rust/compiler
bors 0b71ffca18 Auto merge of #100654 - compiler-errors:rework-point-at-arg, r=estebank
Rework "point at arg" suggestions to be more accurate

Fixes #100560

Introduce a new set of `ObligationCauseCode`s which have additional bookeeping for what expression caused the obligation, and which predicate caused the obligation. This allows us to look at the _unsubstituted_ signature to find out which parameter or generic type argument caused an obligaton to fail.

This means that (in most cases) we significantly improve the likelihood of pointing out the right argument that causes a fulfillment error. Also, since this logic isn't happening in just the `select_where_possible_and_mutate_fulfillment()` calls in the argument checking code, but instead during all trait selection in `FnCtxt`, we are also able to point out the correct argument even if inference means that we don't know whether an obligation has failed until well after a call expression has been checked.

r? `@ghost`
2022-08-21 21:52:56 +00:00
..
rustc Don't rerun the build script for the compiler each time on linux 2022-07-10 23:57:25 -05:00
rustc_apfloat Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_arena Rollup merge of #100822 - WaffleLapkin:no_offset_question_mark, r=scottmcm 2022-08-21 16:54:07 +02:00
rustc_ast Auto merge of #100564 - nnethercote:box-ast-MacCall, r=spastorino 2022-08-20 10:26:54 +00:00
rustc_ast_lowering Rollup merge of #100018 - nnethercote:clean-up-LitKind, r=petrochenkov 2022-08-17 12:32:49 +02:00
rustc_ast_passes Reenable early feature-gates as future-compat warnings 2022-08-17 06:53:18 -05:00
rustc_ast_pretty Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_attr Adjust cfgs 2022-08-12 16:28:15 -04:00
rustc_borrowck Rollup merge of #100761 - lcnr:mir-typeck-cleanup, r=compiler-errors 2022-08-21 16:54:04 +02:00
rustc_builtin_macros Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_codegen_cranelift Rollup merge of #100822 - WaffleLapkin:no_offset_question_mark, r=scottmcm 2022-08-21 16:54:07 +02:00
rustc_codegen_gcc Replace most uses of pointer::offset with add and sub 2022-08-21 02:21:41 +04:00
rustc_codegen_llvm Rollup merge of #100460 - cuviper:drop-llvm-12, r=nagisa 2022-08-16 06:05:57 +02:00
rustc_codegen_ssa Rollup merge of #100208 - RalfJung:dyn-upcast-nop, r=petrochenkov 2022-08-19 12:26:41 +05:30
rustc_const_eval Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_data_structures Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_driver Error on broken pipe but do not ICE 2022-08-02 01:08:50 +01:00
rustc_error_codes Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_error_messages Rollup merge of #100723 - 5225225:the-easy-ones, r=compiler-errors 2022-08-20 07:09:03 +02:00
rustc_errors Add Handler::struct_diagnostic() 2022-08-21 09:17:43 +02:00
rustc_expand Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_feature Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_fs_util Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_graphviz Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_hir Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_hir_pretty Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_incremental Remove trait_of_item query. 2022-08-01 21:39:26 +02:00
rustc_index Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_infer Rework point-at-arg 2022-08-21 02:34:52 +00:00
rustc_interface Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_lexer Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_lint Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_lint_defs Rollup merge of #99935 - CAD97:unstable-syntax-lints, r=petrochenkov 2022-08-20 19:45:10 +02:00
rustc_llvm Auto merge of #100627 - krasimirgg:lto-llvm-16, r=cuviper 2022-08-21 07:19:49 +00:00
rustc_log Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_macros Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_metadata Auto merge of #100209 - cjgillot:source-file-index, r=estebank 2022-08-19 15:31:25 +00:00
rustc_middle More docs 2022-08-21 02:35:11 +00:00
rustc_mir_build Rollup merge of #100081 - RalfJung:unused-unsafe-in-unsafe-fn, r=jackh726 2022-08-19 12:26:40 +05:30
rustc_mir_dataflow Remove redundant TransferWrapper struct 2022-08-01 17:08:19 +02:00
rustc_mir_transform Rollup merge of #100522 - cjgillot:inline-polymorphic-recursion, r=tmiasko 2022-08-19 12:26:43 +05:30
rustc_monomorphize Minor syntax and formatting update to doc comment 2022-08-19 10:53:18 -07:00
rustc_parse Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_parse_format Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_passes Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_plugin_impl remove currently unused deps 2022-06-13 22:20:51 +03:00
rustc_privacy Replace #[lint/warning/error] with #[diag] 2022-08-21 09:17:43 +02:00
rustc_query_impl Rollup merge of #100723 - 5225225:the-easy-ones, r=compiler-errors 2022-08-20 07:09:03 +02:00
rustc_query_system Auto merge of #100441 - nnethercote:shrink-ast-Attribute, r=petrochenkov 2022-08-16 07:54:22 +00:00
rustc_resolve Rollup merge of #100592 - cjgillot:debug-import-kind, r=TaKO8Ki 2022-08-19 12:26:44 +05:30
rustc_save_analysis Remove DefId from AssocItemContainer. 2022-08-01 21:38:45 +02:00
rustc_serialize Rollup merge of #100822 - WaffleLapkin:no_offset_question_mark, r=scottmcm 2022-08-21 16:54:07 +02:00
rustc_session Add Handler::struct_diagnostic() 2022-08-21 09:17:43 +02:00
rustc_smir Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_span More docs 2022-08-21 02:35:11 +00:00
rustc_symbol_mangling Auto merge of #95548 - rcvalle:rust-cfi-2, r=nagisa 2022-07-24 01:22:36 +00:00
rustc_target Rollup merge of #100636 - cutsoy:revert-77716, r=davidtwco 2022-08-20 19:45:13 +02:00
rustc_trait_selection Bless tests after #100769 2022-08-21 04:04:05 +00:00
rustc_traits Add diagnostic translation lints to crates that don't emit them 2022-08-18 19:29:02 +01:00
rustc_transmute ADD - diagnostic lints to rustc_transmute 2022-08-21 09:17:09 -04:00
rustc_ty_utils Add bound_impl_subject and bound_return_ty 2022-08-03 01:02:46 -04:00
rustc_type_ir ADD - diagnostic lints to type_ir 2022-08-18 13:33:03 -04:00
rustc_typeck Auto merge of #100654 - compiler-errors:rework-point-at-arg, r=estebank 2022-08-21 21:52:56 +00:00