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Write cost as a func.

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This commit is contained in:
Rob Rix 2015-10-06 11:55:15 -04:00
parent cc6627bb52
commit 84a1122ed7
1 changed files with 2 additions and 2 deletions
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4
prototype/Doubt/Algorithm.swift
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@ -105,8 +105,8 @@ public enum FreeAlgorithm<A, B> {
if a.isEmpty { return f(b.map { Diff.Pure(Patch.Insert($0)) }).evaluate(equals) }
if b.isEmpty { return f(a.map { Diff.Pure(Patch.Delete($0)) }).evaluate(equals) }
let cost: Diff -> Int = { diff in
diff.map(const(1)).iterate { syntax in
func cost(diff: Diff) -> Int {
return diff.map(const(1)).iterate { syntax in
switch syntax {
case .Leaf:
return 0