1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Test that `for` loops don't introduce artificial
12 // constraints on the type of the binding (`i`).
13 // Subtle changes in the desugaring can cause the
14 // type of elements in the vector to (incorrectly)
15 // fallback to `!` or `()`.
18 for i in Vec::new() { } //~ ERROR type annotations needed