rust/src/test/compile-fail/kindck-inherited-copy-bound.rs

// 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 Copy bounds inherited by trait are checked.

#![feature(box_syntax)]

use std::any::Any;

trait Foo : Copy {
    fn foo(&self) {}
}

impl<T:Copy> Foo for T {
}

fn take_param<T:Foo>(foo: &T) { }

fn a() {
    let x: Box<_> = box 3;
    take_param(&x); //~ ERROR E0277
}

fn b() {
    let x: Box<_> = box 3;
    let y = &x;
    let z = &x as &Foo; //~ ERROR E0038
}

fn main() { }