use strictures 1;
use Moo::_Utils;
+use Role::Tiny ();
use base qw(Role::Tiny);
+our $VERSION = '1.003001';
+$VERSION = eval $VERSION;
+
require Moo::sification;
BEGIN { *INFO = \%Role::Tiny::INFO }
our %INFO;
+our %APPLY_DEFAULTS;
+
+sub _install_tracked {
+ my ($target, $name, $code) = @_;
+ $INFO{$target}{exports}{$name} = $code;
+ _install_coderef "${target}::${name}" => "Moo::Role::${name}" => $code;
+}
sub import {
my $target = caller;
my ($me) = @_;
strictures->import;
- return if $INFO{$target}; # already exported into this package
+ if ($Moo::MAKERS{$target} and $Moo::MAKERS{$target}{is_class}) {
+ die "Cannot import Moo::Role into a Moo class";
+ }
+ $INFO{$target} ||= {};
# get symbol table reference
- my $stash = do { no strict 'refs'; \%{"${target}::"} };
- _install_coderef "${target}::has" => "Moo::Role::has" => sub {
- my ($name, %spec) = @_;
- ($INFO{$target}{accessor_maker} ||= do {
- require Method::Generate::Accessor;
- Method::Generate::Accessor->new
- })->generate_method($target, $name, \%spec);
- push @{$INFO{$target}{attributes}||=[]}, $name, \%spec;
- $me->_maybe_reset_handlemoose($target);
+ my $stash = _getstash($target);
+ _install_tracked $target => has => sub {
+ my $name_proto = shift;
+ my @name_proto = ref $name_proto eq 'ARRAY' ? @$name_proto : $name_proto;
+ if (@_ % 2 != 0) {
+ require Carp;
+ Carp::croak("Invalid options for " . join(', ', map "'$_'", @name_proto)
+ . " attribute(s): even number of arguments expected, got " . scalar @_)
+ }
+ my %spec = @_;
+ foreach my $name (@name_proto) {
+ my $spec_ref = @name_proto > 1 ? +{%spec} : \%spec;
+ ($INFO{$target}{accessor_maker} ||= do {
+ require Method::Generate::Accessor;
+ Method::Generate::Accessor->new
+ })->generate_method($target, $name, $spec_ref);
+ push @{$INFO{$target}{attributes}||=[]}, $name, $spec_ref;
+ $me->_maybe_reset_handlemoose($target);
+ }
};
# install before/after/around subs
foreach my $type (qw(before after around)) {
- *{_getglob "${target}::${type}"} = sub {
+ _install_tracked $target => $type => sub {
require Class::Method::Modifiers;
push @{$INFO{$target}{modifiers}||=[]}, [ $type => @_ ];
$me->_maybe_reset_handlemoose($target);
};
}
- *{_getglob "${target}::requires"} = sub {
+ _install_tracked $target => requires => sub {
push @{$INFO{$target}{requires}||=[]}, @_;
$me->_maybe_reset_handlemoose($target);
};
- *{_getglob "${target}::with"} = sub {
+ _install_tracked $target => with => sub {
$me->apply_roles_to_package($target, @_);
$me->_maybe_reset_handlemoose($target);
};
+ return if $INFO{$target}{is_role}; # already exported into this package
+ $INFO{$target}{is_role} = 1;
+ *{_getglob("${target}::meta")} = $me->can('meta');
# grab all *non-constant* (stash slot is not a scalarref) subs present
# in the symbol table and store their refaddrs (no need to forcibly
# inflate constant subs into real subs) - also add '' to here (this
}
}
+# duplicate from Moo::Object
+sub meta {
+ require Moo::HandleMoose::FakeMetaClass;
+ my $class = ref($_[0])||$_[0];
+ bless({ name => $class }, 'Moo::HandleMoose::FakeMetaClass');
+}
+
+sub unimport {
+ my $target = caller;
+ _unimport_coderefs($target, $INFO{$target});
+}
+
sub _maybe_reset_handlemoose {
my ($class, $target) = @_;
if ($INC{"Moo/HandleMoose.pm"}) {
sub _inhale_if_moose {
my ($self, $role) = @_;
_load_module($role);
- if (!$INFO{$role} and $INC{"Moose.pm"}) {
- if (my $meta = Class::MOP::class_of($role)) {
- $INFO{$role}{methods} = {
- map +($_ => $role->can($_)),
- grep !$meta->get_method($_)->isa('Class::MOP::Method::Meta'),
- $meta->get_method_list
- };
- $Role::Tiny::APPLIED_TO{$role} = {
- map +($_->name => 1), $meta->calculate_all_roles
- };
- $INFO{$role}{requires} = [ $meta->get_required_method_list ];
- $INFO{$role}{attributes} = [
- map +($_ => $meta->get_attribute($_)), $meta->get_attribute_list
- ];
- my $mods = $INFO{$role}{modifiers} = [];
- foreach my $type (qw(before after around)) {
- my $map = $meta->${\"get_${type}_method_modifiers_map"};
- foreach my $method (keys %$map) {
- foreach my $mod (@{$map->{$method}}) {
- push @$mods, [ $type => $method => $mod ];
+ my $meta;
+ if (!$INFO{$role}
+ and (
+ $INC{"Moose.pm"}
+ and $meta = Class::MOP::class_of($role)
