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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_INTERPRETER_BYTECODE_ARRAY_ITERATOR_H_ | 5 #ifndef V8_INTERPRETER_BYTECODE_ARRAY_ITERATOR_H_ |
6 #define V8_INTERPRETER_BYTECODE_ARRAY_ITERATOR_H_ | 6 #define V8_INTERPRETER_BYTECODE_ARRAY_ITERATOR_H_ |
7 | 7 |
8 #include "src/handles.h" | 8 #include "src/handles.h" |
9 #include "src/interpreter/bytecodes.h" | 9 #include "src/interpreter/bytecodes.h" |
10 #include "src/objects.h" | 10 #include "src/objects.h" |
11 | 11 |
12 namespace v8 { | 12 namespace v8 { |
13 namespace internal { | 13 namespace internal { |
14 namespace interpreter { | 14 namespace interpreter { |
15 | 15 |
16 class BytecodeArrayIterator { | 16 class BytecodeArrayIterator { |
17 public: | 17 public: |
18 explicit BytecodeArrayIterator(Handle<BytecodeArray> bytecode_array); | 18 explicit BytecodeArrayIterator(Handle<BytecodeArray> bytecode_array); |
19 | 19 |
20 void Advance(); | 20 void Advance(); |
21 bool done() const; | 21 bool done() const; |
22 Bytecode current_bytecode() const; | 22 Bytecode current_bytecode() const; |
| 23 int current_offset() const { return bytecode_offset_; } |
23 const Handle<BytecodeArray>& bytecode_array() const { | 24 const Handle<BytecodeArray>& bytecode_array() const { |
24 return bytecode_array_; | 25 return bytecode_array_; |
25 } | 26 } |
26 | 27 |
27 int8_t GetSmi8Operand(int operand_index) const; | 28 int8_t GetSmi8Operand(int operand_index) const; |
28 int GetIndexOperand(int operand_index) const; | 29 int GetIndexOperand(int operand_index) const; |
29 Register GetRegisterOperand(int operand_index) const; | 30 Register GetRegisterOperand(int operand_index) const; |
30 Handle<Object> GetConstantForIndexOperand(int operand_index) const; | 31 Handle<Object> GetConstantForIndexOperand(int operand_index) const; |
31 | 32 |
32 // Get the raw byte for the given operand. Note: you should prefer using the | 33 // Get the raw byte for the given operand. Note: you should prefer using the |
33 // typed versions above which cast the return to an appropriate type. | 34 // typed versions above which cast the return to an appropriate type. |
34 uint8_t GetRawOperand(int operand_index, OperandType operand_type) const; | 35 uint8_t GetRawOperand(int operand_index, OperandType operand_type) const; |
35 | 36 |
36 private: | 37 private: |
37 Handle<BytecodeArray> bytecode_array_; | 38 Handle<BytecodeArray> bytecode_array_; |
38 int bytecode_offset_; | 39 int bytecode_offset_; |
39 | 40 |
40 DISALLOW_COPY_AND_ASSIGN(BytecodeArrayIterator); | 41 DISALLOW_COPY_AND_ASSIGN(BytecodeArrayIterator); |
41 }; | 42 }; |
42 | 43 |
43 } // namespace interpreter | 44 } // namespace interpreter |
44 } // namespace internal | 45 } // namespace internal |
45 } // namespace v8 | 46 } // namespace v8 |
46 | 47 |
47 #endif // V8_INTERPRETER_BYTECODE_GRAPH_ITERATOR_H_ | 48 #endif // V8_INTERPRETER_BYTECODE_GRAPH_ITERATOR_H_ |
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