svoid dm_onTopInput(VF1<S> r) {
  dm_ownResource(vmBus_onMessage('topInput, voidfunc(fS s) enter {
    callF(r, s)
  }));
}

svoid dm_onTopInput(VF1<S> r) {
  dm_ownResource(vmBus_onMessage('topInput, dm_rEnter(r)));
}