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Projection types permit coherence violations #20624

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nikomatsakis opened this issue Jan 6, 2015 · 0 comments · Fixed by #20757
Closed

Projection types permit coherence violations #20624

nikomatsakis opened this issue Jan 6, 2015 · 0 comments · Fixed by #20757
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A-associated-items Area: Associated items (types, constants & functions)
Milestone
1.0 alpha

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@nikomatsakis
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See this example from @aturon, which should not compile. This is because I assumed that we could not support projection types in impls right now, but after thinking on it some more I'm not so sure, it might work -- in that case we probably just need to normalize associated types during coherence.

cc @nick29581
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A-associated-items Area: Associated items (types, constants & functions)
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Normalize associated types in impls/coherence nikomatsakis/rust
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