rust/src/test/compile-fail/wf-trait-superbound.rs

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// 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.
// Test that we check supertrait bounds for WFedness.
#![feature(associated_type_defaults)]
#![feature(rustc_attrs)]
#![allow(dead_code)]
trait ExtraCopy<T:Copy> { }
trait SomeTrait<T>: ExtraCopy<T> { //~ WARN E0277
}
#[rustc_error]
fn main() { } //~ ERROR compilation successful