X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FMeta%2FTypeConstraint%2FRegistry.pm;h=abdc23d0d69806ea551eec71434480b410599a15;hb=e1d6f0a3c8cee0350b97695a2307af7004a1eb97;hp=b4229c1fcf1d98d920288119119a8eca6dc83733;hpb=0779da922a64aa891bc2708b6fc8de4d4fdffa11;p=gitmo%2FMoose.git

diff --git a/lib/Moose/Meta/TypeConstraint/Registry.pm b/lib/Moose/Meta/TypeConstraint/Registry.pm
index b4229c1..abdc23d 100644
--- a/lib/Moose/Meta/TypeConstraint/Registry.pm
+++ b/lib/Moose/Meta/TypeConstraint/Registry.pm
@@ -6,9 +6,10 @@ use warnings;
 use metaclass;
 
 use Scalar::Util 'blessed';
-use Carp         'confess';
+use Carp         'confess'; # FIXME Moose->throw_error
 
-our $VERSION   = '0.56';
+our $VERSION   = '0.61';
+$VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
 use base 'Class::MOP::Object';
@@ -32,16 +33,19 @@ sub new {
 
 sub has_type_constraint {
     my ($self, $type_name) = @_;
-    exists $self->type_constraints->{$type_name} ? 1 : 0
+    ($type_name and exists $self->type_constraints->{$type_name}) ? 1 : 0
 }
 
 sub get_type_constraint {
     my ($self, $type_name) = @_;
+    return unless defined $type_name; 
     $self->type_constraints->{$type_name}
 }
 
 sub add_type_constraint {
     my ($self, $type) = @_;
+    confess("No type supplied / type is not a valid type constraint") 
+        unless ($type && blessed $type && $type->isa('Moose::Meta::TypeConstraint'));
     $self->type_constraints->{$type->name} = $type;
 }
 
@@ -93,8 +97,15 @@ base Moose registry and base Moose types will automagically be found too).
 
 =item B<get_type_constraint ($type_name)>
 
+Returns a type constraint object from the registry by name. Will return
+false if the supplied type name cannot be found.
+
 =item B<add_type_constraint ($type)>
 
+Adds a type constraint object to the registry. Will throw an exception if
+no type is supplied, or the supplied object does not inherit from 
+L<Moose::Meta::TypeConstraint>
+
 =item B<find_type_constraint ($type_name)>
 
 =back