline(always)] . pub fn flags(&self) -> TypeFlags { . self.flags . } . . #[inline] . pub fn is_unit(&self) -> bool { 675 ( 0.00%) match self.kind() { 122 ( 0.00%) Tuple(ref tys) => tys.is_empty(), . _ => false, . } . } . . #[inline] . pub fn is_never(&self) -> bool { 6,335 ( 0.00%) matches!(self.kind(), Never) . } . . #[inline] . pub fn is_primitive(&self) -> bool { . self.kind().is_primitive() . } . . #[inline] -- line 1737 ---------------------------------------- -- line 1741 ---------------------------------------- . . #[inline] . pub fn is_ref(&self) -> bool { . matches!(self.kind(), Ref(..)) . } . . #[inline] . pub fn is_ty_var(&self) -> bool { 11,473 ( 0.00%) matches!(self.kind(), Infer(TyVar(_))) . } . . #[inline] . pub fn ty_vid(&self) -> Option { 9,246 ( 0.00%) match self.kind() { 1,033 ( 0.00%) &Infer(TyVar(vid)) => Some(vid), . _ => None, . } . } . . #[inline] . pub fn is_ty_infer(&self) -> bool { 21 ( 0.00%) matches!(self.kind(), Infer(_)) . } . . #[inline] . pub fn is_phantom_data(&self) -> bool { 6 ( 0.00%) if let Adt(def, _) = self.kind() { def.is_phantom_data() } else { false } . } . . #[inline] . pub fn is_bool(&self) -> bool { . *self.kind() == Bool . } . . /// Returns `true` if this type is a `str`. . #[inline] . pub fn is_str(&self) -> bool { . *self.kind() == Str . } . . #[inline] . pub fn is_param(&self, index: u32) -> bool { 8 ( 0.00%) match self.kind() { . ty::Param(ref data) => data.index == index, . _ => false, . } . } . . #[inline] . pub fn is_slice(&self) -> bool { . match self.kind() { . RawPtr(TypeAndMut { ty, .. }) | Ref(_, ty, _) => matches!(ty.kind(), Slice(_) | Str), . _ => false, . } . } . . #[inline] . pub fn is_array(&self) -> bool { 57 ( 0.00%) matches!(self.kind(), Array(..)) . } . . #[inline] . pub fn is_simd(&self) -> bool { . match self.kind() { . Adt(def, _) => def.repr.simd(), . _ => false, . } . } . 56 ( 0.00%) pub fn sequence_element_type(&self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { 112 ( 0.00%) match self.kind() { . Array(ty, _) | Slice(ty) => ty, . Str => tcx.mk_mach_uint(ty::UintTy::U8), . _ => bug!("`sequence_element_type` called on non-sequence value: {}", self), . } 56 ( 0.00%) } . . pub fn simd_size_and_type(&self, tcx: TyCtxt<'tcx>) -> (u64, Ty<'tcx>) { . match self.kind() { . Adt(def, substs) => { . assert!(def.repr.simd(), "`simd_size_and_type` called on non-SIMD type"); . let variant = def.non_enum_variant(); . let f0_ty = variant.fields[0].ty(tcx, substs); . -- line 1824 ---------------------------------------- -- line 1861 ---------------------------------------- . match self.kind() { . Ref(_, _, mutability) => Some(*mutability), . _ => None, . } . } . . #[inline] . pub fn is_unsafe_ptr(&self) -> bool { 1,278 ( 0.00%) matches!(self.kind(), RawPtr(_)) . } . . /// Tests if this is any kind of primitive pointer type (reference, raw pointer, fn pointer). . #[inline] . pub fn is_any_ptr(&self) -> bool { . self.is_region_ptr() || self.is_unsafe_ptr() || self.is_fn_ptr() . } . . #[inline] . pub fn is_box(&self) -> bool { 11,044 ( 0.00%) match self.kind() { 3,054 ( 0.00%) Adt(def, _) => def.is_box(), . _ => false, . } . } . . /// Panics if called on any type other than `Box`. 56 ( 0.00%) pub fn boxed_ty(&self) -> Ty<'tcx> { 56 ( 0.00%) match self.kind() { 140 ( 0.00%) Adt(def, substs) if def.is_box() => substs.type_at(0), . _ => bug!("`boxed_ty` is called on non-box type {:?}", self), . } 56 ( 0.00%) } . . /// A scalar type is one that denotes an atomic datum, with no sub-components. . /// (A RawPtr is scalar because it represents a non-managed pointer, so its . /// contents are abstract to rustc.) . #[inline] . pub fn is_scalar(&self) -> bool { 87 ( 0.00%) matches!( 209 ( 0.00%) self.kind(), . Bool | Char . | Int(_) . | Float(_) . | Uint(_) . | FnDef(..) . | FnPtr(_) . | RawPtr(_) . | Infer(IntVar(_) | FloatVar(_)) . ) . } . . /// Returns `true` if this type is a floating point type. . #[inline] . pub fn is_floating_point(&self) -> bool { 65 ( 0.00%) matches!(self.kind(), Float(_) | Infer(FloatVar(_))) . } . . #[inline] . pub fn is_trait(&self) -> bool { 27 ( 0.00%) matches!(self.kind(), Dynamic(..)) . } . . #[inline] . pub fn is_enum(&self) -> bool { 420 ( 0.00%) matches!(self.kind(), Adt(adt_def, _) if adt_def.is_enum()) . } . . #[inline] . pub fn is_union(&self) -> bool { 1,498 ( 0.00%) matches!(self.kind(), Adt(adt_def, _) if adt_def.is_union()) . } . . #[inline] . pub fn is_closure(&self) -> bool { 352 ( 0.00%) matches!(self.kind(), Closure(..)) . } . . #[inline] . pub fn is_generator(&self) -> bool { 732 ( 0.00%) matches!(self.kind(), Generator(..)) . } . . #[inline] . pub fn is_integral(&self) -> bool { 737 ( 0.00%) matches!(self.kind(), Infer(IntVar(_)) | Int(_) | Uint(_)) . } . . #[inline] . pub fn is_fresh_ty(&self) -> bool { . matches!(self.kind(), Infer(FreshTy(_))) . } . . #[inline] . pub fn is_fresh(&self) -> bool { 1,559 ( 0.00%) matches!(self.kind(), Infer(FreshTy(_) | FreshIntTy(_) | FreshFloatTy(_))) . } . . #[inline] . pub fn is_char(&self) -> bool { . matches!(self.kind(), Char) . } . . #[inline] . pub fn is_numeric(&self) -> bool { . self.is_integral() || self.is_floating_point() . } . . #[inline] . pub fn is_signed(&self) -> bool { 21 ( 0.00%) matches!(self.kind(), Int(_)) . } . . #[inline] . pub fn is_ptr_sized_integral(&self) -> bool { 72 ( 0.00%) matches!(self.kind(), Int(ty::IntTy::Isize) | Uint(ty::UintTy::Usize)) . } . . #[inline] . pub fn has_concrete_skeleton(&self) -> bool { . !matches!(self.kind(), Param(_) | Infer(_) | Error(_)) . } . . /// Returns the type and mutability of `*ty`. . /// . /// The parameter `explicit` indicates if this is an *explicit* dereference. . /// Some types -- notably unsafe ptrs -- can only be dereferenced explicitly. 1,546 ( 0.00%) pub fn builtin_deref(&self, explicit: bool) -> Option> { 9,898 ( 0.00%) match self.kind() { 188 ( 0.00%) Adt(def, _) if def.is_box() => { 2 ( 0.00%) Some(TypeAndMut { ty: self.boxed_ty(), mutbl: hir::Mutability::Not }) . } 5,998 ( 0.00%) Ref(_, ty, mutbl) => Some(TypeAndMut { ty, mutbl: *mutbl }), 60 ( 0.00%) RawPtr(mt) if explicit => Some(*mt), . _ => None, . } 3,092 ( 0.00%) } . . /// Returns the type of `ty[i]`. . pub fn builtin_index(&self) -> Option> { . match self.kind() { . Array(ty, _) | Slice(ty) => Some(ty), . _ => None, . } . } . 18,912 ( 0.00%) pub fn fn_sig(&self, tcx: TyCtxt<'tcx>) -> PolyFnSig<'tcx> { 9,456 ( 0.00%) match self.kind() { 6,996 ( 0.00%) FnDef(def_id, substs) => tcx.fn_sig(*def_id).subst(tcx, substs), 160 ( 0.00%) FnPtr(f) => *f, . Error(_) => { . // ignore errors (#54954) . ty::Binder::dummy(FnSig::fake()) . } . Closure(..) => bug!( . "to get the signature of a closure, use `substs.as_closure().sig()` not `fn_sig()`", . ), . _ => bug!("Ty::fn_sig() called on non-fn type: {:?}", self), . } 21,276 ( 0.00%) } . . #[inline] . pub fn is_fn(&self) -> bool { 1,017 ( 0.00%) matches!(self.kind(), FnDef(..) | FnPtr(_)) . } . . #[inline] . pub fn is_fn_ptr(&self) -> bool { . matches!(self.kind(), FnPtr(_)) . } . . #[inline] . pub fn is_impl_trait(&self) -> bool { . matches!(self.kind(), Opaque(..)) . } . . #[inline] . pub fn ty_adt_def(&self) -> Option<&'tcx AdtDef> { 2,535 ( 0.00%) match self.kind() { . Adt(adt, _) => Some(adt), . _ => None, . } . } . . /// Iterates over tuple fields. . /// Panics when called on anything but a tuple. 122 ( 0.00%) pub fn tuple_fields(&self) -> impl DoubleEndedIterator> { 508 ( 0.00%) match self.kind() { 539 ( 0.00%) Tuple(substs) => substs.iter().map(|field| field.expect_ty()), . _ => bug!("tuple_fields called on non-tuple"), . } 244 ( 0.00%) } . . /// Get the `i`-th element of a tuple. . /// Panics when called on anything but a tuple. 13 ( 0.00%) pub fn tuple_element_ty(&self, i: usize) -> Option> { 26 ( 0.00%) match self.kind() { 26 ( 0.00%) Tuple(substs) => substs.iter().nth(i).map(|field| field.expect_ty()), . _ => bug!("tuple_fields called on non-tuple"), . } 26 ( 0.00%) } . . /// If the type contains variants, returns the valid range of variant indices. . // . // FIXME: This requires the optimized MIR in the case of generators. . #[inline] . pub fn variant_range(&self, tcx: TyCtxt<'tcx>) -> Option> { . match self.kind() { . TyKind::Adt(adt, _) => Some(adt.variant_range()), -- line 2068 ---------------------------------------- -- line 2073 ---------------------------------------- . } . } . . /// If the type contains variants, returns the variant for `variant_index`. . /// Panics if `variant_index` is out of range. . // . // FIXME: This requires the optimized MIR in the case of generators. . #[inline] 820 ( 0.00%) pub fn discriminant_for_variant( . &self, . tcx: TyCtxt<'tcx>, . variant_index: VariantIdx, . ) -> Option> { 2,645 ( 0.00%) match self.kind() { 1,298 ( 0.00%) TyKind::Adt(adt, _) if adt.variants.is_empty() => { . // This can actually happen during CTFE, see . // https://github.com/rust-lang/rust/issues/89765. . None . } 649 ( 0.00%) TyKind::Adt(adt, _) if adt.is_enum() => { . Some(adt.discriminant_for_variant(tcx, variant_index)) . } . TyKind::Generator(def_id, substs, _) => { 228 ( 0.00%) Some(substs.as_generator().discriminant_for_variant(*def_id, tcx, variant_index)) . } . _ => None, . } 656 ( 0.00%) } . . /// Returns the type of the discriminant of this type. 1,900 ( 0.00%) pub fn discriminant_ty(&'tcx self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { 950 ( 0.00%) match self.kind() { 1,480 ( 0.00%) ty::Adt(adt, _) if adt.is_enum() => adt.repr.discr_type().to_ty(tcx), . ty::Generator(_, substs, _) => substs.as_generator().discr_ty(tcx), . . ty::Param(_) | ty::Projection(_) | ty::Opaque(..) | ty::Infer(ty::TyVar(_)) => { . let assoc_items = tcx.associated_item_def_ids( . tcx.require_lang_item(hir::LangItem::DiscriminantKind, None), . ); . tcx.mk_projection(assoc_items[0], tcx.intern_substs(&[self.into()])) . } -- line 2113 ---------------------------------------- -- line 2135 ---------------------------------------- . | ty::Infer(IntVar(_) | FloatVar(_)) => tcx.types.u8, . . ty::Bound(..) . | ty::Placeholder(_) . | ty::Infer(FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => { . bug!("`discriminant_ty` applied to unexpected type: {:?}", self) . } . } 1,520 ( 0.00%) } . . /// Returns the type of metadata for (potentially fat) pointers to this type. 18 ( 0.00%) pub fn ptr_metadata_ty( . &'tcx self, . tcx: TyCtxt<'tcx>, . normalize: impl FnMut(Ty<'tcx>) -> Ty<'tcx>, . ) -> Ty<'tcx> { 18 ( 0.00%) let tail = tcx.struct_tail_with_normalize(self, normalize); 10 ( 0.00%) match tail.kind() { . // Sized types . ty::Infer(ty::IntVar(_) | ty::FloatVar(_)) . | ty::Uint(_) . | ty::Int(_) . | ty::Bool . | ty::Float(_) . | ty::FnDef(..) . | ty::FnPtr(_) -- line 2160 ---------------------------------------- -- line 2170 ---------------------------------------- . | ty::Foreign(..) . // If returned by `struct_tail_without_normalization` this is a unit struct . // without any fields, or not a struct, and therefore is Sized. . | ty::Adt(..) . // If returned by `struct_tail_without_normalization` this is the empty tuple, . // a.k.a. unit type, which is Sized . | ty::Tuple(..) => tcx.types.unit, . 4 ( 0.00%) ty::Str | ty::Slice(_) => tcx.types.usize, . ty::Dynamic(..) => { . let dyn_metadata = tcx.lang_items().dyn_metadata().unwrap(); . tcx.type_of(dyn_metadata).subst(tcx, &[tail.into()]) . }, . . ty::Projection(_) . | ty::Param(_) . | ty::Opaque(..) . | ty::Infer(ty::TyVar(_)) . | ty::Bound(..) . | ty::Placeholder(..) . | ty::Infer(ty::FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => { . bug!("`ptr_metadata_ty` applied to unexpected type: {:?}", tail) . } . } 16 ( 0.00%) } . . /// When we create a closure, we record its kind (i.e., what trait . /// it implements) into its `ClosureSubsts` using a type . /// parameter. This is kind of a phantom type, except that the . /// most convenient thing for us to are the integral types. This . /// function converts such a special type into the closure . /// kind. To go the other way, use . /// `tcx.closure_kind_ty(closure_kind)`. . /// . /// Note that during type checking, we use an inference variable . /// to represent the closure kind, because it has not yet been . /// inferred. Once upvar inference (in `rustc_typeck/src/check/upvar.rs`) . /// is complete, that type variable will be unified. 68 ( 0.00%) pub fn to_opt_closure_kind(&self) -> Option { 136 ( 0.00%) match self.kind() { 136 ( 0.00%) Int(int_ty) => match int_ty { . ty::IntTy::I8 => Some(ty::ClosureKind::Fn), . ty::IntTy::I16 => Some(ty::ClosureKind::FnMut), . ty::IntTy::I32 => Some(ty::ClosureKind::FnOnce), . _ => bug!("cannot convert type `{:?}` to a closure kind", self), . }, . . // "Bound" types appear in canonical queries when the . // closure type is not yet known . Bound(..) | Infer(_) => None, . . Error(_) => Some(ty::ClosureKind::Fn), . . _ => bug!("cannot convert type `{:?}` to a closure kind", self), . } 68 ( 0.00%) } . . /// Fast path helper for testing if a type is `Sized`. . /// . /// Returning true means the type is known to be sized. Returning . /// `false` means nothing -- could be sized, might not be. . /// . /// Note that we could never rely on the fact that a type such as `[_]` is . /// trivially `!Sized` because we could be in a type environment with a . /// bound such as `[_]: Copy`. A function with such a bound obviously never . /// can be called, but that doesn't mean it shouldn't typecheck. This is why . /// this method doesn't return `Option`. 35,514 ( 0.00%) pub fn is_trivially_sized(&self, tcx: TyCtxt<'tcx>) -> bool { 23,676 ( 0.00%) match self.kind() { . ty::Infer(ty::IntVar(_) | ty::FloatVar(_)) . | ty::Uint(_) . | ty::Int(_) . | ty::Bool . | ty::Float(_) . | ty::FnDef(..) . | ty::FnPtr(_) . | ty::RawPtr(..) -- line 2246 ---------------------------------------- -- line 2250 ---------------------------------------- . | ty::GeneratorWitness(..) . | ty::Array(..) . | ty::Closure(..) . | ty::Never . | ty::Error(_) => true, . . ty::Str | ty::Slice(_) | ty::Dynamic(..) | ty::Foreign(..) => false, . 403 ( 0.00%) ty::Tuple(tys) => tys.iter().all(|ty| ty.expect_ty().is_trivially_sized(tcx)), . 4,455 ( 0.00%) ty::Adt(def, _substs) => def.sized_constraint(tcx).is_empty(), . . ty::Projection(_) | ty::Param(_) | ty::Opaque(..) => false, . . ty::Infer(ty::TyVar(_)) => false, . . ty::Bound(..) . | ty::Placeholder(..) . | ty::Infer(ty::FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => { . bug!("`is_trivially_sized` applied to unexpected type: {:?}", self) . } . } 35,514 ( 0.00%) } . } . . /// Extra information about why we ended up with a particular variance. . /// This is only used to add more information to error messages, and . /// has no effect on soundness. While choosing the 'wrong' `VarianceDiagInfo` . /// may lead to confusing notes in error messages, it will never cause . /// a miscompilation or unsoundness. . /// -- line 2280 ---------------------------------------- -- line 2295 ---------------------------------------- . /// (e.g. `0` for `*mut T`, `1` for `MyStruct<'CovariantParam, 'InvariantParam>`) . param_index: u32, . }, . } . . impl<'tcx> VarianceDiagInfo<'tcx> { . /// Mirrors `Variance::xform` - used to 'combine' the existing . /// and new `VarianceDiagInfo`s when our variance changes. 9,080 ( 0.00%) pub fn xform(self, other: VarianceDiagInfo<'tcx>) -> VarianceDiagInfo<'tcx> { . // For now, just use the first `VarianceDiagInfo::Invariant` that we see 13,620 ( 0.00%) match self { . VarianceDiagInfo::None => other, . VarianceDiagInfo::Invariant { .. } => self, . } 4,540 ( 0.00%) } . } 4,088,756 ( 0.33%) -------------------------------------------------------------------------------- -- 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")] 134 ( 0.00%) pub fn from_str_radix(src: &str, radix: u32) -> Result { 67 ( 0.00%) from_str_radix(src, radix) 201 ( 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 { 86,070 ( 0.01%) 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 { 286,366 ( 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 { 239,719 ( 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 { 4,209,059 ( 0.34%) intrinsics::rotate_left(self, n as $SelfT) . } . . /// Shifts the bits to the right by a specified amount, `n`, . /// wrapping the truncated bits to the beginning of the resulting . /// integer. . /// . /// Please note this isn't the same operation as the `>>` shifting operator! . /// -- line 220 ---------------------------------------- -- line 429 ---------------------------------------- . )] . #[doc = concat!("assert_eq!((", stringify!($SelfT), "::MAX - 2).checked_add(3), None);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_checked_int_methods", since = "1.47.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline] 2,685 ( 0.00%) pub const fn checked_add(self, rhs: Self) -> Option { 2,152 ( 0.00%) let (a, b) = self.overflowing_add(rhs); 5,370 ( 0.00%) if unlikely!(b) {None} else {Some(a)} 2,148 ( 0.00%) } . . /// Unchecked integer addition. Computes `self + rhs`, assuming overflow . /// cannot occur. . /// . /// # Safety . /// . /// This results in undefined behavior when . #[doc = concat!("`self + rhs > ", stringify!($SelfT), "::MAX` or `self + rhs < ", stringify!($SelfT), "::MIN`,")] -- line 448 ---------------------------------------- -- 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`. 633,538 ( 0.05%) 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`. 22,795 ( 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 544 ---------------------------------------- . #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".checked_mul(1), Some(5));")] . #[doc = concat!("assert_eq!(", stringify!($SelfT), "::MAX.checked_mul(2), None);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_checked_int_methods", since = "1.47.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline] 5,682 ( 0.00%) pub const fn checked_mul(self, rhs: Self) -> Option { 3,788 ( 0.00%) let (a, b) = self.overflowing_mul(rhs); 9,470 ( 0.00%) if unlikely!(b) {None} else {Some(a)} 3,788 ( 0.00%) } . . /// Unchecked integer multiplication. Computes `self * rhs`, assuming overflow . /// cannot occur. . /// . /// # Safety . /// . /// This results in undefined behavior when . #[doc = concat!("`self * rhs > ", stringify!($SelfT), "::MAX` or `self * rhs < ", stringify!($SelfT), "::MIN`,")] -- line 563 ---------------------------------------- -- line 596 ---------------------------------------- . without modifying the original"] . #[inline] . pub const fn checked_div(self, rhs: Self) -> Option { . if unlikely!(rhs == 0) { . None . } else { . // SAFETY: div by zero has been checked above and unsigned types have no other . // failure modes for division 640 ( 0.00%) Some(unsafe { intrinsics::unchecked_div(self, rhs) }) . } . } . . /// Checked Euclidean division. Computes `self.div_euclid(rhs)`, returning `None` . /// if `rhs == 0`. . /// . /// # Examples . /// -- line 612 ---------------------------------------- -- 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 { 76,091 ( 0.01%) intrinsics::saturating_add(self, rhs) 28 ( 0.00%) } . . /// Saturating addition with a signed integer. Computes `self + rhs`, . /// saturating at the numeric bounds instead of overflowing. . /// . /// # Examples . /// . /// Basic usage: . /// -- line 1052 ---------------------------------------- -- line 1084 ---------------------------------------- . #[doc = concat!("assert_eq!(13", stringify!($SelfT), ".saturating_sub(127), 0);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[rustc_const_stable(feature = "const_saturating_int_methods", since = "1.47.0")] . #[inline(always)] . pub const fn saturating_sub(self, rhs: Self) -> Self { 3,301 ( 0.00%) intrinsics::saturating_sub(self, rhs) . } . . /// Saturating integer multiplication. Computes `self * rhs`, . /// saturating at the numeric bounds instead of overflowing. . /// . /// # Examples . /// . /// Basic usage: -- line 1100 ---------------------------------------- -- line 1175 ---------------------------------------- . #[doc = concat!("assert_eq!(200", stringify!($SelfT), ".wrapping_add(", stringify!($SelfT), "::MAX), 199);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn wrapping_add(self, rhs: Self) -> Self { 1,675,026 ( 0.14%) intrinsics::wrapping_add(self, rhs) . } . . /// Wrapping (modular) addition with a signed integer. Computes . /// `self + rhs`, wrapping around at the boundary of the type. . /// . /// # Examples . /// . /// Basic usage: -- line 1191 ---------------------------------------- -- line 1217 ---------------------------------------- . #[doc = concat!("assert_eq!(100", stringify!($SelfT), ".wrapping_sub(", stringify!($SelfT), "::MAX), 101);")] . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn wrapping_sub(self, rhs: Self) -> Self { 1,066,181 ( 0.09%) intrinsics::wrapping_sub(self, rhs) . } . . /// Wrapping (modular) multiplication. Computes `self * . /// rhs`, wrapping around at the boundary of the type. . /// . /// # Examples . /// . /// Basic usage: -- line 1233 ---------------------------------------- -- line 1240 ---------------------------------------- . /// assert_eq!(25u8.wrapping_mul(12), 44); . /// ``` . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn wrapping_mul(self, rhs: Self) -> Self { 3,483,055 ( 0.28%) intrinsics::wrapping_mul(self, rhs) . } . . /// Wrapping (modular) division. Computes `self / rhs`. . /// Wrapped division on unsigned types is just normal division. . /// There's no way wrapping could ever happen. . /// This function exists, so that all operations . /// are accounted for in the wrapping operations. . /// -- line 1256 ---------------------------------------- -- line 1397 ---------------------------------------- . #[rustc_const_stable(feature = "const_wrapping_math", since = "1.32.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline(always)] . pub const fn wrapping_shl(self, rhs: u32) -> Self { . // SAFETY: the masking by the bitsize of the type ensures that we do not shift . // out of bounds . unsafe { 45 ( 0.00%) intrinsics::unchecked_shl(self, (rhs & ($BITS - 1)) as $SelfT) . } . } . . /// Panic-free bitwise shift-right; yields `self >> mask(rhs)`, . /// where `mask` removes any high-order bits of `rhs` that . /// would cause the shift to exceed the bitwidth of the type. . /// . /// Note that this is *not* the same as a rotate-right; the -- line 1413 ---------------------------------------- -- line 1491 ---------------------------------------- . #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".overflowing_add(2), (7, false));")] . #[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)] 11 ( 0.00%) pub const fn overflowing_add(self, rhs: Self) -> (Self, bool) { 400,253 ( 0.03%) let (a, b) = intrinsics::add_with_overflow(self as $ActualT, rhs as $ActualT); 1,074 ( 0.00%) (a as Self, b) 2,170 ( 0.00%) } . . /// Calculates `self + rhs + carry` without the ability to overflow. . /// . /// Performs "ternary addition" which takes in an extra bit to add, and may return an . /// additional bit of overflow. This allows for chaining together multiple additions . /// to create "big integers" which represent larger values. . /// . #[doc = concat!("This can be thought of as a ", stringify!($BITS), "-bit \"full adder\", in the electronics sense.")] -- line 1510 ---------------------------------------- -- line 1587 ---------------------------------------- . #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".overflowing_sub(2), (3, false));")] . #[doc = concat!("assert_eq!(0", stringify!($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)] 1 ( 0.00%) pub const fn overflowing_sub(self, rhs: Self) -> (Self, bool) { 132,440 ( 0.01%) let (a, b) = intrinsics::sub_with_overflow(self as $ActualT, rhs as $ActualT); . (a as Self, b) 2 ( 0.00%) } . . /// 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. . /// . /// # Examples -- line 1606 ---------------------------------------- -- 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) { 669,408 ( 0.05%) let (a, b) = intrinsics::mul_with_overflow(self as $ActualT, rhs as $ActualT); 1,894 ( 0.00%) (a as Self, b) 3,788 ( 0.00%) } . . /// Calculates the divisor when `self` is divided by `rhs`. . /// . /// Returns a tuple of the divisor along with a boolean indicating . /// whether an arithmetic overflow would occur. Note that for unsigned . /// integers overflow never occurs, so the second value is always . /// `false`. . /// -- line 1692 ---------------------------------------- -- line 1838 ---------------------------------------- . #[doc = concat!("assert_eq!(0x1", stringify!($SelfT), ".overflowing_shl(132), (0x10, 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_shl(self, rhs: u32) -> (Self, bool) { 3 ( 0.00%) (self.wrapping_shl(rhs), (rhs > ($BITS - 1))) . } . . /// Shifts self right by `rhs` bits. . /// . /// Returns a tuple of the shifted version of self along with a boolean . /// indicating whether the shift value was larger than or equal to the . /// number of bits. If the shift value is too large, then value is . /// masked (N-1) where N is the number of bits, and this value is then -- line 1854 ---------------------------------------- -- line 2132 ---------------------------------------- . #[doc = concat!("assert!(16", stringify!($SelfT), ".is_power_of_two());")] . #[doc = concat!("assert!(!10", stringify!($SelfT), ".is_power_of_two());")] . /// ``` . #[must_use] . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_const_stable(feature = "const_is_power_of_two", since = "1.32.0")] . #[inline(always)] . pub const fn is_power_of_two(self) -> bool { 588 ( 0.00%) self.count_ones() == 1 . } . . // Returns one less than next power of two. . // (For 8u8 next power of two is 8u8 and for 6u8 it is 8u8) . // . // 8u8.one_less_than_next_power_of_two() == 7 . // 6u8.one_less_than_next_power_of_two() == 7 . // . // This method cannot overflow, as in the `next_power_of_two` . // overflow cases it instead ends up returning the maximum value . // of the type, and can return 0 for 0. . #[inline] . #[rustc_const_stable(feature = "const_int_pow", since = "1.50.0")] . const fn one_less_than_next_power_of_two(self) -> Self { 4,304 ( 0.00%) if self <= 1 { return 0; } . 9,684 ( 0.00%) let p = self - 1; . // SAFETY: Because `p > 0`, it cannot consist entirely of leading zeros. . // That means the shift is always in-bounds, and some processors . // (such as intel pre-haswell) have more efficient ctlz . // intrinsics when the argument is non-zero. 28,947 ( 0.00%) let z = unsafe { intrinsics::ctlz_nonzero(p) }; 9,677 ( 0.00%) <$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 { 15,008 ( 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 ---------------------------------------- -- line 2264 ---------------------------------------- . #[doc = concat!("let bytes = ", $swap_op, stringify!($SelfT), ".to_le_bytes();")] . #[doc = concat!("assert_eq!(bytes, ", $le_bytes, ");")] . /// ``` . #[stable(feature = "int_to_from_bytes", since = "1.32.0")] . #[rustc_const_stable(feature = "const_int_conversion", since = "1.44.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . #[inline] 10 ( 0.00%) pub const fn to_le_bytes(self) -> [u8; mem::size_of::()] { 8 ( 0.00%) self.to_le().to_ne_bytes() 6 ( 0.00%) } . . /// Return the memory representation of this integer as a byte array in . /// native byte order. . /// . /// As the target platform's native endianness is used, portable code . /// should use [`to_be_bytes`] or [`to_le_bytes`], as appropriate, . /// instead. . /// -- line 2282 ---------------------------------------- -- line 2300 ---------------------------------------- . /// ``` . #[stable(feature = "int_to_from_bytes", since = "1.32.0")] . #[rustc_const_stable(feature = "const_int_conversion", since = "1.44.0")] . #[must_use = "this returns the result of the operation, \ . without modifying the original"] . // SAFETY: const sound because integers are plain old datatypes so we can always . // transmute them to arrays of bytes . #[inline] 30 ( 0.00%) pub const fn to_ne_bytes(self) -> [u8; mem::size_of::()] { . // SAFETY: integers are plain old datatypes so we can always transmute them to . // arrays of bytes 15 ( 0.00%) unsafe { mem::transmute(self) } 45 ( 0.00%) } . . /// Create a native endian integer value from its representation . /// as a byte array in big endian. . /// . #[doc = $from_xe_bytes_doc] . /// . /// # Examples . /// -- line 2320 ---------------------------------------- -- line 2360 ---------------------------------------- . /// *input = rest; . #[doc = concat!(" ", stringify!($SelfT), "::from_le_bytes(int_bytes.try_into().unwrap())")] . /// } . /// ``` . #[stable(feature = "int_to_from_bytes", since = "1.32.0")] . #[rustc_const_stable(feature = "const_int_conversion", since = "1.44.0")] . #[must_use] . #[inline] 8 ( 0.00%) pub const fn from_le_bytes(bytes: [u8; mem::size_of::()]) -> Self { 10 ( 0.00%) Self::from_le(Self::from_ne_bytes(bytes)) 4 ( 0.00%) } . . /// Create a native endian integer value from its memory representation . /// as a byte array in native endianness. . /// . /// As the target platform's native endianness is used, portable code . /// likely wants to use [`from_be_bytes`] or [`from_le_bytes`], as . /// appropriate instead. . /// -- line 2378 ---------------------------------------- -- line 2402 ---------------------------------------- . /// } . /// ``` . #[stable(feature = "int_to_from_bytes", since = "1.32.0")] . #[rustc_const_stable(feature = "const_int_conversion", since = "1.44.0")] . #[must_use] . // SAFETY: const sound because integers are plain old datatypes so we can always . // transmute to them . #[inline] 8 ( 0.00%) pub const fn from_ne_bytes(bytes: [u8; mem::size_of::()]) -> Self { . // SAFETY: integers are plain old datatypes so we can always transmute to them 12 ( 0.00%) unsafe { mem::transmute(bytes) } 4 ( 0.00%) } . . /// New code should prefer to use . #[doc = concat!("[`", stringify!($SelfT), "::MIN", "`] instead.")] . /// . /// Returns the smallest value that can be represented by this integer type. . #[stable(feature = "rust1", since = "1.0.0")] . #[rustc_promotable] . #[inline(always)] -- line 2421 ---------------------------------------- 53,855 ( 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. 14,795 ( 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 { 11,928 ( 0.00%) 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. 127,194 ( 0.01%) self.ptr = unsafe { NonNull::new_unchecked(self.ptr.as_ptr().offset(offset)) }; 1,988 ( 0.00%) old . } 3,976 ( 0.00%) } . . // 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)] . 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`. 1,744 ( 0.00%) self.end = unsafe { self.end.offset(-offset) }; 356 ( 0.00%) self.end . } 356 ( 0.00%) } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl ExactSizeIterator for $name<'_, T> { . #[inline(always)] . fn len(&self) -> usize { 30,918 ( 0.00%) len!(self) 372 ( 0.00%) } . . #[inline(always)] . fn is_empty(&self) -> bool { . is_empty!(self) . } . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a, T> Iterator for $name<'a, T> { . type Item = $elem; . . #[inline] 8,028 ( 0.00%) fn next(&mut self) -> Option<$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 { 85,784 ( 0.01%) assume(!self.ptr.as_ptr().is_null()); 13,380 ( 0.00%) if mem::size_of::() != 0 { 25,091 ( 0.00%) assume(!self.end.is_null()); . } 14,125,660 ( 1.16%) if is_empty!(self) { 688 ( 0.00%) None . } else { 3,976 ( 0.00%) Some(next_unchecked!(self)) . } . } 8,028 ( 0.00%) } . . #[inline] 710 ( 0.00%) fn size_hint(&self) -> (usize, Option) { 353,758 ( 0.03%) let exact = len!(self); 1,278 ( 0.00%) (exact, Some(exact)) 284 ( 0.00%) } . . #[inline] . fn count(self) -> usize { . len!(self) . } . . #[inline] . fn nth(&mut self, n: usize) -> Option<$elem> { 7,684 ( 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() { 997 ( 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, . { 731 ( 0.00%) while let Some(x) = self.next() { 17,931 ( 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] 32 ( 0.00%) fn any(&mut self, mut f: F) -> bool . where . Self: Sized, . F: FnMut(Self::Item) -> bool, . { 105,522 ( 0.01%) while let Some(x) = self.next() { 141,977 ( 0.01%) if f(x) { . return true; . } . } . false 32 ( 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] 145 ( 0.00%) fn find

