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Re: Re: Extending MIME::Liteby demerphq (Chancellor) |
on Sep 27, 2003 at 13:23 UTC ( [id://294640]=note: print w/replies, xml ) | Need Help?? |
I'm thinking of intercepting the hashref before calling new. So that
becomes something like...
So before MIME::Lite::SMTP even gets called @args has been precleaned as appropriate. This would allow special cases like having a list of SMTP hosts that are tried until one lets us in, or handling authentication, or turning Debug on in Net::SMTP without having to do the ugly Net::SMTP->new(undef,Debug=>1) in the user code (inside MIME::Lite its ok to do this, as in there its unlikely to cause trouble to a newbie). Also I agree quite a bit with your points about positional arguments. The only quibble I have is from Perls flexibility with arguments and weakish typing. You can often extend positional arguments by getting creative with types. For instance the trick above works out because its extremely unlikely that somebody is using a blessed reference as a hostname. In fact I could get a lot more picky and check that the ref is a HASH and that if it is a hash that stringification is not overloaded. This would result in total backwards compatibility while still allowing extension. Cheers, --- demerphq First they ignore you, then they laugh at you, then they fight you, then you win.
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