1 //===- SymbolStream.cpp - PDB Symbol Stream Access ------------------------===//
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 #include "llvm/DebugInfo/PDB/Native/SymbolStream.h"
11 
12 #include "llvm/DebugInfo/CodeView/CodeView.h"
13 #include "llvm/DebugInfo/CodeView/TypeRecord.h"
14 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
15 #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
16 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
17 #include "llvm/DebugInfo/PDB/Native/RawError.h"
18 #include "llvm/Support/BinaryStreamReader.h"
19 #include "llvm/Support/Endian.h"
20 
21 using namespace llvm;
22 using namespace llvm::msf;
23 using namespace llvm::support;
24 using namespace llvm::pdb;
25 
26 SymbolStream::SymbolStream(std::unique_ptr<MappedBlockStream> Stream)
27     : Stream(std::move(Stream)) {}
28 
29 SymbolStream::~SymbolStream() {}
30 
31 Error SymbolStream::reload() {
32   BinaryStreamReader Reader(*Stream);
33 
34   if (auto EC = Reader.readArray(SymbolRecords, Stream->getLength()))
35     return EC;
36 
37   return Error::success();
38 }
39 
40 iterator_range<codeview::CVSymbolArray::Iterator>
41 SymbolStream::getSymbols(bool *HadError) const {
42   return llvm::make_range(SymbolRecords.begin(HadError), SymbolRecords.end());
43 }
44 
45 Error SymbolStream::commit() { return Error::success(); }
46