// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef V8_AST_EXPRESSION_VISITOR_H_ #define V8_AST_EXPRESSION_VISITOR_H_ #include "src/allocation.h" #include "src/ast.h" #include "src/effects.h" #include "src/scopes.h" #include "src/type-info.h" #include "src/types.h" #include "src/zone.h" namespace v8 { namespace internal { // A Visitor over a CompilationInfo's AST that invokes // VisitExpression on each expression node. class AstExpressionVisitor : public AstVisitor { public: AstExpressionVisitor(Isolate* isolate, FunctionLiteral* root); void Run(); protected: virtual void VisitExpression(Expression* expression) = 0; int depth() { return depth_; } private: void VisitDeclarations(ZoneList<Declaration*>* d) override; void VisitStatements(ZoneList<Statement*>* s) override; DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); #define DECLARE_VISIT(type) virtual void Visit##type(type* node) override; AST_NODE_LIST(DECLARE_VISIT) #undef DECLARE_VISIT FunctionLiteral* root_; int depth_; DISALLOW_COPY_AND_ASSIGN(AstExpressionVisitor); }; } // namespace internal } // namespace v8 #endif // V8_AST_EXPRESSION_VISITOR_H_