1 files changed, 14 insertions, 0 deletions
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 394ee0ec43900..2d92de19d99c4 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -3918,6 +3918,20 @@ void clang_disposeTranslationUnit(CXTranslationUnit CTUnit) {
   }
 }
 
+unsigned clang_suspendTranslationUnit(CXTranslationUnit CTUnit) {
+  if (CTUnit) {
+    ASTUnit *Unit = cxtu::getASTUnit(CTUnit);
+
+    if (Unit && Unit->isUnsafeToFree())
+      return false;
+
+    Unit->ResetForParse();
+    return true;
+  }
+
+  return false;
+}
+
 unsigned clang_defaultReparseOptions(CXTranslationUnit TU) {
   return CXReparse_None;
 }