# from Mattia Barbon
# on Sunday 13 June 2010 01:28:
> subscribe( $sender, 'SignalName', $object, 'MethodName' );
> subscribe( $sender, 'SignalName', \&_function );
Could this be a method?
$sender->subscribe(SignalName => $object, 'MethodName');
$sender->subscribe(SignalName => sub {...});
Also, maybe a way to unsubscribe from all of the subscriptions
$sender->unsubscribe('SignalName');
and perhaps a way to get at "what is subscribed" without having to
reconstruct the signatures (e.g. still in scope, etc.)
foreach my $sig ($sender->subscriptions('SignalName')) {
$sender->unsubscribe(SignalName => $sig) if some_condition($sig);
}
Where $sig might be a string of "$object_identifier|MethodName" or
something like that.
In general, this doesn't look very similar to signals/slots (which is
probably a good thing.) The Qt signals/slots model is miserably
polluted with notions of alternate type signatures for the slots and
feels like bashing my head against a wall of C++ to work around the
compile-time type signature checking. What you have proposed may be
better named "pub/sub" -- except I don't see a publish API here.
--Eric
--
To a database person, every nail looks like a thumb.
--Jamie Zawinski
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