Class: Class

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

Instance Method Summary collapse

Instance Method Details

#sattr_accessor(sym, options = {}) ⇒ Object 



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# File 'lib/sattr_accessor.rb', line 45

def sattr_accessor (sym, options = {})
  sattr_reader(sym, options)
  sattr_writer(sym)
end

#sattr_reader(sym, options = {}) ⇒ Object 



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# File 'lib/sattr_accessor.rb', line 3

def sattr_reader (sym, options = {})
  options = { :inheritable => false }.merge(options)
  class_eval(<<-EOS, __FILE__, __LINE__)
    def self.#{sym}
      @#{sym}
    end
    
    def #{sym}
      result = self.class.#{sym}
      #{
      "
      if result.is_a?(Array)
        # Get the value from our ancestor if there is one.
        if self.class.superclass.respond_to? :#{sym}
          result << self.class.superclass.#{sym} if self.class.superclass.#{sym}.is_a?(Array)
        end
        result.flatten!
      end
      if result.is_a?(Hash)
        # Get the value from our ancestor if there is one.
        if self.class.superclass.respond_to? :#{sym}
          result = self.class.superclass.#{sym}.merge(result) if self.class.superclass.#{sym}.is_a?(Hash)
        end
      end
      " if options[:inheritable] }
      result
    end
  EOS
end

#sattr_writer(sym) ⇒ Object 



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# File 'lib/sattr_accessor.rb', line 33

def sattr_writer (sym)
  class_eval %Q{
    def self.#{sym}= (value)
      @#{sym} = value
    end
    
    def #{sym}= (value)
      self.class.#{sym} = value
    end
  }
end