I somehow find it instructive to do this…
{
package SomeClass;
sub new1 { bless {} }
sub new2 { bless \%hash }
sub does_it_work { print "Yes, it works\n" }
}
$obj1 = SomeClass->new1;
$obj1->does_it_work;
$obj2 = SomeClass->new2;
$obj2->does_it_work;
…to your fine example. Removing all pragmas is intentional. This isn't quality code. It's simple code to make the rudiments of something clearer—to me, at least. I learned something by this reduction.
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