From 0b84810cbf71d45f913e3e33a7fa155f0429ea14 Mon Sep 17 00:00:00 2001
From: Maxim Shafirov <max@jetbrains.com>
Date: Wed, 30 Mar 2011 14:07:53 +0400
Subject: [PATCH] Handle incomplete macrocall gracefully, attempt to restore
 lexer state.

---
 .../src/com/intellij/lexer/LookAheadLexer.java        | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/platform/platform-api/src/com/intellij/lexer/LookAheadLexer.java b/platform/platform-api/src/com/intellij/lexer/LookAheadLexer.java
index 21deb0cd18c4..4c70406b5941 100644
--- a/platform/platform-api/src/com/intellij/lexer/LookAheadLexer.java
+++ b/platform/platform-api/src/com/intellij/lexer/LookAheadLexer.java
@@ -75,6 +75,17 @@ public abstract class LookAheadLexer extends LexerBase{
     return myBaseLexer.getBufferEnd();
   }
 
+  protected int getCacheSize() {
+    return myTypeCache.size();
+  }
+
+  protected void resetCacheSize(int size) {
+    while (myTypeCache.size() > size) {
+      myTypeCache.removeLast();
+      myEndOffsetCache.removeLast();
+    }
+  }
+
   public int getState() {
     int offset = myTokenStart - myLastOffset;
     return myLastState | (offset << 16);