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| 1 // Copyright 2014 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_AST_THIS_ACCESS_VISITOR_H_ |
| 6 #define V8_AST_THIS_ACCESS_VISITOR_H_ |
| 7 #include "src/ast.h" |
| 8 |
| 9 namespace v8 { |
| 10 namespace internal { |
| 11 |
| 12 class AstThisAccessVisitor : public AstVisitor { |
| 13 public: |
| 14 explicit AstThisAccessVisitor(Zone* zone); |
| 15 |
| 16 bool UsesThis() { return uses_this_; } |
| 17 |
| 18 #define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
| 19 AST_NODE_LIST(DECLARE_VISIT) |
| 20 #undef DECLARE_VISIT |
| 21 |
| 22 private: |
| 23 bool uses_this_; |
| 24 |
| 25 void VisitIfNotNull(AstNode* node) { |
| 26 if (node != NULL) Visit(node); |
| 27 } |
| 28 |
| 29 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); |
| 30 DISALLOW_COPY_AND_ASSIGN(AstThisAccessVisitor); |
| 31 }; |
| 32 } |
| 33 } // namespace v8::intrenal |
| 34 #endif // V8_AST_THIS_ACCESS_VISITOR_H_ |
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