From b05d71903ab940abd27a537d0ef6b52d78b271d1 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Wed, 27 May 2015 15:13:36 +0200
Subject: [PATCH] SemCacheChunk micro-optimization

---
 .../lang-impl/src/com/intellij/semantic/SemServiceImpl.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/platform/lang-impl/src/com/intellij/semantic/SemServiceImpl.java b/platform/lang-impl/src/com/intellij/semantic/SemServiceImpl.java
index 0d966e87477a..4c8ba6c67ba4 100644
--- a/platform/lang-impl/src/com/intellij/semantic/SemServiceImpl.java
+++ b/platform/lang-impl/src/com/intellij/semantic/SemServiceImpl.java
@@ -278,6 +278,10 @@ public class SemServiceImpl extends SemService{
       map.put(key.getUniqueId(), elements);
     }
 
+    @Override
+    public int hashCode() {
+      return 0; // ConcurrentWeakKeySoftValueHashMap.SoftValue requires hashCode, and this is faster than identityHashCode
+    }
   }
 
 }