1 files changed, 39 insertions, 0 deletions
diff --git a/llvm/include/llvm/DebugInfo/PDB/IPDBDataStream.h b/llvm/include/llvm/DebugInfo/PDB/IPDBDataStream.h
new file mode 100644
index 000000000000..4d0589a87915
--- /dev/null
+++ b/llvm/include/llvm/DebugInfo/PDB/IPDBDataStream.h
@@ -0,0 +1,39 @@
+//===- IPDBDataStream.h - base interface for child enumerator ---*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_PDB_IPDBDATASTREAM_H
+#define LLVM_DEBUGINFO_PDB_IPDBDATASTREAM_H
+
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/SmallVector.h"
+#include <cstdint>
+#include <string>
+
+namespace llvm {
+namespace pdb {
+
+/// IPDBDataStream defines an interface used to represent a stream consisting
+/// of a name and a series of records whose formats depend on the particular
+/// stream type.
+class IPDBDataStream {
+public:
+  using RecordType = SmallVector<uint8_t, 32>;
+
+  virtual ~IPDBDataStream();
+
+  virtual uint32_t getRecordCount() const = 0;
+  virtual std::string getName() const = 0;
+  virtual Optional<RecordType> getItemAtIndex(uint32_t Index) const = 0;
+  virtual bool getNext(RecordType &Record) = 0;
+  virtual void reset() = 0;
+};
+
+} // end namespace pdb
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_PDB_IPDBDATASTREAM_H