text: //===- DIASession.h - DIA implementation of IPDBSession ---------*- C++ -*-===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is distributed under the University of Illinois Open Source
  // License. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef LLVM_DEBUGINFO_PDB_DIA_DIASESSION_H
  #define LLVM_DEBUGINFO_PDB_DIA_DIASESSION_H
  
  #include "DIASupport.h"
  #include "llvm/DebugInfo/PDB/IPDBSession.h"
  #include "llvm/Support/Error.h"
  
  #include <system_error>
  
  namespace llvm {
  class StringRef;
  
  namespace pdb {
  class DIASession : public IPDBSession {
  public:
    explicit DIASession(CComPtr<IDiaSession> DiaSession);
  
    static Error createFromPdb(StringRef Path,
                               std::unique_ptr<IPDBSession> &Session);
    static Error createFromExe(StringRef Path,
                               std::unique_ptr<IPDBSession> &Session);
  
    uint64_t getLoadAddress() const override;
    void setLoadAddress(uint64_t Address) override;
    std::unique_ptr<PDBSymbolExe> getGlobalScope() override;
    std::unique_ptr<PDBSymbol> getSymbolById(uint32_t SymbolId) const override;
  
    std::unique_ptr<PDBSymbol>
    findSymbolByAddress(uint64_t Address, PDB_SymType Type) const override;
  
    std::unique_ptr<IPDBEnumLineNumbers>
    findLineNumbers(const PDBSymbolCompiland &Compiland,
                    const IPDBSourceFile &File) const override;
    std::unique_ptr<IPDBEnumLineNumbers>
    findLineNumbersByAddress(uint64_t Address, uint32_t Length) const override;
  
    std::unique_ptr<IPDBEnumSourceFiles>
    findSourceFiles(const PDBSymbolCompiland *Compiland, llvm::StringRef Pattern,
                    PDB_NameSearchFlags Flags) const override;
    std::unique_ptr<IPDBSourceFile>
    findOneSourceFile(const PDBSymbolCompiland *Compiland,
                      llvm::StringRef Pattern,
                      PDB_NameSearchFlags Flags) const override;
    std::unique_ptr<IPDBEnumChildren<PDBSymbolCompiland>>
    findCompilandsForSourceFile(llvm::StringRef Pattern,
                                PDB_NameSearchFlags Flags) const override;
    std::unique_ptr<PDBSymbolCompiland>
    findOneCompilandForSourceFile(llvm::StringRef Pattern,
                                  PDB_NameSearchFlags Flags) const override;
    std::unique_ptr<IPDBEnumSourceFiles> getAllSourceFiles() const override;
    std::unique_ptr<IPDBEnumSourceFiles> getSourceFilesForCompiland(
        const PDBSymbolCompiland &Compiland) const override;
    std::unique_ptr<IPDBSourceFile>
    getSourceFileById(uint32_t FileId) const override;
  
    std::unique_ptr<IPDBEnumDataStreams> getDebugStreams() const override;
  
    std::unique_ptr<IPDBEnumTables> getEnumTables() const override;
  private:
    CComPtr<IDiaSession> Session;
  };
  }
  }
  #endif
  