From 1635b8ab8aea71f00783e8e4f18318a01a46b7e3 Mon Sep 17 00:00:00 2001
From: Rob Rix <rob.rix@github.com>
Date: Thu, 1 Oct 2015 09:46:02 -0400
Subject: [PATCH] Info is AlgebraicHashable.

---
 prototype/Doubt/Info.swift | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/prototype/Doubt/Info.swift b/prototype/Doubt/Info.swift
index cc9dc46a7..e6b6ab907 100644
--- a/prototype/Doubt/Info.swift
+++ b/prototype/Doubt/Info.swift
@@ -1,4 +1,4 @@
-public enum Info: Equatable {
+public enum Info: AlgebraicHashable {
 	case Literal(String, Set<Category>)
 
 	public var categories: Set<Category> {
@@ -7,6 +7,13 @@ public enum Info: Equatable {
 			return c
 		}
 	}
+
+	public var hash: Hash {
+		switch self {
+		case let .Literal(source, categories):
+			return Hash("Literal", Hash(source), Hash(categories))
+		}
+	}
 }