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      1 //===- InfoStream.h - PDB Info Stream (Stream 1) 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_INFOSTREAM_H
     10 #define LLVM_DEBUGINFO_PDB_NATIVE_INFOSTREAM_H
     11 
     12 #include "llvm/ADT/BitmaskEnum.h"
     13 #include "llvm/ADT/StringMap.h"
     14 #include "llvm/DebugInfo/CodeView/GUID.h"
     15 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
     16 #include "llvm/DebugInfo/PDB/Native/NamedStreamMap.h"
     17 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
     18 #include "llvm/DebugInfo/PDB/PDBTypes.h"
     19 
     20 #include "llvm/Support/Endian.h"
     21 #include "llvm/Support/Error.h"
     22 
     23 namespace llvm {
     24 namespace pdb {
     25 class InfoStreamBuilder;
     26 class PDBFile;
     27 
     28 class InfoStream {
     29   friend class InfoStreamBuilder;
     30 
     31 public:
     32   InfoStream(std::unique_ptr<BinaryStream> Stream);
     33 
     34   Error reload();
     35 
     36   uint32_t getStreamSize() const;
     37 
     38   const InfoStreamHeader *getHeader() const { return Header; }
     39 
     40   bool containsIdStream() const;
     41   PdbRaw_ImplVer getVersion() const;
     42   uint32_t getSignature() const;
     43   uint32_t getAge() const;
     44   codeview::GUID getGuid() const;
     45   uint32_t getNamedStreamMapByteSize() const;
     46 
     47   PdbRaw_Features getFeatures() const;
     48   ArrayRef<PdbRaw_FeatureSig> getFeatureSignatures() const;
     49 
     50   const NamedStreamMap &getNamedStreams() const;
     51 
     52   BinarySubstreamRef getNamedStreamsBuffer() const;
     53 
     54   Expected<uint32_t> getNamedStreamIndex(llvm::StringRef Name) const;
     55   StringMap<uint32_t> named_streams() const;
     56 
     57 private:
     58   std::unique_ptr<BinaryStream> Stream;
     59 
     60   const InfoStreamHeader *Header;
     61 
     62   BinarySubstreamRef SubNamedStreams;
     63 
     64   std::vector<PdbRaw_FeatureSig> FeatureSignatures;
     65   PdbRaw_Features Features = PdbFeatureNone;
     66 
     67   uint32_t NamedStreamMapByteSize = 0;
     68 
     69   NamedStreamMap NamedStreams;
     70 };
     71 }
     72 }
     73 
     74 #endif
     75