1 files changed, 22 insertions, 17 deletions
diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index 457f4c8..b4c0c59 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -189,7 +189,10 @@ bool CXXRecordDecl::hasConstCopyAssignment(ASTContext &Context,
     //   A user-declared copy assignment operator is a non-static non-template
     //   member function of class X with exactly one parameter of type X, X&,
     //   const X&, volatile X& or const volatile X&.
-    const CXXMethodDecl* Method = cast<CXXMethodDecl>(*Op);
+    const CXXMethodDecl* Method = dyn_cast<CXXMethodDecl>(*Op);
+    if (!Method)
+      continue;
+
     if (Method->isStatic())
       continue;
     if (Method->getPrimaryTemplate())
@@ -364,34 +367,36 @@ CXXRecordDecl::getNestedVisibleConversionFunctions(CXXRecordDecl *RD,
       }
     }
   }
-  
+
   if (getNumBases() == 0 && getNumVBases() == 0)
     return;
-  
+
   llvm::SmallPtrSet<CanQualType, 8> ConversionFunctions;
   if (!inTopClass)
     collectConversionFunctions(ConversionFunctions);
-  
+
   for (CXXRecordDecl::base_class_iterator VBase = vbases_begin(),
        E = vbases_end(); VBase != E; ++VBase) {
-    CXXRecordDecl *VBaseClassDecl
-      = cast<CXXRecordDecl>(VBase->getType()->getAs<RecordType>()->getDecl());
-    VBaseClassDecl->getNestedVisibleConversionFunctions(RD,
-                  TopConversionsTypeSet,
-                  (inTopClass ? TopConversionsTypeSet : ConversionFunctions));
-      
+    if (const RecordType *RT = VBase->getType()->getAs<RecordType>()) {
+      CXXRecordDecl *VBaseClassDecl
+        = cast<CXXRecordDecl>(RT->getDecl());
+      VBaseClassDecl->getNestedVisibleConversionFunctions(RD,
+                    TopConversionsTypeSet,
+                    (inTopClass ? TopConversionsTypeSet : ConversionFunctions));
+    }
   }
   for (CXXRecordDecl::base_class_iterator Base = bases_begin(),
        E = bases_end(); Base != E; ++Base) {
     if (Base->isVirtual())
       continue;
-    CXXRecordDecl *BaseClassDecl
-      = cast<CXXRecordDecl>(Base->getType()->getAs<RecordType>()->getDecl());
-    
-    BaseClassDecl->getNestedVisibleConversionFunctions(RD,
-                  TopConversionsTypeSet,
-                  (inTopClass ? TopConversionsTypeSet : ConversionFunctions));
-    
+    if (const RecordType *RT = Base->getType()->getAs<RecordType>()) {
+      CXXRecordDecl *BaseClassDecl
+        = cast<CXXRecordDecl>(RT->getDecl());
+
+      BaseClassDecl->getNestedVisibleConversionFunctions(RD,
+                    TopConversionsTypeSet,
+                    (inTopClass ? TopConversionsTypeSet : ConversionFunctions));
+    }
   }
 }