LLVM  9.0.0svn
PDBStringTableBuilder.h
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1 //===- PDBStringTableBuilder.h - PDB String Table Builder -------*- 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 // This file creates the "/names" stream.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_DEBUGINFO_PDB_RAW_PDBSTRINGTABLEBUILDER_H
14 #define LLVM_DEBUGINFO_PDB_RAW_PDBSTRINGTABLEBUILDER_H
15 
16 #include "llvm/ADT/DenseMap.h"
17 #include "llvm/ADT/StringRef.h"
19 #include "llvm/Support/Error.h"
20 #include <vector>
21 
22 namespace llvm {
23 class BinaryStreamWriter;
24 class WritableBinaryStreamRef;
25 
26 namespace msf {
27 struct MSFLayout;
28 }
29 
30 namespace pdb {
31 
32 class PDBFileBuilder;
33 class PDBStringTableBuilder;
34 
37 
39  uint32_t hashLookupKey(StringRef S) const;
40  StringRef storageKeyToLookupKey(uint32_t Offset) const;
41  uint32_t lookupKeyToStorageKey(StringRef S);
42 };
43 
45 public:
46  // If string S does not exist in the string table, insert it.
47  // Returns the ID for S.
48  uint32_t insert(StringRef S);
49 
50  uint32_t getIdForString(StringRef S) const;
51  StringRef getStringForId(uint32_t Id) const;
52 
53  uint32_t calculateSerializedSize() const;
54  Error commit(BinaryStreamWriter &Writer) const;
55 
56  void setStrings(const codeview::DebugStringTableSubsection &Strings);
57 
58 private:
59  uint32_t calculateHashTableSize() const;
60  Error writeHeader(BinaryStreamWriter &Writer) const;
61  Error writeStrings(BinaryStreamWriter &Writer) const;
62  Error writeHashTable(BinaryStreamWriter &Writer) const;
63  Error writeEpilogue(BinaryStreamWriter &Writer) const;
64 
66 };
67 
68 } // end namespace pdb
69 } // end namespace llvm
70 
71 #endif // LLVM_DEBUGINFO_PDB_RAW_PDBSTRINGTABLEBUILDER_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
Provides write only access to a subclass of WritableBinaryStream.
Represents a read-write view of a CodeView string table.
Lightweight error class with error context and mandatory checking.
Definition: Error.h:157
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48