MooseX::StrictConstructor(3pm)

Usage

    package My::Class;
    use Moose;
    use MooseX::StrictConstructor;
    has 'size' => ( is => 'ro' );
    # then later ...
    # this blows up because color is not a known attribute
    My::Class->new( size => 5, color => 'blue' );

Version

version 0.21

Overview

Simply loading this module makes your constructors "strict". If your constructor is called with an attribute init argument that your class does not declare, then it calls "Moose->throw_error()". This is a great way to catch small typos.

Subverting Strictness

You may find yourself wanting to have your constructor accept a parameter which does not correspond to an attribute.

In that case, you'll probably also be writing a "BUILD()" or "BUILDARGS()" method to deal with that parameter. In a "BUILDARGS()" method, you can simply make sure that this parameter is not included in the hash reference you return. Otherwise, in a "BUILD()" method, you can delete it from the hash reference of parameters.

  sub BUILD {
      my $self   = shift;
      my $params = shift;
      if ( delete $params->{do_something} ) {
          ...
      }
  }

Source

The source code repository for MooseX-StrictConstructor can be found at <https://github.com/moose/MooseX-StrictConstructor>.

Donations

If you'd like to thank me for the work I've done on this module, please consider making a "donation" to me via PayPal. I spend a lot of free time creating free software, and would appreciate any support you'd care to offer.

Please note that I am not suggesting that you must do this in order for me to continue working on this particular software. I will continue to do so, inasmuch as I have in the past, for as long as it interests me.

Similarly, a donation made in this way will probably not make me work on this software much more, unless I get so many donations that I can consider working on free software full time (let's all have a chuckle at that together).

To donate, log into PayPal and send money to [email protected], or use the button at <http://www.urth.org/~autarch/fs-donation.html>.

Contributors

`•`	Jesse Luehrs <[email protected]>
`•`	Karen Etheridge <[email protected]>
`•`	Ricardo Signes <[email protected]>

Copyright and license

This is free software, licensed under:

  The Artistic License 2.0 (GPL Compatible)

The full text of the license can be found in the LICENSE file included with this distribution.

Releases

9 releases since Debian 5.0 (Lenny); the text changed 4 times.