The final excision of #477: with zero in-repo callers left (all
tests/examples/docs migrated to `to_actor.run()` et al) the
entire legacy one-shot machinery drops out,
- `runtime/_supervise.py`: `ActorNursery.run_in_actor()`, the
`._cancel_after_result_on_exit` portal-set and the
`_reap_ria_portals()` teardown-reaper (both its happy-path
block-exit call AND the error-path snapshot + 0.5s-bounded
collection) are deleted — one-shot result-waiting now lives
entirely in the caller's task via `to_actor.run()`, whose
enclosing cancel-scope bounds the wait by construction (the
correct-scoping fix for the unbounded-reap hang class; the
`d1fb4a1a` guard test now passes structurally).
- `runtime/_portal.py`: `Portal._submit_for_result()`,
`._expect_result_ctx`, `._final_result_msg/_pld`,
`.wait_for_result()` + the deprecated `.result()` alias are
gone — a `Portal` no longer has any "main result" notion.
NB `Context.wait_for_result()` is a different (very alive)
API and is untouched.
- `spawn/_spawn.py`: `exhaust_portal()` +
`cancel_on_completion()` (the reaper tasks) deleted; backend
comment sweeps in `_trio.py`/`_mp.py`.
- `_exceptions.py`: the `NoResult` sentinel dies with its lone
reader.
- `tests/test_ringbuf.py`: drop a daemon-portal `.result()`
call that was already a warn + `NoResult` no-op (the ctx-acm
exit does the real result-wait); unshadow the 2nd `sctx` as
`rctx`.
- comment/docstring x-ref sweeps: `msg/types.py`,
`_context.py`, `to_actor/`, `tests/test_to_actor.py`.
Gate: `test_to_actor test_spawning test_cancellation
test_infected_asyncio test_local test_rpc` = 81 passed,
3 xfailed on `trio`; +`test_ringbuf` = 70 passed, 3 skipped,
3 xfailed on `mp_spawn`.
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Gud Boi
47bd1a2eb6