42 lines
1 KiB
Rust
42 lines
1 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(specialization)]
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// Regression test for #52050: when inserting the blanket impl `I`
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// into the tree, we had to replace the child node for `Foo`, which
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// led to the struture of the tree being messed up.
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use std::iter::Iterator;
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trait IntoPyDictPointer { }
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struct Foo { }
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impl Iterator for Foo {
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type Item = ();
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fn next(&mut self) -> Option<()> {
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None
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}
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}
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impl IntoPyDictPointer for Foo { }
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impl<I> IntoPyDictPointer for I
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where
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I: Iterator,
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{
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}
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impl IntoPyDictPointer for () //~ ERROR conflicting implementations
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{
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}
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fn main() { }
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