use Carp 'confess';
use Scalar::Util 'weaken', 'blessed', 'reftype';
-our $VERSION = '0.06';
+our $VERSION = '0.18';
+our $AUTHORITY = 'cpan:STEVAN';
+
+use Moose::Meta::Method::Overriden;
use base 'Class::MOP::Class';
my $class = shift;
my $pkg = shift;
$class->SUPER::initialize($pkg,
- ':attribute_metaclass' => 'Moose::Meta::Attribute',
- ':instance_metaclass' => 'Moose::Meta::Instance',
+ 'attribute_metaclass' => 'Moose::Meta::Attribute',
+ 'method_metaclass' => 'Moose::Meta::Method',
+ 'instance_metaclass' => 'Moose::Meta::Instance',
@_);
}
push @{$self->roles} => $role;
}
+sub calculate_all_roles {
+ my $self = shift;
+ my %seen;
+ grep { !$seen{$_->name}++ } map { $_->calculate_all_roles } @{ $self->roles };
+}
+
sub does_role {
my ($self, $role_name) = @_;
(defined $role_name)
|| confess "You must supply a role name to look for";
- foreach my $role (@{$self->roles}) {
- return 1 if $role->does_role($role_name);
+ foreach my $class ($self->class_precedence_list) {
+ next unless $class->can('meta');
+ foreach my $role (@{$class->meta->roles}) {
+ return 1 if $role->does_role($role_name);
+ }
}
return 0;
}
my ($self, $role_name) = @_;
(defined $role_name)
|| confess "You must supply a role name to look for";
- foreach my $role (@{$self->roles}) {
- return 1 if $role->excludes_role($role_name);
+ foreach my $class ($self->class_precedence_list) {
+ next unless $class->can('meta');
+ # NOTE:
+ # in the pretty rare instance when a Moose metaclass
+ # is itself extended with a role, this check needs to
+ # be done since some items in the class_precedence_list
+ # might in fact be Class::MOP based still.
+ next unless $class->meta->can('roles');
+ foreach my $role (@{$class->meta->roles}) {
+ return 1 if $role->excludes_role($role_name);
+ }
}
return 0;
}
my ($class, %params) = @_;
my $self = $class->SUPER::new_object(%params);
foreach my $attr ($class->compute_all_applicable_attributes()) {
+ # FIXME:
+ # this does not accept undefined
+ # values, nor does it accept false
+ # values to be passed into the init-arg
next unless $params{$attr->init_arg} && $attr->can('has_trigger') && $attr->has_trigger;
$attr->trigger->($self, $params{$attr->init_arg}, $attr);
}
- return $self;
+ return $self;
}
sub construct_instance {
# FIXME:
# the code below is almost certainly incorrect
# but this is foreign inheritence, so we might
- # have to kludge it in the end.
+ # have to kludge it in the end.
my $instance = $params{'__INSTANCE__'} || $meta_instance->create_instance();
foreach my $attr ($class->compute_all_applicable_attributes()) {
$attr->initialize_instance_slot($meta_instance, $instance, \%params)
return $instance;
}
-sub has_method {
- my ($self, $method_name) = @_;
- (defined $method_name && $method_name)
- || confess "You must define a method name";
-
- my $sub_name = ($self->name . '::' . $method_name);
-
- no strict 'refs';
- return 0 if !defined(&{$sub_name});
- my $method = \&{$sub_name};
-
- return 1 if blessed($method) && $method->isa('Moose::Meta::Role::Method');
- return $self->SUPER::has_method($method_name);
+# FIXME:
+# This is ugly
+sub get_method_map {
+ my $self = shift;
+
+ if (defined $self->{'$!_package_cache_flag'} &&
+ $self->{'$!_package_cache_flag'} == Class::MOP::check_package_cache_flag($self->meta->name)) {
+ return $self->{'%!methods'};
+ }
+
+ my $map = $self->{'%!methods'};
+
+ my $class_name = $self->name;
+ my $method_metaclass = $self->method_metaclass;
+
+ foreach my $symbol ($self->list_all_package_symbols('CODE')) {
+
+ my $code = $self->get_package_symbol('&' . $symbol);
+
+ next if exists $map->{$symbol} &&
+ defined $map->{$symbol} &&
+ $map->{$symbol}->body == $code;
+
+ my ($pkg, $name) = Class::MOP::get_code_info($code);
+
+ if ($pkg->can('meta')
+ # NOTE:
+ # we don't know what ->meta we are calling
+ # here, so we need to be careful cause it
+ # just might blow up at us, or just complain
+ # loudly (in the case of Curses.pm) so we
+ # just be a little overly cautious here.
