statelyai/xstate @xstate/codemod@0.1.0-beta.1 on GitHub

Minor Changes

1148d89: xstate-codemod migrate accepts --json, which prints one JSON report to stdout. The command exits with code 2 when manual migration is needed, and the report lists each site under manualSites with its file, line, column, API, and hint.
A new report transform, report-suffixed-lifecycle-events, flags on keys written as xstate.done.state.<id>, xstate.done.actor.<id>, xstate.error.actor.<id>, or xstate.after.<delay>.<id>. v6 raises the plain event type with the id in a field, so those transitions never fire after migration. Another report transform, report-action-shapes, flags non-function entry and exit values, transition arrays, and transition actions, guard, and cond keys, which v6 rejects.
A new report transform, report-implementations, flags a second createMachine argument, which v6 ignores.
A new transform, lower-actions, rewrites v5 transitions with actions or guard, transition arrays, and entry/exit lists as v6 functions, converting assign, enqueueActions, raise, sendTo, sendParent, forwardTo, emit, log, cancel, stopChild, spawnChild, and, or, not, and stateIn, including named implementations and module-level constants defined in the same file. Named actions and guards keep their v5 signatures, and a named assign action becomes a function that returns a context patch. It also moves an object-literal second createMachine argument into the config and rewrites fromPromise(fn) as createAsyncLogic({ run: fn }). Code it cannot rewrite is left unchanged and reported.
```
// before
on: { INC: { target: 'active', guard: 'canInc', actions: assign({ count: ({ context }) => context.count + 1 }) } }
// after
on: {
  INC: (args) => {
    if (!args.guards.canInc(args)) return;
    return { target: 'active', context: { count: args.context.count + 1 } };
  }
}
```
types-to-schemas converts the per-key form types: { context: {} as C, events: {} as E }, builds an events map from same-file type aliases, and writes events: types<E>() for other event types instead of leaving types in place.
New baseline and verify commands check that a migrated machine behaves like the v5 original. baseline records a trace of generated event sequences under XState v5, and verify replays them against the v6 module and reports the diffs.
baseline and verify accept --input <file>, a JSON value passed as the machine's input. While a machine runs, Date.now(), performance.now(), and Math.random() return simulated, seeded values, so machines that store them in context compare equal, and a v5 root actor's sendParent error is classified as the intentional root-send-parent delta. --no-simple-paths skips the graph's simple paths when baseline times out.
```
npx @xstate/codemod baseline src/checkout.ts --out .xstate-migrate/checkout.json
npx @xstate/codemod migrate src/checkout.ts --json
# fix the reported manualSites
npx @xstate/codemod verify --baseline .xstate-migrate/checkout.json src/checkout.ts
```
migrate reports string literals that name v5 inspection event types (@xstate.snapshot, @xstate.event, @xstate.action, @xstate.microstep, @xstate.deadletter), which v6 never emits.

Patch Changes

Updated dependencies [599ec3c]
- xstate@6.0.0-beta.1