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- import { __assign, __spreadArray, __read, __values, __rest } from './_virtual/_tslib.js';
- import { isFunction, mapValues, isArray, flatten, toArray, toStateValue, isString, getEventType, toSCXMLEvent, matchesState, path, evaluateGuard, mapContext, isRaisableAction, pathToStateValue, isBuiltInEvent, partition, updateHistoryValue, toStatePath, mapFilterValues, warn, toStatePaths, nestedPath, normalizeTarget, toGuard, toTransitionConfigArray, isMachine, createInvokeId } from './utils.js';
- import { State, stateValuesEqual } from './State.js';
- import { start as start$1, stop as stop$1, invoke, update, nullEvent } from './actionTypes.js';
- import { done, start, toActionObjects, raise, stop, resolveActions, doneInvoke, error, toActionObject, toActivityDefinition, after, send, cancel, initEvent } from './actions.js';
- import { IS_PRODUCTION } from './environment.js';
- import { STATE_DELIMITER } from './constants.js';
- import { getAllStateNodes, getConfiguration, isInFinalState, getTagsFromConfiguration, has, getChildren, getValue, isLeafNode, getAllChildren } from './stateUtils.js';
- import { createInvocableActor } from './Actor.js';
- import { toInvokeDefinition } from './invokeUtils.js';
- var NULL_EVENT = '';
- var STATE_IDENTIFIER = '#';
- var WILDCARD = '*';
- var EMPTY_OBJECT = {};
- var isStateId = function (str) {
- return str[0] === STATE_IDENTIFIER;
- };
- var createDefaultOptions = function () {
- return {
- actions: {},
- guards: {},
- services: {},
- activities: {},
- delays: {}
- };
- };
- var validateArrayifiedTransitions = function (stateNode, event, transitions) {
- var hasNonLastUnguardedTarget = transitions.slice(0, -1).some(function (transition) {
- return !('cond' in transition) && !('in' in transition) && (isString(transition.target) || isMachine(transition.target));
- });
- var eventText = event === NULL_EVENT ? 'the transient event' : "event '".concat(event, "'");
- warn(!hasNonLastUnguardedTarget, "One or more transitions for ".concat(eventText, " on state '").concat(stateNode.id, "' are unreachable. ") + "Make sure that the default transition is the last one defined.");
- };
- var StateNode =
- /*#__PURE__*/
- /** @class */
- function () {
- function StateNode(
- /**
- * The raw config used to create the machine.
- */
- config, options,
- /**
- * The initial extended state
- */
- _context, // TODO: this is unsafe, but we're removing it in v5 anyway
- _stateInfo) {
- if (_context === void 0) {
- _context = 'context' in config ? config.context : undefined;
- }
- var _this = this;
- var _a;
- this.config = config;
- this._context = _context;
- /**
- * The order this state node appears. Corresponds to the implicit SCXML document order.
- */
- this.order = -1;
- this.__xstatenode = true;
- this.__cache = {
- events: undefined,
- relativeValue: new Map(),
- initialStateValue: undefined,
- initialState: undefined,
- on: undefined,
- transitions: undefined,
- candidates: {},
- delayedTransitions: undefined
- };
- this.idMap = {};
- this.tags = [];
- this.options = Object.assign(createDefaultOptions(), options);
- this.parent = _stateInfo === null || _stateInfo === void 0 ? void 0 : _stateInfo.parent;
- this.key = this.config.key || (_stateInfo === null || _stateInfo === void 0 ? void 0 : _stateInfo.key) || this.config.id || '(machine)';
- this.machine = this.parent ? this.parent.machine : this;
- this.path = this.parent ? this.parent.path.concat(this.key) : [];
- this.delimiter = this.config.delimiter || (this.parent ? this.parent.delimiter : STATE_DELIMITER);
- this.id = this.config.id || __spreadArray([this.machine.key], __read(this.path), false).join(this.delimiter);
- this.version = this.parent ? this.parent.version : this.config.version;
- this.type = this.config.type || (this.config.parallel ? 'parallel' : this.config.states && Object.keys(this.config.states).length ? 'compound' : this.config.history ? 'history' : 'atomic');
- this.schema = this.parent ? this.machine.schema : (_a = this.config.schema) !== null && _a !== void 0 ? _a : {};
- this.description = this.config.description;
- if (!IS_PRODUCTION) {
- warn(!('parallel' in this.config), "The \"parallel\" property is deprecated and will be removed in version 4.1. ".concat(this.config.parallel ? "Replace with `type: 'parallel'`" : "Use `type: '".concat(this.type, "'`"), " in the config for state node '").concat(this.id, "' instead."));
- }
- this.initial = this.config.initial;
- this.states = this.config.states ? mapValues(this.config.states, function (stateConfig, key) {
- var _a;
- var stateNode = new StateNode(stateConfig, {}, undefined, {
- parent: _this,
- key: key
- });
- Object.assign(_this.idMap, __assign((_a = {}, _a[stateNode.id] = stateNode, _a), stateNode.idMap));
- return stateNode;
- }) : EMPTY_OBJECT; // Document order
- var order = 0;
- function dfs(stateNode) {
- var e_1, _a;
- stateNode.order = order++;
- try {
- for (var _b = __values(getAllChildren(stateNode)), _c = _b.next(); !_c.done; _c = _b.next()) {
- var child = _c.value;
- dfs(child);
- }
- } catch (e_1_1) {
- e_1 = {
- error: e_1_1
- };
- } finally {
- try {
- if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
- } finally {
- if (e_1) throw e_1.error;
- }
- }
- }
- dfs(this); // History config
- this.history = this.config.history === true ? 'shallow' : this.config.history || false;
- this._transient = !!this.config.always || (!this.config.on ? false : Array.isArray(this.config.on) ? this.config.on.some(function (_a) {
- var event = _a.event;
- return event === NULL_EVENT;
- }) : NULL_EVENT in this.config.on);
- this.strict = !!this.config.strict; // TODO: deprecate (entry)
- this.onEntry = toArray(this.config.entry || this.config.onEntry).map(function (action) {
- return toActionObject(action);
- }); // TODO: deprecate (exit)
- this.onExit = toArray(this.config.exit || this.config.onExit).map(function (action) {
- return toActionObject(action);
- });
- this.meta = this.config.meta;
- this.doneData = this.type === 'final' ? this.config.data : undefined;
- this.invoke = toArray(this.config.invoke).map(function (invokeConfig, i) {
- var _a, _b;
- if (isMachine(invokeConfig)) {
- var invokeId = createInvokeId(_this.id, i);
- _this.machine.options.services = __assign((_a = {}, _a[invokeId] = invokeConfig, _a), _this.machine.options.services);
- return toInvokeDefinition({
- src: invokeId,
- id: invokeId
- });
- } else if (isString(invokeConfig.src)) {
- var invokeId = invokeConfig.id || createInvokeId(_this.id, i);
- return toInvokeDefinition(__assign(__assign({}, invokeConfig), {
- id: invokeId,
- src: invokeConfig.src
- }));
- } else if (isMachine(invokeConfig.src) || isFunction(invokeConfig.src)) {
- var invokeId = invokeConfig.id || createInvokeId(_this.id, i);
- _this.machine.options.services = __assign((_b = {}, _b[invokeId] = invokeConfig.src, _b), _this.machine.options.services);
- return toInvokeDefinition(__assign(__assign({
- id: invokeId
- }, invokeConfig), {
- src: invokeId
- }));
- } else {
- var invokeSource = invokeConfig.src;
- return toInvokeDefinition(__assign(__assign({
- id: createInvokeId(_this.id, i)
- }, invokeConfig), {
- src: invokeSource
- }));
- }
- });
- this.activities = toArray(this.config.activities).concat(this.invoke).map(function (activity) {
- return toActivityDefinition(activity);
- });
- this.transition = this.transition.bind(this);
- this.tags = toArray(this.config.tags); // TODO: this is the real fix for initialization once
- // state node getters are deprecated
- // if (!this.parent) {
- // this._init();
- // }
- }
- StateNode.prototype._init = function () {
- if (this.__cache.transitions) {
- return;
- }
- getAllStateNodes(this).forEach(function (stateNode) {
- return stateNode.on;
- });
- };
- /**
- * Clones this state machine with custom options and context.
