contrib/llvm/include/llvm/DebugInfo/PDB/Native/TpiStream.h

   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/TypeRecord.h"
  14 #include "llvm/DebugInfo/PDB/Native/HashTable.h"
  15 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
  16 #include "llvm/DebugInfo/PDB/Native/RawTypes.h"
  17 #include "llvm/DebugInfo/PDB/PDBTypes.h"
  18 #include "llvm/Support/BinaryStreamArray.h"
  19 #include "llvm/Support/BinaryStreamRef.h"
  20 #include "llvm/Support/raw_ostream.h"
  21
  22 #include "llvm/Support/Error.h"
  23
  24 namespace llvm {
  25 namespace codeview {
  26 class LazyRandomTypeCollection;
  27 }
  28 namespace msf {
  29 class MappedBlockStream;
  30 }
  31 namespace pdb {
  32 class PDBFile;
  33
  34 class TpiStream {
  35   friend class TpiStreamBuilder;
  36
  37 public:
  38   TpiStream(PDBFile &File, std::unique_ptr<msf::MappedBlockStream> Stream);
  39   ~TpiStream();
  40   Error reload();
  41
  42   PdbRaw_TpiVer getTpiVersion() const;
  43
  44   uint32_t TypeIndexBegin() const;
  45   uint32_t TypeIndexEnd() const;
  46   uint32_t getNumTypeRecords() const;
  47   uint16_t getTypeHashStreamIndex() const;
  48   uint16_t getTypeHashStreamAuxIndex() const;
  49
  50   uint32_t getHashKeySize() const;
  51   uint32_t getNumHashBuckets() const;
  52   FixedStreamArray<support::ulittle32_t> getHashValues() const;
  53   FixedStreamArray<codeview::TypeIndexOffset> getTypeIndexOffsets() const;
  54   HashTable<support::ulittle32_t> &getHashAdjusters();
  55
  56   codeview::CVTypeRange types(bool *HadError) const;
  57   const codeview::CVTypeArray &typeArray() const { return TypeRecords; }
  58
  59   codeview::LazyRandomTypeCollection &typeCollection() { return *Types; }
  60
  61   Expected<codeview::TypeIndex>
  62   findFullDeclForForwardRef(codeview::TypeIndex ForwardRefTI) const;
  63
  64   std::vector<codeview::TypeIndex> findRecordsByName(StringRef Name) const;
  65
  66   codeview::CVType getType(codeview::TypeIndex Index);
  67
  68   BinarySubstreamRef getTypeRecordsSubstream() const;
  69
  70   Error commit();
  71
  72   void buildHashMap();
  73
  74   bool supportsTypeLookup() const;
  75
  76 private:
  77   PDBFile &Pdb;
  78   std::unique_ptr<msf::MappedBlockStream> Stream;
  79
  80   std::unique_ptr<codeview::LazyRandomTypeCollection> Types;
  81
  82   BinarySubstreamRef TypeRecordsSubstream;
  83
  84   codeview::CVTypeArray TypeRecords;
  85
  86   std::unique_ptr<BinaryStream> HashStream;
  87   FixedStreamArray<support::ulittle32_t> HashValues;
  88   FixedStreamArray<codeview::TypeIndexOffset> TypeIndexOffsets;
  89   HashTable<support::ulittle32_t> HashAdjusters;
  90
  91   std::vector<std::vector<codeview::TypeIndex>> HashMap;
  92
  93   const TpiStreamHeader *Header;
  94 };
  95 }
  96 }
  97
  98 #endif