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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_GENERATOR_H_ | 5 #ifndef V8_INTERPRETER_BYTECODE_GENERATOR_H_ |
6 #define V8_INTERPRETER_BYTECODE_GENERATOR_H_ | 6 #define V8_INTERPRETER_BYTECODE_GENERATOR_H_ |
7 | 7 |
8 #include "src/ast/ast.h" | 8 #include "src/ast/ast.h" |
9 #include "src/interpreter/bytecode-array-builder.h" | 9 #include "src/interpreter/bytecode-array-builder.h" |
10 #include "src/interpreter/bytecode-label.h" | 10 #include "src/interpreter/bytecode-label.h" |
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30 AST_NODE_LIST(DECLARE_VISIT) | 30 AST_NODE_LIST(DECLARE_VISIT) |
31 #undef DECLARE_VISIT | 31 #undef DECLARE_VISIT |
32 | 32 |
33 // Visiting function for declarations list and statements are overridden. | 33 // Visiting function for declarations list and statements are overridden. |
34 void VisitDeclarations(ZoneList<Declaration*>* declarations); | 34 void VisitDeclarations(ZoneList<Declaration*>* declarations); |
35 void VisitStatements(ZoneList<Statement*>* statments); | 35 void VisitStatements(ZoneList<Statement*>* statments); |
36 | 36 |
37 private: | 37 private: |
38 class AccumulatorResultScope; | 38 class AccumulatorResultScope; |
39 class ContextScope; | 39 class ContextScope; |
40 class ControlResultScope; | |
rmcilroy
2016/08/12 11:15:26
Let's go with TestControlScope and VisitForTest. T
klaasb
2016/08/12 16:00:13
Done.
| |
40 class ControlScope; | 41 class ControlScope; |
41 class ControlScopeForBreakable; | 42 class ControlScopeForBreakable; |
42 class ControlScopeForIteration; | 43 class ControlScopeForIteration; |
43 class ControlScopeForTopLevel; | 44 class ControlScopeForTopLevel; |
44 class ControlScopeForTryCatch; | 45 class ControlScopeForTryCatch; |
45 class ControlScopeForTryFinally; | 46 class ControlScopeForTryFinally; |
46 class ExpressionResultScope; | 47 class ExpressionResultScope; |
47 class EffectResultScope; | 48 class EffectResultScope; |
48 class GlobalDeclarationsBuilder; | 49 class GlobalDeclarationsBuilder; |
49 class RegisterResultScope; | 50 class RegisterResultScope; |
50 class RegisterAllocationScope; | 51 class RegisterAllocationScope; |
52 class BytecodeLabels; | |
53 | |
54 enum class ControlFallthrough; | |
51 | 55 |
52 void GenerateBytecode(); | 56 void GenerateBytecode(); |
53 void GenerateBytecodeBody(); | 57 void GenerateBytecodeBody(); |
54 void FinalizeBytecode(); | 58 void FinalizeBytecode(); |
55 | 59 |
56 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); | 60 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); |
57 | 61 |
58 // Dispatched from VisitBinaryOperation. | 62 // Dispatched from VisitBinaryOperation. |
59 void VisitArithmeticExpression(BinaryOperation* binop); | 63 void VisitArithmeticExpression(BinaryOperation* binop); |
60 void VisitCommaExpression(BinaryOperation* binop); | 64 void VisitCommaExpression(BinaryOperation* binop); |
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156 // Visit a statement and switch scopes, the context is in the accumulator. | 160 // Visit a statement and switch scopes, the context is in the accumulator. |
157 void VisitInScope(Statement* stmt, Scope* scope); | 161 void VisitInScope(Statement* stmt, Scope* scope); |
158 | 162 |
159 // Visitors for obtaining expression result in the accumulator, in a | 163 // Visitors for obtaining expression result in the accumulator, in a |
160 // register, or just getting the effect. | 164 // register, or just getting the effect. |
161 void VisitForAccumulatorValue(Expression* expr); | 165 void VisitForAccumulatorValue(Expression* expr); |
162 void VisitForAccumulatorValueOrTheHole(Expression* expr); | 166 void VisitForAccumulatorValueOrTheHole(Expression* expr); |
163 MUST_USE_RESULT Register VisitForRegisterValue(Expression* expr); | 167 MUST_USE_RESULT Register VisitForRegisterValue(Expression* expr); |
164 void VisitForRegisterValue(Expression* expr, Register destination); | 168 void VisitForRegisterValue(Expression* expr, Register destination); |
165 void VisitForEffect(Expression* expr); | 169 void VisitForEffect(Expression* expr); |
170 void VisitForControl(Expression* expr, BytecodeLabels* then_labels, | |
171 BytecodeLabels* else_labels, | |
172 ControlFallthrough fallthrough); | |
166 | 173 |
167 // Methods for tracking and remapping register. | 174 // Methods for tracking and remapping register. |
168 void RecordStoreToRegister(Register reg); | 175 void RecordStoreToRegister(Register reg); |
169 Register LoadFromAliasedRegister(Register reg); | 176 Register LoadFromAliasedRegister(Register reg); |
170 | 177 |
171 // Initialize an array of temporary registers with consecutive registers. | 178 // Initialize an array of temporary registers with consecutive registers. |
172 template <size_t N> | 179 template <size_t N> |
173 void InitializeWithConsecutiveRegisters(Register (®isters)[N]); | 180 void InitializeWithConsecutiveRegisters(Register (®isters)[N]); |
174 | 181 |
175 inline BytecodeArrayBuilder* builder() const { return builder_; } | 182 inline BytecodeArrayBuilder* builder() const { return builder_; } |
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219 ZoneVector<BytecodeLabel> generator_resume_points_; | 226 ZoneVector<BytecodeLabel> generator_resume_points_; |
220 Register generator_state_; | 227 Register generator_state_; |
221 int loop_depth_; | 228 int loop_depth_; |
222 }; | 229 }; |
223 | 230 |
224 } // namespace interpreter | 231 } // namespace interpreter |
225 } // namespace internal | 232 } // namespace internal |
226 } // namespace v8 | 233 } // namespace v8 |
227 | 234 |
228 #endif // V8_INTERPRETER_BYTECODE_GENERATOR_H_ | 235 #endif // V8_INTERPRETER_BYTECODE_GENERATOR_H_ |
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