Esteban Küber 73fe905f3c Detect inherent method behind deref being shadowed by trait method ...

```
error[E0277]: the trait bound `Rc<RefCell<S>>: Borrow<S>` is not satisfied
  --> $DIR/shadowed-intrinsic-method-deref.rs:16:22
   |
LL |     let sb : &S = &s.borrow();
   |                      ^^^^^^ the trait `Borrow<S>` is not implemented for `Rc<RefCell<S>>`
   |
help: the trait `Borrow<S>` is not implemented for `Rc<RefCell<S>>`
      but trait `Borrow<RefCell<S>>` is implemented for it
  --> $SRC_DIR/alloc/src/rc.rs:LL:COL
   = help: for that trait implementation, expected `RefCell<S>`, found `S`
   = note: there's an inherent method on `RefCell<S>` of the same name, which can be auto-dereferenced from `&RefCell<T>`
help: to access the inherent method on `RefCell<S>`, use the fully-qualified path
   |
LL -     let sb : &S = &s.borrow();
LL +     let sb : &S = &RefCell::borrow(&s);
   |
```

In the example above, method `borrow` is available both on `<RefCell<S> as Borrow<S>>` *and* on `RefCell<S>`. Adding the import `use std::borrow::Borrow;` causes `s.borrow()` to find the former instead of the latter. We now point out that the other exists, and provide a suggestion on how to call it.

2026-03-10 23:24:27 +00:00

..

auxiliary

…

issues

Tweak auto trait errors

2025-08-04 17:20:07 +00:00

supertrait-shadowing

Remove unused features in tests

2026-03-04 08:06:45 +08:00

assc-func-issue-149038.rs

add suggestion for associated function

2025-11-21 21:29:56 +08:00

assc-func-issue-149038.stderr

add suggestion for associated function

2025-11-21 21:29:56 +08:00

assign-to-method.rs

Continue to borrowck even if there were previous errors

2024-02-08 08:10:43 +00:00

assign-to-method.stderr

…

bad-wf-when-selecting-method.rs

UI tests: add missing diagnostic kinds where possible

2025-04-08 23:06:31 +03:00

bad-wf-when-selecting-method.stderr

Do not ICE when encountering predicates from other items in method error reporting

2025-01-03 19:39:39 +00:00

call_method_unknown_pointee.rs

probe_op silence ambiguity errors if tainted

2026-02-16 19:36:09 +00:00

call_method_unknown_pointee.stderr

probe_op silence ambiguity errors if tainted

2026-02-16 19:36:09 +00:00

call_method_unknown_referent2.rs

Arbitrary self types v2: use Receiver trait

2024-12-11 11:59:12 +00:00

call_method_unknown_referent.rs

probe_op silence ambiguity errors if tainted

2026-02-16 19:36:09 +00:00

call_method_unknown_referent.stderr

probe_op silence ambiguity errors if tainted

2026-02-16 19:36:09 +00:00

clone-missing.rs

Coalesce duplicate missing clone tests

2025-04-29 12:46:26 +02:00

clone-missing.stderr

Coalesce duplicate missing clone tests

2025-04-29 12:46:26 +02:00

disambiguate-associated-function-first-arg.rs

UI tests: add missing diagnostic kinds where possible

2025-04-08 23:06:31 +03:00

disambiguate-associated-function-first-arg.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

disambiguate-multiple-blanket-impl.rs

Unify suggestion wording

2023-10-17 17:33:55 +00:00

disambiguate-multiple-blanket-impl.stderr

Do not gather local all together at the beginning of typeck

2025-05-05 14:27:09 +00:00

disambiguate-multiple-impl.rs

Unify suggestion wording

2023-10-17 17:33:55 +00:00

disambiguate-multiple-impl.stderr

Do not gather local all together at the beginning of typeck

2025-05-05 14:27:09 +00:00

disambiguate-multiple-trait-2.rs

Unify suggestion wording

2023-10-17 17:33:55 +00:00

disambiguate-multiple-trait-2.stderr

Do not gather local all together at the beginning of typeck

2025-05-05 14:27:09 +00:00

disambiguate-multiple-trait.rs

Unify suggestion wording

2023-10-17 17:33:55 +00:00

disambiguate-multiple-trait.stderr

Do not gather local all together at the beginning of typeck

2025-05-05 14:27:09 +00:00

dont-ice-on-object-lookup-w-error-region.rs

Don't ICE when encountering error regions when confirming object method candidate

