Module: Trax::Core::AbstractMethods::ClassMethods

Defined in:
lib/trax/core/abstract_methods.rb

Instance Method Summary collapse

Instance Method Details

#abstract_class_attribute(*method_names) ⇒ Object Also known as: abstract_class_attributes 



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# File 'lib/trax/core/abstract_methods.rb', line 25

def abstract_class_attribute(*method_names)
  _abstract_class_attributes.push(*method_names)
  class_attribute(*method_names)
end

#abstract_class_method(*method_names) ⇒ Object Also known as: abstract_class_methods 



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# File 'lib/trax/core/abstract_methods.rb', line 20

def abstract_class_method(*method_names)
  _abstract_class_methods.push(*method_names)
end

#abstract_method(*method_names) ⇒ Object Also known as: abstract_methods 



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# File 'lib/trax/core/abstract_methods.rb', line 15

def abstract_method(*method_names)
  _abstract_methods.push(*method_names)
end

#inherited(subklass) ⇒ Object 



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# File 'lib/trax/core/abstract_methods.rb', line 31

def inherited(subklass)
  klass = super(subklass)

  trace = ::TracePoint.new(:end) do |tracepoint|
    if tracepoint.self == subklass #modules also trace end we only care about the class end
      trace.disable

      if _abstract_methods.any?
        missing_instance_methods = ( Array(_abstract_methods) - subklass.instance_methods(false) )

        raise NotImplementedError, "#{subklass} must implement the following instance method(s) \n" \
                                   << "#{missing_instance_methods}" if missing_instance_methods.any?
      end

      if _abstract_class_methods.any?
        missing_class_methods = ( Array(_abstract_class_methods) - subklass.singleton_methods(false) )

        raise NotImplementedError, "#{subklass} must implement the following class method(s) \n" \
                                    << "#{missing_class_methods}" if missing_class_methods.any?
      end

      if _abstract_class_attributes.any?
        missing_class_attributes = _abstract_class_attributes.select{|_property| subklass.__send__(_property).blank? }

        raise NotImplementedError, "#{subklass} must set the following class attributes(s) \n" \
                                    << "#{missing_class_attributes}" if missing_class_attributes.any?
      end
    end
  end

  trace.enable

  klass
end