1// Copyright 2008 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef V8_REGEXP_MACRO_ASSEMBLER_TRACER_H_
6#define V8_REGEXP_MACRO_ASSEMBLER_TRACER_H_
7
8namespace v8 {
9namespace internal {
10
11// Decorator on a RegExpMacroAssembler that write all calls.
12class RegExpMacroAssemblerTracer: public RegExpMacroAssembler {
13 public:
14  explicit RegExpMacroAssemblerTracer(RegExpMacroAssembler* assembler);
15  virtual ~RegExpMacroAssemblerTracer();
16  virtual int stack_limit_slack() { return assembler_->stack_limit_slack(); }
17  virtual bool CanReadUnaligned() { return assembler_->CanReadUnaligned(); }
18  virtual void AdvanceCurrentPosition(int by);  // Signed cp change.
19  virtual void AdvanceRegister(int reg, int by);  // r[reg] += by.
20  virtual void Backtrack();
21  virtual void Bind(Label* label);
22  virtual void CheckAtStart(Label* on_at_start);
23  virtual void CheckCharacter(unsigned c, Label* on_equal);
24  virtual void CheckCharacterAfterAnd(unsigned c,
25                                      unsigned and_with,
26                                      Label* on_equal);
27  virtual void CheckCharacterGT(uc16 limit, Label* on_greater);
28  virtual void CheckCharacterLT(uc16 limit, Label* on_less);
29  virtual void CheckGreedyLoop(Label* on_tos_equals_current_position);
30  virtual void CheckNotAtStart(Label* on_not_at_start);
31  virtual void CheckNotBackReference(int start_reg, Label* on_no_match);
32  virtual void CheckNotBackReferenceIgnoreCase(int start_reg,
33                                               Label* on_no_match);
34  virtual void CheckNotCharacter(unsigned c, Label* on_not_equal);
35  virtual void CheckNotCharacterAfterAnd(unsigned c,
36                                         unsigned and_with,
37                                         Label* on_not_equal);
38  virtual void CheckNotCharacterAfterMinusAnd(uc16 c,
39                                              uc16 minus,
40                                              uc16 and_with,
41                                              Label* on_not_equal);
42  virtual void CheckCharacterInRange(uc16 from,
43                                     uc16 to,
44                                     Label* on_in_range);
45  virtual void CheckCharacterNotInRange(uc16 from,
46                                        uc16 to,
47                                        Label* on_not_in_range);
48  virtual void CheckBitInTable(Handle<ByteArray> table, Label* on_bit_set);
49  virtual bool CheckSpecialCharacterClass(uc16 type,
50                                          Label* on_no_match);
51  virtual void Fail();
52  virtual Handle<HeapObject> GetCode(Handle<String> source);
53  virtual void GoTo(Label* label);
54  virtual void IfRegisterGE(int reg, int comparand, Label* if_ge);
55  virtual void IfRegisterLT(int reg, int comparand, Label* if_lt);
56  virtual void IfRegisterEqPos(int reg, Label* if_eq);
57  virtual IrregexpImplementation Implementation();
58  virtual void LoadCurrentCharacter(int cp_offset,
59                                    Label* on_end_of_input,
60                                    bool check_bounds = true,
61                                    int characters = 1);
62  virtual void PopCurrentPosition();
63  virtual void PopRegister(int register_index);
64  virtual void PushBacktrack(Label* label);
65  virtual void PushCurrentPosition();
66  virtual void PushRegister(int register_index,
67                            StackCheckFlag check_stack_limit);
68  virtual void ReadCurrentPositionFromRegister(int reg);
69  virtual void ReadStackPointerFromRegister(int reg);
70  virtual void SetCurrentPositionFromEnd(int by);
71  virtual void SetRegister(int register_index, int to);
72  virtual bool Succeed();
73  virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);
74  virtual void ClearRegisters(int reg_from, int reg_to);
75  virtual void WriteStackPointerToRegister(int reg);
76
77 private:
78  RegExpMacroAssembler* assembler_;
79};
80
81}}  // namespace v8::internal
82
83#endif  // V8_REGEXP_MACRO_ASSEMBLER_TRACER_H_
84