(&mut self, mut predicate: P) -> Option . where . Self: Sized, . P: FnMut(&Self::Item) -> bool, . { 12,368 ( 0.00%) while let Some(x) = self.next() { 123,261 ( 0.01%) if predicate(&x) { 22 ( 0.00%) return Some(x); . } . } 18 ( 0.00%) None 66,757 ( 0.01%) } . . // We override the default implementation, which uses `try_fold`, . // because this simple implementation generates less LLVM IR and is . // faster to compile. . #[inline] 122 ( 0.00%) fn find_map(&mut self, mut f: F) -> Option . where . Self: Sized, . F: FnMut(Self::Item) -> Option, . { 16,330 ( 0.00%) while let Some(x) = self.next() { 45,753 ( 0.00%) if let Some(y) = f(x) { 7,366 ( 0.00%) return Some(y); . } 5 ( 0.00%) } 8 ( 0.00%) None 1,969 ( 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() { 90,612 ( 0.01%) 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

{ 144 ( 0.00%) let (decompress_len, header_len) = bytes::read_varu64(input); 72 ( 0.00%) if header_len == 0 { . return Err(Error::Header); . } 108 ( 0.00%) if decompress_len > MAX_INPUT_SIZE { . return Err(Error::TooBig { . given: decompress_len as u64, . max: MAX_INPUT_SIZE, . }); . } . Ok(Header { len: header_len, decompress_len: decompress_len as usize }) . } . } -- line 370 ---------------------------------------- -- line 426 ---------------------------------------- . /// This requires reading from the compressed input since the offset is . /// encoded in bytes proceding the tag byte. . fn offset(&self, src: &[u8], s: usize) -> Result { . let num_tag_bytes = self.num_tag_bytes(); . let trailer = . // It is critical for this case to come first, since it is the . // fast path. We really hope that this case gets branch . // predicted. 135,190 ( 0.01%) if s + 4 <= src.len() { . unsafe { . // SAFETY: The conditional above guarantees that . // src[s..s+4] is valid to read from. . let p = src.as_ptr().add(s); . // We use WORD_MASK here to mask out the bits we don't . // need. While we're guaranteed to read 4 valid bytes, . // not all of those bytes are necessarily part of the . // offset. This is the key optimization: we don't need to . // branch on num_tag_bytes. 135,180 ( 0.01%) bytes::loadu_u32_le(p) as usize & WORD_MASK[num_tag_bytes] . } 8 ( 0.00%) } else if num_tag_bytes == 1 { . if s >= src.len() { . return Err(Error::CopyRead { . len: 1, . src_len: (src.len() - s) as u64, . }); . } . src[s] as usize . } else if num_tag_bytes == 2 { 6 ( 0.00%) if s + 1 >= src.len() { . return Err(Error::CopyRead { . len: 2, . src_len: (src.len() - s) as u64, . }); . } . bytes::read_u16_le(&src[s..]) as usize . } else { . return Err(Error::CopyRead { -- line 463 ---------------------------------------- 317,412 ( 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, . { 190,779 ( 0.02%) SESSION_GLOBALS.with(f) . } . . #[inline] . pub fn create_default_session_globals_then(f: impl FnOnce() -> R) -> R { . create_session_globals_then(edition::DEFAULT_EDITION, f) . } . . // If this ever becomes non thread-local, `decode_syntax_context` . // and `decode_expn_id` will need to be updated to handle concurrent . // deserialization. . scoped_tls::scoped_thread_local!(static SESSION_GLOBALS: SessionGlobals); . . // FIXME: We should use this enum or something like it to get rid of the . // use of magic `/rust/1.x/...` paths across the board. 82 ( 0.00%) #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd)] 2,180 ( 0.00%) #[derive(Decodable)] . pub enum RealFileName { 11 ( 0.00%) 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 . local_path: Option, . /// `virtual_name` is the stable path rustc will store internally within -- line 175 ---------------------------------------- -- 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 5,608 ( 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> { 16 ( 0.00%) encoder.emit_enum(|encoder| match *self { . RealFileName::LocalPath(ref local_path) => { 64 ( 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 { 5,668 ( 0.00%) match self { . RealFileName::LocalPath(p) . | RealFileName::Remapped { local_path: _, virtual_name: p } => &p, . } 9 ( 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 { 8 ( 0.00%) match self { . RealFileName::LocalPath(path) . | RealFileName::Remapped { local_path: None, virtual_name: path } . | RealFileName::Remapped { local_path: Some(path), virtual_name: _ } => path, . } . } . 240 ( 0.00%) pub fn to_string_lossy(&self, display_pref: FileNameDisplayPreference) -> Cow<'_, str> { 732 ( 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() . } . } 360 ( 0.00%) } . } . . /// Differentiates between real files and common virtual files. 11,592 ( 0.00%) #[derive(Debug, Eq, PartialEq, Clone, Ord, PartialOrd, Hash)] 13,229 ( 0.00%) #[derive(Decodable, Encodable)] . pub enum FileName { . Real(RealFileName), . /// Call to `quote!`. 3 ( 0.00%) QuoteExpansion(u64), . /// Command line. . Anon(u64), . /// Hack in `src/librustc_ast/parse.rs`. . // FIXME(jseyfried) . MacroExpansion(u64), . ProcMacroSourceCode(u64), . /// Strings provided as `--cfg [cfgspec]` stored in a `crate_cfg`. . CfgSpec(u64), -- line 285 ---------------------------------------- -- line 288 ---------------------------------------- . /// Custom sources for explicit parser calls from plugins and drivers. . Custom(String), . DocTest(PathBuf, isize), . /// Post-substitution inline assembly from LLVM. . InlineAsm(u64), . } . . impl From for FileName { 56 ( 0.00%) fn from(p: PathBuf) -> Self { 16 ( 0.00%) assert!(!p.to_string_lossy().ends_with('>')); 48 ( 0.00%) FileName::Real(RealFileName::LocalPath(p)) 56 ( 0.00%) } . } . 34 ( 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<'_> { 1,896 ( 0.00%) fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { . use FileName::*; 2,844 ( 0.00%) match *self.inner { . Real(ref name) => { 2,844 ( 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, ""), . } 2,370 ( 0.00%) } . } . . impl FileNameDisplay<'_> { 72 ( 0.00%) pub fn to_string_lossy(&self) -> Cow<'_, str> { 54 ( 0.00%) match self.inner { 18 ( 0.00%) FileName::Real(ref inner) => inner.to_string_lossy(self.display_pref), . _ => Cow::from(format!("{}", self)), . } 72 ( 0.00%) } . } . . impl FileName { . pub fn is_real(&self) -> bool { . use FileName::*; 2,964 ( 0.00%) match *self { . Real(_) => true, . Anon(_) . | MacroExpansion(_) . | ProcMacroSourceCode(_) . | CfgSpec(_) . | CliCrateAttr(_) . | Custom(_) . | QuoteExpansion(_) . | DocTest(_, _) . | InlineAsm(_) => false, . } . } . 472 ( 0.00%) pub fn prefer_remapped(&self) -> FileNameDisplay<'_> { . FileNameDisplay { inner: self, display_pref: FileNameDisplayPreference::Remapped } 944 ( 0.00%) } . . // This may include transient local filesystem information. . // Must not be embedded in build outputs. 8 ( 0.00%) pub fn prefer_local(&self) -> FileNameDisplay<'_> { . FileNameDisplay { inner: self, display_pref: FileNameDisplayPreference::Local } 16 ( 0.00%) } . . pub fn display(&self, display_pref: FileNameDisplayPreference) -> FileNameDisplay<'_> { . FileNameDisplay { inner: self, display_pref } . } . . pub fn macro_expansion_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); -- line 375 ---------------------------------------- -- line 383 ---------------------------------------- . } . . pub fn proc_macro_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); . FileName::ProcMacroSourceCode(hasher.finish()) . } . 15 ( 0.00%) pub fn cfg_spec_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); 6 ( 0.00%) FileName::QuoteExpansion(hasher.finish()) 15 ( 0.00%) } . . pub fn cli_crate_attr_source_code(src: &str) -> FileName { . let mut hasher = StableHasher::new(); . src.hash(&mut hasher); . FileName::CliCrateAttr(hasher.finish()) . } . . pub fn doc_test_source_code(path: PathBuf, line: isize) -> FileName { -- line 403 ---------------------------------------- -- line 423 ---------------------------------------- . /// that the length of the span is equal to `span.hi - span.lo`; there may be space in the . /// [`BytePos`] range between files. . /// . /// `SpanData` is public because `Span` uses a thread-local interner and can't be . /// sent to other threads, but some pieces of performance infra run in a separate thread. . /// Using `Span` is generally preferred. . #[derive(Clone, Copy, Hash, PartialEq, Eq)] . pub struct SpanData { 254 ( 0.00%) pub lo: BytePos, 254 ( 0.00%) pub hi: BytePos, . /// Information about where the macro came from, if this piece of . /// code was created by a macro expansion. 759 ( 0.00%) pub ctxt: SyntaxContext, 253 ( 0.00%) pub parent: Option, . } . . // Order spans by position in the file. . impl Ord for SpanData { . fn cmp(&self, other: &Self) -> Ordering { . let SpanData { . lo: s_lo, . hi: s_hi, -- line 444 ---------------------------------------- -- line 485 ---------------------------------------- . } . #[inline] . pub fn with_parent(&self, parent: Option) -> Span { . Span::new(self.lo, self.hi, self.ctxt, parent) . } . /// Returns `true` if this is a dummy span with any hygienic context. . #[inline] . pub fn is_dummy(self) -> bool { 63,221 ( 0.01%) self.lo.0 == 0 && self.hi.0 == 0 . } . /// Returns `true` if `self` fully encloses `other`. . pub fn contains(self, other: Self) -> bool { 273 ( 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 { 17,560 ( 0.00%) fn partial_cmp(&self, rhs: &Self) -> Option { 13,170 ( 0.00%) PartialOrd::partial_cmp(&self.data(), &rhs.data()) 17,560 ( 0.00%) } . } . 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] 14,958 ( 0.00%) pub fn with_lo(self, lo: BytePos) -> Span { . self.data().with_lo(lo) 9,972 ( 0.00%) } . #[inline] 748 ( 0.00%) pub fn hi(self) -> BytePos { . self.data().hi 748 ( 0.00%) } . #[inline] 3,735 ( 0.00%) pub fn with_hi(self, hi: BytePos) -> Span { . self.data().with_hi(hi) 2,490 ( 0.00%) } . #[inline] . pub fn ctxt(self) -> SyntaxContext { . self.data_untracked().ctxt . } . #[inline] 1,695 ( 0.00%) pub fn with_ctxt(self, ctxt: SyntaxContext) -> Span { . self.data_untracked().with_ctxt(ctxt) 1,017 ( 0.00%) } . #[inline] . pub fn parent(self) -> Option { . self.data().parent . } . #[inline] 36 ( 0.00%) pub fn with_parent(self, ctxt: Option) -> Span { . self.data().with_parent(ctxt) 24 ( 0.00%) } . . /// 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. -- line 574 ---------------------------------------- -- line 600 ---------------------------------------- . /// Returns a new span representing an empty span at the beginning of this span. . #[inline] . pub fn shrink_to_lo(self) -> Span { . let span = self.data_untracked(); . span.with_hi(span.lo) . } . /// Returns a new span representing an empty span at the end of this span. . #[inline] 36 ( 0.00%) pub fn shrink_to_hi(self) -> Span { . let span = self.data_untracked(); . span.with_lo(span.hi) 24 ( 0.00%) } . . #[inline] . /// Returns `true` if `hi == lo`. . pub fn is_empty(self) -> bool { . let span = self.data_untracked(); . span.hi == span.lo . } . . /// Returns `self` if `self` is not the dummy span, and `other` otherwise. . pub fn substitute_dummy(self, other: Span) -> Span { . if self.is_dummy() { other } else { self } . } . . /// Returns `true` if `self` fully encloses `other`. 819 ( 0.00%) pub fn contains(self, other: Span) -> bool { . let span = self.data(); . let other = other.data(); . span.contains(other) 546 ( 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`. 630 ( 0.00%) pub fn find_ancestor_inside(mut self, outer: Span) -> Option { 315 ( 0.00%) while !outer.contains(self) { . self = self.parent_callsite()?; . } . Some(self) 693 ( 0.00%) } . . /// Edition of the crate from which this span came. 5,310 ( 0.00%) pub fn edition(self) -> edition::Edition { . self.ctxt().edition() 3,540 ( 0.00%) } . . #[inline] . pub fn rust_2015(self) -> bool { 1,382 ( 0.00%) self.edition() == edition::Edition::Edition2015 . } . . #[inline] . pub fn rust_2018(self) -> bool { 400 ( 0.00%) self.edition() >= edition::Edition::Edition2018 . } . . #[inline] . pub fn rust_2021(self) -> bool { 575 ( 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]`). 465 ( 0.00%) pub fn allows_unstable(self, feature: Symbol) -> bool { 93 ( 0.00%) self.ctxt() . .outer_expn_data() . .allow_internal_unstable . .map_or(false, |features| features.iter().any(|&f| f == feature)) 372 ( 0.00%) } . . /// Checks if this span arises from a compiler desugaring of kind `kind`. 3,724 ( 0.00%) pub fn is_desugaring(self, kind: DesugaringKind) -> bool { 3,192 ( 0.00%) match self.ctxt().outer_expn_data().kind { . ExpnKind::Desugaring(k) => k == kind, . _ => false, . } 2,660 ( 0.00%) } . . /// Returns the compiler desugaring that created this span, or `None` . /// if this span is not from a desugaring. 60 ( 0.00%) pub fn desugaring_kind(self) -> Option { 72 ( 0.00%) match self.ctxt().outer_expn_data().kind { . ExpnKind::Desugaring(k) => Some(k), . _ => None, . } 48 ( 0.00%) } . . /// Checks if a span is "internal" to a macro in which `unsafe` . /// can be used without triggering the `unsafe_code` lint. . // (that is, a macro marked with `#[allow_internal_unsafe]`). . pub fn allows_unsafe(self) -> bool { . self.ctxt().outer_expn_data().allow_internal_unsafe . } . -- line 745 ---------------------------------------- -- line 767 ---------------------------------------- . . /// Returns a `Span` that would enclose both `self` and `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^^^^^^^^ . /// ``` 90,112 ( 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. 16,204 ( 0.00%) if span_data.ctxt != end_data.ctxt { 180 ( 0.00%) if span_data.ctxt == SyntaxContext::root() { . return end; 144 ( 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 }, 56,084 ( 0.00%) if span_data.parent == end_data.parent { span_data.parent } else { None }, . ) 73,728 ( 0.01%) } . . /// Returns a `Span` between the end of `self` to the beginning of `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^ . /// ``` 561 ( 0.00%) pub fn between(self, end: Span) -> Span { . let span = self.data(); . let end = end.data(); . Span::new( . span.hi, . end.lo, . if end.ctxt == SyntaxContext::root() { end.ctxt } else { span.ctxt }, 357 ( 0.00%) if span.parent == end.parent { span.parent } else { None }, . ) 408 ( 0.00%) } . . /// Returns a `Span` from the beginning of `self` until the beginning of `end`. . /// . /// ```text . /// ____ ___ . /// self lorem ipsum end . /// ^^^^^^^^^^^^^^^^^ . /// ``` 539 ( 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. 98 ( 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 }, 343 ( 0.00%) if span_data.parent == end_data.parent { span_data.parent } else { None }, . ) 441 ( 0.00%) } . 187 ( 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, . ) 119 ( 0.00%) } . . /// Equivalent of `Span::def_site` from the proc macro API, . /// except that the location is taken from the `self` span. . pub fn with_def_site_ctxt(self, expn_id: ExpnId) -> Span { 598 ( 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 { 10 ( 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 { 4 ( 0.00%) 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). 3,672 ( 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)) 2,142 ( 0.00%) } . . #[inline] . pub fn apply_mark(self, expn_id: ExpnId, transparency: Transparency) -> Span { . let span = self.data(); 7,902 ( 0.00%) span.with_ctxt(span.ctxt.apply_mark(expn_id, transparency)) . } . . #[inline] . pub fn remove_mark(&mut self) -> ExpnId { . let mut span = self.data(); . let mark = span.ctxt.remove_mark(); . *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark -- line 897 ---------------------------------------- -- line 901 ---------------------------------------- . pub fn adjust(&mut self, expn_id: ExpnId) -> Option { . let mut span = self.data(); . let mark = span.ctxt.adjust(expn_id); . *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark . } . . #[inline] 20,277 ( 0.00%) pub fn normalize_to_macros_2_0_and_adjust(&mut self, expn_id: ExpnId) -> Option { 13,518 ( 0.00%) let mut span = self.data(); 11,065 ( 0.00%) let mark = span.ctxt.normalize_to_macros_2_0_and_adjust(expn_id); 20,277 ( 0.00%) *self = Span::new(span.lo, span.hi, span.ctxt, span.parent); . mark 22,330 ( 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] 15,488 ( 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()) 13,552 ( 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 214 ( 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 { 540 ( 0.00%) MultiSpan { primary_spans: vec![primary_span], span_labels: vec![] } . } . . pub fn from_spans(mut vec: Vec) -> MultiSpan { . vec.sort(); 50 ( 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() 51 ( 0.00%) } . . /// Returns all primary spans. . pub fn primary_spans(&self) -> &[Span] { . &self.primary_spans 11 ( 0.00%) } . . /// Returns `true` if any of the primary spans are displayable. . pub fn has_primary_spans(&self) -> bool { . self.primary_spans.iter().any(|sp| !sp.is_dummy()) . } . . /// Returns `true` if this contains only a dummy primary span with any hygienic context. . pub fn is_dummy(&self) -> bool { -- line 1084 ---------------------------------------- -- 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 { 540 ( 0.00%) fn from(span: Span) -> MultiSpan { . MultiSpan::from_span(span) 540 ( 0.00%) } . } . . impl From> for MultiSpan { 50 ( 0.00%) fn from(spans: Vec) -> MultiSpan { 40 ( 0.00%) MultiSpan::from_spans(spans) 50 ( 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`. 352 ( 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 { 620 ( 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; . 176 ( 0.00%) fn sub(self, rhs: BytePos) -> Self { 620 ( 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), . } 528 ( 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, . } . 24 ( 0.00%) #[derive(PartialEq, Eq, Clone, Debug)] . pub enum ExternalSource { . /// No external source has to be loaded, since the `SourceFile` represents a local crate. . Unneeded, . Foreign { . kind: ExternalSourceKind, . /// This SourceFile's byte-offset within the source_map of its original crate. . original_start_pos: BytePos, . /// The end of this SourceFile within the source_map of its original crate. -- line 1246 ---------------------------------------- -- line 1257 ---------------------------------------- . AbsentOk, . /// A failed attempt has been made to load the external source. . AbsentErr, . Unneeded, . } . . impl ExternalSource { . pub fn get_source(&self) -> Option<&Lrc> { 332 ( 0.00%) match self { . ExternalSource::Foreign { kind: ExternalSourceKind::Present(ref src), .. } => Some(src), . _ => None, . } . } . } . . #[derive(Debug)] . pub struct OffsetOverflowError; . 2,198 ( 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. 48 ( 0.00%) #[derive(Copy, Clone, PartialEq, Eq, Debug)] 4,396 ( 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 => { 33 ( 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 1324 ---------------------------------------- . . /// Check if the stored hash matches the hash of the string. . pub fn matches(&self, src: &str) -> bool { . Self::new(self.kind, src) == *self . } . . /// The bytes of the hash. . pub fn hash_bytes(&self) -> &[u8] { 53 ( 0.00%) let len = self.hash_len(); 53 ( 0.00%) &self.value[..len] 53 ( 0.00%) } . . fn hash_len(&self) -> usize { 139 ( 0.00%) match self.kind { . SourceFileHashAlgorithm::Md5 => 16, . SourceFileHashAlgorithm::Sha1 => 20, . SourceFileHashAlgorithm::Sha256 => 32, . } . } . } . . /// A single source in the [`SourceMap`]. 464 ( 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. 8 ( 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. 8 ( 0.00%) pub name_hash: u128, . /// Indicates which crate this `SourceFile` was imported from. 8 ( 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)?; . 32 ( 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 { 16 ( 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); . 16 ( 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))?; 24 ( 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))?; 88 ( 0.00%) s.emit_struct_field("cnum", false, |s| self.cnum.encode(s)) . }) . } . } . . impl Decodable for SourceFile { 9,891 ( 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); 1,099 ( 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 { 1,180,766 ( 0.10%) 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)); 2,198 ( 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)); 12,089 ( 0.00%) SourceFile { 8,792 ( 0.00%) name, . start_pos, . end_pos, . src: None, 4,396 ( 0.00%) src_hash, . // Unused - the metadata decoder will construct . // a new SourceFile, filling in `external_src` properly . external_src: Lock::new(ExternalSource::Unneeded), 4,396 ( 0.00%) lines, 4,396 ( 0.00%) multibyte_chars, 4,396 ( 0.00%) non_narrow_chars, 4,396 ( 0.00%) normalized_pos, . name_hash, . cnum, . } . }) 9,891 ( 0.00%) } . } . . impl fmt::Debug for SourceFile { . fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { . write!(fmt, "SourceFile({:?})", self.name) . } . } . . impl SourceFile { 121 ( 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); 33 ( 0.00%) let normalized_pos = normalize_src(&mut src, start_pos); . . let name_hash = { . let mut hasher: StableHasher = StableHasher::new(); 22 ( 0.00%) name.hash(&mut hasher); . hasher.finish::() . }; 22 ( 0.00%) let end_pos = start_pos.to_usize() + src.len(); 33 ( 0.00%) assert!(end_pos <= u32::MAX as usize); . 132 ( 0.00%) let (lines, multibyte_chars, non_narrow_chars) = 22 ( 0.00%) analyze_source_file::analyze_source_file(&src, start_pos); . 187 ( 0.00%) SourceFile { . name, . src: Some(Lrc::new(src)), 121 ( 0.00%) src_hash, . external_src: Lock::new(ExternalSource::Unneeded), . start_pos, . end_pos: Pos::from_usize(end_pos), 44 ( 0.00%) lines, 44 ( 0.00%) multibyte_chars, 44 ( 0.00%) non_narrow_chars, 44 ( 0.00%) normalized_pos, . name_hash, . cnum: LOCAL_CRATE, . } 99 ( 0.00%) } . . /// Returns the `BytePos` of the beginning of the current line. 5,188 ( 0.00%) pub fn line_begin_pos(&self, pos: BytePos) -> BytePos { . let line_index = self.lookup_line(pos).unwrap(); 2,594 ( 0.00%) self.lines[line_index] 5,188 ( 0.00%) } . . /// 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. 952 ( 0.00%) pub fn add_external_src(&self, get_src: F) -> bool . where . F: FnOnce() -> Option, . { 136 ( 0.00%) if matches!( 272 ( 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 { 136 ( 0.00%) self.src.is_some() || self.external_src.borrow().get_source().is_some() . } 1,224 ( 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() 1,482 ( 0.00%) } . . pub fn is_imported(&self) -> bool { . self.src.is_none() 9,570 ( 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 { 8,514 ( 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 { 7,901 ( 0.00%) if self.is_empty() { . return self.start_pos..self.end_pos; . } . 5,410 ( 0.00%) assert!(line_index < self.lines.len()); 7,533 ( 0.00%) if line_index == (self.lines.len() - 1) { 75 ( 0.00%) self.lines[line_index]..self.end_pos . } else { 4,964 ( 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`. 150 ( 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; . 450 ( 0.00%) for mbc in self.multibyte_chars.iter() { . debug!("{}-byte char at {:?}", mbc.bytes, mbc.pos); 8 ( 0.00%) 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; . } . } . 900 ( 0.00%) assert!(self.start_pos.to_u32() + total_extra_bytes <= bpos.to_u32()); 750 ( 0.00%) CharPos(bpos.to_usize() - self.start_pos.to_usize() - total_extra_bytes as usize) 300 ( 0.00%) } . . /// Looks up the file's (1-based) line number and (0-based `CharPos`) column offset, for a . /// given `BytePos`. 525 ( 0.00%) pub fn lookup_file_pos(&self, pos: BytePos) -> (usize, CharPos) { 150 ( 0.00%) let chpos = self.bytepos_to_file_charpos(pos); 67 ( 0.00%) match self.lookup_line(pos) { . Some(a) => { . let line = a + 1; // Line numbers start at 1 75 ( 0.00%) let linebpos = self.lines[a]; 150 ( 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); 75 ( 0.00%) assert!(chpos >= linechpos); . (line, col) . } . None => (0, chpos), . } 600 ( 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`. 600 ( 0.00%) pub fn lookup_file_pos_with_col_display(&self, pos: BytePos) -> (usize, CharPos, usize) { 225 ( 0.00%) let (line, col_or_chpos) = self.lookup_file_pos(pos); 150 ( 0.00%) if line > 0 { . let col = col_or_chpos; 75 ( 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(); 375 ( 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) . } 525 ( 0.00%) } . } . . /// Normalizes the source code and records the normalizations. 110 ( 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 99 ( 0.00%) } . . /// Removes UTF-8 BOM, if any. . fn remove_bom(src: &mut String, normalized_pos: &mut Vec) { 11 ( 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) { 11 ( 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])* 15,292 ( 0.00%) $vis struct $ident($inner_vis $inner_ty); . . impl Pos for $ident { . #[inline(always)] . fn from_usize(n: usize) -> $ident { 798 ( 0.00%) $ident(n as $inner_ty) . } . . #[inline(always)] . fn to_usize(&self) -> usize { 20,707 ( 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 { 2,251,231 ( 0.18%) $ident(self.0 + rhs.0) . } . } . . impl Sub for $ident { . type Output = $ident; . . #[inline(always)] . fn sub(self, rhs: $ident) -> $ident { 1,353,619 ( 0.11%) $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 { 199,618 ( 0.02%) BytePos(d.read_u32()) . } . } . . // _____________________________________________________________________________ . // Loc, SourceFileAndLine, SourceFileAndBytePos . // . . /// A source code location used for error reporting. -- line 1962 ---------------------------------------- -- line 2042 ---------------------------------------- . /// Range inside of a `Span` used for diagnostics when we only have access to relative positions. . #[derive(Copy, Clone, PartialEq, Eq, Debug)] . pub struct InnerSpan { . pub start: usize, . pub end: usize, . } . . impl InnerSpan { 98 ( 0.00%) pub fn new(start: usize, end: usize) -> InnerSpan { . InnerSpan { start, end } 49 ( 0.00%) } . } . . /// Requirements for a `StableHashingContext` to be used in this crate. . /// . /// This is a hack to allow using the [`HashStable_Generic`] derive macro . /// instead of implementing everything in rustc_middle. . pub trait HashStableContext { . fn def_path_hash(&self, def_id: DefId) -> DefPathHash; -- line 2060 ---------------------------------------- -- line 2079 ---------------------------------------- . /// offsets into the `SourceMap`). Instead, we hash the (file name, line, column) . /// triple, which stays the same even if the containing `SourceFile` has moved . /// within the `SourceMap`. . /// . /// Also note that we are hashing byte offsets for the column, not unicode . /// codepoint offsets. For the purpose of the hash that's sufficient. . /// Also, hashing filenames is expensive so we avoid doing it twice when the . /// span starts and ends in the same file, which is almost always the case. 119,889 ( 0.01%) 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; . 23,146 ( 0.00%) if !ctx.hash_spans() { . return; . } . 96,743 ( 0.01%) let span = self.data_untracked(); 33,324 ( 0.00%) span.ctxt.hash_stable(ctx, hasher); 51,381 ( 0.00%) span.parent.hash_stable(ctx, hasher); . 34,572 ( 0.00%) if span.is_dummy() { . Hash::hash(&TAG_INVALID_SPAN, hasher); . return; . } . 33,618 ( 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. 67,236 ( 0.01%) let (file, line_lo, col_lo, line_hi, col_hi) = match ctx.span_data_to_lines_and_cols(&span) . { 33,618 ( 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. . 16,809 ( 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; 16,809 ( 0.00%) let len = (span.hi - span.lo).0; . Hash::hash(&col_line, hasher); . Hash::hash(&len, hasher); 137,016 ( 0.01%) } . } 1,916,624 ( 0.16%) -------------------------------------------------------------------------------- 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 ./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/multiarch/strcmp-avx2.S -------------------------------------------------------------------------------- Ir -------------------------------------------------------------------------------- 227,398,839 (18.59%) events annotated

