NAME MooseX::StrictConstructor - Make your object constructors blow up on unknown attributes SYNOPSIS 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' ); DESCRIPTION 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 "Carp::confess()". 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} ) { ... } } AUTHOR Dave Rolsky, "" BUGS Please report any bugs or feature requests to "bug-moosex-strictconstructor@rt.cpan.org", or through the web interface at . I will be notified, and then you'll automatically be notified of progress on your bug as I make changes. COPYRIGHT & LICENSE Copyright 2007-2008 Dave Rolsky, All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.