- *
- * @param options Options (actions, guards, activities, services) to recursively merge with the existing options.
- * @param context Custom context (will override predefined context)
- */
- StateNode.prototype.withConfig = function (options, context) {
- var _a = this.options,
- actions = _a.actions,
- activities = _a.activities,
- guards = _a.guards,
- services = _a.services,
- delays = _a.delays;
- return new StateNode(this.config, {
- actions: __assign(__assign({}, actions), options.actions),
- activities: __assign(__assign({}, activities), options.activities),
- guards: __assign(__assign({}, guards), options.guards),
- services: __assign(__assign({}, services), options.services),
- delays: __assign(__assign({}, delays), options.delays)
- }, context !== null && context !== void 0 ? context : this.context);
- };
- /**
- * Clones this state machine with custom context.
- *
- * @param context Custom context (will override predefined context, not recursive)
- */
- StateNode.prototype.withContext = function (context) {
- return new StateNode(this.config, this.options, context);
- };
- Object.defineProperty(StateNode.prototype, "context", {
- get: function () {
- return isFunction(this._context) ? this._context() : this._context;
- },
- enumerable: false,
- configurable: true
- });
- Object.defineProperty(StateNode.prototype, "definition", {
- /**
- * The well-structured state node definition.
- */
- get: function () {
- return {
- id: this.id,
- key: this.key,
- version: this.version,
- context: this.context,
- type: this.type,
- initial: this.initial,
- history: this.history,
- states: mapValues(this.states, function (state) {
- return state.definition;
- }),
- on: this.on,
- transitions: this.transitions,
- entry: this.onEntry,
- exit: this.onExit,
- activities: this.activities || [],
- meta: this.meta,
- order: this.order || -1,
- data: this.doneData,
- invoke: this.invoke,
- description: this.description,
- tags: this.tags
- };
- },
- enumerable: false,
- configurable: true
- });
- StateNode.prototype.toJSON = function () {
- return this.definition;
- };
- Object.defineProperty(StateNode.prototype, "on", {
- /**
- * The mapping of events to transitions.
- */
- get: function () {
- if (this.__cache.on) {
- return this.__cache.on;
- }
- var transitions = this.transitions;
- return this.__cache.on = transitions.reduce(function (map, transition) {
- map[transition.eventType] = map[transition.eventType] || [];
- map[transition.eventType].push(transition);
- return map;
- }, {});
- },
- enumerable: false,
- configurable: true
- });
- Object.defineProperty(StateNode.prototype, "after", {
- get: function () {
- return this.__cache.delayedTransitions || (this.__cache.delayedTransitions = this.getDelayedTransitions(), this.__cache.delayedTransitions);
- },
- enumerable: false,
- configurable: true
- });
- Object.defineProperty(StateNode.prototype, "transitions", {
- /**
- * All the transitions that can be taken from this state node.
- */
- get: function () {
- return this.__cache.transitions || (this.__cache.transitions = this.formatTransitions(), this.__cache.transitions);
- },
- enumerable: false,
- configurable: true
- });
- StateNode.prototype.getCandidates = function (eventName) {
- if (this.__cache.candidates[eventName]) {
- return this.__cache.candidates[eventName];
- }
- var transient = eventName === NULL_EVENT;
- var candidates = this.transitions.filter(function (transition) {
- var sameEventType = transition.eventType === eventName; // null events should only match against eventless transitions
- return transient ? sameEventType : sameEventType || transition.eventType === WILDCARD;
- });
- this.__cache.candidates[eventName] = candidates;
- return candidates;
- };
- /**
- * All delayed transitions from the config.
- */
- StateNode.prototype.getDelayedTransitions = function () {
- var _this = this;
- var afterConfig = this.config.after;
- if (!afterConfig) {
- return [];
- }
- var mutateEntryExit = function (delay, i) {
- var delayRef = isFunction(delay) ? "".concat(_this.id, ":delay[").concat(i, "]") : delay;
- var eventType = after(delayRef, _this.id);
- _this.onEntry.push(send(eventType, {
- delay: delay
- }));
- _this.onExit.push(cancel(eventType));
- return eventType;
- };
- var delayedTransitions = isArray(afterConfig) ? afterConfig.map(function (transition, i) {
- var eventType = mutateEntryExit(transition.delay, i);
- return __assign(__assign({}, transition), {
- event: eventType
- });
- }) : flatten(Object.keys(afterConfig).map(function (delay, i) {
- var configTransition = afterConfig[delay];
- var resolvedTransition = isString(configTransition) ? {
- target: configTransition
- } : configTransition;
- var resolvedDelay = !isNaN(+delay) ? +delay : delay;
- var eventType = mutateEntryExit(resolvedDelay, i);
- return toArray(resolvedTransition).map(function (transition) {
- return __assign(__assign({}, transition), {
- event: eventType,
- delay: resolvedDelay
- });
- });
- }));
- return delayedTransitions.map(function (delayedTransition) {
- var delay = delayedTransition.delay;
- return __assign(__assign({}, _this.formatTransition(delayedTransition)), {
- delay: delay
- });
- });
- };
- /**
- * Returns the state nodes represented by the current state value.
