Function spawnChild

packages/core/src/actions/spawnChild.ts:194–236

(
  ...[
    src,
    { id, systemId, input, syncSnapshot = false } = {} as any
  ]: SpawnArguments<TContext, TExpressionEvent, TEvent, TActor>
)

      ];

export function spawnChild<
  TContext extends MachineContext,
  TExpressionEvent extends EventObject,
  TParams extends ParameterizedObject['params'] | undefined,
  TEvent extends EventObject,
  TActor extends ProvidedActor
>(
  ...[
    src,
    { id, systemId, input, syncSnapshot = false } = {} as any
  ]: SpawnArguments<TContext, TExpressionEvent, TEvent, TActor>
): ActionFunction<
  TContext,
  TExpressionEvent,
  TEvent,
  TParams,
  TActor,
  never,
  never,
  never,
  never
> {
  function spawnChild(
    _args: ActionArgs<TContext, TExpressionEvent, TEvent>,
    _params: TParams
  ) {
    if (isDevelopment) {
      throw new Error(`This isn't supposed to be called`);
    }
  }

  spawnChild.type = 'xstate.spawnChild';
  spawnChild.id = id;
  spawnChild.systemId = systemId;
  spawnChild.src = src;
  spawnChild.input = input;
  spawnChild.syncSnapshot = syncSnapshot;

  spawnChild.resolve = resolveSpawn;
  spawnChild.execute = executeSpawn;

  return spawnChild;
}