X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FClass%2FMOP%2FImmutable.pm;h=acb09e4d641130f718db6715b9ce9d150766272d;hb=94278c1ba6283af20c09a6aef615954825d08162;hp=289a2d5d317e4ba2c9243baedeede2d5188295b5;hpb=4c1053331a179a6d1dd8e71d49ef05852a81387e;p=gitmo%2FClass-MOP.git diff --git a/lib/Class/MOP/Immutable.pm b/lib/Class/MOP/Immutable.pm index 289a2d5..acb09e4 100644 --- a/lib/Class/MOP/Immutable.pm +++ b/lib/Class/MOP/Immutable.pm @@ -9,31 +9,54 @@ use Class::MOP::Method::Constructor; use Carp 'confess'; use Scalar::Util 'blessed'; -our $VERSION = '0.06'; +our $VERSION = '0.65'; +$VERSION = eval $VERSION; our $AUTHORITY = 'cpan:STEVAN'; use base 'Class::MOP::Object'; sub new { - my ($class, $metaclass, $options) = @_; + my ($class, @args) = @_; - my $self = bless { - '$!metaclass' => $metaclass, - '%!options' => $options, - '$!immutable_metaclass' => undef, - } => $class; + my ( $metaclass, $options ); + + if ( @args == 2 ) { + # compatibility args + ( $metaclass, $options ) = @args; + } else { + unshift @args, "metaclass" if @args % 2 == 1; + + # default named args + my %options = @args; + $options = \%options; + $metaclass = $options{metaclass}; + } + + my $self = $class->_new( + 'metaclass' => $metaclass, + 'options' => $options, + 'immutable_metaclass' => undef, + ); # NOTE: # we initialize the immutable # version of the metaclass here + # FIXME lazify $self->create_immutable_metaclass; return $self; } -sub immutable_metaclass { (shift)->{'$!immutable_metaclass'} } -sub metaclass { (shift)->{'$!metaclass'} } -sub options { (shift)->{'%!options'} } +sub _new { + my $class = shift; + my $options = @_ == 1 ? $_[0] : {@_}; + + bless $options, $class; +} + +sub immutable_metaclass { (shift)->{'immutable_metaclass'} } +sub metaclass { (shift)->{'metaclass'} } +sub options { (shift)->{'options'} } sub create_immutable_metaclass { my $self = shift; @@ -43,7 +66,7 @@ sub create_immutable_metaclass { # metaclass is just a anon-class # which shadows the methods # appropriately - $self->{'$!immutable_metaclass'} = Class::MOP::Class->create_anon_class( + $self->{'immutable_metaclass'} = Class::MOP::Class->create_anon_class( superclasses => [ blessed($self->metaclass) ], methods => $self->create_methods_for_immutable_metaclass, ); @@ -59,7 +82,15 @@ my %DEFAULT_METHODS = ( return Class::MOP::Class->initialize($self) unless blessed($self); # otherwise, they are asking for the metaclass # which has been made immutable, which is itself - return $self; + # except in the cases where it is a metaclass itself + # that has been made immutable and for that we need + # to dig a bit ... + if ($self->isa('Class::MOP::Class')) { + return $self->{'___original_class'}->meta; + } + else { + return $self; + } }, is_mutable => sub { 0 }, is_immutable => sub { 1 }, @@ -73,17 +104,16 @@ my %DEFAULT_METHODS = ( sub make_metaclass_immutable { my ($self, $metaclass, $options) = @_; - foreach my $pair ( - [ inline_accessors => 1 ], - [ inline_constructor => 1 ], - [ inline_destructor => 0 ], - [ constructor_name => 'new' ], - [ debug => 0 ], - ) { - $options->{$pair->[0]} = $pair->[1] unless exists $options->{$pair->[0]}; - } + my %options = ( + inline_accessors => 1, + inline_constructor => 1, + inline_destructor => 0, + constructor_name => 'new', + debug => 0, + %$options, + ); - my %options = %$options; + %$options = %options; # FIXME who the hell is relying on this?!? tests fail =( if ($options{inline_accessors}) { foreach my $attr_name ($metaclass->get_attribute_list) { @@ -104,7 +134,7 @@ sub make_metaclass_immutable { package_name => $metaclass->name, name => $options{constructor_name} ) - ) unless $metaclass->has_method($options{constructor_name}); + ) if $options{replace_constructor} or !$metaclass->has_method($options{constructor_name}); } if ($options{inline_destructor}) { @@ -114,20 +144,27 @@ sub make_metaclass_immutable { my $destructor_class = $options{destructor_class}; - my $destructor = $destructor_class->new( - options => \%options, - metaclass => $metaclass, - package_name => $metaclass->name, - name => 'DESTROY' - ); - - $metaclass->add_method('DESTROY' => $destructor) - # NOTE: - # we allow the destructor to determine - # if it is needed or not, it can perform - # all sorts of checks because it has the - # metaclass instance - if $destructor->is_needed; + # NOTE: + # we allow the destructor to determine + # if it is needed or not before we actually + # create the destructor too + # - SL + if ($destructor_class->is_needed($metaclass)) { + my $destructor = $destructor_class->new( + options => \%options, + metaclass => $metaclass, + package_name => $metaclass->name, + name => 'DESTROY' + ); + + $metaclass->add_method('DESTROY' => $destructor) + # NOTE: + # we allow the destructor to determine + # if it is needed or not, it can perform + # all sorts of checks because it has the + # metaclass instance + if $destructor->is_needed; + } } my $memoized_methods = $self->options->{memoize};