rust/tests/ui/unboxed-closures/unboxed-closures-call-sugar-autoderef.rs
2023-01-11 09:32:08 +00:00

16 lines
307 B
Rust

// run-pass
// Test that the call operator autoderefs when calling a bounded type parameter.
use std::ops::FnMut;
fn call_with_2<F>(x: &mut F) -> isize
where F : FnMut(isize) -> isize
{
x(2) // look ma, no `*`
}
pub fn main() {
let z = call_with_2(&mut |x| x - 22);
assert_eq!(z, -20);
}