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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.
// Check that a trait with by-value self is considered object-safe.
#![feature(rustc_attrs)]
#![allow(dead_code)]
#![allow(trivial_casts)]
trait Bar {
fn bar(self);
}
trait Baz {
fn baz(self: Self);
}
trait Quux {
// Legal because of the where clause:
fn baz(self: Self) where Self : Sized;
}
fn make_bar<T:Bar>(t: &T) -> &Bar {
t // legal
}
fn make_bar_explicit<T:Bar>(t: &T) -> &Bar {
t as &Bar // legal
}
fn make_baz<T:Baz>(t: &T) -> &Baz {
t // legal
}
fn make_baz_explicit<T:Baz>(t: &T) -> &Baz {
t as &Baz // legal
}
fn make_quux<T:Quux>(t: &T) -> &Quux {
t
}
fn make_quux_explicit<T:Quux>(t: &T) -> &Quux {
t as &Quux
}
#[rustc_error]
fn main() { //~ ERROR compilation successful
}
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