From a13e2d510f0e619f138ecf00b3f3ecffa7f0510f Mon Sep 17 00:00:00 2001
From: Alexey Kudravtsev <cdr@intellij.com>
Date: Mon, 28 Mar 2011 11:00:18 +0400
Subject: [PATCH] optimization

---
 .../tree/injected/InjectedFileViewProvider.java   | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedFileViewProvider.java b/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedFileViewProvider.java
index 79d46cefb692..88e63c3fccad 100644
--- a/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedFileViewProvider.java
+++ b/platform/lang-impl/src/com/intellij/psi/impl/source/tree/injected/InjectedFileViewProvider.java
@@ -37,12 +37,11 @@ import java.util.List;
  * @author cdr
 */
 public class InjectedFileViewProvider extends SingleRootFileViewProvider {
-  private final Object LOCK = new Object();
   private Place myShreds;
   private Project myProject;
   private final Object myLock = new Object();
   private final DocumentWindow myDocumentWindow;
-  private boolean physical = true;
+  private volatile boolean physical = true;
 
   InjectedFileViewProvider(@NotNull PsiManager psiManager,
                            @NotNull VirtualFileWindow virtualFile,
@@ -142,21 +141,17 @@ public class InjectedFileViewProvider extends SingleRootFileViewProvider {
 
   @Override
   public boolean isEventSystemEnabled() {
-    if (LOCK == null) return true; // hack to avoid NPE when this method called from super class constructor
-    synchronized (LOCK) {
-      return physical;
-    }
+    if (myLock == null) return true; // hack to avoid NPE when this method called from super class constructor
+    return physical;
   }
 
   @Override
   public boolean isPhysical() {
-    synchronized (LOCK) {
-      return physical;
-    }
+    return isEventSystemEnabled();
   }
 
   public void performNonPhysically(Runnable runnable) {
-    synchronized (LOCK) {
+    synchronized (myLock) {
       physical = false;
       try {
         runnable.run();