[core] Transition function #4954
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🦋 Changeset detectedLatest commit: 9ee7564 The changes in this PR will be included in the next version bump. This PR includes changesets to release 6 packages
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packages/core/src/stateUtils.ts
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| action.exec?.( | ||
| { | ||
| ...action.info, | ||
| self: actor, | ||
| system: actor.system | ||
| }, | ||
| action.params | ||
| ); |
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@davidkpiano this is missing action lookup in machine.implementations.actions. You can't rely on .exec being available if the goal is to have serializable actions. In fact, I'd probably just forbid combining inline actions with machine.executeAction. It should be an invariant that to use this API all actions must be declared explicitly in machine.implementations.actions. It's impossible to resolve an enqueued inline action, they are not discoverable in the static config at all. So it would be best to forbid all inline actions to make the rules clear around this.
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We fixed this, right?
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This PR adds the
transition(…)function for returning a[snapshot, actions]tuple given the machine, state, and event.Its main use-case is for server-side workflows and a pure way of handling state transitions for actor logic.