(&mut self, mut predicate: P) -> Option where . P: FnMut(Self::Item) -> bool, . Self: Sized + ExactSizeIterator + DoubleEndedIterator . { . let n = len!(self); . let mut i = n; 12,125 ( 0.00%) while let Some(x) = self.next_back() { 186,771 ( 0.02%) i -= 1; 159,756 ( 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 . } . . #[doc(hidden)] 184 ( 0.00%) unsafe fn __iterator_get_unchecked(&mut self, idx: usize) -> Self::Item { . // SAFETY: the caller must guarantee that `i` is in bounds of . // the underlying slice, so `i` cannot overflow an `isize`, and . // 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` 26,736 ( 0.00%) unsafe { & $( $mut_ )? * self.ptr.as_ptr().add(idx) } 92 ( 0.00%) } . . $($extra)* . } . . #[stable(feature = "rust1", since = "1.0.0")] . impl<'a, T> DoubleEndedIterator for $name<'a, T> { . #[inline] 534 ( 0.00%) fn next_back(&mut self) -> Option<$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_back_unchecked!` is safe since we check if the iterator is . // empty first. . unsafe { 1,234 ( 0.00%) assume(!self.ptr.as_ptr().is_null()); 890 ( 0.00%) if mem::size_of::() != 0 { 963 ( 0.00%) assume(!self.end.is_null()); . } 306,375 ( 0.03%) if is_empty!(self) { . None . } else { 356 ( 0.00%) Some(next_back_unchecked!(self)) . } . } 534 ( 0.00%) } . . #[inline] . fn nth_back(&mut self, n: usize) -> Option<$elem> { . if n >= len!(self) { . // This iterator is now empty. . self.end = self.ptr.as_ptr(); . return None; . } -- line 375 ---------------------------------------- 2,285,490 ( 0.19%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_middle/src/ty/subst.rs -------------------------------------------------------------------------------- Ir -- line 22 ---------------------------------------- . . /// An entity in the Rust type system, which can be one of . /// several kinds (types, lifetimes, and consts). . /// To reduce memory usage, a `GenericArg` is an interned pointer, . /// with the lowest 2 bits being reserved for a tag to . /// indicate the type (`Ty`, `Region`, or `Const`) it points to. . #[derive(Copy, Clone, PartialEq, Eq, Hash)] . pub struct GenericArg<'tcx> { 150,698 ( 0.01%) ptr: NonZeroUsize, 337,581 ( 0.03%) marker: PhantomData<(Ty<'tcx>, ty::Region<'tcx>, &'tcx ty::Const<'tcx>)>, . } . . const TAG_MASK: usize = 0b11; . const TYPE_TAG: usize = 0b00; . const REGION_TAG: usize = 0b01; . const CONST_TAG: usize = 0b10; . 307,120 ( 0.03%) #[derive(Debug, TyEncodable, TyDecodable, PartialEq, Eq, PartialOrd, Ord, HashStable)] . pub enum GenericArgKind<'tcx> { . Lifetime(ty::Region<'tcx>), . Type(Ty<'tcx>), . Const(&'tcx ty::Const<'tcx>), . } . . impl<'tcx> GenericArgKind<'tcx> { 79,137 ( 0.01%) fn pack(self) -> GenericArg<'tcx> { 79,137 ( 0.01%) let (tag, ptr) = match self { . GenericArgKind::Lifetime(lt) => { . // Ensure we can use the tag bits. . assert_eq!(mem::align_of_val(lt) & TAG_MASK, 0); . (REGION_TAG, lt as *const _ as usize) . } . GenericArgKind::Type(ty) => { . // Ensure we can use the tag bits. . assert_eq!(mem::align_of_val(ty) & TAG_MASK, 0); -- line 56 ---------------------------------------- -- line 58 ---------------------------------------- . } . GenericArgKind::Const(ct) => { . // Ensure we can use the tag bits. . assert_eq!(mem::align_of_val(ct) & TAG_MASK, 0); . (CONST_TAG, ct as *const _ as usize) . } . }; . 112,531 ( 0.01%) GenericArg { ptr: unsafe { NonZeroUsize::new_unchecked(ptr | tag) }, marker: PhantomData } 79,137 ( 0.01%) } . } . . impl<'tcx> fmt::Debug for GenericArg<'tcx> { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . match self.unpack() { . GenericArgKind::Lifetime(lt) => lt.fmt(f), . GenericArgKind::Type(ty) => ty.fmt(f), . GenericArgKind::Const(ct) => ct.fmt(f), . } . } . } . . impl<'tcx> Ord for GenericArg<'tcx> { 3 ( 0.00%) fn cmp(&self, other: &GenericArg<'_>) -> Ordering { 2 ( 0.00%) self.unpack().cmp(&other.unpack()) . } . } . . impl<'tcx> PartialOrd for GenericArg<'tcx> { . fn partial_cmp(&self, other: &GenericArg<'_>) -> Option { . Some(self.cmp(&other)) . } . } . . impl<'tcx> From> for GenericArg<'tcx> { 24,396 ( 0.00%) fn from(r: ty::Region<'tcx>) -> GenericArg<'tcx> { . GenericArgKind::Lifetime(r).pack() 24,396 ( 0.00%) } . } . . impl<'tcx> From> for GenericArg<'tcx> { 144,943 ( 0.01%) fn from(ty: Ty<'tcx>) -> GenericArg<'tcx> { . GenericArgKind::Type(ty).pack() 144,943 ( 0.01%) } . } . . impl<'tcx> From<&'tcx ty::Const<'tcx>> for GenericArg<'tcx> { 1 ( 0.00%) fn from(c: &'tcx ty::Const<'tcx>) -> GenericArg<'tcx> { . GenericArgKind::Const(c).pack() 1 ( 0.00%) } . } . . impl<'tcx> GenericArg<'tcx> { . #[inline] . pub fn unpack(self) -> GenericArgKind<'tcx> { . let ptr = self.ptr.get(); . unsafe { 1,977,878 ( 0.16%) match ptr & TAG_MASK { 20,469 ( 0.00%) REGION_TAG => GenericArgKind::Lifetime(&*((ptr & !TAG_MASK) as *const _)), 469,164 ( 0.04%) TYPE_TAG => GenericArgKind::Type(&*((ptr & !TAG_MASK) as *const _)), 86 ( 0.00%) CONST_TAG => GenericArgKind::Const(&*((ptr & !TAG_MASK) as *const _)), . _ => intrinsics::unreachable(), . } . } . } . . /// Unpack the `GenericArg` as a type when it is known certainly to be a type. . /// This is true in cases where `Substs` is used in places where the kinds are known . /// to be limited (e.g. in tuples, where the only parameters are type parameters). . pub fn expect_ty(self) -> Ty<'tcx> { . match self.unpack() { . GenericArgKind::Type(ty) => ty, . _ => bug!("expected a type, but found another kind"), . } 5,614 ( 0.00%) } . . /// Unpack the `GenericArg` as a const when it is known certainly to be a const. . pub fn expect_const(self) -> &'tcx ty::Const<'tcx> { . match self.unpack() { . GenericArgKind::Const(c) => c, . _ => bug!("expected a const, but found another kind"), . } . } -- line 140 ---------------------------------------- -- line 170 ---------------------------------------- . GenericArgKind::Type(ty) => ty.visit_with(visitor), . GenericArgKind::Const(ct) => ct.visit_with(visitor), . } . } . } . . impl<'tcx, E: TyEncoder<'tcx>> Encodable for GenericArg<'tcx> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { 2,919 ( 0.00%) self.unpack().encode(e) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for GenericArg<'tcx> { 395,685 ( 0.03%) fn decode(d: &mut D) -> GenericArg<'tcx> { 395,685 ( 0.03%) GenericArgKind::decode(d).pack() . } . } . . /// A substitution mapping generic parameters to new values. . pub type InternalSubsts<'tcx> = List>; . . pub type SubstsRef<'tcx> = &'tcx InternalSubsts<'tcx>; . . impl<'a, 'tcx> InternalSubsts<'tcx> { . /// Interpret these substitutions as the substitutions of a closure type. . /// Closure substitutions have a particular structure controlled by the . /// compiler that encodes information like the signature and closure kind; . /// see `ty::ClosureSubsts` struct for more comments. 425 ( 0.00%) pub fn as_closure(&'a self) -> ClosureSubsts<'a> { . ClosureSubsts { substs: self } 425 ( 0.00%) } . . /// Interpret these substitutions as the substitutions of a generator type. . /// Generator substitutions have a particular structure controlled by the . /// compiler that encodes information like the signature and generator kind; . /// see `ty::GeneratorSubsts` struct for more comments. . pub fn as_generator(&'tcx self) -> GeneratorSubsts<'tcx> { . GeneratorSubsts { substs: self } . } -- line 208 ---------------------------------------- -- line 211 ---------------------------------------- . /// Inline const substitutions have a particular structure controlled by the . /// compiler that encodes information like the inferred type; . /// see `ty::InlineConstSubsts` struct for more comments. . pub fn as_inline_const(&'tcx self) -> InlineConstSubsts<'tcx> { . InlineConstSubsts { substs: self } . } . . /// Creates an `InternalSubsts` that maps each generic parameter to itself. 5,870 ( 0.00%) pub fn identity_for_item(tcx: TyCtxt<'tcx>, def_id: DefId) -> SubstsRef<'tcx> { 2,108 ( 0.00%) Self::for_item(tcx, def_id, |param, _| tcx.mk_param_from_def(param)) 5,283 ( 0.00%) } . . /// Creates an `InternalSubsts` for generic parameter definitions, . /// by calling closures to obtain each kind. . /// The closures get to observe the `InternalSubsts` as they're . /// being built, which can be used to correctly . /// substitute defaults of generic parameters. 33,424 ( 0.00%) pub fn for_item(tcx: TyCtxt<'tcx>, def_id: DefId, mut mk_kind: F) -> SubstsRef<'tcx> . where . F: FnMut(&ty::GenericParamDef, &[GenericArg<'tcx>]) -> GenericArg<'tcx>, . { . let defs = tcx.generics_of(def_id); . let count = defs.count(); . let mut substs = SmallVec::with_capacity(count); 13,030 ( 0.00%) Self::fill_item(&mut substs, tcx, defs, &mut mk_kind); 7,254 ( 0.00%) tcx.intern_substs(&substs) 33,597 ( 0.00%) } . . pub fn extend_to(&self, tcx: TyCtxt<'tcx>, def_id: DefId, mut mk_kind: F) -> SubstsRef<'tcx> . where . F: FnMut(&ty::GenericParamDef, &[GenericArg<'tcx>]) -> GenericArg<'tcx>, . { . Self::for_item(tcx, def_id, |param, substs| { . self.get(param.index as usize).cloned().unwrap_or_else(|| mk_kind(param, substs)) . }) . } . 51,742 ( 0.00%) pub fn fill_item( . substs: &mut SmallVec<[GenericArg<'tcx>; 8]>, . tcx: TyCtxt<'tcx>, . defs: &ty::Generics, . mk_kind: &mut F, . ) where . F: FnMut(&ty::GenericParamDef, &[GenericArg<'tcx>]) -> GenericArg<'tcx>, . { 21,470 ( 0.00%) if let Some(def_id) = defs.parent { . let parent_defs = tcx.generics_of(def_id); 3,857 ( 0.00%) Self::fill_item(substs, tcx, parent_defs, mk_kind); . } . Self::fill_single(substs, defs, mk_kind) 41,056 ( 0.00%) } . 352 ( 0.00%) pub fn fill_single( . substs: &mut SmallVec<[GenericArg<'tcx>; 8]>, . defs: &ty::Generics, . mk_kind: &mut F, . ) where . F: FnMut(&ty::GenericParamDef, &[GenericArg<'tcx>]) -> GenericArg<'tcx>, . { . substs.reserve(defs.params.len()); . for param in &defs.params { 13 ( 0.00%) let kind = mk_kind(param, substs); 28,271 ( 0.00%) assert_eq!(param.index as usize, substs.len()); . substs.push(kind); . } 352 ( 0.00%) } . . #[inline] . pub fn types(&'a self) -> impl DoubleEndedIterator> + 'a { . self.iter() . .filter_map(|k| if let GenericArgKind::Type(ty) = k.unpack() { Some(ty) } else { None }) . } . . #[inline] -- line 284 ---------------------------------------- -- line 302 ---------------------------------------- . self.iter().filter_map(|k| match k.unpack() { . GenericArgKind::Lifetime(_) => None, . generic => Some(generic), . }) . } . . #[inline] . pub fn type_at(&self, i: usize) -> Ty<'tcx> { 92,250 ( 0.01%) if let GenericArgKind::Type(ty) = self[i].unpack() { . ty . } else { . bug!("expected type for param #{} in {:?}", i, self); . } . } . . #[inline] . pub fn region_at(&self, i: usize) -> ty::Region<'tcx> { -- line 318 ---------------------------------------- -- line 350 ---------------------------------------- . /// impl X for U { fn f() {} } . /// ``` . /// . /// * If `self` is `[Self, S, T]`: the identity substs of `f` in the trait. . /// * If `source_ancestor` is the def_id of the trait. . /// * If `target_substs` is `[U]`, the substs for the impl. . /// * Then we will return `[U, T]`, the subst for `f` in the impl that . /// are needed for it to match the trait. 6,636 ( 0.00%) pub fn rebase_onto( . &self, . tcx: TyCtxt<'tcx>, . source_ancestor: DefId, . target_substs: SubstsRef<'tcx>, . ) -> SubstsRef<'tcx> { . let defs = tcx.generics_of(source_ancestor); 1,896 ( 0.00%) tcx.mk_substs(target_substs.iter().chain(self.iter().skip(defs.params.len()))) 7,584 ( 0.00%) } . 122 ( 0.00%) pub fn truncate_to(&self, tcx: TyCtxt<'tcx>, generics: &ty::Generics) -> SubstsRef<'tcx> { . tcx.mk_substs(self.iter().take(generics.count())) 244 ( 0.00%) } . } . . impl<'tcx> TypeFoldable<'tcx> for SubstsRef<'tcx> { 15,043 ( 0.00%) fn try_super_fold_with>( . self, . folder: &mut F, . ) -> Result { . // This code is hot enough that it's worth specializing for the most . // common length lists, to avoid the overhead of `SmallVec` creation. . // The match arms are in order of frequency. The 1, 2, and 0 cases are . // typically hit in 90--99.99% of cases. When folding doesn't change . // the substs, it's faster to reuse the existing substs rather than . // calling `intern_substs`. 519,606 ( 0.04%) match self.len() { . 1 => { 121,355 ( 0.01%) let param0 = self[0].try_fold_with(folder)?; 351,011 ( 0.03%) if param0 == self[0] { Ok(self) } else { Ok(folder.tcx().intern_substs(&[param0])) } . } . 2 => { 33,325 ( 0.00%) let param0 = self[0].try_fold_with(folder)?; 70,635 ( 0.01%) let param1 = self[1].try_fold_with(folder)?; 67,483 ( 0.01%) if param0 == self[0] && param1 == self[1] { . Ok(self) . } else { 53,678 ( 0.00%) Ok(folder.tcx().intern_substs(&[param0, param1])) . } . } . 0 => Ok(self), . _ => { . let params: SmallVec<[_; 8]> = 9,779 ( 0.00%) self.iter().map(|k| k.try_fold_with(folder)).collect::>()?; 714 ( 0.00%) if params[..] == self[..] { . Ok(self) . } else { 1,555 ( 0.00%) Ok(folder.tcx().intern_substs(¶ms)) . } . } . } 27,287 ( 0.00%) } . . fn super_visit_with>(&self, visitor: &mut V) -> ControlFlow { 90,696 ( 0.01%) self.iter().try_for_each(|t| t.visit_with(visitor)) . } . } . . /////////////////////////////////////////////////////////////////////////// . // Public trait `Subst` . // . // Just call `foo.subst(tcx, substs)` to perform a substitution across . // `foo`. Or use `foo.subst_spanned(tcx, substs, Some(span))` when -- line 420 ---------------------------------------- -- line 435 ---------------------------------------- . . impl<'tcx, T: TypeFoldable<'tcx>> Subst<'tcx> for T { . fn subst_spanned( . self, . tcx: TyCtxt<'tcx>, . substs: &[GenericArg<'tcx>], . span: Option, . ) -> T { 266,176 ( 0.02%) let mut folder = SubstFolder { tcx, substs, span, binders_passed: 0 }; . self.fold_with(&mut folder) . } . } . . /////////////////////////////////////////////////////////////////////////// . // The actual substitution engine itself is a type folder. . . struct SubstFolder<'a, 'tcx> { -- line 451 ---------------------------------------- -- line 456 ---------------------------------------- . span: Option, . . /// Number of region binders we have passed through while doing the substitution . binders_passed: u32, . } . . impl<'a, 'tcx> TypeFolder<'tcx> for SubstFolder<'a, 'tcx> { . fn tcx<'b>(&'b self) -> TyCtxt<'tcx> { 42,829 ( 0.00%) self.tcx . } . . fn fold_binder>( . &mut self, . t: ty::Binder<'tcx, T>, . ) -> ty::Binder<'tcx, T> { 50,544 ( 0.00%) self.binders_passed += 1; 12,451 ( 0.00%) let t = t.super_fold_with(self); 50,544 ( 0.00%) self.binders_passed -= 1; . t . } . 48,636 ( 0.00%) fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { . // Note: This routine only handles regions that are bound on . // type declarations and other outer declarations, not those . // bound in *fn types*. Region substitution of the bound . // regions that appear in a function signature is done using . // the specialized routine `ty::replace_late_regions()`. 16,212 ( 0.00%) match *r { 9,592 ( 0.00%) ty::ReEarlyBound(data) => { 9,592 ( 0.00%) let rk = self.substs.get(data.index as usize).map(|k| k.unpack()); . match rk { 4,796 ( 0.00%) Some(GenericArgKind::Lifetime(lt)) => self.shift_region_through_binders(lt), . _ => { . let span = self.span.unwrap_or(DUMMY_SP); . let msg = format!( . "Region parameter out of range \ . when substituting in region {} (index={})", . data.name, data.index . ); . span_bug!(span, "{}", msg); . } . } . } . _ => r, . } 56,742 ( 0.00%) } . 221,148 ( 0.02%) fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx> { 73,716 ( 0.01%) if !t.needs_subst() { . return t; . } . 111,610 ( 0.01%) match *t.kind() { 173,195 ( 0.01%) ty::Param(p) => self.ty_for_param(p, t), 126,996 ( 0.01%) _ => t.super_fold_with(self), . } 262,750 ( 0.02%) } . 5,495 ( 0.00%) fn fold_const(&mut self, c: &'tcx ty::Const<'tcx>) -> &'tcx ty::Const<'tcx> { 1,575 ( 0.00%) if let ty::ConstKind::Param(p) = c.val { . self.const_for_param(p, c) . } else { 7,056 ( 0.00%) c.super_fold_with(self) . } 8 ( 0.00%) } . . #[inline] . fn fold_mir_const(&mut self, c: mir::ConstantKind<'tcx>) -> mir::ConstantKind<'tcx> { . c.super_fold_with(self) . } . } . . impl<'a, 'tcx> SubstFolder<'a, 'tcx> { . fn ty_for_param(&self, p: ty::ParamTy, source_ty: Ty<'tcx>) -> Ty<'tcx> { . // Look up the type in the substitutions. It really should be in there. 69,278 ( 0.01%) let opt_ty = self.substs.get(p.index as usize).map(|k| k.unpack()); . let ty = match opt_ty { . Some(GenericArgKind::Type(ty)) => ty, . Some(kind) => { . let span = self.span.unwrap_or(DUMMY_SP); . span_bug!( . span, . "expected type for `{:?}` ({:?}/{}) but found {:?} \ . when substituting, substs={:?}", -- line 539 ---------------------------------------- -- line 562 ---------------------------------------- . } . . fn const_for_param( . &self, . p: ParamConst, . source_ct: &'tcx ty::Const<'tcx>, . ) -> &'tcx ty::Const<'tcx> { . // Look up the const in the substitutions. It really should be in there. 2 ( 0.00%) let opt_ct = self.substs.get(p.index as usize).map(|k| k.unpack()); . let ct = match opt_ct { . Some(GenericArgKind::Const(ct)) => ct, . Some(kind) => { . let span = self.span.unwrap_or(DUMMY_SP); . span_bug!( . span, . "expected const for `{:?}` ({:?}/{}) but found {:?} \ . when substituting substs={:?}", -- line 578 ---------------------------------------- -- line 645 ---------------------------------------- . fn shift_vars_through_binders>(&self, val: T) -> T { . debug!( . "shift_vars(val={:?}, binders_passed={:?}, has_escaping_bound_vars={:?})", . val, . self.binders_passed, . val.has_escaping_bound_vars() . ); . 120,905 ( 0.01%) if self.binders_passed == 0 || !val.has_escaping_bound_vars() { . return val; . } . . let result = ty::fold::shift_vars(self.tcx(), val, self.binders_passed); . debug!("shift_vars: shifted result = {:?}", result); . . result . } . . fn shift_region_through_binders(&self, region: ty::Region<'tcx>) -> ty::Region<'tcx> { 11,829 ( 0.00%) if self.binders_passed == 0 || !region.has_escaping_bound_vars() { . return region; . } . ty::fold::shift_region(self.tcx, region, self.binders_passed) . } . } . . /// Stores the user-given substs to reach some fully qualified path . /// (e.g., `::Item` or `::Item`). . #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] 1,814 ( 0.00%) #[derive(HashStable, TypeFoldable, Lift)] . pub struct UserSubsts<'tcx> { . /// The substitutions for the item as given by the user. . pub substs: SubstsRef<'tcx>, . . /// The self type, in the case of a `::Item` path (when applied . /// to an inherent impl). See `UserSelfTy` below. 559 ( 0.00%) pub user_self_ty: Option>, . } . . /// Specifies the user-given self type. In the case of a path that . /// refers to a member in an inherent impl, this self type is . /// sometimes needed to constrain the type parameters on the impl. For . /// example, in this code: . /// . /// ``` -- line 689 ---------------------------------------- -- line 696 ---------------------------------------- . /// self type `Foo`. Then we can instantiate the parameters of . /// the impl (with the substs from `UserSubsts`) and apply those to . /// the self type, giving `Foo`. Finally, we unify that with . /// the self type here, which contains `?A` to be `&'static u32` . #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] . #[derive(HashStable, TypeFoldable, Lift)] . pub struct UserSelfTy<'tcx> { . pub impl_def_id: DefId, 228 ( 0.00%) pub self_ty: Ty<'tcx>, . } 784,827 ( 0.06%) -------------------------------------------------------------------------------- -- 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 { 10,346 ( 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 = $enc.data.len(); . -- line 40 ---------------------------------------- -- line 67 ---------------------------------------- . . #[inline] . fn emit_unit(&mut self) -> EncodeResult { . Ok(()) . } . . #[inline] . fn emit_usize(&mut self, v: usize) -> EncodeResult { 344,207 ( 0.03%) write_leb128!(self, v, usize, write_usize_leb128) . } . . #[inline] . fn emit_u128(&mut self, v: u128) -> EncodeResult { 4,942 ( 0.00%) write_leb128!(self, v, u128, write_u128_leb128) . } . . #[inline] . fn emit_u64(&mut self, v: u64) -> EncodeResult { 3,136 ( 0.00%) write_leb128!(self, v, u64, write_u64_leb128) . } . . #[inline] . fn emit_u32(&mut self, v: u32) -> EncodeResult { 318,283 ( 0.03%) write_leb128!(self, v, u32, write_u32_leb128) . } . . #[inline] . fn emit_u16(&mut self, v: u16) -> EncodeResult { . self.data.extend_from_slice(&v.to_le_bytes()); . Ok(()) . } . -- line 98 ---------------------------------------- -- line 131 ---------------------------------------- . #[inline] . fn emit_i8(&mut self, v: i8) -> EncodeResult { . let as_u8: u8 = unsafe { std::mem::transmute(v) }; . self.emit_u8(as_u8) . } . . #[inline] . fn emit_bool(&mut self, v: bool) -> EncodeResult { 5,001 ( 0.00%) self.emit_u8(if v { 1 } else { 0 }) . } . . #[inline] . fn emit_f64(&mut self, v: f64) -> EncodeResult { . let as_u64: u64 = v.to_bits(); . self.emit_u64(as_u64) . } . -- line 147 ---------------------------------------- -- line 549 ---------------------------------------- . #[inline] . pub fn advance(&mut self, bytes: usize) { . self.position += bytes; . } . . #[inline] . pub fn read_raw_bytes(&mut self, bytes: usize) -> &'a [u8] { . let start = self.position; 91 ( 0.00%) self.position += bytes; 91 ( 0.00%) &self.data[start..self.position] . } . } . . macro_rules! read_leb128 { . ($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 { 1,935 ( 0.00%) read_leb128!(self, read_u128_leb128) . } . . #[inline] . fn read_u64(&mut self) -> u64 { 13,043 ( 0.00%) read_leb128!(self, read_u64_leb128) . } . . #[inline] 90,564 ( 0.01%) fn read_u32(&mut self) -> u32 { 455,597 ( 0.04%) read_leb128!(self, read_u32_leb128) 181,128 ( 0.01%) } . . #[inline] . fn read_u16(&mut self) -> u16 { 594,839 ( 0.05%) let bytes = [self.data[self.position], self.data[self.position + 1]]; 84,977 ( 0.01%) let value = u16::from_le_bytes(bytes); 170,280 ( 0.01%) self.position += 2; . value . } . . #[inline] . fn read_u8(&mut self) -> u8 { 3,010,539 ( 0.25%) let value = self.data[self.position]; 611,411 ( 0.05%) self.position += 1; . value . } . . #[inline] 753,010 ( 0.06%) fn read_usize(&mut self) -> usize { 753,066 ( 0.06%) read_leb128!(self, read_usize_leb128) 1,506,020 ( 0.12%) } . . #[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(); 30,114 ( 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> { 102,225 ( 0.01%) let len = self.read_usize(); 498,432 ( 0.04%) let sentinel = self.data[self.position + len]; 124,650 ( 0.01%) assert!(sentinel == STR_SENTINEL); . let s = unsafe { . std::str::from_utf8_unchecked(&self.data[self.position..self.position + len]) . }; 311,625 ( 0.03%) self.position += len + 1; 118,833 ( 0.01%) Cow::Borrowed(s) . } . . #[inline] . fn read_raw_bytes_into(&mut self, s: &mut [u8]) { 1,583 ( 0.00%) let start = self.position; 8,144 ( 0.00%) self.position += s.len(); 1,583 ( 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 ---------------------------------------- 1,541,143 ( 0.13%) -------------------------------------------------------------------------------- -- 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 . } . 13,248 ( 0.00%) fn decoder(self, pos: usize) -> DecodeContext<'a, 'tcx> { 4,416 ( 0.00%) let tcx = self.tcx(); 626,550 ( 0.05%) DecodeContext { 67,164 ( 0.01%) opaque: opaque::Decoder::new(self.blob(), pos), 4,416 ( 0.00%) cdata: self.cdata(), . blob: self.blob(), 28,438 ( 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() 59,688 ( 0.00%) .map(|cdata| cdata.cdata.alloc_decoding_state.new_decoding_session()), . } 13,248 ( 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 { 114,117 ( 0.01%) fn decode>(self, metadata: M) -> T { 59,611 ( 0.00%) let mut dcx = metadata.decoder(self.position.get()); 181,137 ( 0.01%) dcx.lazy_state = LazyState::NodeStart(self.position); 50,228 ( 0.00%) T::decode(&mut dcx) 145,668 ( 0.01%) } . } . . impl<'a: 'x, 'tcx: 'x, 'x, T: Decodable>> Lazy<[T]> { . fn decode>( . self, . metadata: M, . ) -> impl ExactSizeIterator + Captures<'a> + Captures<'tcx> + 'x { 875 ( 0.00%) let mut dcx = metadata.decoder(self.position.get()); 250 ( 0.00%) dcx.lazy_state = LazyState::NodeStart(self.position); 122,063 ( 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 { 265,812 ( 0.02%) if cnum == LOCAL_CRATE { self.cdata().cnum } else { self.cdata().cnum_map[cnum] } . } . 105,531 ( 0.01%) fn read_lazy_with_meta(&mut self, meta: T::Meta) -> Lazy { . let distance = self.read_usize(); 102,967 ( 0.01%) let position = match self.lazy_state { . LazyState::NoNode => bug!("read_lazy_with_meta: outside of a metadata node"), 13,724 ( 0.00%) LazyState::NodeStart(start) => { . let start = start.get(); 27,448 ( 0.00%) assert!(distance <= start); . start - distance . } 37,077 ( 0.00%) LazyState::Previous(last_pos) => last_pos.get() + distance, . }; 52,166 ( 0.00%) self.lazy_state = LazyState::Previous(NonZeroUsize::new(position).unwrap()); . Lazy::from_position_and_meta(NonZeroUsize::new(position).unwrap(), meta) 105,531 ( 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 { 517,345 ( 0.04%) self.opaque.data[self.opaque.position()] . } . . #[inline] . fn position(&self) -> usize { . self.opaque.position() . } . 480,214 ( 0.04%) fn cached_ty_for_shorthand(&mut self, shorthand: usize, or_insert_with: F) -> Ty<'tcx> . where . F: FnOnce(&mut Self) -> Ty<'tcx>, . { 68,602 ( 0.01%) let tcx = self.tcx(); . 68,602 ( 0.01%) let key = ty::CReaderCacheKey { cnum: Some(self.cdata().cnum), pos: shorthand }; . 230,144 ( 0.02%) if let Some(&ty) = tcx.ty_rcache.borrow().get(&key) { . return ty; . } . 11,066 ( 0.00%) let ty = or_insert_with(self); . tcx.ty_rcache.borrow_mut().insert(key, ty); . ty 617,418 ( 0.05%) } . . 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); 57,500 ( 0.00%) self.opaque = old_opaque; 11,500 ( 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 { 190,226 ( 0.02%) let cnum = CrateNum::from_u32(d.read_u32()); . d.map_encoded_cnum_to_current(cnum) . } . } . . impl<'a, 'tcx> Decodable> for DefIndex { 536 ( 0.00%) fn decode(d: &mut DecodeContext<'a, 'tcx>) -> DefIndex { 306,283 ( 0.03%) DefIndex::from_u32(d.read_u32()) 1,072 ( 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 { 131,396 ( 0.01%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> SyntaxContext { 32,849 ( 0.00%) let cdata = decoder.cdata(); 32,849 ( 0.00%) let sess = decoder.sess.unwrap(); 65,698 ( 0.01%) let cname = cdata.root.name; . rustc_span::hygiene::decode_syntax_context(decoder, &cdata.hygiene_context, |_, id| { . debug!("SpecializedDecoder: decoding {}", id); 2,236 ( 0.00%) cdata . .root . .syntax_contexts . .get(cdata, id) . .unwrap_or_else(|| panic!("Missing SyntaxContext {:?} for crate {:?}", id, cname)) . .decode((cdata, sess)) . }) 164,245 ( 0.01%) } . } . . impl<'a, 'tcx> Decodable> for ExpnId { 12,467 ( 0.00%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> ExpnId { 1,781 ( 0.00%) let local_cdata = decoder.cdata(); 1,781 ( 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); 604 ( 0.00%) let crate_data = if cnum == local_cdata.cnum { . local_cdata . } else { . local_cdata.cstore.get_crate_data(cnum) . }; 3,020 ( 0.00%) let expn_data = crate_data . .root . .expn_data . .get(crate_data, index) . .unwrap() . .decode((crate_data, sess)); 3,020 ( 0.00%) let expn_hash = crate_data . .root . .expn_hashes . .get(crate_data, index) . .unwrap() . .decode((crate_data, sess)); 6,040 ( 0.00%) (expn_data, expn_hash) . }); . expn_id 14,248 ( 0.00%) } . } . . impl<'a, 'tcx> Decodable> for Span { 249,376 ( 0.02%) fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Span { 31,172 ( 0.00%) let ctxt = SyntaxContext::decode(decoder); . let tag = u8::decode(decoder); . 62,344 ( 0.01%) 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; . 93,162 ( 0.01%) let Some(sess) = decoder.sess else { . bug!("Cannot decode Span without Session.") . }; . . // There are two possibilities here: . // 1. This is a 'local span', which is located inside a `SourceFile` . // that came from this crate. In this case, we use the source map data . // encoded in this crate. This branch should be taken nearly all of the time. . // 2. This is a 'foreign span', which is located inside a `SourceFile` -- line 476 ---------------------------------------- -- line 492 ---------------------------------------- . // a transitive dependency. . // . // When we encode a foreign span, we adjust its 'lo' and 'high' values . // to be based on the *foreign* crate (e.g. crate C), not the crate . // we are writing metadata for (e.g. crate B). This allows us to . // treat the 'local' and 'foreign' cases almost identically during deserialization: . // we can call `imported_source_files` for the proper crate, and binary search . // through the returned slice using our span. 68,598 ( 0.01%) let imported_source_files = if tag == TAG_VALID_SPAN_LOCAL { . decoder.cdata().imported_source_files(sess) . } else { . // When we encode a proc-macro crate, all `Span`s should be encoded . // with `TAG_VALID_SPAN_LOCAL` 1,083 ( 0.00%) if decoder.cdata().root.is_proc_macro_crate() { . // Decode `CrateNum` as u32 - using `CrateNum::decode` will ICE . // since we don't have `cnum_map` populated. . let cnum = u32::decode(decoder); . panic!( . "Decoding of crate {:?} tried to access proc-macro dep {:?}", . decoder.cdata().root.name, . cnum . ); -- line 513 ---------------------------------------- -- line 518 ---------------------------------------- . "SpecializedDecoder::specialized_decode: loading source files from cnum {:?}", . cnum . ); . . // Decoding 'foreign' spans should be rare enough that it's . // not worth it to maintain a per-CrateNum cache for `last_source_file_index`. . // We just set it to 0, to ensure that we don't try to access something out . // of bounds for our initial 'guess' 2,166 ( 0.00%) decoder.last_source_file_index = 0; . 1,083 ( 0.00%) let foreign_data = decoder.cdata().cstore.get_crate_data(cnum); . foreign_data.imported_source_files(sess) . }; . . let source_file = { . // Optimize for the case that most spans within a translated item . // originate from the same source_file. 93,162 ( 0.01%) let last_source_file = &imported_source_files[decoder.last_source_file_index]; . 124,053 ( 0.01%) if lo >= last_source_file.original_start_pos && lo <= last_source_file.original_end_pos . { . last_source_file . } else { . let index = imported_source_files . .binary_search_by_key(&lo, |source_file| source_file.original_start_pos) 12,970 ( 0.00%) .unwrap_or_else(|index| index - 1); . . // Don't try to cache the index for foreign spans, . // as this would require a map from CrateNums to indices 6,490 ( 0.00%) if tag == TAG_VALID_SPAN_LOCAL { 6,003 ( 0.00%) decoder.last_source_file_index = index; . } 12,980 ( 0.00%) &imported_source_files[index] . } . }; . . // Make sure our binary search above is correct. . debug_assert!( . lo >= source_file.original_start_pos && lo <= source_file.original_end_pos, . "Bad binary search: lo={:?} source_file.original_start_pos={:?} source_file.original_end_pos={:?}", . lo, -- line 558 ---------------------------------------- -- line 565 ---------------------------------------- . hi >= source_file.original_start_pos && hi <= source_file.original_end_pos, . "Bad binary search: hi={:?} source_file.original_start_pos={:?} source_file.original_end_pos={:?}", . hi, . source_file.original_start_pos, . source_file.original_end_pos . ); . . let lo = 124,216 ( 0.01%) (lo + source_file.translated_source_file.start_pos) - source_file.original_start_pos; . let hi = . (hi + source_file.translated_source_file.start_pos) - source_file.original_start_pos; . . // Do not try to decode parent for foreign spans. . Span::new(lo, hi, ctxt, None) 280,548 ( 0.02%) } . } . . impl<'a, 'tcx> Decodable> for &'tcx [thir::abstract_const::Node<'tcx>] { . fn decode(d: &mut DecodeContext<'a, 'tcx>) -> Self { . ty::codec::RefDecodable::decode(d) . } . } . -- line 587 ---------------------------------------- -- line 590 ---------------------------------------- . ty::codec::RefDecodable::decode(d) . } . } . . impl<'a, 'tcx, T: Decodable>> Decodable> . for Lazy . { . fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self { 25,682 ( 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(); 34,296 ( 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(); 47,489 ( 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) . } . 843 ( 0.00%) crate fn get_root(&self) -> CrateRoot<'tcx> { 281 ( 0.00%) let slice = &self.blob()[..]; . let offset = METADATA_HEADER.len(); 1,405 ( 0.00%) let pos = (((slice[offset + 0] as u32) << 24) 562 ( 0.00%) | ((slice[offset + 1] as u32) << 16) 1,124 ( 0.00%) | ((slice[offset + 2] as u32) << 8) 843 ( 0.00%) | ((slice[offset + 3] as u32) << 0)) as usize; . Lazy::>::from_position(NonZeroUsize::new(pos).unwrap()).decode(self) 1,405 ( 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 { 175 ( 0.00%) self.proc_macro_data.is_some() . } . . crate fn name(&self) -> Symbol { 14 ( 0.00%) self.name . } . . crate fn hash(&self) -> Svh { 91 ( 0.00%) self.hash . } . . crate fn stable_crate_id(&self) -> StableCrateId { 203 ( 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> { 168 ( 0.00%) self.crate_deps.decode(metadata) . } . } . . impl<'a, 'tcx> CrateMetadataRef<'a> { 350 ( 0.00%) 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'. 100 ( 0.00%) let pos = self . .root . .proc_macro_data . .as_ref() . .unwrap() . .macros . .decode(self) . .position(|i| i == id) . .unwrap(); 200 ( 0.00%) &self.raw_proc_macros.unwrap()[pos] 450 ( 0.00%) } . 