Adding CXStringSet *createSet that takes a vector of StringRef as input.

Author: qiongsiwu

clang/tools/libclang/CXString.cpp

@@ -107,7 +107,8 @@ CXString createCXString(CXStringBuf *buf) {
   return Str;
 }
 
-CXStringSet *createSet(const std::vector<std::string> &Strings) {
+template <typename StringTy>
+static CXStringSet *createSetImpl(const std::vector<StringTy> &Strings) {
   CXStringSet *Set = new CXStringSet;
   Set->Count = Strings.size();
   Set->Strings = new CXString[Set->Count];
@@ -116,6 +117,13 @@ CXStringSet *createSet(const std::vector<std::string> &Strings) {
   return Set;
 }
 
+CXStringSet *createSet(const std::vector<std::string> &Strings) {
+  return createSetImpl(Strings);
+}
+
+CXStringSet *createSet(const std::vector<StringRef> &Strings) {
+  return createSetImpl(Strings);
+}
 
 //===----------------------------------------------------------------------===//
 // String pools.

clang/tools/libclang/CXString.h

@@ -67,7 +67,10 @@ CXString createRef(std::string String) = delete;
 /// Create a CXString object that is backed by a string buffer.
 CXString createCXString(CXStringBuf *buf);
 
+/// Create a CXStringSet object owns the strings. Such an object should be
+/// disposed with clang_disposeStringSet.
 CXStringSet *createSet(const std::vector<std::string> &Strings);
+CXStringSet *createSet(const std::vector<StringRef> &Strings);
 
 /// A string pool used for fast allocation/deallocation of strings.
 class CXStringPool {