vendor/llvm/llvm-trunk-r300422

1 files changed, 88 insertions, 0 deletions

diff --git a/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h b/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h
new file mode 100644
index 000000000000..a29ed0b610d3
--- /dev/null
+++ b/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h
@@ -0,0 +1,88 @@
+//===- TpiStreamBuilder.h - PDB Tpi Stream Creation -------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_PDB_RAW_PDBTPISTREAMBUILDER_H
+#define LLVM_DEBUGINFO_PDB_RAW_PDBTPISTREAMBUILDER_H
+
+#include "llvm/ADT/Optional.h"
+#include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
+#include "llvm/Support/Allocator.h"
+#include "llvm/Support/BinaryByteStream.h"
+#include "llvm/Support/BinaryItemStream.h"
+#include "llvm/Support/BinaryStreamRef.h"
+#include "llvm/Support/Error.h"
+
+#include <vector>
+
+namespace llvm {
+class BinaryByteStream;
+class WritableBinaryStreamRef;
+
+template <> struct BinaryItemTraits<llvm::codeview::CVType> {
+  static size_t length(const codeview::CVType &Item) { return Item.length(); }
+  static ArrayRef<uint8_t> bytes(const codeview::CVType &Item) {
+    return Item.data();
+  }
+};
+
+namespace codeview {
+class TypeRecord;
+}
+namespace msf {
+class MSFBuilder;
+struct MSFLayout;
+}
+namespace pdb {
+class PDBFile;
+class TpiStream;
+struct TpiStreamHeader;
+
+class TpiStreamBuilder {
+public:
+  explicit TpiStreamBuilder(msf::MSFBuilder &Msf, uint32_t StreamIdx);
+  ~TpiStreamBuilder();
+
+  TpiStreamBuilder(const TpiStreamBuilder &) = delete;
+  TpiStreamBuilder &operator=(const TpiStreamBuilder &) = delete;
+
+  void setVersionHeader(PdbRaw_TpiVer Version);
+  void addTypeRecord(ArrayRef<uint8_t> Type, Optional<uint32_t> Hash);
+
+  Error finalizeMsfLayout();
+
+  Error commit(const msf::MSFLayout &Layout, WritableBinaryStreamRef Buffer);
+
+  uint32_t calculateSerializedLength();
+
+private:
+  uint32_t calculateHashBufferSize() const;
+  uint32_t calculateIndexOffsetSize() const;
+  Error finalize();
+
+  msf::MSFBuilder &Msf;
+  BumpPtrAllocator &Allocator;
+
+  size_t TypeRecordBytes = 0;
+
+  Optional<PdbRaw_TpiVer> VerHeader;
+  std::vector<ArrayRef<uint8_t>> TypeRecords;
+  std::vector<uint32_t> TypeHashes;
+  std::vector<TypeIndexOffset> TypeIndexOffsets;
+  uint32_t HashStreamIndex = kInvalidStreamIndex;
+  std::unique_ptr<BinaryByteStream> HashValueStream;
+
+  const TpiStreamHeader *Header;
+  uint32_t Idx;
+};
+}
+}
+
+#endif