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Facilitate adding proxies to your classes by leveraging method_missing proxy pattern
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README.textile

Proxy Party

Greatly facilitates adding proxies through the proxy method_missing pattern.
Can now also dynamically add proxy methods and use other amazing meta strategies!

Install

$ gem install party_proxy

Use

require 'party_proxy'

Latest news

Now supports renaming of proxy method so you can avoid method name collisions!

TODO

Major DRYing up needed. Currently a lot of code duplication :O

Usage

  class State
    attr_accessor :name

    def initialize(name)
      @name = name    
    end  
  end  

  class Info
    attr_accessor :text

    def initialize(text)
      @text = text    
    end  
  end  

  module Party 
    class Subject
      # proxy state and info objects to make their methods 
      # directly accessible from subject objects
      proxy :state, :info

      def initialize(name)
        @state = State.new name
        @info = Info.new 'hello'      
      end
    end
  end   
  describe Party::Proxy do
    describe '#proxy' do
      it "proxies state and info so it can call name directly on subject" do
        subject = Party::Subject.new 'kristian'
        subject.name.should == 'kristian'
      end
    end

    describe '#proxy_for' do
      it "proxies speak_it! on mic" do
        subject = Party::Subject.new 'kristian'
        subject.mic = Mic.new 'hello'
        Party::Subject.proxy_for :mic, :speak_it! 

        subject.proxy_for :mic, :speak_it!

        subject.speak_it!.should == 'hello'
      end

      it "proxies speak_it! as speak_up! on mic" do
        subject = Party::Subject.new 'kristian'
        subject.mic = Mic.new 'hello'
        Party::Subject.proxy_for :mic, :rename => {:speak_it! => :speak_up!}
        subject.speak_up!.should == 'hello'
      end
    end

    describe '#proxy_accessor_for' do  
      it "proxies speak accessor methods on mic" do
        subject = Party::Subject.new 'kristian'
        subject.mic = Mic.new 'hello'

        # multi
        subject.proxy_accessors_for :mic, :speak, :miau

        # single
        subject.proxy_accessor_for :mic, :speak
        subject.proxy_accessor_for :mic => :speak

        subject.speak = 'do it!'
        subject.speak.should == 'do it!'
      end 

      it "proxies speak accessor method on mic as yell" do
        subject = Party::Subject.new 'kristian'
        subject.mic = Mic.new 'hello'
        subject.proxy_accessors_for :mic, :rename => {:speak => :yell}
        subject.yell = 'do it!'
        subject.yell.should == 'do it!'
      end 
    end

    describe '#named_proxies' do  
      it "proxies select :mic and :state methods" do
        subject = Party::Subject.new 'kristian'
        subject.mic = Mic.new 'hello'
        subject.named_proxies :mic => :speak, :state => :name
        subject.speak = 'do it!'
        subject.speak.should == 'do it!'

        subject.name = 'kris'
        subject.name.should == 'kris'
      end 
    end
  end    

Note on Patches/Pull Requests

  • Fork the project.
  • Make your feature addition or bug fix.
  • Add tests for it. This is important so I don’t break it in a
    future version unintentionally.
  • Commit, do not mess with rakefile, version, or history.
    (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
  • Send me a pull request. Bonus points for topic branches.

Copyright

Copyright © 2010 Kristian Mandrup. See LICENSE for details.

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