From 5e9762adfb7fcb7116a1fd24da449e341f2294b5 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Tue, 1 Jul 2014 17:13:35 +0200
Subject: [PATCH] LookupOffsets.updateLookupStart: ensure offset bounds instead
 of assertions (EA-49467, EA-47632)

---
 .../com/intellij/codeInsight/lookup/impl/LookupOffsets.java  | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupOffsets.java b/platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupOffsets.java
index 28d3aff18665..fe53f1796dbd 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupOffsets.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupOffsets.java
@@ -51,10 +51,7 @@ public class LookupOffsets {
   private void updateLookupStart(int minPrefixLength) {
     int offset = getPivotOffset();
     int start = offset - minPrefixLength - myAdditionalPrefix.length() + myRemovedPrefix;
-    if (start < 0) {
-      LOG.error("Invalid start offset: o=" + offset + ", mpl=" + minPrefixLength + ", ap=" + myAdditionalPrefix + ", rp=" + myRemovedPrefix);
-      return;
-    }
+    start = Math.max(Math.min(start, myEditor.getDocument().getTextLength()), 0);
     if (myLookupStartMarker != null) {
       if (myLookupStartMarker.isValid() && myLookupStartMarker.getStartOffset() == start && myLookupStartMarker.getEndOffset() == start) {
         return;