MooseX::StrictConstructor − Make your object constructors blow up on unknown attributes
version 0.19
package My::Class; use Moose; use MooseX::StrictConstructor; has 'size' => ...; # then later ... # this blows up because color is not a known attribute My::Class−>new( size => 5, color => 'blue' );
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} ) { ... } }
Please report any bugs or feature requests to "bug−moosex−strictconstructor AT rt DOT cpan DOT org", or through the web interface at <http://rt.cpan.org>. I will be notified, and then you’ll automatically be notified of progress on your bug as I make changes.
Dave Rolsky <autarch AT urth DOT org>
This software is Copyright (c) 2012 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)