2024-07-26 13:18:35 -04:00

dont-ice-on-object-lookup-w-error-region.stderr

Make missing lifetime suggestion verbose

2025-06-24 18:59:42 +00:00

dont-suggest-import-on-deref-err.rs

Don't give method suggestions when method probe fails due to bad impl of Deref

2024-09-29 11:57:18 -04:00

dont-suggest-import-on-deref-err.stderr

Don't give method suggestions when method probe fails due to bad impl of Deref

2024-09-29 11:57:18 -04:00

field-method-suggestion-using-return-ty.rs

…

field-method-suggestion-using-return-ty.stderr

…

filter-relevant-fn-bounds.rs

update tests and bless expectations

2025-12-10 14:47:49 +00:00

filter-relevant-fn-bounds.stderr

update tests and bless expectations

2025-12-10 14:47:49 +00:00

fulfillment-disqualifies-method.rs

Use fulfillment, not evaluate, during method probe

2024-04-21 20:10:12 -04:00

ident-from-macro-expansion.rs

Point of macro expansion from call expr if it involves macro var

2025-03-03 23:53:42 +00:00

ident-from-macro-expansion.stderr

Point of macro expansion from call expr if it involves macro var

2025-03-03 23:53:42 +00:00

inherent-bound-in-probe.rs

Use tcx.short_string() in more diagnostics

2025-08-07 21:18:00 +00:00

inherent-bound-in-probe.stderr

On E0277, point at type that doesn't implement bound

2025-08-22 17:55:15 +00:00

inherent-method-resolution-on-deref-type-53843.rs

Rehome tests/ui/issues/ tests [1/?]

2025-07-24 17:01:44 -04:00

inherent-methods-same-name.rs

cleaned up some tests

2025-06-11 20:51:49 +05:00

issue-3707.rs

Move tests

2023-08-28 17:47:37 -03:00

issue-3707.stderr

use verbose for associated functions suggestion

2025-11-21 20:34:35 +08:00

issue-7950.rs

Move tests

2024-03-03 16:30:48 -03:00

issue-7950.stderr

Move tests

2024-03-03 16:30:48 -03:00

issue-19521.rs

Move tests

2024-03-03 16:30:48 -03:00

issue-19521.stderr

Avoid extra path trimming in method not found error

2025-05-24 23:31:07 +02:00

leak-check-disquality.rs

Use fulfillment, not evaluate, during method probe

2024-04-21 20:10:12 -04:00

method-ambig-one-trait-unknown-int-type.rs

…

method-ambig-one-trait-unknown-int-type.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-ambig-two-traits-cross-crate.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-ambig-two-traits-cross-crate.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-ambig-two-traits-from-bounds.rs

…

method-ambig-two-traits-from-bounds.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-ambig-two-traits-from-impls2.rs

…

method-ambig-two-traits-from-impls2.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-ambig-two-traits-from-impls.rs

…

method-ambig-two-traits-from-impls.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-ambig-two-traits-with-default-method.rs

…

method-ambig-two-traits-with-default-method.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-ambiguity-no-rcvr.rs

Don't expect a rcvr in print_disambiguation_help

2023-11-12 19:59:13 +00:00

method-ambiguity-no-rcvr.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-argument-inference-associated-type.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-call-err-msg.rs

…

method-call-err-msg.stderr

More sophisticated span trimming

2025-02-21 00:41:17 +00:00

method-call-lifetime-args-fail.rs

…

method-call-lifetime-args-fail.stderr

Revert suggestion verbosity change

2024-07-22 22:51:53 +00:00

method-call-lifetime-args-lint-fail.rs

…

method-call-lifetime-args-lint-fail.stderr

…

method-call-lifetime-args-lint.rs

…

method-call-lifetime-args-lint.stderr

…

method-call-lifetime-args-subst-index.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-call-lifetime-args-unresolved.rs

…

method-call-lifetime-args-unresolved.stderr

fix: Add col separator before secondary messages with no source

2025-08-26 15:15:17 -06:00

method-call-lifetime-args.rs

…

method-call-lifetime-args.stderr

…

method-call-type-binding.rs

Rename HIR TypeBinding to AssocItemConstraint and related cleanup

2024-05-30 22:52:33 +02:00

method-call-type-binding.stderr

Rename HIR TypeBinding to AssocItemConstraint and related cleanup

2024-05-30 22:52:33 +02:00

method-deref-to-same-trait-object-with-separate-params.rs

Unimplement unsized_locals

2025-06-13 01:16:36 +02:00

method-deref-to-same-trait-object-with-separate-params.stderr

fix: fix issue 143740, Wrong messages from compiler confusing methods with the same name from different traits

