rust/compiler/rustc_middle
bors 1d52972dd8 Auto merge of #125778 - estebank:issue-67100, r=compiler-errors
Use parenthetical notation for `Fn` traits

Always use the `Fn(T) -> R` format when printing closure traits instead of `Fn<(T,), Output = R>`.

Address #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) {
  |                              ++++++
```
2024-06-03 08:14:03 +00:00
..
src Auto merge of #125778 - estebank:issue-67100, r=compiler-errors 2024-06-03 08:14:03 +00:00
Cargo.toml Uplift GenericArgKind, CanonicalVarValues, QueryInput 2024-05-18 16:21:43 -04:00
messages.ftl Port DeprecatedMacro to diag structs 2024-05-21 20:16:39 +00:00
README.md

For more information about how rustc works, see the rustc dev guide.