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1 //===- TpiStream.cpp - PDB Type Info (TPI) Stream 2 Access ------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_DEBUGINFO_PDB_RAW_PDBTPISTREAM_H
11 #define LLVM_DEBUGINFO_PDB_RAW_PDBTPISTREAM_H
12 
13 #include "llvm/DebugInfo/CodeView/StreamArray.h"
14 #include "llvm/DebugInfo/CodeView/StreamRef.h"
15 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
16 #include "llvm/DebugInfo/PDB/PDBTypes.h"
17 #include "llvm/DebugInfo/PDB/Raw/MappedBlockStream.h"
18 #include "llvm/DebugInfo/PDB/Raw/RawConstants.h"
19 #include "llvm/DebugInfo/PDB/Raw/RawTypes.h"
20 #include "llvm/Support/raw_ostream.h"
21 
22 #include "llvm/Support/Error.h"
23 
24 namespace llvm {
25 namespace pdb {
26 class PDBFile;
27 
28 class TpiStream {
29   struct HeaderInfo;
30 
31 public:
32   TpiStream(const PDBFile &File, std::unique_ptr<MappedBlockStream> Stream);
33   ~TpiStream();
34   Error reload();
35 
36   PdbRaw_TpiVer getTpiVersion() const;
37 
38   uint32_t TypeIndexBegin() const;
39   uint32_t TypeIndexEnd() const;
40   uint32_t NumTypeRecords() const;
41   uint16_t getTypeHashStreamIndex() const;
42   uint16_t getTypeHashStreamAuxIndex() const;
43 
44   uint32_t getHashKeySize() const;
45   uint32_t NumHashBuckets() const;
46   codeview::FixedStreamArray<support::ulittle32_t> getHashValues() const;
47   codeview::FixedStreamArray<TypeIndexOffset> getTypeIndexOffsets() const;
48   codeview::FixedStreamArray<TypeIndexOffset> getHashAdjustments() const;
49 
50   iterator_range<codeview::CVTypeArray::Iterator> types(bool *HadError) const;
51 
52   Error commit();
53 
54 private:
55   Error verifyHashValues();
56 
57   const PDBFile &Pdb;
58   std::unique_ptr<MappedBlockStream> Stream;
59 
60   codeview::CVTypeArray TypeRecords;
61 
62   std::unique_ptr<MappedBlockStream> HashStream;
63   codeview::FixedStreamArray<support::ulittle32_t> HashValues;
64   codeview::FixedStreamArray<TypeIndexOffset> TypeIndexOffsets;
65   codeview::FixedStreamArray<TypeIndexOffset> HashAdjustments;
66 
67   const HeaderInfo *Header;
68 };
69 }
70 }
71 
72 #endif
73