X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FObject.pm;h=191e7cb0ea53c593d3958c1828d1ee68cff2d13e;hb=75d2da3428d70afc00efb0f295fd0656a05d6b9f;hp=6835bd27d0d01a0656f63ed2d39126fd6ba719b2;hpb=fcd84ca90cb39d34c25a5731fecb919b19c46afa;p=gitmo%2FMoose.git diff --git a/lib/Moose/Object.pm b/lib/Moose/Object.pm index 6835bd2..191e7cb 100644 --- a/lib/Moose/Object.pm +++ b/lib/Moose/Object.pm @@ -3,11 +3,123 @@ package Moose::Object; use strict; use warnings; -use metaclass; + +use Scalar::Util; +use Devel::GlobalDestruction qw(in_global_destruction); + +use if ( not our $__mx_is_compiled ), 'Moose::Meta::Class'; +use if ( not our $__mx_is_compiled ), metaclass => 'Moose::Meta::Class'; + +our $VERSION = '0.77'; +$VERSION = eval $VERSION; +our $AUTHORITY = 'cpan:STEVAN'; sub new { my $class = shift; - $class->meta->new_object(@_); + + my $params = $class->BUILDARGS(@_); + + # We want to support passing $self->new, but initialize + # takes only an unblessed class name + 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'); + + # This is a hack, because Moose::Meta::Class may not be the right + # metaclass, but class_of may return undef during global + # destruction, if the metaclass object has already been cleaned + # up. + my $meta = Class::MOP::class_of($self) + || Moose::Meta::Class->initialize( ref $self ); + + foreach my $method ( $meta->find_all_methods_by_name('DEMOLISH') ) { + $method->{code}->execute($self, $in_global_destruction); + } +} + +sub DESTROY { + # if we have an exception here ... + if ($@) { + # localize the $@ ... + local $@; + # run DEMOLISHALL ourselves, ... + $_[0]->DEMOLISHALL(in_global_destruction); + # and return ... + return; + } + # otherwise it is normal destruction + $_[0]->DEMOLISHALL(in_global_destruction); +} + +# 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; @@ -18,46 +130,96 @@ __END__ =head1 NAME -Moose::Object - - -=head1 SYNOPSIS +Moose::Object - The base object for Moose =head1 DESCRIPTION +This class is the default base class for all Moose-using classes. When +you C in this class, your class will inherit from this +class. + +It provides a default constructor and destructor, which run the +C and C methods respectively. + +You don't actually I 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 +=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 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 method in the inheritance +hierarchy, starting with the most distant parent class and ending with +the object's class. + +The C method will be passed the hash reference returned by +C. + +=item B<< $object->DEMOLISHALL >> + +This will call every C method in the inheritance hierarchy, +starting with the object's class and ending with the most distant +parent. C and C will receive a boolean +indicating whether or not we are currently in global destruction. -=item B +=item B<< $object->does($role_name) >> + +This returns true if the object does the given role. + +=item B + +This is a a Moose role-aware implementation of L. + +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. + +=item B<< $object->dump($maxdepth) >> + +This is a handy utility for Cing 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 +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 CODE COVERAGE - -I use L to test the code coverage of my tests, below is the -L report on this module's test suite. - -=head1 ACKNOWLEDGEMENTS - =head1 AUTHOR Stevan Little Estevan@iinteractive.comE =head1 COPYRIGHT AND LICENSE -Copyright 2006 by Infinity Interactive, Inc. +Copyright 2006-2009 by Infinity Interactive, Inc. L This library is free software; you can redistribute it and/or modify -it under the same terms as Perl itself. +it under the same terms as Perl itself. -=cut \ No newline at end of file +=cut