AstNumberingVisitor does the work of AstConstructionVisitor

src/preparser.h

 // Copyright 2012 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_PREPARSER_H
 #define V8_PREPARSER_H
 
 #include "src/v8.h"
 
 #include "src/bailout-reason.h"
@@ skipping 787 matching lines @@
   // Dummy implementation for making expression->somefunc() work in both Parser
   // and PreParser.
   PreParserExpression* operator->() { return this; }
 
   // More dummy implementations of things PreParser doesn't need to track:
   void set_index(int index) {}  // For YieldExpressions
   void set_parenthesized() {}
 
   int position() const { return RelocInfo::kNoPosition; }
   void set_function_token_position(int position) {}
-  void set_ast_properties(int* ast_properties) {}
-  void set_dont_optimize_reason(BailoutReason dont_optimize_reason) {}
 
  private:
   enum Type {
     kExpression,
     kIdentifierExpression,
     kStringLiteralExpression,
     kBinaryOperationExpression
   };
 
   enum Parenthesization {
@@ skipping 261 matching lines @@
       int position) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewClassLiteral(PreParserIdentifier name,
                                       PreParserExpression extends,
                                       PreParserExpression constructor,
                                       PreParserExpressionList properties,
                                       int start_position, int end_position) {
     return PreParserExpression::Default();
   }
-
-  // Return the object itself as AstVisitor and implement the needed
-  // dummy method right in this class.
-  PreParserFactory* visitor() { return this; }
-  BailoutReason dont_optimize_reason() { return kNoReason; }
-  int* ast_properties() {
-    static int dummy = 42;
-    return &dummy;
-  }
 };
 
 
 class PreParser;
 
 class PreParserTraits {
  public:
   struct Type {
     // TODO(marja): To be removed. The Traits object should contain all the data
     // it needs.
@@ skipping 1487 matching lines @@
   return this->EmptyExpression();
 }
 
 
 template <class Traits>
 typename ParserBase<Traits>::ExpressionT ParserBase<
     Traits>::ParseArrowFunctionLiteral(int start_pos, ExpressionT params_ast,
                                        bool* ok) {
   typename Traits::Type::ScopePtr scope = this->NewScope(scope_, ARROW_SCOPE);
   typename Traits::Type::StatementList body;
-  typename Traits::Type::AstProperties ast_properties;
-  BailoutReason dont_optimize_reason = kNoReason;
   int num_parameters = -1;
   int materialized_literal_count = -1;
   int expected_property_count = -1;
   int handler_count = 0;
 
   {
     typename Traits::Type::Factory function_factory(this->ast_value_factory());
     FunctionState function_state(&function_state_, &scope_,
                                  Traits::Type::ptr_to_scope(scope),
                                  &function_factory);
@@ skipping 61 matching lines @@
         function_name_loc, eval_args_error_loc, dupe_error_loc, reserved_loc,
         CHECK_OK);
 
     // Validate strict mode.
     if (strict_mode() == STRICT) {
       CheckOctalLiteral(start_pos, scanner()->location().end_pos, CHECK_OK);
     }
 
     if (allow_harmony_scoping() && strict_mode() == STRICT)
       this->CheckConflictingVarDeclarations(scope, CHECK_OK);
-
-    ast_properties = *factory()->visitor()->ast_properties();
-    dont_optimize_reason = factory()->visitor()->dont_optimize_reason();
   }
 
   FunctionLiteralT function_literal = factory()->NewFunctionLiteral(
       this->EmptyIdentifierString(), this->ast_value_factory(), scope, body,
       materialized_literal_count, expected_property_count, handler_count,
       num_parameters, FunctionLiteral::kNoDuplicateParameters,
       FunctionLiteral::ANONYMOUS_EXPRESSION, FunctionLiteral::kIsFunction,
       FunctionLiteral::kNotParenthesized, FunctionKind::kArrowFunction,
       start_pos);
 
   function_literal->set_function_token_position(start_pos);
-  function_literal->set_ast_properties(&ast_properties);
-  function_literal->set_dont_optimize_reason(dont_optimize_reason);
 
   if (fni_ != NULL) this->InferFunctionName(fni_, function_literal);
 
   return function_literal;
 }
 
 
 template <class Traits>
 typename ParserBase<Traits>::ExpressionT ParserBase<Traits>::ParseClassLiteral(
     IdentifierT name, Scanner::Location class_name_location,
@@ skipping 111 matching lines @@
       DCHECK(IsAccessorAccessorConflict(old_type, type));
       // Both accessors of the same type.
       parser()->ReportMessage("accessor_get_set");
     }
     *ok = false;
   }
 }
 } }  // v8::internal
 
 #endif  // V8_PREPARSER_H