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Algebraic hashing over cofrees of Hashable types.

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This commit is contained in:
Rob Rix 2015-10-14 10:57:25 -04:00
parent db57734586
commit e70cbe4235
1 changed files with 6 additions and 0 deletions
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6
prototype/Doubt/Cofree.swift
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@ -87,5 +87,11 @@ extension Cofree {
} }
} }
extension Cofree where A: Hashable, B: Hashable {
public var hash: Hash {
return hash(annotation: Hash.init, leaf: Hash.init)
}
}
import Prelude import Prelude