X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FObject.pm;h=e619d1f136d96fc7a44d08f220ff1d11a99694af;hb=72dc4616a712d99e56bbed49b729a120b605ea49;hp=d018d27be36a3fecf535d8d2b29337689154c86c;hpb=ac0824eea01ff70157850ce849303cd3c53054f4;p=gitmo%2FMoose.git diff --git a/lib/Moose/Object.pm b/lib/Moose/Object.pm index d018d27..e619d1f 100644 --- a/lib/Moose/Object.pm +++ b/lib/Moose/Object.pm @@ -4,84 +4,123 @@ package Moose::Object; 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'; -use Carp 'confess'; +sub new { + my $class = shift; + my $real_class = Scalar::Util::blessed($class) || $class; -our $VERSION = '0.12'; -our $AUTHORITY = 'cpan:STEVAN'; + my $params = $real_class->BUILDARGS(@_); -sub new { + return Class::MOP::Class->initialize($real_class)->new_object($params); +} + +sub BUILDARGS { 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]}; + 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 { - %params = @_; + return {@_}; } - my $self = $class->meta->new_object(%params); - $self->BUILDALL(\%params); - return $self; } 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')) { - $method->{code}->body->($self, $params); + foreach my $method (reverse Class::MOP::class_of($self)->find_all_methods_by_name('BUILD')) { + $method->{code}->execute($self, $params); } } sub DEMOLISHALL { - # 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 - return unless $_[0]->can('DEMOLISH'); - my $self = shift; - { - local $@; - foreach my $method ($self->meta->find_all_methods_by_name('DEMOLISH')) { - $method->{code}->body->($self); - } - } + # 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 { + die $_; + }; + + return; } -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 +# new does() methods will be created +# as appropiate see Moose::Meta::Role sub does { my ($self, $role_name) = @_; + my $class = Scalar::Util::blessed($self) || $self; + my $meta = Class::MOP::Class->initialize($class); (defined $role_name) - || confess "You much supply a role name to does()"; - my $meta = $self->meta; - 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; } -# 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 { +sub dump { my $self = shift; require Data::Dumper; local $Data::Dumper::Maxdepth = shift if @_; @@ -90,79 +129,77 @@ sub dump { 1; +# ABSTRACT: The base object for Moose + __END__ =pod -=head1 NAME - -Moose::Object - The base object for Moose - =head1 DESCRIPTION -This serves as the base object for all Moose classes. Every -effort will be made to ensure that all classes which C -will inherit from this class. It provides a default constructor -and destructor, which run all the BUILD and DEMOLISH methods in -the class tree. +This class is the default base class for all Moose-using classes. When +you C in this class, your class will inherit from this +class. -You don't actually I to inherit from this in order to -use Moose though. It is just here to make life easier. +It provides a default constructor and destructor, which run all of the +C and C methods in the inheritance hierarchy, +respectively. + +You don't actually I to inherit from this in order to use Moose, +but it makes it easier to take advantage of all of Moose's features. =head1 METHODS =over 4 -=item B - -This will return the metaclass associated with the given class. - -=item B - -This will create a new instance and call C. +=item B<< Moose::Object->new(%params|$params) >> -=item B +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 method in the +inheritance hierarchy. -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<< Moose::Object->BUILDARGS(%params|$params) >> -=item B +The default implementation of this method accepts a hash or hash +reference of named parameters. If it receives a single argument that +I a hash reference it throws an error. -This will call every C method in the inheritance hierarchy. +You can override this method in your class to handle other types of +options passed to the constructor. -=item B +This method should always return a hash reference of named options. -This will check if the invocant's class C a given C<$role_name>. -This is similar to C for object, but it checks the roles instead. +=item B<< $object->does($role_name) >> -=item B +This returns true if the object does the given role. -Cmon, how many times have you written the following code while debugging: +=item B<< $object->DOES($class_or_role_name) >> - use Data::Dumper; - warn Dumper $obj; +This is a a Moose role-aware implementation of L. -It can get seriously annoying, so why not just use this. +This is effectively the same as writing: -=back + $object->does($name) || $object->isa($name) -=head1 BUGS +This method will work with Perl 5.8, which did not implement +C. -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. +=item B<< $object->dump($maxdepth) >> -=head1 AUTHOR +This is a handy utility for Cing an object. By default, +the maximum depth is 1, to avoid making a mess. -Stevan Little Estevan@iinteractive.comE +=item B<< $object->DESTROY >> -=head1 COPYRIGHT AND LICENSE +A default destructor is provided, which calls +C<< $instance->DEMOLISH($in_global_destruction) >> for each C +method in the inheritance hierarchy. -Copyright 2006-2008 by Infinity Interactive, Inc. +=back -L +=head1 BUGS -This library is free software; you can redistribute it and/or modify -it under the same terms as Perl itself. +See L for details on reporting bugs. =cut