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rust/tests/ui/unboxed-closures
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Esteban Küber e6bd6c2044 Use parenthetical notation for Fn traits 
Always use the `Fn(T) -> R` format when printing closure traits instead of `Fn<(T,), Output = R>`.

Fix #67100:

```
error[E0277]: expected a `Fn()` closure, found `F`
 --> file.rs:6:13
  |
6 |     call_fn(f)
  |     ------- ^ expected an `Fn()` closure, found `F`
  |     |
  |     required by a bound introduced by this call
  |
  = note: wrap the `F` in a closure with no arguments: `|| { /* code */ }`
note: required by a bound in `call_fn`
 --> file.rs:1:15
  |
1 | fn call_fn<F: Fn() -> ()>(f: &F) {
  |               ^^^^^^^^^^ required by this bound in `call_fn`
help: consider further restricting this bound
  |
5 | fn call_any<F: std::any::Any + Fn()>(f: &F) {
  |                              ++++++
```
2024-05-29 22:26:54 +00:00
..
auxiliary
issue-18652.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
issue-18661.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
issue-30906.rs
issue-30906.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
issue-53448.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
non-tupled-arg-mismatch.rs Continue compilation after check_mod_type_wf errors 2024-02-14 11:00:30 +00:00
non-tupled-arg-mismatch.stderr Continue compilation after check_mod_type_wf errors 2024-02-14 11:00:30 +00:00
non-tupled-call.rs
non-tupled-call.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
type-id-higher-rank.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closure-feature-gate.rs
unboxed-closure-feature-gate.stderr Bless tests 2024-01-13 12:46:58 -05:00
unboxed-closure-illegal-move.rs
unboxed-closure-illegal-move.stderr Better account for more cases involving closures 2024-04-12 04:46:31 +00:00
unboxed-closure-immutable-capture.rs
unboxed-closure-immutable-capture.stderr
unboxed-closure-no-cyclic-sig.rs s/generator/coroutine/ 2023-10-20 21:14:01 +00:00
unboxed-closure-no-cyclic-sig.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closure-region.rs
unboxed-closure-region.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closure-sugar-default.rs
unboxed-closure-sugar-default.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closure-sugar-equiv.rs
unboxed-closure-sugar-equiv.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closure-sugar-lifetime-elision.rs
unboxed-closure-sugar-lifetime-elision.stderr tests: remove some trailing ws 2024-04-27 10:54:31 +03:00
unboxed-closure-sugar-not-used-on-fn.rs
unboxed-closure-sugar-not-used-on-fn.stderr Bless tests 2024-01-13 12:46:58 -05:00
unboxed-closure-sugar-region.rs make type_flags(ReError) & HAS_ERROR 2024-03-20 17:29:58 +00:00
unboxed-closure-sugar-region.stderr make type_flags(ReError) & HAS_ERROR 2024-03-20 17:29:58 +00:00
unboxed-closure-sugar-used-on-struct-1.rs
unboxed-closure-sugar-used-on-struct-1.stderr
unboxed-closure-sugar-used-on-struct-3.rs
unboxed-closure-sugar-used-on-struct-3.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closure-sugar-used-on-struct.rs
unboxed-closure-sugar-used-on-struct.stderr
unboxed-closure-sugar-wrong-number-number-type-parameters-1.rs
unboxed-closure-sugar-wrong-number-number-type-parameters-1.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closure-sugar-wrong-number-number-type-parameters-3.rs
unboxed-closure-sugar-wrong-number-number-type-parameters-3.stderr
unboxed-closure-sugar-wrong-number-number-type-parameters.rs Avoid silencing relevant follow-up errors 2024-01-09 21:08:16 +00:00
unboxed-closure-sugar-wrong-number-number-type-parameters.stderr Avoid silencing relevant follow-up errors 2024-01-09 21:08:16 +00:00
unboxed-closure-sugar-wrong-trait.rs
unboxed-closure-sugar-wrong-trait.stderr
unboxed-closures-all-traits.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-blanket-fn-mut.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-blanket-fn.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-borrow-conflict.rs
unboxed-closures-borrow-conflict.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-boxed.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-by-ref.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-call-fn-autoderef.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-call-sugar-autoderef.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-call-sugar-object-autoderef.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-call-sugar-object.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-counter-not-moved.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-counter-not-moved.stderr
