{
  "no codec": (() => {
    // A `FabricPrimitive` with no `[CODEC]` makes `codecOf()` throw, and the
    // renderer reports the class rather than the failure.
    class RoguePrimitive extends FabricPrimitive {}
    return new RoguePrimitive();
  })(),

  "no codec, name not an identifier": (() => {
    class RoguePrimitive extends FabricPrimitive {
      static name = "Rogue Primitive";
    }
    return new RoguePrimitive();
  })(),
}

--

no codec:
/RoguePrimitive(...)
/RoguePrimitive(...)
/RoguePrimitive(...)

no codec, name not an identifier:
/"Rogue Primitive"(...)
/"Rogue Primitive"(...)
/"Rogue Primitive"(...)