+ # - SL
+ && eval { no warnings; blessed($pkg->meta) }
+ && $pkg->meta->isa('Moose::Meta::Role')) {
+ #my $role = $pkg->meta->name;
+ #next unless $self->does_role($role);
+ }
+ else {
+ next if ($pkg || '') ne $class_name &&
+ ($name || '') ne '__ANON__';
+
+ }
+
+ $map->{$symbol} = $method_metaclass->wrap($code);
+ }
+
+ return $map;
+}
+
+### ---------------------------------------------
+
+sub add_attribute {
+ my $self = shift;
+ $self->SUPER::add_attribute($self->_process_attribute(@_));
}
sub add_override_method_modifier {
$_super_package ||= $self->name;
my $super = $self->find_next_method_by_name($name);
(defined $super)
- || confess "You cannot override '$name' because it has no super method";
- $self->add_method($name => bless sub {
+ || confess "You cannot override '$name' because it has no super method";
+ $self->add_method($name => Moose::Meta::Method::Overriden->wrap(sub {
my @args = @_;
- no strict 'refs';
no warnings 'redefine';
- local *{$_super_package . '::super'} = sub { $super->(@args) };
- return $method->(@args);
- } => 'Moose::Meta::Method::Overriden');
+ if ($Moose::SUPER_SLOT{$_super_package}) {
+ local *{$Moose::SUPER_SLOT{$_super_package}} = sub { $super->body->(@args) };
+ return $method->(@args);
+ } else {
+ confess "Trying to call override modifier'd method without super()";
+ }
+ }));
}
sub add_augment_method_modifier {
- my ($self, $name, $method) = @_;
+ my ($self, $name, $method) = @_;
(!$self->has_method($name))
- || confess "Cannot add an augment method if a local method is already present";
+ || confess "Cannot add an augment method if a local method is already present";
my $super = $self->find_next_method_by_name($name);
(defined $super)
- || confess "You cannot augment '$name' because it has no super method";
- my $_super_package = $super->package_name;
- # BUT!,... if this is an overriden method ....
+ || confess "You cannot augment '$name' because it has no super method";
+ my $_super_package = $super->package_name;
+ # BUT!,... if this is an overriden method ....
if ($super->isa('Moose::Meta::Method::Overriden')) {
- # we need to be sure that we actually
- # find the next method, which is not
+ # we need to be sure that we actually
+ # find the next method, which is not
# an 'override' method, the reason is
- # that an 'override' method will not
+ # that an 'override' method will not
# be the one calling inner()
- my $real_super = $self->_find_next_method_by_name_which_is_not_overridden($name);
+ my $real_super = $self->_find_next_method_by_name_which_is_not_overridden($name);
$_super_package = $real_super->package_name;
- }
+ }
$self->add_method($name => sub {
my @args = @_;
- no strict 'refs';
no warnings 'redefine';
- local *{$_super_package . '::inner'} = sub { $method->(@args) };
- return $super->(@args);
- });
+ if ($Moose::INNER_SLOT{$_super_package}) {
+ local *{$Moose::INNER_SLOT{$_super_package}} = sub {
+ local *{$Moose::INNER_SLOT{$_super_package}} = sub {};
+ $method->(@args);
+ };
+ return $super->body->(@args);
+ }
+ else {
+ return $super->body->(@args);
+ }
+ });
}
+## Private Utility methods ...
+
sub _find_next_method_by_name_which_is_not_overridden {
my ($self, $name) = @_;
- my @methods = $self->find_all_methods_by_name($name);
- foreach my $method (@methods) {
- return $method->{code}
+ foreach my $method ($self->find_all_methods_by_name($name)) {
+ return $method->{code}
if blessed($method->{code}) && !$method->{code}->isa('Moose::Meta::Method::Overriden');
}
return undef;
}
-package Moose::Meta::Method::Overriden;
+sub _fix_metaclass_incompatability {
+ my ($self, @superclasses) = @_;
+ foreach my $super (@superclasses) {
+ # don't bother if it does not have a meta.
+ next unless $super->can('meta');
+ # get the name, make sure we take
+ # immutable classes into account
+ my $super_meta_name = ($super->meta->is_immutable
+ ? $super->meta->get_mutable_metaclass_name
+ : blessed($super->meta));
+ # if it's meta is a vanilla Moose,
+ # then we can safely ignore it.
+ next if $super_meta_name eq 'Moose::Meta::Class';
+ # but if we have anything else,
+ # we need to check it out ...
