| // Copyright 2015 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 projections don't count as constraining type parameters. |
| |
| struct S<T>(T); |
| |
| trait Tr { type Assoc; fn test(); } |
| |
| impl<T: Tr> S<T::Assoc> { |
| //~^ ERROR the type parameter `T` is not constrained |
| fn foo(self, _: T) { |
| T::test(); |
| } |
| } |
| |
| trait Trait1<T> { type Bar; } |
| trait Trait2<'x> { type Foo; } |
| |
| impl<'a,T: Trait2<'a>> Trait1<<T as Trait2<'a>>::Foo> for T { |
| //~^ ERROR the lifetime parameter `'a` is not constrained |
| type Bar = &'a (); |
| } |
| |
| fn main() {} |
