X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FMeta%2FTypeConstraint%2FParameterized.pm;h=dc4f3836e415b6c8915a807e1e2daf16d7663a95;hb=d03bd989b97597428b460d7f9a021e2931893fa0;hp=7bbc54a8a6bd98e7713b5b0a168dee5e60ff5664;hpb=7e4e1ad46fd4c72845b18df57a80cdc03b47c4c4;p=gitmo%2FMoose.git

diff --git a/lib/Moose/Meta/TypeConstraint/Parameterized.pm b/lib/Moose/Meta/TypeConstraint/Parameterized.pm
index 7bbc54a..dc4f383 100644
--- a/lib/Moose/Meta/TypeConstraint/Parameterized.pm
+++ b/lib/Moose/Meta/TypeConstraint/Parameterized.pm
@@ -5,10 +5,11 @@ use warnings;
 use metaclass;
 
 use Scalar::Util 'blessed';
-use Carp         'confess';
 use Moose::Util::TypeConstraints;
+use Moose::Meta::TypeConstraint::Parameterizable;
 
-our $VERSION   = '0.02';
+our $VERSION   = '0.75_01';
+$VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
 use base 'Moose::Meta::TypeConstraint';
@@ -18,28 +19,52 @@ __PACKAGE__->meta->add_attribute('type_parameter' => (
     predicate => 'has_type_parameter',
 ));
 
+sub equals {
+    my ( $self, $type_or_name ) = @_;
+
+    my $other = Moose::Util::TypeConstraints::find_type_constraint($type_or_name);
+
+    return unless $other->isa(__PACKAGE__);
+
+    return (
+        $self->type_parameter->equals( $other->type_parameter )
+            and
+        $self->parent->equals( $other->parent )
+    );
+}
+
 sub compile_type_constraint {
     my $self = shift;
-    
-    ($self->has_type_parameter)
-        || confess "You cannot create a Higher Order type without a type parameter";
-        
+
+    unless ( $self->has_type_parameter ) {
+        require Moose;
+        Moose->throw_error("You cannot create a Higher Order type without a type parameter");
+    }
+
     my $type_parameter = $self->type_parameter;
-    
-    (blessed $type_parameter && $type_parameter->isa('Moose::Meta::TypeConstraint'))
-        || confess "The type parameter must be a Moose meta type";
+
+    unless ( blessed $type_parameter && $type_parameter->isa('Moose::Meta::TypeConstraint') ) {
+        require Moose;
+        Moose->throw_error("The type parameter must be a Moose meta type");
+    }
 
     foreach my $type (Moose::Util::TypeConstraints::get_all_parameterizable_types()) {
         if (my $constraint = $type->generate_constraint_for($self)) {
             $self->_set_constraint($constraint);
-            return $self->SUPER::compile_type_constraint;            
+            return $self->SUPER::compile_type_constraint;
         }
     }
-    
-    # if we get here, then we couldn't 
+
+    # if we get here, then we couldn't
     # find a way to parameterize this type
-    confess "The " . $self->name . " constraint cannot be used, because " 
-          . $self->parent->name . " doesn't subtype or coerce from a parameterizable type.";
+    require Moose;
+    Moose->throw_error("The " . $self->name . " constraint cannot be used, because "
+          . $self->parent->name . " doesn't subtype or coerce from a parameterizable type.");
+}
+
+sub create_child_type {
+    my ($self, %opts) = @_;
+    return Moose::Meta::TypeConstraint::Parameterizable->new(%opts, parent=>$self);
 }
 
 1;
@@ -51,25 +76,21 @@ __END__
 
 =head1 NAME
 
-Moose::Meta::TypeConstraint::Parameterized - Higher Order type constraints for Moose
+Moose::Meta::TypeConstraint::Parameterized - Type constraints with a bound parameter (ArrayRef[Int])
 
 =head1 METHODS
 
-=over 4
-
-=item B<compile_type_constraint>
-
-=item B<type_parameter>
-
-=item B<has_type_parameter>
+This class is intentionally not documented because the API is
+confusing and needs some work.
 
-=item B<meta>
+=head1 INHERITANCE
 
-=back
+C<Moose::Meta::TypeConstraint::Parameterized> is a subclass of
+L<Moose::Meta::TypeConstraint>.
 
 =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.
 
@@ -79,7 +100,7 @@ Stevan Little E<lt>stevan@iinteractive.comE<gt>
 
 =head1 COPYRIGHT AND LICENSE
 
-Copyright 2006-2008 by Infinity Interactive, Inc.
+Copyright 2006-2009 by Infinity Interactive, Inc.
 
 L<http://www.iinteractive.com>