rust/tests/ui/expr/malformed_closure
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
..
block_instead_of_closure_in_arg.rs Pretty print Fn traits in rustc_on_unimplemented 2023-11-02 20:57:05 +00:00
block_instead_of_closure_in_arg.stderr Use parenthetical notation for Fn traits 2024-05-29 22:26:54 +00:00
missing_block_in_fn_call.fixed [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
missing_block_in_fn_call.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
missing_block_in_fn_call.stderr Detect ruby-style closure in parser 2023-10-12 21:50:18 +00:00
missing_block_in_let_binding.rs Detect ruby-style closure in parser 2023-10-12 21:50:18 +00:00
missing_block_in_let_binding.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00
missing_braces_around_block.fixed [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
missing_braces_around_block.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
missing_braces_around_block.stderr
ruby_style_closure_parse_error.fixed [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
ruby_style_closure_parse_error.rs [AUTO-GENERATED] Migrate ui tests from // to //@ directives 2024-02-16 20:02:50 +00:00
ruby_style_closure_parse_error.stderr Detect ruby-style closure in parser 2023-10-12 21:50:18 +00:00
ruby_style_closure_successful_parse.rs Pretty print Fn traits in rustc_on_unimplemented 2023-11-02 20:57:05 +00:00
ruby_style_closure_successful_parse.stderr Use parenthetical notation for Fn traits 2024-05-29 22:26:54 +00:00
ruby_style_closure.rs
ruby_style_closure.stderr Show number in error message even for one error 2023-11-24 19:15:52 +01:00