rust/tests/ui/closure-expected-type/expect-infer-var-appearing-twice.rs
2023-01-11 09:32:08 +00:00

26 lines
443 B
Rust

fn with_closure<F, A>(_: F)
where F: FnOnce(A, A)
{
}
fn a() {
with_closure(|x: u32, y| {
// We deduce type of `y` from `x`.
});
}
fn b() {
// Here we take the supplied types, resulting in an error later on.
with_closure(|x: u32, y: i32| {
//~^ ERROR type mismatch in closure arguments
});
}
fn c() {
with_closure(|x, y: i32| {
// We deduce type of `x` from `y`.
});
}
fn main() { }