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#!perl ## no critic (TidyCode)
use strict;
use warnings;
our $VERSION = 0;
use Object::Lazy;
my $object = Object::Lazy->new({
# how to create the real object
build => sub {
return RealClass->new;
},
# do not build at method isa
# isa => 'RealClass',
# or
isa => [qw(RealClass BaseClassOfRealClass)],
# tell me when
logger => sub {
my $at_stack = shift;
() = print "RealClass $at_stack";
},
});
{
my $ok = $object->isa('RealClass');
() = print "$ok = \$object->isa('RealClass');\n";
}
# ask about inheritage
{
my $ok = $object->isa('BaseClassOfRealClass');
() = print "$ok = \$object->isa('BaseClassOfRealClass');\n";
}
# build the real object and call method output
$object->output;
# $Id$
package RealClass;
use parent qw(-norequire BaseClassOfRealClass);
package BaseClassOfRealClass; ## no critic (MultiplePackages)
sub new {
return bless {}, shift;
}
sub output {
() = print "# Method output called!\n";
return;
}
__END__
output:
1 = $object->isa('RealClass');
1 = $object->isa('BaseClassOfRealClass');
RealClass object built at ../lib/Object/Lazy.pm line 35.
Object::Lazy::try {...} () called at D:/Perl/site/lib/Try/Tiny.pm line 81
eval {...} called at D:/Perl/site/lib/Try/Tiny.pm line 72
Try::Tiny::try(CODE(...), Try::Tiny::Catch=REF(...)) called at ../lib/Object/Lazy.pm line 39
Object::Lazy::BUILD_OBJECT(RealClass=HASH(...), REF(...)) called at ../lib/Object/Lazy.pm line 53
Object::Lazy::AUTOLOAD(RealClass=HASH(...)) called at 03_isa.pl line 38
# Method output called!
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