| // 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. |
| |
| // run-pass |
| #![allow(dead_code)] |
| #![allow(unused_variables)] |
| // Test explicit coercions from a fn item type to a fn pointer type. |
| |
| |
| fn foo(x: isize) -> isize { x * 2 } |
| fn bar(x: isize) -> isize { x * 4 } |
| type IntMap = fn(isize) -> isize; |
| |
| fn eq<T>(x: T, y: T) { } |
| |
| static TEST: Option<IntMap> = Some(foo as IntMap); |
| |
| fn main() { |
| let f = foo as IntMap; |
| |
| let f = if true { foo as IntMap } else { bar as IntMap }; |
| assert_eq!(f(4), 8); |
| |
| eq(foo as IntMap, bar as IntMap); |
| } |