--- /dev/null
+
+package MooseX::AttributeHelpers::Base;
+use Moose;
+
+our $VERSION = '0.01';
+our $AUTHORITY = 'cpan:STEVAN';
+
+extends 'Moose::Meta::Attribute';
+
+has 'method_constructors' => (
+ is => 'ro',
+ isa => 'HashRef',
+ default => sub { {} }
+);
+
+has 'provides' => (
+ is => 'ro',
+ isa => 'HashRef',
+ required => 1,
+);
+
+has '+$!default' => (required => 1);
+has '+type_constraint' => (required => 1);
+
+sub _check_provides {
+ my ($self, $provides) = @_;
+ my $method_constructors = $self->method_constructors;
+ foreach my $key (keys %$provides) {
+ (exists $method_constructors->{$key})
+ || confess "$key is an unsupported method type";
+ }
+}
+
+sub _process_options_for_provides {
+ my ($self, $options) = @_;
+ # ...
+}
+
+before '_process_options' => sub {
+ my ($self, %options) = @_;
+
+ if (exists $options{provides}) {
+ $self->_check_provides($options{provides});
+ $self->_process_options_for_provides(\%options);
+ }
+};
+
+after 'install_accessors' => sub {
+ my $attr = shift;
+ my $class = $attr->associated_class;
+
+ my $method_constructors = $attr->method_constructors;
+
+ foreach my $key (keys %{$attr->provides}) {
+ $class->add_method(
+ $attr->provides->{$key},
+ $method_constructors->{$key}->($attr)
+ );
+ }
+};
+
+no Moose;
+no Moose::Util::TypeConstraints;
+
+
+1;
+
+__END__
+
+=pod
+
+=head1 NAME
+
+MooseX::AttributeHelpers::Base
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 METHODS
+
+=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 AUTHOR
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2007 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
\ No newline at end of file
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' }
package MooseX::AttributeHelpers::Collection::Hash;
+use Moose;
our $VERSION = '0.01';
our $AUTHORITY = 'cpan:STEVAN';
+extends 'MooseX::AttributeHelpers::Base';
+
+has '+method_constructors' => (
+ default => sub {
+ return +{
+ '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 $attr = shift;
+ return sub { scalar keys %{$attr->get_value($_[0])} };
+ },
+ 'empty' => sub {
+ my $attr = shift;
+ return sub { scalar keys %{$attr->get_value($_[0])} ? 1 : 0 };
+ }
+ }
+ }
+);
+
+sub _process_options_for_provides {
+ my ($self, $options) = @_;
+ (exists $options->{isa})
+ || confess "You must define a type with the Hash metaclass";
+
+ (find_type_constraint($options->{isa})->is_subtype_of('HashRef'))
+ || confess "The type constraint for a Hash must be a subtype of HashRef";
+}
+
+no Moose;
+
+# register the alias ...
+package Moose::Meta::Attribute::Custom::Collection::Hash;
+sub register_implementation { 'MooseX::AttributeHelpers::Collection::Hash' }
+
+
1;
__END__
package MooseX::AttributeHelpers::Counter;
use Moose;
-use Moose::Util::TypeConstraints;
our $VERSION = '0.01';
our $AUTHORITY = 'cpan:STEVAN';
-extends 'Moose::Meta::Attribute';
-
-my %METHOD_CONSTRUCTORS = (
- inc => sub {
- my $attr = shift;
- return sub { $attr->set_value($_[0], $attr->get_value($_[0]) + 1) };
- },
- dec => sub {
- my $attr = shift;
- return sub { $attr->set_value($_[0], $attr->get_value($_[0]) - 1) };
- },
-);
-
-has 'provides' => (
- is => 'ro',
- isa => subtype('HashRef' => where {
- (exists $METHOD_CONSTRUCTORS{$_} || return) for keys %{$_}; 1;
- }),
- required => 1,
-);
-
-has '+$!default' => (required => 1);
-has '+type_constraint' => (required => 1);
-
-before '_process_options' => sub {
- my ($self, %options) = @_;
-
- if (exists $options{provides}) {
- (exists $options{isa})
- || confess "You must define a type with the Counter metaclass";
-
- (find_type_constraint($options{isa})->is_subtype_of('Num'))
- || confess "The type constraint for a Counter must be a subtype of Num";
+extends 'MooseX::AttributeHelpers::Base';
+
+has '+method_constructors' => (
+ default => sub {
+ return +{
+ inc => sub {
+ my $attr = shift;
+ return sub { $attr->set_value($_[0], $attr->get_value($_[0]) + 1) };
+ },
+ dec => sub {
+ my $attr = shift;
+ return sub { $attr->set_value($_[0], $attr->get_value($_[0]) - 1) };
+ },
+ }
}
-};
+);
-after 'install_accessors' => sub {
- my $attr = shift;
- my $class = $attr->associated_class;
+sub _process_options_for_provides {
+ my ($self, $options) = @_;
+ (exists $options->{isa})
+ || confess "You must define a type with the Counter metaclass";
+
+ (find_type_constraint($options->{isa})->is_subtype_of('Num'))
+ || confess "The type constraint for a Counter must be a subtype of Num";
+}
- 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)
- );
- }
-};
-
no Moose;
-no Moose::Util::TypeConstraints;
# register the alias ...
package Moose::Meta::Attribute::Custom::Counter;
use Moose;
has 'options' => (
- metaclass => 'Collection',
+ metaclass => 'Collection::Array',
is => 'ro',
isa => 'ArrayRef',
default => sub { [] },
--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More no_plan => 1;
+
+BEGIN {
+ use_ok('MooseX::AttributeHelpers');
+}
+
+{
+ package Stuff;
+ use Moose;
+
+ has 'options' => (
+ metaclass => 'Collection::Hash',
+ is => 'ro',
+ isa => 'HashRef',
+ default => sub { {} },
+ provides => {
+ 'set' => 'set_option',
+ 'get' => 'get_option',
+ }
+ );
+}
+
+my $stuff = Stuff->new();
+isa_ok($stuff, 'Stuff');
+
+is_deeply($stuff->options, {}, '... no options yet');
+
+$stuff->set_option(foo => 'bar');
+is_deeply($stuff->options, { foo => 'bar' }, '... got options now');
+
+$stuff->set_option(bar => 'baz');
+is_deeply($stuff->options, { foo => 'bar', bar => 'baz' }, '... got more options now');
+
+is($stuff->get_option('foo'), 'bar', '... got the right option');
+
+
+
projects / gitmo/MooseX-AttributeHelpers.git / commitdiff