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Parameterized Patch hashing.

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This commit is contained in:
Rob Rix 2015-10-02 16:50:59 -04:00
parent ca6392e636
commit ae7f30e922
1 changed files with 12 additions and 0 deletions
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12
prototype/Doubt/Patch.swift
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@ -19,3 +19,15 @@ extension Patch {
&& Optional.equals(Fix.equals(param))(left.state.after, right.state.after)
}
}
// MARK: - Hashing
extension Patch {
public func hash(param: A -> Hash) -> Hash {
return Hash.Ordered([
state.before.map { $0.hash(param) } ?? Hash.Empty,
state.after.map { $0.hash(param) } ?? Hash.Empty
])
}
}