e6bd6c2044
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) { | ++++++ ```
12 lines
403 B
Rust
12 lines
403 B
Rust
fn strip_lf(s: &str) -> &str {
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s.strip_suffix(b'\n').unwrap_or(s)
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//~^ ERROR expected a `FnMut(char)` closure, found `u8`
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//~| NOTE expected an `FnMut(char)` closure, found `u8`
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//~| HELP the trait `FnMut(char)` is not implemented for `u8`
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//~| HELP the following other types implement trait `Pattern<'a>`:
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//~| NOTE required for `u8` to implement `Pattern<'_>`
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}
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fn main() {}
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