rust/src/test/ui/trait-alias-fail.rs

28 lines
1007 B
Rust

// Copyright 2017 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.
// gate-test-trait_alias
trait Alias1<T> = Default where T: Clone; // ok
//~^ERROR trait aliases are not yet fully implemented
trait Alias2<T: Clone = ()> = Default;
//~^ERROR type parameters on the left side of a trait alias cannot be bounded
//~^^ERROR type parameters on the left side of a trait alias cannot have defaults
//~^^^ERROR trait aliases are not yet fully implemented
impl Alias1 { //~ERROR expected type, found trait alias
}
impl Alias1 for () { //~ERROR expected trait, found trait alias
}
fn main() {}