src/test/compile-fail/coherence-overlapping-inherent-impl-trait.rs


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// Copyright 2016 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.

#![allow(dead_code)]
#![deny(overlapping_inherent_impls)]

trait C {}
impl C { fn f() {} } //~ ERROR duplicate definitions with name `f`
//~^ WARN: this was previously accepted
impl C { fn f() {} }
fn main() { }