48,279 ( 0.00%) fn opt_item_ident(self, item_index: DefIndex, sess: &Session) -> Option { 36,212 ( 0.00%) let name = self.def_key(item_index).disambiguated_data.data.get_opt_name()?; 22,505 ( 0.00%) let span = match self.root.tables.ident_span.get(self, item_index) { . Some(lazy_span) => lazy_span.decode((self, sess)), . None => { . // FIXME: this weird case of a name with no span is specific to `extern crate` . // items, which are supposed to be treated like `use` items and only be encoded . // to metadata as `Export`s, return `None` because that's what all the callers . // expect in this case. 216 ( 0.00%) assert_eq!(self.def_kind(item_index), DefKind::ExternCrate); . return None; . } . }; . Some(Ident::new(name, span)) 61,886 ( 0.01%) } . 501 ( 0.00%) fn item_ident(self, item_index: DefIndex, sess: &Session) -> Ident { 9,091 ( 0.00%) self.opt_item_ident(item_index, sess).expect("no encoded ident for item") 1,002 ( 0.00%) } . . fn maybe_kind(self, item_id: DefIndex) -> Option { 25,604 ( 0.00%) self.root.tables.kind.get(self, item_id).map(|k| k.decode(self)) . } . 102,416 ( 0.01%) 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, . ) . }) 76,812 ( 0.01%) } . 17,045 ( 0.00%) fn def_kind(self, item_id: DefIndex) -> DefKind { 13,770 ( 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, . ) . }) 9,740 ( 0.00%) } . 4,509 ( 0.00%) fn get_span(self, index: DefIndex, sess: &Session) -> Span { 8,129 ( 0.00%) self.root . .tables . .span . .get(self, index) . .unwrap_or_else(|| panic!("Missing span for {:?}", index)) . .decode((self, sess)) 2,505 ( 0.00%) } . . fn load_proc_macro(self, id: DefIndex, sess: &Session) -> SyntaxExtension { 32 ( 0.00%) let (name, kind, helper_attrs) = match *self.raw_proc_macro(id) { 20 ( 0.00%) ProcMacro::CustomDerive { trait_name, attributes, client } => { . let helper_attrs = . attributes.iter().cloned().map(Symbol::intern).collect::>(); . ( . trait_name, . SyntaxExtensionKind::Derive(Box::new(ProcMacroDerive { client })), 12 ( 0.00%) helper_attrs, . ) . } . ProcMacro::Attr { name, client } => { . (name, SyntaxExtensionKind::Attr(Box::new(AttrProcMacro { client })), Vec::new()) . } . ProcMacro::Bang { name, client } => { . (name, SyntaxExtensionKind::Bang(Box::new(BangProcMacro { client })), Vec::new()) . } . }; . 10 ( 0.00%) let attrs: Vec<_> = self.get_item_attrs(id, sess).collect(); 24 ( 0.00%) SyntaxExtension::new( . sess, 10 ( 0.00%) kind, . self.get_span(id, sess), 8 ( 0.00%) helper_attrs, 6 ( 0.00%) self.root.edition, 2 ( 0.00%) Symbol::intern(name), . &attrs, . ) . } . 715 ( 0.00%) fn get_trait_def(self, item_id: DefIndex, sess: &Session) -> ty::TraitDef { 220 ( 0.00%) match self.kind(item_id) { 55 ( 0.00%) EntryKind::Trait(data) => { 330 ( 0.00%) let data = data.decode((self, sess)); 880 ( 0.00%) ty::TraitDef::new( . self.local_def_id(item_id), 110 ( 0.00%) data.unsafety, 110 ( 0.00%) data.paren_sugar, 110 ( 0.00%) data.has_auto_impl, 110 ( 0.00%) data.is_marker, 55 ( 0.00%) data.skip_array_during_method_dispatch, 55 ( 0.00%) data.specialization_kind, 220 ( 0.00%) self.def_path_hash(item_id), 55 ( 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"), . } 495 ( 0.00%) } . 3,951 ( 0.00%) fn get_variant( . self, . kind: &EntryKind, . index: DefIndex, . parent_did: DefId, . sess: &Session, . ) -> ty::VariantDef { 1,756 ( 0.00%) let data = match kind { . EntryKind::Variant(data) | EntryKind::Struct(data, _) | EntryKind::Union(data, _) => { 2,195 ( 0.00%) data.decode(self) . } . _ => bug!(), . }; . 1,268 ( 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 }; 878 ( 0.00%) let ctor_did = data.ctor.map(|index| self.local_def_id(index)); . 9,658 ( 0.00%) ty::VariantDef::new( . self.item_ident(index, sess).name, . variant_did, . ctor_did, 1,756 ( 0.00%) data.discr, 2,634 ( 0.00%) self.root . .tables . .children . .get(self, index) . .unwrap_or_else(Lazy::empty) . .decode(self) . .map(|index| ty::FieldDef { 525 ( 0.00%) did: self.local_def_id(index), 1,050 ( 0.00%) name: self.item_ident(index, sess).name, 1,050 ( 0.00%) vis: self.get_visibility(index), . }) . .collect(), . data.ctor_kind, . adt_kind, . parent_did, . false, 439 ( 0.00%) data.is_non_exhaustive, . ) 3,951 ( 0.00%) } . 3,525 ( 0.00%) fn get_adt_def(self, item_id: DefIndex, tcx: TyCtxt<'tcx>) -> &'tcx ty::AdtDef { 940 ( 0.00%) let kind = self.kind(item_id); 470 ( 0.00%) let did = self.local_def_id(item_id); . 1,095 ( 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 { 205 ( 0.00%) self.root . .tables . .children . .get(self, item_id) . .unwrap_or_else(Lazy::empty) . .decode(self) 4,165 ( 0.00%) .map(|index| self.get_variant(&self.kind(index), index, did, tcx.sess)) . .collect() . } else { 1,552 ( 0.00%) std::iter::once(self.get_variant(&kind, item_id, did, tcx.sess)).collect() . }; . 3,495 ( 0.00%) tcx.alloc_adt_def(did, adt_kind, variants, repr) 1,645 ( 0.00%) } . . fn get_explicit_predicates( . self, . item_id: DefIndex, . tcx: TyCtxt<'tcx>, . ) -> ty::GenericPredicates<'tcx> { 3,565 ( 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)] { 3,565 ( 0.00%) self.root . .tables . .inferred_outlives . .get(self, item_id) 36 ( 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> { 270 ( 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)] { 130 ( 0.00%) self.root . .tables . .explicit_item_bounds . .get(self, item_id) 100 ( 0.00%) .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 { 4,547 ( 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> { 16,035 ( 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 { 650 ( 0.00%) self.root.tables.stability.get(self, id).map(|stab| stab.decode(self)) . } . . fn get_const_stability(self, id: DefIndex) -> Option { 15 ( 0.00%) self.root.tables.const_stability.get(self, id).map(|stab| stab.decode(self)) . } . . fn get_deprecation(self, id: DefIndex) -> Option { 845 ( 0.00%) self.root.tables.deprecation.get(self, id).map(|depr| depr.decode(self)) . } . 210 ( 0.00%) fn get_visibility(self, id: DefIndex) -> ty::Visibility { 9,471 ( 0.00%) self.root.tables.visibility.get(self, id).unwrap().decode(self) 140 ( 0.00%) } . . fn get_impl_data(self, id: DefIndex) -> ImplData { 59,736 ( 0.00%) match self.kind(id) { 49,780 ( 0.00%) EntryKind::Impl(data) => data.decode(self), . _ => bug!(), . } . } . . fn get_parent_impl(self, id: DefIndex) -> Option { 29,178 ( 0.00%) self.get_impl_data(id).parent_impl . } . . fn get_impl_polarity(self, id: DefIndex) -> ty::ImplPolarity { 170 ( 0.00%) self.get_impl_data(id).polarity . } . . fn get_impl_defaultness(self, id: DefIndex) -> hir::Defaultness { 43 ( 0.00%) self.get_impl_data(id).defaultness . } . . fn get_impl_constness(self, id: DefIndex) -> hir::Constness { 17 ( 0.00%) self.get_impl_data(id).constness . } . . fn get_trait_item_def_id(self, id: DefIndex) -> Option { 5,030 ( 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> { 117,791 ( 0.01%) 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 { 3,090 ( 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)] { 273 ( 0.00%) tcx.arena.alloc_from_iter( 182 ( 0.00%) self.root . .lang_items . .decode(self) 564 ( 0.00%) .map(|(def_index, index)| (self.local_def_id(def_index), index)), . ) . } . . /// Iterates over the diagnostic items in the given crate. . fn get_diagnostic_items(self) -> DiagnosticItems { . let mut id_to_name = FxHashMap::default(); 182 ( 0.00%) let name_to_id = self . .root . .diagnostic_items . .decode(self) . .map(|(name, def_index)| { 130 ( 0.00%) let id = self.local_def_id(def_index); 130 ( 0.00%) id_to_name.insert(id, name); . (name, id) . }) . .collect(); 819 ( 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, . ) { 324 ( 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. 1 ( 0.00%) if id == CRATE_DEF_INDEX { 15 ( 0.00%) for def_index in data.macros.decode(self) { 144 ( 0.00%) 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), . ); . let ident = self.item_ident(def_index, sess); . callback(ModChild { . ident, . res, -- line 1083 ---------------------------------------- -- line 1085 ---------------------------------------- . span: ident.span, . }); . } . } . return; . } . . // Iterate over all children. 640 ( 0.00%) if let Some(children) = self.root.tables.children.get(self, id) { 1,280 ( 0.00%) for child_index in children.decode((self, sess)) { 12,126 ( 0.00%) if let Some(ident) = self.opt_item_ident(child_index, sess) { 2,139 ( 0.00%) let kind = self.def_kind(child_index); 1,426 ( 0.00%) if matches!(kind, DefKind::Macro(..)) { . // FIXME: Macros are currently encoded twice, once as items and once as . // reexports. We ignore the items here and only use the reexports. . continue; . } . let def_id = self.local_def_id(child_index); . let res = Res::Def(kind, def_id); . let vis = self.get_visibility(child_index); . let span = self.get_span(child_index, sess); . . callback(ModChild { ident, res, vis, span }); . . // For non-re-export structs and variants add their constructors to children. . // Re-export lists automatically contain constructors when necessary. 2,694 ( 0.00%) match kind { . DefKind::Struct => { 40 ( 0.00%) if let Some((ctor_def_id, ctor_kind)) = . self.get_ctor_def_id_and_kind(child_index) . { . let ctor_res = . Res::Def(DefKind::Ctor(CtorOf::Struct, ctor_kind), ctor_def_id); . let vis = self.get_visibility(ctor_def_id.index); . callback(ModChild { ident, res: ctor_res, vis, span }); . } . } . DefKind::Variant => { . // Braced variants, unlike structs, generate unusable names in . // value namespace, they are reserved for possible future use. . // It's ok to use the variant's id as a ctor id since an . // error will be reported on any use of such resolution anyway. 39 ( 0.00%) let (ctor_def_id, ctor_kind) = self . .get_ctor_def_id_and_kind(child_index) . .unwrap_or((def_id, CtorKind::Fictive)); . let ctor_res = . Res::Def(DefKind::Ctor(CtorOf::Variant, ctor_kind), ctor_def_id); . let mut vis = self.get_visibility(ctor_def_id.index); 13 ( 0.00%) if ctor_def_id == def_id && vis.is_public() { . // For non-exhaustive variants lower the constructor visibility to . // within the crate. We only need this for fictive constructors, . // for other constructors correct visibilities . // were already encoded in metadata. . let mut attrs = self.get_item_attrs(def_id.index, sess); . if attrs.any(|item| item.has_name(sym::non_exhaustive)) { . let crate_def_id = self.local_def_id(CRATE_DEF_INDEX); . vis = ty::Visibility::Restricted(crate_def_id); -- line 1141 ---------------------------------------- -- line 1144 ---------------------------------------- . callback(ModChild { ident, res: ctor_res, vis, span }); . } . _ => {} . } . } . } . } . 784 ( 0.00%) match self.kind(id) { 76 ( 0.00%) EntryKind::Mod(exports) => { 2,234 ( 0.00%) for exp in exports.decode((self, sess)) { . callback(exp); . } . } . EntryKind::Enum(..) | EntryKind::Trait(..) => {} . _ => bug!("`for_each_module_child` is called on a non-module: {:?}", self.def_kind(id)), . } . } . . fn is_ctfe_mir_available(self, id: DefIndex) -> bool { 100 ( 0.00%) self.root.tables.mir_for_ctfe.get(self, id).is_some() . } . . fn is_item_mir_available(self, id: DefIndex) -> bool { 332 ( 0.00%) self.root.tables.mir.get(self, id).is_some() . } . . fn module_expansion(self, id: DefIndex, sess: &Session) -> ExpnId { 3,990 ( 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> { 445 ( 0.00%) self.root . .tables . .mir . .get(self, id) . .unwrap_or_else(|| { . bug!("get_optimized_mir: missing MIR for `{:?}`", self.local_def_id(id)) . }) . .decode((self, tcx)) . } . . fn get_mir_for_ctfe(self, tcx: TyCtxt<'tcx>, id: DefIndex) -> Body<'tcx> { 125 ( 0.00%) self.root . .tables . .mir_for_ctfe . .get(self, id) . .unwrap_or_else(|| { . bug!("get_mir_for_ctfe: missing MIR for `{:?}`", self.local_def_id(id)) . }) . .decode((self, tcx)) . } -- line 1200 ---------------------------------------- -- line 1227 ---------------------------------------- . .get(self, id) . .unwrap_or_else(|| { . bug!("get_promoted_mir: missing MIR for `{:?}`", self.local_def_id(id)) . }) . .decode((self, tcx)) . } . . fn mir_const_qualif(self, id: DefIndex) -> mir::ConstQualifs { 8 ( 0.00%) match self.kind(id) { . EntryKind::AnonConst(qualif, _) . | EntryKind::Const(qualif, _) . | EntryKind::AssocConst( . AssocContainer::ImplDefault . | AssocContainer::ImplFinal . | AssocContainer::TraitWithDefault, . qualif, . _, . ) => qualif, . _ => bug!("mir_const_qualif: unexpected kind"), . } . } . . fn get_fn_has_self_parameter(self, id: DefIndex) -> bool { 725 ( 0.00%) match self.kind(id) { 580 ( 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] { 1,232 ( 0.00%) if let Some(children) = self.root.tables.children.get(self, id) { 528 ( 0.00%) tcx.arena.alloc_from_iter( 176 ( 0.00%) children.decode((self, tcx.sess)).map(|child_index| self.local_def_id(child_index)), . ) . } else { . &[] . } . } . 9,984 ( 0.00%) fn get_associated_item(self, id: DefIndex, sess: &Session) -> ty::AssocItem { 5,824 ( 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); . 5,998 ( 0.00%) let (kind, container, has_self) = match self.kind(id) { . EntryKind::AssocConst(container, _, _) => (ty::AssocKind::Const, container, false), 745 ( 0.00%) EntryKind::AssocFn(data) => { . let data = data.decode(self); 5,215 ( 0.00%) (ty::AssocKind::Fn, data.container, data.has_self) . } 174 ( 0.00%) EntryKind::AssocType(container) => (ty::AssocKind::Type, container, false), . _ => bug!("cannot get associated-item of `{:?}`", def_key), . }; . 14,976 ( 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, . } 7,488 ( 0.00%) } . . fn get_item_variances(self, id: DefIndex) -> impl Iterator + 'a { 290 ( 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)> { 2,471 ( 0.00%) match self.kind(node_id) { . EntryKind::Struct(data, _) | EntryKind::Variant(data) => { 1,061 ( 0.00%) let vdata = data.decode(self); 628 ( 0.00%) vdata.ctor.map(|index| (self.local_def_id(index), vdata.ctor_kind)) . } . _ => None, . } 1,493 ( 0.00%) } . 996 ( 0.00%) fn get_item_attrs( . self, . id: DefIndex, . sess: &'a Session, . ) -> impl Iterator + 'a { 3,159 ( 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)) 747 ( 0.00%) } . . fn get_struct_field_names( . self, . id: DefIndex, . sess: &'a Session, . ) -> impl Iterator> + 'a { 1,415 ( 0.00%) self.root . .tables . .children . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 5,010 ( 0.00%) .map(move |index| respan(self.get_span(index, sess), self.item_ident(index, sess).name)) . } . . fn get_struct_field_visibilities(self, id: DefIndex) -> impl Iterator + 'a { 225 ( 0.00%) self.root . .tables . .children . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 70 ( 0.00%) .map(move |field_index| self.get_visibility(field_index)) . } . . fn get_inherent_implementations_for_type( . self, . tcx: TyCtxt<'tcx>, . id: DefIndex, . ) -> &'tcx [DefId] { 116 ( 0.00%) tcx.arena.alloc_from_iter( 145 ( 0.00%) self.root . .tables . .inherent_impls . .get(self, id) . .unwrap_or_else(Lazy::empty) . .decode(self) 845 ( 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) . }) . }) . } . 49,140 ( 0.00%) fn get_implementations_of_trait( . self, . tcx: TyCtxt<'tcx>, . trait_def_id: DefId, . ) -> &'tcx [(DefId, Option)] { 5,460 ( 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. 6,608 ( 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) { 2,924 ( 0.00%) tcx.arena.alloc_from_iter( 1,462 ( 0.00%) impls . .decode(self) 11,644 ( 0.00%) .map(|(idx, simplified_self_ty)| (self.local_def_id(idx), simplified_self_ty)), . ) . } else { . &[] . } 43,680 ( 0.00%) } . . fn get_trait_of_item(self, id: DefIndex) -> Option { 696 ( 0.00%) let def_key = self.def_key(id); 870 ( 0.00%) match def_key.disambiguated_data.data { . DefPathData::TypeNs(..) | DefPathData::ValueNs(..) => (), . // Not an associated item . _ => return None, . } 1,530 ( 0.00%) def_key.parent.and_then(|parent_index| match self.kind(parent_index) { . EntryKind::Trait(_) | EntryKind::TraitAlias => Some(self.local_def_id(parent_index)), . _ => None, . }) . } . . fn get_native_libraries(self, sess: &'a Session) -> impl Iterator + 'a { 182 ( 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] { 455 ( 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(), . }; . tcx.arena.alloc_from_iter(param_names.decode((self, tcx))) . } . . fn exported_symbols( . self, . tcx: TyCtxt<'tcx>, . ) -> &'tcx [(ExportedSymbol<'tcx>, SymbolExportLevel)] { 546 ( 0.00%) tcx.arena.alloc_from_iter(self.root.exported_symbols.decode((self, tcx))) . } . . fn get_rendered_const(self, id: DefIndex) -> String { . match self.kind(id) { . EntryKind::AnonConst(_, data) . | EntryKind::Const(_, data) . | EntryKind::AssocConst(_, _, data) => data.decode(self).0, . _ => bug!(), . } . } . . fn get_macro(self, id: DefIndex, sess: &Session) -> MacroDef { 138 ( 0.00%) match self.kind(id) { 23 ( 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 { 108 ( 0.00%) let constness = match self.kind(id) { 20 ( 0.00%) EntryKind::AssocFn(data) => data.decode(self).fn_data.constness, 6 ( 0.00%) EntryKind::Fn(data) => data.decode(self).constness, . EntryKind::ForeignFn(data) => data.decode(self).constness, . EntryKind::Variant(..) | EntryKind::Struct(..) => hir::Constness::Const, . _ => hir::Constness::NotConst, . }; . constness == hir::Constness::Const . } . . fn asyncness(self, id: DefIndex) -> hir::IsAsync { -- line 1506 ---------------------------------------- -- line 1508 ---------------------------------------- . EntryKind::Fn(data) => data.decode(self).asyncness, . EntryKind::AssocFn(data) => data.decode(self).fn_data.asyncness, . EntryKind::ForeignFn(data) => data.decode(self).asyncness, . _ => bug!("asyncness: expected function kind"), . } . } . . fn is_foreign_item(self, id: DefIndex) -> bool { 1,232 ( 0.00%) match self.kind(id) { . EntryKind::ForeignImmStatic | EntryKind::ForeignMutStatic | EntryKind::ForeignFn(_) => { . true . } . _ => false, . } . } . . fn static_mutability(self, id: DefIndex) -> Option { 275 ( 0.00%) match self.kind(id) { . EntryKind::ImmStatic | EntryKind::ForeignImmStatic => Some(hir::Mutability::Not), . EntryKind::MutStatic | EntryKind::ForeignMutStatic => Some(hir::Mutability::Mut), . _ => None, . } . } . . fn generator_kind(self, id: DefIndex) -> Option { 50 ( 0.00%) match self.kind(id) { . EntryKind::Generator(data) => Some(data), . _ => None, . } . } . . fn fn_sig(self, id: DefIndex, tcx: TyCtxt<'tcx>) -> ty::PolyFnSig<'tcx> { 1,015 ( 0.00%) self.root.tables.fn_sig.get(self, id).unwrap().decode((self, tcx)) . } . . #[inline] 134,386 ( 0.01%) fn def_key(self, index: DefIndex) -> DefKey { 38,516 ( 0.00%) *self . .def_key_cache . .lock() . .entry(index) 22,299 ( 0.00%) .or_insert_with(|| self.root.tables.def_keys.get(self, index).unwrap().decode(self)) 153,584 ( 0.01%) } . . // Returns the path leading to the thing with this `id`. . fn def_path(self, id: DefIndex) -> DefPath { . debug!("def_path(cnum={:?}, id={:?})", self.cnum, id); 92 ( 0.00%) DefPath::make(self.cnum, id, |parent| self.def_key(parent)) . } . . fn def_path_hash_unlocked( . self, . index: DefIndex, . def_path_hashes: &mut FxHashMap, . ) -> DefPathHash { 10,654 ( 0.00%) *def_path_hashes.entry(index).or_insert_with(|| { 7,915 ( 0.00%) self.root.tables.def_path_hashes.get(self, index).unwrap().decode(self) . }) . } . . #[inline] 37,289 ( 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) 42,616 ( 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`. 62,108 ( 0.01%) 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) . }); 62,108 ( 0.01%) 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, . ); . 5,495 ( 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; . } . } . } . } . } . }; . 61,025 ( 0.00%) self.cdata.source_map_import_info.get_or_init(|| { 108 ( 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 { 23,079 ( 0.00%) mut name, 6,594 ( 0.00%) src_hash, 1,099 ( 0.00%) start_pos, 2,198 ( 0.00%) end_pos, 5,495 ( 0.00%) mut lines, 5,495 ( 0.00%) mut multibyte_chars, 6,594 ( 0.00%) mut non_narrow_chars, 5,495 ( 0.00%) mut normalized_pos, 6,594 ( 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. 2,198 ( 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 { 1,013,336 ( 0.08%) *pos = *pos - start_pos; . } . for mbc in &mut multibyte_chars { 2,650 ( 0.00%) mbc.pos = mbc.pos - start_pos; . } . for swc in &mut non_narrow_chars { 1,056 ( 0.00%) *swc = *swc - start_pos; . } . for np in &mut normalized_pos { 4,050 ( 0.00%) np.pos = np.pos - start_pos; . } . 19,782 ( 0.00%) let local_version = sess.source_map().new_imported_source_file( 14,287 ( 0.00%) name, 7,693 ( 0.00%) src_hash, . name_hash, . source_length, 2,198 ( 0.00%) self.cnum, 5,495 ( 0.00%) lines, 6,594 ( 0.00%) multibyte_chars, 5,495 ( 0.00%) non_narrow_chars, 4,396 ( 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, . } 3,297 ( 0.00%) }) . .collect() . }) . } . } . . impl CrateMetadata { 1,092 ( 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 { 273 ( 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 = 273 ( 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. 91 ( 0.00%) let def_path_hash_map = root.def_path_hash_map.decode(&blob); . 2,093 ( 0.00%) CrateMetadata { 91 ( 0.00%) blob, 273 ( 0.00%) root, 364 ( 0.00%) trait_impls, . raw_proc_macros, . source_map_import_info: OnceCell::new(), 364 ( 0.00%) def_path_hash_map, . expn_hash_map: Default::default(), 637 ( 0.00%) alloc_decoding_state, . cnum, 364 ( 0.00%) cnum_map, 455 ( 0.00%) dependencies, . dep_kind: Lock::new(dep_kind), 1,092 ( 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(), . } 819 ( 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 { 470 ( 0.00%) *extern_crate = Some(new_extern_crate); . } . update . } . . crate fn source(&self) -> &CrateSource { 948 ( 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) { 1,483 ( 0.00%) self.dep_kind.with_lock(|dep_kind| *dep_kind = f(*dep_kind)) . } . . crate fn panic_strategy(&self) -> PanicStrategy { . self.root.panic_strategy . } . . crate fn needs_panic_runtime(&self) -> bool { . self.root.needs_panic_runtime -- line 1905 ---------------------------------------- -- line 1909 ---------------------------------------- . self.root.panic_runtime . } . . crate fn is_profiler_runtime(&self) -> bool { . self.root.profiler_runtime . } . . crate fn needs_allocator(&self) -> bool { 5 ( 0.00%) self.root.needs_allocator . } . . crate fn has_global_allocator(&self) -> bool { . self.root.has_global_allocator . } . . crate fn has_default_lib_allocator(&self) -> bool { . self.root.has_default_lib_allocator . } . . crate fn is_proc_macro_crate(&self) -> bool { . self.root.is_proc_macro_crate() . } . . crate fn name(&self) -> Symbol { 6,698 ( 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 { 21,258 ( 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() { 37,353 ( 0.00%) if global == did.krate { . return Some(DefId { krate: local, index: did.index }); . } . } . . None . } . } . . // Cannot be implemented on 'ProcMacro', as libproc_macro . // does not depend on librustc_ast . fn macro_kind(raw: &ProcMacro) -> MacroKind { 144 ( 0.00%) match raw { . ProcMacro::CustomDerive { .. } => MacroKind::Derive, . ProcMacro::Attr { .. } => MacroKind::Attr, . ProcMacro::Bang { .. } => MacroKind::Bang, . } . } 1,036,300 ( 0.08%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_infer/src/infer/mod.rs -------------------------------------------------------------------------------- Ir -- line 108 ---------------------------------------- . suppress_errors: bool, . }, . } . . impl RegionckMode { . /// Indicates that the MIR borrowck will repeat these region . /// checks, so we should ignore errors if NLL is (unconditionally) . /// enabled. 95 ( 0.00%) pub fn for_item_body(tcx: TyCtxt<'_>) -> Self { . // FIXME(Centril): Once we actually remove `::Migrate` also make . // this always `true` and then proceed to eliminate the dead code. 95 ( 0.00%) match tcx.borrowck_mode() { . // If we're on Migrate mode, report AST region errors . BorrowckMode::Migrate => RegionckMode::Erase { suppress_errors: false }, . . // If we're on MIR, don't report AST region errors as they should be reported by NLL . BorrowckMode::Mir => RegionckMode::Erase { suppress_errors: true }, . } 190 ( 0.00%) } . } . . /// This type contains all the things within `InferCtxt` that sit within a . /// `RefCell` and are involved with taking/rolling back snapshots. Snapshot . /// operations are hot enough that we want only one call to `borrow_mut` per . /// call to `start_snapshot` and `rollback_to`. . pub struct InferCtxtInner<'tcx> { . /// Cache for projections. This cache is snapshotted along with the infcx. -- line 134 ---------------------------------------- -- line 202 ---------------------------------------- . /// type instantiations (`ty::Infer`) to the actual opaque . /// type (`ty::Opaque`). Used during fallback to map unconstrained . /// opaque type inference variables to their corresponding . /// opaque type. . pub opaque_types_vars: FxHashMap, Ty<'tcx>>, . } . . impl<'tcx> InferCtxtInner<'tcx> { 27,955 ( 0.00%) fn new() -> InferCtxtInner<'tcx> { 190,094 ( 0.02%) InferCtxtInner { . projection_cache: Default::default(), . type_variable_storage: type_variable::TypeVariableStorage::new(), . undo_log: InferCtxtUndoLogs::default(), . const_unification_storage: ut::UnificationTableStorage::new(), . int_unification_storage: ut::UnificationTableStorage::new(), . float_unification_storage: ut::UnificationTableStorage::new(), 16,773 ( 0.00%) region_constraint_storage: Some(RegionConstraintStorage::new()), . region_obligations: vec![], . opaque_types: Default::default(), . opaque_types_vars: Default::default(), . } 33,546 ( 0.00%) } . . #[inline] . pub fn region_obligations(&self) -> &[(hir::HirId, RegionObligation<'tcx>)] { . &self.region_obligations . } . . #[inline] . pub fn projection_cache(&mut self) -> traits::ProjectionCache<'_, 'tcx> { 2,277 ( 0.00%) self.projection_cache.with_log(&mut self.undo_log) . } . . #[inline] . fn type_variables(&mut self) -> type_variable::TypeVariableTable<'_, 'tcx> { 92,652 ( 0.01%) self.type_variable_storage.with_log(&mut self.undo_log) . } . . #[inline] . fn int_unification_table( . &mut self, . ) -> ut::UnificationTable< . ut::InPlace< . ty::IntVid, -- line 245 ---------------------------------------- -- line 268 ---------------------------------------- . &mut self, . ) -> ut::UnificationTable< . ut::InPlace< . ty::ConstVid<'tcx>, . &mut ut::UnificationStorage>, . &mut InferCtxtUndoLogs<'tcx>, . >, . > { 354 ( 0.00%) self.const_unification_storage.with_log(&mut self.undo_log) . } . . #[inline] . pub fn unwrap_region_constraints(&mut self) -> RegionConstraintCollector<'_, 'tcx> { 21,054 ( 0.00%) self.region_constraint_storage . .as_mut() . .expect("region constraints already solved") 25,580 ( 0.00%) .with_log(&mut self.undo_log) . } . } . . pub struct InferCtxt<'a, 'tcx> { . pub tcx: TyCtxt<'tcx>, . . /// The `DefId` of the item in whose context we are performing inference or typeck. . /// It is used to check whether an opaque type use is a defining use. -- line 292 ---------------------------------------- -- line 361 ---------------------------------------- . /// item we are type-checking, and just consider those names as . /// part of the root universe. So this would only get incremented . /// when we enter into a higher-ranked (`for<..>`) type or trait . /// bound. . universe: Cell, . } . . /// See the `error_reporting` module for more details. 35,176 ( 0.00%) #[derive(Clone, Copy, Debug, PartialEq, Eq, TypeFoldable)] . pub enum ValuePairs<'tcx> { . Types(ExpectedFound>), . Regions(ExpectedFound>), . Consts(ExpectedFound<&'tcx ty::Const<'tcx>>), . TraitRefs(ExpectedFound>), . PolyTraitRefs(ExpectedFound>), . } . -- line 377 ---------------------------------------- -- line 383 ---------------------------------------- . pub struct TypeTrace<'tcx> { . cause: ObligationCause<'tcx>, . values: ValuePairs<'tcx>, . } . . /// The origin of a `r1 <= r2` constraint. . /// . /// See `error_reporting` module for more details 29,766 ( 0.00%) #[derive(Clone, Debug)] . pub enum SubregionOrigin<'tcx> { . /// Arose from a subtyping relation 1,528 ( 0.00%) Subtype(Box>), . . /// When casting `&'a T` to an `&'b Trait` object, . /// relating `'a` to `'b` . RelateObjectBound(Span), . . /// Some type parameter was instantiated with the given type, . /// and that type must outlive some region. 405 ( 0.00%) RelateParamBound(Span, Ty<'tcx>, Option), . . /// The given region parameter was instantiated with a region . /// that must outlive some other region. . RelateRegionParamBound(Span), . . /// Creating a pointer `b` to contents of another reference . Reborrow(Span), . . /// Creating a pointer `b` to contents of an upvar . ReborrowUpvar(Span, ty::UpvarId), . . /// Data with type `Ty<'tcx>` was borrowed 335 ( 0.00%) DataBorrowed(Ty<'tcx>, Span), . . /// (&'a &'b T) where a >= b 360 ( 0.00%) ReferenceOutlivesReferent(Ty<'tcx>, Span), . . /// Comparing the signature and requirements of an impl method against . /// the containing trait. . CompareImplMethodObligation { span: Span, impl_item_def_id: DefId, trait_item_def_id: DefId }, . . /// Comparing the signature and requirements of an impl associated type . /// against the containing trait . CompareImplTypeObligation { span: Span, impl_item_def_id: DefId, trait_item_def_id: DefId }, -- line 426 ---------------------------------------- -- line 554 ---------------------------------------- . defining_use_anchor: Option, . } . . pub trait TyCtxtInferExt<'tcx> { . fn infer_ctxt(self) -> InferCtxtBuilder<'tcx>; . } . . impl<'tcx> TyCtxtInferExt<'tcx> for TyCtxt<'tcx> { 5,591 ( 0.00%) fn infer_ctxt(self) -> InferCtxtBuilder<'tcx> { 16,773 ( 0.00%) InferCtxtBuilder { tcx: self, defining_use_anchor: None, fresh_typeck_results: None } 5,591 ( 0.00%) } . } . . impl<'tcx> InferCtxtBuilder<'tcx> { . /// Used only by `rustc_typeck` during body type-checking/inference, . /// will initialize `in_progress_typeck_results` with fresh `TypeckResults`. . /// Will also change the scope for opaque type defining use checks to the given owner. 2,889 ( 0.00%) pub fn with_fresh_in_progress_typeck_results(mut self, table_owner: LocalDefId) -> Self { 3,531 ( 0.00%) self.fresh_typeck_results = Some(RefCell::new(ty::TypeckResults::new(table_owner))); 1,605 ( 0.00%) self.with_opaque_type_inference(table_owner) 2,247 ( 0.00%) } . . /// Whenever the `InferCtxt` should be able to handle defining uses of opaque types, . /// you need to call this function. Otherwise the opaque type will be treated opaquely. . /// . /// It is only meant to be called in two places, for typeck . /// (via `with_fresh_in_progress_typeck_results`) and for the inference context used . /// in mir borrowck. 218 ( 0.00%) pub fn with_opaque_type_inference(mut self, defining_use_anchor: LocalDefId) -> Self { 109 ( 0.00%) self.defining_use_anchor = Some(defining_use_anchor); 860 ( 0.00%) self 327 ( 0.00%) } . . /// Given a canonical value `C` as a starting point, create an . /// inference context that contains each of the bound values . /// within instantiated as a fresh variable. The `f` closure is . /// invoked with the new infcx, along with the instantiated value . /// `V` and a substitution `S`. This substitution `S` maps from . /// the bound values in `C` to their instantiated values in `V` . /// (in other words, `S(C) = V`). 