Re^2: defined &{ $pkg . '::foo' } vs. $pkg->can( 'foo' )

You almost always want to use exists &subname rather than defined &subname; there's no advantage in excluding declared-but-not-defined subs.

Hmmm... I don't see how including declared-but-not-defined subs could be a good idea either for the particular application I had in mind or for the one I cited.

the lowliest monk

Comment on Re^2: defined &{ $pkg . '::foo' } vs. $pkg->can( 'foo' )

Replies are listed 'Best First'.
Re^3: defined &{ $pkg . '::foo' } vs. $pkg->can( 'foo' ) by ysth (Canon) on Jul 15, 2005 at 20:26 UTC
I don't see why. Pre-declaring subs is the responsible way to use AUTOLOAD. Why would you want to disallow it in your delegatees? Anyway, this qualifies as a difference between ->can and defined&.	[reply]
Re^4: defined &{ $pkg . '::foo' } vs. $pkg->can( 'foo' ) by tlm (Prior) on Jul 15, 2005 at 20:48 UTC
Pre-declaring subs is the responsible way to use AUTOLOAD. I wasn't aware of this convention. Good to know. Thanks. the lowliest monk	[reply]