Mo::option - Allow an attribute to be a chainable, boolean option.
use Mo qw'option';
has this => ( option => 1 );
has that => ( option => 1 );
my $f = Foo->new;
my $this = $f->read_this; # 1
my $that = $f->read_that; # 0
$f->do_something if $f->read_this;
This feature lets an accessor act as an option, that is intended to have a value of 1 or 0. Simply calling the accessor sets the value to 1, and returns the instance so you can chain to the next method.
To get the value of the attribute, call the "read_<name>" accessor. Here's a trick to do that when you are not assigning the value to anything:
To install Mo, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.