auser-backcall

= Backcall Ari Lerner CitrusByte http://blog.citrusbyte.com

== DESCRIPTION:

• Backcall, Ari Lerner, Citrusbyte (http://blog.citrusbyte.com) - Simply add super lightweight, memory-efficient before and after callbacks.

== Basics

Simply require backcall require 'backcall'

And include callbacks in your classes include Backcall::Callbacks in your class

Then you can call before or after on any method, for instance:

class TestCallbacks
before :world, :hello after :world, :thanks def hello(caller) string << "hello " end def world string << "world" end def thanks(caller) string << ", thank you" end end

TestCallbacks.new.world => "hello world, thank you"

You can write callbacks currently in the following forms:

• before :world, :hello, :hi, :you
• before :world do puts "hello " end
• before :world, {:hello => "OutsideClass"}
• before :world, {:hello => OutsideClass}

Note on the last two: If you call the last style with a string, it expects the OutsideClass If you call the last one, your class with create a method that calls new on the class that you send to it, It will keep

== INSTALL:

gem install backcall

== LICENSE:

(The MIT License)

Copyright (c) 2008 Ari Lerner. CitrusByte

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.