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Remove Syntax hashing.

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This commit is contained in:
Rob Rix 2015-10-15 09:43:51 -04:00
parent 1cbc04100d
commit f30d2d609a
1 changed files with 0 additions and 22 deletions
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22
prototype/Doubt/Syntax.swift
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@ -71,28 +71,6 @@ public func == <F: Equatable, A: Equatable> (left: Syntax<F, A>, right: Syntax<F
}
// MARK: - Hashing
extension Syntax {
public func hash(ifLeaf ifLeaf: A -> Hash, ifRecur: Recur -> Hash) -> Hash {
switch self {
case let .Leaf(n):
return Hash("Leaf", ifLeaf(n))
case let .Indexed(x):
return Hash("Indexed", .Ordered(x.map(ifRecur)))
case let .Keyed(d):
return Hash("Keyed", .Ordered(d.keys.sort().map { Hash($0, ifRecur(d[$0]!)) }))
}
}
}
extension Syntax where Recur: Hashable, A: Hashable {
public var hash: Hash {
return hash(ifLeaf: Hash.init, ifRecur: Hash.init)
}
}
// MARK: - JSON
extension Syntax {