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资源说明：Curry your delegations with methods
[](https://travis-ci.org/RsrchBoy/moosex-currieddelegation)
[](http://cpants.charsbar.org/dist/overview/MooseX-CurriedDelegation)
[](https://coveralls.io/r/RsrchBoy/moosex-currieddelegation?branch=master)
# NAME
MooseX::CurriedDelegation - Curry your delegations with methods
# VERSION
This document describes version 0.003 of MooseX::CurriedDelegation - released November 09, 2016 as part of MooseX-CurriedDelegation.
# SYNOPSIS
use Moose;
use MooseX::CurriedDelegation;
has one => (is => 'ro', isa => 'Str', default => 'default');
has foo => (
is => 'rw',
isa => 'TestClass::Delagatee', # has method curried()
default => sub { TestClass::Delagatee->new },
handles => {
# method-curry
# Note the hashref, not arrayref, we employ
# first arg is the remote method to delegate to
# second is an arrayref comprising:
# coderef to call as a method on the instance, followed by
# "static" curry args
#
# so, essentially:
# $self->foo->remote_method($self->$coderef(), @remaining_args);
#
# foo_del_one => {
# remote_method => [ sub { ... }, qw{ static args } ],
# },
foo_del_one => { curried => [ sub { shift->one }, qw{ more curry args } ] },
# curry_to_self() always returns: sub { shift }
foo_del_two => { other_method => [ curry_to_self ] },
},
);
# DESCRIPTION
Method delegation is awfully handy -- but sometimes it'd be awfully handier if
it was a touch more dynamic. This is an attribute trait that provides for a
delegated method to be curried.
# USAGE
Using this package will cause the relevant attribute trait to be applied
without requiring further intervention. We use the standard
handles => { local_method => delegate_info, ... }
delegation methodology, however our currying is invoked when delegate\_info is
a hashref. We expect delegate info to look like:
{ remote_method => [ $coderef, @more_curry_args ] }
Only $coderef is ever executed by the delegation. This means that it is safe
to have any number of additional coderefs in @more\_curry\_args: they will be
passed through to remote\_method without additional manipulation.
# ADDITIONAL SUGAR
In addition, we export a number of helper functions.
## curry\_to\_self()
This function always returns a coderef like "sub { shift }". That is, this:
local => { remote => [ curry_to_self ] }
is equivalent to:
local => { remote => [ sub { shift } ] }
is equivalent to:
$self->attribute_accessor->remote($self)
# TRAIT ALIASES
## CurriedDelegation
Resolves out to the full name of our attribute trait; you can use it as:
has foo => (traits => [CurriedDelegation], ...)
# SEE ALSO
Please see those modules/websites for more information related to this module.
- [Moose](https://metacpan.org/pod/Moose)
- [Moose::Meta::Method::Delegation](https://metacpan.org/pod/Moose::Meta::Method::Delegation)
# BUGS
Please report any bugs or feature requests on the bugtracker website
[https://github.com/RsrchBoy/moosex-currieddelegation/issues](https://github.com/RsrchBoy/moosex-currieddelegation/issues)
When submitting a bug or request, please include a test-file or a
patch to an existing test-file that illustrates the bug or desired
feature.
# AUTHOR
Chris Weyl
## I'm a material boy in a material world
Please note **I do not expect to be gittip'ed or flattr'ed for this work**,
rather **it is simply a very pleasant surprise**. I largely create and release
works like this because I need them or I find it enjoyable; however, don't let
that stop you if you feel like it ;)
[Flattr](https://flattr.com/submit/auto?user_id=RsrchBoy&url=https%3A%2F%2Fgithub.com%2FRsrchBoy%2Fmoosex-currieddelegation&title=RsrchBoy's%20CPAN%20MooseX-CurriedDelegation&tags=%22RsrchBoy's%20MooseX-CurriedDelegation%20in%20the%20CPAN%22),
[Gratipay](https://gratipay.com/RsrchBoy/), or indulge my
[Amazon Wishlist](http://bit.ly/rsrchboys-wishlist)... If and \*only\* if you so desire.
# COPYRIGHT AND LICENSE
This software is Copyright (c) 2012 by Chris Weyl.
This is free software, licensed under:
The GNU Lesser General Public License, Version 2.1, February 1999
本源码包内暂不包含可直接显示的源代码文件，请下载源码包。
