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rust/compiler
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Nicholas Nethercote 478f8287c0 Introduce ByteSymbol. 
It's like `Symbol` but for byte strings. The interner is now used for
both `Symbol` and `ByteSymbol`. E.g. if you intern `"dog"` and `b"dog"`
you'll get a `Symbol` and a `ByteSymbol` with the same index and the
characters will only be stored once.

The motivation for this is to eliminate the `Arc`s in `ast::LitKind`, to
make `ast::LitKind` impl `Copy`, and to avoid the need to arena-allocate
`ast::LitKind` in HIR. The latter change reduces peak memory by a
non-trivial amount on literal-heavy benchmarks such as `deep-vector` and
`tuple-stress`.

`Encoder`, `Decoder`, `SpanEncoder`, and `SpanDecoder` all get some
changes so that they can handle normal strings and byte strings.

This change does slow down compilation of programs that use
`include_bytes!` on large files, because the contents of those files are
now interned (hashed). This makes `include_bytes!` more similar to
`include_str!`, though `include_bytes!` contents still aren't escaped,
and hashing is still much cheaper than escaping.
2025-06-30 20:42:27 +10:00
..
rustc Revert "Use workspace lints for crates in compiler/ #138084" 2025-03-10 18:12:47 +08:00
rustc_abi move discr=varid check to layout_sanity_check 2025-06-28 14:47:27 +02:00
rustc_arena Introduce Arena::try_alloc_from_iter. 2025-04-19 01:13:18 +00:00
rustc_ast Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_ast_ir Use -Wunused_crate_dependencies for compiler crates. 2025-03-20 08:59:43 +11:00
rustc_ast_lowering Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_ast_passes Rollup merge of #139858 - oli-obk:new-const-traits-syntax, r=fee1-dead 2025-06-27 22:13:00 +02:00
rustc_ast_pretty Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_attr_data_structures Port #[link_name] to the new attribute parsing infrastructure 2025-06-28 13:53:37 +02:00
rustc_attr_parsing Port #[link_name] to the new attribute parsing infrastructure 2025-06-28 13:53:37 +02:00
rustc_baked_icu_data Add unreachable_pub to RUSTC_LINT_FLAGS for compiler/ crates. 2025-03-11 13:14:21 +11:00
rustc_borrowck Auto merge of #143074 - compiler-errors:rollup-cv64hdh, r=compiler-errors 2025-06-27 00:44:20 +00:00
rustc_builtin_macros Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_codegen_cranelift Rollup merge of #142078 - sayantn:more-intrinsics, r=workingjubilee 2025-06-29 12:29:53 +02:00
rustc_codegen_gcc Rollup merge of #142078 - sayantn:more-intrinsics, r=workingjubilee 2025-06-29 12:29:53 +02:00
rustc_codegen_llvm Rollup merge of #142078 - sayantn:more-intrinsics, r=workingjubilee 2025-06-29 12:29:53 +02:00
rustc_codegen_ssa Rollup merge of #143138 - JonathanBrouwer:link_name_parser, r=jdonszelmann 2025-06-29 06:59:31 +02:00
rustc_const_eval Rollup merge of #142708 - Darksonn:location-len-without-nul, r=Mark-Simulacrum 2025-06-28 22:05:28 +02:00
rustc_data_structures Rollup merge of #142868 - klensy:dc, r=oli-obk 2025-06-22 17:35:36 +02:00
rustc_driver Remove recursion_limit increases. 2025-04-02 16:25:27 +11:00
rustc_driver_impl rustc_session: Add a structure for keeping both explicit and default sysroots 2025-06-24 16:00:04 +03:00
rustc_error_codes compiler: Trim the misleading C of C-cmse from errors 2025-06-25 00:52:10 -07:00
rustc_error_messages Remove unused feature gates 2025-06-28 23:36:46 +00:00
rustc_errors Rollup merge of #142724 - xizheyin:avoid_overwrite_args, r=oli-obk 2025-06-25 22:14:55 +02:00
rustc_expand Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_feature fix typos on some doc comments 2025-06-28 13:13:59 +02:00
rustc_fluent_macro Remove all unused feature gates from the compiler 2025-06-08 14:50:42 +00:00
rustc_fs_util Retry if creating temp fails with access denied 2025-04-25 11:28:36 +00:00
rustc_graphviz Remove #![warn(unreachable_pub)] from all compiler/ crates. 2025-03-11 13:14:21 +11:00
rustc_hashes Revert "Use workspace lints for crates in compiler/ #138084" 2025-03-10 18:12:47 +08:00
