Classes: Add support for toString

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 1084 matching lines @@
       FunctionLiteral::FunctionType function_type,
       FunctionLiteral::IsFunctionFlag is_function,
       FunctionLiteral::IsParenthesizedFlag is_parenthesized, FunctionKind kind,
       int position) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewClassLiteral(PreParserIdentifier name,
                                       PreParserExpression extends,
                                       PreParserExpression constructor,
                                       PreParserExpressionList properties,
-                                      int position) {
+                                      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;
@@ skipping 211 matching lines @@
   static PreParserExpression ThisExpression(PreParserScope* scope,
                                             PreParserFactory* factory) {
     return PreParserExpression::This();
   }
 
   static PreParserExpression SuperReference(PreParserScope* scope,
                                             PreParserFactory* factory) {
     return PreParserExpression::Super();
   }
 
-  static PreParserExpression ClassExpression(PreParserIdentifier name,
-                                             PreParserExpression extends,
-                                             PreParserExpression constructor,
-                                             PreParserExpressionList properties,
-                                             int position,
-                                             PreParserFactory* factory) {
+  static PreParserExpression ClassExpression(
+      PreParserIdentifier name, PreParserExpression extends,
+      PreParserExpression constructor, PreParserExpressionList properties,
+      int start_position, int end_position, PreParserFactory* factory) {
     return PreParserExpression::Default();
   }
 
   static PreParserExpression ExpressionFromLiteral(
       Token::Value token, int pos, Scanner* scanner,
       PreParserFactory* factory) {
     return PreParserExpression::Default();
   }
 
   static PreParserExpression ExpressionFromIdentifier(
@@ skipping 1445 matching lines @@
       constructor = this->GetPropertyValue(property);
     } else {
       properties->Add(property, zone());
     }
 
     if (fni_ != NULL) {
       fni_->Infer();
       fni_->Leave();
     }
   }
+
+  int end_pos = peek_position();
   Expect(Token::RBRACE, CHECK_OK);
 
   return this->ClassExpression(name, extends, constructor, properties, pos,
-                               factory());
+                               end_pos + 1, factory());
 }
 
 
 template <typename Traits>
 typename ParserBase<Traits>::ExpressionT
 ParserBase<Traits>::CheckAndRewriteReferenceExpression(
     ExpressionT expression,
     Scanner::Location location, const char* message, bool* ok) {
   if (strict_mode() == STRICT && this->IsIdentifier(expression) &&
       this->IsEvalOrArguments(this->AsIdentifier(expression))) {
@@ skipping 42 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