Module: Mayu::VDOM::Marshalling

Extended by:
T::Sig
Defined in:
lib/mayu/vdom/marshalling.rb

Class Method Summary collapse

Class Method Details

.dump(vtree) ⇒ Object 



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# File 'lib/mayu/vdom/marshalling.rb', line 9

def self.dump(vtree)
  Marshal.dump(vtree)
end

.dump_props(props) ⇒ Object 



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# File 'lib/mayu/vdom/marshalling.rb', line 54

def self.dump_props(props)
  props.transform_values { |value| dump_value(value) }
end

.dump_state(state) ⇒ Object 



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# File 'lib/mayu/vdom/marshalling.rb', line 59

def self.dump_state(state)
  state.transform_values { |value| dump_value(value) }
end

.dump_value(value) ⇒ Object 



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# File 'lib/mayu/vdom/marshalling.rb', line 64

def self.dump_value(value)
  case value
  when Hash
    value.transform_values { dump_value(_1) }
  when Array
    value.map { dump_value(_1) }
  when Component
    ComponentMarshaler.new(value)
  else
    value
  end
end

.restore(dumped, session:, task: Async::Task.current) ⇒ Object 



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# File 'lib/mayu/vdom/marshalling.rb', line 18

def self.restore(dumped, session:, task: Async::Task.current)
  vtree =
    Marshal.restore(
      dumped,
      ->(obj) do
        case obj
        when VDOM::VTree
          obj.instance_variable_set(:@session, session)
          obj.instance_variable_set(:@task, task)
          obj
        when VDOM::ComponentMarshaler
          case obj.type
          in klass:
            klass
          in component:
            T.cast(
              session.environment.resources.load_resource(component).type,
              Resources::Types::Component
            ).component
          else
            obj.type
          end
        else
          obj
        end
      end
    )

  vtree.root&.traverse do |vnode|
    vnode.instance_variable_set(:@vtree, vtree)
  end

  vtree
end