Module: Babby::MetaDSL::ClassMethods

Defined in:
lib/babby.rb

Instance Method Summary collapse

Instance Method Details

#apply_to(entity_method_name) ⇒ Object 



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# File 'lib/babby.rb', line 21

def apply_to entity_method_name
  # Set the name of the method to retrieve the entity bound to the instance, as a symbol
end

#dsl_method(name, type: nil) ⇒ Object 



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# File 'lib/babby.rb', line 25

def dsl_method name, type: nil
  state_type = type ? STATE_TYPE_MAP[type] : nil

  if type == :array
    define_singleton_method name do |value| # define 'setter' for derived class - i.e. DSL 'setup' method a la attr_accessor
      if not self.instance_variable_get "@#{name}"
        self.instance_variable_set "@#{name}", state_type ? state_type.new : nil
      end

      self.instance_variable_get("@#{name}").push(value)  # Set the underlying class instance variable to the desired value
    end
  else
    define_singleton_method name do |value| # define 'setter' for derived class - i.e. DSL 'setup' method a la attr_accessor
      if not self.instance_variable_get  "@#{name}"
        self.instance_variable_set "@#{name}", state_type ? state_type.new : nil
      end

      self.instance_variable_set "@#{name}", value  # Set the underlying class instance variable to the desired value
    end
  end

  define_singleton_method "get_#{name}".to_sym do
    self.instance_variable_get "@#{name}"
  end

  if type == :proc
    define_method name do
      proc = self.class.send "get_#{name}".to_sym
      proc.call(entity)
    end
  else
    define_method name do
      self.class.send "get_#{name}".to_sym
    end
  end
end