bors cd7cbe818e Auto merge of #142071 - lcnr:revealing-use, r=compiler-errors ... `apply_member_constraints`: fix placeholder check Checking whether the member region is *an existential region from a higher universe* is just wrong and I am pretty sure we've added that check by accident as the naming was just horribly confusing before rust-lang/rust#140466. I've encountered this issue separately while working on rust-lang/rust#139587, but feel like it's probably easier to separately FCP this change. This allows the following code to compile ```rust trait Proj<'a> { type Assoc; } impl<'a, 'b, F: FnOnce() -> &'b ()> Proj<'a> for F { type Assoc = (); } fn is_proj<F: for<'a> Proj<'a>>(f: F) {} fn define<'a>() -> impl Sized + use<'a> { // This adds a use of `opaque::<'a>` with hidden type `&'unconstrained_b ()`. // 'unconstrained_b is an inference variable from a higher universe as it gets // created inside of the binder of `F: for<'a> Proj<'a>`. This previously // caused us to not apply member constraints. We now do, constraining // it to `'a`. is_proj(define::<'a>); &() } fn main() {} ``` This should not be breaking change, even in theory. Applying member constraints is incomplete in rare circumstances which means that applying them in more cases can cause spurious errors, cc rust-lang/rust#140569/rust-lang/rust#142073. However, as we always skipped these member regions in `apply_member_constraints` the skipped region is guaranteed to cause an error in `check_member_constraints` later on.		2025-08-15 18:52:12 +00:00
..
rustc	rename stable_mir to rustc_public, and rustc_smir to rustc_public_bridge	2025-07-14 09:25:54 +00:00
rustc_abi	Reuse sign_extend helper	2025-07-29 14:17:48 +00:00
rustc_arena	Introduce Arena::try_alloc_from_iter.	2025-04-19 01:13:18 +00:00
rustc_ast	Extract ast TraitImplHeader	2025-08-11 17:05:36 -05:00
rustc_ast_ir	Tidy up Cargo.toml files.	2025-07-31 19:58:04 +10:00
rustc_ast_lowering	Pass the target type down to parse_attribute_list	2025-08-14 18:11:56 +02:00
rustc_ast_passes	Rollup merge of #143075 - workingjubilee:interrupts-may-return-nevermore, r=davidtwco	2025-08-15 16:16:31 +10:00
rustc_ast_pretty	Extract ast TraitImplHeader	2025-08-11 17:05:36 -05:00
rustc_attr_parsing	Specify the list of allowed targets per attribute	2025-08-14 18:18:22 +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 #142071 - lcnr:revealing-use, r=compiler-errors	2025-08-15 18:52:12 +00:00
rustc_builtin_macros	Rollup merge of #142640 - Sa4dUs:ad-intrinsic, r=ZuseZ4	2025-08-15 16:16:30 +10:00
rustc_codegen_cranelift	Port the #[linkage] attribute to the new attribute system	2025-08-13 21:01:37 +02:00
rustc_codegen_gcc	Complete functionality and general cleanup	2025-08-14 16:30:15 +00:00
rustc_codegen_llvm	Rollup merge of #145275 - StackOverflowExcept1on:fix-wasm32v1-none, r=alexcrichton	2025-08-15 16:16:38 +10:00
rustc_codegen_ssa	Rollup merge of #145004 - bjorn3:remove_unused_fields, r=WaffleLapkin	2025-08-15 16:16:33 +10:00
rustc_const_eval	Rollup merge of #145266 - camsteffen:reduce-queries, r=petrochenkov	2025-08-14 11:39:38 +02:00
rustc_data_structures	Allow pretty printing paths with -Zself-profile-events=args	2025-07-25 22:24:21 +02:00
rustc_driver	Remove recursion_limit increases.	2025-04-02 16:25:27 +11:00
rustc_driver_impl	Tidy up Cargo.toml files.	2025-07-31 19:58:04 +10:00
rustc_error_codes	Rollup merge of #144944 - He1pa:E0793, r=compiler-errors	2025-08-15 16:16:32 +10:00
rustc_error_messages	Remove unused feature gates	2025-06-28 23:36:46 +00:00
rustc_errors	Rollup merge of #137872 - estebank:extra-vert, r=compiler-errors	2025-08-14 21:48:41 +02:00
rustc_expand	Rollup merge of #145153 - joshtriplett:macro-kinds-plural, r=petrochenkov	2025-08-13 18:43:01 +02:00
rustc_feature	Stabilize sse4a and tbm target features	2025-08-14 02:07:40 +05:30
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	Remove the old target checking logic	2025-08-14 18:18:42 +02:00
