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131 .IX Title "Moose::Meta::TypeConstraint::Role 3"
132 .TH Moose::Meta::TypeConstraint::Role 3 "2009-11-19" "perl v5.8.7" "User Contributed Perl Documentation"
134 Moose::Meta::TypeConstraint::Role \- Role/TypeConstraint parallel hierarchy
136 .IX Header "DESCRIPTION"
137 This class represents type constraints for a role.
139 .IX Header "INHERITANCE"
140 \&\f(CW\*(C`Moose::Meta::TypeConstraint::Role\*(C'\fR is a subclass of
141 Moose::Meta::TypeConstraint.
144 .IP "\fBMoose::Meta::TypeConstraint::Role\->new(%options)\fR" 4
145 .IX Item "Moose::Meta::TypeConstraint::Role->new(%options)"
146 This creates a new role type constraint based on the given
149 It takes the same options as its parent, with two exceptions. First,
150 it requires an additional option, \f(CW\*(C`role\*(C'\fR, which is name of the
151 constraint's role. Second, it automatically sets the parent to the
152 \&\f(CW\*(C`Object\*(C'\fR type.
154 The constructor also overrides the hand optimized type constraint with
155 one it creates internally.
156 .IP "\fB$constraint\->role\fR" 4
157 .IX Item "$constraint->role"
158 Returns the role name associated with the constraint.
159 .IP "\fB$constraint\->parents\fR" 4
160 .IX Item "$constraint->parents"
161 Returns all the type's parent types, corresponding to the roles that
163 .IP "\fB$constraint\->is_subtype_of($type_name_or_object)\fR" 4
164 .IX Item "$constraint->is_subtype_of($type_name_or_object)"
165 If the given type is also a role type, then this checks that the
166 type's role does the other type's role.
168 Otherwise it falls back to the implementation in
169 Moose::Meta::TypeConstraint.
170 .IP "\fB$constraint\->create_child_type(%options)\fR" 4
171 .IX Item "$constraint->create_child_type(%options)"
172 This returns a new Moose::Meta::TypeConstraint object with the type
175 Note that it does \fInot\fR return a \f(CW\*(C`Moose::Meta::TypeConstraint::Role\*(C'\fR
179 All complex software has bugs lurking in it, and this module is no
180 exception. If you find a bug please either email me, or add the bug
184 Yuval Kogman <nothingmuch@cpan.org>
185 .SH "COPYRIGHT AND LICENSE"
186 .IX Header "COPYRIGHT AND LICENSE"
187 Copyright 2006\-2009 by Infinity Interactive, Inc.
189 <http://www.iinteractive.com>
191 This library is free software; you can redistribute it and/or modify
192 it under the same terms as Perl itself.