1//===- TpiStream.cpp - PDB Type Info (TPI) Stream 2 Access ------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_DEBUGINFO_PDB_NATIVE_TPISTREAM_H
10#define LLVM_DEBUGINFO_PDB_NATIVE_TPISTREAM_H
11
12#include "llvm/DebugInfo/CodeView/CVRecord.h"
13#include "llvm/DebugInfo/PDB/Native/HashTable.h"
14#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
15#include "llvm/Support/BinaryStreamArray.h"
16#include "llvm/Support/BinaryStreamRef.h"
17
18#include "llvm/Support/Error.h"
19
20namespace llvm {
21class BinaryStream;
22namespace codeview {
23class TypeIndex;
24struct TypeIndexOffset;
25class LazyRandomTypeCollection;
26}
27namespace msf {
28class MappedBlockStream;
29}
30namespace pdb {
31struct TpiStreamHeader;
32class PDBFile;
33
34class TpiStream {
35 friend class TpiStreamBuilder;
36
37public:
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
76private:
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
99

source code of llvm/include/llvm/DebugInfo/PDB/Native/TpiStream.h