package
Mouse::Util::TypeConstraints;
+sub _generate_class_type_for{
+ my($for_class, $name) = @_;
+
+ my $predicate = sub{ Scalar::Util::blessd($_[0]) && $_[0]->isa($for_class) };
+
+ if(defined $name){
+ no strict 'refs';
+ *{ caller() . '::' . $name } = $predicate;
+ return;
+ }
+
+ return $predicate;
+}
+
+
sub Any { 1 }
sub Item { 1 }
-sub Maybe { 1 }
sub Bool { $_[0] ? $_[0] eq '1' : 1 }
sub Undef { !defined($_[0]) }