2025-07-17 19:26:39 +08:00

method-early-bound-lifetimes-on-self.rs

tests: remove //@ pretty-expanded usages

2024-11-26 02:50:48 +08:00

method-lookup-order.rs

Fix test problems discovered by the revision check

2024-05-09 14:47:09 +10:00

method-macro-backtrace.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-macro-backtrace.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

method-mut-self-modifies-mut-slice-lvalue.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-normalize-bounds-issue-20604.rs

remove #![allow(stable_features)] from most tests

2026-02-17 08:45:08 +00:00

method-not-found-but-doc-alias.rs

…

method-not-found-but-doc-alias.stderr

Show diff suggestion format on verbose replacement

2025-02-10 20:21:39 +00:00

method-not-found-generic-arg-elision.rs

…

method-not-found-generic-arg-elision.stderr

Use tcx.short_string() in more diagnostics

2025-08-07 21:18:00 +00:00

method-not-found-on-struct.rs

add metadata and bless moved tests

2026-01-18 06:23:47 +01:00

method-not-found-on-struct.stderr

add metadata and bless moved tests

2026-01-18 06:23:47 +01:00

method-on-ambiguous-numeric-type.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-on-ambiguous-numeric-type.stderr

Trim suggestion parts to the subset that is purely additive

2025-02-14 00:44:10 -08:00

method-path-in-pattern.rs

…

method-path-in-pattern.stderr

…

method-probe-no-guessing-dyn-trait.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-projection.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-recursive-blanket-impl.rs

tests: remove //@ pretty-expanded usages

2024-11-26 02:50:48 +08:00

method-recursive-blanket-impl.stderr

bless tests with new lint messages

2025-08-19 21:27:10 +02:00

method-resolvable-path-in-pattern.rs

…

method-resolvable-path-in-pattern.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

method-self-arg-1.rs

compiletest: Make diagnostic kind mandatory on line annotations

2025-04-30 10:44:24 +03:00

method-self-arg-1.stderr

compiletest: Make diagnostic kind mandatory on line annotations

2025-04-30 10:44:24 +03:00

method-self-arg-2.rs

…

method-self-arg-2.stderr

Do not set up wrong span for adjustments

2023-07-10 20:09:26 +00:00

method-self-arg-aux1.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-self-arg-aux2.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-self-arg-trait.rs

Update tests for hidden references to mutable static

2024-09-13 14:10:56 +03:00

method-self-arg.rs

Update tests for hidden references to mutable static

2024-09-13 14:10:56 +03:00

method-trait-object-with-hrtb.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-two-trait-defer-resolution-1.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-two-trait-defer-resolution-2.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

method-two-trait-defer-resolution-2.stderr

bless tests with new lint messages

2025-08-19 21:27:10 +02:00

method-two-traits-distinguished-via-where-clause.rs

tests: remove //@ pretty-expanded usages

2024-11-26 02:50:48 +08:00

method-two-traits-distinguished-via-where-clause.stderr

bless tests with new lint messages

2025-08-19 21:27:10 +02:00

method-value-without-call.rs

cleaned up some tests

2025-06-28 16:24:17 +05:00

method-value-without-call.stderr

cleaned up some tests

2025-06-28 16:24:17 +05:00

method-where-clause.rs

[AUTO-GENERATED] Migrate ui tests from // to //@ directives

2024-02-16 20:02:50 +00:00

missing-method-on-type-parameter.rs

Gate 2018 UI tests

2025-11-27 14:13:58 -05:00

missing-method-on-type-parameter.stderr

Gate 2018 UI tests

2025-11-27 14:13:58 -05:00

opaque_param_in_ufc.rs

Implement #[define_opaque] attribute for functions.

