Indirect Get*Scope over parser/parserbase

src/parsing/parser-base.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_PARSING_PARSER_BASE_H
 #define V8_PARSING_PARSER_BASE_H
 
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
 #include "src/base/hashmap.h"
@@ skipping 835 matching lines @@
 
   // Determine precedence of given token.
   static int Precedence(Token::Value token, bool accept_IN) {
     if (token == Token::IN && !accept_IN)
       return 0;  // 0 precedence will terminate binary expression parsing
     return Token::Precedence(token);
   }
 
   typename Traits::Type::Factory* factory() { return &ast_node_factory_; }
 
+  DeclarationScope* GetReceiverScope() const {
+    return scope()->GetReceiverScope();
+  }
   LanguageMode language_mode() { return scope()->language_mode(); }
   bool is_generator() const { return function_state_->is_generator(); }
   bool is_async_function() const {
     return function_state_->is_async_function();
   }
   bool is_resumable() const { return function_state_->is_resumable(); }
 
   // Report syntax errors.
   void ReportMessage(MessageTemplate::Template message, const char* arg = NULL,
                      ParseErrorType error_type = kSyntaxError) {
@@ skipping 2223 matching lines @@
       ParseMemberExpressionContinuation(result, is_async, classifier, CHECK_OK);
   return result;
 }
 
 template <class Traits>
 typename ParserBase<Traits>::ExpressionT
 ParserBase<Traits>::ParseSuperExpression(bool is_new, bool* ok) {
   Expect(Token::SUPER, CHECK_OK);
   int pos = position();
 
-  DeclarationScope* scope = this->scope()->GetReceiverScope();
+  DeclarationScope* scope = GetReceiverScope();
   FunctionKind kind = scope->function_kind();
   if (IsConciseMethod(kind) || IsAccessorFunction(kind) ||
       IsClassConstructor(kind)) {
     if (peek() == Token::PERIOD || peek() == Token::LBRACK) {
       scope->RecordSuperPropertyUsage();
       return this->NewSuperPropertyReference(factory(), pos);
     }
     // new super() is never allowed.
     // super() is only allowed in derived constructor
     if (!is_new && peek() == Token::LPAREN && IsSubclassConstructor(kind)) {
@@ skipping 21 matching lines @@
     *ok = false;
   }
 }
 
 template <class Traits>
 typename ParserBase<Traits>::ExpressionT
 ParserBase<Traits>::ParseNewTargetExpression(bool* ok) {
   int pos = position();
   ExpectMetaProperty(CStrVector("target"), "new.target", pos, CHECK_OK);
 
-  if (!scope()->GetReceiverScope()->is_function_scope()) {
+  if (!GetReceiverScope()->is_function_scope()) {
     ReportMessageAt(scanner()->location(),
                     MessageTemplate::kUnexpectedNewTarget);
     *ok = false;
     return this->EmptyExpression();
   }
 
   return this->NewTargetExpression(factory(), pos);
 }
 
 template <class Traits>
@@ skipping 541 matching lines @@
     has_seen_constructor_ = true;
     return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H