libclang: audit all APIs that accept a CXTranslationUnit to make sure that

checks for invalid translation unit are in place.  Also, while there, add log
output for this case.

llvm-svn: 201155

1 files changed, 5 insertions, 1 deletions

diff --git a/clang/tools/libclang/CIndexInclusionStack.cpp b/clang/tools/libclang/CIndexInclusionStack.cpp
index a6d3115409b..2a56593b9dc 100644
--- a/clang/tools/libclang/CIndexInclusionStack.cpp
+++ b/clang/tools/libclang/CIndexInclusionStack.cpp
@@ -24,7 +24,11 @@ using namespace clang;
 extern "C" {
 void clang_getInclusions(CXTranslationUnit TU, CXInclusionVisitor CB,
                          CXClientData clientData) {
-  
+  if (cxtu::isNotUseableTU(TU)) {
+    LOG_BAD_TU(TU);
+    return;
+  }
+
   ASTUnit *CXXUnit = cxtu::getASTUnit(TU);
   SourceManager &SM = CXXUnit->getSourceManager();
   ASTContext &Ctx = CXXUnit->getASTContext();