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 3 // found in the LICENSE file. 4 5 #ifndef V8_AST_AST_EXPRESSION_REWRITER_H_ 6 #define V8_AST_AST_EXPRESSION_REWRITER_H_ 7 8 #include "src/allocation.h" 9 #include "src/ast/ast.h" 10 #include "src/ast/scopes.h" 11 #include "src/type-info.h" 12 #include "src/zone.h" 13 14 namespace v8 { 15 namespace internal { 16 17 // A rewriting Visitor over a CompilationInfo's AST that invokes 18 // VisitExpression on each expression node. 19 20 class AstExpressionRewriter : public AstVisitor { 21 public: 22 explicit AstExpressionRewriter(Isolate* isolate) : AstVisitor() { 23 InitializeAstRewriter(isolate); 24 } 25 explicit AstExpressionRewriter(uintptr_t stack_limit) : AstVisitor() { 26 InitializeAstRewriter(stack_limit); 27 } 28 ~AstExpressionRewriter() override {} 29 30 void VisitDeclarations(ZoneList<Declaration*>* declarations) override; 31 void VisitStatements(ZoneList<Statement*>* statements) override; 32 void VisitExpressions(ZoneList<Expression*>* expressions) override; 33 34 virtual void VisitObjectLiteralProperty(ObjectLiteralProperty* property); 35 36 protected: 37 virtual bool RewriteExpression(Expression* expr) = 0; 38 39 private: 40 DEFINE_AST_REWRITER_SUBCLASS_MEMBERS(); 41 42 #define DECLARE_VISIT(type) void Visit##type(type* node) override; 43 AST_NODE_LIST(DECLARE_VISIT) 44 #undef DECLARE_VISIT 45 46 DISALLOW_COPY_AND_ASSIGN(AstExpressionRewriter); 47 }; 48 49 } // namespace internal 50 } // namespace v8 51 52 #endif // V8_AST_AST_EXPRESSION_REWRITER_H_ 53