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Add a Replace constructor to Free when used as a Diff.

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This commit is contained in:
Rob Rix 2015-10-15 11:10:16 -04:00
parent e635668719
commit 8366dc752a
1 changed files with 5 additions and 0 deletions
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5
prototype/Doubt/Free.swift
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@ -121,6 +121,11 @@ extension Free where B: PatchConvertible, B.Element == Cofree<A, ()> {
public var inverse: Free {
return map { B(patch: $0.patch.inverse) }
}
public static func Replace(before: B.Element, _ after: B.Element) -> Free {
return .Pure(B(patch: .Replace(before, after)))
}
}