- *
- * @param state The state value or State instance
- */
- StateNode.prototype.getStateNodes = function (state) {
- var _a;
- var _this = this;
- if (!state) {
- return [];
- }
- var stateValue = state instanceof State ? state.value : toStateValue(state, this.delimiter);
- if (isString(stateValue)) {
- var initialStateValue = this.getStateNode(stateValue).initial;
- return initialStateValue !== undefined ? this.getStateNodes((_a = {}, _a[stateValue] = initialStateValue, _a)) : [this, this.states[stateValue]];
- }
- var subStateKeys = Object.keys(stateValue);
- var subStateNodes = [this];
- subStateNodes.push.apply(subStateNodes, __spreadArray([], __read(flatten(subStateKeys.map(function (subStateKey) {
- return _this.getStateNode(subStateKey).getStateNodes(stateValue[subStateKey]);
- }))), false));
- return subStateNodes;
- };
- /**
- * Returns `true` if this state node explicitly handles the given event.
- *
- * @param event The event in question
- */
- StateNode.prototype.handles = function (event) {
- var eventType = getEventType(event);
- return this.events.includes(eventType);
- };
- /**
- * Resolves the given `state` to a new `State` instance relative to this machine.
- *
- * This ensures that `.events` and `.nextEvents` represent the correct values.
- *
- * @param state The state to resolve
- */
- StateNode.prototype.resolveState = function (state) {
- var stateFromConfig = state instanceof State ? state : State.create(state);
- var configuration = Array.from(getConfiguration([], this.getStateNodes(stateFromConfig.value)));
- return new State(__assign(__assign({}, stateFromConfig), {
- value: this.resolve(stateFromConfig.value),
- configuration: configuration,
- done: isInFinalState(configuration, this),
- tags: getTagsFromConfiguration(configuration),
- machine: this.machine
- }));
- };
- StateNode.prototype.transitionLeafNode = function (stateValue, state, _event) {
- var stateNode = this.getStateNode(stateValue);
- var next = stateNode.next(state, _event);
- if (!next || !next.transitions.length) {
- return this.next(state, _event);
- }
- return next;
- };
- StateNode.prototype.transitionCompoundNode = function (stateValue, state, _event) {
- var subStateKeys = Object.keys(stateValue);
- var stateNode = this.getStateNode(subStateKeys[0]);
- var next = stateNode._transition(stateValue[subStateKeys[0]], state, _event);
- if (!next || !next.transitions.length) {
- return this.next(state, _event);
- }
- return next;
- };
- StateNode.prototype.transitionParallelNode = function (stateValue, state, _event) {
- var e_2, _a;
- var transitionMap = {};
- try {
- for (var _b = __values(Object.keys(stateValue)), _c = _b.next(); !_c.done; _c = _b.next()) {
- var subStateKey = _c.value;
- var subStateValue = stateValue[subStateKey];
- if (!subStateValue) {
- continue;
- }
- var subStateNode = this.getStateNode(subStateKey);
- var next = subStateNode._transition(subStateValue, state, _event);
- if (next) {
- transitionMap[subStateKey] = next;
- }
- }
- } catch (e_2_1) {
- e_2 = {
- error: e_2_1
- };
- } finally {
- try {
- if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
- } finally {
- if (e_2) throw e_2.error;
- }
- }
- var stateTransitions = Object.keys(transitionMap).map(function (key) {
- return transitionMap[key];
- });
- var enabledTransitions = flatten(stateTransitions.map(function (st) {
- return st.transitions;
- }));
- var willTransition = stateTransitions.some(function (st) {
- return st.transitions.length > 0;
- });
- if (!willTransition) {
- return this.next(state, _event);
- }
- var configuration = flatten(Object.keys(transitionMap).map(function (key) {
- return transitionMap[key].configuration;
- }));
- return {
- transitions: enabledTransitions,
- exitSet: flatten(stateTransitions.map(function (t) {
- return t.exitSet;
- })),
- configuration: configuration,
- source: state,
- actions: flatten(Object.keys(transitionMap).map(function (key) {
- return transitionMap[key].actions;
- }))
- };
- };
- StateNode.prototype._transition = function (stateValue, state, _event) {
- // leaf node
- if (isString(stateValue)) {
- return this.transitionLeafNode(stateValue, state, _event);
- } // hierarchical node
- if (Object.keys(stateValue).length === 1) {
- return this.transitionCompoundNode(stateValue, state, _event);
- } // orthogonal node
- return this.transitionParallelNode(stateValue, state, _event);
- };
- StateNode.prototype.getTransitionData = function (state, event) {
- return this._transition(state.value, state, toSCXMLEvent(event));
- };
- StateNode.prototype.next = function (state, _event) {
- var e_3, _a;
- var _this = this;
- var eventName = _event.name;
- var actions = [];
- var nextStateNodes = [];
- var selectedTransition;
- try {
- for (var _b = __values(this.getCandidates(eventName)), _c = _b.next(); !_c.done; _c = _b.next()) {
- var candidate = _c.value;
- var cond = candidate.cond,
- stateIn = candidate.in;
- var resolvedContext = state.context;
- var isInState = stateIn ? isString(stateIn) && isStateId(stateIn) ? // Check if in state by ID
- state.matches(toStateValue(this.getStateNodeById(stateIn).path, this.delimiter)) : // Check if in state by relative grandparent
- matchesState(toStateValue(stateIn, this.delimiter), path(this.path.slice(0, -2))(state.value)) : true;
- var guardPassed = false;
- try {
- guardPassed = !cond || evaluateGuard(this.machine, cond, resolvedContext, _event, state);
- } catch (err) {
- throw new Error("Unable to evaluate guard '".concat(cond.name || cond.type, "' in transition for event '").concat(eventName, "' in state node '").concat(this.id, "':\n").concat(err.message));
- }
- if (guardPassed && isInState) {
- if (candidate.target !== undefined) {
