40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
// Copyright 2012-2014 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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// pretty-expanded FIXME #23616
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type compare<T> = extern "Rust" fn(T, T) -> bool;
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fn test_generic<T:Clone>(expected: T, eq: compare<T>) {
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let actual: T = match true { true => { expected.clone() }, _ => panic!("wat") };
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assert!((eq(expected, actual)));
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}
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fn test_bool() {
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fn compare_bool(b1: bool, b2: bool) -> bool { return b1 == b2; }
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test_generic::<bool>(true, compare_bool);
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}
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#[derive(Clone)]
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struct Pair {
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a: isize,
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b: isize,
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}
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fn test_rec() {
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fn compare_rec(t1: Pair, t2: Pair) -> bool {
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t1.a == t2.a && t1.b == t2.b
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}
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test_generic::<Pair>(Pair {a: 1, b: 2}, compare_rec);
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}
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pub fn main() { test_bool(); test_rec(); }
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