package MooseX::AttributeHelpers::Collection::Array;
use Moose;
-use Moose::Util::TypeConstraints;
our $VERSION = '0.01';
our $AUTHORITY = 'cpan:STEVAN';
-extends 'Moose::Meta::Attribute';
-
-my %METHOD_CONSTRUCTORS = (
- 'push' => sub {
- my $attr = shift;
- return sub {
- my $instance = shift;
- push @{$attr->get_value($instance)} => @_;
- };
- },
- 'pop' => sub {
- my $attr = shift;
- return sub { pop @{$attr->get_value($_[0])} };
- },
- 'unshift' => sub {
- my $attr = shift;
- return sub {
- my $instance = shift;
- unshift @{$attr->get_value($instance)} => @_;
- };
- },
- 'shift' => sub {
- my $attr = shift;
- return sub { shift @{$attr->get_value($_[0])} };
- },
- 'get' => sub {
- my $attr = shift;
- return sub { $attr->get_value($_[0])->[$_[1]] };
- },
- 'set' => sub {
- my $attr = shift;
- return sub { $attr->get_value($_[0])->[$_[1]] = $_[2] };
- },
-);
-
-has 'provides' => (
- is => 'ro',
- isa => subtype('HashRef' => where {
- (exists $METHOD_CONSTRUCTORS{$_} || return) for keys %{$_}; 1;
- }),
- required => 1,
+extends 'MooseX::AttributeHelpers::Base';
+
+has '+method_constructors' => (
+ default => sub {
+ return +{
+ 'push' => sub {
+ my $attr = shift;
+ return sub {
+ my $instance = shift;
+ push @{$attr->get_value($instance)} => @_;
+ };
+ },
+ 'pop' => sub {
+ my $attr = shift;
+ return sub { pop @{$attr->get_value($_[0])} };
+ },
+ 'unshift' => sub {
+ my $attr = shift;
+ return sub {
+ my $instance = shift;
+ unshift @{$attr->get_value($instance)} => @_;
+ };
+ },
+ 'shift' => sub {
+ my $attr = shift;
+ return sub { shift @{$attr->get_value($_[0])} };
+ },
+ 'get' => sub {
+ my $attr = shift;
+ return sub { $attr->get_value($_[0])->[$_[1]] };
+ },
+ 'set' => sub {
+ my $attr = shift;
+ return sub { $attr->get_value($_[0])->[$_[1]] = $_[2] };
+ },
+ 'count' => sub {
+ my $attr = shift;
+ return sub { scalar @{$attr->get_value($_[0])} };
+ },
+ 'empty' => sub {
+ my $attr = shift;
+ return sub { scalar @{$attr->get_value($_[0])} ? 1 : 0 };
+ }
+ }
+ }
);
-has '+$!default' => (required => 1);
-has '+type_constraint' => (required => 1);
-
-before '_process_options' => sub {
- my ($self, %options) = @_;
-
- if (exists $options{provides}) {
- (exists $options{isa})
- || confess "You must define a type with the Array metaclass";
-
- (find_type_constraint($options{isa})->is_subtype_of('ArrayRef'))
- || confess "The type constraint for a Array must be a subtype of ArrayRef";
- }
-};
-
-after 'install_accessors' => sub {
- my $attr = shift;
- my $class = $attr->associated_class;
-
- foreach my $key (keys %{$attr->provides}) {
- (exists $METHOD_CONSTRUCTORS{$key})
- || confess "Unsupported method type ($key)";
- $class->add_method(
- $attr->provides->{$key},
- $METHOD_CONSTRUCTORS{$key}->($attr)
- );
- }
-};
+sub _process_options_for_provides {
+ my ($self, $options) = @_;
+ (exists $options->{isa})
+ || confess "You must define a type with the Array metaclass";
+
+ (find_type_constraint($options->{isa})->is_subtype_of('ArrayRef'))
+ || confess "The type constraint for a Array must be a subtype of ArrayRef";
+}
no Moose;
-no Moose::Util::TypeConstraints;
# register the alias ...
-package Moose::Meta::Attribute::Custom::Collection;
+package Moose::Meta::Attribute::Custom::Collection::Array;
sub register_implementation { 'MooseX::AttributeHelpers::Collection::Array' }