package MooseX::AlwaysCoerce;
+# ABSTRACT: Automatically enable coercions for Moose attributes
use strict;
use warnings;
-use namespace::autoclean;
+use namespace::autoclean 0.12;
use Moose ();
+use MooseX::ClassAttribute 0.24 ();
use Moose::Exporter;
+use Moose::Util::MetaRole;
use Carp;
-Moose::Exporter->setup_import_methods (
- with_caller => [ 'has', 'class_has' ]
-);
-
-=head1 NAME
+Moose::Exporter->setup_import_methods;
-MooseX::AlwaysCoerce - Automatically enable coercions for Moose attributes
+=pod
-=head1 VERSION
-
-Version 0.01
-
-=cut
-
-our $VERSION = '0.01';
+=for stopwords coercions
=head1 SYNOPSIS
package MyClass;
use Moose;
- use MooseX::ClassAttribute;
use MooseX::AlwaysCoerce;
use MyTypeLib 'SomeType';
has foo => (is => 'rw', isa => SomeType); # coerce => 1 automatically added
- # same, but you must load MooseX::ClassAttribute *BEFORE*
- # MooseX::AlwaysCoerce
+ # same, MooseX::ClassAttribute is automatically applied
class_has bar => (is => 'rw', isa => SomeType);
=head1 DESCRIPTION
-Have you ever spent an hour or more trying to figure out "WTF, why did my
+Have you ever spent an hour or more trying to figure out "Hey, why did my
coercion not run?" only to find out that you forgot C<< coerce => 1 >> ?
Just load this module in your L<Moose> class and C<< coerce => 1 >> will be
-enabled for every attribute automatically.
+enabled for every attribute and class attribute automatically.
+
+Use C<< coerce => 0 >> to disable a coercion explicitly.
=cut
-sub has {
- push @_, (coerce => 1);
- goto &Moose::has;
+{
+ package MooseX::AlwaysCoerce::Role::Meta::Attribute;
+ use namespace::autoclean;
+ use Moose::Role;
+
+ around should_coerce => sub {
+ my $orig = shift;
+ my $self = shift;
+
+ my $current_val = $self->$orig(@_);
+
+ return $current_val if defined $current_val;
+
+ return 1 if $self->type_constraint && $self->type_constraint->has_coercion;
+ return 0;
+ };
+
+ package MooseX::AlwaysCoerce::Role::Meta::Class;
+ use namespace::autoclean;
+ use Moose::Role;
+ use Moose::Util::TypeConstraints;
+
+ around add_class_attribute => sub {
+ my $next = shift;
+ my $self = shift;
+ my ($what, %opts) = @_;
+
+ if (exists $opts{isa}) {
+ my $type = Moose::Util::TypeConstraints::find_or_parse_type_constraint($opts{isa});
+ $opts{coerce} = 1 if not exists $opts{coerce} and $type->has_coercion;
+ }
+
+ $self->$next($what, %opts);
+ };
}
-sub class_has {
- push @_, (coerce => 1);
- goto &MooseX::ClassAttribute::class_has;
+my (undef, undef, $init_meta) = Moose::Exporter->build_import_methods(
+
+ install => [ qw(import unimport) ],
+
+ class_metaroles => {
+ attribute => ['MooseX::AlwaysCoerce::Role::Meta::Attribute'],
+ class => ['MooseX::AlwaysCoerce::Role::Meta::Class'],
+ },
+
+ role_metaroles => {
+ (Moose->VERSION >= 1.9900
+ ? (applied_attribute => ['MooseX::AlwaysCoerce::Role::Meta::Attribute'])
+ : ()),
+ role => ['MooseX::AlwaysCoerce::Role::Meta::Class'],
+ }
+);
+
+sub init_meta {
+ my ($class, %options) = @_;
+ my $for_class = $options{for_class};
+
+ MooseX::ClassAttribute->import({ into => $for_class });
+
+ # call generated method to do the rest of the work.
+ goto $init_meta;
}
-=head1 AUTHOR
+1;
+# vim:et sts=4 sw=4 tw=0:
+__END__
-Rafael Kitover, C<< <rkitover at cpan.org> >>
+=for Pod::Coverage
+ init_meta
=head1 BUGS
L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooseX-AlwaysCoerce>
+=for stopwords AnnoCPAN
+
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/MooseX-AlwaysCoerce>
My own stupidity, for inspiring me to write this module.
-=head1 COPYRIGHT & LICENSE
-
-Copyright (c) 2009 Rafael Kitover
+=for stopwords Rolsky
-This program is free software; you can redistribute it and/or modify it
-under the same terms as Perl itself.
+Dave Rolsky, for telling me how to do it the L<Moose> way.
=cut
-
-1; # End of MooseX::AlwaysCoerce