From 0359be8a2f9aad5a0fd1943eacce5a7ace86fe16 Mon Sep 17 00:00:00 2001
From: Dmitry Jemerov <yole@jetbrains.com>
Date: Tue, 15 Jun 2010 21:43:14 +0400
Subject: [PATCH] EA-20542 - NPE: PyClassType.getClassQName

---
 python/src/com/jetbrains/python/psi/types/PyClassType.java | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/python/src/com/jetbrains/python/psi/types/PyClassType.java b/python/src/com/jetbrains/python/psi/types/PyClassType.java
index 02cfa22d4c8e..a0b97415298e 100644
--- a/python/src/com/jetbrains/python/psi/types/PyClassType.java
+++ b/python/src/com/jetbrains/python/psi/types/PyClassType.java
@@ -26,8 +26,8 @@ import java.util.*;
  */
 public class PyClassType implements PyType {
 
-  protected PyClass myClass;
-  protected boolean myIsDefinition;
+  protected final PyClass myClass;
+  protected final boolean myIsDefinition;
 
   /**
    * Describes a class-based type. Since everything in Python is an instance of some class, this type pretty much completes
@@ -58,8 +58,9 @@ public class PyClassType implements PyType {
     return myIsDefinition;
   }
 
+  @Nullable
   public String getClassQName() {
-    return myClass.getQualifiedName();
+    return myClass == null ? null : myClass.getQualifiedName();
   }
 
   @Nullable