rust/tests/ui/unboxed-closures/unboxed-closures-call-sugar-object-autoderef.rs
2024-02-16 20:02:50 +00:00

14 lines
312 B
Rust

//@ run-pass
// Test that the call operator autoderefs when calling to an object type.
fn make_adder(x: isize) -> Box<dyn FnMut(isize)->isize + 'static> {
Box::new(move |y| { x + y })
}
pub fn main() {
let mut adder = make_adder(3);
let z = adder(2);
println!("{}", z);
assert_eq!(z, 5);
}