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inc/Class/MOP/Method/Constructor.pm  view on Meta::CPAN

#line 1

package Class::MOP::Method::Constructor;
BEGIN {
  $Class::MOP::Method::Constructor::AUTHORITY = 'cpan:STEVAN';
}
BEGIN {
  $Class::MOP::Method::Constructor::VERSION = '2.0009';
}

use strict;
use warnings;

use Carp         'confess';
use Scalar::Util 'blessed', 'weaken';
use Try::Tiny;

use base 'Class::MOP::Method::Inlined';

sub new {
    my $class   = shift;
    my %options = @_;

    (blessed $options{metaclass} && $options{metaclass}->isa('Class::MOP::Class'))
        || confess "You must pass a metaclass instance if you want to inline"
            if $options{is_inline};

    ($options{package_name} && $options{name})
        || confess "You must supply the package_name and name parameters $Class::MOP::Method::UPGRADE_ERROR_TEXT";

    my $self = $class->_new(\%options);

    # we don't want this creating
    # a cycle in the code, if not
    # needed
    weaken($self->{'associated_metaclass'});

    $self->_initialize_body;

    return $self;
}

sub _new {
    my $class = shift;

    return Class::MOP::Class->initialize($class)->new_object(@_)
        if $class ne __PACKAGE__;

    my $params = @_ == 1 ? $_[0] : {@_};

    return bless {
        # inherited from Class::MOP::Method
        body                 => $params->{body},
        # associated_metaclass => $params->{associated_metaclass}, # overriden
        package_name         => $params->{package_name},
        name                 => $params->{name},
        original_method      => $params->{original_method},

        # inherited from Class::MOP::Generated
        is_inline            => $params->{is_inline} || 0,
        definition_context   => $params->{definition_context},

        # inherited from Class::MOP::Inlined
        _expected_method_class => $params->{_expected_method_class},

        # defined in this subclass
        options              => $params->{options} || {},
        associated_metaclass => $params->{metaclass},
    }, $class;
}

## accessors

sub options              { (shift)->{'options'}              }
sub associated_metaclass { (shift)->{'associated_metaclass'} }

## cached values ...

sub _attributes {
    my $self = shift;
    $self->{'attributes'} ||= [
        sort { $a->name cmp $b->name }
             $self->associated_metaclass->get_all_attributes
    ]
}

## method

sub _initialize_body {
    my $self        = shift;
    my $method_name = '_generate_constructor_method';

    $method_name .= '_inline' if $self->is_inline;

    $self->{'body'} = $self->$method_name;
}