rust/src/test/compile-fail/associated-item-duplicate-names.rs

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// Copyright 2015 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 for issue #23969
#![feature(associated_consts)]
trait Foo {
type Ty;
const BAR: u32;
}
impl Foo for () {
type Ty = ();
type Ty = usize; //~ ERROR duplicate associated type
const BAR: u32 = 7;
const BAR: u32 = 8; //~ ERROR duplicate associated constant
}
fn main() {
let _: <() as Foo>::Ty = ();
let _: u32 = <() as Foo>::BAR;
}