CSE2410 Fall 2014 Bounce

// Copyright 2008 the V8 project authors. All rights reserved.

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

//

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//       notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above

//       copyright notice, this list of conditions and the following

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//       with the distribution.

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//       contributors may be used to endorse or promote products derived

//       from this software without specific prior written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

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#ifndef REGEXP_MACRO_ASSEMBLER_TRACER_H_

#define REGEXP_MACRO_ASSEMBLER_TRACER_H_

namespace v8 { namespace internal {

// Decorator on a RegExpMacroAssembler that write all calls.

class RegExpMacroAssemblerTracer: public RegExpMacroAssembler {

 public:

  explicit RegExpMacroAssemblerTracer(RegExpMacroAssembler* assembler);

  virtual ~RegExpMacroAssemblerTracer();

  virtual int stack_limit_slack() { return assembler_->stack_limit_slack(); }

  virtual void AdvanceCurrentPosition(int by);  // Signed cp change.

  virtual void AdvanceRegister(int reg, int by);  // r[reg] += by.

  virtual void Backtrack();

  virtual void Bind(Label* label);

  virtual void CheckAtStart(Label* on_at_start);

  virtual void CheckBitmap(uc16 start, Label* bitmap, Label* on_zero);

  virtual void CheckCharacter(uint32_t c, Label* on_equal);

  virtual void CheckCharacterAfterAnd(uint32_t c,

                                      uint32_t and_with,

                                      Label* on_equal);

  virtual void CheckCharacterGT(uc16 limit, Label* on_greater);

  virtual void CheckCharacterLT(uc16 limit, Label* on_less);

  virtual void CheckCharacters(

      Vector<const uc16> str,

      int cp_offset,

      Label* on_failure,

      bool check_end_of_string);

  virtual void CheckGreedyLoop(Label* on_tos_equals_current_position);

  virtual void CheckNotAtStart(Label* on_not_at_start);

  virtual void CheckNotBackReference(int start_reg, Label* on_no_match);

  virtual void CheckNotBackReferenceIgnoreCase(int start_reg,

                                               Label* on_no_match);

  virtual void CheckNotRegistersEqual(int reg1, int reg2, Label* on_not_equal);

  virtual void CheckNotCharacter(uint32_t c, Label* on_not_equal);

  virtual void CheckNotCharacterAfterAnd(uint32_t c,

                                         uint32_t and_with,

                                         Label* on_not_equal);

  virtual void CheckNotCharacterAfterMinusAnd(uc16 c,

                                              uc16 minus,

                                              uc16 and_with,

                                              Label* on_not_equal);

  virtual bool CheckSpecialCharacterClass(uc16 type,

                                          int cp_offset,

                                          bool check_offset,

                                          Label* on_no_match);

  virtual void DispatchByteMap(

      uc16 start,

      Label* byte_map,

      const Vector<Label*>& destinations);

  virtual void DispatchHalfNibbleMap(

      uc16 start,

      Label* half_nibble_map,

      const Vector<Label*>& destinations);

  virtual void DispatchHighByteMap(

      byte start,

      Label* byte_map,

      const Vector<Label*>& destinations);

  virtual void EmitOrLink(Label* label);

  virtual void Fail();

  virtual Handle<Object> GetCode(Handle<String> source);

  virtual void GoTo(Label* label);

  virtual void IfRegisterGE(int reg, int comparand, Label* if_ge);

  virtual void IfRegisterLT(int reg, int comparand, Label* if_lt);

  virtual void IfRegisterEqPos(int reg, Label* if_eq);

  virtual IrregexpImplementation Implementation();

  virtual void LoadCurrentCharacter(int cp_offset,

                                    Label* on_end_of_input,

                                    bool check_bounds = true,

                                    int characters = 1);

  virtual void PopCurrentPosition();

  virtual void PopRegister(int register_index);

  virtual void PushBacktrack(Label* label);

  virtual void PushCurrentPosition();

  virtual void PushRegister(int register_index,

                            StackCheckFlag check_stack_limit);

  virtual void ReadCurrentPositionFromRegister(int reg);

  virtual void ReadStackPointerFromRegister(int reg);

  virtual void SetRegister(int register_index, int to);

  virtual void Succeed();

  virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);

  virtual void ClearRegisters(int reg_from, int reg_to);

  virtual void WriteStackPointerToRegister(int reg);

 private:

  RegExpMacroAssembler* assembler_;

};

}}  // namespace v8::internal

#endif  // REGEXP_MACRO_ASSEMBLER_TRACER_H_