43 lines
1.0 KiB
Rust
43 lines
1.0 KiB
Rust
|
// 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() { }
|