+ unless (# see if of our metaclass is incompatible
+ ($self->isa($super_meta_name) &&
+ # and see if our instance metaclass is incompatible
+ $self->instance_metaclass->isa($super->meta->instance_metaclass)) &&
+ # ... and if we are just a vanilla Moose
+ $self->isa('Moose::Meta::Class')) {
+ # re-initialize the meta ...
+ my $super_meta = $super->meta;
+ # NOTE:
+ # We might want to consider actually
+ # transfering any attributes from the
+ # original meta into this one, but in
+ # general you should not have any there
+ # at this point anyway, so it's very
+ # much an obscure edge case anyway
+ $self = $super_meta->reinitialize($self->name => (
+ 'attribute_metaclass' => $super_meta->attribute_metaclass,
+ 'method_metaclass' => $super_meta->method_metaclass,
+ 'instance_metaclass' => $super_meta->instance_metaclass,
+ ));
+ }
+ }
+ return $self;
+}
-use strict;
-use warnings;
+# NOTE:
+# this was crap anyway, see
+# Moose::Util::apply_all_roles
+# instead
+sub _apply_all_roles {
+ die 'DEPRECATED: use Moose::Util::apply_all_roles($meta, @roles) instead'
+}
-our $VERSION = '0.01';
+my %ANON_CLASSES;
-use base 'Class::MOP::Method';
+sub _process_attribute {
+ my $self = shift;
+ my $name = shift;
+ my %options = ((scalar @_ == 1 && ref($_[0]) eq 'HASH') ? %{$_[0]} : @_);
+
+ if ($name =~ /^\+(.*)/) {
+ return $self->_process_inherited_attribute($1, %options);
+ }
+ else {
+ my $attr_metaclass_name;
+ if ($options{metaclass}) {
+ my $metaclass_name = $options{metaclass};
+ eval {
+ my $possible_full_name = 'Moose::Meta::Attribute::Custom::' . $metaclass_name;
+ Class::MOP::load_class($possible_full_name);
+ $metaclass_name = $possible_full_name->can('register_implementation')
+ ? $possible_full_name->register_implementation
+ : $possible_full_name;
+ };
+ if ($@) {
+ Class::MOP::load_class($metaclass_name);
+ }
+ $attr_metaclass_name = $metaclass_name;
+ }
+ else {
+ $attr_metaclass_name = $self->attribute_metaclass;
+ }
+
+ if ($options{traits}) {
+
+ my $anon_role_key = join "|" => @{$options{traits}};
+
+ my $class;
+ if (exists $ANON_CLASSES{$anon_role_key} && defined $ANON_CLASSES{$anon_role_key}) {
+ $class = $ANON_CLASSES{$anon_role_key};
+ }
+ else {
+ $class = Moose::Meta::Class->create_anon_class(
+ superclasses => [ $attr_metaclass_name ]
+ );
+ $ANON_CLASSES{$anon_role_key} = $class;
+
+ my @traits;
+ foreach my $trait (@{$options{traits}}) {
+ eval {
+ my $possible_full_name = 'Moose::Meta::Attribute::Custom::Trait::' . $trait;
+ Class::MOP::load_class($possible_full_name);
+ push @traits => $possible_full_name->can('register_implementation')
+ ? $possible_full_name->register_implementation
+ : $possible_full_name;
+ };
+ if ($@) {
+ push @traits => $trait;
+ }
+ }
+
+ Moose::Util::apply_all_roles($class, @traits);
+ }
+
+ $attr_metaclass_name = $class->name;
+ }
+
+ return $attr_metaclass_name->new($name, %options);
+ }
+}
+
+sub _process_inherited_attribute {
+ my ($self, $attr_name, %options) = @_;
+ my $inherited_attr = $self->find_attribute_by_name($attr_name);
+ (defined $inherited_attr)
+ || confess "Could not find an attribute by the name of '$attr_name' to inherit from";
+ if ($inherited_attr->isa('Moose::Meta::Attribute')) {
+ return $inherited_attr->clone_and_inherit_options(%options);
+ }
+ else {
+ # NOTE:
+ # kind of a kludge to handle Class::MOP::Attributes
+ return $inherited_attr->Moose::Meta::Attribute::clone_and_inherit_options(%options);
+ }
+}
+
+## -------------------------------------------------
+
+use Moose::Meta::Method::Constructor;
+use Moose::Meta::Method::Destructor;
+
+# This could be done by using SUPER and altering ->options
+# I am keeping it this way to make it more explicit.
