X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FMeta%2FTypeConstraint%2FParameterizable.pm;h=4fdfbe69696b73d463fd23678d2aab049a485099;hb=08380fdb9f79107ab7aaf353edd03757ad3e8400;hp=7f7300495dc365e15dab14d8070c26da90f53989;hpb=eaa35e6e0f9132abf6ed0cec60515dd7259ce704;p=gitmo%2FMoose.git

diff --git a/lib/Moose/Meta/TypeConstraint/Parameterizable.pm b/lib/Moose/Meta/TypeConstraint/Parameterizable.pm
index 7f73004..4fdfbe6 100644
--- a/lib/Moose/Meta/TypeConstraint/Parameterizable.pm
+++ b/lib/Moose/Meta/TypeConstraint/Parameterizable.pm
@@ -4,10 +4,13 @@ use strict;
 use warnings;
 use metaclass;
 
-our $VERSION   = '0.50';
+our $VERSION   = '0.57';
+$VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
 use base 'Moose::Meta::TypeConstraint';
+use Moose::Meta::TypeConstraint::Parameterized;
+use Moose::Util::TypeConstraints ();
 
 __PACKAGE__->meta->add_attribute('constraint_generator' => (
     accessor  => 'constraint_generator',
@@ -39,6 +42,26 @@ sub _can_coerce_constraint_from {
     };
 }
 
+sub parse_parameter_str {
+    my ($self, $type_str) = @_;
+    return Moose::Util::TypeConstraints::find_or_create_isa_type_constraint($type_str);
+}
+
+sub parameterize {
+	my ($self, $contained_tc) = @_;
+
+	if($contained_tc->isa('Moose::Meta::TypeConstraint')) {
+        my $tc_name = $self->name .'['. $contained_tc->name .']';        
+        return Moose::Meta::TypeConstraint::Parameterized->new(
+            name           => $tc_name,
+            parent         => $self,
+            type_parameter => $contained_tc,
+        );			
+	} else {
+        Moose->throw_error("The type parameter must be a Moose meta type");
+    }
+}
+
 
 1;
 
@@ -61,6 +84,14 @@ Moose::Meta::TypeConstraint::Parameterizable - Higher Order type constraints for
 
 =item B<generate_constraint_for>
 
+=item B<parse_parameter_str>
+
+Given a string, convert it to a Perl structure.
+
+=item B<parameterize>
+
+Given an array of type constraints, parameterize the current type constraint.
+
 =item B<meta>
 
 =back