37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Test that unboxed closures in contexts with free type parameters
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// monomorphize correctly (issue #16791)
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#![feature(unboxed_closures)]
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fn main(){
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fn bar<'a, T:'a> (t: T) -> Box<FnOnce<(),T> + 'a> {
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box move |:| t
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}
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let f = bar(42u);
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assert_eq!(f.call_once(()), 42);
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let f = bar("forty-two");
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assert_eq!(f.call_once(()), "forty-two");
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let x = 42u;
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let f = bar(&x);
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assert_eq!(f.call_once(()), &x);
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#[deriving(Show, PartialEq)]
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struct Foo(uint, &'static str);
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let x = Foo(42, "forty-two");
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let f = bar(x);
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assert_eq!(f.call_once(()), x);
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}
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