From ce4dbbf82dfbe482e12fb97c6124ee1b2a70f491 Mon Sep 17 00:00:00 2001
From: "Maxim.Mossienko" <maxim.mossienko@jetbrains.com>
Date: Mon, 19 Mar 2012 15:36:56 +0400
Subject: [PATCH] fix NPE in case context element has no containing file

---
 .../src/com/intellij/psi/impl/source/DummyHolder.java         | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/platform/core-impl/src/com/intellij/psi/impl/source/DummyHolder.java b/platform/core-impl/src/com/intellij/psi/impl/source/DummyHolder.java
index 1a1a5111c878..c12f291f9431 100644
--- a/platform/core-impl/src/com/intellij/psi/impl/source/DummyHolder.java
+++ b/platform/core-impl/src/com/intellij/psi/impl/source/DummyHolder.java
@@ -52,8 +52,10 @@ public class DummyHolder extends PsiFileImpl {
 
   protected static Language language(PsiElement context, Language defaultLanguage) {
     if (context == null) return defaultLanguage;
+    PsiFile file = context.getContainingFile();
+    if (file == null) return defaultLanguage;
     Language contextLanguage = context.getLanguage();
-    Language language = context.getContainingFile().getLanguage();
+    Language language = file.getLanguage();
     if (language.isKindOf(contextLanguage)) return language;
     return contextLanguage;
   }