From 63ff68d3baffe76d5157e07bbfd310fdb5ad3628 Mon Sep 17 00:00:00 2001
From: Alex Miller <alex.miller@cognitect.com>
Date: Thu, 20 Feb 2014 21:21:38 -0600
Subject: [PATCH] CLJ-1355 - restore cached hashCode for Symbol and (uncached)
 hashCode for Keyword

---
 src/jvm/clojure/lang/Keyword.java | 8 ++++----
 src/jvm/clojure/lang/Symbol.java  | 9 ++++++---
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/jvm/clojure/lang/Keyword.java b/src/jvm/clojure/lang/Keyword.java
index 9c2bf38fac..7b71d44c3e 100644
--- a/src/jvm/clojure/lang/Keyword.java
+++ b/src/jvm/clojure/lang/Keyword.java
@@ -26,7 +26,7 @@ public class Keyword implements IFn, Comparable, Named, Serializable, IHashEq {
 private static ConcurrentHashMap<Symbol, Reference<Keyword>> table = new ConcurrentHashMap();
 static final ReferenceQueue rq = new ReferenceQueue();
 public final Symbol sym;
-final int hash;
+final int hasheq;
 String _str;
 
 public static Keyword intern(Symbol sym){
@@ -55,7 +55,7 @@ public static Keyword intern(String nsname){
 
 private Keyword(Symbol sym){
 	this.sym = sym;
-	hash = sym.hashCode() + 0x9e3779b9;
+	hasheq = sym.hasheq() + 0x9e3779b9;
 }
 
 public static Keyword find(Symbol sym){
@@ -75,11 +75,11 @@ public static Keyword find(String nsname){
 }
 
 public final int hashCode(){
-	return hash;
+	return sym.hashCode() + 0x9e3779b9;
 }
 
 public int hasheq() {
-	return hash;
+	return hasheq;
 }
 
 public String toString(){
diff --git a/src/jvm/clojure/lang/Symbol.java b/src/jvm/clojure/lang/Symbol.java
index 719a32a488..628b1334d5 100644
--- a/src/jvm/clojure/lang/Symbol.java
+++ b/src/jvm/clojure/lang/Symbol.java
@@ -21,6 +21,7 @@ public class Symbol extends AFn implements IObj, Comparable, Named, Serializable
 final String ns;
 final String name;
 final int hash;
+final int hasheq;
 final IPersistentMap _meta;
 String _str;
 
@@ -67,7 +68,8 @@ static public Symbol intern(String nsname){
 private Symbol(String ns_interned, String name_interned){
 	this.name = name_interned;
 	this.ns = ns_interned;
-	this.hash = Util.hashCombine(Util.hasheq(name),Util.hasheq(ns));
+	this.hash = Util.hashCombine(name.hashCode(), Util.hash(ns));
+	this.hasheq = Util.hashCombine(Util.hasheq(name),Util.hasheq(ns));
 	this._meta = null;
 }
 
@@ -88,7 +90,7 @@ public int hashCode(){
 }
 
 public int hasheq() {
-	return hash;
+	return hasheq;
 }
 
 public IObj withMeta(IPersistentMap meta){
@@ -99,7 +101,8 @@ private Symbol(IPersistentMap meta, String ns, String name){
 	this.name = name;
 	this.ns = ns;
 	this._meta = meta;
-	this.hash = Util.hashCombine(Util.hasheq(name),Util.hasheq(ns));
+	this.hash = Util.hashCombine(name.hashCode(), Util.hash(ns));
+	this.hasheq = Util.hashCombine(Util.hasheq(name),Util.hasheq(ns));
 }
 
 public int compareTo(Object o){