From f9e6f065a49243a5b235cdc4d1eec55f12f13ae8 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Tue, 22 Jul 2014 20:00:49 +0200
Subject: [PATCH] faster LexerEditorHighlighter.checkContentIsEqualTo

---
 .../openapi/editor/ex/util/LexerEditorHighlighter.java        | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/platform/editor-ui-ex/src/com/intellij/openapi/editor/ex/util/LexerEditorHighlighter.java b/platform/editor-ui-ex/src/com/intellij/openapi/editor/ex/util/LexerEditorHighlighter.java
index 443e4fb3ccac..77092d91a6c1 100644
--- a/platform/editor-ui-ex/src/com/intellij/openapi/editor/ex/util/LexerEditorHighlighter.java
+++ b/platform/editor-ui-ex/src/com/intellij/openapi/editor/ex/util/LexerEditorHighlighter.java
@@ -34,6 +34,7 @@ import com.intellij.openapi.fileTypes.PlainSyntaxHighlighter;
 import com.intellij.openapi.fileTypes.SyntaxHighlighter;
 import com.intellij.openapi.project.DumbAwareRunnable;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.util.Comparing;
 import com.intellij.psi.tree.IElementType;
 import com.intellij.util.ArrayUtil;
 import com.intellij.util.ui.UIUtil;
@@ -77,8 +78,7 @@ public class LexerEditorHighlighter implements EditorHighlighter, PrioritizedDoc
 
   public final synchronized boolean checkContentIsEqualTo(CharSequence sequence) {
     final Document document = getDocument();
-    if (document != null) return document.getText().equals(sequence.toString());
-    return false;
+    return document != null && Comparing.equal(document.getImmutableCharSequence(), sequence);
   }
 
   public EditorColorsScheme getScheme() {