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_VISITOR_H_ 6 #define V8_AST_AST_EXPRESSION_VISITOR_H_ 7 8 #include "src/allocation.h" 9 #include "src/ast/ast.h" 10 #include "src/ast/scopes.h" 11 #include "src/effects.h" 12 #include "src/type-info.h" 13 #include "src/types.h" 14 #include "src/zone.h" 15 16 namespace v8 { 17 namespace internal { 18 19 // A Visitor over a CompilationInfo's AST that invokes 20 // VisitExpression on each expression node. 21 22 class AstExpressionVisitor : public AstVisitor { 23 public: 24 AstExpressionVisitor(Isolate* isolate, Expression* root); 25 AstExpressionVisitor(uintptr_t stack_limit, Expression* root); 26 void Run(); 27 28 protected: 29 virtual void VisitExpression(Expression* expression) = 0; depth()30 int depth() { return depth_; } 31 32 private: 33 void VisitDeclarations(ZoneList<Declaration*>* d) override; 34 void VisitStatements(ZoneList<Statement*>* s) override; 35 36 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); 37 38 #define DECLARE_VISIT(type) void Visit##type(type* node) override; 39 AST_NODE_LIST(DECLARE_VISIT) 40 #undef DECLARE_VISIT 41 42 Expression* root_; 43 int depth_; 44 45 DISALLOW_COPY_AND_ASSIGN(AstExpressionVisitor); 46 }; 47 } // namespace internal 48 } // namespace v8 49 50 #endif // V8_AST_AST_EXPRESSION_VISITOR_H_ 51