| // Copyright 2017 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 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Test that `for` loops don't introduce artificial |
| // constraints on the type of the binding (`i`). |
| // Subtle changes in the desugaring can cause the |
| // type of elements in the vector to (incorrectly) |
| // fallback to `!` or `()`. |
| |
| fn main() { |
| for i in Vec::new() { } //~ ERROR type annotations needed |
| } |
