package MooseX::Types::TypeDecorator;
-our $VERSION = "0.25";
+
+#ABSTRACT: Wraps Moose::Meta::TypeConstraint objects with added features
use strict;
use warnings;
-
use Carp::Clan qw( ^MooseX::Types );
use Moose::Util::TypeConstraints ();
use Moose::Meta::TypeConstraint::Union;
);
-=head1 NAME
-
-MooseX::Types::TypeDecorator - More flexible access to a Type Constraint
-
=head1 DESCRIPTION
This is a decorator object that contains an underlying type constraint. We use
=cut
sub new {
- my $class = shift @_;
+ my $proto = shift;
+ if (ref($proto)) {
+ return $proto->_try_delegate('new', @_);
+ }
+ my $class = $proto;
if(my $arg = shift @_) {
if(blessed $arg && $arg->isa('Moose::Meta::TypeConstraint')) {
return bless {'__type_constraint'=>$arg}, $class;
=cut
sub isa {
- my ($self, $target) = @_;
- if(defined $target) {
- if(blessed $self) {
- return $self->__type_constraint->isa($target);
- } else {
- return;
- }
- } else {
- return;
- }
+ return 1 if $_[1]->isa('Moose::Meta::TypeConstraint');
+ shift->_try_delegate('isa', @_)
}
-
=head2 can
handle $self->can since AUTOLOAD can't.
=cut
-sub can {
- my ($self, $target) = @_;
- if(defined $target) {
- if(blessed $self) {
- return $self->__type_constraint->can($target);
- } else {
- return;
- }
- } else {
- return;
- }
-}
-
-=head2 meta
-
-have meta examine the underlying type constraints
-
-=cut
-
-sub meta {
- my $self = shift @_;
- if(blessed $self) {
- return $self->__type_constraint->meta;
- }
-}
+sub can { shift->_try_delegate('can', @_) }
=head2 _throw_error
=head2 AUTOLOAD
-Delegate to the decorator targe
+Delegate to the decorator target.
=cut
sub AUTOLOAD {
-
my ($self, @args) = @_;
my ($method) = (our $AUTOLOAD =~ /([^:]+)$/);
## We delegate with this method in an attempt to support a value of
## __type_constraint which is also AUTOLOADing, in particular the class
## MooseX::Types::UndefinedType which AUTOLOADs during autovivication.
-
- my $return;
-
- eval {
- $return = $self->__type_constraint->$method(@args);
- }; if($@) {
- __PACKAGE__->_throw_error($@);
- } else {
- return $return;
- }
-}
-=head1 AUTHOR
+ $self->_try_delegate($method, @args);
+}
-See L<MooseX::Types/AUTHOR>.
+sub _try_delegate {
+ my ($self, $method, @args) = @_;
+ my $tc = $self->__type_constraint;
+ my $inv = (
+ $tc->isa('Moose::Meta::TypeConstraint::Class')
+ ? (
+ $method eq 'new' || $tc->class->can($method)
+ ? $tc->class
+ : $tc
+ )
+ : $tc
+ );
+ $inv->$method(@args);
+}
=head1 LICENSE