30 lines
712 B
Rust
30 lines
712 B
Rust
// Copyright 2015 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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trait Foo {
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const NUM: usize;
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}
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impl Foo for i32 {
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const NUM: usize = 1;
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}
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const FOO: usize = <i32 as Foo>::NUM;
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fn main() {
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assert_eq!(1, FOO);
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match 1 {
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<i32 as Foo>::NUM => {},
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_ => assert!(false)
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}
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}
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