[libclang] Make sure we don't crash when trying to index code that

managed to insert an @interface as top level decl contained by another
@interface.

A commit to also not allow this as valid code will be coming.

rdar://11105114.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153354 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 3 deletions

diff --git a/tools/libclang/IndexDecl.cpp b/tools/libclang/IndexDecl.cpp
index 3f2c8b5710..c257c342aa 100644
--- a/tools/libclang/IndexDecl.cpp
+++ b/tools/libclang/IndexDecl.cpp
@@ -328,7 +328,9 @@ void IndexingContext::indexDeclGroupRef(DeclGroupRef DG) {
 }
 
 void IndexingContext::indexTUDeclsInObjCContainer() {
-  for (unsigned i = 0, e = TUDeclsInObjCContainer.size(); i != e; ++i)
-    indexDeclGroupRef(TUDeclsInObjCContainer[i]);
-  TUDeclsInObjCContainer.clear();
+  while (!TUDeclsInObjCContainer.empty()) {
+    DeclGroupRef DG = TUDeclsInObjCContainer.front();
+    TUDeclsInObjCContainer.pop_front();
+    indexDeclGroupRef(DG);
+  }
 }