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Matthias Krüger 260e04879e Rollup merge of #107190 - fmease:fix-81698, r=compiler-errors 
Recover from more const arguments that are not wrapped in curly braces

Recover from some array, borrow, tuple & arithmetic expressions in const argument positions that lack curly braces and provide a suggestion to fix the issue continuing where #92884 left off. Examples of such expressions: `[]`, `[0]`, `[1, 2]`, `[0; 0xff]`, `&9`, `("", 0)` and `(1 + 2) * 3` (we previously did not recover from them).

I am not entirely happy with my current solution because the code that recovers from `[0]` (coinciding with a malformed slice type) and `[0; 0]` (coinciding with a malformed array type) is quite fragile as the aforementioned snippets are actually successfully parsed as types by `parse_ty` since it itself already recovers from them (returning `[⟨error⟩]` and `[⟨error⟩; 0]` respectively) meaning I have to manually look for `TyKind::Err`s and construct a separate diagnostic for the suggestion to attach to (thereby emitting two diagnostics in total).

Fixes #81698.
`@rustbot` label A-diagnostics
r? diagnostics
2023-01-28 05:20:17 +01:00
..
array-impls
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auxiliary
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backcompat
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defaults
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early
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generic_arg_infer
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generic_const_exprs
i am free
2023-01-18 04:45:43 +00:00
infer
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2023-01-11 09:32:08 +00:00
issues
Fix known-bug, silence ICE stderr
2023-01-19 20:20:58 +00:00
late-bound-vars
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2023-01-11 09:32:08 +00:00
min_const_generics
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occurs-check
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parser-error-recovery
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std
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type-dependent
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apit-with-const-param.rs
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arg-in-pat-1.rs
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arg-in-pat-2.rs
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arg-in-pat-3.rs
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argument_order.rs
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argument_order.stderr
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array-wrapper-struct-ctor.rs
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assoc_const_eq_diagnostic.rs
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assoc_const_eq_diagnostic.stderr
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associated-type-bound-fail.rs
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associated-type-bound-fail.stderr
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associated-type-bound.rs
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bad-const-generic-exprs.rs
recover more unbraced const args
2023-01-27 19:26:04 +01:00
bad-const-generic-exprs.stderr
recover more unbraced const args
2023-01-27 19:26:04 +01:00
broken-mir-1.rs
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broken-mir-2.rs
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cannot-infer-type-for-const-param.rs
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coerce_unsized_array.rs
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concrete-const-as-fn-arg.rs
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concrete-const-impl-method.rs
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condition-in-trait-const-arg.rs
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const_trait_fn-issue-88433.rs
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const-arg-in-const-arg.full.stderr
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const-arg-in-const-arg.min.stderr
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const-arg-in-const-arg.rs
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const-arg-in-fn.rs
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const-arg-type-arg-misordered.rs
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const-arg-type-arg-misordered.stderr
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const-argument-cross-crate-mismatch.rs
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const-argument-cross-crate.rs
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const-argument-if-length.full.stderr
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const-argument-if-length.min.stderr
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const-argument-if-length.rs
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const-argument-non-static-lifetime.min.stderr
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const-argument-non-static-lifetime.rs
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const-fn-with-const-param.rs
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const-generic-default-wont-borrowck.rs
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const-generic-function.rs
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const-generic-type_name.rs
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const-param-after-const-literal-arg.rs
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const-param-before-other-params.rs
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const-param-elided-lifetime.rs
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const-param-in-async.rs
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const-param-type-depends-on-const-param.full.stderr
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const-param-type-depends-on-const-param.min.stderr
defer array len printing to const arg printing
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const-param-type-depends-on-const-param.rs
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const-param-type-depends-on-type-param-ungated.rs
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const-param-type-depends-on-type-param.rs
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const-parameter-uppercase-lint.rs
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const-parameter-uppercase-lint.stderr
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core-types.rs
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cross_crate_complex.rs
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deref-into-array-generic.rs
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different_generic_args_array.rs
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dont-evaluate-array-len-on-err-1.rs
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dont-evaluate-array-len-on-err-1.stderr
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dyn-supertraits.rs
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ensure_is_evaluatable.rs
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enum-variants.rs
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exhaustive-value.rs
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exhaustive-value.stderr
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expose-default-substs-param-env.rs
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float-generic.adt_const_params.stderr