rustc_hir_analysis	Rollup merge of #145235 - compiler-errors:comment, r=BoxyUwU	2025-08-15 16:16:38 +10:00
rustc_hir_pretty	Propagate TraitImplHeader to hir	2025-08-11 17:05:42 -05:00
rustc_hir_typeck	Rollup merge of #145235 - compiler-errors:comment, r=BoxyUwU	2025-08-15 16:16:38 +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	Tidy up Cargo.toml files.	2025-07-31 19:58:04 +10:00
rustc_index_macros	Tidy up Cargo.toml files.	2025-07-31 19:58:04 +10:00
rustc_infer	remove from_forall	2025-08-11 09:18:46 +02:00
rustc_interface	Fix parallel rustc not being reproducible due to unstable sorting of items.	2025-08-13 08:59:32 +08:00
rustc_lexer	test(lexer): Add frontmatter unit test	2025-07-10 10:25:29 -05:00
rustc_lint	Fix wrong spans with external macros in the dropping_copy_types lint	2025-08-15 11:59:23 +02:00
rustc_lint_defs	Rollup merge of #144865 - WaffleLapkin:track-tail, r=lqd	2025-08-15 16:16:31 +10:00
rustc_llvm	Auto merge of #145093 - nikic:dead-on-return, r=nnethercote	2025-08-13 04:18:43 +00:00
rustc_log	Add documentation for init_logger_with_additional_layer	2025-06-12 12:11:15 +02:00
rustc_macros	cleanup: Remove useless [T].iter().last()	2025-08-14 16:28:56 +00:00
rustc_metadata	Switch to a bitflags MacroKinds to support macros with more than one kind	2025-08-12 09:24:45 -07:00
rustc_middle	Auto merge of #145423 - Zalathar:rollup-9jtefpl, r=Zalathar	2025-08-15 09:13:10 +00:00
rustc_mir_build	Auto merge of #145423 - Zalathar:rollup-9jtefpl, r=Zalathar	2025-08-15 09:13:10 +00:00
rustc_mir_dataflow	Escape diff strings in graphviz	2025-08-08 00:20:55 -05:00
rustc_mir_transform	Rollup merge of #145392 - Zalathar:create-mappings, r=petrochenkov	2025-08-15 16:16:43 +10:00
rustc_monomorphize	Rollup merge of #144865 - WaffleLapkin:track-tail, r=lqd	2025-08-15 16:16:31 +10:00
rustc_next_trait_solver	update comment	2025-08-14 16:07:24 +02:00
rustc_parse	Rollup merge of #145378 - xizheyin:144968, r=davidtwco	2025-08-15 16:16:41 +10:00
rustc_parse_format	update to literal-escaper-0.0.5	2025-07-08 10:16:44 +00:00
rustc_passes	Remove the old target checking logic	2025-08-14 18:18:42 +02:00
rustc_pattern_analysis	avoid unnecessary type sanity checks	2025-08-14 09:44:22 +02:00
rustc_privacy	Propagate TraitImplHeader to hir	2025-08-11 17:05:42 -05:00
rustc_proc_macro	Tidy up Cargo.toml files.	2025-07-31 19:58:04 +10:00
rustc_public	fix missing parenthesis in pretty discriminant	2025-08-09 01:35:50 +08:00
rustc_public_bridge	Remove useless lifetime parameter.	2025-07-23 23:54:37 +00:00
rustc_query_impl	Remove unused allow attrs	2025-07-07 12:58:16 +00:00
rustc_query_system	remove rustc_attr_data_structures	2025-07-31 14:19:27 +02:00
rustc_resolve	Rollup merge of #145369 - estebank:issue-145367, r=compiler-errors	2025-08-15 16:16:40 +10:00
rustc_sanitizers	rename TraitRef::from_method to from_assoc	2025-08-09 14:22:01 +08:00
rustc_serialize	use div_ceil instead of manual logic	2025-07-05 10:55:42 +02:00
rustc_session	Rollup merge of #145408 - Kobzol:deduplicate-search-paths, r=petrochenkov	2025-08-15 16:03:58 +02:00
rustc_span	Basic implementation of autodiff intrinsic	2025-08-14 16:29:58 +00:00
rustc_symbol_mangling	Rollup merge of #144949 - nnethercote:more-Printer-cleanups, r=davidtwco	2025-08-13 18:42:59 +02:00
rustc_target	Rollup merge of #145004 - bjorn3:remove_unused_fields, r=WaffleLapkin	2025-08-15 16:16:33 +10:00
rustc_thread_pool	Drop rust-version from rustc_thread_pool	2025-08-04 15:03:49 -07:00
rustc_trait_selection	Rollup merge of #145235 - compiler-errors:comment, r=BoxyUwU	2025-08-15 16:16:38 +10:00
rustc_traits	Auto merge of #144446 - nnethercote:opt-region-constraints, r=lcnr	2025-08-01 04:06:21 +00:00
rustc_transmute	Tidy up Cargo.toml files.	2025-07-31 19:58:04 +10:00
rustc_ty_utils	use ty::Value instead of manual pairs of types and valtrees	2025-08-14 09:44:22 +02:00
rustc_type_ir	ignore head usages of ignored candidates	2025-08-14 14:38:00 +02:00
rustc_type_ir_macros	Split TypeFolder and FallibleTypeFolder	2025-04-15 18:30:35 +00:00