Module: AmazonProductAdvertisingApi::CoreExtensions::Class

Defined in:
lib/amazon_product_advertising_api/support.rb

Instance Method Summary collapse

Instance Method Details

#cattr_accessor(sym) ⇒ Object

Pleasant syntax for Class attribute accessors.



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# File 'lib/amazon_product_advertising_api/support.rb', line 36

def cattr_accessor(sym)
  cattr_reader(sym)
  cattr_writer(sym)
end

#cattr_reader(sym) ⇒ Object

Pleasant syntax for Class attribute readers.



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# File 'lib/amazon_product_advertising_api/support.rb', line 6

def cattr_reader(sym)
  class_eval(<<-EOS, __FILE__, __LINE__)
    unless defined? @@#{sym}  # unless defined? @@hair_colors
      @@#{sym} = nil          #   @@hair_colors = nil
    end                       # end
                              #
    def self.#{sym}           # def self.hair_colors
      @@#{sym}                #   @@hair_colors
    end                       # end
                              #
    def #{sym}                # def hair_colors
      @@#{sym}                #   @@hair_colors
    end                       # end
  EOS
end

#cattr_writer(sym) ⇒ Object

Pleasant syntax for Class attribute writers.



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# File 'lib/amazon_product_advertising_api/support.rb', line 23

def cattr_writer(sym)
  class_eval(<<-EOS, __FILE__, __LINE__)
    unless defined? @@#{sym}                       # unless defined? @@hair_colors
      @@#{sym} = nil                               #   @@hair_colors = nil
    end                                            # end
                                                   #
    def self.#{sym}=(obj)                          # def self.hair_colors=(obj)
      @@#{sym} = obj                               #   @@hair_colors = obj
    end                                            # end
  EOS
end