- nextStateNodes = candidate.target;
- }
- actions.push.apply(actions, __spreadArray([], __read(candidate.actions), false));
- selectedTransition = candidate;
- break;
- }
- }
- } catch (e_3_1) {
- e_3 = {
- error: e_3_1
- };
- } finally {
- try {
- if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
- } finally {
- if (e_3) throw e_3.error;
- }
- }
- if (!selectedTransition) {
- return undefined;
- }
- if (!nextStateNodes.length) {
- return {
- transitions: [selectedTransition],
- exitSet: [],
- configuration: state.value ? [this] : [],
- source: state,
- actions: actions
- };
- }
- var allNextStateNodes = flatten(nextStateNodes.map(function (stateNode) {
- return _this.getRelativeStateNodes(stateNode, state.historyValue);
- }));
- var isInternal = !!selectedTransition.internal;
- return {
- transitions: [selectedTransition],
- exitSet: isInternal ? [] : flatten(nextStateNodes.map(function (targetNode) {
- return _this.getPotentiallyReenteringNodes(targetNode);
- })),
- configuration: allNextStateNodes,
- source: state,
- actions: actions
- };
- }; // even though the name of this function mentions reentry nodes
- // we are pushing its result into `exitSet`
- // that's because what we exit might be reentered (it's an invariant of reentrancy)
- StateNode.prototype.getPotentiallyReenteringNodes = function (targetNode) {
- if (this.order < targetNode.order) {
- return [this];
- }
- var nodes = [];
- var marker = this;
- var possibleAncestor = targetNode;
- while (marker && marker !== possibleAncestor) {
- nodes.push(marker);
- marker = marker.parent;
- }
- if (marker !== possibleAncestor) {
- // we never got to `possibleAncestor`, therefore the initial `marker` "escapes" it
- // it's in a different part of the tree so no states will be reentered for such an external transition
- return [];
- }
- nodes.push(possibleAncestor);
- return nodes;
- };
- StateNode.prototype.getActions = function (resolvedConfig, isDone, transition, currentContext, _event, prevState, predictableExec) {
- var e_4, _a, e_5, _b;
- var _this = this;
- var prevConfig = prevState ? getConfiguration([], this.getStateNodes(prevState.value)) : [];
- var entrySet = new Set();
- try {
- for (var _c = __values(Array.from(resolvedConfig).sort(function (a, b) {
- return a.order - b.order;
- })), _d = _c.next(); !_d.done; _d = _c.next()) {
- var sn = _d.value;
- if (!has(prevConfig, sn) || has(transition.exitSet, sn) || sn.parent && entrySet.has(sn.parent)) {
- entrySet.add(sn);
- }
- }
- } catch (e_4_1) {
- e_4 = {
- error: e_4_1
- };
- } finally {
- try {
- if (_d && !_d.done && (_a = _c.return)) _a.call(_c);
- } finally {
- if (e_4) throw e_4.error;
- }
- }
- try {
- for (var prevConfig_1 = __values(prevConfig), prevConfig_1_1 = prevConfig_1.next(); !prevConfig_1_1.done; prevConfig_1_1 = prevConfig_1.next()) {
- var sn = prevConfig_1_1.value;
- if (!has(resolvedConfig, sn) || has(transition.exitSet, sn.parent)) {
- transition.exitSet.push(sn);
- }
- }
- } catch (e_5_1) {
- e_5 = {
- error: e_5_1
- };
- } finally {
- try {
- if (prevConfig_1_1 && !prevConfig_1_1.done && (_b = prevConfig_1.return)) _b.call(prevConfig_1);
- } finally {
- if (e_5) throw e_5.error;
- }
- }
- transition.exitSet.sort(function (a, b) {
- return b.order - a.order;
- });
- var entryStates = Array.from(entrySet).sort(function (a, b) {
- return a.order - b.order;
- });
- var exitStates = new Set(transition.exitSet);
- var doneEvents = flatten(entryStates.map(function (sn) {
- var events = [];
- if (sn.type !== 'final') {
- return events;
- }
- var parent = sn.parent;
- if (!parent.parent) {
- return events;
- }
- events.push(done(sn.id, sn.doneData), // TODO: deprecate - final states should not emit done events for their own state.
- done(parent.id, sn.doneData ? mapContext(sn.doneData, currentContext, _event) : undefined));
- var grandparent = parent.parent;
- if (grandparent.type === 'parallel') {
- if (getChildren(grandparent).every(function (parentNode) {
- return isInFinalState(transition.configuration, parentNode);
- })) {
- events.push(done(grandparent.id));
- }
- }
- return events;
- }));
- var entryActions = entryStates.map(function (stateNode) {
- var entryActions = stateNode.onEntry;
- var invokeActions = stateNode.activities.map(function (activity) {
- return start(activity);
- });
- return {
- type: 'entry',
- actions: toActionObjects(predictableExec ? __spreadArray(__spreadArray([], __read(entryActions), false), __read(invokeActions), false) : __spreadArray(__spreadArray([], __read(invokeActions), false), __read(entryActions), false), _this.machine.options.actions)
- };
- }).concat({
- type: 'state_done',
- actions: doneEvents.map(function (event) {
- return raise(event);
- })
- });
- var exitActions = Array.from(exitStates).map(function (stateNode) {
- return {
- type: 'exit',
- actions: toActionObjects(__spreadArray(__spreadArray([], __read(stateNode.onExit), false), __read(stateNode.activities.map(function (activity) {
- return stop(activity);
- })), false), _this.machine.options.actions)
- };
- });
- var actions = exitActions.concat({
- type: 'transition',
- actions: toActionObjects(transition.actions, this.machine.options.actions)
- }).concat(entryActions);
- if (isDone) {
- var stopActions = toActionObjects(flatten(__spreadArray([], __read(resolvedConfig), false).sort(function (a, b) {
- return b.order - a.order;
- }).map(function (stateNode) {
- return stateNode.onExit;
- })), this.machine.options.actions).filter(function (action) {
- return !isRaisableAction(action);
- });
- return actions.concat({
- type: 'stop',
- actions: stopActions
- });
- }
- return actions;
- };
- /**
- * Determines the next state given the current `state` and sent `event`.
