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33 lines
629 B
Rust
33 lines
629 B
Rust
#![feature(specialization)] //~ WARN the feature `specialization` is incomplete
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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 structure 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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