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      1 //===- Streamutil.h - PDB stream utilities ----------------------*- 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_TOOLS_LLVMPDBDUMP_STREAMUTIL_H
     10 #define LLVM_TOOLS_LLVMPDBDUMP_STREAMUTIL_H
     11 
     12 #include "llvm/ADT/Optional.h"
     13 #include "llvm/ADT/SmallVector.h"
     14 #include "llvm/ADT/StringRef.h"
     15 
     16 #include <string>
     17 
     18 namespace llvm {
     19 namespace pdb {
     20 class PDBFile;
     21 enum class StreamPurpose {
     22   NamedStream,
     23   ModuleStream,
     24   Symbols,
     25   PDB,
     26   DBI,
     27   TPI,
     28   IPI,
     29   GlobalHash,
     30   PublicHash,
     31   TpiHash,
     32   IpiHash,
     33   Other
     34 };
     35 
     36 struct StreamInfo {
     37 public:
     38   StreamInfo() {}
     39 
     40   uint32_t getModuleIndex() const { return *ModuleIndex; }
     41   StreamPurpose getPurpose() const { return Purpose; }
     42   StringRef getShortName() const { return Name; }
     43   uint32_t getStreamIndex() const { return StreamIndex; }
     44   std::string getLongName() const;
     45 
     46   static StreamInfo createStream(StreamPurpose Purpose, StringRef Name,
     47                                  uint32_t StreamIndex);
     48   static StreamInfo createModuleStream(StringRef Module, uint32_t StreamIndex,
     49                                        uint32_t Modi);
     50 
     51 private:
     52   StreamPurpose Purpose;
     53   uint32_t StreamIndex;
     54   std::string Name;
     55   Optional<uint32_t> ModuleIndex;
     56 };
     57 
     58 void discoverStreamPurposes(PDBFile &File,
     59                             SmallVectorImpl<StreamInfo> &Streams);
     60 }
     61 }
     62 
     63 #endif
     64