blob: 2a894c57b8df19c5a83d9b131f7d0de6ffb90d06 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
// 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() {}
|
