Introduce extended mode.

src/parser.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 58 matching lines @@
 
 class FunctionEntry BASE_EMBEDDED {
  public:
   explicit FunctionEntry(Vector<unsigned> backing) : backing_(backing) { }
   FunctionEntry() : backing_(Vector<unsigned>::empty()) { }
 
   int start_pos() { return backing_[kStartPosOffset]; }
   int end_pos() { return backing_[kEndPosOffset]; }
   int literal_count() { return backing_[kLiteralCountOffset]; }
   int property_count() { return backing_[kPropertyCountOffset]; }
-  StrictModeFlag strict_mode_flag() {
-    ASSERT(backing_[kStrictModeOffset] == kStrictMode ||
-           backing_[kStrictModeOffset] == kNonStrictMode);
-    return static_cast<StrictModeFlag>(backing_[kStrictModeOffset]);
+  LanguageMode language_mode() {
+    ASSERT(backing_[kLanguageModeOffset] == CLASSIC_MODE ||
+           backing_[kLanguageModeOffset] == STRICT_MODE ||
+           backing_[kLanguageModeOffset] == EXTENDED_MODE);
+    return static_cast<LanguageMode>(backing_[kLanguageModeOffset]);
   }
 
   bool is_valid() { return backing_.length() > 0; }
 
   static const int kSize = 5;
 
  private:
   Vector<unsigned> backing_;
   static const int kStartPosOffset = 0;
   static const int kEndPosOffset = 1;
   static const int kLiteralCountOffset = 2;
   static const int kPropertyCountOffset = 3;
-  static const int kStrictModeOffset = 4;
+  static const int kLanguageModeOffset = 4;
 };
 
 
 class ScriptDataImpl : public ScriptData {
  public:
   explicit ScriptDataImpl(Vector<unsigned> store)
       : store_(store),
         owns_store_(true) { }
 
   // Create an empty ScriptDataImpl that is guaranteed to not satisfy
@@ skipping 319 matching lines @@
  public:
   Parser(Handle<Script> script,
          bool allow_natives_syntax,
          v8::Extension* extension,
          ScriptDataImpl* pre_data);
   virtual ~Parser() { }
 
   // Returns NULL if parsing failed.
   FunctionLiteral* ParseProgram(Handle<String> source,
                                 bool in_global_context,
-                                StrictModeFlag strict_mode);
+                                LanguageMode language_mode);
 
   FunctionLiteral* ParseLazy(CompilationInfo* info);
 
   void ReportMessageAt(Scanner::Location loc,
                        const char* message,
                        Vector<const char*> args);
   void ReportMessageAt(Scanner::Location loc,
                        const char* message,
                        Vector<Handle<String> > args);
   void SetHarmonyScoping(bool block_scoping);
@@ skipping 24 matching lines @@
     kHasInitializers,
     kHasNoInitializers
   };
 
   Isolate* isolate() { return isolate_; }
   Zone* zone() { return isolate_->zone(); }
 
   // Called by ParseProgram after setting up the scanner.
   FunctionLiteral* DoParseProgram(Handle<String> source,
                                   bool in_global_context,
-                                  StrictModeFlag strict_mode,
+                                  LanguageMode language_mode,
                                   ZoneScope* zone_scope);
 
   // Report syntax error
   void ReportUnexpectedToken(Token::Value token);
   void ReportInvalidPreparseData(Handle<String> name, bool* ok);
   void ReportMessage(const char* message, Vector<const char*> args);
 
   bool inside_with() const { return top_scope_->inside_with(); }
   Scanner& scanner()  { return scanner_; }
   Mode mode() const { return mode_; }
@@ skipping 287 matching lines @@
  private:
   static const int kTypeSlot = 0;
   static const int kElementsSlot = 1;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_