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.
Moose->throw_error()
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.
BUILD()
BUILDARGS()
sub BUILD { my $self = shift; my $params = shift; if ( delete $params->{do_something} ) { ... } }
Please report any bugs or feature requests to bug-moosex-strictconstructor@rt.cpan.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.
bug-moosex-strictconstructor@rt.cpan.org
Dave Rolsky <autarch@urth.org>
This software is Copyright (c) 2012 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)
To install MooseX::StrictConstructor, copy and paste the appropriate command in to your terminal.
cpanm
cpanm MooseX::StrictConstructor
CPAN shell
perl -MCPAN -e shell install MooseX::StrictConstructor
For more information on module installation, please visit the detailed CPAN module installation guide.