12,392 ( 0.00%) pub fn enter_with_canonical( . &mut self, . span: Span, . canonical: &Canonical<'tcx, T>, . f: impl for<'a> FnOnce(InferCtxt<'a, 'tcx>, T, CanonicalVarValues<'tcx>) -> R, . ) -> R . where . T: TypeFoldable<'tcx>, . { . self.enter(|infcx| { 15,706 ( 0.00%) let (value, subst) = 1,070 ( 0.00%) infcx.instantiate_canonical_with_fresh_inference_vars(span, canonical); 23,361 ( 0.00%) f(infcx, value, subst) . }) 13,434 ( 0.00%) } . 27,196 ( 0.00%) pub fn enter(&mut self, f: impl for<'a> FnOnce(InferCtxt<'a, 'tcx>) -> R) -> R { 15,326 ( 0.00%) let InferCtxtBuilder { tcx, defining_use_anchor, ref fresh_typeck_results } = *self; . let in_progress_typeck_results = fresh_typeck_results.as_ref(); 237,083 ( 0.02%) f(InferCtxt { . tcx, . defining_use_anchor, . in_progress_typeck_results, 5,591 ( 0.00%) inner: RefCell::new(InferCtxtInner::new()), . lexical_region_resolutions: RefCell::new(None), . selection_cache: Default::default(), . evaluation_cache: Default::default(), . reported_trait_errors: Default::default(), . reported_closure_mismatch: Default::default(), . tainted_by_errors_flag: Cell::new(false), 5,591 ( 0.00%) err_count_on_creation: tcx.sess.err_count(), . in_snapshot: Cell::new(false), . skip_leak_check: Cell::new(false), . universe: Cell::new(ty::UniverseIndex::ROOT), . }) 28,908 ( 0.00%) } . } . . impl<'tcx, T> InferOk<'tcx, T> { . pub fn unit(self) -> InferOk<'tcx, ()> { . InferOk { value: (), obligations: self.obligations } . } . . /// Extracts `value`, registering any obligations into `fulfill_cx`. . pub fn into_value_registering_obligations( . self, . infcx: &InferCtxt<'_, 'tcx>, . fulfill_cx: &mut dyn TraitEngine<'tcx>, . ) -> T { 276 ( 0.00%) let InferOk { value, obligations } = self; 1,138 ( 0.00%) for obligation in obligations { . fulfill_cx.register_predicate_obligation(infcx, obligation); . } . value . } . } . . impl<'tcx> InferOk<'tcx, ()> { 3,895 ( 0.00%) pub fn into_obligations(self) -> PredicateObligations<'tcx> { 15,580 ( 0.00%) self.obligations 3,895 ( 0.00%) } . } . . #[must_use = "once you start a snapshot, you should always consume it"] . pub struct CombinedSnapshot<'a, 'tcx> { . undo_snapshot: Snapshot<'tcx>, . region_constraints_snapshot: RegionSnapshot, . universe: ty::UniverseIndex, . was_in_snapshot: bool, -- line 662 ---------------------------------------- -- line 674 ---------------------------------------- . let canonical = self.canonicalize_query((a, b), &mut OriginalQueryValues::default()); . debug!("canonical consts: {:?}", &canonical.value); . . self.tcx.try_unify_abstract_consts(canonical.value) . } . . pub fn is_in_snapshot(&self) -> bool { . self.in_snapshot.get() 6,176 ( 0.00%) } . 57,112 ( 0.00%) pub fn freshen>(&self, t: T) -> T { 64,251 ( 0.01%) t.fold_with(&mut self.freshener()) 64,251 ( 0.01%) } . . /// Returns the origin of the type variable identified by `vid`, or `None` . /// if this is not a type variable. . /// . /// No attempt is made to resolve `ty`. 48 ( 0.00%) pub fn type_var_origin(&'a self, ty: Ty<'tcx>) -> Option { 96 ( 0.00%) match *ty.kind() { 24 ( 0.00%) ty::Infer(ty::TyVar(vid)) => { 96 ( 0.00%) Some(*self.inner.borrow_mut().type_variables().var_origin(vid)) . } . _ => None, . } 96 ( 0.00%) } . 7,139 ( 0.00%) pub fn freshener<'b>(&'b self) -> TypeFreshener<'b, 'tcx> { . freshen::TypeFreshener::new(self, false) 7,139 ( 0.00%) } . . /// Like `freshener`, but does not replace `'static` regions. 23,403 ( 0.00%) pub fn freshener_keep_static<'b>(&'b self) -> TypeFreshener<'b, 'tcx> { . freshen::TypeFreshener::new(self, true) 23,403 ( 0.00%) } . 428 ( 0.00%) pub fn unsolved_variables(&self) -> Vec> { 214 ( 0.00%) let mut inner = self.inner.borrow_mut(); 214 ( 0.00%) let mut vars: Vec> = inner . .type_variables() . .unsolved_variables() . .into_iter() 48 ( 0.00%) .map(|t| self.tcx.mk_ty_var(t)) . .collect(); . vars.extend( . (0..inner.int_unification_table().len()) . .map(|i| ty::IntVid { index: i as u32 }) . .filter(|&vid| inner.int_unification_table().probe_value(vid).is_none()) . .map(|v| self.tcx.mk_int_var(v)), . ); . vars.extend( . (0..inner.float_unification_table().len()) . .map(|i| ty::FloatVid { index: i as u32 }) . .filter(|&vid| inner.float_unification_table().probe_value(vid).is_none()) . .map(|v| self.tcx.mk_float_var(v)), . ); . vars 749 ( 0.00%) } . 11,274 ( 0.00%) fn combine_fields( . &'a self, . trace: TypeTrace<'tcx>, . param_env: ty::ParamEnv<'tcx>, . ) -> CombineFields<'a, 'tcx> { 45,212 ( 0.00%) CombineFields { . infcx: self, 113,030 ( 0.01%) trace, . cause: None, . param_env, . obligations: PredicateObligations::new(), . } 11,274 ( 0.00%) } . . /// Clear the "currently in a snapshot" flag, invoke the closure, . /// then restore the flag to its original value. This flag is a . /// debugging measure designed to detect cases where we start a . /// snapshot, create type variables, and register obligations . /// which may involve those type variables in the fulfillment cx, . /// potentially leaving "dangling type variables" behind. . /// In such cases, an assertion will fail when attempting to -- line 753 ---------------------------------------- -- line 760 ---------------------------------------- . /// before we return, this is not a problem, as there won't be any . /// escaping obligations in the main cx. In those cases, you can . /// use this function. . pub fn save_and_restore_in_snapshot_flag(&self, func: F) -> R . where . F: FnOnce(&Self) -> R, . { . let flag = self.in_snapshot.replace(false); 2,100 ( 0.00%) let result = func(self); . self.in_snapshot.set(flag); . result . } . 62,300 ( 0.01%) fn start_snapshot(&self) -> CombinedSnapshot<'a, 'tcx> { . debug!("start_snapshot()"); . . let in_snapshot = self.in_snapshot.replace(true); . . let mut inner = self.inner.borrow_mut(); . 186,900 ( 0.02%) CombinedSnapshot { . undo_snapshot: inner.undo_log.start_snapshot(), . region_constraints_snapshot: inner.unwrap_region_constraints().start_snapshot(), . universe: self.universe(), . was_in_snapshot: in_snapshot, . // Borrow typeck results "in progress" (i.e., during typeck) . // to ban writes from within a snapshot to them. 31,150 ( 0.00%) _in_progress_typeck_results: self . .in_progress_typeck_results . .map(|typeck_results| typeck_results.borrow()), . } 124,600 ( 0.01%) } . 106,282 ( 0.01%) #[instrument(skip(self, snapshot), level = "debug")] . fn rollback_to(&self, cause: &str, snapshot: CombinedSnapshot<'a, 'tcx>) { . let CombinedSnapshot { 9,662 ( 0.00%) undo_snapshot, 9,662 ( 0.00%) region_constraints_snapshot, 9,662 ( 0.00%) universe, 9,662 ( 0.00%) was_in_snapshot, 19,324 ( 0.00%) _in_progress_typeck_results, . } = snapshot; . . self.in_snapshot.set(was_in_snapshot); . self.universe.set(universe); . . let mut inner = self.inner.borrow_mut(); 9,662 ( 0.00%) inner.rollback_to(undo_snapshot); . inner.unwrap_region_constraints().rollback_to(region_constraints_snapshot); . } . 322,320 ( 0.03%) #[instrument(skip(self, snapshot), level = "debug")] . fn commit_from(&self, snapshot: CombinedSnapshot<'a, 'tcx>) { . let CombinedSnapshot { 21,488 ( 0.00%) undo_snapshot, . region_constraints_snapshot: _, . universe: _, 21,488 ( 0.00%) was_in_snapshot, 42,976 ( 0.00%) _in_progress_typeck_results, . } = snapshot; . . self.in_snapshot.set(was_in_snapshot); . . self.inner.borrow_mut().commit(undo_snapshot); . } . . /// Executes `f` and commit the bindings. 26,878 ( 0.00%) #[instrument(skip(self, f), level = "debug")] 33,814 ( 0.00%) pub fn commit_unconditionally(&self, f: F) -> R . where . F: FnOnce(&CombinedSnapshot<'a, 'tcx>) -> R, . { 3,074 ( 0.00%) let snapshot = self.start_snapshot(); 13,264 ( 0.00%) let r = f(&snapshot); 21,518 ( 0.00%) self.commit_from(snapshot); 18,424 ( 0.00%) r . } . . /// Execute `f` and commit the bindings if closure `f` returns `Ok(_)`. 137,883 ( 0.01%) #[instrument(skip(self, f), level = "debug")] 169,554 ( 0.01%) pub fn commit_if_ok(&self, f: F) -> Result . where . F: FnOnce(&CombinedSnapshot<'a, 'tcx>) -> Result, . { 23,349 ( 0.00%) let snapshot = self.start_snapshot(); 78,756 ( 0.01%) let r = f(&snapshot); . debug!("commit_if_ok() -- r.is_ok() = {}", r.is_ok()); 20,354 ( 0.00%) match r { . Ok(_) => { 135,359 ( 0.01%) self.commit_from(snapshot); . } . Err(_) => { 26,942 ( 0.00%) self.rollback_to("commit_if_ok -- error", snapshot); . } . } 120,318 ( 0.01%) r . } . . /// Execute `f` then unroll any bindings it creates. 49,926 ( 0.00%) #[instrument(skip(self, f), level = "debug")] 56,971 ( 0.00%) pub fn probe(&self, f: F) -> R . where . F: FnOnce(&CombinedSnapshot<'a, 'tcx>) -> R, . { 13,807 ( 0.00%) let snapshot = self.start_snapshot(); 19,747 ( 0.00%) let r = f(&snapshot); 63,289 ( 0.01%) self.rollback_to("probe", snapshot); 7,562 ( 0.00%) r . } . . /// If `should_skip` is true, then execute `f` then unroll any bindings it creates. 36 ( 0.00%) #[instrument(skip(self, f), level = "debug")] 48 ( 0.00%) pub fn probe_maybe_skip_leak_check(&self, should_skip: bool, f: F) -> R . where . F: FnOnce(&CombinedSnapshot<'a, 'tcx>) -> R, . { 8 ( 0.00%) let snapshot = self.start_snapshot(); 4 ( 0.00%) let was_skip_leak_check = self.skip_leak_check.get(); 8 ( 0.00%) if should_skip { . self.skip_leak_check.set(true); . } 16 ( 0.00%) let r = f(&snapshot); 36 ( 0.00%) self.rollback_to("probe", snapshot); . self.skip_leak_check.set(was_skip_leak_check); 48 ( 0.00%) r . } . . /// Scan the constraints produced since `snapshot` began and returns: . /// . /// - `None` -- if none of them involve "region outlives" constraints . /// - `Some(true)` -- if there are `'a: 'b` constraints where `'a` or `'b` is a placeholder . /// - `Some(false)` -- if there are `'a: 'b` constraints but none involve placeholders 5,966 ( 0.00%) pub fn region_constraints_added_in_snapshot( . &self, . snapshot: &CombinedSnapshot<'a, 'tcx>, . ) -> Option { 11,932 ( 0.00%) self.inner . .borrow_mut() . .unwrap_region_constraints() . .region_constraints_added_in_snapshot(&snapshot.undo_snapshot) 8,949 ( 0.00%) } . . pub fn add_given(&self, sub: ty::Region<'tcx>, sup: ty::RegionVid) { . self.inner.borrow_mut().unwrap_region_constraints().add_given(sub, sup); . } . 12 ( 0.00%) pub fn can_sub(&self, param_env: ty::ParamEnv<'tcx>, a: T, b: T) -> UnitResult<'tcx> . where . T: at::ToTrace<'tcx>, . { . let origin = &ObligationCause::dummy(); . self.probe(|_| { . self.at(origin, param_env).sub(a, b).map(|InferOk { obligations: _, .. }| { . // Ignore obligations, since we are unrolling . // everything anyway. . }) . }) 9 ( 0.00%) } . 1,572 ( 0.00%) pub fn can_eq(&self, param_env: ty::ParamEnv<'tcx>, a: T, b: T) -> UnitResult<'tcx> . where . T: at::ToTrace<'tcx>, . { . let origin = &ObligationCause::dummy(); . self.probe(|_| { . self.at(origin, param_env).eq(a, b).map(|InferOk { obligations: _, .. }| { . // Ignore obligations, since we are unrolling . // everything anyway. . }) . }) 1,179 ( 0.00%) } . 10,050 ( 0.00%) #[instrument(skip(self), level = "debug")] . pub fn sub_regions( . &self, . origin: SubregionOrigin<'tcx>, . a: ty::Region<'tcx>, . b: ty::Region<'tcx>, . ) { 9,045 ( 0.00%) self.inner.borrow_mut().unwrap_region_constraints().make_subregion(origin, a, b); . } . . /// Require that the region `r` be equal to one of the regions in . /// the set `regions`. . #[instrument(skip(self), level = "debug")] . pub fn member_constraint( . &self, . opaque_type_def_id: DefId, -- line 947 ---------------------------------------- -- line 983 ---------------------------------------- . let subtype_predicate = predicate.map_bound(|p| ty::SubtypePredicate { . a_is_expected: false, // when coercing from `a` to `b`, `b` is expected . a: p.a, . b: p.b, . }); . self.subtype_predicate(cause, param_env, subtype_predicate) . } . 1,020 ( 0.00%) pub fn subtype_predicate( . &self, . cause: &ObligationCause<'tcx>, . param_env: ty::ParamEnv<'tcx>, . predicate: ty::PolySubtypePredicate<'tcx>, . ) -> Option> { . // Check for two unresolved inference variables, in which case we can . // make no progress. This is partly a micro-optimization, but it's . // also an opportunity to "sub-unify" the variables. This isn't -- line 999 ---------------------------------------- -- line 1002 ---------------------------------------- . // earlier that they are sub-unified). . // . // Note that we can just skip the binders here because . // type variables can't (at present, at . // least) capture any of the things bound by this binder. . // . // Note that this sub here is not just for diagnostics - it has semantic . // effects as well. 85 ( 0.00%) let r_a = self.shallow_resolve(predicate.skip_binder().a); 85 ( 0.00%) let r_b = self.shallow_resolve(predicate.skip_binder().b); 578 ( 0.00%) match (r_a.kind(), r_b.kind()) { 120 ( 0.00%) (&ty::Infer(ty::TyVar(a_vid)), &ty::Infer(ty::TyVar(b_vid))) => { . self.inner.borrow_mut().type_variables().sub(a_vid, b_vid); 120 ( 0.00%) return None; . } . _ => {} . } . . Some(self.commit_if_ok(|_snapshot| { 25 ( 0.00%) let ty::SubtypePredicate { a_is_expected, a, b } = . self.replace_bound_vars_with_placeholders(predicate); . 50 ( 0.00%) let ok = self.at(cause, param_env).sub_exp(a_is_expected, a, b)?; . . Ok(ok.unit()) . })) 765 ( 0.00%) } . 3,192 ( 0.00%) pub fn region_outlives_predicate( . &self, . cause: &traits::ObligationCause<'tcx>, . predicate: ty::PolyRegionOutlivesPredicate<'tcx>, . ) -> UnitResult<'tcx> { . self.commit_if_ok(|_snapshot| { . let ty::OutlivesPredicate(r_a, r_b) = . self.replace_bound_vars_with_placeholders(predicate); . let origin = SubregionOrigin::from_obligation_cause(cause, || { . RelateRegionParamBound(cause.span) . }); 2,660 ( 0.00%) self.sub_regions(origin, r_b, r_a); // `b : a` ==> `a <= b` . Ok(()) . }) 2,128 ( 0.00%) } . . /// Number of type variables created so far. 12 ( 0.00%) pub fn num_ty_vars(&self) -> usize { . self.inner.borrow_mut().type_variables().num_vars() 24 ( 0.00%) } . 3,146 ( 0.00%) pub fn next_ty_var_id(&self, origin: TypeVariableOrigin) -> TyVid { 15,730 ( 0.00%) self.inner.borrow_mut().type_variables().new_var(self.universe(), origin) 4,719 ( 0.00%) } . 2,956 ( 0.00%) pub fn next_ty_var(&self, origin: TypeVariableOrigin) -> Ty<'tcx> { 10,916 ( 0.00%) self.tcx.mk_ty_var(self.next_ty_var_id(origin)) 4,434 ( 0.00%) } . 428 ( 0.00%) pub fn next_ty_var_in_universe( . &self, . origin: TypeVariableOrigin, . universe: ty::UniverseIndex, . ) -> Ty<'tcx> { 2,354 ( 0.00%) let vid = self.inner.borrow_mut().type_variables().new_var(universe, origin); 214 ( 0.00%) self.tcx.mk_ty_var(vid) 642 ( 0.00%) } . . pub fn next_const_var( . &self, . ty: Ty<'tcx>, . origin: ConstVariableOrigin, . ) -> &'tcx ty::Const<'tcx> { . self.tcx.mk_const_var(self.next_const_var_id(origin), ty) . } -- line 1074 ---------------------------------------- -- line 1108 ---------------------------------------- . . pub fn next_float_var(&self) -> Ty<'tcx> { . self.tcx.mk_float_var(self.next_float_var_id()) . } . . /// Creates a fresh region variable with the next available index. . /// The variable will be created in the maximum universe created . /// thus far, allowing it to name any region created thus far. 1,468 ( 0.00%) pub fn next_region_var(&self, origin: RegionVariableOrigin) -> ty::Region<'tcx> { 35,310 ( 0.00%) self.next_region_var_in_universe(origin, self.universe()) 2,936 ( 0.00%) } . . /// Creates a fresh region variable with the next available index . /// in the given universe; typically, you can use . /// `next_region_var` and just use the maximal universe. 15,638 ( 0.00%) pub fn next_region_var_in_universe( . &self, . origin: RegionVariableOrigin, . universe: ty::UniverseIndex, . ) -> ty::Region<'tcx> { . let region_var = 101,647 ( 0.01%) self.inner.borrow_mut().unwrap_region_constraints().new_region_var(universe, origin); 39,095 ( 0.00%) self.tcx.mk_region(ty::ReVar(region_var)) 23,457 ( 0.00%) } . . /// Return the universe that the region `r` was created in. For . /// most regions (e.g., `'static`, named regions from the user, . /// etc) this is the root universe U0. For inference variables or . /// placeholders, however, it will return the universe which which . /// they are associated. 2,082 ( 0.00%) pub fn universe_of_region(&self, r: ty::Region<'tcx>) -> ty::UniverseIndex { . self.inner.borrow_mut().unwrap_region_constraints().universe(r) 3,123 ( 0.00%) } . . /// Number of region variables created so far. 830 ( 0.00%) pub fn num_region_vars(&self) -> usize { . self.inner.borrow_mut().unwrap_region_constraints().num_region_vars() 1,245 ( 0.00%) } . . /// Just a convenient wrapper of `next_region_var` for using during NLL. 3,009 ( 0.00%) pub fn next_nll_region_var(&self, origin: NllRegionVariableOrigin) -> ty::Region<'tcx> { . self.next_region_var(RegionVariableOrigin::Nll(origin)) 6,018 ( 0.00%) } . . /// Just a convenient wrapper of `next_region_var` for using during NLL. 130 ( 0.00%) pub fn next_nll_region_var_in_universe( . &self, . origin: NllRegionVariableOrigin, . universe: ty::UniverseIndex, . ) -> ty::Region<'tcx> { 1,014 ( 0.00%) self.next_region_var_in_universe(RegionVariableOrigin::Nll(origin), universe) 260 ( 0.00%) } . 38,600 ( 0.00%) pub fn var_for_def(&self, span: Span, param: &ty::GenericParamDef) -> GenericArg<'tcx> { 21,957 ( 0.00%) match param.kind { . GenericParamDefKind::Lifetime => { . // Create a region inference variable for the given . // region parameter definition. 1,084 ( 0.00%) self.next_region_var(EarlyBoundRegion(span, param.name)).into() . } . GenericParamDefKind::Type { .. } => { . // Create a type inference variable for the given . // type parameter definition. The substitutions are . // for actual parameters that may be referred to by . // the default of this type parameter, if it exists. . // e.g., `struct Foo(...);` when . // used in a path such as `Foo::::new()` will . // use an inference variable for `C` with `[T, U]` . // as the substitutions for the default, `(T, U)`. 14,960 ( 0.00%) let ty_var_id = self.inner.borrow_mut().type_variables().new_var( . self.universe(), 18,700 ( 0.00%) TypeVariableOrigin { . kind: TypeVariableOriginKind::TypeParameterDefinition( 3,740 ( 0.00%) param.name, 3,740 ( 0.00%) Some(param.def_id), . ), . span, . }, . ); . 3,740 ( 0.00%) self.tcx.mk_ty_var(ty_var_id).into() . } . GenericParamDefKind::Const { .. } => { . let origin = ConstVariableOrigin { . kind: ConstVariableOriginKind::ConstParameterDefinition( . param.name, . param.def_id, . ), . span, . }; . let const_var_id = 11 ( 0.00%) self.inner.borrow_mut().const_unification_table().new_key(ConstVarValue { . origin, . val: ConstVariableValue::Unknown { universe: self.universe() }, . }); 1 ( 0.00%) self.tcx.mk_const_var(const_var_id, self.tcx.type_of(param.def_id)).into() . } . } 8 ( 0.00%) } . . /// Given a set of generics defined on a type or impl, returns a substitution mapping each . /// type/region parameter to a fresh inference variable. 9,111 ( 0.00%) pub fn fresh_substs_for_item(&self, span: Span, def_id: DefId) -> SubstsRef<'tcx> { 39,787 ( 0.00%) InternalSubsts::for_item(self.tcx, def_id, |param, _| self.var_for_def(span, param)) 6,074 ( 0.00%) } . . /// Returns `true` if errors have been reported since this infcx was . /// created. This is sometimes used as a heuristic to skip . /// reporting errors that often occur as a result of earlier . /// errors, but where it's hard to be 100% sure (e.g., unresolved . /// inference variables, regionck errors). 266 ( 0.00%) pub fn is_tainted_by_errors(&self) -> bool { . debug!( . "is_tainted_by_errors(err_count={}, err_count_on_creation={}, \ . tainted_by_errors_flag={})", . self.tcx.sess.err_count(), . self.err_count_on_creation, . self.tainted_by_errors_flag.get() . ); . 13,345 ( 0.00%) if self.tcx.sess.err_count() > self.err_count_on_creation { . return true; // errors reported since this infcx was made . } . self.tainted_by_errors_flag.get() 399 ( 0.00%) } . . /// Set the "tainted by errors" flag to true. We call this when we . /// observe an error from a prior pass. . pub fn set_tainted_by_errors(&self) { . debug!("set_tainted_by_errors()"); . self.tainted_by_errors_flag.set(true) . } . . /// Process the region constraints and return any any errors that . /// result. After this, no more unification operations should be . /// done -- or the compiler will panic -- but it is legal to use . /// `resolve_vars_if_possible` as well as `fully_resolve`. 14,483 ( 0.00%) pub fn resolve_regions( . &self, . region_context: DefId, . outlives_env: &OutlivesEnvironment<'tcx>, . mode: RegionckMode, . ) -> Vec> { 39,311 ( 0.00%) let (var_infos, data) = { . let mut inner = self.inner.borrow_mut(); . let inner = &mut *inner; 2,069 ( 0.00%) assert!( 6,207 ( 0.00%) self.is_tainted_by_errors() || inner.region_obligations.is_empty(), . "region_obligations not empty: {:#?}", . inner.region_obligations . ); . inner . .region_constraint_storage . .take() . .expect("regions already resolved") . .with_log(&mut inner.undo_log) . .into_infos_and_data() 2,069 ( 0.00%) }; . . let region_rels = 2,069 ( 0.00%) &RegionRelations::new(self.tcx, region_context, outlives_env.free_region_map()); . 18,621 ( 0.00%) let (lexical_region_resolutions, errors) = 49,656 ( 0.00%) lexical_region_resolve::resolve(region_rels, var_infos, data, mode); . 8,276 ( 0.00%) let old_value = self.lexical_region_resolutions.replace(Some(lexical_region_resolutions)); 2,069 ( 0.00%) assert!(old_value.is_none()); . . errors 18,621 ( 0.00%) } . . /// Process the region constraints and report any errors that . /// result. After this, no more unification operations should be . /// done -- or the compiler will panic -- but it is legal to use . /// `resolve_vars_if_possible` as well as `fully_resolve`. 20,690 ( 0.00%) pub fn resolve_regions_and_report_errors( . &self, . region_context: DefId, . outlives_env: &OutlivesEnvironment<'tcx>, . mode: RegionckMode, . ) { 4,138 ( 0.00%) let errors = self.resolve_regions(region_context, outlives_env, mode); . 6,207 ( 0.00%) if !self.is_tainted_by_errors() { . // As a heuristic, just skip reporting region errors . // altogether if other errors have been reported while . // this infcx was in use. This is totally hokey but . // otherwise we have a hard time separating legit region . // errors from silly ones. 4,138 ( 0.00%) self.report_region_errors(&errors); . } 10,345 ( 0.00%) } . . /// Obtains (and clears) the current set of region . /// constraints. The inference context is still usable: further . /// unifications will simply add new constraints. . /// . /// This method is not meant to be used with normal lexical region . /// resolution. Rather, it is used in the NLL mode as a kind of . /// interim hack: basically we run normal type-check and generate . /// region constraints as normal, but then we take them and . /// translate them into the form that the NLL solver . /// understands. See the NLL module for mode details. 42 ( 0.00%) pub fn take_and_reset_region_constraints(&self) -> RegionConstraintData<'tcx> { 14 ( 0.00%) assert!( . self.inner.borrow().region_obligations.is_empty(), . "region_obligations not empty: {:#?}", . self.inner.borrow().region_obligations . ); . 56 ( 0.00%) self.inner.borrow_mut().unwrap_region_constraints().take_and_reset_data() 70 ( 0.00%) } . . /// Gives temporary access to the region constraint data. . pub fn with_region_constraints( . &self, . op: impl FnOnce(&RegionConstraintData<'tcx>) -> R, . ) -> R { . let mut inner = self.inner.borrow_mut(); 4,636 ( 0.00%) op(inner.unwrap_region_constraints().data()) . } . . pub fn region_var_origin(&self, vid: ty::RegionVid) -> RegionVariableOrigin { . let mut inner = self.inner.borrow_mut(); . let inner = &mut *inner; . inner . .region_constraint_storage . .as_mut() -- line 1335 ---------------------------------------- -- line 1338 ---------------------------------------- . .var_origin(vid) . } . . /// Takes ownership of the list of variable regions. This implies . /// that all the region constraints have already been taken, and . /// hence that `resolve_regions_and_report_errors` can never be . /// called. This is used only during NLL processing to "hand off" ownership . /// of the set of region variables into the NLL region context. 510 ( 0.00%) pub fn take_region_var_origins(&self) -> VarInfos { . let mut inner = self.inner.borrow_mut(); 1,938 ( 0.00%) let (var_infos, data) = inner . .region_constraint_storage . .take() . .expect("regions already resolved") . .with_log(&mut inner.undo_log) 102 ( 0.00%) .into_infos_and_data(); 102 ( 0.00%) assert!(data.is_empty()); . var_infos 816 ( 0.00%) } . . pub fn ty_to_string(&self, t: Ty<'tcx>) -> String { . self.resolve_vars_if_possible(t).to_string() . } . . /// If `TyVar(vid)` resolves to a type, return that type. Else, return the . /// universe index of `TyVar(vid)`. 2,080 ( 0.00%) pub fn probe_ty_var(&self, vid: TyVid) -> Result, ty::UniverseIndex> { . use self::type_variable::TypeVariableValue; . 6,240 ( 0.00%) match self.inner.borrow_mut().type_variables().probe(vid) { . TypeVariableValue::Known { value } => Ok(value), . TypeVariableValue::Unknown { universe } => Err(universe), . } 7,280 ( 0.00%) } . . /// Resolve any type variables found in `value` -- but only one . /// level. So, if the variable `?X` is bound to some type . /// `Foo`, then this would return `Foo` (but `?Y` may . /// itself be bound to a type). . /// . /// Useful when you only need to inspect the outermost level of . /// the type and don't care about nested types (or perhaps you . /// will be resolving them as well, e.g. in a loop). . pub fn shallow_resolve(&self, value: T) -> T . where . T: TypeFoldable<'tcx>, . { 38,268 ( 0.00%) value.fold_with(&mut ShallowResolver { infcx: self }) . } . 2,254 ( 0.00%) pub fn root_var(&self, var: ty::TyVid) -> ty::TyVid { . self.inner.borrow_mut().type_variables().root_var(var) 3,381 ( 0.00%) } . . /// Where possible, replaces type/const variables in . /// `value` with their final value. Note that region variables . /// are unaffected. If a type/const variable has not been unified, it . /// is left as is. This is an idempotent operation that does . /// not affect inference state in any way and so you can do it . /// at will. 108 ( 0.00%) pub fn resolve_vars_if_possible(&self, value: T) -> T . where . T: TypeFoldable<'tcx>, . { 45,767 ( 0.00%) if !value.needs_infer() { 46,988 ( 0.00%) return value; // Avoid duplicated subst-folding. . } 40,915 ( 0.00%) let mut r = resolve::OpportunisticVarResolver::new(self); 46,339 ( 0.00%) value.fold_with(&mut r) 107 ( 0.00%) } . . /// Returns the first unresolved variable contained in `T`. In the . /// process of visiting `T`, this will resolve (where possible) . /// type variables in `T`, but it never constructs the final, . /// resolved type, so it's more efficient than . /// `resolve_vars_if_possible()`. . pub fn unresolved_type_vars(&self, value: &T) -> Option<(Ty<'tcx>, Option)> . where . T: TypeFoldable<'tcx>, . { 2,072 ( 0.00%) value.visit_with(&mut resolve::UnresolvedTypeFinder::new(self)).break_value() . } . . pub fn probe_const_var( . &self, . vid: ty::ConstVid<'tcx>, . ) -> Result<&'tcx ty::Const<'tcx>, ty::UniverseIndex> { . match self.inner.borrow_mut().const_unification_table().probe_value(vid).val { . ConstVariableValue::Known { value } => Ok(value), -- line 1426 ---------------------------------------- -- line 1490 ---------------------------------------- . expected: &'tcx ty::Const<'tcx>, . actual: &'tcx ty::Const<'tcx>, . err: TypeError<'tcx>, . ) -> DiagnosticBuilder<'tcx> { . let trace = TypeTrace::consts(cause, true, expected, actual); . self.report_and_explain_type_error(trace, &err) . } . 2,727 ( 0.00%) pub fn replace_bound_vars_with_fresh_vars( . &self, . span: Span, . lbrct: LateBoundRegionConversionTime, . value: ty::Binder<'tcx, T>, . ) -> (T, BTreeMap>) . where . T: TypeFoldable<'tcx>, . { . let fld_r = 15,943 ( 0.00%) |br: ty::BoundRegion| self.next_region_var(LateBoundRegion(span, br.kind, lbrct)); . let fld_t = |_| { . self.next_ty_var(TypeVariableOrigin { . kind: TypeVariableOriginKind::MiscVariable, . span, . }) . }; . let fld_c = |_, ty| { . self.next_const_var( . ty, . ConstVariableOrigin { kind: ConstVariableOriginKind::MiscVariable, span }, . ) . }; 56,209 ( 0.00%) self.tcx.replace_bound_vars(value, fld_r, fld_t, fld_c) 1,818 ( 0.00%) } . . /// See the [`region_constraints::RegionConstraintCollector::verify_generic_bound`] method. 2,792 ( 0.00%) pub fn verify_generic_bound( . &self, . origin: SubregionOrigin<'tcx>, . kind: GenericKind<'tcx>, . a: ty::Region<'tcx>, . bound: VerifyBound<'tcx>, . ) { . debug!("verify_generic_bound({:?}, {:?} <: {:?})", kind, a, bound); . 1,047 ( 0.00%) self.inner . .borrow_mut() . .unwrap_region_constraints() 5,933 ( 0.00%) .verify_generic_bound(origin, kind, a, bound); 2,443 ( 0.00%) } . . /// Obtains the latest type of the given closure; this may be a . /// closure in the current function, in which case its . /// `ClosureKind` may not yet be known. 54 ( 0.00%) pub fn closure_kind(&self, closure_substs: SubstsRef<'tcx>) -> Option { 108 ( 0.00%) let closure_kind_ty = closure_substs.as_closure().kind_ty(); . let closure_kind_ty = self.shallow_resolve(closure_kind_ty); 81 ( 0.00%) closure_kind_ty.to_opt_closure_kind() . } . . /// Clears the selection, evaluation, and projection caches. This is useful when . /// repeatedly attempting to select an `Obligation` while changing only . /// its `ParamEnv`, since `FulfillmentContext` doesn't use probing. . pub fn clear_caches(&self) { . self.selection_cache.clear(); . self.evaluation_cache.clear(); . self.inner.borrow_mut().projection_cache().clear(); . } . . pub fn universe(&self) -> ty::UniverseIndex { 73,563 ( 0.01%) self.universe.get() 22,248 ( 0.00%) } . . /// Creates and return a fresh universe that extends all previous . /// universes. Updates `self.universe` to that new universe. 148 ( 0.00%) pub fn create_next_universe(&self) -> ty::UniverseIndex { 236 ( 0.00%) let u = self.universe.get().next_universe(); . self.universe.set(u); . u 148 ( 0.00%) } . . /// Resolves and evaluates a constant. . /// . /// The constant can be located on a trait like `::C`, in which case the given . /// substitutions and environment are used to resolve the constant. Alternatively if the . /// constant has generic parameters in scope the substitutions are used to evaluate the value of . /// the constant. For example in `fn foo() { let _ = [0; bar::()]; }` the repeat count . /// constant `bar::()` requires a substitution for `T`, if the substitution for `T` is still -- line 1576 ---------------------------------------- -- line 1606 ---------------------------------------- . // variables, thus we don't need to substitute back the original values. . self.tcx.const_eval_resolve(param_env_erased, unevaluated, span) . } . . /// If `typ` is a type variable of some kind, resolve it one level . /// (but do not resolve types found in the result). If `typ` is . /// not a type variable, just return it unmodified. . // FIXME(eddyb) inline into `ShallowResolver::visit_ty`. 469,504 ( 0.04%) fn shallow_resolve_ty(&self, typ: Ty<'tcx>) -> Ty<'tcx> { 245,893 ( 0.02%) match *typ.kind() { . ty::Infer(ty::TyVar(v)) => { . // Not entirely obvious: if `typ` is a type variable, . // it can be resolved to an int/float variable, which . // can then be recursively resolved, hence the . // recursion. Note though that we prevent type . // variables from unifying to other type variables . // directly (though they may be embedded . // structurally), and we prevent cycles in any case, . // so this recursion should always be of very limited . // depth. . // . // Note: if these two lines are combined into one we get . // dynamic borrow errors on `self.inner`. 