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[catagits/Gitalist.git] / local-lib5 / man / man3 / Moose::Meta::TypeConstraint::Class.3pm

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.\"
.IX Title "Moose::Meta::TypeConstraint::Class 3"
.TH Moose::Meta::TypeConstraint::Class 3 "2009-11-19" "perl v5.8.7" "User Contributed Perl Documentation"
.SH "NAME"
Moose::Meta::TypeConstraint::Class \- Class/TypeConstraint parallel hierarchy
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This class represents type constraints for a class.
.SH "INHERITANCE"
.IX Header "INHERITANCE"
\&\f(CW\*(C`Moose::Meta::TypeConstraint::Class\*(C'\fR is a subclass of
Moose::Meta::TypeConstraint.
.SH "METHODS"
.IX Header "METHODS"
.IP "\fBMoose::Meta::TypeConstraint::Class\->new(%options)\fR" 4
.IX Item "Moose::Meta::TypeConstraint::Class->new(%options)"
This creates a new class type constraint based on the given
\&\f(CW%options\fR.
.Sp
It takes the same options as its parent, with two exceptions. First,
it requires an additional option, \f(CW\*(C`class\*(C'\fR, which is name of the
constraint's class.  Second, it automatically sets the parent to the
\&\f(CW\*(C`Object\*(C'\fR type.
.Sp
The constructor also overrides the hand optimized type constraint with
one it creates internally.
.IP "\fB$constraint\->class\fR" 4
.IX Item "$constraint->class"
Returns the class name associated with the constraint.
.IP "\fB$constraint\->parents\fR" 4
.IX Item "$constraint->parents"
Returns all the type's parent types, corresponding to its parent
classes.
.IP "\fB$constraint\->is_subtype_of($type_name_or_object)\fR" 4
.IX Item "$constraint->is_subtype_of($type_name_or_object)"
If the given type is also a class type, then this checks that the
type's class is a subclass of the other type's class.
.Sp
Otherwise it falls back to the implementation in
Moose::Meta::TypeConstraint.
.IP "\fB$constraint\->create_child_type(%options)\fR" 4
.IX Item "$constraint->create_child_type(%options)"
This returns a new Moose::Meta::TypeConstraint object with the type
as its parent.
.Sp
Note that it does \fInot\fR return a
\&\f(CW\*(C`Moose::Meta::TypeConstraint::Class\*(C'\fR object!
.IP "\fB$constraint\->get_message($value)\fR" 4
.IX Item "$constraint->get_message($value)"
This is the same as \*(L"get_message\*(R" in Moose::Meta::TypeConstraint except
that it explicitly says \f(CW\*(C`isa\*(C'\fR was checked. This is to help users deal
with accidentally autovivified type constraints.
.SH "BUGS"
.IX Header "BUGS"
All complex software has bugs lurking in it, and this module is no
exception. If you find a bug please either email me, or add the bug
to cpan\-RT.
.SH "AUTHOR"
.IX Header "AUTHOR"
Yuval Kogman <nothingmuch@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright 2006\-2009 by Infinity Interactive, Inc.
.PP
<http://www.iinteractive.com>
.PP
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.