Native construction of RegExp result objects, with in-object index and input.

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 4605 matching lines @@
   void JSArrayVerify();
 #endif
 
   // Number of element slots to pre-allocate for an empty array.
   static const int kPreallocatedArrayElements = 4;
 
   // Layout description.
   static const int kLengthOffset = JSObject::kHeaderSize;
   static const int kSize = kLengthOffset + kPointerSize;
 
+  // RegExp results are arrays with index and input as internal fields.

[Søren Thygesen Gjesse, 2010/04/13 07:22:29]

How about creating the class JSRegExpResult inheriting from JSArray which adds
these two constants and Please add constantskIndexOffset and kInputOffset as
well?

[Lasse Reichstein, 2010/04/13 09:50:56]

Done.

+  static const int kRegExpResultSize = kSize + 2 * kPointerSize;
+  static const int kIndexIndex = 0;
+  static const int kInputIndex = 1;
+
  private:
   // Expand the fixed array backing of a fast-case JSArray to at least
   // the requested size.
   void Expand(int minimum_size_of_backing_fixed_array);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSArray);
 };
 
 
 // An accessor must have a getter, but can have no setter.
@@ skipping 445 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_