122,812 ( 0.01%) let known = self.inner.borrow_mut().type_variables().probe(v).known(); . known.map_or(typ, |t| self.shallow_resolve_ty(t)) . } . . ty::Infer(ty::IntVar(v)) => self . .inner . .borrow_mut() . .int_unification_table() . .probe_value(v) -- line 1637 ---------------------------------------- -- line 1643 ---------------------------------------- . .borrow_mut() . .float_unification_table() . .probe_value(v) . .map(|v| v.to_type(self.tcx)) . .unwrap_or(typ), . . _ => typ, . } 528,192 ( 0.04%) } . . /// `ty_or_const_infer_var_changed` is equivalent to one of these two: . /// * `shallow_resolve(ty) != ty` (where `ty.kind = ty::Infer(_)`) . /// * `shallow_resolve(ct) != ct` (where `ct.kind = ty::ConstKind::Infer(_)`) . /// . /// However, `ty_or_const_infer_var_changed` is more efficient. It's always . /// inlined, despite being large, because it has only two call sites that . /// are extremely hot (both in `traits::fulfill`'s checking of `stalled_on` -- line 1659 ---------------------------------------- -- line 1662 ---------------------------------------- . #[inline(always)] . pub fn ty_or_const_infer_var_changed(&self, infer_var: TyOrConstInferVar<'tcx>) -> bool { . match infer_var { . TyOrConstInferVar::Ty(v) => { . use self::type_variable::TypeVariableValue; . . // If `inlined_probe` returns a `Known` value, it never equals . // `ty::Infer(ty::TyVar(v))`. 88,530 ( 0.01%) match self.inner.borrow_mut().type_variables().inlined_probe(v) { . TypeVariableValue::Unknown { .. } => false, . TypeVariableValue::Known { .. } => true, . } . } . . TyOrConstInferVar::TyInt(v) => { . // If `inlined_probe_value` returns a value it's always a . // `ty::Int(_)` or `ty::UInt(_)`, which never matches a -- line 1678 ---------------------------------------- -- line 1716 ---------------------------------------- . /// Equivalent to `ty::ConstKind::Infer(ty::InferConst::Var(_))`. . Const(ConstVid<'tcx>), . } . . impl<'tcx> TyOrConstInferVar<'tcx> { . /// Tries to extract an inference variable from a type or a constant, returns `None` . /// for types other than `ty::Infer(_)` (or `InferTy::Fresh*`) and . /// for constants other than `ty::ConstKind::Infer(_)` (or `InferConst::Fresh`). 1,213 ( 0.00%) pub fn maybe_from_generic_arg(arg: GenericArg<'tcx>) -> Option { . match arg.unpack() { . GenericArgKind::Type(ty) => Self::maybe_from_ty(ty), . GenericArgKind::Const(ct) => Self::maybe_from_const(ct), . GenericArgKind::Lifetime(_) => None, . } 1,213 ( 0.00%) } . . /// Tries to extract an inference variable from a type, returns `None` . /// for types other than `ty::Infer(_)` (or `InferTy::Fresh*`). 114 ( 0.00%) pub fn maybe_from_ty(ty: Ty<'tcx>) -> Option { 11,915 ( 0.00%) match *ty.kind() { 2,646 ( 0.00%) ty::Infer(ty::TyVar(v)) => Some(TyOrConstInferVar::Ty(v)), . ty::Infer(ty::IntVar(v)) => Some(TyOrConstInferVar::TyInt(v)), . ty::Infer(ty::FloatVar(v)) => Some(TyOrConstInferVar::TyFloat(v)), . _ => None, . } 114 ( 0.00%) } . . /// Tries to extract an inference variable from a constant, returns `None` . /// for constants other than `ty::ConstKind::Infer(_)` (or `InferConst::Fresh`). . pub fn maybe_from_const(ct: &'tcx ty::Const<'tcx>) -> Option { . match ct.val { . ty::ConstKind::Infer(InferConst::Var(v)) => Some(TyOrConstInferVar::Const(v)), . _ => None, . } -- line 1749 ---------------------------------------- -- line 1755 ---------------------------------------- . } . . impl<'a, 'tcx> TypeFolder<'tcx> for ShallowResolver<'a, 'tcx> { . fn tcx<'b>(&'b self) -> TyCtxt<'tcx> { . self.infcx.tcx . } . . fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { 90,314 ( 0.01%) self.infcx.shallow_resolve_ty(ty) . } . 544 ( 0.00%) fn fold_const(&mut self, ct: &'tcx ty::Const<'tcx>) -> &'tcx ty::Const<'tcx> { 274 ( 0.00%) if let ty::Const { val: ty::ConstKind::Infer(InferConst::Var(vid)), .. } = ct { 5 ( 0.00%) self.infcx . .inner . .borrow_mut() . .const_unification_table() 3 ( 0.00%) .probe_value(*vid) . .val . .known() . .unwrap_or(ct) . } else { . ct . } 680 ( 0.00%) } . } . . impl<'tcx> TypeTrace<'tcx> { . pub fn span(&self) -> Span { 14 ( 0.00%) self.cause.span . } . . pub fn types( . cause: &ObligationCause<'tcx>, . a_is_expected: bool, . a: Ty<'tcx>, . b: Ty<'tcx>, . ) -> TypeTrace<'tcx> { -- line 1792 ---------------------------------------- -- line 1800 ---------------------------------------- . b: &'tcx ty::Const<'tcx>, . ) -> TypeTrace<'tcx> { . TypeTrace { cause: cause.clone(), values: Consts(ExpectedFound::new(a_is_expected, a, b)) } . } . } . . impl<'tcx> SubregionOrigin<'tcx> { . pub fn span(&self) -> Span { 35 ( 0.00%) match *self { 7 ( 0.00%) Subtype(ref a) => a.span(), . RelateObjectBound(a) => a, . RelateParamBound(a, ..) => a, . RelateRegionParamBound(a) => a, . Reborrow(a) => a, . ReborrowUpvar(a, _) => a, . DataBorrowed(_, a) => a, . ReferenceOutlivesReferent(_, a) => a, . CompareImplMethodObligation { span, .. } => span, -- line 1817 ---------------------------------------- -- line 1818 ---------------------------------------- . CompareImplTypeObligation { span, .. } => span, . } . } . . pub fn from_obligation_cause(cause: &traits::ObligationCause<'tcx>, default: F) -> Self . where . F: FnOnce() -> Self, . { 4,787 ( 0.00%) match *cause.code() { 653 ( 0.00%) traits::ObligationCauseCode::ReferenceOutlivesReferent(ref_type) => { 3,265 ( 0.00%) SubregionOrigin::ReferenceOutlivesReferent(ref_type, cause.span) . } . . traits::ObligationCauseCode::CompareImplMethodObligation { . impl_item_def_id, . trait_item_def_id, . } => SubregionOrigin::CompareImplMethodObligation { . span: cause.span, . impl_item_def_id, -- line 1836 ---------------------------------------- 389,829 ( 0.03%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/map.rs -------------------------------------------------------------------------------- Ir -- line 186 ---------------------------------------- . /// // use the values stored in map . /// ``` . pub struct HashMap { . pub(crate) hash_builder: S, . pub(crate) table: RawTable<(K, V), A>, . } . . impl Clone for HashMap { 467 ( 0.00%) fn clone(&self) -> Self { 1,067 ( 0.00%) HashMap { 53 ( 0.00%) hash_builder: self.hash_builder.clone(), 242 ( 0.00%) table: self.table.clone(), . } 214 ( 0.00%) } . . 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); . } . } . . /// 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)] 8 ( 0.00%) pub(crate) fn make_hasher(hash_builder: &S) -> impl Fn(&(Q, V)) -> u64 + '_ . where . K: Borrow, . Q: Hash, . S: BuildHasher, . { 34,998 ( 0.00%) move |val| make_hash::(hash_builder, &val.0) 12 ( 0.00%) } . . /// 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, . { 147,703 ( 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, . { 139,204 ( 0.01%) move |x| k.eq(x.borrow()) . } . . #[cfg(not(feature = "nightly"))] . #[cfg_attr(feature = "inline-more", inline)] . pub(crate) fn make_hash(hash_builder: &S, val: &Q) -> u64 . where . K: Borrow, . Q: Hash + ?Sized, -- line 248 ---------------------------------------- -- line 251 ---------------------------------------- . use core::hash::Hasher; . let mut state = hash_builder.build_hasher(); . val.hash(&mut state); . state.finish() . } . . #[cfg(feature = "nightly")] . #[cfg_attr(feature = "inline-more", inline)] 4 ( 0.00%) pub(crate) fn make_hash(hash_builder: &S, val: &Q) -> u64 . where . K: Borrow, . Q: Hash + ?Sized, . S: BuildHasher, . { 368 ( 0.00%) hash_builder.hash_one(val) 8 ( 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 275 ---------------------------------------- . 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)] 15 ( 0.00%) pub(crate) fn make_insert_hash(hash_builder: &S, val: &K) -> u64 . where . K: Hash, . S: BuildHasher, . { 4,633 ( 0.00%) hash_builder.hash_one(val) 10 ( 0.00%) } . . #[cfg(feature = "ahash")] . impl HashMap { . /// Creates an empty `HashMap`. . /// . /// The hash map is initially created with a capacity of 0, so it will not allocate until it . /// is first inserted into. . /// -- line 297 ---------------------------------------- -- line 366 ---------------------------------------- . /// . /// 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)] 68 ( 0.00%) pub const fn with_hasher(hash_builder: S) -> Self { 52,265 ( 0.00%) Self { . hash_builder, 34 ( 0.00%) table: RawTable::new(), . } 34 ( 0.00%) } . . /// Creates an empty `HashMap` with the specified capacity, using `hash_builder` . /// to hash the keys. . /// . /// The hash map will be able to hold at least `capacity` elements without . /// reallocating. If `capacity` is 0, the hash map will not allocate. . /// . /// Warning: `hash_builder` is normally randomly generated, and -- line 387 ---------------------------------------- -- line 436 ---------------------------------------- . /// use hashbrown::HashMap; . /// 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)] 8 ( 0.00%) pub fn with_hasher_in(hash_builder: S, alloc: A) -> Self { 296 ( 0.00%) Self { . hash_builder, 4 ( 0.00%) table: RawTable::new_in(alloc), . } 4 ( 0.00%) } . . /// Creates an empty `HashMap` with the specified capacity, using `hash_builder` . /// to hash the keys. It will be allocated with the given allocator. . /// . /// The hash map will be able to hold at least `capacity` elements without . /// reallocating. If `capacity` is 0, the hash map will not allocate. . /// . /// Warning: `hash_builder` is normally randomly generated, and -- line 457 ---------------------------------------- -- line 526 ---------------------------------------- . /// map.insert("b", 2); . /// map.insert("c", 3); . /// . /// for key in map.keys() { . /// println!("{}", key); . /// } . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 8 ( 0.00%) pub fn keys(&self) -> Keys<'_, K, V> { 18 ( 0.00%) Keys { inner: self.iter() } 4 ( 0.00%) } . . /// An iterator visiting all values in arbitrary order. . /// The iterator element type is `&'a V`. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; -- line 544 ---------------------------------------- -- line 599 ---------------------------------------- . /// map.insert("b", 2); . /// map.insert("c", 3); . /// . /// for (key, val) in map.iter() { . /// println!("key: {} val: {}", key, val); . /// } . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 8 ( 0.00%) pub fn iter(&self) -> Iter<'_, K, V> { . // Here we tie the lifetime of self to the iter. . unsafe { 8 ( 0.00%) Iter { 4 ( 0.00%) inner: self.table.iter(), . marker: PhantomData, . } . } 4 ( 0.00%) } . . /// An iterator visiting all key-value pairs in arbitrary order, . /// with mutable references to the values. . /// The iterator element type is `(&'a K, &'a mut V)`. . /// . /// # Examples . /// . /// ``` -- line 623 ---------------------------------------- -- line 662 ---------------------------------------- . /// use hashbrown::HashMap; . /// . /// 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)] 18 ( 0.00%) pub fn len(&self) -> usize { 4,744 ( 0.00%) self.table.len() 18 ( 0.00%) } . . /// Returns `true` if the map contains no elements. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; . /// . /// let mut a = HashMap::new(); . /// assert!(a.is_empty()); . /// a.insert(1, "a"); . /// assert!(!a.is_empty()); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 14 ( 0.00%) pub fn is_empty(&self) -> bool { 23,728 ( 0.00%) self.len() == 0 28 ( 0.00%) } . . /// Clears the map, returning all key-value pairs as an iterator. Keeps the . /// allocated memory for reuse. . /// . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; -- line 697 ---------------------------------------- -- 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 865 ---------------------------------------- . /// # Examples . /// . /// ``` . /// use hashbrown::HashMap; . /// let mut map: HashMap<&str, i32> = HashMap::new(); . /// map.reserve(10); . /// ``` . #[cfg_attr(feature = "inline-more", inline)] 16 ( 0.00%) pub fn reserve(&mut self, additional: usize) { 12 ( 0.00%) self.table 8 ( 0.00%) .reserve(additional, make_hasher::(&self.hash_builder)); 8 ( 0.00%) } . . /// Tries to reserve capacity for at least `additional` more elements to be inserted . /// in the given `HashMap`. The collection may reserve more space to avoid . /// frequent reallocations. . /// . /// # Errors . /// . /// If the capacity overflows, or the allocator reports a failure, then an error -- line 884 ---------------------------------------- -- 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)] 1,984 ( 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)) { 555 ( 0.00%) Entry::Occupied(OccupiedEntry { . hash, . key: Some(key), . elem, . table: self, . }) . } else { 1,925 ( 0.00%) Entry::Vacant(VacantEntry { . hash, . key, . table: self, . }) . } 2,480 ( 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 1041 ---------------------------------------- . /// use hashbrown::HashMap; . /// . /// let mut map = HashMap::new(); . /// map.insert(1, "a"); . /// assert_eq!(map.get(&1), Some(&"a")); . /// assert_eq!(map.get(&2), None); . /// ``` . #[inline] 6 ( 0.00%) pub fn get(&self, k: &Q) -> Option<&V> . where . K: Borrow, . Q: Hash + Eq, . { . // Avoid `Option::map` because it bloats LLVM IR. 171,618 ( 0.01%) match self.get_inner(k) { . Some(&(_, ref v)) => Some(v), 4 ( 0.00%) None => None, . } 6 ( 0.00%) } . . /// 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 . /// [`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 1067 ---------------------------------------- -- line 1086 ---------------------------------------- . // Avoid `Option::map` because it bloats LLVM IR. . match self.get_inner(k) { . Some(&(ref key, ref value)) => Some((key, value)), . None => None, . } . } . . #[inline] 10 ( 0.00%) fn get_inner(&self, k: &Q) -> Option<&(K, V)> . where . K: Borrow, . Q: Hash + Eq, . { 367,011 ( 0.03%) if self.table.is_empty() { 2 ( 0.00%) None . } else { 2 ( 0.00%) let hash = make_hash::(&self.hash_builder, k); . self.table.get(hash, equivalent_key(k)) . } 6 ( 0.00%) } . . /// 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 . /// the key type. . /// . /// [`Eq`]: https://doc.rust-lang.org/std/cmp/trait.Eq.html -- line 1113 ---------------------------------------- -- 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)] 110,697 ( 0.01%) pub fn contains_key(&self, k: &Q) -> bool . where . K: Borrow, . Q: Hash + Eq, . { . self.get_inner(k).is_some() 142,056 ( 0.01%) } . . /// 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)] 220 ( 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. 1,494 ( 0.00%) match self.get_inner_mut(k) { . Some(&mut (_, ref mut v)) => Some(v), . None => None, . } 440 ( 0.00%) } . . #[inline] . fn get_inner_mut(&mut self, k: &Q) -> Option<&mut (K, V)> . where . K: Borrow, . Q: Hash + Eq, . { 503 ( 0.00%) if self.table.is_empty() { . None . } else { . let hash = make_hash::(&self.hash_builder, k); 788 ( 0.00%) self.table.get_mut(hash, equivalent_key(k)) . } . } . . /// Attempts to get mutable references to `N` values in the map at once. . /// . /// Returns an array of length `N` with the results of each query. For soundness, at most one . /// mutable reference will be returned to any value. `None` will be returned if any of the . /// keys are duplicates or missing. -- line 1223 ---------------------------------------- -- 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)] 1,462,979 ( 0.12%) pub fn insert(&mut self, k: K, v: V) -> Option { . let hash = make_insert_hash::(&self.hash_builder, &k); 1,221 ( 0.00%) if let Some((_, item)) = self.table.get_mut(hash, equivalent_key(&k)) { . Some(mem::replace(item, v)) . } else { 786,472 ( 0.06%) self.table 744,885 ( 0.06%) .insert(hash, (k, v), make_hasher::(&self.hash_builder)); 82,936 ( 0.01%) None . } 1,334,710 ( 0.11%) } . . /// 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)] 13,369 ( 0.00%) pub fn remove(&mut self, k: &Q) -> Option . where . K: Borrow, . Q: Hash + Eq, . { . // Avoid `Option::map` because it bloats LLVM IR. 398,977 ( 0.03%) match self.remove_entry(k) { 7,379 ( 0.00%) Some((_, v)) => Some(v), 12,034 ( 0.00%) None => None, . } 30,518 ( 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); 104,002 ( 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 1737 ---------------------------------------- . . impl Default for HashMap . where . S: Default, . A: Default + Allocator + Clone, . { . /// Creates an empty `HashMap`, with the `Default` value for the hasher and allocator. . #[cfg_attr(feature = "inline-more", inline)] 6 ( 0.00%) fn default() -> Self { 18 ( 0.00%) Self::with_hasher_in(Default::default(), Default::default()) 4 ( 0.00%) } . } . . impl Index<&Q> for HashMap . where . K: Eq + Hash + Borrow, . Q: Eq + Hash, . S: BuildHasher, . A: Allocator + Clone, -- line 1755 ---------------------------------------- -- 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, . { 928,424 ( 0.08%) 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)] 2,230,018 ( 0.18%) 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) 2,452,584 ( 0.20%) } . . #[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, . { 258,412 ( 0.02%) match self.map.table.find(hash, |(k, _)| is_match(k)) { 1,316,124 ( 0.11%) Some(elem) => RawEntryMut::Occupied(RawOccupiedEntryMut { . elem, . table: &mut self.map.table, . hash_builder: &self.map.hash_builder, . }), 213,879 ( 0.02%) None => RawEntryMut::Vacant(RawVacantEntryMut { . table: &mut self.map.table, . hash_builder: &self.map.hash_builder, . }), . } . } . } . . impl<'a, K, V, S, A: Allocator + Clone> RawEntryBuilder<'a, K, V, S, A> { -- line 2251 ---------------------------------------- -- line 2260 ---------------------------------------- . { . let hash = make_hash::(&self.map.hash_builder, k); . self.from_key_hashed_nocheck(hash, k) . } . . /// Access an entry by a key and its hash. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::wrong_self_convention)] 418,590 ( 0.03%) pub fn from_key_hashed_nocheck(self, hash: u64, k: &Q) -> Option<(&'a K, &'a V)> . where . K: Borrow, . Q: Eq, . { 531,853 ( 0.04%) self.from_hash(hash, equivalent(k)) 766,091 ( 0.06%) } . . #[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, . { 645,133 ( 0.05%) match self.map.table.get(hash, |(k, _)| is_match(k)) { . Some(&(ref key, ref value)) => Some((key, value)), . None => None, . } . } . . /// Access an entry by hash. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::wrong_self_convention)] -- line 2289 ---------------------------------------- -- line 2624 ---------------------------------------- . /// and returns a mutable reference to it. . #[cfg_attr(feature = "inline-more", inline)] . #[allow(clippy::shadow_unrelated)] . pub fn insert_hashed_nocheck(self, hash: u64, key: K, value: V) -> (&'a mut K, &'a mut V) . where . K: Hash, . S: BuildHasher, . { 344,935 ( 0.03%) 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)] 541 ( 0.00%) fn into_iter(self) -> IntoIter { 11,881 ( 0.00%) IntoIter { 7,524 ( 0.00%) inner: self.table.into_iter(), . } 1,587 ( 0.00%) } . } . . impl<'a, K, V> Iterator for Iter<'a, K, V> { . type Item = (&'a K, &'a V); . . #[cfg_attr(feature = "inline-more", inline)] 4 ( 0.00%) fn next(&mut self) -> Option<(&'a K, &'a V)> { . // Avoid `Option::map` because it bloats LLVM IR. 36,521 ( 0.00%) match self.inner.next() { . Some(x) => unsafe { . let r = x.as_ref(); 439 ( 0.00%) Some((&r.0, &r.1)) . }, 4 ( 0.00%) None => None, . } 8 ( 0.00%) } . #[cfg_attr(feature = "inline-more", inline)] . fn size_hint(&self) -> (usize, Option) { 71 ( 0.00%) self.inner.size_hint() . } . } . impl ExactSizeIterator for Iter<'_, K, V> { . #[cfg_attr(feature = "inline-more", inline)] . fn len(&self) -> usize { . self.inner.len() . } . } -- line 3013 ---------------------------------------- -- line 3018 ---------------------------------------- . type Item = (&'a K, &'a mut V); . . #[cfg_attr(feature = "inline-more", inline)] . fn next(&mut self) -> Option<(&'a K, &'a mut V)> { . // Avoid `Option::map` because it bloats LLVM IR. . match self.inner.next() { . Some(x) => unsafe { . let r = x.as_mut(); 9 ( 0.00%) Some((&r.0, &mut r.1)) . }, . None => None, . } . } . #[cfg_attr(feature = "inline-more", inline)] . fn size_hint(&self) -> (usize, Option) { . self.inner.size_hint() . } -- line 3034 ---------------------------------------- -- line 3050 ---------------------------------------- . f.debug_list().entries(self.iter()).finish() . } . } . . impl Iterator for IntoIter { . type Item = (K, V); . . #[cfg_attr(feature = "inline-more", inline)] 36 ( 0.00%) fn next(&mut self) -> Option<(K, V)> { 1,287 ( 0.00%) self.inner.next() 18 ( 0.00%) } . #[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)] . fn len(&self) -> usize { -- line 3068 ---------------------------------------- -- line 3076 ---------------------------------------- . f.debug_list().entries(self.iter()).finish() . } . } . . impl<'a, K, V> Iterator for Keys<'a, K, V> { . type Item = &'a K; . . #[cfg_attr(feature = "inline-more", inline)] 138 ( 0.00%) fn next(&mut self) -> Option<&'a K> { . // Avoid `Option::map` because it bloats LLVM IR. 16 ( 0.00%) match self.inner.next() { . Some((k, _)) => Some(k), 4 ( 0.00%) None => None, . } 274 ( 0.00%) } . #[cfg_attr(feature = "inline-more", inline)] . fn size_hint(&self) -> (usize, Option) { . self.inner.size_hint() . } . } . impl ExactSizeIterator for Keys<'_, K, V> { . #[cfg_attr(feature = "inline-more", inline)] . fn len(&self) -> usize { -- line 3098 ---------------------------------------- -- line 3819 ---------------------------------------- . /// ``` . #[cfg_attr(feature = "inline-more", inline)] . pub fn insert(self, value: V) -> &'a mut V . where . K: Hash, . S: BuildHasher, . { . let table = &mut self.table.table; 138 ( 0.00%) let entry = table.insert_entry( . self.hash, . (self.key, value), . make_hasher::(&self.table.hash_builder), . ); . &mut entry.1 . } . . #[cfg_attr(feature = "inline-more", inline)] -- line 3835 ---------------------------------------- -- 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)] 12,117 ( 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. 10,343 ( 0.00%) let iter = iter.into_iter(); 4,917 ( 0.00%) let reserve = if self.is_empty() { 4 ( 0.00%) iter.size_hint().0 . } else { 379 ( 0.00%) (iter.size_hint().0 + 1) / 2 . }; 3 ( 0.00%) self.reserve(reserve); 7 ( 0.00%) iter.for_each(move |(k, v)| { 47,559 ( 0.00%) self.insert(k, v); . }); 7,447 ( 0.00%) } . . #[inline] . #[cfg(feature = "nightly")] . fn extend_one(&mut self, (k, v): (K, V)) { . self.insert(k, v); . } . . #[inline] -- line 4588 ---------------------------------------- 953,692 ( 0.08%) -------------------------------------------------------------------------------- -- 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. 30,753 ( 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(); 4,701 ( 0.00%) variant.encode(encoder)?; 3,134 ( 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); . 3,134 ( 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. 3,134 ( 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. 10,969 ( 0.00%) if leb128_bits >= 64 || (shorthand as u64) < (1 << leb128_bits) { . cache(encoder).insert(*value, shorthand); . } . . Ok(()) 26,148 ( 0.00%) } . . impl<'tcx, E: TyEncoder<'tcx>> Encodable for Ty<'tcx> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { 19,109 ( 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)?; 495 ( 0.00%) encode_with_shorthand(e, &self.skip_binder(), TyEncoder::predicate_shorthands) . } . } . . impl<'tcx, E: TyEncoder<'tcx>> Encodable for ty::Predicate<'tcx> { . fn encode(&self, e: &mut E) -> Result<(), E::Error> { . self.kind().encode(e) . } . } -- line 138 ---------------------------------------- -- line 141 ---------------------------------------- . fn encode(&self, e: &mut E) -> Result<(), E::Error> { . e.encode_alloc_id(self) . } . } . . macro_rules! encodable_via_deref { . ($($t:ty),+) => { . $(impl<'tcx, E: TyEncoder<'tcx>> Encodable for $t { 2,425 ( 0.00%) fn encode(&self, e: &mut E) -> Result<(), E::Error> { 485 ( 0.00%) (**self).encode(e) 2,370 ( 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 { 103,469 ( 0.01%) (self.peek_byte() & (SHORTHAND_OFFSET as u8)) != 0 . } . . fn decode_alloc_id(&mut self) -> AllocId; . } . . #[inline] . fn decode_arena_allocable<'tcx, D, T: ArenaAllocatable<'tcx> + Decodable>( . decoder: &mut D, . ) -> &'tcx T . where . D: TyDecoder<'tcx>, . { 20,964 ( 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)] 411,288 ( 0.03%) fn decode(decoder: &mut D) -> Ty<'tcx> { . // Handle shorthands first, if we have a usize > 0x80. 102,822 ( 0.01%) if decoder.positioned_at_shorthand() { . let pos = decoder.read_usize(); 137,204 ( 0.01%) assert!(pos >= SHORTHAND_OFFSET); 205,806 ( 0.02%) let shorthand = pos - SHORTHAND_OFFSET; . 205,806 ( 0.02%) decoder.cached_ty_for_shorthand(shorthand, |decoder| { . decoder.with_position(shorthand, Ty::decode) . }) . } else { 34,220 ( 0.00%) let tcx = decoder.tcx(); 68,440 ( 0.01%) tcx.mk_ty(ty::TyKind::decode(decoder)) . } 411,288 ( 0.03%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Binder<'tcx, ty::PredicateKind<'tcx>> { 3,882 ( 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( 647 ( 0.00%) if decoder.positioned_at_shorthand() { . let pos = decoder.read_usize(); 868 ( 0.00%) assert!(pos >= SHORTHAND_OFFSET); 434 ( 0.00%) let shorthand = pos - SHORTHAND_OFFSET; . . decoder.with_position(shorthand, ty::PredicateKind::decode) . } else { 639 ( 0.00%) ty::PredicateKind::decode(decoder) . }, . bound_vars, . ) 3,882 ( 0.00%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Predicate<'tcx> { . fn decode(decoder: &mut D) -> ty::Predicate<'tcx> { 1,941 ( 0.00%) let predicate_kind = Decodable::decode(decoder); 647 ( 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(); 49,249 ( 0.00%) let tcx = decoder.tcx(); . tcx.mk_substs( 127,933 ( 0.01%) (0..len).map::, _>(|_| Decodable::decode(decoder)), . ) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for mir::Place<'tcx> { . fn decode(decoder: &mut D) -> Self { . let local: mir::Local = Decodable::decode(decoder); . let len = decoder.read_usize(); 2,889 ( 0.00%) let projection = decoder.tcx().mk_place_elems( 3,880 ( 0.00%) (0..len).map::, _>(|_| Decodable::decode(decoder)), . ); . mir::Place { local, projection } . } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Region<'tcx> { 62,076 ( 0.01%) fn decode(decoder: &mut D) -> Self { 26,604 ( 0.00%) decoder.tcx().mk_region(Decodable::decode(decoder)) 70,944 ( 0.01%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for CanonicalVarInfos<'tcx> { . fn decode(decoder: &mut D) -> Self { . let len = decoder.read_usize(); . let interned: Vec> = . (0..len).map(|_| Decodable::decode(decoder)).collect(); . decoder.tcx().intern_canonical_var_infos(interned.as_slice()) -- line 287 ---------------------------------------- -- line 290 ---------------------------------------- . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for AllocId { . fn decode(decoder: &mut D) -> Self { . decoder.decode_alloc_id() . } . } . . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::SymbolName<'tcx> { 24 ( 0.00%) fn decode(decoder: &mut D) -> Self { 20 ( 0.00%) ty::SymbolName::new(decoder.tcx(), &decoder.read_str()) 36 ( 0.00%) } . } . . macro_rules! impl_decodable_via_ref { . ($($t:ty),+) => { . $(impl<'tcx, D: TyDecoder<'tcx>> Decodable for $t { . fn decode(decoder: &mut D) -> Self { . RefDecodable::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(); 16,244 ( 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(); 172 ( 0.00%) decoder.tcx().mk_poly_existential_predicates( 1,349 ( 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 { 3,914 ( 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::>(), . ) . } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for Allocation { 63 ( 0.00%) fn decode(decoder: &mut D) -> &'tcx Self { 27 ( 0.00%) decoder.tcx().intern_const_alloc(Decodable::decode(decoder)) 72 ( 0.00%) } . } . . impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [(ty::Predicate<'tcx>, Span)] { 5,369 ( 0.00%) fn decode(decoder: &mut D) -> &'tcx Self { 1,534 ( 0.00%) decoder.tcx().arena.alloc_from_iter( . (0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::>(), . ) 7,670 ( 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(); 3,360 ( 0.00%) decoder.tcx().mk_bound_variable_kinds( 4,878 ( 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] 575,995 ( 0.05%) fn $name(&mut self) -> $ty { 1,445,688 ( 0.12%) self.opaque.$name() 914,324 ( 0.07%) } . )* . } . } . . macro_rules! impl_arena_allocatable_decoder { . ([]$args:tt) => {}; . ([decode $(, $attrs:ident)*] . [$name:ident: $ty:ty]) => { -- line 412 ---------------------------------------- -- line 482 ---------------------------------------- . } . } . } . . macro_rules! impl_binder_encode_decode { . ($($t:ty),+ $(,)?) => { . $( . impl<'tcx, E: TyEncoder<'tcx>> Encodable for ty::Binder<'tcx, $t> { 159 ( 0.00%) fn encode(&self, e: &mut E) -> Result<(), E::Error> { 141 ( 0.00%) self.bound_vars().encode(e)?; 12 ( 0.00%) self.as_ref().skip_binder().encode(e) . } . } . impl<'tcx, D: TyDecoder<'tcx>> Decodable for ty::Binder<'tcx, $t> { 5,796 ( 0.00%) fn decode(decoder: &mut D) -> Self { . let bound_vars = Decodable::decode(decoder); . ty::Binder::bind_with_vars(Decodable::decode(decoder), bound_vars) 5,796 ( 0.00%) } . } . )* . } . } . . impl_binder_encode_decode! { . &'tcx ty::List>, . ty::FnSig<'tcx>, -- line 507 ---------------------------------------- 33,995 ( 0.00%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/hashbrown-0.12.0/src/raw/mod.rs -------------------------------------------------------------------------------- Ir -- line 110 ---------------------------------------- . /// Control byte value for an empty bucket. . 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] 12 ( 0.00%) fn is_full(ctrl: u8) -> bool { 1,110,022 ( 0.09%) ctrl & 0x80 == 0 16 ( 0.00%) } . . /// 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] 9 ( 0.00%) fn special_is_empty(ctrl: u8) -> bool { . debug_assert!(is_special(ctrl)); 102,658 ( 0.01%) ctrl & 0x01 != 0 12 ( 0.00%) } . . /// Primary hash function, used to select the initial bucket to probe from. . #[inline] . #[allow(clippy::cast_possible_truncation)] 24 ( 0.00%) fn h1(hash: u64) -> usize { . // On 32-bit platforms we simply ignore the higher hash bits. . hash as usize 16 ( 0.00%) } . . /// Secondary hash function, saved in the low 7 bits of the control byte. . #[inline] . #[allow(clippy::cast_possible_truncation)] 24 ( 0.00%) 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. 48 ( 0.00%) let hash_len = usize::min(mem::size_of::(), mem::size_of::()); 14,219,893 ( 1.16%) let top7 = hash >> (hash_len * 8 - 7); 8 ( 0.00%) (top7 & 0x7f) as u8 // truncation 16 ( 0.00%) } . . /// 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 . /// (skipping over 1 group), then 3 groups (skipping over 2 groups), and so on. . /// -- line 161 ---------------------------------------- -- 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" . ); . 147,296 ( 0.01%) self.stride += Group::WIDTH; 147,296 ( 0.01%) self.pos += self.stride; 123,201 ( 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)] 3 ( 0.00%) 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. 59,478 ( 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. 