| // Copyright 2014 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 unboxed closures in contexts with free type parameters |
| // monomorphize correctly (issue #16791) |
| |
| fn main(){ |
| fn bar<'a, T:Clone+'a> (t: T) -> Box<FnMut()->T + 'a> { |
| Box::new(move || t.clone()) |
| } |
| |
| let mut f = bar(42_u32); |
| assert_eq!(f(), 42); |
| |
| let mut f = bar("forty-two"); |
| assert_eq!(f(), "forty-two"); |
| |
| let x = 42_u32; |
| let mut f = bar(&x); |
| assert_eq!(f(), &x); |
| |
| #[derive(Clone, Copy, Debug, PartialEq)] |
| struct Foo(usize, &'static str); |
| |
| let x = Foo(42, "forty-two"); |
| let mut f = bar(x); |
| assert_eq!(f(), x); |
| } |