use Class::MOP;
use Carp 'confess';
-use Scalar::Util 'weaken', 'blessed';
+use Scalar::Util 'weaken', 'blessed', 'reftype';
-our $VERSION = '0.05';
+our $VERSION = '0.09';
+
+use Moose::Meta::Method::Overriden;
use base 'Class::MOP::Class';
my $pkg = shift;
$class->SUPER::initialize($pkg,
':attribute_metaclass' => 'Moose::Meta::Attribute',
+ ':method_metaclass' => 'Moose::Meta::Method',
+ ':instance_metaclass' => 'Moose::Meta::Instance',
@_);
-}
+}
sub add_role {
my ($self, $role) = @_;
push @{$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;
+}
+
+sub excludes_role {
+ my ($self, $role_name) = @_;
+ (defined $role_name)
+ || confess "You must supply a role name to look for";
+ foreach my $class ($self->class_precedence_list) {
+ next unless $class->can('meta');
+ 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}, $attr);
}
sub construct_instance {
my ($class, %params) = @_;
- my $instance = $params{'__INSTANCE__'} || $class->get_meta_instance->create_instance();
- foreach my $attr ($class->compute_all_applicable_attributes()) {
- $attr->initialize_instance_slot($instance, \%params)
+ my $meta_instance = $class->get_meta_instance;
+ # FIXME:
+ # the code below is almost certainly incorrect
+ # but this is foreign inheritence, so we might
+ # 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);
+# FIXME:
+# This is ugly
+sub get_method_map {
+ my $self = shift;
+ 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 $gv = B::svref_2object($code)->GV;
+
+ my $pkg = $gv->STASH->NAME;
+ if ($pkg->can('meta') && $pkg->meta && $pkg->meta->isa('Moose::Meta::Role')) {
+ #my $role = $pkg->meta->name;
+ #next unless $self->does_role($role);
+ }
+ else {
+ next if ($gv->STASH->NAME || '') ne $class_name &&
+ ($gv->NAME || '') ne '__ANON__';
+ }
+
+ $map->{$symbol} = $method_metaclass->wrap($code);
+ }
- 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);
+ return $map;
}
+### ---------------------------------------------
+
+sub add_attribute {
+ my $self = shift;
+ my $name = shift;
+ if (scalar @_ == 1 && ref($_[0]) eq 'HASH') {
+ # NOTE:
+ # if it is a HASH ref, we de-ref it.
+ # this will usually mean that it is
+ # coming from a role
+ $self->SUPER::add_attribute($name => %{$_[0]});
+ }
+ else {
+ # otherwise we just pass the args
+ $self->SUPER::add_attribute($name => @_);
+ }
+}
sub add_override_method_modifier {
my ($self, $name, $method, $_super_package) = @_;
+ (!$self->has_method($name))
+ || confess "Cannot add an override method if a local method is already present";
# need this for roles ...
$_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 {
+ $self->add_method($name => Moose::Meta::Method::Overriden->wrap(sub {
my @args = @_;
no strict 'refs';
no warnings 'redefine';
local *{$_super_package . '::super'} = sub { $super->(@args) };
return $method->(@args);
- } => 'Moose::Meta::Method::Overriden');
+ }));
}
sub add_augment_method_modifier {
my ($self, $name, $method) = @_;
+ (!$self->has_method($name))
+ || 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";
});
}
+## 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) {
+ 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 $super->can('meta');
+ # if it's meta is a vanilla Moose,
+ # then we can safely ignore it.
+ next if blessed($super->meta) eq 'Moose::Meta::Class';
+ # but if we have anything else,
+ # we need to check it out ...
+ unless (# see if of our metaclass is incompatible
+ ($self->isa(blessed($super->meta)) &&
+ # 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 $self;
+}
-use strict;
-use warnings;
+sub _apply_all_roles {
+ my ($self, @roles) = @_;
+ ($_->can('meta') && $_->meta->isa('Moose::Meta::Role'))
+ || confess "You can only consume roles, $_ is not a Moose role"
+ foreach @roles;
+ if (scalar @roles == 1) {
+ $roles[0]->meta->apply($self);
+ }
+ else {
+ # FIXME
+ # we should make a Moose::Meta::Role::Composite
+ # which is a smaller version of Moose::Meta::Role
+ # which does not use any package stuff
+ Moose::Meta::Role->combine(
+ map { $_->meta } @roles
+ )->apply($self);
+ }
+}
-our $VERSION = '0.01';
+sub _process_attribute {
+ my ($self, $name, %options) = @_;
+ if ($name =~ /^\+(.*)/) {
+ my $new_attr = $self->_process_inherited_attribute($1, %options);
+ $self->add_attribute($new_attr);
+ }
+ else {
+ if ($options{metaclass}) {
+ Moose::_load_all_classes($options{metaclass});
+ $self->add_attribute($options{metaclass}->new($name, %options));
+ }
+ else {
+ $self->add_attribute($name, %options);
+ }
+ }
+}
-use base 'Class::MOP::Method';
+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";
+ my $new_attr;
+ if ($inherited_attr->isa('Moose::Meta::Attribute')) {
+ $new_attr = $inherited_attr->clone_and_inherit_options(%options);
+ }
+ else {
+ # NOTE:
+ # kind of a kludge to handle Class::MOP::Attributes
+ $new_attr = Moose::Meta::Attribute::clone_and_inherit_options(
+ $inherited_attr, %options
+ );
+ }
+ return $new_attr;
+}
1;
This method makes sure to handle the moose weak-ref, type-constraint
and type coercion features.
-=item B<has_method ($name)>
+=item B<get_method_map>
-This accomidates Moose::Meta::Role::Method instances, which are
+This accommodates Moose::Meta::Role::Method instances, which are
aliased, instead of added, but still need to be counted as valid
methods.
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
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
+cascade down the role hierarchy.
+
+=item B<add_attribute ($attr_name, %params|$params)>
+
+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
it under the same terms as Perl itself.
=cut
+
projects / gitmo/Moose.git / blobdiff