| // 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. |
| |
| #![feature(trait_alias)] |
| |
| trait SimpleAlias = Default; //~ERROR E0645 |
| trait GenericAlias<T> = Iterator<Item=T>; //~ERROR E0645 |
| trait Partial<T> = IntoIterator<Item=T>; //~ERROR E0645 |
| |
| trait Things<T> {} |
| trait Romeo {} |
| struct The<T>(T); |
| struct Fore<T>(T); |
| impl<T, U> Things<T> for The<U> {} |
| impl<T> Romeo for Fore<T> {} |
| |
| trait WithWhere<Art, Thou> = Romeo + Romeo where Fore<(Art, Thou)>: Romeo; //~ERROR E0645 |
| trait BareWhere<Wild, Are> = where The<Wild>: Things<Are>; //~ERROR E0645 |
| |
| trait CD = Clone + Default; //~ERROR E0645 |
| |
| fn foo<T: CD>() -> (T, T) { |
| let one = T::default(); |
| let two = one.clone(); |
| (one, two) |
| } |
| |
| fn main() { |
| let both = foo(); |
| assert_eq!(both.0, 0); |
| assert_eq!(both.1, 0); |
| let both: (i32, i32) = foo(); |
| assert_eq!(both.0, 0); |
| assert_eq!(both.1, 0); |
| } |
| |
