rust/tests/ui/unboxed-closures/unboxed-closures-infer-fn-once-move-from-projection.rs
2023-01-11 09:32:08 +00:00

17 lines
435 B
Rust

#![allow(unused)]
fn foo<F>(f: F)
where F: Fn()
{
}
fn main() {
// Test that this closure is inferred to `FnOnce` because it moves
// from `y.0`. This affects the error output (the error is that
// the closure implements `FnOnce`, not that it moves from inside
// a `Fn` closure.)
let y = (vec![1, 2, 3], 0);
let c = || drop(y.0); //~ ERROR expected a closure that implements the `Fn` trait
foo(c);
}