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

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 9197466e85e4564cfe29e38e814e4865e5c06a64..a658cc21a49fb78f568f2cb4c6d4467c9d156046 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -4623,6 +4623,11 @@ class JSArray: public JSObject {
   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.