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.IX Title "Sub::HandlesVia::Manual::WithMoo 3pm"
.TH Sub::HandlesVia::Manual::WithMoo 3pm "2023-04-09" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Sub::HandlesVia::Manual::WithMoo \- using Sub::HandlesVia with Moo
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\& package Kitchen {
\&   use Moo;
\&   use Sub::HandlesVia;
\&   use Types::Standard qw( ArrayRef Str );
\&   
\&   has food => (
\&     is          => \*(Aqro\*(Aq,
\&     isa         => ArrayRef[Str],
\&     handles_via => \*(AqArray\*(Aq,
\&     default     => sub { [] },
\&     handles     => {
\&       \*(Aqadd_food\*(Aq    => \*(Aqpush\*(Aq,
\&       \*(Aqfind_food\*(Aq   => \*(Aqgrep\*(Aq,
\&     },
\&   );
\& }
.Ve
.SH "MANUAL"
.IX Header "MANUAL"
Sub::HandlesVia allows you to delegate methods from your class to the
values of your objects' attributes.
.PP
Conceptually, it allows you to define \f(CW\*(C`$object\->push_number($n)\*(C'\fR
to be a shortcut for \f(CW\*(C`$object\->numbers\->push($n)\*(C'\fR except that
\&\f(CW\*(C`$object\->numbers\*(C'\fR is an arrayref, so doesn't have methods you
can call on it like \f(CW\*(C`push\*(C'\fR.
.PP
You should be able to use Sub::HandlesVia as a drop-in replacement for
MooX::HandlesVia, which provides a similar feature, though has a more
limited implementation. Sub::HandlesVia honours type constraints, plus it
can mutate non-reference values.
.SS "Which Methods Can Be Delegated To?"
.IX Subsection "Which Methods Can Be Delegated To?"
The \f(CW\*(C`handles_via\*(C'\fR option indicates which library of methods should be
available. Valid values include
Array,
Blessed,
Bool,
Code,
Counter,
Enum,
Hash,
Number,
Scalar, and
String.
.PP
An arrayref can be provided for \f(CW\*(C`handles_via\*(C'\fR, though many of the options
are conceptually contradictory.
.PP
.Vb 1
\& handles_via => [ \*(AqNumber\*(Aq, \*(AqScalar\*(Aq ]
.Ve
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs to
<https://github.com/tobyink/p5\-sub\-handlesvia/issues>.
.SS "Potential load order bugs"
.IX Subsection "Potential load order bugs"
Unlike Moose, Moo doesn't really offer much of an \s-1API\s0 for extensions.
As a result, most modules that provide extensions do so by wrapping the
Moo keywords (especially \f(CW\*(C`has\*(C'\fR). Sub::HandlesVia is no exception to this.
If you are using multiple Moo extensions, you may need to adjust the order
you \f(CW\*(C`use\*(C'\fR them for them to work properly together. In some combinations,
there may be no order that fully works!
.PP
Some known modules that should be imported \fIbefore\fR Sub::HandlesVia if
you're using them: MooX::Should.
.PP
Some known modules that should be imported \fIafter\fR Sub::HandlesVia if
you're using them: MooX::ProtectedAttributes.
.PP
Some known modules that conflict with Sub::HandlesVia: none so far!
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Misc advanced documentation:
Sub::HandlesVia::Manual::Advanced.
.PP
Sub::HandlesVia.
.PP
Documentation for delegatable methods:
Sub::HandlesVia::HandlerLibrary::Array,
Sub::HandlesVia::HandlerLibrary::Blessed,
Sub::HandlesVia::HandlerLibrary::Bool,
Sub::HandlesVia::HandlerLibrary::Code,
Sub::HandlesVia::HandlerLibrary::Counter,
Sub::HandlesVia::HandlerLibrary::Enum,
Sub::HandlesVia::HandlerLibrary::Hash,
Sub::HandlesVia::HandlerLibrary::Number,
Sub::HandlesVia::HandlerLibrary::Scalar, and
Sub::HandlesVia::HandlerLibrary::String.
.SH "AUTHOR"
.IX Header "AUTHOR"
Toby Inkster <tobyink@cpan.org>.
.SH "COPYRIGHT AND LICENCE"
.IX Header "COPYRIGHT AND LICENCE"
This software is copyright (c) 2022 by Toby Inkster.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
.SH "DISCLAIMER OF WARRANTIES"
.IX Header "DISCLAIMER OF WARRANTIES"
\&\s-1THIS PACKAGE IS PROVIDED \*(L"AS IS\*(R" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.\s0