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 54 matching lines @@
 };
 
 
 class FunctionEntry BASE_EMBEDDED {
  public:
   enum {
     kStartPositionIndex,
     kEndPositionIndex,
     kLiteralCountIndex,
     kPropertyCountIndex,
-    kStrictModeIndex,
+    kLanguageModeIndex,
     kSize
   };
 
   explicit FunctionEntry(Vector<unsigned> backing) : backing_(backing) { }
   FunctionEntry() { }
 
   int start_pos() { return backing_[kStartPositionIndex]; }
   int end_pos() { return backing_[kEndPositionIndex]; }
   int literal_count() { return backing_[kLiteralCountIndex]; }
   int property_count() { return backing_[kPropertyCountIndex]; }
-  StrictModeFlag strict_mode_flag() {
-    ASSERT(backing_[kStrictModeIndex] == kStrictMode ||
-           backing_[kStrictModeIndex] == kNonStrictMode);
-    return static_cast<StrictModeFlag>(backing_[kStrictModeIndex]);
+  LanguageMode language_mode() {
+    ASSERT(backing_[kLanguageModeIndex] == CLASSIC_MODE ||
+           backing_[kLanguageModeIndex] == STRICT_MODE ||
+           backing_[kLanguageModeIndex] == EXTENDED_MODE);
+    return static_cast<LanguageMode>(backing_[kLanguageModeIndex]);
   }
 
   bool is_valid() { return !backing_.is_empty(); }
 
  private:
   Vector<unsigned> backing_;
 };
 
 
 class ScriptDataImpl : public ScriptData {
@@ skipping 325 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 29 matching lines @@
   FunctionLiteral* ParseLazy(CompilationInfo* info,
                              UC16CharacterStream* source,
                              ZoneScope* zone_scope);
 
   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 285 matching lines @@
  private:
   static const int kTypeSlot = 0;
   static const int kElementsSlot = 1;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_