- *
- * @param state The current State instance or state value
- * @param event The event that was sent at the current state
- * @param context The current context (extended state) of the current state
- */
- StateNode.prototype.transition = function (state, event, context, exec) {
- if (state === void 0) {
- state = this.initialState;
- }
- var _event = toSCXMLEvent(event);
- var currentState;
- if (state instanceof State) {
- currentState = context === undefined ? state : this.resolveState(State.from(state, context));
- } else {
- var resolvedStateValue = isString(state) ? this.resolve(pathToStateValue(this.getResolvedPath(state))) : this.resolve(state);
- var resolvedContext = context !== null && context !== void 0 ? context : this.machine.context;
- currentState = this.resolveState(State.from(resolvedStateValue, resolvedContext));
- }
- if (!IS_PRODUCTION && _event.name === WILDCARD) {
- throw new Error("An event cannot have the wildcard type ('".concat(WILDCARD, "')"));
- }
- if (this.strict) {
- if (!this.events.includes(_event.name) && !isBuiltInEvent(_event.name)) {
- throw new Error("Machine '".concat(this.id, "' does not accept event '").concat(_event.name, "'"));
- }
- }
- var stateTransition = this._transition(currentState.value, currentState, _event) || {
- transitions: [],
- configuration: [],
- exitSet: [],
- source: currentState,
- actions: []
- };
- var prevConfig = getConfiguration([], this.getStateNodes(currentState.value));
- var resolvedConfig = stateTransition.configuration.length ? getConfiguration(prevConfig, stateTransition.configuration) : prevConfig;
- stateTransition.configuration = __spreadArray([], __read(resolvedConfig), false);
- return this.resolveTransition(stateTransition, currentState, currentState.context, exec, _event);
- };
- StateNode.prototype.resolveRaisedTransition = function (state, _event, originalEvent, predictableExec) {
- var _a;
- var currentActions = state.actions;
- state = this.transition(state, _event, undefined, predictableExec); // Save original event to state
- // TODO: this should be the raised event! Delete in V5 (breaking)
- state._event = originalEvent;
- state.event = originalEvent.data;
- (_a = state.actions).unshift.apply(_a, __spreadArray([], __read(currentActions), false));
- return state;
- };
- StateNode.prototype.resolveTransition = function (stateTransition, currentState, context, predictableExec, _event) {
- var e_6, _a, e_7, _b;
- var _this = this;
- if (_event === void 0) {
- _event = initEvent;
- }
- var configuration = stateTransition.configuration; // Transition will "apply" if:
- // - this is the initial state (there is no current state)
- // - OR there are transitions
- var willTransition = !currentState || stateTransition.transitions.length > 0;
- var resolvedConfiguration = willTransition ? stateTransition.configuration : currentState ? currentState.configuration : [];
- var isDone = isInFinalState(resolvedConfiguration, this);
- var resolvedStateValue = willTransition ? getValue(this.machine, configuration) : undefined;
- var historyValue = currentState ? currentState.historyValue ? currentState.historyValue : stateTransition.source ? this.machine.historyValue(currentState.value) : undefined : undefined;
- var actionBlocks = this.getActions(new Set(resolvedConfiguration), isDone, stateTransition, context, _event, currentState, predictableExec);
- var activities = currentState ? __assign({}, currentState.activities) : {};
- try {
- for (var actionBlocks_1 = __values(actionBlocks), actionBlocks_1_1 = actionBlocks_1.next(); !actionBlocks_1_1.done; actionBlocks_1_1 = actionBlocks_1.next()) {
- var block = actionBlocks_1_1.value;
- try {
- for (var _c = (e_7 = void 0, __values(block.actions)), _d = _c.next(); !_d.done; _d = _c.next()) {
- var action = _d.value;
- if (action.type === start$1) {
- activities[action.activity.id || action.activity.type] = action;
- } else if (action.type === stop$1) {
- activities[action.activity.id || action.activity.type] = false;
- }
- }
- } catch (e_7_1) {
- e_7 = {
- error: e_7_1
- };
- } finally {
- try {
- if (_d && !_d.done && (_b = _c.return)) _b.call(_c);
- } finally {
- if (e_7) throw e_7.error;
- }
- }
- }
- } catch (e_6_1) {
- e_6 = {
- error: e_6_1
- };
- } finally {
- try {
- if (actionBlocks_1_1 && !actionBlocks_1_1.done && (_a = actionBlocks_1.return)) _a.call(actionBlocks_1);
- } finally {
- if (e_6) throw e_6.error;
- }
- }
- var _e = __read(resolveActions(this, currentState, context, _event, actionBlocks, predictableExec, this.machine.config.predictableActionArguments || this.machine.config.preserveActionOrder), 2),
- resolvedActions = _e[0],
- updatedContext = _e[1];
- var _f = __read(partition(resolvedActions, isRaisableAction), 2),
- raisedEvents = _f[0],
- nonRaisedActions = _f[1];
- var invokeActions = resolvedActions.filter(function (action) {
- var _a;
- return action.type === start$1 && ((_a = action.activity) === null || _a === void 0 ? void 0 : _a.type) === invoke;
- });
- var children = invokeActions.reduce(function (acc, action) {
- acc[action.activity.id] = createInvocableActor(action.activity, _this.machine, updatedContext, _event);
- return acc;
- }, currentState ? __assign({}, currentState.children) : {});
- var nextState = new State({
- value: resolvedStateValue || currentState.value,
- context: updatedContext,
- _event: _event,
- // Persist _sessionid between states
- _sessionid: currentState ? currentState._sessionid : null,
- historyValue: resolvedStateValue ? historyValue ? updateHistoryValue(historyValue, resolvedStateValue) : undefined : currentState ? currentState.historyValue : undefined,
- history: !resolvedStateValue || stateTransition.source ? currentState : undefined,
- actions: resolvedStateValue ? nonRaisedActions : [],
- activities: resolvedStateValue ? activities : currentState ? currentState.activities : {},
- events: [],
- configuration: resolvedConfiguration,
- transitions: stateTransition.transitions,
- children: children,
- done: isDone,
- tags: getTagsFromConfiguration(resolvedConfiguration),
- machine: this
- });
- var didUpdateContext = context !== updatedContext;
- nextState.changed = _event.name === update || didUpdateContext; // Dispose of penultimate histories to prevent memory leaks
- var history = nextState.history;
- if (history) {
- delete history.history;
- } // There are transient transitions if the machine is not in a final state
- // and if some of the state nodes have transient ("always") transitions.