119,931 ( 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. 34,518 ( 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()) 4 ( 0.00%) } . . /// Returns the maximum effective capacity for the given bucket mask, taking . /// the maximum load factor into account. . #[inline] 6 ( 0.00%) fn bucket_mask_to_capacity(bucket_mask: usize) -> usize { 170,869 ( 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. 2 ( 0.00%) bucket_mask . } else { . // For larger tables we reserve 12.5% of the slots as empty. 36,100 ( 0.00%) ((bucket_mask + 1) / 8) * 7 . } 6 ( 0.00%) } . . /// 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, . ctrl_align: usize, . } . . impl TableLayout { . #[inline] 2 ( 0.00%) fn new() -> Self { 6 ( 0.00%) let layout = Layout::new::(); 4 ( 0.00%) Self { 6 ( 0.00%) size: layout.size(), 12 ( 0.00%) ctrl_align: usize::max(layout.align(), Group::WIDTH), . } 8 ( 0.00%) } . . #[inline] 26 ( 0.00%) fn calculate_layout_for(self, buckets: usize) -> Option<(Layout, usize)> { . debug_assert!(buckets.is_power_of_two()); . 4 ( 0.00%) let TableLayout { size, ctrl_align } = self; . // Manual layout calculation since Layout methods are not yet stable. . let ctrl_offset = 105,119 ( 0.01%) size.checked_mul(buckets)?.checked_add(ctrl_align - 1)? & !(ctrl_align - 1); 154,899 ( 0.01%) let len = ctrl_offset.checked_add(buckets + Group::WIDTH)?; . 18 ( 0.00%) Some(( 8 ( 0.00%) unsafe { Layout::from_size_align_unchecked(len, ctrl_align) }, . ctrl_offset, . )) 6 ( 0.00%) } . } . . /// Returns a Layout which describes the allocation required for a hash table, . /// and the offset of the control bytes in the allocation. . /// (the offset is also one past last element of buckets) . /// . /// Returns `None` if an overflow occurs. . #[cfg_attr(feature = "inline-more", inline)] 5 ( 0.00%) fn calculate_layout(buckets: usize) -> Option<(Layout, usize)> { 4 ( 0.00%) TableLayout::new::().calculate_layout_for(buckets) 2 ( 0.00%) } . . /// A reference to a hash table bucket containing a `T`. . /// . /// This is usually just a pointer to the element itself. However if the element . /// is a ZST, then we instead track the index of the element in the table so . /// that `erase` works properly. . pub struct Bucket { . // Actually it is pointer to next element than element itself -- line 280 ---------------------------------------- -- line 292 ---------------------------------------- . #[inline] . fn clone(&self) -> Self { . Self { ptr: self.ptr } . } . } . . impl Bucket { . #[inline] 75 ( 0.00%) unsafe fn from_base_index(base: NonNull, index: usize) -> Self { 60 ( 0.00%) let ptr = if mem::size_of::() == 0 { . // won't overflow because index must be less than length . (index + 1) as *mut T . } else { 60 ( 0.00%) base.as_ptr().sub(index) . }; 15 ( 0.00%) Self { 60 ( 0.00%) ptr: NonNull::new_unchecked(ptr), . } 45 ( 0.00%) } . #[inline] . unsafe fn to_base_index(&self, base: NonNull) -> usize { . if mem::size_of::() == 0 { . self.ptr.as_ptr() as usize - 1 . } else { . offset_from(base.as_ptr(), self.ptr.as_ptr()) . } . } . #[inline] 39 ( 0.00%) pub fn as_ptr(&self) -> *mut T { 52 ( 0.00%) if mem::size_of::() == 0 { . // Just return an arbitrary ZST pointer which is properly aligned . mem::align_of::() as *mut T . } else { 78 ( 0.00%) unsafe { self.ptr.as_ptr().sub(1) } . } 39 ( 0.00%) } . #[inline] 15 ( 0.00%) unsafe fn next_n(&self, offset: usize) -> Self { 12 ( 0.00%) let ptr = if mem::size_of::() == 0 { . (self.ptr.as_ptr() as usize + offset) as *mut T . } else { 15 ( 0.00%) self.ptr.as_ptr().sub(offset) . }; 3 ( 0.00%) Self { 12 ( 0.00%) ptr: NonNull::new_unchecked(ptr), . } 9 ( 0.00%) } . #[cfg_attr(feature = "inline-more", inline)] . pub unsafe fn drop(&self) { . self.as_ptr().drop_in_place(); . } . #[inline] 21 ( 0.00%) pub unsafe fn read(&self) -> T { 316 ( 0.00%) self.as_ptr().read() 6 ( 0.00%) } . #[inline] 9 ( 0.00%) pub unsafe fn write(&self, val: T) { 36 ( 0.00%) self.as_ptr().write(val); 6 ( 0.00%) } . #[inline] 4 ( 0.00%) pub unsafe fn as_ref<'a>(&self) -> &'a T { 4 ( 0.00%) &*self.as_ptr() 4 ( 0.00%) } . #[inline] 10 ( 0.00%) pub unsafe fn as_mut<'a>(&self) -> &'a mut T { 10 ( 0.00%) &mut *self.as_ptr() 10 ( 0.00%) } . #[cfg(feature = "raw")] . #[inline] . pub unsafe fn copy_from_nonoverlapping(&self, other: &Self) { . self.as_ptr().copy_from_nonoverlapping(other.as_ptr(), 1); . } . } . . /// A raw hash table with an unsafe API. -- line 366 ---------------------------------------- -- line 392 ---------------------------------------- . . impl RawTable { . /// Creates a new empty hash table without allocating any memory. . /// . /// 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] 51 ( 0.00%) pub const fn new() -> Self { 136 ( 0.00%) Self { 34 ( 0.00%) table: RawTableInner::new_in(Global), . marker: PhantomData, . } 34 ( 0.00%) } . . /// Attempts to allocate a new hash table with at least enough capacity . /// for inserting the given number of elements without reallocating. . #[cfg(feature = "raw")] . pub fn try_with_capacity(capacity: usize) -> Result { . Self::try_with_capacity_in(capacity, Global) . } . -- line 413 ---------------------------------------- -- line 421 ---------------------------------------- . impl RawTable { . /// 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] 165 ( 0.00%) pub fn new_in(alloc: A) -> Self { 845 ( 0.00%) Self { 110 ( 0.00%) table: RawTableInner::new_in(alloc), . marker: PhantomData, . } 110 ( 0.00%) } . . /// Allocates a new hash table with the given number of buckets. . /// . /// The control bytes are left uninitialized. . #[cfg_attr(feature = "inline-more", inline)] . unsafe fn new_uninitialized( . alloc: A, . buckets: usize, . fallibility: Fallibility, . ) -> Result { . debug_assert!(buckets.is_power_of_two()); . . Ok(Self { 60 ( 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 { 4,181 ( 0.00%) table: RawTableInner::fallible_with_capacity( . alloc, . TableLayout::new::(), . capacity, . fallibility, . )?, . marker: PhantomData, . }) . } -- line 474 ---------------------------------------- -- line 499 ---------------------------------------- . /// Deallocates the table without dropping any entries. . #[cfg_attr(feature = "inline-more", inline)] . unsafe fn free_buckets(&mut self) { . self.table.free_buckets(TableLayout::new::()); . } . . /// Returns pointer to one past last element of data table. . #[inline] 24 ( 0.00%) pub unsafe fn data_end(&self) -> NonNull { 60 ( 0.00%) NonNull::new_unchecked(self.table.ctrl.as_ptr().cast()) 24 ( 0.00%) } . . /// Returns pointer to start of data table. . #[inline] . #[cfg(feature = "nightly")] . pub unsafe fn data_start(&self) -> *mut T { . self.data_end().as_ptr().wrapping_sub(self.buckets()) . } . -- line 517 ---------------------------------------- -- line 518 ---------------------------------------- . /// Returns the index of a bucket from a `Bucket`. . #[inline] . pub unsafe fn bucket_index(&self, bucket: &Bucket) -> usize { . bucket.to_base_index(self.data_end()) . } . . /// Returns a pointer to an element in the table. . #[inline] 16 ( 0.00%) pub unsafe fn bucket(&self, index: usize) -> Bucket { . debug_assert_ne!(self.table.bucket_mask, 0); . debug_assert!(index < self.buckets()); 16 ( 0.00%) Bucket::from_base_index(self.data_end(), index) 8 ( 0.00%) } . . /// 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")] 8,173 ( 0.00%) pub unsafe fn erase_no_drop(&mut self, item: &Bucket) { 8,173 ( 0.00%) let index = self.bucket_index(item); . self.table.erase(index); 16,346 ( 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. 3,200 ( 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 { 13,146 ( 0.00%) self.erase_no_drop(&item); 59 ( 0.00%) item.read() . } . . /// Finds and removes an element from the table, returning it. . #[cfg_attr(feature = "inline-more", inline)] 315,791 ( 0.03%) pub fn remove_entry(&mut self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option { . // Avoid `Option::map` because it bloats LLVM IR. 674 ( 0.00%) match self.find(hash, eq) { 1,815 ( 0.00%) Some(bucket) => Some(unsafe { self.remove(bucket) }), 36,614 ( 0.00%) None => None, . } 457,984 ( 0.04%) } . . /// 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) { 5,080 ( 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 641 ---------------------------------------- . } . } . } . } . . /// Ensures that at least `additional` items can be inserted into the table . /// without reallocation. . #[cfg_attr(feature = "inline-more", inline)] 28 ( 0.00%) pub fn reserve(&mut self, additional: usize, hasher: impl Fn(&T) -> u64) { 237,880 ( 0.02%) if additional > self.table.growth_left { . // Avoid `Result::unwrap_or_else` because it bloats LLVM IR. 107,621 ( 0.01%) if self 2 ( 0.00%) .reserve_rehash(additional, hasher, Fallibility::Infallible) . .is_err() . { . unsafe { hint::unreachable_unchecked() } . } . } 20 ( 0.00%) } . . /// Tries to ensure that at least `additional` items can be inserted into . /// the table without reallocation. . #[cfg_attr(feature = "inline-more", inline)] . pub fn try_reserve( . &mut self, . additional: usize, . hasher: impl Fn(&T) -> u64, -- line 667 ---------------------------------------- -- line 671 ---------------------------------------- . } else { . Ok(()) . } . } . . /// Out-of-line slow path for `reserve` and `try_reserve`. . #[cold] . #[inline(never)] 237,745 ( 0.02%) fn reserve_rehash( . &mut self, . additional: usize, . hasher: impl Fn(&T) -> u64, . fallibility: Fallibility, . ) -> Result<(), TryReserveError> { . unsafe { 12 ( 0.00%) self.table.reserve_rehash_inner( . additional, 3 ( 0.00%) &|table, index| hasher(table.bucket::(index).as_ref()), . fallibility, 4 ( 0.00%) TableLayout::new::(), 5 ( 0.00%) if mem::needs_drop::() { 5 ( 0.00%) Some(mem::transmute(ptr::drop_in_place:: as unsafe fn(*mut T))) . } else { . None . }, . ) . } 156,147 ( 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)] 1,419,710 ( 0.12%) 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. 2,877 ( 0.00%) let old_ctrl = *self.table.ctrl(index); 1,009,527 ( 0.08%) 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 . } 1,047,703 ( 0.09%) } . . /// 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)] 499,232 ( 0.04%) pub fn insert_entry(&mut self, hash: u64, value: T, hasher: impl Fn(&T) -> u64) -> &mut T { 667 ( 0.00%) unsafe { self.insert(hash, value, hasher).as_mut() } 374,424 ( 0.03%) } . . /// 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"))] 1,145 ( 0.00%) pub unsafe fn insert_no_grow(&mut self, hash: u64, value: T) -> Bucket { 304,952 ( 0.02%) let (index, old_ctrl) = self.table.prepare_insert_slot(hash); 3,034 ( 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. 597,460 ( 0.05%) self.table.growth_left -= special_is_empty(old_ctrl) as usize; . 33 ( 0.00%) bucket.write(value); 492,537 ( 0.04%) self.table.items += 1; . bucket 2,256 ( 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] 4,980 ( 0.00%) pub fn find(&self, hash: u64, mut eq: impl FnMut(&T) -> bool) -> Option> { 1,318 ( 0.00%) let result = self.table.find_inner(hash, &mut |index| unsafe { 9,611 ( 0.00%) eq(self.bucket(index).as_ref()) 249 ( 0.00%) }); . . // Avoid `Option::map` because it bloats LLVM IR. 19 ( 0.00%) match result { 94 ( 0.00%) Some(index) => Some(unsafe { self.bucket(index) }), 6 ( 0.00%) None => None, . } 5,670 ( 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. 5,701 ( 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] 1,830 ( 0.00%) pub fn get_mut(&mut self, hash: u64, eq: impl FnMut(&T) -> bool) -> Option<&mut T> { . // Avoid `Option::map` because it bloats LLVM IR. 2,856 ( 0.00%) match self.find(hash, eq) { . Some(bucket) => Some(unsafe { bucket.as_mut() }), . None => None, . } 2,224 ( 0.00%) } . . /// 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. . /// . /// At most one mutable reference will be returned to any entry. `None` will be returned if any . /// of the hashes are duplicates. `None` will be returned if the hash is not found. . /// -- line 859 ---------------------------------------- -- line 913 ---------------------------------------- . /// more, but is guaranteed to be able to hold at least this many. . #[inline] . pub fn capacity(&self) -> usize { . self.table.items + self.table.growth_left . } . . /// Returns the number of elements in the table. . #[inline] 22 ( 0.00%) pub fn len(&self) -> usize { 11 ( 0.00%) self.table.items 22 ( 0.00%) } . . /// Returns `true` if the table contains no elements. . #[inline] 4 ( 0.00%) pub fn is_empty(&self) -> bool { 373,084 ( 0.03%) self.len() == 0 8 ( 0.00%) } . . /// Returns the number of buckets in the table. . #[inline] . pub fn buckets(&self) -> usize { . 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. . #[inline] 56 ( 0.00%) pub unsafe fn iter(&self) -> RawIter { 56 ( 0.00%) let data = Bucket::from_base_index(self.data_end(), 0); 72 ( 0.00%) RawIter { 56 ( 0.00%) iter: RawIterRange::new(self.table.ctrl.as_ptr(), data, self.table.buckets()), 33,476 ( 0.00%) items: self.table.items, . } 16 ( 0.00%) } . . /// 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. . /// . /// It is up to the caller to ensure that the `RawTable` outlives the -- line 956 ---------------------------------------- -- line 991 ---------------------------------------- . } . . /// Returns an iterator which consumes all elements from the table. . /// . /// 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. 42 ( 0.00%) pub unsafe fn into_iter_from(self, iter: RawIter) -> RawIntoIter { 12 ( 0.00%) debug_assert_eq!(iter.len(), self.len()); . 12 ( 0.00%) let alloc = self.table.alloc.clone(); 3,514 ( 0.00%) let allocation = self.into_allocation(); 2,661 ( 0.00%) RawIntoIter { 4,349 ( 0.00%) iter, 36 ( 0.00%) allocation, . marker: PhantomData, . alloc, . } 12 ( 0.00%) } . . /// 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)] 36 ( 0.00%) pub(crate) fn into_allocation(self) -> Option<(NonNull, Layout)> { 1,432 ( 0.00%) let alloc = if self.table.is_empty_singleton() { 5 ( 0.00%) None . } else { . // Avoid `Option::unwrap_or_else` because it bloats LLVM IR. 21 ( 0.00%) let (layout, ctrl_offset) = match calculate_layout::(self.table.buckets()) { 8 ( 0.00%) Some(lco) => lco, . None => unsafe { hint::unreachable_unchecked() }, . }; 9 ( 0.00%) Some(( 477 ( 0.00%) unsafe { NonNull::new_unchecked(self.table.ctrl.as_ptr().sub(ctrl_offset)) }, . layout, . )) . }; 48 ( 0.00%) mem::forget(self); . alloc 12 ( 0.00%) } . } . . unsafe impl Send for RawTable . where . T: Send, . A: Send, . { . } -- line 1039 ---------------------------------------- -- line 1041 ---------------------------------------- . where . T: Sync, . A: Sync, . { . } . . impl RawTableInner { . #[inline] 216 ( 0.00%) const fn new_in(alloc: A) -> Self { 258,856 ( 0.02%) Self { . // Be careful to cast the entire slice to a raw pointer. 504 ( 0.00%) ctrl: unsafe { NonNull::new_unchecked(Group::static_empty() as *const _ as *mut u8) }, . bucket_mask: 0, . items: 0, . growth_left: 0, . alloc, . } 144 ( 0.00%) } . } . . impl RawTableInner { . #[cfg_attr(feature = "inline-more", inline)] 169,821 ( 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. 16 ( 0.00%) let (layout, ctrl_offset) = match table_layout.calculate_layout_for(buckets) { 12 ( 0.00%) Some(lco) => lco, . None => return Err(fallibility.capacity_overflow()), . }; . . // We need an additional check to ensure that the allocation doesn't . // 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. 4 ( 0.00%) if mem::size_of::() < 8 && layout.size() > isize::MAX as usize { . return Err(fallibility.capacity_overflow()); . } . 50,350 ( 0.00%) let ptr: NonNull = match do_alloc(&alloc, layout) { 6 ( 0.00%) Ok(block) => block.cast(), . Err(_) => return Err(fallibility.alloc_err(layout)), . }; . 9 ( 0.00%) let ctrl = NonNull::new_unchecked(ptr.as_ptr().add(ctrl_offset)); 95,845 ( 0.01%) Ok(Self { . ctrl, 45,727 ( 0.00%) bucket_mask: buckets - 1, . items: 0, 9 ( 0.00%) growth_left: bucket_mask_to_capacity(buckets - 1), . alloc, . }) 123,856 ( 0.01%) } . . #[inline] 18,039 ( 0.00%) fn fallible_with_capacity( . alloc: A, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result { 4,582 ( 0.00%) if capacity == 0 { 2,349 ( 0.00%) Ok(Self::new_in(alloc)) . } else { . unsafe { . let buckets = 17 ( 0.00%) capacity_to_buckets(capacity).ok_or_else(|| fallibility.capacity_overflow())?; . 76,694 ( 0.01%) let result = Self::new_uninitialized(alloc, table_layout, buckets, fallibility)?; 6 ( 0.00%) result.ctrl(0).write_bytes(EMPTY, result.num_ctrl_bytes()); . 10,819 ( 0.00%) Ok(result) . } . } 18,030 ( 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] 101,545 ( 0.01%) unsafe fn prepare_insert_slot(&self, hash: u64) -> (usize, u8) { 9 ( 0.00%) let index = self.find_insert_slot(hash); 101,545 ( 0.01%) let old_ctrl = *self.ctrl(index); 3 ( 0.00%) self.set_ctrl_h2(index, hash); 6 ( 0.00%) (index, old_ctrl) 203,072 ( 0.02%) } . . /// Searches for an empty or deleted bucket which is suitable for inserting . /// a new element. . /// . /// There must be at least 1 empty bucket in the table. . #[inline] 12 ( 0.00%) fn find_insert_slot(&self, hash: u64) -> usize { 9 ( 0.00%) let mut probe_seq = self.probe_seq(hash); 3 ( 0.00%) loop { . unsafe { 24 ( 0.00%) let group = Group::load(self.ctrl(probe_seq.pos)); 728,095 ( 0.06%) if let Some(bit) = group.match_empty_or_deleted().lowest_set_bit() { 2,119,748 ( 0.17%) 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). 958,818 ( 0.08%) 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(); . } . 6 ( 0.00%) return result; . } . } . probe_seq.move_next(self.bucket_mask); . } 9 ( 0.00%) } . . /// 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] 60 ( 0.00%) fn find_inner(&self, hash: u64, eq: &mut dyn FnMut(usize) -> bool) -> Option { 15 ( 0.00%) let h2_hash = h2(hash); 15 ( 0.00%) let mut probe_seq = self.probe_seq(hash); . 43,033 ( 0.00%) loop { 40 ( 0.00%) let group = unsafe { Group::load(self.ctrl(probe_seq.pos)) }; . 1,671,076 ( 0.14%) for bit in group.match_byte(h2_hash) { 3,010,731 ( 0.25%) let index = (probe_seq.pos + bit) & self.bucket_mask; . 2,211,684 ( 0.18%) if likely(eq(index)) { 4 ( 0.00%) return Some(index); . } . } . 604,386 ( 0.05%) if likely(group.match_empty().any_bit_set()) { 3 ( 0.00%) return None; . } . . probe_seq.move_next(self.bucket_mask); . } 20 ( 0.00%) } . . #[allow(clippy::mut_mut)] . #[inline] . unsafe fn prepare_rehash_in_place(&mut self) { . // Bulk convert all full control bytes to DELETED, and all DELETED . // control bytes to EMPTY. This effectively frees up all buckets . // containing a DELETED entry. 3 ( 0.00%) for i in (0..self.buckets()).step_by(Group::WIDTH) { . let group = Group::load_aligned(self.ctrl(i)); . let group = group.convert_special_to_empty_and_full_to_deleted(); . group.store_aligned(self.ctrl(i)); . } . . // Fix up the trailing control bytes. See the comments in set_ctrl . // for the handling of tables smaller than the group width. 3 ( 0.00%) if self.buckets() < Group::WIDTH { . self.ctrl(0) . .copy_to(self.ctrl(Group::WIDTH), self.buckets()); . } else { . self.ctrl(0) . .copy_to(self.ctrl(self.buckets()), Group::WIDTH); . } . } . . #[inline] 12 ( 0.00%) unsafe fn bucket(&self, index: usize) -> Bucket { . debug_assert_ne!(self.bucket_mask, 0); . debug_assert!(index < self.buckets()); 12 ( 0.00%) Bucket::from_base_index(self.data_end(), index) 6 ( 0.00%) } . . #[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(); 2,670,920 ( 0.22%) base.sub((index + 1) * size_of) . } . . #[inline] 6 ( 0.00%) unsafe fn data_end(&self) -> NonNull { 15 ( 0.00%) NonNull::new_unchecked(self.ctrl.as_ptr().cast()) 6 ( 0.00%) } . . /// 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] 56 ( 0.00%) fn probe_seq(&self, hash: u64) -> ProbeSeq { 16 ( 0.00%) ProbeSeq { 10,601,005 ( 0.87%) pos: h1(hash) & self.bucket_mask, . stride: 0, . } 32 ( 0.00%) } . . /// 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] . unsafe fn prepare_insert_no_grow(&mut self, hash: u64) -> Result { . let index = self.find_insert_slot(hash); . let old_ctrl = *self.ctrl(index); -- line 1260 ---------------------------------------- -- 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) { 1,263,606 ( 0.10%) self.growth_left -= special_is_empty(old_ctrl) as usize; . self.set_ctrl_h2(index, hash); 1,009,336 ( 0.08%) 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; 33 ( 0.00%) probe_index(i) == probe_index(new_i) . } . . /// Sets a control byte to the hash, and possibly also the replicated control byte at . /// the end of the array. . #[inline] 27 ( 0.00%) unsafe fn set_ctrl_h2(&self, index: usize, hash: u64) { 12 ( 0.00%) self.set_ctrl(index, h2(hash)); 6 ( 0.00%) } . . #[inline] . unsafe fn replace_ctrl_h2(&self, index: usize, hash: u64) -> u8 { . let prev_ctrl = *self.ctrl(index); . self.set_ctrl_h2(index, hash); . prev_ctrl . } . . /// Sets a control byte, and possibly also the replicated control byte at . /// the end of the array. . #[inline] 30 ( 0.00%) unsafe fn set_ctrl(&self, index: usize, ctrl: u8) { . // Replicate the first Group::WIDTH control bytes at the end of . // the array without using a branch: . // - If index >= Group::WIDTH then index == index2. . // - Otherwise index2 == self.bucket_mask + 1 + index. . // . // The very last replicated control byte is never actually read because . // we mask the initial index for unaligned loads, but we write it . // anyways because it makes the set_ctrl implementation simpler. -- line 1309 ---------------------------------------- -- 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] | . // --------------------------------------------- 2,066,865 ( 0.17%) let index2 = ((index.wrapping_sub(Group::WIDTH)) & self.bucket_mask) + Group::WIDTH; . 688,860 ( 0.06%) *self.ctrl(index) = ctrl; 688,924 ( 0.06%) *self.ctrl(index2) = ctrl; 6 ( 0.00%) } . . /// Returns a pointer to a control byte. . #[inline] 88 ( 0.00%) unsafe fn ctrl(&self, index: usize) -> *mut u8 { . debug_assert!(index < self.num_ctrl_bytes()); 66 ( 0.00%) self.ctrl.as_ptr().add(index) 44 ( 0.00%) } . . #[inline] 20 ( 0.00%) fn buckets(&self) -> usize { 121,058 ( 0.01%) self.bucket_mask + 1 20 ( 0.00%) } . . #[inline] 2 ( 0.00%) fn num_ctrl_bytes(&self) -> usize { 97,020 ( 0.01%) self.bucket_mask + 1 + Group::WIDTH 2 ( 0.00%) } . . #[inline] 252 ( 0.00%) fn is_empty_singleton(&self) -> bool { 497,229 ( 0.04%) self.bucket_mask == 0 504 ( 0.00%) } . . #[allow(clippy::mut_mut)] . #[inline] 17 ( 0.00%) unsafe fn prepare_resize( . &self, . table_layout: TableLayout, . capacity: usize, . fallibility: Fallibility, . ) -> Result, TryReserveError> { 1 ( 0.00%) debug_assert!(self.items <= capacity); . . // Allocate and initialize the new table. 3,687 ( 0.00%) let mut new_table = RawTableInner::fallible_with_capacity( 1 ( 0.00%) self.alloc.clone(), . table_layout, . capacity, . fallibility, . )?; 62,875 ( 0.01%) new_table.growth_left -= self.items; 2 ( 0.00%) 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. 27 ( 0.00%) Ok(guard(new_table, move |self_| { 29,162 ( 0.00%) if !self_.is_empty_singleton() { . self_.free_buckets(table_layout); . } 2 ( 0.00%) })) 4 ( 0.00%) } . . /// Reserves or rehashes to make room for `additional` more elements. . /// . /// This uses dynamic dispatch to reduce the amount of . /// code generated, but it is eliminated by LLVM optimizations when inlined. . #[allow(clippy::inline_always)] . #[inline(always)] . unsafe fn reserve_rehash_inner( -- line 1387 ---------------------------------------- -- 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. 58,329 ( 0.00%) let new_items = match self.items.checked_add(additional) { 4 ( 0.00%) Some(new_items) => new_items, . None => return Err(fallibility.capacity_overflow()), . }; 58,321 ( 0.00%) let full_capacity = bucket_mask_to_capacity(self.bucket_mask); 122,197 ( 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); 2 ( 0.00%) Ok(()) . } else { . // Otherwise, conservatively resize to at least the next size up . // to avoid churning deletes into frequent rehashes. . self.resize_inner( 29,167 ( 0.00%) usize::max(new_items, full_capacity + 1), . hasher, . fallibility, . layout, . ) . } 2 ( 0.00%) } . . /// Allocates a new table of a different size and moves the contents of the . /// current table into it. . /// . /// This uses dynamic dispatch to reduce the amount of . /// code generated, but it is eliminated by LLVM optimizations when inlined. . #[allow(clippy::inline_always)] . #[inline(always)] . unsafe fn resize_inner( . &mut self, . capacity: usize, . hasher: &dyn Fn(&mut Self, usize) -> u64, . fallibility: Fallibility, . layout: TableLayout, . ) -> Result<(), TryReserveError> { 9,100 ( 0.00%) let mut new_table = self.prepare_resize(layout, capacity, fallibility)?; . . // Copy all elements to the new table. 41 ( 0.00%) for i in 0..self.buckets() { 403,575 ( 0.03%) 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 1452 ---------------------------------------- . layout.size, . ); . } . . // 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). 5 ( 0.00%) mem::swap(self, &mut new_table); . 29,159 ( 0.00%) Ok(()) 4 ( 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. . /// . /// This uses dynamic dispatch to reduce the amount of . /// code generated, but it is eliminated by LLVM optimizations when inlined. -- line 1471 ---------------------------------------- -- line 1496 ---------------------------------------- . } . self_.growth_left = bucket_mask_to_capacity(self_.bucket_mask) - self_.items; . }); . . // At this point, DELETED elements are elements that we haven't . // rehashed yet. Find them and re-insert them at their ideal . // position. . 'outer: for i in 0..guard.buckets() { 64 ( 0.00%) if *guard.ctrl(i) != DELETED { . continue; . } . . let i_p = guard.bucket_ptr(i, size_of); . . 'inner: loop { . // Hash the current item . let hash = hasher(*guard, i); -- line 1512 ---------------------------------------- -- line 1515 ---------------------------------------- . let new_i = guard.find_insert_slot(hash); . let new_i_p = guard.bucket_ptr(new_i, size_of); . . // Probing works by scanning through all of the control . // bytes in groups, which may not be aligned to the group . // size. If both the new and old position fall within the . // same unaligned group, then there is no benefit in moving . // it and we can just continue to the next item. 11 ( 0.00%) if likely(guard.is_in_same_group(i, new_i, hash)) { . guard.set_ctrl_h2(i, hash); . continue 'outer; . } . . // We are moving the current item to a new position. Write . // our H2 to the control byte of the new position. . let prev_ctrl = guard.replace_ctrl_h2(new_i, hash); . if prev_ctrl == EMPTY { -- line 1531 ---------------------------------------- -- line 1541 ---------------------------------------- . // swapped into the old slot. . debug_assert_eq!(prev_ctrl, DELETED); . ptr::swap_nonoverlapping(i_p, new_i_p, size_of); . continue 'inner; . } . } . } . 3 ( 0.00%) guard.growth_left = bucket_mask_to_capacity(guard.bucket_mask) - guard.items; . . mem::forget(guard); . } . . #[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( 18,415 ( 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) { 3,383 ( 0.00%) if !self.is_empty_singleton() { . unsafe { . self.ctrl(0).write_bytes(EMPTY, self.num_ctrl_bytes()); . } . } 4,030 ( 0.00%) self.items = 0; 3,404 ( 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))); 70,823 ( 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. 283,292 ( 0.02%) let ctrl = if empty_before.leading_zeros() + empty_after.trailing_zeros() >= Group::WIDTH { . DELETED . } else { 350,955 ( 0.03%) self.growth_left += 1; . EMPTY . }; . self.set_ctrl(index, ctrl); 283,292 ( 0.02%) self.items -= 1; . } . } . . impl Clone for RawTable { 1,467 ( 0.00%) fn clone(&self) -> Self { 467 ( 0.00%) if self.table.is_empty_singleton() { 106 ( 0.00%) 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(), . Fallibility::Infallible, -- line 1616 ---------------------------------------- -- 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) . } . } 1,339 ( 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; 24 ( 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)] 244,656 ( 0.02%) fn drop(&mut self) { 210,873 ( 0.02%) if !self.table.is_empty_singleton() { . unsafe { . self.drop_elements(); . self.free_buckets(); . } . } 262,082 ( 0.02%) } . } . #[cfg(not(feature = "nightly"))] . impl Drop for RawTable { . #[cfg_attr(feature = "inline-more", inline)] . fn drop(&mut self) { . if !self.table.is_empty_singleton() { . unsafe { . self.drop_elements(); -- line 1813 ---------------------------------------- -- line 1817 ---------------------------------------- . } . } . . impl IntoIterator for RawTable { . type Item = T; . type IntoIter = RawIntoIter; . . #[cfg_attr(feature = "inline-more", inline)] 3,484 ( 0.00%) fn into_iter(self) -> RawIntoIter { . unsafe { 30 ( 0.00%) let iter = self.iter(); 90 ( 0.00%) self.into_iter_from(iter) . } 4,337 ( 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 1848 ---------------------------------------- . end: *const u8, . } . . impl RawIterRange { . /// Returns a `RawIterRange` covering a subset of a table. . /// . /// The control byte address must be aligned to the group size. . #[cfg_attr(feature = "inline-more", inline)] 96 ( 0.00%) unsafe fn new(ctrl: *const u8, data: Bucket, len: usize) -> Self { . debug_assert_ne!(len, 0); . debug_assert_eq!(ctrl as usize % Group::WIDTH, 0); 8 ( 0.00%) let end = ctrl.add(len); . . // Load the first group and advance ctrl to point to the next group 48 ( 0.00%) let current_group = Group::load_aligned(ctrl).match_full(); 8 ( 0.00%) let next_ctrl = ctrl.add(Group::WIDTH); . 32 ( 0.00%) Self { . current_group, . data, . next_ctrl, . end, . } 16 ( 0.00%) } . . /// Splits a `RawIterRange` into two halves. . /// . /// Returns `None` if the remaining range is smaller than or equal to the . /// group width. . #[cfg_attr(feature = "inline-more", inline)] . #[cfg(feature = "rayon")] . pub(crate) fn split(mut self) -> (Self, Option>) { -- line 1879 ---------------------------------------- -- line 1931 ---------------------------------------- . } . } . } . . impl Iterator for RawIterRange { . type Item = Bucket; . . #[cfg_attr(feature = "inline-more", inline)] 44 ( 0.00%) fn next(&mut self) -> Option> { . unsafe { . loop { 86,787 ( 0.01%) if let Some(index) = self.current_group.lowest_set_bit() { 11,087 ( 0.00%) self.current_group = self.current_group.remove_lowest_bit(); 16,894 ( 0.00%) return Some(self.data.next_n(index)); . } . 70,519 ( 0.01%) if self.next_ctrl >= self.end { 8 ( 0.00%) 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). 2,550 ( 0.00%) self.current_group = Group::load_aligned(self.next_ctrl).match_full(); 1,258 ( 0.00%) self.data = self.data.next_n(Group::WIDTH); 5,701 ( 0.00%) self.next_ctrl = self.next_ctrl.add(Group::WIDTH); . } . } 33 ( 0.00%) } . . #[inline] . fn size_hint(&self) -> (usize, Option) { . // We don't have an item count, so just guess based on the range size. . ( . 0, . Some(unsafe { offset_from(self.end, self.next_ctrl) + Group::WIDTH }), . ) -- line 1969 ---------------------------------------- -- line 2101 ---------------------------------------- . } . } . } else { . // We must have already iterated past the removed item. . } . } . } . 