Module: Rum::Docker::AttrCallable

Included in:
Build, Image, Run
Defined in:
lib/rumrunner/docker.rb

Overview

Mixin to enable adding instance methods to a class that gets or sets-and-returns the given attr of the instance.

Instance Method Summary collapse

Instance Method Details

#attr_method_accessor(*args) ⇒ Object

Method to define a method-accessor for each argument supplied. When extended by a class

Example:

class Fizz
  extend AttrCallable
  attr_method_accessor :buzz
end

fizz = Fizz.new
fizz.buzz "foo"
fizz.buzz
# => "foo"



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# File 'lib/rumrunner/docker.rb', line 30

def attr_method_accessor(*args)
  args.each do |var|
    define_method var do |value = nil|
      if value.nil?
        instance_variable_get :"@#{var}"
      else
        instance_variable_set :"@#{var}", value
        self
      end
    end
  end
end