1 files changed, 50 insertions, 0 deletions
diff --git a/lib/Serialization/ASTCommon.h b/lib/Serialization/ASTCommon.h
new file mode 100644
index 0000000..a0e2ecd
--- /dev/null
+++ b/lib/Serialization/ASTCommon.h
@@ -0,0 +1,50 @@
+//===- ASTCommon.h - Common stuff for ASTReader/ASTWriter -*- C++ -*-=========//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines common functions that both ASTReader and ASTWriter use.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H
+#define LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H
+
+#include "clang/Serialization/ASTBitCodes.h"
+
+namespace clang {
+
+namespace serialization {
+
+TypeIdx TypeIdxFromBuiltin(const BuiltinType *BT);
+
+template <typename IdxForTypeTy>
+TypeID MakeTypeID(QualType T, IdxForTypeTy IdxForType) {
+  if (T.isNull())
+    return PREDEF_TYPE_NULL_ID;
+
+  unsigned FastQuals = T.getLocalFastQualifiers();
+  T.removeFastQualifiers();
+
+  if (T.hasLocalNonFastQualifiers())
+    return IdxForType(T).asTypeID(FastQuals);
+
+  assert(!T.hasLocalQualifiers());
+
+  if (const BuiltinType *BT = dyn_cast<BuiltinType>(T.getTypePtr()))
+    return TypeIdxFromBuiltin(BT).asTypeID(FastQuals);
+
+  return IdxForType(T).asTypeID(FastQuals);
+}
+
+unsigned ComputeHash(Selector Sel);
+
+} // namespace serialization
+
+} // namespace clang
+
+#endif