| // 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. |
| |
| #![feature(specialization)] |
| |
| // Regression test for #52050: when inserting the blanket impl `I` |
| // into the tree, we had to replace the child node for `Foo`, which |
| // led to the struture of the tree being messed up. |
| |
| use std::iter::Iterator; |
| |
| trait IntoPyDictPointer { } |
| |
| struct Foo { } |
| |
| impl Iterator for Foo { |
| type Item = (); |
| fn next(&mut self) -> Option<()> { |
| None |
| } |
| } |
| |
| impl IntoPyDictPointer for Foo { } |
| |
| impl<I> IntoPyDictPointer for I |
| where |
| I: Iterator, |
| { |
| } |
| |
| impl IntoPyDictPointer for () //~ ERROR conflicting implementations |
| { |
| } |
| |
| fn main() { } |