rust/compiler
Matthias Krüger c14d912cd2
Rollup merge of #110673 - compiler-errors:alias-bounds-2, r=lcnr
Make alias bounds sound in the new solver (take 2)

Make alias bounds sound in the new solver (in a way that does not require coinduction) by only considering them for projection types whose corresponding trait refs come from a param-env candidate.

That is, given `<T as Trait>::Assoc: Bound`, we only *really* need to consider the alias bound if `T: Trait` is satisfied via a param-env candidate. If it's instead satisfied, e.g., via an user provided impl candidate or a , then that impl should have a concrete type to which we could otherwise normalize `<T as Trait>::Assoc`, and that concrete type is then responsible to prove the `Bound` on it.

Similar consideration is given to opaque types, since we only need to consider alias bounds if we're *not* in reveal-all mode, since similarly we'd be able to reveal the opaque types and prove any bounds that way.

This does not remove that hacky "eager projection replacement" logic from object bounds, which are somewhat like alias bounds. But removing this eager normalization behavior (added in #108333) would require full coinduction to be enabled. Compare to #110628, which does remove this object-bound custom logic but requires coinduction to be sound.

r? `@lcnr`
2023-05-10 06:12:13 +02:00
..
rustc fix link 2023-03-11 10:53:47 -06:00
rustc_abi Reorder to keep duplicate checks in sync. 2023-05-05 16:30:32 -07:00
rustc_apfloat
rustc_arena Deny the unsafe_op_in_unsafe_fn lint in 2023-04-28 21:00:54 -07:00
rustc_ast Rollup merge of #111215 - BoxyUwU:resolve_anon_consts_differently, r=cjgillot 2023-05-09 20:49:32 +02:00
rustc_ast_lowering Rollup merge of #111215 - BoxyUwU:resolve_anon_consts_differently, r=cjgillot 2023-05-09 20:49:32 +02:00
rustc_ast_passes Add feature gate 2023-05-05 21:44:48 +02:00
rustc_ast_pretty Migrate offset_of from a macro to builtin # syntax 2023-05-05 21:44:13 +02:00
rustc_attr Improve check-cfg diagnostics (part 2) 2023-05-05 13:06:48 +02:00
rustc_baked_icu_data Regen baked data 2023-05-02 10:45:16 -07:00
rustc_borrowck Rollup merge of #110583 - Ezrashaw:tweak-make-mut-spans, r=estebank 2023-05-09 12:33:45 +05:30
rustc_builtin_macros Rollup merge of #110694 - est31:builtin, r=petrochenkov 2023-05-09 12:33:45 +05:30
rustc_codegen_cranelift use EarlyBinder in tcx.(try_)subst_mir_and_normalize_erasing_regions 2023-05-06 22:32:39 -06:00
rustc_codegen_gcc Add todo for filter landing pad 2023-05-07 12:38:47 +01:00
rustc_codegen_llvm Rollup merge of #104070 - nbdd0121:unwind, r=Amanieu 2023-05-08 09:30:21 -07:00
rustc_codegen_ssa Rollup merge of #110304 - cchiw:master, r=davidtwco 2023-05-09 12:33:44 +05:30
rustc_const_eval use EarlyBinder in tcx.(try_)subst_mir_and_normalize_erasing_regions 2023-05-06 22:32:39 -06:00
rustc_data_structures Rollup merge of #111252 - matthewjasper:min-spec-improvements, r=compiler-errors 2023-05-09 12:33:46 +05:30
rustc_driver
rustc_driver_impl Rollup merge of #111004 - clubby789:migrate-mir-transform, r=oli-obk 2023-05-08 09:30:22 -07:00
rustc_error_codes Rollup merge of #111215 - BoxyUwU:resolve_anon_consts_differently, r=cjgillot 2023-05-09 20:49:32 +02:00
rustc_error_messages Rollup merge of #111104 - Manishearth:icuup, r=compiler-errors 2023-05-03 16:42:50 -07:00
rustc_errors Rollup merge of #111004 - clubby789:migrate-mir-transform, r=oli-obk 2023-05-08 09:30:22 -07:00
rustc_expand Rollup merge of #108801 - fee1-dead-contrib:c-str, r=compiler-errors 2023-05-05 18:40:33 +05:30
rustc_feature Rollup merge of #110694 - est31:builtin, r=petrochenkov 2023-05-09 12:33:45 +05:30
rustc_fluent_macro Remove unused synstructure dep 2023-04-22 22:03:33 +01:00
rustc_fs_util Add try_canonicalize to rustc_fs_util and use it over fs::canonicalize 2023-03-16 21:50:23 +01:00
