use Moose::Role;
use Moose::Util::TypeConstraints;
-our $VERSION = '0.04';
+our $VERSION = '0.22';
+$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
requires 'helper_type';
default => sub {{}}
);
+has 'curries' => (
+ is => 'ro',
+ isa => 'HashRef',
+ default => sub {{}}
+);
# these next two are the possible methods
# you can use in the 'provides' map.
# provide a Class or Role which we can
# collect the method providers from
-has 'method_provider' => (
- is => 'ro',
- isa => 'ClassName',
- predicate => 'has_method_provider',
-);
+
+# requires_attr 'method_provider'
# or you can provide a HASH ref of anon subs
# yourself. This will also collect and store
return +{
map {
$_ => $method_provider->get_method($_)
- } $method_provider->get_method_list
+ }
+ grep { $_ ne 'meta' } $method_provider->get_method_list
};
},
);
# extend the parents stuff to make sure
# certain bits are now required ...
-has '+$!default' => (required => 1);
+has '+default' => (required => 1);
has '+type_constraint' => (required => 1);
## Methods called prior to instantiation
## methods called after instantiation
-# this confirms that provides has
-# all valid possibilities in it
sub check_provides_values {
my $self = shift;
(exists $method_constructors->{$key})
|| confess "$key is an unsupported method type";
}
+
+ foreach my $key (keys %{$self->curries}) {
+ (exists $method_constructors->{$key})
+ || confess "$key is an unsupported method type";
+ }
+}
+
+sub _curry {
+ my $self = shift;
+ my $code = shift;
+
+ my @args = @_;
+ return sub {
+ my $self = shift;
+ $code->($self, @args, @_)
+ };
+}
+
+sub _curry_sub {
+ my $self = shift;
+ my $body = shift;
+ my $code = shift;
+
+ return sub {
+ my $self = shift;
+ $code->($self, $body, @_)
+ };
}
after 'install_accessors' => sub {
my $class_name = $class->name;
+ while (my ($constructor, $constructed) = each %{$attr->curries}) {
+ my $method_code;
+ while (my ($curried_name, $curried_arg) = each(%$constructed)) {
+ if ($class->has_method($curried_name)) {
+ confess
+ "The method ($curried_name) already ".
+ "exists in class (" . $class->name . ")";
+ }
+ my $body = $method_constructors->{$constructor}->(
+ $attr,
+ $attr_reader,
+ $attr_writer,
+ );
+
+ if (ref $curried_arg eq 'ARRAY') {
+ $method_code = $attr->_curry($body, @$curried_arg);
+ }
+ elsif (ref $curried_arg eq 'CODE') {
+ $method_code = $attr->_curry_sub($body, $curried_arg);
+ }
+ else {
+ confess "curries parameter must be ref type ARRAY or CODE";
+ }
+
+ my $method = MooseX::AttributeHelpers::Meta::Method::Curried->wrap(
+ $method_code,
+ package_name => $class_name,
+ name => $curried_name,
+ );
+
+ $attr->associate_method($method);
+ $class->add_method($curried_name => $method);
+ }
+ }
+
foreach my $key (keys %{$attr->provides}) {
my $method_name = $attr->provides->{$key};
after 'remove_accessors' => sub {
my $attr = shift;
my $class = $attr->associated_class;
+
+ # provides accessors
foreach my $key (keys %{$attr->provides}) {
my $method_name = $attr->provides->{$key};
my $method = $class->get_method($method_name);
if blessed($method) &&
$method->isa('MooseX::AttributeHelpers::Meta::Method::Provided');
}
+
+ # curries accessors
+ foreach my $key (keys %{$attr->curries}) {
+ my $method_name = $attr->curries->{$key};
+ my $method = $class->get_method($method_name);
+ $class->remove_method($method_name)
+ if blessed($method) &&
+ $method->isa('MooseX::AttributeHelpers::Meta::Method::Provided');
+ }
};
no Moose::Role;
1;
+__END__
+
+=head1 NAME
+
+MooseX::AttributeHelpers::Trait::Base - base role for helpers
+
+=head1 METHODS
+
+=head2 check_provides_values
+
+Confirms that provides (and curries) has all valid possibilities in it.
+
+=head2 process_options_for_provides
+
+Ensures that the type constraint (C<isa>) matches the helper type.
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 AUTHORS
+
+Yuval Kogman
+
+Shawn M Moore
+
+Jesse Luehrs
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2007-2009 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut