our $VERSION = '0.01';
+use Scalar::Util qw/blessed/;
+
use Sub::Name ();
use Any::Moose;
+use Any::Moose 'Util' => [ 'find_meta' ];
extends any_moose('Meta::TypeConstraint');
isa => 'CodeRef',
);
-=head2 C<parent_name>
+=head2 C<parent>
=cut
-has 'parent_name' => (
+has 'parent' => (
is => 'ro',
- isa => 'ClassName',
+ isa => any_moose('Meta::TypeConstraint'),
required => 1,
);
my ($orig, $class, %args) = @_;
unless (exists $args{mapper}) {
- $args{mapper} = sub { join '::', $_[0]->parent_name, $_[1] };
+ $args{mapper} = sub { join '::', $_[0]->parent->name, $_[1] };
}
my $parent = delete $args{parent};
- $args{parent_name} = defined $parent
- ? (blessed($parent) ? $parent->name : $parent)
- : '__ANON__';
+ unless (blessed $parent) {
+ $parent = find_meta($parent)->type_constraint;
+ }
+ __PACKAGE__->meta->find_attribute_by_name('parent')
+ ->type_constraint->assert_valid($parent);
+ $args{parent} = $parent;
- $args{user_constraint} = $args{constraint};
+ $args{user_constraint} = delete $args{constraint};
if (any_moose() eq 'Moose') {
$args{coercion} = Moose::Meta::TypeCoercion->new;
}
- my $parent_name = $args{parent_name};
- $parent_name =~ s/::+/_/g;
-
my $tc;
$args{constraint} = Sub::Name::subname('_load' => sub {
$tc->load(@_);
sub load {
my ($tc, $thing) = @_;
+ # When ->check is called inside coerce, a return value of 0 means that
+ # coercion should take place, while 1 signifies that the value is already
+ # OK.
+
# First, try a possible user defined constraint
my $user = $tc->user_constraint;
if (defined $user) {
return 1 if $ok;
}
- # When ->check is called inside coerce, a return value of 0 means that
- # coercion should take place, while 1 signifies that the value is already
- # OK.
+ # Then, try the parent constraint
+ return 1 if $tc->parent->check($thing);
+ # If $thing isn't even an object, don't bother trying to coerce it
my $class = blessed($thing);
- return 0 unless $class;
- return 1 if $class->isa($tc->parent_name);
+ return 0 unless defined $class;
+ # Find the file to autoload
my $mapper = $tc->mapper;
my $pm = $class = $tc->$mapper($class);
-
$pm =~ s{::}{/}g;
$pm .= '.pm';
return 0 if $INC{$pm}; # already loaded