Class: Module

Inherits:
Object
  • Object
show all
Defined in:
lib/attribute_accessors.rb

Overview

Extends the module object with module and instance accessors for class attributes, just like the native attr* accessors for instance attributes.

Instance Method Summary collapse

Instance Method Details

#mattr_accessor(*syms) ⇒ Object 



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# File 'lib/attribute_accessors.rb', line 40

def mattr_accessor(*syms)
  mattr_reader(*syms)
  mattr_writer(*syms)
end

#mattr_reader(*syms) ⇒ Object

:nodoc:



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# File 'lib/attribute_accessors.rb', line 4

def mattr_reader(*syms)
  syms.each do |sym|
    class_eval(<<-EOS, __FILE__, __LINE__)
      unless defined? @@#{sym}
        @@#{sym} = nil
      end
      
      def self.#{sym}
        @@#{sym}
      end

      def #{sym}
        @@#{sym}
      end
    EOS
  end
end

#mattr_writer(*syms) ⇒ Object 



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# File 'lib/attribute_accessors.rb', line 22

def mattr_writer(*syms)
  syms.each do |sym|
    class_eval(<<-EOS, __FILE__, __LINE__)
      unless defined? @@#{sym}
        @@#{sym} = nil
      end
      
      def self.#{sym}=(obj)
        @@#{sym} = obj
      end

      def #{sym}=(obj)
        @@#{sym} = obj
      end
    EOS
  end
end