Module: Uber::InheritableAttr

Defined in:
lib/uber/inheritable_attr.rb

Defined Under Namespace

Classes: Clone

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.inherit_for(klass, name) ⇒ Object 



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# File 'lib/uber/inheritable_attr.rb', line 16

def self.inherit_for(klass, name)
  return unless klass.superclass.respond_to?(name)

  value = klass.superclass.send(name) # could be nil.
  Clone.(value) # this could be dynamic, allowing other inheritance strategies.
end

Instance Method Details

#inheritable_attr(name) ⇒ Object 



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# File 'lib/uber/inheritable_attr.rb', line 3

def inheritable_attr(name)
  instance_eval %Q{
    def #{name}=(v)
      @#{name} = v
    end

    def #{name}
      return @#{name} if instance_variable_defined?(:@#{name})
      @#{name} = InheritableAttribute.inherit_for(self, :#{name})
    end
  }
end