From f4c6eae3bb304d990a1758960b8e902496a75bdc Mon Sep 17 00:00:00 2001
From: Nikolai Kosjar <nikolai.kosjar@digia.com>
Date: Fri, 16 Aug 2013 12:47:03 +0200
Subject: [PATCH] C++: Fix crash in typedef resolving

Task-number: QTCREATORBUG-9990

Change-Id: I8153f18c8b7402c5cb3edbe41098792be183de44
Reviewed-by: Przemyslaw Gorszkowski <pgorszkowski@gmail.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
---
 src/libs/cplusplus/ResolveExpression.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libs/cplusplus/ResolveExpression.cpp b/src/libs/cplusplus/ResolveExpression.cpp
index 9b09c2c5b59..08213d43a4c 100644
--- a/src/libs/cplusplus/ResolveExpression.cpp
+++ b/src/libs/cplusplus/ResolveExpression.cpp
@@ -894,6 +894,8 @@ private:
     static QList<LookupItem> typedefsFromScopeUpToFunctionScope(const Name *name, Scope *scope)
     {
         QList<LookupItem> results;
+        if (!scope)
+            return results;
         Scope *enclosingBlockScope = 0;
         for (Block *block = scope->asBlock(); block;
              block = enclosingBlockScope ? enclosingBlockScope->asBlock() : 0) {
@@ -977,7 +979,7 @@ ClassOrNamespace *ResolveExpression::baseExpression(const QList<LookupItem> &bas
     TypedefsResolver typedefsResolver(_context);
 
     foreach (const LookupItem &r, baseResults) {
-        if (!r.type().type())
+        if (!r.type().type() || !r.scope())
             continue;
         FullySpecifiedType ty = r.type().simplified();
         FullySpecifiedType originalType = ty;