+sub create_immutable_transformer {
+ my $self = shift;
+ my $class = Class::MOP::Immutable->new($self, {
+ read_only => [qw/superclasses/],
+ cannot_call => [qw/
+ add_method
+ alias_method
+ remove_method
+ add_attribute
+ remove_attribute
+ add_package_symbol
+ remove_package_symbol
+ add_role
+ /],
+ memoize => {
+ class_precedence_list => 'ARRAY',
+ compute_all_applicable_attributes => 'ARRAY',
+ get_meta_instance => 'SCALAR',
+ get_method_map => 'SCALAR',
+ # maybe ....
+ calculate_all_roles => 'ARRAY',
+ }
+ });
+ return $class;
+}
+
+sub make_immutable {
+ my $self = shift;
+ $self->SUPER::make_immutable
+ (
+ constructor_class => 'Moose::Meta::Method::Constructor',
+ destructor_class => 'Moose::Meta::Method::Destructor',
+ inline_destructor => 1,
+ # NOTE:
+ # no need to do this,
+ # Moose always does it
+ inline_accessors => 0,
+ @_,
+ );
+}
1;
=head1 DESCRIPTION
-This is a subclass of L<Class::MOP::Class> with Moose specific
+This is a subclass of L<Class::MOP::Class> with Moose specific
extensions.
-For the most part, the only time you will ever encounter an
-instance of this class is if you are doing some serious deep
-introspection. To really understand this class, you need to refer
+For the most part, the only time you will ever encounter an
+instance of this class is if you are doing some serious deep
+introspection. To really understand this class, you need to refer
to the L<Class::MOP::Class> documentation.
=head1 METHODS
=item B<initialize>
+=item B<make_immutable>
+
+Override original to add default options for inlining destructor
+and altering the Constructor metaclass.
+
+=item B<create_immutable_transformer>
+
+Override original to lock C<add_role> and memoize C<calculate_all_roles>
+
=item B<new_object>
We override this method to support the C<trigger> attribute option.
=item B<construct_instance>
-This provides some Moose specific extensions to this method, you
-almost never call this method directly unless you really know what
-you are doing.
+This provides some Moose specific extensions to this method, you
+almost never call this method directly unless you really know what
+you are doing.
This method makes sure to handle the moose weak-ref, type-constraint
-and type coercion features.
+and type coercion features.
-=item B<has_method ($name)>
+=item B<get_method_map>
-This accomidates Moose::Meta::Role::Method instances, which are
-aliased, instead of added, but still need to be counted as valid
+This accommodates Moose::Meta::Role::Method instances, which are
+aliased, instead of added, but still need to be counted as valid
methods.
=item B<add_override_method_modifier ($name, $method)>
-This will create an C<override> method modifier for you, and install
+This will create an C<override> method modifier for you, and install
it in the package.
=item B<add_augment_method_modifier ($name, $method)>
-This will create an C<augment> method modifier for you, and install
+This will create an C<augment> method modifier for you, and install
it in the package.
+=item B<calculate_all_roles>
+
=item B<roles>
-This will return an array of C<Moose::Meta::Role> instances which are
+This will return an array of C<Moose::Meta::Role> instances which are
attached to this class.
=item B<add_role ($role)>
-This takes an instance of C<Moose::Meta::Role> in C<$role>, and adds it
+This takes an instance of C<Moose::Meta::Role> in C<$role>, and adds it
to the list of associated roles.
=item B<does_role ($role_name)>
-This will test if this class C<does> a given C<$role_name>. It will
-not only check it's local roles, but ask them as well in order to
+This will test if this class C<does> a given C<$role_name>. It will
+not only check it's local roles, but ask them as well in order to
cascade down the role hierarchy.
=item B<excludes_role ($role_name)>
-This will test if this class C<excludes> a given C<$role_name>. It will
-not only check it's local roles, but ask them as well in order to
+This will test if this class C<excludes> a given C<$role_name>. It will
+not only check it's local roles, but ask them as well in order to
cascade down the role hierarchy.
-=item B<add_attribute $attr_name, %params>
-
-This method does the same thing as L<Class::MOP::Class/add_attribute>, but adds
-suport for delegation.
-
-=back
-
-=head1 INTERNAL METHODS
-
-=over 4
-
-=item compute_delegation
-
-=item generate_delegation_list
-
-=item generate_delgate_method
-
-=item get_delegatable_methods
+=item B<add_attribute ($attr_name, %params|$params)>
-=item filter_delegations
+This method does the same thing as L<Class::MOP::Class::add_attribute>, but adds
+support for taking the C<$params> as a HASH ref.
=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 COPYRIGHT AND LICENSE
-Copyright 2006 by Infinity Interactive, Inc.
+Copyright 2006-2008 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.
+it under the same terms as Perl itself.
=cut
projects / gitmo/Moose.git / blobdiff