feat: extract swactor-std crate with RuntimeExtension hook pattern
Debloat the core swactor crate by moving higher-level features to a new
swactor-std crate, leaving core with only the essential actor primitives
(spawn, send, stop, timers, lifecycle hooks).
Phase 1: Move Supervisor + Router to swactor-std
- Supervisor (ChildSpec, RestartPolicy, SupervisorStrategy) and Router
(RoutingStrategy) extracted to crates/std/
- ~465 lines removed from src/actor.rs
Phase 2: Remove restart fields from Actor<A>
- Actor<A> slimmed to { inner: A } — no restart_factory, max_restarts
- Removed spawn_restartable from Ctx and Runtime
- Simplified panic handler: always poison, never inline restart
- Supervision-based restart via Supervisor in swactor-std
Phase 3: RuntimeExtension trait + registry extraction
- New src/extension.rs: RuntimeExtension trait (on_actor_death,
cleanup_dead, as_any) — single hybrid hook for lifecycle events
- ContextInner slimmed from 11 methods to 5 (removed 7 registry
methods, added extension())
- Ctx slimmed: removed all registry methods, added extension() accessor
- Runtime: removed 3 registry fields + 9 methods, added
with_extension() builder + extension() accessor
- TickContext: replaced 3 registry fields with extension hook
- tick_once phase 7: uses ext.on_actor_death() + ext.cleanup_dead()
- Moved NameRegistry, MonitorRegistry, GroupRegistry from delivery.rs
to swactor-std
- StdExtension wraps the 3 registries, implements RuntimeExtension
- Extension traits: CtxMonitoring, CtxNaming, CtxGroups on Ctx;
RuntimeNaming, RuntimeGroups on Runtime
- Down, StopReason, MonitorRef, handle_down remain in core
- AddrMap/AddrSet/AddrBuildHasher made public, re-exported
- MonitorRef::from_raw(u64) added for cross-crate construction
All 140 tests pass. Benchmarks updated.
Authored by Claude, lovingly guided by Zachery Aaron Shores-Chmielewski
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