Class: LinkedObject

Inherits:
Object
  • Object
show all
Defined in:
lib/linkedobject/version.rb,
lib/linkedobject/linkedobject.rb

Overview

–

          DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                  Version 2, December 2004

          DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. You just DO WHAT THE FUCK YOU WANT TO.

++

Constant Summary collapse

VERSION = 
'0.1'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(val = nil, listeners = []) ⇒ LinkedObject

Returns a new instance of LinkedObject.



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# File 'lib/linkedobject/linkedobject.rb', line 14

def initialize(val = nil, listeners = [])
  @val = val
  @listeners = [self] + listeners
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object 



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# File 'lib/linkedobject/linkedobject.rb', line 57

def method_missing(method, *args, &block)
  if method =~ /with_\d_listeners?/
    n = method.to_s.scan(/with(_\d+_)?listeners?/).first.first[1..-2].to_i
    [self] + new_listeners(n, *args)
  else
    @listeners.each { |l| l.apply(method, *args) }
  end
end

Instance Attribute Details

#val ⇒ Object

Returns the value of attribute val.



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# File 'lib/linkedobject/linkedobject.rb', line 12

def val
  @val
end

Instance Method Details

#apply(method, *args) ⇒ Object 



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# File 'lib/linkedobject/linkedobject.rb', line 53

def apply(method, *args)
  @val = @val.send(method, *args)
end

#get_val ⇒ Object 



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# File 'lib/linkedobject/linkedobject.rb', line 39

def get_val
  @val
end

#inspect ⇒ Object 



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# File 'lib/linkedobject/linkedobject.rb', line 66

def inspect
  get_val
end

#is_listened_by(o) ⇒ Object Also known as: add_listener 



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# File 'lib/linkedobject/linkedobject.rb', line 35

def is_listened_by(o)
  @listeners << o
end

#new_listener(*args) ⇒ Object 



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# File 'lib/linkedobject/linkedobject.rb', line 19

def new_listener(*args)
  new_listeners(1, *args).first
end

#new_listeners(n, *args) ⇒ Object 



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# File 'lib/linkedobject/linkedobject.rb', line 23

def new_listeners(n, *args)
  [].tap do |listeners|
    n.times do
      listeners << self.class.new(*args).tap { |l| self.is_listened_by(l) }
    end
  end
end

#set_val(val) ⇒ Object Also known as: set 



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# File 'lib/linkedobject/linkedobject.rb', line 43

def set_val(val)
  @val = val
end

#with_listeners(n, *args) ⇒ Object 



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# File 'lib/linkedobject/linkedobject.rb', line 31

def with_listeners(n, *args)
  [self] + new_listeners(n, *args)
end