Line data    Source code

       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/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             : // This AstVistor is not final, and provides the AstVisitor methods as virtual
      21             : // methods so they can be specialized by subclasses.
      22             : class AstExpressionRewriter : public AstVisitor<AstExpressionRewriter> {
      23             :  public:
      24             :   explicit AstExpressionRewriter(Isolate* isolate) {
      25             :     InitializeAstRewriter(isolate);
      26             :   }
      27        3276 :   explicit AstExpressionRewriter(uintptr_t stack_limit) {
      28             :     InitializeAstRewriter(stack_limit);
      29             :   }
      30        3276 :   virtual ~AstExpressionRewriter() {}
      31             : 
      32             :   virtual void VisitDeclarations(Declaration::List* declarations);
      33             :   virtual void VisitStatements(ZoneList<Statement*>* statements);
      34             :   virtual void VisitExpressions(ZoneList<Expression*>* expressions);
      35             : 
      36             :   virtual void VisitLiteralProperty(LiteralProperty* property);
      37             : 
      38             :  protected:
      39             :   virtual bool RewriteExpression(Expression* expr) = 0;
      40             : 
      41             :  private:
      42       68188 :   DEFINE_AST_REWRITER_SUBCLASS_MEMBERS();
      43             : 
      44             : #define DECLARE_VISIT(type) virtual void Visit##type(type* node);
      45             :   AST_NODE_LIST(DECLARE_VISIT)
      46             : #undef DECLARE_VISIT
      47             : 
      48             :   DISALLOW_COPY_AND_ASSIGN(AstExpressionRewriter);
      49             : };
      50             : 
      51             : }  // namespace internal
      52             : }  // namespace v8
      53             : 
      54             : #endif  // V8_AST_AST_EXPRESSION_REWRITER_H_