2025-03-11 12:05:02 +00:00

overflow-if-subtyping.rs

add regression test

2025-09-23 08:02:54 +02:00

probe-error-on-infinite-deref.rs

Use tcx.short_string() in more diagnostics

2025-08-07 21:18:00 +00:00

probe-error-on-infinite-deref.stderr

Use tcx.short_string() in more diagnostics

2025-08-07 21:18:00 +00:00

probe-for-diagnostic-doesnt-do-extra-work.rs

Add test to make sure suggestions are still quick

2024-05-13 23:38:31 -04:00

probe-for-diagnostic-doesnt-do-extra-work.stderr

Add test to make sure suggestions are still quick

2024-05-13 23:38:31 -04:00

probe-overflow-due-to-sized-predicate-ordering.rs

Make sure to insert Sized bound first into clauses list

2024-04-01 21:41:45 -04:00

receiver-equality.rs

Relate receiver invariantly in method probe for Mode::Path

2024-09-16 10:55:07 -04:00

receiver-equality.stderr

Avoid extra path trimming in method not found error

2025-05-24 23:31:07 +02:00

rigid-alias-bound-is-not-inherent-2.rs

Gate 2015 UI tests

2025-11-27 11:19:00 -05:00

rigid-alias-bound-is-not-inherent-2.stderr

Gate 2015 UI tests

2025-11-27 11:19:00 -05:00

rigid-alias-bound-is-not-inherent-3.rs

Make sure to treat only param where clauses as inherent

2025-08-24 20:30:52 +00:00

rigid-alias-bound-is-not-inherent-3.stderr

Make sure to treat only param where clauses as inherent

2025-08-24 20:30:52 +00:00

rigid-alias-bound-is-not-inherent.current.stderr

Make sure to treat only param where clauses as inherent

2025-08-24 20:30:52 +00:00

rigid-alias-bound-is-not-inherent.next.stderr

Make sure to treat only param where clauses as inherent

2025-08-24 20:30:52 +00:00

rigid-alias-bound-is-not-inherent.rs

Make sure to treat only param where clauses as inherent

2025-08-24 20:30:52 +00:00

self-type-is-sup-no-eq.rs

Use sup instead of eq when unifying self type

2024-04-21 20:10:12 -04:00

shadowed-intrinsic-method-deref.fixed

Detect inherent method behind deref being shadowed by trait method

2026-03-10 23:24:27 +00:00

shadowed-intrinsic-method-deref.rs

Detect inherent method behind deref being shadowed by trait method

2026-03-10 23:24:27 +00:00

shadowed-intrinsic-method-deref.stderr

Detect inherent method behind deref being shadowed by trait method

2026-03-10 23:24:27 +00:00

suggest-convert-ptr-to-ref.rs

rework ptr-to-ref conversion suggestion for method calls

2024-04-10 18:51:09 +02:00

suggest-convert-ptr-to-ref.stderr

Implement DesugaringKind::FormatLiteral

2025-06-22 10:58:25 +02:00

suggest-method-on-call-for-ambig-receiver.rs

Don't continue probing for method if in suggestion and autoderef hits ambiguity

2024-05-23 19:42:10 -04:00

suggest-method-on-call-for-ambig-receiver.stderr

Don't continue probing for method if in suggestion and autoderef hits ambiguity

2024-05-23 19:42:10 -04:00

suggest-method-on-call-with-macro-rcvr.rs

Adjust spans correctly for fn -> method suggestion

2023-07-27 16:50:28 +00:00

suggest-method-on-call-with-macro-rcvr.stderr

Show number in error message even for one error

2023-11-24 19:15:52 +01:00

trait-method-resolution-7575.rs

Add test batch 2

2025-08-27 15:06:05 -04:00

trait-method-resolution-7575.stderr

Add test batch 2

2025-08-27 15:06:05 -04:00

trait-method-resolution-over-inherent-22684.rs

Rehome tests/ui/issues/ tests [3/?]

2025-08-04 16:43:53 -04:00

trait-method-resolution-over-inherent-22684.stderr

Rehome tests/ui/issues/ tests [3/?]

2025-08-04 16:43:53 -04:00

tuple-suggestions-issue-142488.rs

add regression test for issue 142488

2025-08-22 20:42:25 +00:00

tuple-suggestions-issue-142488.stderr

add regression test for issue 142488

2025-08-22 20:42:25 +00:00

untrimmed-path-type.rs

Avoid extra path trimming in method not found error

2025-05-24 23:31:07 +02:00

untrimmed-path-type.stderr

Use tcx.short_string() in more diagnostics

2025-08-07 21:18:00 +00:00

vec-autoderef-autoref.rs

cleaned up some tests

2025-05-31 19:49:19 +05:00

vec-autoderef-autoref.stderr

cleaned up some tests

2025-05-31 19:49:19 +05:00

wrong-ambig-message.rs

fix: fix issue 143740, Wrong messages from compiler confusing methods with the same name from different traits

2025-07-17 19:26:39 +08:00

wrong-ambig-message.stderr

fix: fix issue 143740, Wrong messages from compiler confusing methods with the same name from different traits

2025-07-17 19:26:39 +08:00