From 58c0a7ff2c9be5a0a00c2ac0a5543a9b6a4cd478 Mon Sep 17 00:00:00 2001
From: Rob Rix <rob.rix@github.com>
Date: Wed, 14 Oct 2015 08:59:19 -0400
Subject: [PATCH] Categories can be of any Hashable type.

---
 prototype/Doubt/Category.swift | 2 ++
 prototype/Doubt/Fix.swift      | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/prototype/Doubt/Category.swift b/prototype/Doubt/Category.swift
index ae16e3237..3fd270997 100644
--- a/prototype/Doubt/Category.swift
+++ b/prototype/Doubt/Category.swift
@@ -57,5 +57,7 @@ public func < (left: Category, right: Category) -> Bool {
 
 /// A type whose values belong to a set of categories.
 public protocol Categorizable {
+	typealias Category: Hashable
+
 	var categories: Set<Category> { get }
 }
diff --git a/prototype/Doubt/Fix.swift b/prototype/Doubt/Fix.swift
index bb5a8430a..30cd9abde 100644
--- a/prototype/Doubt/Fix.swift
+++ b/prototype/Doubt/Fix.swift
@@ -81,7 +81,7 @@ extension Fix where A: CustomJSONConvertible {
 // MARK: - Categorizable
 
 extension Fix where A: Categorizable {
-	public var categories: Set<Category> {
+	public var categories: Set<A.Category> {
 		switch self {
 		case let .In(.Leaf(a)):
 			return a.categories