- var hasAlwaysTransitions = !isDone && (this._transient || configuration.some(function (stateNode) {
- return stateNode._transient;
- })); // If there are no enabled transitions, check if there are transient transitions.
- // If there are transient transitions, continue checking for more transitions
- // because an transient transition should be triggered even if there are no
- // enabled transitions.
- //
- // If we're already working on an transient transition then stop to prevent an infinite loop.
- //
- // Otherwise, if there are no enabled nor transient transitions, we are done.
- if (!willTransition && (!hasAlwaysTransitions || _event.name === NULL_EVENT)) {
- return nextState;
- }
- var maybeNextState = nextState;
- if (!isDone) {
- if (hasAlwaysTransitions) {
- maybeNextState = this.resolveRaisedTransition(maybeNextState, {
- type: nullEvent
- }, _event, predictableExec);
- }
- while (raisedEvents.length) {
- var raisedEvent = raisedEvents.shift();
- maybeNextState = this.resolveRaisedTransition(maybeNextState, raisedEvent._event, _event, predictableExec);
- }
- } // Detect if state changed
- var changed = maybeNextState.changed || (history ? !!maybeNextState.actions.length || didUpdateContext || typeof history.value !== typeof maybeNextState.value || !stateValuesEqual(maybeNextState.value, history.value) : undefined);
- maybeNextState.changed = changed; // Preserve original history after raised events
- maybeNextState.history = history;
- return maybeNextState;
- };
- /**
- * Returns the child state node from its relative `stateKey`, or throws.
- */
- StateNode.prototype.getStateNode = function (stateKey) {
- if (isStateId(stateKey)) {
- return this.machine.getStateNodeById(stateKey);
- }
- if (!this.states) {
- throw new Error("Unable to retrieve child state '".concat(stateKey, "' from '").concat(this.id, "'; no child states exist."));
- }
- var result = this.states[stateKey];
- if (!result) {
- throw new Error("Child state '".concat(stateKey, "' does not exist on '").concat(this.id, "'"));
- }
- return result;
- };
- /**
- * Returns the state node with the given `stateId`, or throws.
- *
- * @param stateId The state ID. The prefix "#" is removed.
- */
- StateNode.prototype.getStateNodeById = function (stateId) {
- var resolvedStateId = isStateId(stateId) ? stateId.slice(STATE_IDENTIFIER.length) : stateId;
- if (resolvedStateId === this.id) {
- return this;
- }
- var stateNode = this.machine.idMap[resolvedStateId];
- if (!stateNode) {
- throw new Error("Child state node '#".concat(resolvedStateId, "' does not exist on machine '").concat(this.id, "'"));
- }
- return stateNode;
- };
- /**
- * Returns the relative state node from the given `statePath`, or throws.
- *
- * @param statePath The string or string array relative path to the state node.
- */
- StateNode.prototype.getStateNodeByPath = function (statePath) {
- if (typeof statePath === 'string' && isStateId(statePath)) {
- try {
- return this.getStateNodeById(statePath.slice(1));
- } catch (e) {// try individual paths
- // throw e;
- }
- }
- var arrayStatePath = toStatePath(statePath, this.delimiter).slice();
- var currentStateNode = this;
- while (arrayStatePath.length) {
- var key = arrayStatePath.shift();
- if (!key.length) {
- break;
- }
- currentStateNode = currentStateNode.getStateNode(key);
- }
- return currentStateNode;
- };
- /**
- * Resolves a partial state value with its full representation in this machine.
- *
- * @param stateValue The partial state value to resolve.
- */
- StateNode.prototype.resolve = function (stateValue) {
- var _a;
- var _this = this;
- if (!stateValue) {
- return this.initialStateValue || EMPTY_OBJECT; // TODO: type-specific properties
- }
- switch (this.type) {
- case 'parallel':
- return mapValues(this.initialStateValue, function (subStateValue, subStateKey) {
- return subStateValue ? _this.getStateNode(subStateKey).resolve(stateValue[subStateKey] || subStateValue) : EMPTY_OBJECT;
- });
- case 'compound':
- if (isString(stateValue)) {
- var subStateNode = this.getStateNode(stateValue);
- if (subStateNode.type === 'parallel' || subStateNode.type === 'compound') {
- return _a = {}, _a[stateValue] = subStateNode.initialStateValue, _a;
- }
- return stateValue;
- }
- if (!Object.keys(stateValue).length) {
- return this.initialStateValue || {};
- }
- return mapValues(stateValue, function (subStateValue, subStateKey) {
- return subStateValue ? _this.getStateNode(subStateKey).resolve(subStateValue) : EMPTY_OBJECT;
- });
- default:
- return stateValue || EMPTY_OBJECT;
- }
- };
- StateNode.prototype.getResolvedPath = function (stateIdentifier) {
- if (isStateId(stateIdentifier)) {
- var stateNode = this.machine.idMap[stateIdentifier.slice(STATE_IDENTIFIER.length)];
- if (!stateNode) {
- throw new Error("Unable to find state node '".concat(stateIdentifier, "'"));
- }
- return stateNode.path;
- }
- return toStatePath(stateIdentifier, this.delimiter);
- };
- Object.defineProperty(StateNode.prototype, "initialStateValue", {
- get: function () {
- var _a;
- if (this.__cache.initialStateValue) {
- return this.__cache.initialStateValue;
- }
- var initialStateValue;
- if (this.type === 'parallel') {
- initialStateValue = mapFilterValues(this.states, function (state) {
- return state.initialStateValue || EMPTY_OBJECT;
- }, function (stateNode) {
- return !(stateNode.type === 'history');
- });
- } else if (this.initial !== undefined) {
- if (!this.states[this.initial]) {
- throw new Error("Initial state '".concat(this.initial, "' not found on '").concat(this.key, "'"));
- }
- initialStateValue = isLeafNode(this.states[this.initial]) ? this.initial : (_a = {}, _a[this.initial] = this.states[this.initial].initialStateValue, _a);
- } else {
- // The finite state value of a machine without child states is just an empty object
- initialStateValue = {};
- }
- this.__cache.initialStateValue = initialStateValue;
- return this.__cache.initialStateValue;
- },
- enumerable: false,
- configurable: true
- });
- StateNode.prototype.getInitialState = function (stateValue, context) {
- this._init(); // TODO: this should be in the constructor (see note in constructor)
- var configuration = this.getStateNodes(stateValue);
- return this.resolveTransition({
- configuration: configuration,
- exitSet: [],
- transitions: [],
- source: undefined,
- actions: []
- }, undefined, context !== null && context !== void 0 ? context : this.machine.context, undefined);
- };
- Object.defineProperty(StateNode.prototype, "initialState", {
- /**
- * The initial State instance, which includes all actions to be executed from
- * entering the initial state.
