Vue: Access component object properties

I'm trying to use a statement within a element:

v-if="currentstep < maxStep"

The maxStep should be obtained from the number of components listed on my defauld export

  export default {
    name: 'step',
    data () {
      return {
        maxStep: 8,
        currentstep: 0
      }
    },
    components: {
      ConfigPublicador,
      ConfigServico,
      ModeloReceita,
      Integracoes,
      ConfigTema,
      ConfigApp,
      ConfigExtras,
      Assets,
      Revisao
    }
  }

Something like

maxStep = components.length

Any Ideias? Thanks