X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FObject.pm;h=0d2aa9c555eb688e190bfc01c0757046b6c19374;hb=c2685d2054e3f63cf38fca4fad1074b4a2e5be83;hp=58af2271f5ed96b253f36e267c53c72f0e35e408;hpb=28412c0b280c30cfd1eac1579b9f5953b5e1850e;p=gitmo%2FMoose.git diff --git a/lib/Moose/Object.pm b/lib/Moose/Object.pm index 58af227..0d2aa9c 100644 --- a/lib/Moose/Object.pm +++ b/lib/Moose/Object.pm @@ -4,30 +4,43 @@ package Moose::Object; use strict; use warnings; +use Scalar::Util; + use if ( not our $__mx_is_compiled ), 'Moose::Meta::Class'; use if ( not our $__mx_is_compiled ), metaclass => 'Moose::Meta::Class'; -use Carp 'confess'; - -our $VERSION = '0.10'; +our $VERSION = '0.73'; +$VERSION = eval $VERSION; our $AUTHORITY = 'cpan:STEVAN'; sub new { my $class = shift; - my %params; - if (scalar @_ == 1) { - if (defined $_[0]) { - (ref($_[0]) eq 'HASH') - || confess "Single parameters to new() must be a HASH ref"; - %params = %{$_[0]}; + + 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 { - %params = @_; + return {@_}; } - my $self = $class->meta->new_object(%params); - $self->BUILDALL(\%params); - return $self; } sub BUILDALL { @@ -36,51 +49,65 @@ sub BUILDALL { # extra meta level calls return unless $_[0]->can('BUILD'); my ($self, $params) = @_; - foreach my $method (reverse $self->meta->find_all_methods_by_name('BUILD')) { - $method->{code}->($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; # NOTE: we ask Perl if we even # need to do this first, to avoid # extra meta level calls - return unless $_[0]->can('DEMOLISH'); - my $self = shift; - foreach my $method ($self->meta->find_all_methods_by_name('DEMOLISH')) { - $method->{code}->($self); - } + return unless $self->can('DEMOLISH'); + foreach my $method (Class::MOP::class_of($self)->find_all_methods_by_name('DEMOLISH')) { + $method->{code}->execute($self); + } +} + +sub DESTROY { + # if we have an exception here ... + if ($@) { + # localize the $@ ... + local $@; + # run DEMOLISHALL ourselves, ... + $_[0]->DEMOLISHALL; + # and return ... + return; + } + # otherwise it is normal destruction + $_[0]->DEMOLISHALL; } -sub DESTROY { goto &DEMOLISHALL } +# 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 approiate see Moose::Meta::Role +# as appropiate see Moose::Meta::Role sub does { my ($self, $role_name) = @_; + my $meta = Class::MOP::class_of($self); (defined $role_name) - || confess "You much supply a role name to does()"; - my $meta = $self->meta; + || $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 $meta->initialize($class)->does_role($role_name); + if $m->can('does_role') && $m->does_role($role_name); } return 0; } -# RANT: -# Cmon, how many times have you written -# the following code while debugging: -# -# use Data::Dumper; -# warn Dumper \%thing; -# -# It can get seriously annoying, so why -# not just do this ... sub dump { my $self = shift; require Data::Dumper; - $Data::Dumper::Maxdepth = shift if @_; + local $Data::Dumper::Maxdepth = shift if @_; Data::Dumper::Dumper $self; } @@ -96,49 +123,71 @@ 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 -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 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 though. It is just here to make life easier. +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 will return the metaclass associated with the given class. +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. -=item B +The C method will be passed the hash reference returned by +C. -This will create a new instance and call C. +=item B<< $object->DEMOLISHALL >> -=item B +This will call every C method in the inheritance hierarchy, +starting with the object's class and ending with the most distant +parent. -This will call every C method in the inheritance hierarchy, -and pass it a hash-ref of the the C<%params> passed to C. +=item B<< $object->does($role_name) >> -=item B +This returns true if the object does the given role. -This will call every C method in the inheritance hierarchy. +=item B -=item B +This is a a Moose role-aware implementation of L. -This will check if the invocant's class C a given C<$role_name>. -This is similar to C for object, but it checks the roles instead. +This is effectively the same as writing: -=item B + $object->does($name) || $object->isa($name) -Cmon, how many times have you written the following code while debugging: +This method will work with Perl 5.8, which did not implement +C. - use Data::Dumper; - warn Dumper $obj; +=item B<< $object->dump($maxdepth) >> -It can get seriously annoying, so why not just use this. +This is a handy utility for Cing an object. By default, +the maximum depth is 1, to avoid making a mess. =back @@ -154,7 +203,7 @@ Stevan Little Estevan@iinteractive.comE =head1 COPYRIGHT AND LICENSE -Copyright 2006-2008 by Infinity Interactive, Inc. +Copyright 2006-2009 by Infinity Interactive, Inc. L