- */
- get: function () {
- var initialStateValue = this.initialStateValue;
- if (!initialStateValue) {
- throw new Error("Cannot retrieve initial state from simple state '".concat(this.id, "'."));
- }
- return this.getInitialState(initialStateValue);
- },
- enumerable: false,
- configurable: true
- });
- Object.defineProperty(StateNode.prototype, "target", {
- /**
- * The target state value of the history state node, if it exists. This represents the
- * default state value to transition to if no history value exists yet.
- */
- get: function () {
- var target;
- if (this.type === 'history') {
- var historyConfig = this.config;
- if (isString(historyConfig.target)) {
- target = isStateId(historyConfig.target) ? pathToStateValue(this.machine.getStateNodeById(historyConfig.target).path.slice(this.path.length - 1)) : historyConfig.target;
- } else {
- target = historyConfig.target;
- }
- }
- return target;
- },
- enumerable: false,
- configurable: true
- });
- /**
- * Returns the leaf nodes from a state path relative to this state node.
- *
- * @param relativeStateId The relative state path to retrieve the state nodes
- * @param history The previous state to retrieve history
- * @param resolve Whether state nodes should resolve to initial child state nodes
- */
- StateNode.prototype.getRelativeStateNodes = function (relativeStateId, historyValue, resolve) {
- if (resolve === void 0) {
- resolve = true;
- }
- return resolve ? relativeStateId.type === 'history' ? relativeStateId.resolveHistory(historyValue) : relativeStateId.initialStateNodes : [relativeStateId];
- };
- Object.defineProperty(StateNode.prototype, "initialStateNodes", {
- get: function () {
- var _this = this;
- if (isLeafNode(this)) {
- return [this];
- } // Case when state node is compound but no initial state is defined
- if (this.type === 'compound' && !this.initial) {
- if (!IS_PRODUCTION) {
- warn(false, "Compound state node '".concat(this.id, "' has no initial state."));
- }
- return [this];
- }
- var initialStateNodePaths = toStatePaths(this.initialStateValue);
- return flatten(initialStateNodePaths.map(function (initialPath) {
- return _this.getFromRelativePath(initialPath);
- }));
- },
- enumerable: false,
- configurable: true
- });
- /**
- * Retrieves state nodes from a relative path to this state node.
- *
- * @param relativePath The relative path from this state node
- * @param historyValue
- */
- StateNode.prototype.getFromRelativePath = function (relativePath) {
- if (!relativePath.length) {
- return [this];
- }
- var _a = __read(relativePath),
- stateKey = _a[0],
- childStatePath = _a.slice(1);
- if (!this.states) {
- throw new Error("Cannot retrieve subPath '".concat(stateKey, "' from node with no states"));
- }
- var childStateNode = this.getStateNode(stateKey);
- if (childStateNode.type === 'history') {
- return childStateNode.resolveHistory();
- }
- if (!this.states[stateKey]) {
- throw new Error("Child state '".concat(stateKey, "' does not exist on '").concat(this.id, "'"));
- }
- return this.states[stateKey].getFromRelativePath(childStatePath);
- };
- StateNode.prototype.historyValue = function (relativeStateValue) {
- if (!Object.keys(this.states).length) {
- return undefined;
- }
- return {
- current: relativeStateValue || this.initialStateValue,
- states: mapFilterValues(this.states, function (stateNode, key) {
- if (!relativeStateValue) {
- return stateNode.historyValue();
- }
- var subStateValue = isString(relativeStateValue) ? undefined : relativeStateValue[key];
- return stateNode.historyValue(subStateValue || stateNode.initialStateValue);
- }, function (stateNode) {
- return !stateNode.history;
- })
- };
- };
- /**
- * Resolves to the historical value(s) of the parent state node,
- * represented by state nodes.
- *
- * @param historyValue
- */
- StateNode.prototype.resolveHistory = function (historyValue) {
- var _this = this;
- if (this.type !== 'history') {
- return [this];
- }
- var parent = this.parent;
- if (!historyValue) {
- var historyTarget = this.target;
- return historyTarget ? flatten(toStatePaths(historyTarget).map(function (relativeChildPath) {
- return parent.getFromRelativePath(relativeChildPath);
- })) : parent.initialStateNodes;
- }
- var subHistoryValue = nestedPath(parent.path, 'states')(historyValue).current;
- if (isString(subHistoryValue)) {
- return [parent.getStateNode(subHistoryValue)];
- }
- return flatten(toStatePaths(subHistoryValue).map(function (subStatePath) {
- return _this.history === 'deep' ? parent.getFromRelativePath(subStatePath) : [parent.states[subStatePath[0]]];
- }));
- };
- Object.defineProperty(StateNode.prototype, "stateIds", {
- /**
- * All the state node IDs of this state node and its descendant state nodes.
- */
- get: function () {
- var _this = this;
- var childStateIds = flatten(Object.keys(this.states).map(function (stateKey) {
- return _this.states[stateKey].stateIds;
- }));
- return [this.id].concat(childStateIds);
- },
- enumerable: false,
- configurable: true
- });
- Object.defineProperty(StateNode.prototype, "events", {
- /**
- * All the event types accepted by this state node and its descendants.
- */
- get: function () {
- var e_8, _a, e_9, _b;
- if (this.__cache.events) {
- return this.__cache.events;
- }
- var states = this.states;
- var events = new Set(this.ownEvents);
- if (states) {
- try {
- for (var _c = __values(Object.keys(states)), _d = _c.next(); !_d.done; _d = _c.next()) {
- var stateId = _d.value;
- var state = states[stateId];
- if (state.states) {
- try {
- for (var _e = (e_9 = void 0, __values(state.events)), _f = _e.next(); !_f.done; _f = _e.next()) {
- var event_1 = _f.value;
- events.add("".concat(event_1));
- }
- } catch (e_9_1) {
- e_9 = {
- error: e_9_1
- };
- } finally {
- try {
- if (_f && !_f.done && (_b = _e.return)) _b.call(_e);
- } finally {
- if (e_9) throw e_9.error;
- }
- }
- }
- }
- } catch (e_8_1) {
- e_8 = {
- error: e_8_1
- };
- } finally {
- try {
- if (_d && !_d.done && (_a = _c.return)) _a.call(_c);
- } finally {
- if (e_8) throw e_8.error;
- }
- }
- }
- return this.__cache.events = Array.from(events);
- },
- enumerable: false,
- configurable: true
- });
- Object.defineProperty(StateNode.prototype, "ownEvents", {
- /**
- * All the events that have transitions directly from this state node.
