From 85054e25a5f10c67a04495a5be0b9dbc48610d19 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Wed, 27 May 2015 11:44:27 +0200
Subject: [PATCH] inconsistent psi tree length diagnostics ( EA-53915 - assert:
 LowLevelSearchUtil.processElementsContainingWordInElement)

---
 .../psi/SingleRootFileViewProvider.java       | 22 +++++++++----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java b/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java
index 0b76ed43ed61..539fe4707a21 100644
--- a/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java
+++ b/platform/core-impl/src/com/intellij/psi/SingleRootFileViewProvider.java
@@ -165,10 +165,6 @@ public class SingleRootFileViewProvider extends UserDataHolderBase implements Fi
 
   @Override
   public void contentsSynchronized() {
-    unsetPsiContent();
-  }
-
-  private void unsetPsiContent() {
     if (!(myContent instanceof PsiFileContent)) return;
     setContent(new VirtualFileContent());
   }
@@ -452,14 +448,18 @@ public class SingleRootFileViewProvider extends UserDataHolderBase implements Fi
   }
 
   private void setContent(@NotNull Content content) {
-    // temporarily commented
-    //if (myPhysical) {
-    //  final Content oldContent = myContent;
-    //  if (oldContent != null && content.getModificationStamp() != oldContent.getModificationStamp()) {
-    //    ApplicationManager.getApplication().assertWriteAccessAllowed();
-    //  }
-    //}
+    Content prevContent = myContent;
     myContent = content;
+    if (prevContent instanceof PsiFileContent && content instanceof VirtualFileContent) {
+      int fileLength = content.getText().length();
+      for (FileElement fileElement : getKnownTreeRoots()) {
+        int nodeLength = fileElement.getTextLength();
+        if (nodeLength != fileLength) {
+          LOG.error("Inconsistent " + fileElement.getElementType() + " tree in " + this + "; nodeLength=" + nodeLength + "; fileLength=" + fileLength);
+        }
+      }
+    }
+    
   }
 
   @NonNls