diff --git a/src/test/run-pass/closure_to_fn_coercion-expected-types.rs b/src/test/run-pass/closure_to_fn_coercion-expected-types.rs new file mode 100644 index 000000000000..7d951c655ca3 --- /dev/null +++ b/src/test/run-pass/closure_to_fn_coercion-expected-types.rs @@ -0,0 +1,18 @@ +// Copyright 2012 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. +// +// Ensure that we deduce expected argument types when a `fn()` type is expected (#41755) + +#![feature(closure_to_fn_coercion)] +fn foo(f: fn(Vec) -> usize) { } + +fn main() { + foo(|x| x.len()) +}