- *
- * Excludes any inert events.
- */
- get: function () {
- var events = new Set(this.transitions.filter(function (transition) {
- return !(!transition.target && !transition.actions.length && transition.internal);
- }).map(function (transition) {
- return transition.eventType;
- }));
- return Array.from(events);
- },
- enumerable: false,
- configurable: true
- });
- StateNode.prototype.resolveTarget = function (_target) {
- var _this = this;
- if (_target === undefined) {
- // an undefined target signals that the state node should not transition from that state when receiving that event
- return undefined;
- }
- return _target.map(function (target) {
- if (!isString(target)) {
- return target;
- }
- var isInternalTarget = target[0] === _this.delimiter; // If internal target is defined on machine,
- // do not include machine key on target
- if (isInternalTarget && !_this.parent) {
- return _this.getStateNodeByPath(target.slice(1));
- }
- var resolvedTarget = isInternalTarget ? _this.key + target : target;
- if (_this.parent) {
- try {
- var targetStateNode = _this.parent.getStateNodeByPath(resolvedTarget);
- return targetStateNode;
- } catch (err) {
- throw new Error("Invalid transition definition for state node '".concat(_this.id, "':\n").concat(err.message));
- }
- } else {
- return _this.getStateNodeByPath(resolvedTarget);
- }
- });
- };
- StateNode.prototype.formatTransition = function (transitionConfig) {
- var _this = this;
- var normalizedTarget = normalizeTarget(transitionConfig.target);
- var internal = 'internal' in transitionConfig ? transitionConfig.internal : normalizedTarget ? normalizedTarget.some(function (_target) {
- return isString(_target) && _target[0] === _this.delimiter;
- }) : true;
- var guards = this.machine.options.guards;
- var target = this.resolveTarget(normalizedTarget);
- var transition = __assign(__assign({}, transitionConfig), {
- actions: toActionObjects(toArray(transitionConfig.actions)),
- cond: toGuard(transitionConfig.cond, guards),
- target: target,
- source: this,
- internal: internal,
- eventType: transitionConfig.event,
- toJSON: function () {
- return __assign(__assign({}, transition), {
- target: transition.target ? transition.target.map(function (t) {
- return "#".concat(t.id);
- }) : undefined,
- source: "#".concat(_this.id)
- });
- }
- });
- return transition;
- };
- StateNode.prototype.formatTransitions = function () {
- var e_10, _a;
- var _this = this;
- var onConfig;
- if (!this.config.on) {
- onConfig = [];
- } else if (Array.isArray(this.config.on)) {
- onConfig = this.config.on;
- } else {
- var _b = this.config.on,
- _c = WILDCARD,
- _d = _b[_c],
- wildcardConfigs = _d === void 0 ? [] : _d,
- strictTransitionConfigs_1 = __rest(_b, [typeof _c === "symbol" ? _c : _c + ""]);
- onConfig = flatten(Object.keys(strictTransitionConfigs_1).map(function (key) {
- if (!IS_PRODUCTION && key === NULL_EVENT) {
- warn(false, "Empty string transition configs (e.g., `{ on: { '': ... }}`) for transient transitions are deprecated. Specify the transition in the `{ always: ... }` property instead. " + "Please check the `on` configuration for \"#".concat(_this.id, "\"."));
- }
- var transitionConfigArray = toTransitionConfigArray(key, strictTransitionConfigs_1[key]);
- if (!IS_PRODUCTION) {
- validateArrayifiedTransitions(_this, key, transitionConfigArray);
- }
- return transitionConfigArray;
- }).concat(toTransitionConfigArray(WILDCARD, wildcardConfigs)));
- }
- var eventlessConfig = this.config.always ? toTransitionConfigArray('', this.config.always) : [];
- var doneConfig = this.config.onDone ? toTransitionConfigArray(String(done(this.id)), this.config.onDone) : [];
- if (!IS_PRODUCTION) {
- warn(!(this.config.onDone && !this.parent), "Root nodes cannot have an \".onDone\" transition. Please check the config of \"".concat(this.id, "\"."));
- }
- var invokeConfig = flatten(this.invoke.map(function (invokeDef) {
- var settleTransitions = [];
- if (invokeDef.onDone) {
- settleTransitions.push.apply(settleTransitions, __spreadArray([], __read(toTransitionConfigArray(String(doneInvoke(invokeDef.id)), invokeDef.onDone)), false));
- }
- if (invokeDef.onError) {
- settleTransitions.push.apply(settleTransitions, __spreadArray([], __read(toTransitionConfigArray(String(error(invokeDef.id)), invokeDef.onError)), false));
- }
- return settleTransitions;
- }));
- var delayedTransitions = this.after;
- var formattedTransitions = flatten(__spreadArray(__spreadArray(__spreadArray(__spreadArray([], __read(doneConfig), false), __read(invokeConfig), false), __read(onConfig), false), __read(eventlessConfig), false).map(function (transitionConfig) {
- return toArray(transitionConfig).map(function (transition) {
- return _this.formatTransition(transition);
- });
- }));
- try {
- for (var delayedTransitions_1 = __values(delayedTransitions), delayedTransitions_1_1 = delayedTransitions_1.next(); !delayedTransitions_1_1.done; delayedTransitions_1_1 = delayedTransitions_1.next()) {
- var delayedTransition = delayedTransitions_1_1.value;
- formattedTransitions.push(delayedTransition);
- }
- } catch (e_10_1) {
- e_10 = {
- error: e_10_1
- };
- } finally {
- try {
- if (delayedTransitions_1_1 && !delayedTransitions_1_1.done && (_a = delayedTransitions_1.return)) _a.call(delayedTransitions_1);
- } finally {
- if (e_10) throw e_10.error;
- }
- }
- return formattedTransitions;
- };
- return StateNode;
- }();
- export { StateNode };
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