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Prefer ObjectCandidate to ImplCandidate if both apply #24056

Merged
merged 1 commit into from
Apr 6, 2015
Merged

Prefer ObjectCandidate to ImplCandidate if both apply #24056

merged 1 commit into from
Apr 6, 2015

Commits on Apr 6, 2015

  1. If we find a blanket impl for Trait but we're matching on an object 

    `Trait`, prefer the object. Also give a nice error for attempts to
manually `impl Trait for Trait`, since they will be ineffectual.

Fixes rust-lang#24015.

Fixes rust-lang#24051.
Fixes rust-lang#24037.
Fixes rust-lang#23853.
Fixes rust-lang#21942.
cc rust-lang#21756.
    @nikomatsakis
    nikomatsakis committed Apr 6, 2015
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