package Moose::Object;
use strict;
use MRO::Compat ();
use Scalar::Util ();
use Try::Tiny ();
use if ( not our $__mx_is_compiled ), 'Moose::Meta::Class';
use if ( not our $__mx_is_compiled ), metaclass => 'Moose::Meta::Class';
our $VERSION = '0.91';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
sub new {
my $class = shift;
Carp::cluck 'Calling new() on an instance is deprecated,'
. ' please use (blessed $obj)->new' if Scalar::Util::blessed($class);
my $params = $class->BUILDARGS(@_);
my $real_class = Scalar::Util::blessed($class) || $class;
my $self = Class::MOP::Class->initialize($real_class)->new_object($params);
$self->BUILDALL($params);
return $self;
}
sub BUILDARGS {
my $class = shift;
if ( scalar @_ == 1 ) {
unless ( defined $_[0] && ref $_[0] eq 'HASH' ) {
Class::MOP::class_of($class)->throw_error(
"Single parameters to new() must be a HASH ref",
data => $_[0] );
}
return { %{ $_[0] } };
}
else {
return {@_};
}
}
sub BUILDALL {
# NOTE: we ask Perl if we even
# need to do this first, to avoid
# extra meta level calls
return unless $_[0]->can('BUILD');
my ($self, $params) = @_;
foreach my $method (reverse Class::MOP::class_of($self)->find_all_methods_by_name('BUILD')) {
$method->{code}->execute($self, $params);
}
}
sub DEMOLISHALL {
my $self = shift;
my ($in_global_destruction) = @_;
# NOTE: we ask Perl if we even
# need to do this first, to avoid
# extra meta level calls
return unless $self->can('DEMOLISH');
my @isa;
if ( my $meta = Class::MOP::class_of($self ) ) {
@isa = $meta->linearized_isa;
} else {
# We cannot count on being able to retrieve a previously made
# metaclass, _or_ being able to make a new one during global
# destruction. However, we should still be able to use mro at
# that time (at least tests suggest so ;)
my $class_name = ref $self;
@isa = @{ mro::get_linear_isa($class_name) }
}
foreach my $class (@isa) {
no strict 'refs';
my $demolish = *{"${class}::DEMOLISH"}{CODE};
$self->$demolish($in_global_destruction)
if defined $demolish;
}
}
sub DESTROY {
my $self = shift;
local $?;
Try::Tiny::try {
$self->DEMOLISHALL(Devel::GlobalDestruction::in_global_destruction);
}
Try::Tiny::catch {
# Without this, Perl will warn "\t(in cleanup)$@" because of some
# bizarre fucked-up logic deep in the internals.
no warnings 'misc';
die $_;
};
return;
}
# support for UNIVERSAL::DOES ...
BEGIN {
my $does = UNIVERSAL->can("DOES") ? "SUPER::DOES" : "isa";
eval 'sub DOES {
my ( $self, $class_or_role_name ) = @_;
return $self->'.$does.'($class_or_role_name)
|| $self->does($class_or_role_name);
}';
}
# new does() methods will be created
# as appropiate see Moose::Meta::Role
sub does {
my ($self, $role_name) = @_;
my $meta = Class::MOP::class_of($self);
(defined $role_name)
|| $meta->throw_error("You much supply a role name to does()");
foreach my $class ($meta->class_precedence_list) {
my $m = $meta->initialize($class);
return 1
if $m->can('does_role') && $m->does_role($role_name);
}
return 0;
}
sub dump {
my $self = shift;
require Data::Dumper;
local $Data::Dumper::Maxdepth = shift if @_;
Data::Dumper::Dumper $self;
}
1;
__END__
=pod
=head1 NAME
Moose::Object - The base object for Moose
=head1 DESCRIPTION
This class is the default base class for all Moose-using classes. When
you C<use Moose> in this class, your class will inherit from this
class.
It provides a default constructor and destructor, which run the
C<BUILDALL> and C<DEMOLISHALL> methods respectively.
You don't actually I<need> to inherit from this in order to use Moose,
but it makes it easier to take advantage of all of Moose's features.
=head1 METHODS
=over 4
=item B<< Moose::Object->new(%params) >>
This method calls C<< $class->BUILDARGS(@_) >>, and then creates a new
instance of the appropriate class. Once the instance is created, it
calls C<< $instance->BUILDALL($params) >>.
=item B<< Moose::Object->BUILDARGS(%params) >>
The default implementation of this method accepts a hash or hash
reference of named parameters. If it receives a single argument that
I<isn't> a hash reference it throws an error.
You can override this method in your class to handle other types of
options passed to the constructor.
This method should always return a hash reference of named options.
=item B<< $object->BUILDALL($params) >>
This method will call every C<BUILD> method in the inheritance
hierarchy, starting with the most distant parent class and ending with
the object's class.
The C<BUILD> method will be passed the hash reference returned by
C<BUILDARGS>.
=item B<< $object->DEMOLISHALL >>
This will call every C<DEMOLISH> method in the inheritance hierarchy,
starting with the object's class and ending with the most distant
parent. C<DEMOLISHALL> and C<DEMOLISH> will receive a boolean
indicating whether or not we are currently in global destruction.
=item B<< $object->does($role_name) >>
This returns true if the object does the given role.
=item B<DOES ($class_or_role_name)>
This is a a Moose role-aware implementation of L<UNIVERSAL/DOES>.
This is effectively the same as writing:
$object->does($name) || $object->isa($name)
This method will work with Perl 5.8, which did not implement
C<UNIVERSAL::DOES>.
=item B<< $object->dump($maxdepth) >>
This is a handy utility for C<Data::Dumper>ing an object. By default,
the maximum depth is 1, to avoid making a mess.
=back
=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 2006-2009 by Infinity Interactive, Inc.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut