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a41a13f775
rust/compiler
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Aaron Hill a41a13f775
Add ConstraintCategory::Usage for handling aggregate construction 
In some cases, we emit borrowcheck diagnostics pointing
at a particular field expression in a struct expression
(e.g. `MyStruct { field: my_expr }`). However, this
behavior currently relies on us choosing the
`ConstraintCategory::Boring` with the 'correct' span.
When adding additional variants to `ConstraintCategory`,
(or changing existing usages away from `ConstraintCategory::Boring`),
the current behavior can easily get broken, since a non-boring
constraint will get chosen over a boring one.

To make the diagnostic output less fragile, this commit
adds a `ConstraintCategory::Usage` variant. We use this variant
for the temporary assignments created for each field of
an aggregate we are constructing.

Using this new variant, we can emit a message mentioning
"this usage", emphasizing the fact that the error message
is related to the specific use site (in the struct expression).

This is preparation for additional work on improving NLL error messages
(see #57374)
2021-09-16 12:36:19 -05:00
..
rustc rfc3052: Remove authors field from Cargo manifests 2021-07-29 14:56:05 -07:00
rustc_apfloat rfc3052: Remove authors field from Cargo manifests 2021-07-29 14:56:05 -07:00
rustc_arena Remove unused arena macro args 2021-08-30 13:09:38 +02:00
rustc_ast Rollup merge of #88775 - pnkfelix:revert-anon-union-parsing, r=davidtwco 2021-09-15 14:56:58 -07:00
rustc_ast_lowering Rollup merge of #88775 - pnkfelix:revert-anon-union-parsing, r=davidtwco 2021-09-15 14:56:58 -07:00
rustc_ast_passes Rollup merge of #88775 - pnkfelix:revert-anon-union-parsing, r=davidtwco 2021-09-15 14:56:58 -07:00
rustc_ast_pretty Revert "Implement Anonymous{Struct, Union} in the AST" 2021-09-09 09:14:17 -04:00
rustc_attr Remove Session.used_attrs and move logic to CheckAttrVisitor 2021-08-21 13:27:27 -05:00
rustc_borrowck Add ConstraintCategory::Usage for handling aggregate construction 2021-09-16 12:36:19 -05:00
rustc_builtin_macros Rollup merge of #88209 - Amanieu:asm_in_underscore, r=nagisa 2021-09-11 08:23:40 -07:00
rustc_codegen_cranelift Auto merge of #88839 - nbdd0121:alignof, r=nagisa 2021-09-12 23:49:24 +00:00
rustc_codegen_llvm Auto merge of #87867 - bjorn3:unique_type_id_interner, r=wesleywiser 2021-09-15 12:34:31 +00:00
rustc_codegen_ssa Auto merge of #88839 - nbdd0121:alignof, r=nagisa 2021-09-12 23:49:24 +00:00
rustc_const_eval Rollup merge of #88933 - tmiasko:remove-min-align-of, r=oli-obk 2021-09-15 14:57:03 -07:00
rustc_data_structures Rollup merge of #88711 - Mark-Simulacrum:fix-dfs-bug, r=jackh726 2021-09-12 03:44:57 -07:00
rustc_driver Rename rustc_mir to rustc_const_eval. 2021-09-07 20:46:26 +02:00
rustc_error_codes Update E0785.md 2021-08-30 22:18:55 -07:00
rustc_errors Auto merge of #87915 - estebank:fancy-spans, r=oli-obk 2021-09-13 16:31:12 +00:00
rustc_expand Auto merge of #84373 - cjgillot:resolve-span, r=michaelwoerister,petrochenkov 2021-09-11 23:35:28 +00:00
rustc_feature Rollup merge of #88775 - pnkfelix:revert-anon-union-parsing, r=davidtwco 2021-09-15 14:56:58 -07:00
rustc_fs_util rfc3052: Remove authors field from Cargo manifests 2021-07-29 14:56:05 -07:00
rustc_graphviz rfc3052: Remove authors field from Cargo manifests 2021-07-29 14:56:05 -07:00
