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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.h" | 8 #include "src/ast.h" |
9 #include "src/interpreter/bytecode-array-builder.h" | 9 #include "src/interpreter/bytecode-array-builder.h" |
10 #include "src/interpreter/bytecodes.h" | 10 #include "src/interpreter/bytecodes.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 BytecodeGenerator : public AstVisitor { | 16 class BytecodeGenerator : public AstVisitor { |
17 public: | 17 public: |
18 BytecodeGenerator(Isolate* isolate, Zone* zone); | 18 BytecodeGenerator(Isolate* isolate, Zone* zone); |
19 virtual ~BytecodeGenerator(); | 19 virtual ~BytecodeGenerator(); |
20 | 20 |
21 Handle<BytecodeArray> MakeBytecode(CompilationInfo* info); | 21 Handle<BytecodeArray> MakeBytecode(CompilationInfo* info); |
22 | 22 |
23 #define DECLARE_VISIT(type) void Visit##type(type* node) override; | 23 #define DECLARE_VISIT(type) void Visit##type(type* node) override; |
24 AST_NODE_LIST(DECLARE_VISIT) | 24 AST_NODE_LIST(DECLARE_VISIT) |
25 #undef DECLARE_VISIT | 25 #undef DECLARE_VISIT |
26 | 26 |
| 27 // Visiting function for declarations list is overridden. |
| 28 void VisitDeclarations(ZoneList<Declaration*>* declarations) override; |
| 29 |
27 private: | 30 private: |
28 class ControlScope; | 31 class ControlScope; |
29 class ControlScopeForIteration; | 32 class ControlScopeForIteration; |
30 | 33 |
31 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); | 34 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); |
32 | 35 |
33 void VisitArithmeticExpression(BinaryOperation* binop); | 36 void VisitArithmeticExpression(BinaryOperation* binop); |
34 void VisitPropertyLoad(Register obj, Property* expr); | 37 void VisitPropertyLoad(Register obj, Property* expr); |
35 void VisitVariableLoad(Variable* variable); | 38 void VisitVariableLoad(Variable* variable, FeedbackVectorSlot slot); |
| 39 void VisitVariableAssignment(Variable* variable, FeedbackVectorSlot slot); |
36 | 40 |
37 // Dispatched from VisitUnaryOperation. | 41 // Dispatched from VisitUnaryOperation. |
38 void VisitVoid(UnaryOperation* expr); | 42 void VisitVoid(UnaryOperation* expr); |
39 void VisitTypeOf(UnaryOperation* expr); | 43 void VisitTypeOf(UnaryOperation* expr); |
40 void VisitNot(UnaryOperation* expr); | 44 void VisitNot(UnaryOperation* expr); |
41 | 45 |
42 inline BytecodeArrayBuilder* builder() { return &builder_; } | 46 inline BytecodeArrayBuilder* builder() { return &builder_; } |
43 inline Scope* scope() const { return scope_; } | 47 inline Scope* scope() const { return scope_; } |
44 inline void set_scope(Scope* scope) { scope_ = scope; } | 48 inline void set_scope(Scope* scope) { scope_ = scope; } |
45 inline ControlScope* control_scope() const { return control_scope_; } | 49 inline ControlScope* control_scope() const { return control_scope_; } |
46 inline void set_control_scope(ControlScope* scope) { control_scope_ = scope; } | 50 inline void set_control_scope(ControlScope* scope) { control_scope_ = scope; } |
47 inline CompilationInfo* info() const { return info_; } | 51 inline CompilationInfo* info() const { return info_; } |
48 inline void set_info(CompilationInfo* info) { info_ = info; } | 52 inline void set_info(CompilationInfo* info) { info_ = info; } |
| 53 ZoneVector<Handle<Object>>* globals() { return &globals_; } |
49 | 54 |
50 LanguageMode language_mode() const; | 55 LanguageMode language_mode() const; |
51 Strength language_mode_strength() const; | 56 Strength language_mode_strength() const; |
52 int feedback_index(FeedbackVectorSlot slot) const; | 57 int feedback_index(FeedbackVectorSlot slot) const; |
| 58 Register current_context() const; |
53 | 59 |
54 BytecodeArrayBuilder builder_; | 60 BytecodeArrayBuilder builder_; |
55 CompilationInfo* info_; | 61 CompilationInfo* info_; |
56 Scope* scope_; | 62 Scope* scope_; |
| 63 ZoneVector<Handle<Object>> globals_; |
57 ControlScope* control_scope_; | 64 ControlScope* control_scope_; |
| 65 |
| 66 // TODO(rmcilroy): Encapsulate this in an environment object. |
| 67 Register current_context_; |
58 }; | 68 }; |
59 | 69 |
60 } // namespace interpreter | 70 } // namespace interpreter |
61 } // namespace internal | 71 } // namespace internal |
62 } // namespace v8 | 72 } // namespace v8 |
63 | 73 |
64 #endif // V8_INTERPRETER_BYTECODE_GENERATOR_H_ | 74 #endif // V8_INTERPRETER_BYTECODE_GENERATOR_H_ |
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