On Dec 23, 2004, at 10:06 AM, Chris Dolan wrote:
Personally, I prefer chained methods. However, the major flaw is that
they must always return $self, or else you get the "Can't call method
"foo" on an undefined value" fatal error. This means that once MB
methods are advertised as chained, they can't ever be switched to
returning anything but $self without breaking compatibility and
causing older MB scripts to die() with the above error.
If M::B throws exceptions, then there's no reason not to always return
$self.
This is just as problematic as chained methods. If we advocate this
syntax, then we must ensure that new() never returns undef, or there
will be script crashes out there.
Good point.
Regards,
David
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