rustc_hir Auto merge of #88558 - fee1-dead:const-drop, r=oli-obk 2021-09-15 03:51:03 +00:00
rustc_hir_pretty don't convert types into identical types 2021-09-11 10:32:38 +02:00
rustc_incremental Auto merge of #83214 - cjgillot:dep-map, r=michaelwoerister 2021-09-06 23:58:16 +00:00
rustc_index Suggested changes 2021-08-27 16:21:25 -07:00
rustc_infer Rollup merge of #88336 - jackh726:gats-where-constraints, r=estebank 2021-09-12 03:44:53 -07:00
rustc_interface Rollup merge of #87320 - danakj:debug-compilation-dir, r=michaelwoerister 2021-09-15 14:56:56 -07:00
rustc_lexer Fix more “a”/“an” typos 2021-08-22 17:27:18 +02:00
rustc_lint Auto merge of #88558 - fee1-dead:const-drop, r=oli-obk 2021-09-15 03:51:03 +00:00
rustc_lint_defs Add reachable_patterns lint to rfc-2008-non_exhaustive 2021-09-14 15:45:13 -04:00
rustc_llvm RustWrapper: remove some uses of AttrBuilder 2021-09-08 10:47:41 -04:00
rustc_macros Use a separate interner type for UniqueTypeId 2021-09-13 14:42:06 +02:00
rustc_metadata Auto merge of #88759 - Amanieu:panic_in_drop, r=nagisa,eddyb 2021-09-12 20:48:09 +00:00
rustc_middle Add ConstraintCategory::Usage for handling aggregate construction 2021-09-16 12:36:19 -05:00
rustc_mir_build Add ConstraintCategory::Usage for handling aggregate construction 2021-09-16 12:36:19 -05:00
rustc_mir_dataflow Introduce NullOp::AlignOf 2021-09-13 00:08:35 +01:00
rustc_mir_transform Auto merge of #88839 - nbdd0121:alignof, r=nagisa 2021-09-12 23:49:24 +00:00
rustc_monomorphize Rebase fallout. 2021-09-08 20:40:30 +02:00
rustc_parse Rollup merge of #88775 - pnkfelix:revert-anon-union-parsing, r=davidtwco 2021-09-15 14:56:58 -07:00
rustc_parse_format rfc3052: Remove authors field from Cargo manifests 2021-07-29 14:56:05 -07:00
rustc_passes don't convert types into identical types 2021-09-11 10:32:38 +02:00
rustc_plugin_impl Remove Session.used_attrs and move logic to CheckAttrVisitor 2021-08-21 13:27:27 -05:00
rustc_privacy add a CastKind to Node::Cast 2021-09-09 01:32:03 +01:00
rustc_query_impl Rollup merge of #88709 - BoxyUwU:thir-abstract-const, r=lcnr 2021-09-12 03:44:56 -07:00
rustc_query_system Auto merge of #78780 - cjgillot:req, r=Mark-Simulacrum 2021-09-11 20:39:47 +00:00
rustc_resolve Auto merge of #87915 - estebank:fancy-spans, r=oli-obk 2021-09-13 16:31:12 +00:00
rustc_save_analysis Bump stage0 compiler to 1.56 2021-09-08 20:51:05 -04:00
rustc_serialize rustc: Remove local variable IDs from Exports 2021-09-10 23:41:48 +03:00
rustc_session Rollup merge of #87320 - danakj:debug-compilation-dir, r=michaelwoerister 2021-09-15 14:56:56 -07:00
rustc_span Rollup merge of #88775 - pnkfelix:revert-anon-union-parsing, r=davidtwco 2021-09-15 14:56:58 -07:00
rustc_symbol_mangling Rollup merge of #85534 - csmoe:demagnle-assert, r=michaelwoerister 2021-08-29 16:25:28 +02:00
rustc_target Auto merge of #87794 - bonega:enum_niche_prefer_zero, r=nagisa 2021-09-13 22:14:57 +00:00
rustc_trait_selection Auto merge of #88558 - fee1-dead:const-drop, r=oli-obk 2021-09-15 03:51:03 +00:00
rustc_traits Auto merge of #88371 - Manishearth:rollup-pkkjsme, r=Manishearth 2021-08-27 01:07:17 +00:00
rustc_ty_utils Remove the queries 2021-09-09 05:21:32 +00:00
rustc_type_ir Use index newtyping for TyVid 2021-09-06 22:38:06 -04:00
rustc_typeck Auto merge of #86809 - DevinR528:reachable-pat, r=Nadrieril 2021-09-16 05:29:22 +00:00