++ed by:
STEVAN DHOSS AAR ARPI MINIMAL

17 PAUSE users
16 non-PAUSE users.

Carlos Lima
and 1 contributors

Name

Mo::default - Adds the default feature to Mo's has

Synopsis

    use Mo qw'default';
    has job => ( default => 'Killer' );
    has name => ( default => sub { 'Joe' } );
    has age => 42;
    has colors => ['green', 'blue'];

Description

Adds the default parameter to has, which expects a value. If the value is a code ref, it is called to produce the default. If the value is a hash or array ref, then a shallow copy is made for the default. If there is an odd number of arguments after the attribute name, then the first value is the default.

These 3 lines are the same:

    has things => default => sub {+{}};
    has things => default => {};
    has things => {};

Currently default is always applied lazily.