+ and $meta->isa('Moose::Meta::Role')
+ )
+ or (
+ Mouse::Util->can('find_meta')
+ and $meta = Mouse::Util::find_meta($role)
+ and $meta->isa('Mouse::Meta::Role')
+ )
+ ) {
+ $INFO{$role}{methods} = {
+ map +($_ => $role->can($_)),
+ grep !$meta->get_method($_)->isa('Class::MOP::Method::Meta'),
+ $meta->get_method_list
+ };
+ $Role::Tiny::APPLIED_TO{$role} = {
+ map +($_->name => 1), $meta->calculate_all_roles
+ };
+ $INFO{$role}{requires} = [ $meta->get_required_method_list ];
+ $INFO{$role}{attributes} = [
+ map +($_ => do {
+ my $attr = $meta->get_attribute($_);
+ my $is_mouse = $meta->isa('Mouse::Meta::Role');
+ my $spec = { %{ $is_mouse ? $attr : $attr->original_options } };
+
+ if ($spec->{isa}) {
+
+ my $get_constraint = do {
+ my $pkg = $is_mouse
+ ? 'Mouse::Util::TypeConstraints'
+ : 'Moose::Util::TypeConstraints';
+ _load_module($pkg);
+ $pkg->can('find_or_create_isa_type_constraint');
+ };
+
+ my $tc = $get_constraint->($spec->{isa});
+ my $check = $tc->_compiled_type_constraint;
+
+ $spec->{isa} = sub {
+ &$check or die "Type constraint failed for $_[0]"
+ };
+
+ if ($spec->{coerce}) {
+
+ # Mouse has _compiled_type_coercion straight on the TC object
+ $spec->{coerce} = $tc->${\(
+ $tc->can('coercion')||sub { $_[0] }
+ )}->_compiled_type_coercion;
}
}
+ $spec;
+ }), $meta->get_attribute_list
+ ];
+ my $mods = $INFO{$role}{modifiers} = [];
+ foreach my $type (qw(before after around)) {
+ # Mouse pokes its own internals so we have to fall back to doing
+ # the same thing in the absence of the Moose API method
+ my $map = $meta->${\(
+ $meta->can("get_${type}_method_modifiers_map")
+ or sub { shift->{"${type}_method_modifiers"} }
+ )};
+ foreach my $method (keys %$map) {
+ foreach my $mod (@{$map->{$method}}) {
+ push @$mods, [ $type => $method => $mod ];
+ }
}
- require Class::Method::Modifiers if @$mods;
- $INFO{$role}{inhaled_from_moose} = 1;
}
+ require Class::Method::Modifiers if @$mods;
+ $INFO{$role}{inhaled_from_moose} = 1;
+ $INFO{$role}{is_role} = 1;
}
}
sub _maybe_make_accessors {
- my ($self, $role, $target) = @_;
+ my ($self, $target, $role) = @_;
my $m;
- if ($INFO{$role}{inhaled_from_moose}
- or $m = Moo->_accessor_maker_for($target)
+ if ($INFO{$role} && $INFO{$role}{inhaled_from_moose}
+ or $INC{"Moo.pm"}
+ and $m = Moo->_accessor_maker_for($target)
and ref($m) ne 'Method::Generate::Accessor') {
- $self->_make_accessors($role, $target);
+ $self->_make_accessors($target, $role);
}
}
sub _make_accessors_if_moose {
- my ($self, $role, $target) = @_;
- if ($INFO{$role}{inhaled_from_moose}) {
- $self->_make_accessors($role, $target);
+ my ($self, $target, $role) = @_;
+ if ($INFO{$role} && $INFO{$role}{inhaled_from_moose}) {
+ $self->_make_accessors($target, $role);
}
}
sub _make_accessors {
- my ($self, $role, $target) = @_;
+ my ($self, $target, $role) = @_;
my $acc_gen = ($Moo::MAKERS{$target}{accessor} ||= do {
require Method::Generate::Accessor;
Method::Generate::Accessor->new
}
}
+sub role_application_steps {
+ qw(_handle_constructor _maybe_make_accessors),
+ $_[0]->SUPER::role_application_steps;
+}
+
sub apply_roles_to_package {
my ($me, $to, @roles) = @_;
- $me->_inhale_if_moose($_) for @roles;
+ foreach my $role (@roles) {
+ $me->_inhale_if_moose($role);
+ die "${role} is not a Moo::Role" unless $INFO{$role};
+ }
$me->SUPER::apply_roles_to_package($to, @roles);
}
sub apply_single_role_to_package {
my ($me, $to, $role) = @_;
$me->_inhale_if_moose($role);
- $me->_handle_constructor($to, $INFO{$role}{attributes});
- $me->_maybe_make_accessors($role, $to);
+ die "${role} is not a Moo::Role" unless $INFO{$role};
$me->SUPER::apply_single_role_to_package($to, $role);
}
sub create_class_with_roles {
my ($me, $superclass, @roles) = @_;
- my $new_name = join(
- '__WITH__', $superclass, my $compose_name = join '__AND__', @roles
- );
+ my ($new_name, $compose_name) = $me->_composite_name($superclass, @roles);
return $new_name if $Role::Tiny::COMPOSED{class}{$new_name};
- $me->_inhale_if_moose($_) for @roles;
+ foreach my $role (@roles) {
+ $me->_inhale_if_moose($role);
+ }
my $m;
- if ($m = Moo->_accessor_maker_for($superclass)
+ if ($INC{"Moo.pm"}
+ and $m = Moo->_accessor_maker_for($superclass)
