| // Copyright 2016 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(associated_type_defaults)] |
| |
| struct S<T = u8>(T); |
| trait Tr<T = u8> { |
| type A = (); |
| } |
| |
| impl Tr<Self> for S {} // OK |
| impl<T: Tr<Self>> Tr<T> for S {} // OK |
| impl Tr for S where Self: Copy {} // OK |
| impl Tr for S where S<Self>: Copy {} // OK |
| impl Tr for S where Self::A: Copy {} // OK |
| |
| impl Tr for Self {} //~ ERROR cycle detected |
| impl Tr for S<Self> {} //~ ERROR cycle detected |
| impl Self {} //~ ERROR cycle detected |
| impl S<Self> {} //~ ERROR cycle detected |
| impl Tr<Self::A> for S {} //~ ERROR cycle detected |
| |
| fn main() {} |
