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Accessor.pm	10.02 KB	-rw-rw-rw-
Constructor.pm	5.25 KB	-rw-rw-rw-
Generated.pm	2.61 KB	-rw-rw-rw-
Inlined.pm	4.14 KB	-rw-rw-rw-
Meta.pm	4.16 KB	-rw-rw-rw-
Wrapped.pm	8.48 KB	-rw-rw-rw-

Code Editor : Constructor.pm

package Class::MOP::Method::Constructor;
our $VERSION = '2.2013';

use strict;
use warnings;

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

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

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

(blessed $options{metaclass} && $options{metaclass}->isa('Class::MOP::Class'))
        || $class->_throw_exception( MustSupplyAMetaclass => params => \%options,
                                                    class  => $class
                          )
            if $options{is_inline};

($options{package_name} && $options{name})
        || $class->_throw_exception( MustSupplyPackageNameAndName => params => \%options,
                                                            class  => $class
                          );

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}, # overridden
        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'} }

## 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;
}

sub _eval_environment {
    my $self = shift;
    return $self->associated_metaclass->_eval_environment;
}

sub _generate_constructor_method {
    return sub { Class::MOP::Class->initialize(shift)->new_object(@_) }
}

sub _generate_constructor_method_inline {
    my $self = shift;

my $meta = $self->associated_metaclass;

my @source = (
        'sub {',
            $meta->_inline_new_object,
        '}',
    );

warn join("\n", @source) if $self->options->{debug};

my $code = try {
        $self->_compile_code(\@source);
    }
    catch {
        my $source = join("\n", @source);
        $self->_throw_exception( CouldNotEvalConstructor => constructor_method => $self,
                                                    source             => $source,
                                                    error              => $_
                       );
    };

return $code;
}

# ABSTRACT: Method Meta Object for constructors

__END__

=pod

=encoding UTF-8

=head1 NAME

Class::MOP::Method::Constructor - Method Meta Object for constructors

=head1 VERSION

version 2.2013

=head1 SYNOPSIS

use Class::MOP::Method::Constructor;

my $constructor = Class::MOP::Method::Constructor->new(
      metaclass => $metaclass,
      options   => {
          debug => 1, # this is all for now
      },
  );

# calling the constructor ...
  $constructor->body->execute($metaclass->name, %params);

=head1 DESCRIPTION

This is a subclass of L<Class::MOP::Method> which generates
constructor methods.

=head1 METHODS

=over 4

=item B<< Class::MOP::Method::Constructor->new(%options) >>

This creates a new constructor object. It accepts a hash reference of
options.

=over 8

=item * metaclass

This should be a L<Class::MOP::Class> object. It is required.

=item * name

The method name (without a package name). This is required.

=item * package_name

The package name for the method. This is required.

=item * is_inline

This indicates whether or not the constructor should be inlined. This
defaults to false.

=back

=item B<< $metamethod->is_inline >>

Returns a boolean indicating whether or not the constructor is
inlined.

=item B<< $metamethod->associated_metaclass >>

This returns the L<Class::MOP::Class> object for the method.

=back

=head1 AUTHORS

=over 4

=item *

Stevan Little <stevan.little@iinteractive.com>

=item *

Dave Rolsky <autarch@urth.org>

=item *

Jesse Luehrs <doy@tozt.net>

=item *

Shawn M Moore <code@sartak.org>

=item *

יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>

=item *

Karen Etheridge <ether@cpan.org>

=item *

Florian Ragwitz <rafl@debian.org>

=item *

Hans Dieter Pearcey <hdp@weftsoar.net>

=item *

Chris Prather <chris@prather.org>

=item *

Matt S Trout <mst@shadowcat.co.uk>

=back

=head1 COPYRIGHT AND LICENSE

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut

${this.title}

Code Editor : Constructor.pm