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1 | // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
11 | #![feature(rustc_attrs)] | |
12 | ||
13 | // Here we expect a coherence conflict because, even though `i32` does | |
14 | // not implement `Iterator`, we cannot rely on that negative reasoning | |
15 | // due to the orphan rules. Therefore, `A::Item` may yet turn out to | |
16 | // be `i32`. | |
17 | ||
18 | pub trait Foo<P> {} | |
19 | ||
20 | pub trait Bar { | |
21 | type Output: 'static; | |
22 | } | |
23 | ||
54a0048b | 24 | impl Foo<i32> for i32 { } |
9cc50fc6 | 25 | |
54a0048b | 26 | impl<A:Iterator> Foo<A::Item> for A { } //~ ERROR E0119 |
9cc50fc6 SL |
27 | |
28 | fn main() {} |