Hi,

In message "[ruby-talk:8051] Re: String#unfreeze"
    on 00/12/25, Yasushi Shoji <yashi / yashi.com> writes:

|This came up on -list, too.  and, IIRC, you said it'd be possible (or
|easier?) to add #unfreeze if we'd have two freeze, one with
|unfreezable capability and the other with current non-unfreezable
|freeze.

Yes.  That's easier way.  In that case, unfreezable 'freeze' would be
a hidden feature to implement copy-on-write.  But two freeze may
surprise programmers sometimes.

							matz.