WIP - add extractor, generate snippet_data
This commit is contained in:
Stefan Fejes
196
node_modules/xstate/lib/scxml.js
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vendored
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196
node_modules/xstate/lib/scxml.js
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vendored
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"use strict";
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var __assign = (this && this.__assign) || function () {
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__assign = Object.assign || function(t) {
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for (var s, i = 1, n = arguments.length; i < n; i++) {
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s = arguments[i];
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for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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t[p] = s[p];
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}
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return t;
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};
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return __assign.apply(this, arguments);
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};
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var __read = (this && this.__read) || function (o, n) {
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var m = typeof Symbol === "function" && o[Symbol.iterator];
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if (!m) return o;
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var i = m.call(o), r, ar = [], e;
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try {
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while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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}
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catch (error) { e = { error: error }; }
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finally {
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try {
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if (r && !r.done && (m = i["return"])) m.call(i);
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}
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finally { if (e) throw e.error; }
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}
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return ar;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var xml_js_1 = require("xml-js");
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var index_1 = require("./index");
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var utils_1 = require("./utils");
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var actions = require("./actions");
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function getAttribute(element, attribute) {
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return element.attributes ? element.attributes[attribute] : undefined;
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}
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function indexedRecord(items, identifier) {
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var record = {};
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var identifierFn = utils_1.isString(identifier)
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? function (item) { return item[identifier]; }
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: identifier;
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items.forEach(function (item) {
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var key = identifierFn(item);
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record[key] = item;
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});
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return record;
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}
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function indexedAggregateRecord(items, identifier) {
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var record = {};
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var identifierFn = utils_1.isString(identifier)
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? function (item) { return item[identifier]; }
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: identifier;
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items.forEach(function (item) {
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var key = identifierFn(item);
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(record[key] = record[key] || []).push(item);
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});
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return record;
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}
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function executableContent(elements) {
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var transition = {
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actions: mapActions(elements)
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};
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return transition;
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}
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function getTargets(targetAttr) {
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// return targetAttr ? [`#${targetAttr}`] : undefined;
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return targetAttr
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? ("" + targetAttr).split(/\s+/).map(function (target) { return "#" + target; })
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: undefined;
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}
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function mapActions(elements) {
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return elements.map(function (element) {
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switch (element.name) {
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case 'raise':
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return actions.raise(element.attributes
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.event);
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case 'assign':
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return actions.assign(function (xs) {
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var literalKeyExprs = xs
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? utils_1.keys(xs)
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.map(function (key) { return "const " + key + " = xs['" + key + "'];"; })
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.join('\n')
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: '';
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var fnStr = "\n const xs = arguments[0];\n " + literalKeyExprs + ";\n return {'" + element.attributes.location + "': " + element.attributes.expr + "};\n ";
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var fn = new Function(fnStr);
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return fn(xs);
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});
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case 'send':
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var delay_1 = element.attributes.delay;
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var numberDelay = delay_1
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? typeof delay_1 === 'number'
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? delay_1
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: /(\d+)ms/.test(delay_1)
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? +/(\d+)ms/.exec(delay_1)[1]
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: 0
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: 0;
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return actions.send(element.attributes.event, {
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delay: numberDelay
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});
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default:
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return { type: 'not-implemented' };
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}
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});
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}
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function toConfig(nodeJson, id, options, extState) {
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var evalCond = options.evalCond;
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var parallel = nodeJson.name === 'parallel';
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var initial = parallel ? undefined : nodeJson.attributes.initial;
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var states;
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var on;
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var elements = nodeJson.elements;
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switch (nodeJson.name) {
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case 'history': {
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if (!elements) {
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return {
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id: id,
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history: nodeJson.attributes.type || 'shallow'
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};
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}
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var _a = __read(elements.filter(function (element) { return element.name === 'transition'; }), 1), transitionElement = _a[0];
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var target = getAttribute(transitionElement, 'target');
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var history_1 = getAttribute(nodeJson, 'type') || 'shallow';
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return {
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id: id,
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history: history_1,
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target: target ? "#" + target : undefined
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};
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}
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case 'final': {
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return __assign({}, nodeJson.attributes, { type: 'final' });
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}
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default:
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break;
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}
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if (nodeJson.elements) {
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var stateElements = nodeJson.elements.filter(function (element) {
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return element.name === 'state' ||
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element.name === 'parallel' ||
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element.name === 'final' ||
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element.name === 'history';
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});
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var transitionElements = nodeJson.elements.filter(function (element) { return element.name === 'transition'; });
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var onEntryElement = nodeJson.elements.find(function (element) { return element.name === 'onentry'; });
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var onExitElement = nodeJson.elements.find(function (element) { return element.name === 'onexit'; });
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states = indexedRecord(stateElements, function (item) { return "" + item.attributes.id; });
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var initialElement = !initial
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? nodeJson.elements.find(function (element) { return element.name === 'initial'; })
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: undefined;
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if (initialElement && initialElement.elements.length) {
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initial = initialElement.elements.find(function (element) { return element.name === 'transition'; }).attributes.target;
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}
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else if (!initialElement && stateElements.length) {
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initial = stateElements[0].attributes.id;
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}
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on = utils_1.mapValues(indexedAggregateRecord(transitionElements, function (item) { return (item.attributes ? item.attributes.event || '' : ''); }), function (values) {
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return values.map(function (value) {
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var targets = getAttribute(value, 'target');
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return __assign({ target: getTargets(targets) }, (value.elements ? executableContent(value.elements) : undefined), (value.attributes && value.attributes.cond
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? {
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cond: evalCond(value.attributes.cond, extState)
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}
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: undefined));
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});
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});
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var onEntry = onEntryElement
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? mapActions(onEntryElement.elements)
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: undefined;
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var onExit = onExitElement
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? mapActions(onExitElement.elements)
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: undefined;
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return __assign({ id: id }, (initial ? { initial: initial } : undefined), (parallel ? { type: 'parallel' } : undefined), (stateElements.length
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? {
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states: utils_1.mapValues(states, function (state, key) {
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return toConfig(state, key, options, extState);
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})
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}
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: undefined), (transitionElements.length ? { on: on } : undefined), (onEntry ? { onEntry: onEntry } : undefined), (onExit ? { onExit: onExit } : undefined));
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}
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return { id: id };
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}
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function toMachine(xml, options) {
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var json = xml_js_1.xml2js(xml);
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var machineElement = json.elements.filter(function (element) { return element.name === 'scxml'; })[0];
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var dataModelEl = machineElement.elements.filter(function (element) { return element.name === 'datamodel'; })[0];
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var extState = dataModelEl
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? dataModelEl.elements.reduce(function (acc, element) {
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acc[element.attributes.id] = element.attributes.expr
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? JSON.parse(element.attributes.expr)
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: undefined;
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return acc;
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}, {})
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: undefined;
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return index_1.Machine(__assign({}, toConfig(machineElement, '(machine)', options, extState), { delimiter: options.delimiter }), undefined, extState);
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}
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exports.toMachine = toMachine;
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//# sourceMappingURL=scxml.js.map
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