;; lib/hyperscript/plugins/worker.sx — Worker plugin (stub)
;;
;; Phase 1 of the worker plugin: the registration formerly inlined in
;; lib/hyperscript/parser.sx (E39 stub) moves here. Behaviour is
;; identical — `worker MyWorker ...` raises a helpful error directing
;; users to the full plugin (not yet implemented).
;;
;; Phase 2 (future) replaces this stub with parse-worker-feat, a
;; compiler entry, hs-worker-define!, and the postMessage-based
;; method dispatch documented in plans/designs/hs-plugin-system.md §4a.

(define hs-worker-loaded? true)

(hs-register-feature!
  "worker"
  (fn
    (ctx)
    (error
      "worker plugin is not installed — see https://hyperscript.org/features/worker")))