rust/tests/ui/issues/issue-17897.rs

//@ run-pass
fn action(mut cb: Box<dyn FnMut(usize) -> usize>) -> usize {
    cb(1)
}

pub fn main() {
    println!("num: {}", action(Box::new(move |u| u)));
}
[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives 2024-02-16 20:02:50 +00:00			`//@ run-pass`
Update run-pass test suite to use dyn 2019-05-28 14:47:21 -04:00			`fn action(mut cb: Box<dyn FnMut(usize) -> usize>) -> usize {`
Remove `Thunk` struct and `Invoke` trait; change `Thunk` to be an alias for `Box<FnBox()>`. I found the alias was still handy because it is shorter than the fully written type. This is a [breaking-change]: convert code using `Invoke` to use `FnBox`, which is usually pretty straight-forward. Code using thunk mostly works if you change `Thunk::new => Box::new` and `foo.invoke(arg)` to `foo(arg)`. 2015-04-01 11:12:30 -04:00			`cb(1)`
Add tests for E-needstest issues 2014-12-07 15:22:06 +00:00			`}`

			`pub fn main() {`
Remove `Thunk` struct and `Invoke` trait; change `Thunk` to be an alias for `Box<FnBox()>`. I found the alias was still handy because it is shorter than the fully written type. This is a [breaking-change]: convert code using `Invoke` to use `FnBox`, which is usually pretty straight-forward. Code using thunk mostly works if you change `Thunk::new => Box::new` and `foo.invoke(arg)` to `foo(arg)`. 2015-04-01 11:12:30 -04:00			`println!("num: {}", action(Box::new(move \|u\| u)));`
Add tests for E-needstest issues 2014-12-07 15:22:06 +00:00			`}`