Moose::Meta::TypeConstraint::Role(3pm)
NAME
Moose::Meta::TypeConstraint::Role - Role/TypeConstraint parallel
hierarchy
DESCRIPTION
This class represents type constraints for a role.
INHERITANCE
"Moose::Meta::TypeConstraint::Role" is a subclass of
Moose::Meta::TypeConstraint.
METHODS
- Moose::Meta::TypeConstraint::Role->new(%options)
- This creates a new role type constraint based on the given
%options. - It takes the same options as its parent, with two exceptions.
First, it requires an additional option, "role", which is name of
the constraint's role. Second, it automatically sets the parent to the "Object" type. - The constructor also overrides the hand optimized type constraint
with one it creates internally. - $constraint->role
- Returns the role name associated with the constraint.
- $constraint->parents
- Returns all the type's parent types, corresponding to the roles
that its role does. - $constraint->is_subtype_of($type_name_or_object)
- If the given type is also a role type, then this checks that the
type's role does the other type's role. - Otherwise it falls back to the implementation in
Moose::Meta::TypeConstraint. - $constraint->create_child_type(%options)
- This returns a new Moose::Meta::TypeConstraint object with the type as its parent.
- Note that it does not return a "Moose::Meta::TypeConstraint::Role" object!
BUGS
See "BUGS" in Moose for details on reporting bugs.
AUTHOR
Yuval Kogman <nothingmuch@cpan.org>
COPYRIGHT AND LICENSE
Copyright 2006-2010 by Infinity Interactive, Inc.
<http://www.iinteractive.com>
- This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.