From f30d2d609a08faaa82ca7cc205d001efa911288d Mon Sep 17 00:00:00 2001
From: Rob Rix <rob.rix@github.com>
Date: Thu, 15 Oct 2015 09:43:51 -0400
Subject: [PATCH] Remove Syntax hashing.

---
 prototype/Doubt/Syntax.swift | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/prototype/Doubt/Syntax.swift b/prototype/Doubt/Syntax.swift
index 2a7c47924..71718537f 100644
--- a/prototype/Doubt/Syntax.swift
+++ b/prototype/Doubt/Syntax.swift
@@ -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 {