On Wed, Oct 09, 2002 at 02:34:49PM -0500, James Edward Gray II wrote:
> If I have an object and I want to increase it's functionality by
> "upgrading/promoting" it to a subclass if certain conditions are met
> during a method call, could/should I use something like:
>
> sub some_method {
> my $self = $_[0];
>
> # ...
>
> if (PROMOTE_CONDITION) {
> $_[0] = Subclass->copy_constructor($self);
> }
> }
>
> That will change the reference in the calling code, right?
Right.
> Any reason
> I shouldn't do this?
Not if you know what you are doing.
Presumably your copy constructor is simply reblessing the object and
maybe doing some initialisation. Be careful if your original object had
a destructor.
--
Paul Johnson - [EMAIL PROTECTED]
http://www.pjcj.net
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