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rust/compiler
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Stuart Cook f87f9a456c
Rollup merge of #147734 - fmease:tighten-relaxed, r=lcnr 
Further tighten up relaxed bounds

Follow-up to rust-lang/rust#142693, rust-lang/rust#135331 and rust-lang/rust#135841.
Fixes rust-lang/rust#143122.

* Reject relaxed bounds `?Trait` in the bounds of trait aliases.
  Just like `trait Trait {}` doesn't mean `trait Trait: Sized {}` and we therefore reject `trait Trait: ?Sized {}`, `trait Trait =;` (sic!) doesn't mean `trait Trait = Sized;` (never did!) and as a logical consequence `trait Trait = ?Sized;` is meaningless and should be forbidden.
* Don't permit `?Sized` in more places (e.g., supertrait bounds, trait object types) if feature `more_maybe_bounds` is enabled.
  That internal feature is only meant to allow the user to define & use *new* default traits (that have fewer rules to follow for now to ease experimentation).
* Unconditionally check that the `Trait` in `?Trait` is a default trait.
  Previously, we would only perform this check in selected places which was very brittle and led to bugs slipping through.
* Slightly improve diagnostics.
2025-10-20 22:30:53 +11:00
..
rustc Make llvm_enzyme a regular cargo feature 2025-09-15 15:31:56 +00:00
rustc_abi Rollup merge of #147134 - workingjubilee:remove-explicit-abialign-deref, r=Zalathar 2025-09-29 15:44:55 +10:00
rustc_arena some cleanups in compiler 2025-10-12 08:08:30 +00:00
rustc_ast Auto merge of #146221 - camsteffen:ast-boxes, r=cjgillot 2025-10-16 02:31:44 +00:00
rustc_ast_ir turn pointer width into an integer in target.json 2025-08-27 23:44:49 +02:00
rustc_ast_lowering Rollup merge of #147734 - fmease:tighten-relaxed, r=lcnr 2025-10-20 22:30:53 +11:00
rustc_ast_passes Extract common logic for iterating over features 2025-10-02 21:43:14 +00:00
rustc_ast_pretty Revert introduction of [workspace.dependencies]. 2025-09-02 19:12:54 +10:00
rustc_attr_parsing Rollup merge of #147532 - JonathanBrouwer:cfg_attr2, r=jdonszelmann 2025-10-18 15:09:03 +02:00
rustc_baked_icu_data Use default locale fallback data 2025-08-28 09:48:54 +00:00
rustc_borrowck Auto merge of #144607 - camsteffen:impl-trait-header-option, r=lcnr 2025-10-18 00:08:18 +00:00
rustc_builtin_macros Rollup merge of #144438 - dawidl022:contracts/guarded-lowering, r=oli-obk 2025-10-16 19:35:22 +02:00
rustc_codegen_cranelift Rollup merge of #145724 - folkertdev:track-caller-drop-no-mangle, r=fee1-dead 2025-10-18 08:08:36 +02:00
rustc_codegen_gcc Rollup merge of #147576 - Mark-Simulacrum:fix-offset-zst, r=nnethercote,RalfJung 2025-10-16 19:35:24 +02:00
rustc_codegen_llvm Rollup merge of #147576 - Mark-Simulacrum:fix-offset-zst, r=nnethercote,RalfJung 2025-10-16 19:35:24 +02:00
rustc_codegen_ssa comments for deduce_param_attrs 2025-10-19 10:12:43 +02:00
rustc_const_eval Rollup merge of #147764 - beepster4096:oopsies_sorry, r=saethlin 2025-10-18 08:08:38 +02:00
rustc_data_structures Rollup merge of #147716 - zhetaicheleba:master, r=jdonszelmann 2025-10-15 23:41:05 +02:00
rustc_driver compiler: Add Windows resources to rustc-main and rustc_driver 2025-09-05 14:06:31 -04:00
rustc_driver_impl fixes for numerous clippy warnings 2025-09-19 20:56:07 +00:00
rustc_error_codes Rollup merge of #146585 - hkBst:indexing-1, r=jdonszelmann 2025-10-02 10:27:49 +02:00
rustc_error_messages Revert introduction of [workspace.dependencies]. 2025-09-02 19:12:54 +10:00
rustc_errors Rollup merge of #147354 - chenyukang:yukang-fix-147070-wrong-highlight-span, r=estebank 2025-10-07 07:04:17 +02:00
rustc_expand Rollup merge of #147438 - reddevilmidzy:rename-non-inline-module-in-msg, r=fee1-dead 2025-10-18 23:54:44 +02:00
rustc_feature Extract common logic for iterating over features 2025-10-02 21:43:14 +00:00
rustc_fluent_macro some cleanups in compiler 2025-10-12 08:08:30 +00:00
rustc_fs_util Revert introduction of [workspace.dependencies]. 2025-09-02 19:12:54 +10:00
rustc_graphviz some cleanups in compiler 2025-10-12 08:08:30 +00:00
rustc_hashes some cleanups in compiler 2025-10-12 08:08:30 +00:00
rustc_hir Rollup merge of #147676 - jdonszelmann:span-is-doc-comment, r=GuillaumeGomez 2025-10-15 23:41:03 +02:00
rustc_hir_analysis Rollup merge of #147734 - fmease:tighten-relaxed, r=lcnr 2025-10-20 22:30:53 +11:00
