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package MooseX::MethodTraits;
use Moose::Exporter;
use Scalar::Util qw(blessed reftype);
=head1 NAME
MooseX::MethodTraits -
=head1 SYNOPSIS
=head1 DESCRIPTION
=cut
sub _generate_method_creators {
my ($package, $with_traits) = @_;
my $package_meta = Class::MOP::Package->initialize($package);
for my $sub (keys %$with_traits) {
my $spec = $with_traits->{$sub};
my $traits = $spec->{traits} || [];
my $munge = $spec->{munge} || sub {
my $meta = shift;
my $name = shift;
my $method = reftype($_[0]) && reftype($_[0]) eq 'CODE'
? shift : $meta->find_method_by_name($name);
return $method, {@_};
};
my $code = sub {
my ($method, $args) = $munge->(@_);
my $meta = shift;
my $name = shift;
my $superclass = blessed($method) || $meta->method_metaclass;
my $method_metaclass = Moose::Meta::Class->create_anon_class(
superclasses => [$superclass],
roles => $traits,
cache => 1,
);
my $method_meta = $method_metaclass->name->wrap(
$method,
name => $name,
package_name => $meta->name,
);
$meta->add_method($name => $method_meta);
return unless $args;
for my $attr_name (map { $_->meta->get_attribute_list } @$traits) {
next unless exists $args->{$attr_name};
my $attr = $method_meta->meta->find_attribute_by_name($attr_name);
$attr->set_value($method_meta, $args->{$attr_name});
}
};
$package_meta->add_package_symbol('&' . $sub => $code);
}
return keys %$with_traits;
}
# XXX: factor some of this stuff out
sub build_import_methods {
my $class = shift;
my %options = @_;
$options{exporting_package} ||= caller;
if (exists $options{with_traits}) {
my $with_traits = delete $options{with_traits};
my @extra_with_meta = _generate_method_creators(
$options{exporting_package}, $with_traits
);
$options{with_meta} = [
@{ $options{with_meta} || [] },
@extra_with_meta,
];
}
return Moose::Exporter->build_import_methods(%options)
}
sub setup_import_methods {
my $class = shift;
my %options = @_;
$options{exporting_package} ||= caller;
if (exists $options{with_traits}) {
my $with_traits = delete $options{with_traits};
my @extra_with_meta = _generate_method_creators(
$options{exporting_package}, $with_traits
);
$options{with_meta} = [
@{ $options{with_meta} || [] },
@extra_with_meta,
];
}
return Moose::Exporter->setup_import_methods(%options)
}
sub import {
strict->import;
warnings->import;
}
=head1 BUGS
No known bugs.
Please report any bugs through RT: email
C<bug-moosex-methodtraits at rt.cpan.org>, or browse to
L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooseX-MethodTraits>.
=head1 SEE ALSO
=head1 SUPPORT
You can find this documentation for this module with the perldoc command.
perldoc MooseX::MethodTraits
You can also look for information at:
=over 4
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/MooseX-MethodTraits>
=item * CPAN Ratings
L<http://cpanratings.perl.org/d/MooseX-MethodTraits>
=item * RT: CPAN's request tracker
L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooseX-MethodTraits>
=item * Search CPAN
L<http://search.cpan.org/dist/MooseX-MethodTraits>
=back
=head1 AUTHOR
Jesse Luehrs <doy at tozt dot net>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2009 by Jesse Luehrs.
This is free software; you can redistribute it and/or modify it under
the same terms as perl itself.
=cut
1;
|
