MechaCat02
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302c1df577
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feat(v1.1.9): invoke:: Rhai SDK module — sync re-entry + invoke_async
executor-core/sdk/invoke.rs adds `invoke()` and `invoke_async()` as
top-level Rhai helpers (no `::` namespace, mirroring the brief):
invoke(target, args) -> Dynamic (sync, returns callee's value)
invoke_async(target, args) -> String (fire-and-forget; returns execution_id)
Sync re-entry pattern:
- bridge captures Arc<Engine> via Engine::self_arc()
- calls engine.execute(&source, req) directly — same engine instance,
same Services, same Limits; only SdkCallCx changes per call
- runs inside the caller's spawn_blocking thread (no nested
spawn_blocking, no gate re-admission — the outer execution already
holds a permit)
Back-reference plumbing:
- Engine gains self_weak: OnceLock<Weak<Engine>> + set_self_weak() +
self_arc() accessor
- picloud binary calls engine.set_self_weak(Arc::downgrade(&engine))
right after construction
- register_all extended with limits + Option<Arc<Engine>> params
- Engine::execute_ast threads both through
Limits.trigger_depth_max added — mirrors TriggerConfig::max_trigger_depth.
Default 8; the picloud binary syncs from TriggerConfig::from_env() so
PICLOUD_MAX_TRIGGER_DEPTH governs both the dispatcher's fan-out cap and
the invoke depth bound.
Target parsing (string-first):
- "/api/foo" → InvokeTarget::Path
- 36-char UUID-like → InvokeTarget::Id (uuid::Uuid parse-validated)
- everything else → InvokeTarget::Name
Cross-app + depth + FnPtr guards:
- resolve() returns InvokeError::CrossApp if resolved.app_id != cx.app_id
- bridge throws "invoke: depth limit exceeded (max N)" when
cx.trigger_depth + 1 > limits.trigger_depth_max (checked BEFORE
resolve to avoid a wasted DB round-trip)
- args_to_json rejects FnPtr at any depth — closures don't survive
invoke boundaries
invoke_async path:
- calls services.invoke.enqueue_async() which writes an
OutboxSourceKind::Invoke row (commit 10 wires the dispatcher arm)
- returns the new ExecutionId as a string for caller tracking
Integration tests (sdk_invoke.rs, 6 binaries):
- sync invoke returns callee's value (script returns body.x + 1)
- cross-app invoke rejected (target in other app)
- depth limit exceeded (recursive script that calls itself; throws
before stack overflow)
- callee receives incremented depth in cx (smoke — strict assertion
needs ctx.trigger_depth surface, deferred to v1.2)
- args_to_json rejects FnPtr in payload
- invoke_async returns valid UUID string + queues args payload
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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2026-06-06 19:56:05 +02:00 |
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