note
Arunbear
Not sure that the nested <code>if</code> is actually needed. This code works with string and object exceptions (on 5.8.3 at least):
<code>
use strict;
use warnings;
package Exception;
package IOException;
@IOException::ISA = qw(Exception);
package OtherException;
package YetAnotherException;
package main;
*isa = \&UNIVERSAL::isa;
my @grisly = (
sub { die "AARRGH!\n" },
sub { die bless [], 'Exception' },
sub { die bless [], 'IOException' },
sub { die bless [], 'OtherException' },
sub { die bless [], 'YetAnotherException' },
sub { print "I live\n"; }
);
sub do_something_that_could_die
{
$grisly[0]->(); # or int(rand(@grisly))
}
eval {
do_something_that_could_die();
};
if(isa($@, 'Exception')) {
print ref($@), ' caught';
}
elsif(isa($@, 'OtherException')) {
print ref($@), ' caught';
}
elsif(ref $@) {
# handle any other exception object
print ref($@), ' caught';
}
elsif($@) {
# handle non-object exception
print $@;
}
</code>
<b>Update:</b>
<br> replaced $@->isa('package') calls with calls to UNIVERSAL::isa()
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