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float-generic.rs
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float-generic.simple.stderr
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fn_with_two_const_inputs.rs
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fn_with_two_same_const_inputs.rs
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fn-const-param-call.full.stderr
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fn-const-param-call.rs
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fn-const-param-infer.full.stderr
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fn-const-param-infer.min.stderr
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fn-const-param-infer.rs
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forbid-non-structural_match-types.rs
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forbid-non-structural_match-types.stderr
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foreign-item-const-parameter.rs
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foreign-item-const-parameter.stderr
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generic-param-mismatch.rs
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ice-const-generic-function-return-ty.rs
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impl-const-generic-struct.rs
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incorrect-number-of-const-args.rs
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infer_arg_from_pat.rs
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infer_arr_len_from_pat.rs
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inhabited-assoc-ty-ice-1.rs
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inhabited-assoc-ty-ice-2.rs
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integer-literal-generic-arg-in-where-clause.rs
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intrinsics-type_name-as-const-argument.min.stderr
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intrinsics-type_name-as-const-argument.rs
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invalid-const-arg-for-type-param.rs
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invalid-const-arg-for-type-param.stderr
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invalid-constant-in-args.rs
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invalid-constant-in-args.stderr
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invalid-enum.rs
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invalid-enum.stderr
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invariant.rs
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invariant.stderr
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issue-46511.rs
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issue-66451.rs
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issue-70408.rs
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issue-80471.rs
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issue-93647.rs
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issue-93647.stderr
fix fmt and bless
2023-01-12 02:28:38 +00:00
issue-97007.rs
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issue-102124.rs
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issue-105689.rs
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issue-106419-struct-with-multiple-const-params.rs
Added UI test case for issue #106419
2023-01-19 15:39:05 +01:00
legacy-const-generics-bad.rs
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legacy-const-generics-bad.stderr
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legacy-const-generics.rs
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nested-type.full.stderr
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nested-type.min.stderr
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nested-type.rs
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outer-lifetime-in-const-generic-default.rs
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overlapping_impls.rs
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params-in-ct-in-ty-param-lazy-norm.full.stderr
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params-in-ct-in-ty-param-lazy-norm.rs
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parent_generics_of_encoding_impl_trait.rs
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parent_generics_of_encoding.rs
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projection-as-arg-const.rs
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promotion.rs
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slice-const-param.rs
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sneaky-array-repeat-expr.rs
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struct-with-invalid-const-param.rs
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suggest_const_for_array.rs
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trait-const-args.rs
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transmute-const-param-static-reference.min.stderr
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transmute-const-param-static-reference.rs
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transparent-maybeunit-array-wrapper.rs
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try_unify_ignore_lifetimes.rs
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two_matching_preds.rs
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type_mismatch.rs
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type_mismatch.stderr
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type_not_in_scope.rs
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type_not_in_scope.stderr
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type_of_anon_const.rs
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type-after-const-ok.rs
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types-mismatch-const-args.full.stderr
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types-mismatch-const-args.min.stderr
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types-mismatch-const-args.rs
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unify_with_nested_expr.rs
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unify_with_nested_expr.stderr
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uninferred-consts-during-codegen-1.rs
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uninferred-consts-during-codegen-2.rs
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unknown_adt.rs
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unknown_adt.stderr
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unused_braces.fixed
Fix unused_braces on generic const expr macro call
2023-01-14 15:49:08 +00:00
unused_braces.full.fixed
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
unused_braces.min.fixed
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
unused_braces.rs
Fix unused_braces on generic const expr macro call
2023-01-14 15:49:08 +00:00
unused_braces.stderr
Fix unused_braces on generic const expr macro call
2023-01-14 15:49:08 +00:00
unused-const-param.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
unused-type-param-suggestion.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
unused-type-param-suggestion.stderr
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
where-clauses.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00