unboxed-closures-cross-crate.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-direct-sugary-call.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-drop.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-extern-fn-hr.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-extern-fn.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-failed-recursive-fn-1.rs
unboxed-closures-failed-recursive-fn-1.stderr Modify find_expr from Span to better account for closures 2024-04-24 22:21:13 +00:00
unboxed-closures-failed-recursive-fn-2.rs
unboxed-closures-failed-recursive-fn-2.stderr Use fn ptr signature instead of {closure@..} in infer error 2024-04-10 00:41:27 +00:00
unboxed-closures-fn-as-fnmut-and-fnonce.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-fnmut-as-fn.rs
unboxed-closures-fnmut-as-fn.stderr Use parenthetical notation for Fn traits 2024-05-29 22:26:54 +00:00
unboxed-closures-fnmut-as-fnonce.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-generic.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-arg-types-from-expected-bound.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-arg-types-from-expected-object-type.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-arg-types-w-bound-regs-from-expected-bound.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-argument-types-two-region-pointers.rs
unboxed-closures-infer-argument-types-two-region-pointers.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-infer-explicit-call-early.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-fn-once-move-from-projection.rs
unboxed-closures-infer-fn-once-move-from-projection.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-infer-fnmut-calling-fnmut-no-mut.rs
unboxed-closures-infer-fnmut-calling-fnmut-no-mut.stderr
unboxed-closures-infer-fnmut-calling-fnmut.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-fnmut-missing-mut.rs
unboxed-closures-infer-fnmut-missing-mut.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-infer-fnmut-move-missing-mut.rs
unboxed-closures-infer-fnmut-move-missing-mut.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-infer-fnmut-move.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-fnmut.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-fnonce-call-twice.rs
unboxed-closures-infer-fnonce-call-twice.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-infer-fnonce-move-call-twice.rs
unboxed-closures-infer-fnonce-move-call-twice.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-infer-fnonce-move.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-fnonce.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-kind.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-recursive-fn.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-infer-upvar.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-manual-impl.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-monomorphization.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-move-from-projection-issue-30046.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-move-mutable.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-move-mutable.stderr
unboxed-closures-move-some-upvars-in-by-ref-closure.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-mutate-upvar.rs
unboxed-closures-mutate-upvar.stderr
unboxed-closures-mutated-upvar-from-fn-closure.rs
unboxed-closures-mutated-upvar-from-fn-closure.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-prelude.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-recursive-fn-using-fn-mut.rs
unboxed-closures-recursive-fn-using-fn-mut.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-simple.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-single-word-env.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-static-call-fn-once.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-static-call-wrong-trait.rs
unboxed-closures-static-call-wrong-trait.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
unboxed-closures-sugar-object.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-type-mismatch-closure-from-another-scope.rs On type error involving closure, avoid ICE 2023-10-12 23:29:02 +00:00
unboxed-closures-type-mismatch-closure-from-another-scope.stderr Don't suggest deref macro since it's unstable 2024-03-21 11:42:49 -04:00
unboxed-closures-type-mismatch.rs
unboxed-closures-type-mismatch.stderr
unboxed-closures-unique-type-id.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
unboxed-closures-unsafe-extern-fn.rs
unboxed-closures-unsafe-extern-fn.stderr Use parenthetical notation for Fn traits 2024-05-29 22:26:54 +00:00
unboxed-closures-wrong-abi.rs
unboxed-closures-wrong-abi.stderr Use parenthetical notation for Fn traits 2024-05-29 22:26:54 +00:00
unboxed-closures-wrong-arg-type-extern-fn.rs
unboxed-closures-wrong-arg-type-extern-fn.stderr Use parenthetical notation for Fn traits 2024-05-29 22:26:54 +00:00
unboxed-closures-zero-args.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00