Changed structure of accessor arguments passing to allow accessor

src/objects.h

 // Copyright 2006-2009 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 4201 matching lines @@
                                                 unsigned chars);
 
   // Identify the map for the external string/symbol with a particular length.
   static inline Map* StringMap(int length);
   static inline Map* SymbolMap(int length);
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(ExternalTwoByteString);
 };
 
 
+// Utility superclass for stack-allocated objects that must be updated
+// on gc.  It provides two ways for the gc to update instances, either

[iposva, 2009/09/30 22:19:05]

gc -> GC

+// iterating or updating after gc.
+class Relocatable BASE_EMBEDDED {
+public:

[iposva, 2009/09/30 22:19:05]

Presubmit Check: Fail

+  inline Relocatable() : prev_(top_) { top_ = this; }
+  virtual ~Relocatable() { ASSERT_EQ(top_, this); top_ = prev_; }

[iposva, 2009/09/30 22:19:05]

Presubmit Check: Fail

+  virtual void IterateInstance(ObjectVisitor* v) { }
+  virtual void PostGarbageCollection() { }
+
+  static void PostGarbageCollectionProcessing();
+  static int ArchiveSpacePerThread();
+  static char* ArchiveState(char* to);
+  static char* RestoreState(char* from);
+  static void Iterate(ObjectVisitor* v);
+  static void Iterate(ObjectVisitor* v, Relocatable* top);
+  static char* Iterate(ObjectVisitor* v, char* t);
+private:

[iposva, 2009/09/30 22:19:05]

Presubmit Check: Fail

+  static Relocatable* top_;
+  Relocatable* prev_;
+};
+
+
 // A flat string reader provides random access to the contents of a
 // string independent of the character width of the string.  The handle
 // must be valid as long as the reader is being used.
-class FlatStringReader BASE_EMBEDDED {
+class FlatStringReader : public Relocatable {
  public:
   explicit FlatStringReader(Handle<String> str);
   explicit FlatStringReader(Vector<const char> input);
-  ~FlatStringReader();
-  void RefreshState();
+  void PostGarbageCollection();
   inline uc32 Get(int index);
   int length() { return length_; }
-  static void PostGarbageCollectionProcessing();
  private:
   String** str_;
   bool is_ascii_;
   int length_;
   const void* start_;
-  FlatStringReader* prev_;
-  static FlatStringReader* top_;
 };
 
 
 // Note that StringInputBuffers are not valid across a GC!  To fix this
 // it would have to store a String Handle instead of a String* and
 // AsciiStringReadBlock would have to be modified to use memcpy.
 //
 // StringInputBuffer is able to traverse any string regardless of how
 // deeply nested a sequence of ConsStrings it is made of.  However,
 // performance will be better if deep strings are flattened before they
@@ skipping 607 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_