Manual Reference Pages - MO::OPTION (3)
Mo::option - Allow an attribute to be a chainable, boolean option.
use Mo qwoption;
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. Heres a
trick to do that when you are not assigning the value to anything:
|perl v5.20.3 ||MO::OPTION (3) ||2014-09-04 |
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