text: //===------------- Disassembler.h - LLVM Disassembler -----------*- C++ -*-===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is distributed under the University of Illinois Open Source
  // License. See LICENSE.TXT for details.
  // 
  //===----------------------------------------------------------------------===//
  //
  // This file defines the interface for the Disassembly library's disassembler 
  // context.  The disassembler is responsible for producing strings for
  // individual instructions according to a given architecture and disassembly
  // syntax.
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef LLVM_MC_DISASSEMBLER_H
  #define LLVM_MC_DISASSEMBLER_H
  
  #include "llvm-c/Disassembler.h"
  #include "llvm/ADT/SmallString.h"
  #include "llvm/Support/raw_ostream.h"
  #include <string>
  
  namespace llvm {
  class MCContext;
  class MCAsmInfo;
  class MCDisassembler;
  class MCInstPrinter; 
  class MCInstrInfo;
  class MCRegisterInfo;
  class MCSubtargetInfo;
  class Target;
  
  //
  // This is the disassembler context returned by LLVMCreateDisasm().
  //
  class LLVMDisasmContext {
  private:
    //
    // The passed parameters when the disassembler context is created.
    //
    // The TripleName for this disassembler.
    std::string TripleName;
    // The pointer to the caller's block of symbolic information.
    void *DisInfo;
    // The Triple specific symbolic information type returned by GetOpInfo.
    int TagType;
    // The function to get the symbolic information for operands.
    LLVMOpInfoCallback GetOpInfo;
    // The function to look up a symbol name.
    LLVMSymbolLookupCallback SymbolLookUp;
    //
    // The objects created and saved by LLVMCreateDisasm() then used by
    // LLVMDisasmInstruction().
    //
    // The LLVM target corresponding to the disassembler.
    // FIXME: using std::unique_ptr<const llvm::Target> causes a malloc error
    //        when this LLVMDisasmContext is deleted.
    const Target *TheTarget;
    // The assembly information for the target architecture.
    std::unique_ptr<const llvm::MCAsmInfo> MAI;
    // The register information for the target architecture.
    std::unique_ptr<const llvm::MCRegisterInfo> MRI;
    // The subtarget information for the target architecture.
    std::unique_ptr<const llvm::MCSubtargetInfo> MSI;
    // The instruction information for the target architecture.
    std::unique_ptr<const llvm::MCInstrInfo> MII;
    // The assembly context for creating symbols and MCExprs.
    std::unique_ptr<const llvm::MCContext> Ctx;
    // The disassembler for the target architecture.
    std::unique_ptr<const llvm::MCDisassembler> DisAsm;
    // The instruction printer for the target architecture.
    std::unique_ptr<llvm::MCInstPrinter> IP;
    // The options used to set up the disassembler.
    uint64_t Options;
    // The CPU string.
    std::string CPU;
  
  public:
    // Comment stream and backing vector.
    SmallString<128> CommentsToEmit;
    raw_svector_ostream CommentStream;
  
    LLVMDisasmContext(std::string tripleName, void *disInfo, int tagType,
                      LLVMOpInfoCallback getOpInfo,
                      LLVMSymbolLookupCallback symbolLookUp,
                      const Target *theTarget, const MCAsmInfo *mAI,
                      const MCRegisterInfo *mRI,
                      const MCSubtargetInfo *mSI,
                      const MCInstrInfo *mII,
                      llvm::MCContext *ctx, const MCDisassembler *disAsm,
                      MCInstPrinter *iP) : TripleName(tripleName),
                      DisInfo(disInfo), TagType(tagType), GetOpInfo(getOpInfo),
                      SymbolLookUp(symbolLookUp), TheTarget(theTarget),
                      Options(0),
                      CommentStream(CommentsToEmit) {
      MAI.reset(mAI);
      MRI.reset(mRI);
      MSI.reset(mSI);
      MII.reset(mII);
      Ctx.reset(ctx);
      DisAsm.reset(disAsm);
      IP.reset(iP);
    }
    const std::string &getTripleName() const { return TripleName; }
    void *getDisInfo() const { return DisInfo; }
    int getTagType() const { return TagType; }
    LLVMOpInfoCallback getGetOpInfo() const { return GetOpInfo; }
    LLVMSymbolLookupCallback getSymbolLookupCallback() const {
      return SymbolLookUp;
    }
    const Target *getTarget() const { return TheTarget; }
    const MCDisassembler *getDisAsm() const { return DisAsm.get(); }
    const MCAsmInfo *getAsmInfo() const { return MAI.get(); }
    const MCInstrInfo *getInstrInfo() const { return MII.get(); }
    const MCRegisterInfo *getRegisterInfo() const { return MRI.get(); }
    const MCSubtargetInfo *getSubtargetInfo() const { return MSI.get(); }
    MCInstPrinter *getIP() { return IP.get(); }
    void setIP(MCInstPrinter *NewIP) { IP.reset(NewIP); }
    uint64_t getOptions() const { return Options; }
    void addOptions(uint64_t Options) { this->Options |= Options; }
    StringRef getCPU() const { return CPU; }
    void setCPU(const char *CPU) { this->CPU = CPU; }
  };
  
  } // namespace llvm
  
  #endif
  