use strict;
use warnings;
+use Carp ();
+use Devel::GlobalDestruction ();
+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 $VERSION = '0.72';
-$VERSION = eval $VERSION;
-our $AUTHORITY = 'cpan:STEVAN';
-
sub new {
my $class = shift;
- my $params = $class->BUILDARGS(@_);
- my $self = $class->meta->new_object($params);
- $self->BUILDALL($params);
- return $self;
+ my $real_class = Scalar::Util::blessed($class) || $class;
+
+ my $params = $real_class->BUILDARGS(@_);
+
+ return Class::MOP::Class->initialize($real_class)->new_object($params);
}
sub BUILDARGS {
my $class = shift;
- if (scalar @_ == 1) {
- if (defined $_[0]) {
- (ref($_[0]) eq 'HASH')
- || $class->meta->throw_error("Single parameters to new() must be a HASH ref", data => $_[0]);
- return {%{$_[0]}};
- }
- else {
- return {}; # FIXME this is compat behavior, but is it correct?
+ 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] } };
+ }
+ elsif ( @_ % 2 ) {
+ Carp::carp(
+ "The new() method for $class expects a hash reference or a key/value list."
+ . " You passed an odd number of arguments" );
+ return { @_, undef };
+ }
else {
return {@_};
}
}
sub BUILDALL {
- # NOTE: we ask Perl if we even
+ # NOTE: we ask Perl if we even
# need to do this first, to avoid
# extra meta level calls
- return unless $_[0]->can('BUILD');
+ return unless $_[0]->can('BUILD');
my ($self, $params) = @_;
- foreach my $method (reverse $self->meta->find_all_methods_by_name('BUILD')) {
+ 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;
- # NOTE: we ask Perl if we even
+ 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
+ # extra meta level calls
return unless $self->can('DEMOLISH');
- foreach my $method ($self->meta->find_all_methods_by_name('DEMOLISH')) {
- $method->{code}->execute($self);
+
+ 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 $demolish;
}
}
-sub DESTROY {
- # if we have an exception here ...
- if ($@) {
- # localize the $@ ...
- local $@;
- # run DEMOLISHALL ourselves, ...
- $_[0]->DEMOLISHALL;
- # and return ...
- return;
+sub DESTROY {
+ my $self = shift;
+
+ local $?;
+
+ Try::Tiny::try {
+ $self->DEMOLISHALL(Devel::GlobalDestruction::in_global_destruction);
}
- # otherwise it is normal destruction
- $_[0]->DEMOLISHALL;
+ Try::Tiny::catch {
+ die $_;
+ };
+
+ return;
}
# support for UNIVERSAL::DOES ...
}';
}
-# new does() methods will be created
+# new does() methods will be created
# as appropiate see Moose::Meta::Role
sub does {
my ($self, $role_name) = @_;
- my $meta = $self->meta;
+ my $class = Scalar::Util::blessed($self) || $self;
+ my $meta = Class::MOP::Class->initialize($class);
(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;
+ || $meta->throw_error("You must supply a role name to does()");
+ return 1 if $meta->can('does_role') && $meta->does_role($role_name);
+ return 0;
}
-sub dump {
+sub dump {
my $self = shift;
require Data::Dumper;
local $Data::Dumper::Maxdepth = shift if @_;
1;
+# ABSTRACT: The base object for Moose
+
__END__
=pod
-=head1 NAME
-
-Moose::Object - The base object for Moose
-
=head1 DESCRIPTION
-This serves as the base object for all Moose classes. Every
-effort will be made to ensure that all classes which C<use Moose>
-will inherit from this class. It provides a default constructor
-and destructor, which run all the BUILD and DEMOLISH methods in
-the class tree.
+This class is the default base class for all Moose-using classes. When
+you C<use Moose> in this class, your class will inherit from this
+class.
+
+It provides a default constructor and destructor, which run all of the
+C<BUILD> and C<DEMOLISH> methods in the inheritance hierarchy,
+respectively.
-You don't actually I<need> to inherit from this in order to
-use Moose though. It is just here to make life easier.
+You don't actually I<need> to inherit from this in order to use Moose,
+but it makes it easier to take advantage of all of Moose's features.
=head1 METHODS
=over 4
-=item B<meta>
-
-This will return the metaclass associated with the given class.
+=item B<< Moose::Object->new(%params|$params) >>
-=item B<new>
+This method calls C<< $class->BUILDARGS(@_) >>, and then creates a new
+instance of the appropriate class. Once the instance is created, it
+calls C<< $instance->BUILD($params) >> for each C<BUILD> method in the
+inheritance hierarchy.
-This will call C<BUILDARGS>, create a new instance and call C<BUILDALL>.
+=item B<< Moose::Object->BUILDARGS(%params|$params) >>
-=item B<BUILDARGS>
+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.
-This method processes an argument list into a hash reference. It is used by
-C<new>.
+You can override this method in your class to handle other types of
+options passed to the constructor.
-=item B<BUILDALL>
+This method should always return a hash reference of named options.
-This will call every C<BUILD> method in the inheritance hierarchy,
-and pass it a hash-ref of the the C<%params> passed to C<new>.
+=item B<< $object->does($role_name) >>
-=item B<DEMOLISHALL>
+This returns true if the object does the given role.
-This will call every C<DEMOLISH> method in the inheritance hierarchy.
+=item B<< $object->DOES($class_or_role_name) >>
-=item B<does ($role_name)>
+This is a a Moose role-aware implementation of L<UNIVERSAL/DOES>.
-This will check if the invocant's class C<does> a given C<$role_name>.
-This is similar to C<isa> for object, but it checks the roles instead.
+This is effectively the same as writing:
-=item B<DOES ($class_or_role_name)>
+ $object->does($name) || $object->isa($name)
-A Moose Role aware implementation of L<UNIVERSAL/DOES>.
+This method will work with Perl 5.8, which did not implement
+C<UNIVERSAL::DOES>.
-C<DOES> is equivalent to C<isa> or C<does>.
+=item B<< $object->dump($maxdepth) >>
-=item B<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.
-C'mon, how many times have you written the following code while debugging:
+=item B<< $object->DESTROY >>
- use Data::Dumper;
- warn Dumper $obj;
-
-It can get seriously annoying, so why not just use this.
+A default destructor is provided, which calls
+C<< $instance->DEMOLISH($in_global_destruction) >> for each C<DEMOLISH>
+method in the inheritance hierarchy.
=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.
-
-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.
+See L<Moose/BUGS> for details on reporting bugs.
=cut