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MooseX::StrictConstructor - Make your object constructors blow up on unknown attributes

Author

       Dave Rolsky <autarch@urth.org>

Bugs

       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.

       Bugs may be submitted at <https://github.com/moose/MooseX-StrictConstructor/issues>.

       I am also usually active on IRC as 'autarch' on "irc://irc.perl.org".

Contributors

       •   Jesse Luehrs <doy@tozt.net>

       •   Karen Etheridge <ether@cpan.org>

       •   Ricardo Signes <rjbs@cpan.org>

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 "Moose->throw_error()". This is a
       great way to catch small typos.

   SubvertingStrictness
       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} ) {
                 ...
             }
         }

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 Iamnotsuggestingthatyoumustdothis 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 autarch@urth.org, or use the button at
       <http://www.urth.org/~autarch/fs-donation.html>.

Name

       MooseX::StrictConstructor - Make your object constructors blow up on unknown attributes

Source

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

Synopsis

           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

See Also