and ref($m) ne 'Method::Generate::Accessor') {
# old fashioned way time.
*{_getglob("${new_name}::ISA")} = [ $superclass ];
$me->SUPER::create_class_with_roles($superclass, @roles);
foreach my $role (@roles) {
- die "${role} is not a Role::Tiny" unless my $info = $INFO{$role};
+ die "${role} is not a Role::Tiny" unless $INFO{$role};
}
- $Moo::MAKERS{$new_name} = {};
+ $Moo::MAKERS{$new_name} = {is_class => 1};
- $me->_handle_constructor(
- $new_name, [ map @{$INFO{$_}{attributes}||[]}, @roles ], $superclass
- );
+ $me->_handle_constructor($new_name, $_) for @roles;
return $new_name;
}
+sub apply_roles_to_object {
+ my ($me, $object, @roles) = @_;
+ my $new = $me->SUPER::apply_roles_to_object($object, @roles);
+
+ my $apply_defaults = $APPLY_DEFAULTS{ref $new} ||= do {
+ my %attrs = map { @{$INFO{$_}{attributes}||[]} } @roles;
+
+ if ($INC{'Moo.pm'}
+ and keys %attrs
+ and my $con_gen = Moo->_constructor_maker_for(ref $new)
+ and my $m = Moo->_accessor_maker_for(ref $new)) {
+ require Sub::Quote;
+
+ my $specs = $con_gen->all_attribute_specs;
+
+ my $assign = '';
+ my %captures;
+ foreach my $name ( keys %attrs ) {
+ my $spec = $specs->{$name};
+ if ($m->has_eager_default($name, $spec)) {
+ my ($has, $has_cap)
+ = $m->generate_simple_has('$_[0]', $name, $spec);
+ my ($code, $pop_cap)
+ = $m->generate_use_default('$_[0]', $name, $spec, $has);
+
+ $assign .= $code;
+ @captures{keys %$has_cap, keys %$pop_cap}
+ = (values %$has_cap, values %$pop_cap);
+ }
+ }
+ Sub::Quote::quote_sub($assign, \%captures);
+ }
+ else {
+ sub {};
+ }
+ };
+ $new->$apply_defaults;
+ return $new;
+}
+
sub _composable_package_for {
my ($self, $role) = @_;
my $composed_name = 'Role::Tiny::_COMPOSABLE::'.$role;
return $composed_name if $Role::Tiny::COMPOSED{role}{$composed_name};
- $self->_make_accessors_if_moose($role, $composed_name);
+ $self->_make_accessors_if_moose($composed_name, $role);
$self->SUPER::_composable_package_for($role);
}
}
sub _handle_constructor {
- my ($me, $to, $attr_info, $superclass) = @_;
+ my ($me, $to, $role) = @_;
+ my $attr_info = $INFO{$role} && $INFO{$role}{attributes};
return unless $attr_info && @$attr_info;
if ($INFO{$to}) {
push @{$INFO{$to}{attributes}||=[]}, @$attr_info;
} else {
# only fiddle with the constructor if the target is a Moo class
if ($INC{"Moo.pm"}
- and my $con = Moo->_constructor_maker_for($to, $superclass)) {
+ and my $con = Moo->_constructor_maker_for($to)) {
# shallow copy of the specs since the constructor will assign an index
$con->register_attribute_specs(map ref() ? { %$_ } : $_, @$attr_info);
}
}
1;
+__END__
=head1 NAME
1;
-else where
+And elsewhere:
package Some::Class;
Declares an attribute for the class to be composed into. See
L<Moo/has> for all options.
+=head1 SUPPORT
+
+See L<Moo> for support and contact information.
+
=head1 AUTHORS
See L<Moo> for authors.
projects / gitmo/Moo.git / blobdiff