rustc_hir_id rustc_hir_id: Add a comment explaining why the crate exists 2025-08-20 15:04:00 -07:00
rustc_hir_pretty Rollup merge of #146102 - fmease:rm-dead-eff-code-iii, r=fee1-dead 2025-09-02 17:08:58 +02:00
rustc_hir_typeck Remove Option from impl_trait_header 2025-10-17 08:36:34 -05:00
rustc_incremental Do not GC the current active incremental session directory 2025-10-20 02:39:55 +00:00
rustc_index Rollup merge of #147751 - nnethercote:bit_set-Word, r=Zalathar 2025-10-16 19:35:27 +02:00
rustc_index_macros Revert introduction of [workspace.dependencies]. 2025-09-02 19:12:54 +10:00
rustc_infer rename select_where_possible and select_all_or_error 2025-10-07 23:02:23 +01:00
rustc_interface Diagnose liveness on MIR. 2025-10-11 20:50:21 +00:00
rustc_lexer Fix a crash/mislex when more than one frontmatter closing possibility is considered 2025-09-22 15:10:41 -04:00
rustc_lint Rollup merge of #147382 - joshtriplett:unused-must-use-ignore-result-unit-uninhabited, r=fmease 2025-10-20 16:12:54 +11:00
rustc_lint_defs remove useless #![deny]s 2025-10-19 19:48:21 +02:00
rustc_llvm Rollup merge of #147608 - Zalathar:debuginfo, r=nnethercote 2025-10-13 11:25:23 +02:00
rustc_log Restrict sysroot crate imports to those defined in this repo. 2025-10-15 13:17:25 +01:00
rustc_macros use declarative macro for #[derive(TryFromU32)] 2025-10-06 14:54:38 +00:00
rustc_metadata Auto merge of #147695 - cjgillot:deduce-param-freeze, r=tmiasko 2025-10-18 12:37:45 +00:00
rustc_middle Rollup merge of #147734 - fmease:tighten-relaxed, r=lcnr 2025-10-20 22:30:53 +11:00
rustc_mir_build Fix ICE in pattern matching with generic const array length errors 2025-10-16 19:15:32 +08:00
rustc_mir_dataflow make move unwrap_binder! a move subpath 2025-10-11 22:51:40 -07:00
rustc_mir_transform Rollup merge of #147873 - RalfJung:deduce_param_attrs, r=tmiasko 2025-10-19 14:04:55 +02:00
rustc_monomorphize Remove Option from impl_trait_header 2025-10-17 08:36:34 -05:00
rustc_next_trait_solver trait_sel: prefer only nested alias bounds 2025-10-15 09:35:05 +01:00
rustc_parse Parse const unsafe trait properly 2025-10-18 23:39:30 +00:00
rustc_parse_format Revert introduction of [workspace.dependencies]. 2025-09-02 19:12:54 +10:00
rustc_passes Rollup merge of #138679 - Shunpoco:issue-125323, r=oli-obk 2025-10-18 23:54:43 +02:00
rustc_pattern_analysis Rename various "concrete opaque type" terminology to say "hidden type" 2025-09-27 22:58:02 +01:00
rustc_privacy Split impl_(opt_)trait_ref 2025-10-17 08:36:34 -05:00
rustc_proc_macro Revert introduction of [workspace.dependencies]. 2025-09-02 19:12:54 +10:00
rustc_public Remove StatementKind::Deinit. 2025-10-10 12:57:24 +00:00
rustc_public_bridge Split impl_(opt_)trait_ref 2025-10-17 08:36:34 -05:00
rustc_query_impl fixup limit handling code 2025-09-08 15:07:12 -07:00
rustc_query_system Auto merge of #147508 - nnethercote:TaskDeps-improvements, r=saethlin 2025-10-17 04:47:43 +00:00
rustc_resolve use module_child index as disambiguator for external items 2025-10-17 18:04:28 +02:00
rustc_sanitizers Split impl_(opt_)trait_ref 2025-10-17 08:36:34 -05:00
rustc_serialize Revert introduction of [workspace.dependencies]. 2025-09-02 19:12:54 +10:00
rustc_session Fix autodiff incorrectly applying fat-lto to proc-macro crates 2025-10-17 16:52:55 +03:00
rustc_span Allow vector-scalar (vs) registers in ppc inline assembly 2025-10-14 09:52:56 -05:00
rustc_symbol_mangling Split impl_(opt_)trait_ref 2025-10-17 08:36:34 -05:00
rustc_target Rollup merge of #147454 - ferrocene:hoverbear/panic-abort-uwtables-qnx, r=wesleywiser 2025-10-18 08:08:37 +02:00
rustc_thread_pool some cleanups in compiler 2025-10-12 08:08:30 +00:00
rustc_trait_selection Remove Option from impl_trait_header 2025-10-17 08:36:34 -05:00
rustc_traits Auto merge of #146096 - adwinwhite:handle_normalization_overflow_in_mono1, r=saethlin 2025-10-13 00:20:10 +00:00
rustc_transmute prefer to use repeat_n over repeat and take 2025-10-09 01:24:55 +08:00
rustc_ty_utils Auto merge of #147695 - cjgillot:deduce-param-freeze, r=tmiasko 2025-10-18 12:37:45 +00:00
rustc_type_ir trait_sel: prefer only nested alias bounds 2025-10-15 09:35:05 +01:00
rustc_type_ir_macros some cleanups in compiler 2025-10-12 08:08:30 +00:00
rustc_windows_rc [win] Use find-msvc-tools instead of cc to find the linker and rc on Windows 2025-09-19 12:00:30 -07:00