rustc_graphviz enable rust_2018_idioms for doctests 2023-05-07 00:12:29 +03:00
rustc_hir Rollup merge of #108801 - fee1-dead-contrib:c-str, r=compiler-errors 2023-05-05 18:40:33 +05:30
rustc_hir_analysis Rollup merge of #111215 - BoxyUwU:resolve_anon_consts_differently, r=cjgillot 2023-05-09 20:49:32 +02:00
rustc_hir_pretty Rip it out 2023-05-01 16:15:13 +08:00
rustc_hir_typeck Rollup merge of #110504 - compiler-errors:tweak-borrow-sugg, r=cjgillot 2023-05-09 12:33:44 +05:30
rustc_incremental Rollup merge of #111024 - saethlin:stringify-full-svh, r=oli-obk 2023-05-04 08:09:04 +02:00
rustc_index Decorative changes to IndexVec 2023-04-24 13:53:37 +00:00
rustc_infer Rollup merge of #109410 - fmease:iat-alias-kind-inherent, r=compiler-errors 2023-05-08 09:30:21 -07:00
rustc_interface Auto merge of #109421 - mhammerly:extern-force-option, r=petrochenkov 2023-05-06 11:24:37 +00:00
rustc_lexer address comments 2023-05-02 10:32:07 +00:00
rustc_lint Rollup merge of #109410 - fmease:iat-alias-kind-inherent, r=compiler-errors 2023-05-08 09:30:21 -07:00
rustc_lint_defs Auto merge of #106621 - ozkanonur:enable-elided-lifetimes-for-doctests, r=Mark-Simulacrum 2023-05-08 04:50:28 +00:00
rustc_llvm Rollup merge of #111274 - cuviper:print-target-cpus, r=Mark-Simulacrum 2023-05-06 23:32:03 +02:00
rustc_log Stabilize IsTerminal 2023-04-10 17:24:23 +09:00
rustc_macros Rollup merge of #111120 - chenyukang:yukang-suggest-let, r=Nilstrieb 2023-05-09 12:33:46 +05:30
rustc_metadata Auto merge of #109421 - mhammerly:extern-force-option, r=petrochenkov 2023-05-06 11:24:37 +00:00
rustc_middle Auto merge of #106285 - cjgillot:refprop-ssa, r=JakobDegen 2023-05-09 21:54:34 +00:00
rustc_mir_build Rollup merge of #108801 - fee1-dead-contrib:c-str, r=compiler-errors 2023-05-05 18:40:33 +05:30
rustc_mir_dataflow Explicitly skip arguments. 2023-05-09 17:59:35 +00:00
rustc_mir_transform Correct StorageLive comment. 2023-05-09 17:59:35 +00:00
rustc_monomorphize use EarlyBinder in tcx.(try_)subst_mir_and_normalize_erasing_regions 2023-05-06 22:32:39 -06:00
rustc_parse Rollup merge of #111120 - chenyukang:yukang-suggest-let, r=Nilstrieb 2023-05-09 12:33:46 +05:30
rustc_parse_format Fix typos in compiler 2023-04-10 22:02:52 +02:00
rustc_passes Auto merge of #111014 - klensy:no-rc, r=WaffleLapkin 2023-05-04 20:49:23 +00:00
rustc_plugin_impl Add rustc_fluent_macro to decouple fluent from rustc_macros 2023-04-18 18:56:22 +00:00
rustc_privacy Auto merge of #111371 - compiler-errors:revert-110907, r=petrochenkov 2023-05-09 15:16:17 +00:00
rustc_query_impl Remove QueryEngine trait 2023-04-26 07:46:13 +02:00
rustc_query_system Restrict From<S> for {D,Subd}iagnosticMessage. 2023-05-03 08:44:39 +10:00
rustc_resolve Revert "Populate effective visibilities in rustc_privacy" 2023-05-08 21:47:44 +00:00
rustc_serialize Factor out more repeated code in {write,read}_leb128!. 2023-05-04 13:52:14 +10:00
rustc_session Rollup merge of #105354 - BlackHoleFox:apple-deployment-printer, r=oli-obk 2023-05-08 19:41:48 +09:00
rustc_smir Add GeneratorDrop terminator to SMIR 2023-05-05 10:34:55 -03:00
rustc_span Limit lifetime of format_args!() with inlined args. 2023-05-09 16:08:40 +02:00
rustc_symbol_mangling Rollup merge of #105452 - rcvalle:rust-cfi-3, r=bjorn3 2023-05-03 16:42:48 -07:00
rustc_target Rollup merge of #111332 - loongarch-rs:inline-asm, r=Amanieu 2023-05-08 19:41:51 +09:00
rustc_trait_selection Consolidate the 'match assumption' type methods in GoalKind 2023-05-09 20:37:50 +00:00
rustc_traits IAT: Introduce AliasKind::Inherent 2023-05-04 16:59:10 +02:00
rustc_transmute Remove unused TypeFoldable/TypeVisitable impls. 2023-04-26 15:19:50 +10:00
rustc_ty_utils Fix miscompilation when adding default method to Future 2023-05-08 17:06:48 +02:00
rustc_type_ir IAT: Introduce AliasKind::Inherent 2023-05-04 16:59:10 +02:00