rustc_hir Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_hir_analysis Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_hir_pretty Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_hir_typeck Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_incremental Auto merge of #139758 - Zoxc:thread-local-graph, r=oli-obk 2025-05-07 12:39:54 +00:00
rustc_index index: add method for checking range on DenseBitSet 2025-06-04 00:47:12 +02:00
rustc_index_macros In rustc_mir_tranform, iterate over index newtypes instead of ints 2025-04-12 11:53:07 +00:00
rustc_infer Auto merge of #142223 - compiler-errors:perf-wf, r=lcnr 2025-06-27 03:57:45 +00:00
rustc_interface Rollup merge of #142934 - nnethercote:tweak-macro-stats, r=petrochenkov 2025-06-24 19:45:33 -07:00
rustc_lexer rustc_lexer: typo fix + small cleanups 2025-06-06 13:08:16 +00:00
rustc_lint Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_lint_defs make tidy-alphabetical use a natural sort 2025-06-25 22:52:38 +02:00
rustc_llvm rustc_llvm: add Windows system libs only when cross-compiling from Windows 2025-05-31 15:47:14 +02:00
rustc_log Add documentation for init_logger_with_additional_layer 2025-06-12 12:11:15 +02:00
rustc_macros Use tidy to sort sym::* items 2025-06-28 09:25:55 +00:00
rustc_metadata Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_middle Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_mir_build Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_mir_dataflow update cfg(bootstrap) 2025-05-12 15:33:37 +02:00
rustc_mir_transform Auto merge of #142625 - cjgillot:inline-nocycle, r=oli-obk 2025-06-28 19:11:42 +00:00
rustc_monomorphize Auto merge of #141759 - 1c3t3a:discriminants-query, r=saethlin 2025-06-28 10:25:00 +00:00
rustc_next_trait_solver Rollup merge of #142806 - compiler-errors:norm-ct-has-ty, r=lcnr,BoxyUwU 2025-06-27 22:13:03 +02:00
rustc_parse Rollup merge of #143171 - fmease:fix-span-of-maybe-const-mod, r=compiler-errors 2025-06-29 06:59:33 +02:00
rustc_parse_format update to literal-escaper 0.0.4 for better API without unreachable and faster string parsing 2025-06-23 06:36:22 +00:00
rustc_passes Port #[link_name] to the new attribute parsing infrastructure 2025-06-28 13:53:37 +02:00
rustc_pattern_analysis Add #[loop_match] for improved DFA codegen 2025-06-23 20:43:04 +02:00
rustc_privacy Reorder fields in hir::ItemKind variants. 2025-05-30 02:23:20 +10:00
rustc_proc_macro update to literal-escaper 0.0.4 for better API without unreachable and faster string parsing 2025-06-23 06:36:22 +00:00
rustc_query_impl Auto merge of #140145 - Zoxc:job-server-proxy, r=SparrowLii 2025-05-01 04:11:52 +00:00
rustc_query_system Rollup merge of #142384 - celinval:chores-rayon-mv, r=oli-obk 2025-06-20 23:25:54 -04:00
rustc_resolve explain ImportData::imported_module 2025-06-29 00:23:35 +08:00
rustc_sanitizers Replace some Option<Span> with Span and use DUMMY_SP instead of None 2025-06-05 14:14:59 +00:00
rustc_serialize Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_session Rollup merge of #142809 - KMJ-007:ad-type-analysis-flag, r=ZuseZ4 2025-06-25 22:14:55 +02:00
rustc_smir Auto merge of #141759 - 1c3t3a:discriminants-query, r=saethlin 2025-06-28 10:25:00 +00:00
rustc_span Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_symbol_mangling Change __rust_no_alloc_shim_is_unstable to be a function 2025-06-16 10:54:07 -07:00
rustc_target Rollup merge of #141311 - folkertdev:tidy-natural-sort, r=jieyouxu 2025-06-26 15:47:17 +02:00
rustc_thread_pool Apply suggestions from code review 2025-06-16 12:27:47 -07:00
rustc_trait_selection Rollup merge of #139858 - oli-obk:new-const-traits-syntax, r=fee1-dead 2025-06-27 22:13:00 +02:00
rustc_traits Remove some glob imports from the type system 2025-06-25 15:35:16 +00:00
rustc_transmute tag_for_variant: properly pass TypingEnv 2025-06-27 17:04:33 +02:00
rustc_ty_utils Introduce ByteSymbol. 2025-06-30 20:42:27 +10:00
rustc_type_ir Auto merge of #142317 - compiler-errors:perf-fold, r=lcnr 2025-06-28 13:31:12 +00:00
rustc_type_ir_macros Split TypeFolder and FallibleTypeFolder 2025-04-15 18:30:35 +00:00
stable_mir Change rustc_driver dependency on stable_mir crate 2025-04-30 15:39:52 -07:00