12 ( 0.00%) unsafe fn drop_elements(&mut self) { 1,580 ( 0.00%) if mem::needs_drop::() && self.len() != 0 { . for item in self { . item.drop(); . } . } 12 ( 0.00%) } . } . . impl Clone for RawIter { . #[cfg_attr(feature = "inline-more", inline)] . fn clone(&self) -> Self { . Self { . iter: self.iter.clone(), . items: self.items, -- line 2123 ---------------------------------------- -- line 2124 ---------------------------------------- . } . } . } . . impl Iterator for RawIter { . type Item = Bucket; . . #[cfg_attr(feature = "inline-more", inline)] 12,314 ( 0.00%) fn next(&mut self) -> Option> { 30,974 ( 0.00%) if let Some(b) = self.iter.next() { 109,266 ( 0.01%) self.items -= 1; 3 ( 0.00%) 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); 8 ( 0.00%) None . } 24,595 ( 0.00%) } . . #[inline] 18 ( 0.00%) fn size_hint(&self) -> (usize, Option) { 54 ( 0.00%) (self.items, Some(self.items)) 12 ( 0.00%) } . } . . impl ExactSizeIterator for RawIter {} . impl FusedIterator for RawIter {} . . /// Iterator which consumes a table and returns elements. . pub struct RawIntoIter { . iter: RawIter, -- line 2156 ---------------------------------------- -- 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)] 2,648 ( 0.00%) fn drop(&mut self) { . unsafe { . // Drop all remaining elements 6 ( 0.00%) self.iter.drop_elements(); . . // Free the table 6,552 ( 0.00%) if let Some((ptr, layout)) = self.allocation { 2 ( 0.00%) self.alloc.deallocate(ptr, layout); . } . } 496 ( 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)] 635 ( 0.00%) fn next(&mut self) -> Option { 606 ( 0.00%) unsafe { Some(self.iter.next()?.read()) } 1,309 ( 0.00%) } . . #[inline] . fn size_hint(&self) -> (usize, Option) { 4 ( 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)] 584 ( 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. 73 ( 0.00%) self.orig_table . .as_ptr() . .copy_from_nonoverlapping(&*self.table, 1); . } 584 ( 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 ---------------------------------------- 5,834,194 ( 0.48%) -------------------------------------------------------------------------------- -- 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%) } . 31,235 ( 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 } 103,653 ( 0.01%) } . . /// 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. 13 ( 0.00%) pub fn from_str(string: &str) -> Ident { 13 ( 0.00%) Ident::with_dummy_span(Symbol::intern(string)) 52 ( 0.00%) } . . /// Maps a string and a span to an identifier. 60 ( 0.00%) pub fn from_str_and_span(string: &str, span: Span) -> Ident { 30 ( 0.00%) Ident::new(Symbol::intern(string), span) 60 ( 0.00%) } . . /// Replaces `lo` and `hi` with those from `span`, but keep hygiene context. 10,104 ( 0.00%) pub fn with_span_pos(self, span: Span) -> Ident { . Ident::new(self.name, span.with_ctxt(self.span.ctxt())) 6,315 ( 0.00%) } . 40 ( 0.00%) pub fn without_first_quote(self) -> Ident { 40 ( 0.00%) Ident::new(Symbol::intern(self.as_str().trim_start_matches('\'')), self.span) 25 ( 0.00%) } . . /// "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. 70,695 ( 0.01%) pub fn normalize_to_macros_2_0(self) -> Ident { . Ident::new(self.name, self.span.normalize_to_macros_2_0()) 54,985 ( 0.00%) } . . /// "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. 7,560 ( 0.00%) pub fn normalize_to_macro_rules(self) -> Ident { . Ident::new(self.name, self.span.normalize_to_macro_rules()) 5,880 ( 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 { 114 ( 0.00%) self.name.as_str() . } . } . . impl PartialEq for Ident { 19,566 ( 0.00%) fn eq(&self, rhs: &Self) -> bool { 48,000 ( 0.00%) self.name == rhs.name && self.span.ctxt() == rhs.span.ctxt() 26,088 ( 0.00%) } . } . . impl Hash for Ident { . fn hash(&self, state: &mut H) { 10 ( 0.00%) self.name.hash(state); 6,182 ( 0.00%) self.span.ctxt().hash(state); . } . } . . impl fmt::Debug for Ident { . fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { . fmt::Display::fmt(self, f)?; . fmt::Debug::fmt(&self.span.ctxt(), f) . } . } . . /// This implementation is supposed to be used in error messages, so it's expected to be identical . /// to printing the original identifier token written in source code (`token_to_string`), . /// except that AST identifiers don't keep the rawness flag, so we have to guess it. . impl fmt::Display for Ident { 440 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 552 ( 0.00%) fmt::Display::fmt(&IdentPrinter::new(self.name, self.is_raw_guess(), None), f) 440 ( 0.00%) } . } . . /// This is the most general way to print identifiers. . /// AST pretty-printer is used as a fallback for turning AST structures into token streams for . /// proc macros. Additionally, proc macros may stringify their input and expect it survive the . /// stringification (especially true for proc macro derives written between Rust 1.15 and 1.30). . /// So we need to somehow pretty-print `$crate` in a way preserving at least some of its . /// hygiene data, most importantly name of the crate it refers to. -- line 1613 ---------------------------------------- -- line 1622 ---------------------------------------- . is_raw: bool, . /// Span used for retrieving the crate name to which `$crate` refers to, . /// if this field is `None` then the `$crate` conversion doesn't happen. . convert_dollar_crate: Option, . } . . impl IdentPrinter { . /// The most general `IdentPrinter` constructor. Do not use this. 301 ( 0.00%) pub fn new(symbol: Symbol, is_raw: bool, convert_dollar_crate: Option) -> IdentPrinter { 1,934 ( 0.00%) IdentPrinter { symbol, is_raw, convert_dollar_crate } 301 ( 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. 84 ( 0.00%) pub fn for_ast_ident(ident: Ident, is_raw: bool) -> IdentPrinter { 84 ( 0.00%) IdentPrinter::new(ident.name, is_raw, Some(ident.span)) 42 ( 0.00%) } . } . . impl fmt::Display for IdentPrinter { 2,275 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 910 ( 0.00%) if self.is_raw { . f.write_str("r#")?; 455 ( 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)] 2,440 ( 0.00%) pub struct MacroRulesNormalizedIdent(Ident); . . impl MacroRulesNormalizedIdent { . pub fn new(ident: Ident) -> Self { 605 ( 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 1685 ---------------------------------------- . /// . /// 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. 1,475 ( 0.00%) #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] 25,273 ( 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)) 124 ( 0.00%) } . . /// Maps a string to its interned representation. 565,326 ( 0.05%) pub fn intern(string: &str) -> Self { . with_session_globals(|session_globals| session_globals.symbol_interner.intern(string)) 565,326 ( 0.05%) } . . /// 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. 80,643 ( 0.01%) pub fn as_str(&self) -> &str { 26,881 ( 0.00%) with_session_globals(|session_globals| unsafe { . std::mem::transmute::<&str, &str>(session_globals.symbol_interner.get(*self)) . }) 107,524 ( 0.01%) } . . pub fn as_u32(self) -> u32 { . self.0.as_u32() . } . . pub fn is_empty(self) -> bool { . self == kw::Empty . } . . /// This method is supposed to be used in error messages, so it's expected to be . /// identical to printing the original identifier token written in source code . /// (`token_to_string`, `Ident::to_string`), except that symbols don't keep the rawness flag . /// or edition, so we have to guess the rawness using the global edition. 12 ( 0.00%) pub fn to_ident_string(self) -> String { . Ident::with_dummy_span(self).to_string() 12 ( 0.00%) } . } . . 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 { 5,634 ( 0.00%) fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { 20,997 ( 0.00%) fmt::Display::fmt(self.as_str(), f) . } . } . . impl Encodable for Symbol { . fn encode(&self, s: &mut S) -> Result<(), S::Error> { 15,271 ( 0.00%) s.emit_str(self.as_str()) . } . } . . impl Decodable for Symbol { . #[inline] 26,314 ( 0.00%) fn decode(d: &mut D) -> Symbol { 169,089 ( 0.01%) Symbol::intern(&d.read_str()) . } . } . . impl HashStable for Symbol { . #[inline] 1,134 ( 0.00%) fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { 11,999 ( 0.00%) self.as_str().hash_stable(hcx, hasher); 1,104 ( 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(); 102,790 ( 0.01%) if let Some(&name) = inner.names.get(string) { . return name; . } . 11,419 ( 0.00%) let name = Symbol::new(inner.strings.len() as u32); . . // SAFETY: we convert from `&str` to `&[u8]`, clone it into the arena, . // and immediately convert the clone back to `&[u8], all because there . // is no `inner.arena.alloc_str()` method. This is clearly safe. . let string: &str = . unsafe { str::from_utf8_unchecked(inner.arena.alloc_slice(string.as_bytes())) }; . . // SAFETY: we can extend the arena allocation to `'static` because we -- line 1824 ---------------------------------------- -- line 1831 ---------------------------------------- . // #91445 for details. . inner.names.insert(string, name); . name . } . . // Get the symbol as a string. `Symbol::as_str()` should be used in . // preference to this function. . fn get(&self, symbol: Symbol) -> &str { 80,643 ( 0.01%) self.0.lock().strings[symbol.0.as_usize()] . } . } . . // This module has a very short name because it's used a lot. . /// This module contains all the defined keyword `Symbol`s. . /// . /// Given that `kw` is imported, use them like `kw::keyword_name`. . /// For example `kw::Loop` or `kw::Break`. -- line 1847 ---------------------------------------- -- line 1863 ---------------------------------------- . . // Used from a macro in `librustc_feature/accepted.rs` . pub use super::kw::MacroRules as macro_rules; . . /// Get the symbol for an integer. . /// . /// The first few non-negative integers each have a static symbol and therefore . /// are fast. 252 ( 0.00%) pub fn integer + Copy + ToString>(n: N) -> Symbol { 198 ( 0.00%) if let Result::Ok(idx) = n.try_into() { 36 ( 0.00%) if idx < 10 { 248 ( 0.00%) return Symbol::new(super::SYMBOL_DIGITS_BASE + idx as u32); . } . } 8 ( 0.00%) Symbol::intern(&n.to_string()) 32 ( 0.00%) } . } . . impl Symbol { . fn is_special(self) -> bool { . self <= kw::Underscore . } . . fn is_used_keyword_always(self) -> bool { 120 ( 0.00%) self >= kw::As && self <= kw::While . } . . fn is_used_keyword_conditional(self, edition: impl FnOnce() -> Edition) -> bool { 13,827 ( 0.00%) (self >= kw::Async && self <= kw::Dyn) && edition() >= Edition::Edition2018 . } . . fn is_unused_keyword_always(self) -> bool { 120 ( 0.00%) self >= kw::Abstract && self <= kw::Yield . } . . fn is_unused_keyword_conditional(self, edition: impl FnOnce() -> Edition) -> bool { 40 ( 0.00%) self == kw::Try && edition() >= Edition::Edition2018 . } . . pub fn is_reserved(self, edition: impl Copy + FnOnce() -> Edition) -> bool { 23,484 ( 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 { 59,143 ( 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 { 667 ( 0.00%) self == kw::True || self == kw::False 667 ( 0.00%) } . . /// Returns `true` if this symbol can be a raw identifier. . pub fn can_be_raw(self) -> bool { 1,740 ( 0.00%) self != kw::Empty && self != kw::Underscore && !self.is_path_segment_keyword() 3 ( 0.00%) } . } . . 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() 40 ( 0.00%) } . . /// Returns `true` if the token is a keyword used in the language. 40 ( 0.00%) pub fn is_used_keyword(self) -> bool { . // Note: `span.edition()` is relatively expensive, don't call it unless necessary. 40 ( 0.00%) self.name.is_used_keyword_always() . || self.name.is_used_keyword_conditional(|| self.span.edition()) 80 ( 0.00%) } . . /// Returns `true` if the token is a keyword reserved for possible future use. 40 ( 0.00%) pub fn is_unused_keyword(self) -> bool { . // Note: `span.edition()` is relatively expensive, don't call it unless necessary. 40 ( 0.00%) self.name.is_unused_keyword_always() . || self.name.is_unused_keyword_conditional(|| self.span.edition()) 80 ( 0.00%) } . . /// Returns `true` if the token is either a special identifier or a keyword. 3,839 ( 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()) 7,678 ( 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() 8,449 ( 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. 749 ( 0.00%) pub fn is_raw_guess(self) -> bool { . self.name.can_be_raw() && self.is_reserved() 1,498 ( 0.00%) } . } 94,624 ( 0.01%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/rust/worktree-benchmarking/compiler/rustc_mir_dataflow/src/drop_flag_effects.rs -------------------------------------------------------------------------------- Ir -- line 10 ---------------------------------------- . pub fn move_path_children_matching<'tcx, F>( . move_data: &MoveData<'tcx>, . path: MovePathIndex, . mut cond: F, . ) -> Option . where . F: FnMut(mir::PlaceElem<'tcx>) -> bool, . { 316 ( 0.00%) let mut next_child = move_data.move_paths[path].first_child; 846 ( 0.00%) while let Some(child_index) = next_child { . let move_path_children = &move_data.move_paths[child_index]; 728 ( 0.00%) if let Some(&elem) = move_path_children.place.projection.last() { 1,239 ( 0.00%) if cond(elem) { . return Some(child_index); . } . } . next_child = move_path_children.next_sibling; . } . . None . } -- line 30 ---------------------------------------- -- line 48 ---------------------------------------- . // . // FIXME: we have to do something for moving slice patterns. . fn place_contents_drop_state_cannot_differ<'tcx>( . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . place: mir::Place<'tcx>, . ) -> bool { . let ty = place.ty(body, tcx).ty; 215,758 ( 0.02%) match ty.kind() { . ty::Array(..) => { . debug!( . "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} => false", . place, ty . ); . false . } . ty::Slice(..) | ty::Ref(..) | ty::RawPtr(..) => { . debug!( . "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} refd => true", . place, ty . ); . true . } 188,217 ( 0.02%) ty::Adt(def, _) if (def.has_dtor(tcx) && !def.is_box()) || def.is_union() => { . debug!( . "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} Drop => true", . place, ty . ); . true . } . _ => false, . } -- line 79 ---------------------------------------- -- line 83 ---------------------------------------- . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . move_data: &MoveData<'tcx>, . lookup_result: LookupResult, . each_child: F, . ) where . F: FnMut(MovePathIndex), . { 5,982 ( 0.00%) match lookup_result { . LookupResult::Parent(..) => { . // access to untracked value - do not touch children . } . LookupResult::Exact(e) => on_all_children_bits(tcx, body, move_data, e, each_child), . } . } . . pub fn on_all_children_bits<'tcx, F>( -- line 99 ---------------------------------------- -- line 100 ---------------------------------------- . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . move_data: &MoveData<'tcx>, . move_path_index: MovePathIndex, . mut each_child: F, . ) where . F: FnMut(MovePathIndex), . { 318,432 ( 0.03%) fn is_terminal_path<'tcx>( . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . move_data: &MoveData<'tcx>, . path: MovePathIndex, . ) -> bool { 79,608 ( 0.01%) place_contents_drop_state_cannot_differ(tcx, body, move_data.move_paths[path].place) 318,432 ( 0.03%) } . 383,834 ( 0.03%) fn on_all_children_bits<'tcx, F>( . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . move_data: &MoveData<'tcx>, . move_path_index: MovePathIndex, . each_child: &mut F, . ) where . F: FnMut(MovePathIndex), . { 8,696 ( 0.00%) each_child(move_path_index); . 279,374 ( 0.02%) if is_terminal_path(tcx, body, move_data, move_path_index) { . return; . } . 27,908 ( 0.00%) let mut next_child_index = move_data.move_paths[move_path_index].first_child; 74,966 ( 0.01%) while let Some(child_index) = next_child_index { 28,320 ( 0.00%) on_all_children_bits(tcx, body, move_data, child_index, each_child); 4,720 ( 0.00%) next_child_index = move_data.move_paths[child_index].next_sibling; . } 310,040 ( 0.03%) } 206,646 ( 0.02%) on_all_children_bits(tcx, body, move_data, move_path_index, &mut each_child); . } . . pub fn on_all_drop_children_bits<'tcx, F>( . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . ctxt: &MoveDataParamEnv<'tcx>, . path: MovePathIndex, . mut each_child: F, . ) where . F: FnMut(MovePathIndex), . { 12,831 ( 0.00%) on_all_children_bits(tcx, body, &ctxt.move_data, path, |child| { 8,596 ( 0.00%) let place = &ctxt.move_data.move_paths[path].place; 2,149 ( 0.00%) let ty = place.ty(body, tcx).ty; . debug!("on_all_drop_children_bits({:?}, {:?} : {:?})", path, place, ty); . 1,583 ( 0.00%) let erased_ty = tcx.erase_regions(ty); 13,247 ( 0.00%) if erased_ty.needs_drop(tcx, ctxt.param_env) { 2,149 ( 0.00%) each_child(child); . } else { . debug!("on_all_drop_children_bits - skipping") . } . }) . } . 8,319 ( 0.00%) pub fn drop_flag_effects_for_function_entry<'tcx, F>( . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . ctxt: &MoveDataParamEnv<'tcx>, . mut callback: F, . ) where . F: FnMut(MovePathIndex, DropFlagState), . { . let move_data = &ctxt.move_data; 744 ( 0.00%) for arg in body.args_iter() { 1,644 ( 0.00%) let place = mir::Place::from(arg); 2,466 ( 0.00%) let lookup_result = move_data.rev_lookup.find(place.as_ref()); . on_lookup_result_bits(tcx, body, move_data, lookup_result, |mpi| { 936 ( 0.00%) callback(mpi, DropFlagState::Present) . }); . } 5,952 ( 0.00%) } . 386,760 ( 0.03%) pub fn drop_flag_effects_for_location<'tcx, F>( . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . ctxt: &MoveDataParamEnv<'tcx>, . loc: Location, . mut callback: F, . ) where . F: FnMut(MovePathIndex, DropFlagState), . { . let move_data = &ctxt.move_data; . debug!("drop_flag_effects_for_location({:?})", loc); . . // first, move out of the RHS 15,373 ( 0.00%) for mi in &move_data.loc_map[loc] { 84,641 ( 0.01%) let path = mi.move_path_index(move_data); . debug!("moving out of path {:?}", move_data.move_paths[path]); . 24,840 ( 0.00%) on_all_children_bits(tcx, body, move_data, path, |mpi| callback(mpi, DropFlagState::Absent)) . } . . debug!("drop_flag_effects: assignment for location({:?})", loc); . 8,681 ( 0.00%) for_location_inits(tcx, body, move_data, loc, |mpi| callback(mpi, DropFlagState::Present)); 302,792 ( 0.02%) } . . pub fn for_location_inits<'tcx, F>( . tcx: TyCtxt<'tcx>, . body: &Body<'tcx>, . move_data: &MoveData<'tcx>, . loc: Location, . mut callback: F, . ) where . F: FnMut(MovePathIndex), . { 15,373 ( 0.00%) for ii in &move_data.init_loc_map[loc] { 43,712 ( 0.00%) let init = move_data.inits[*ii]; 26,482 ( 0.00%) match init.kind { . InitKind::Deep => { . let path = init.path; . . on_all_children_bits(tcx, body, move_data, path, &mut callback) . } . InitKind::Shallow => { . let mpi = init.path; . callback(mpi); -- line 226 ---------------------------------------- -- line 230 ---------------------------------------- . } . } . . /// Calls `handle_inactive_variant` for each descendant move path of `enum_place` that contains a . /// `Downcast` to a variant besides the `active_variant`. . /// . /// NOTE: If there are no move paths corresponding to an inactive variant, . /// `handle_inactive_variant` will not be called for that variant. 5,124 ( 0.00%) pub(crate) fn on_all_inactive_variants<'tcx>( . tcx: TyCtxt<'tcx>, . body: &mir::Body<'tcx>, . move_data: &MoveData<'tcx>, . enum_place: mir::Place<'tcx>, . active_variant: VariantIdx, . mut handle_inactive_variant: impl FnMut(MovePathIndex), . ) { 2,135 ( 0.00%) let enum_mpi = match move_data.rev_lookup.find(enum_place.as_ref()) { . LookupResult::Exact(mpi) => mpi, . LookupResult::Parent(_) => return, . }; . . let enum_path = &move_data.move_paths[enum_mpi]; 2,037 ( 0.00%) for (variant_mpi, variant_path) in enum_path.children(&move_data.move_paths) { . // Because of the way we build the `MoveData` tree, each child should have exactly one more . // projection than `enum_place`. This additional projection must be a downcast since the . // base is an enum. 377 ( 0.00%) let (downcast, base_proj) = variant_path.place.projection.split_last().unwrap(); 1,508 ( 0.00%) assert_eq!(enum_place.projection.len(), base_proj.len()); . 1,131 ( 0.00%) let variant_idx = match *downcast { . mir::ProjectionElem::Downcast(_, idx) => idx, . _ => unreachable!(), . }; . 377 ( 0.00%) if variant_idx != active_variant { . on_all_children_bits(tcx, body, move_data, variant_mpi, |mpi| { 446 ( 0.00%) handle_inactive_variant(mpi) . }); . } . } 3,416 ( 0.00%) } 298,588 ( 0.02%) -------------------------------------------------------------------------------- -- Auto-annotated source: /usr/home/liquid/.cargo/registry/src/github.com-1ecc6299db9ec823/snap-1.0.1/src/decompress.rs -------------------------------------------------------------------------------- Ir -- line 22 ---------------------------------------- . /// compressor. . /// . /// # Errors . /// . /// This function returns an error in the following circumstances: . /// . /// * An invalid Snappy header was seen. . /// * The total space required for decompression exceeds `2^32 - 1`. 36 ( 0.00%) pub fn decompress_len(input: &[u8]) -> Result { 18 ( 0.00%) if input.is_empty() { . return Ok(0); . } 36 ( 0.00%) Ok(Header::read(input)?.decompress_len) 54 ( 0.00%) } . . /// Decoder is a raw decoder for decompressing bytes in the Snappy format. . /// . /// This decoder does not use the Snappy frame format and simply decompresses . /// the given bytes as if it were returned from `Encoder`. . /// . /// Unless you explicitly need the low-level control, you should use . /// [`read::FrameDecoder`](../read/struct.FrameDecoder.html) -- line 43 ---------------------------------------- -- line 47 ---------------------------------------- . // Place holder for potential future fields. . _dummy: (), . } . . impl Decoder { . /// Return a new decoder that can be used for decompressing bytes. . pub fn new() -> Decoder { . Decoder { _dummy: () } 14 ( 0.00%) } . . /// Decompresses all bytes in `input` into `output`. . /// . /// `input` must be a sequence of bytes returned by a conforming Snappy . /// compressor. . /// . /// The size of `output` must be large enough to hold all decompressed . /// bytes from the `input`. The size required can be queried with the -- line 63 ---------------------------------------- -- line 67 ---------------------------------------- . /// . /// # Errors . /// . /// This method returns an error in the following circumstances: . /// . /// * Invalid compressed Snappy data was seen. . /// * The total space required for decompression exceeds `2^32 - 1`. . /// * `output` has length less than `decompress_len(input)`. 144 ( 0.00%) pub fn decompress( . &mut self, . input: &[u8], . output: &mut [u8], . ) -> Result { 18 ( 0.00%) if input.is_empty() { . return Err(Error::Empty); . } . let hdr = Header::read(input)?; 36 ( 0.00%) if hdr.decompress_len > output.len() { . return Err(Error::BufferTooSmall { . given: output.len() as u64, . min: hdr.decompress_len as u64, . }); . } . let dst = &mut output[..hdr.decompress_len]; . let mut dec = . Decompress { src: &input[hdr.len..], s: 0, dst: dst, d: 0 }; . dec.decompress()?; 54 ( 0.00%) Ok(dec.dst.len()) 162 ( 0.00%) } . . /// Decompresses all bytes in `input` into a freshly allocated `Vec`. . /// . /// This is just like the `decompress` method, except it allocates a `Vec` . /// with the right size for you. (This is intended to be a convenience . /// method.) . /// . /// This method returns an error under the same circumstances that -- line 103 ---------------------------------------- -- line 123 ---------------------------------------- . } . . impl<'s, 'd> Decompress<'s, 'd> { . /// Decompresses snappy compressed bytes in `src` to `dst`. . /// . /// This assumes that the header has already been read and that `dst` is . /// big enough to store all decompressed bytes. . fn decompress(&mut self) -> Result<()> { 85,296 ( 0.01%) while self.s < self.src.len() { 42,630 ( 0.00%) let byte = self.src[self.s]; 42,630 ( 0.00%) self.s += 1; 85,260 ( 0.01%) if byte & 0b000000_11 == 0 { 46,776 ( 0.00%) let len = (byte >> 2) as usize + 1; . self.read_literal(len)?; . } else { . self.read_copy(byte)?; . } . } 36 ( 0.00%) if self.d != self.dst.len() { . return Err(Error::HeaderMismatch { . expected_len: self.dst.len() as u64, . got_len: self.d as u64, . }); . } . Ok(()) . } . -- line 149 ---------------------------------------- -- line 162 ---------------------------------------- . debug_assert!(len <= 64); . let mut len = len as u64; . // As an optimization for the common case, if the literal length is . // <=16 and we have enough room in both `src` and `dst`, copy the . // literal using unaligned loads and stores. . // . // We pick 16 bytes with the hope that it optimizes down to a 128 bit . // load/store. 61,588 ( 0.01%) if len <= 16 45,612 ( 0.00%) && self.s + 16 <= self.src.len() 60,800 ( 0.00%) && self.d + 16 <= self.dst.len() . { . unsafe { . // SAFETY: We know both src and dst have at least 16 bytes of . // wiggle room after s/d, even if `len` is <16, so the copy is . // safe. . let srcp = self.src.as_ptr().add(self.s); . let dstp = self.dst.as_mut_ptr().add(self.d); . // Hopefully uses SIMD registers for 128 bit load/store. . ptr::copy_nonoverlapping(srcp, dstp, 16); . } 15,200 ( 0.00%) self.d += len as usize; 45,600 ( 0.00%) self.s += len as usize; . return Ok(()); . } . // When the length is bigger than 60, it indicates that we need to read . // an additional 1-4 bytes to get the real length of the literal. 776 ( 0.00%) if len >= 61 { . // If there aren't at least 4 bytes left to read then we know this . // is corrupt because the literal must have length >=61. 410 ( 0.00%) if self.s as u64 + 4 > self.src.len() as u64 { . return Err(Error::Literal { . len: 4, . src_len: (self.src.len() - self.s) as u64, . dst_len: (self.dst.len() - self.d) as u64, . }); . } . // Since we know there are 4 bytes left to read, read a 32 bit LE . // integer and mask away the bits we don't need. . let byte_count = len as usize - 60; . len = bytes::read_u32_le(&self.src[self.s..]) as u64; 492 ( 0.00%) len = (len & (WORD_MASK[byte_count] as u64)) + 1; 82 ( 0.00%) self.s += byte_count; . } . // If there's not enough buffer left to load or store this literal, . // then the input is corrupt. . // if self.s + len > self.src.len() || self.d + len > self.dst.len() { 2,352 ( 0.00%) if ((self.src.len() - self.s) as u64) < len 1,176 ( 0.00%) || ((self.dst.len() - self.d) as u64) < len . { . return Err(Error::Literal { . len: len, . src_len: (self.src.len() - self.s) as u64, . dst_len: (self.dst.len() - self.d) as u64, . }); . } . unsafe { . // SAFETY: We've already checked the bounds, so we know this copy . // is correct. . let srcp = self.src.as_ptr().add(self.s); . let dstp = self.dst.as_mut_ptr().add(self.d); . ptr::copy_nonoverlapping(srcp, dstp, len as usize); . } 784 ( 0.00%) self.s += len as usize; 784 ( 0.00%) self.d += len as usize; . Ok(()) . } . . /// Reads a copy from `src` and writes the decompressed bytes to `dst`. `s` . /// should point to the byte immediately proceding the copy tag byte. . #[inline(always)] . fn read_copy(&mut self, tag_byte: u8) -> Result<()> { . // Find the copy offset and len, then advance the input past the copy. . // The rest of this function deals with reading/writing to output only. . let entry = TAG_LOOKUP_TABLE.entry(tag_byte); . let offset = entry.offset(self.src, self.s)?; . let len = entry.len(); 54,076 ( 0.00%) self.s += entry.num_tag_bytes(); . . // What we really care about here is whether `d == 0` or `d < offset`. . // To save an extra branch, use `d < offset - 1` instead. If `d` is . // `0`, then `offset.wrapping_sub(1)` will be usize::MAX which is also . // the max value of `d`. 54,076 ( 0.00%) if self.d <= offset.wrapping_sub(1) { . return Err(Error::Offset { . offset: offset as u64, . dst_pos: self.d as u64, . }); . } . // When all is said and done, dst is advanced to end. 81,114 ( 0.01%) let end = self.d + len; . // When the copy is small and the offset is at least 8 bytes away from . // `d`, then we can decompress the copy with two 64 bit unaligned . // loads/stores. 204,772 ( 0.02%) if offset >= 8 && len <= 16 && self.d + 16 <= self.dst.len() { . unsafe { . // SAFETY: We know dstp points to at least 16 bytes of memory . // from the condition above, and we also know that dstp is . // preceded by at least `offset` bytes from the `d <= offset` . // check above. . // . // We also know that dstp and dstp-8 do not overlap from the . // check above, justifying the use of copy_nonoverlapping. -- line 264 ---------------------------------------- -- line 273 ---------------------------------------- . // If we have some wiggle room, try to decompress the copy 16 bytes . // at a time with 128 bit unaligned loads/stores. Remember, we can't . // just do a memcpy because decompressing copies may require copying . // overlapping memory. . // . // We need the extra wiggle room to make effective use of 128 bit . // loads/stores. Even if the store ends up copying more data than we . // need, we're careful to advance `d` by the correct amount at the end. 38,570 ( 0.00%) } else if end + 24 <= self.dst.len() { . unsafe { . // SAFETY: We know that dstp is preceded by at least `offset` . // bytes from the `d <= offset` check above. . // . // We don't know whether dstp overlaps with srcp, so we start . // by copying from srcp to dstp until they no longer overlap. . // The worst case is when dstp-src = 3 and copy length = 1. The . // first loop will issue these copy operations before stopping: -- line 289 ---------------------------------------- -- line 295 ---------------------------------------- . // But the copy had length 1, so it was only supposed to write . // to [0, 0]. But the last copy wrote to [9, 24], which is 24 . // extra bytes in dst *beyond* the end of the copy, which is . // guaranteed by the conditional above. . let mut dstp = self.dst.as_mut_ptr().add(self.d); . let mut srcp = dstp.sub(offset); . loop { . debug_assert!(dstp >= srcp); 60,906 ( 0.00%) let diff = (dstp as usize) - (srcp as usize); 40,604 ( 0.00%) if diff >= 16 { . break; . } . // srcp and dstp can overlap, so use ptr::copy. . debug_assert!(self.d + 16 <= self.dst.len()); . ptr::copy(srcp, dstp, 16); 25,184 ( 0.00%) self.d += diff as usize; . dstp = dstp.add(diff); . } 93,250 ( 0.01%) while self.d < end { . ptr::copy_nonoverlapping(srcp, dstp, 16); . srcp = srcp.add(16); . dstp = dstp.add(16); 76,020 ( 0.01%) self.d += 16; . } . // At this point, `d` is likely wrong. We correct it before . // returning. It's correct value is `end`. . } . } else { 8 ( 0.00%) if end > self.dst.len() { . return Err(Error::CopyWrite { . len: len as u64, . dst_len: (self.dst.len() - self.d) as u64, . }); . } . // Finally, the slow byte-by-byte case, which should only be used . // for the last few bytes of decompression. 372 ( 0.00%) while self.d != end { 1,636 ( 0.00%) self.dst[self.d] = self.dst[self.d - offset]; 180 ( 0.00%) self.d += 1; . } . } . self.d = end; . Ok(()) . } . } . . /// Header represents the single varint that starts every Snappy compressed -- line 341 ---------------------------------------- -- line 350 ---------------------------------------- . . impl Header { . /// Reads the varint header from the given input. . /// . /// If there was a problem reading the header then an error is returned. . /// If a header is returned then it is guaranteed to be valid. . #[inline(always)] . fn read(input: &[u8]) -> Result