Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

Re^7: Use of "die" in OO modules

by adrianh (Chancellor)
on Jan 28, 2007 at 21:31 UTC ( #596990=note: print w/replies, xml ) Need Help??

in reply to Re^6: Use of "die" in OO modules
in thread Use of "die" in OO modules

Are you saying that if I eval { die MyExceptionClass->new(...) }; that the $@ variable will contain the instance of MyExceptionClass?

Exactly ;-) From perldoc die:

die() can also be called with a reference argument. If this happens to be trapped within an eval(), $@ contains the reference. This behavior permits a more elaborate exception handling implementation using objects that maintain arbitrary state about the nature of the exception. Such a scheme is sometimes preferable to matching particular string values of $@ using regular expressions.

Replies are listed 'Best First'.
Re^8: Use of "die" in OO modules
by theguvnor (Chaplain) on Jan 30, 2007 at 00:37 UTC

    Awesome.. I tried it and I like it!

    Now I just wish that something like this:

    catch (ThisClass $e) {...} catch (ThatClass $e) {...}
    was built into Perl!!


Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://596990]
[PriNet]: quick question... anyone know how to remove all the existing keys in a %hash ? i've tried several options, but when i re-use the hash, some of the "upper" keys that i don't re-use stick and i can't get them to "remove"
[atcroft]: PriNet: %hash = ();? or foreach my $k ( keys %hash ) { delete $hash{$k}; }?

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (2)
As of 2017-06-28 02:50 GMT
Find Nodes?
    Voting Booth?
    How many monitors do you use while coding?

    Results (619 votes). Check out past polls.