| // Copyright 2015 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. |
| |
| // This test ensures that vec.into_iter does not overconstrain element lifetime. |
| |
| pub fn main() { |
| original_report(); |
| revision_1(); |
| revision_2(); |
| } |
| |
| fn original_report() { |
| drop(vec![&()].into_iter()) |
| } |
| |
| fn revision_1() { |
| // below is what above `vec!` expands into at time of this writing. |
| drop(<[_]>::into_vec(::std::boxed::Box::new([&()])).into_iter()) |
| } |
| |
| fn revision_2() { |
| drop((match (Vec::new(), &()) { (mut v, b) => { v.push(b); v } }).into_iter()) |
| } |
