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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = void 0;
+
+var _template = require("@babel/template");
+
+var _helpersGenerated = require("./helpers-generated");
+
+const helpers = Object.assign({
+ __proto__: null
+}, _helpersGenerated.default);
+var _default = helpers;
+exports.default = _default;
+
+const helper = minVersion => tpl => ({
+ minVersion,
+ ast: () => _template.default.program.ast(tpl)
+});
+
+helpers.AwaitValue = helper("7.0.0-beta.0")`
+ export default function _AwaitValue(value) {
+ this.wrapped = value;
+ }
+`;
+helpers.AsyncGenerator = helper("7.0.0-beta.0")`
+ import AwaitValue from "AwaitValue";
+
+ export default function AsyncGenerator(gen) {
+ var front, back;
+
+ function send(key, arg) {
+ return new Promise(function (resolve, reject) {
+ var request = {
+ key: key,
+ arg: arg,
+ resolve: resolve,
+ reject: reject,
+ next: null,
+ };
+
+ if (back) {
+ back = back.next = request;
+ } else {
+ front = back = request;
+ resume(key, arg);
+ }
+ });
+ }
+
+ function resume(key, arg) {
+ try {
+ var result = gen[key](arg)
+ var value = result.value;
+ var wrappedAwait = value instanceof AwaitValue;
+
+ Promise.resolve(wrappedAwait ? value.wrapped : value).then(
+ function (arg) {
+ if (wrappedAwait) {
+ resume(key === "return" ? "return" : "next", arg);
+ return
+ }
+
+ settle(result.done ? "return" : "normal", arg);
+ },
+ function (err) { resume("throw", err); });
+ } catch (err) {
+ settle("throw", err);
+ }
+ }
+
+ function settle(type, value) {
+ switch (type) {
+ case "return":
+ front.resolve({ value: value, done: true });
+ break;
+ case "throw":
+ front.reject(value);
+ break;
+ default:
+ front.resolve({ value: value, done: false });
+ break;
+ }
+
+ front = front.next;
+ if (front) {
+ resume(front.key, front.arg);
+ } else {
+ back = null;
+ }
+ }
+
+ this._invoke = send;
+
+ // Hide "return" method if generator return is not supported
+ if (typeof gen.return !== "function") {
+ this.return = undefined;
+ }
+ }
+
+ AsyncGenerator.prototype[typeof Symbol === "function" && Symbol.asyncIterator || "@@asyncIterator"] = function () { return this; };
+
+ AsyncGenerator.prototype.next = function (arg) { return this._invoke("next", arg); };
+ AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw", arg); };
+ AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); };
+`;
+helpers.wrapAsyncGenerator = helper("7.0.0-beta.0")`
+ import AsyncGenerator from "AsyncGenerator";
+
+ export default function _wrapAsyncGenerator(fn) {
+ return function () {
+ return new AsyncGenerator(fn.apply(this, arguments));
+ };
+ }
+`;
+helpers.awaitAsyncGenerator = helper("7.0.0-beta.0")`
+ import AwaitValue from "AwaitValue";
+
+ export default function _awaitAsyncGenerator(value) {
+ return new AwaitValue(value);
+ }
+`;
+helpers.asyncGeneratorDelegate = helper("7.0.0-beta.0")`
+ export default function _asyncGeneratorDelegate(inner, awaitWrap) {
+ var iter = {}, waiting = false;
+
+ function pump(key, value) {
+ waiting = true;
+ value = new Promise(function (resolve) { resolve(inner[key](value)); });
+ return { done: false, value: awaitWrap(value) };
+ };
+
+ iter[typeof Symbol !== "undefined" && Symbol.iterator || "@@iterator"] = function () { return this; };
+
+ iter.next = function (value) {
+ if (waiting) {
+ waiting = false;
+ return value;
+ }
+ return pump("next", value);
+ };
+
+ if (typeof inner.throw === "function") {
+ iter.throw = function (value) {
+ if (waiting) {
+ waiting = false;
+ throw value;
+ }
+ return pump("throw", value);
+ };
+ }
+
+ if (typeof inner.return === "function") {
+ iter.return = function (value) {
+ if (waiting) {
+ waiting = false;
+ return value;
+ }
+ return pump("return", value);
+ };
+ }
+
+ return iter;
+ }
+`;
+helpers.asyncToGenerator = helper("7.0.0-beta.0")`
+ function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
+ try {
+ var info = gen[key](arg);
+ var value = info.value;
+ } catch (error) {
+ reject(error);
+ return;
+ }
+
+ if (info.done) {
+ resolve(value);
+ } else {
+ Promise.resolve(value).then(_next, _throw);
+ }
+ }
+
+ export default function _asyncToGenerator(fn) {
+ return function () {
+ var self = this, args = arguments;
+ return new Promise(function (resolve, reject) {
+ var gen = fn.apply(self, args);
+ function _next(value) {
+ asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
+ }
+ function _throw(err) {
+ asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
+ }
+
+ _next(undefined);
+ });
+ };
+ }
+`;
+helpers.classCallCheck = helper("7.0.0-beta.0")`
+ export default function _classCallCheck(instance, Constructor) {
+ if (!(instance instanceof Constructor)) {
+ throw new TypeError("Cannot call a class as a function");
+ }
+ }
+`;
+helpers.createClass = helper("7.0.0-beta.0")`
+ function _defineProperties(target, props) {
+ for (var i = 0; i < props.length; i ++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ export default function _createClass(Constructor, protoProps, staticProps) {
+ if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) _defineProperties(Constructor, staticProps);
+ Object.defineProperty(Constructor, "prototype", { writable: false });
+ return Constructor;
+ }
+`;
+helpers.defineEnumerableProperties = helper("7.0.0-beta.0")`
+ export default function _defineEnumerableProperties(obj, descs) {
+ for (var key in descs) {
+ var desc = descs[key];
+ desc.configurable = desc.enumerable = true;
+ if ("value" in desc) desc.writable = true;
+ Object.defineProperty(obj, key, desc);
+ }
+
+ // Symbols are not enumerated over by for-in loops. If native
+ // Symbols are available, fetch all of the descs object's own
+ // symbol properties and define them on our target object too.
+ if (Object.getOwnPropertySymbols) {
+ var objectSymbols = Object.getOwnPropertySymbols(descs);
+ for (var i = 0; i < objectSymbols.length; i++) {
+ var sym = objectSymbols[i];
+ var desc = descs[sym];
+ desc.configurable = desc.enumerable = true;
+ if ("value" in desc) desc.writable = true;
+ Object.defineProperty(obj, sym, desc);
+ }
+ }
+ return obj;
+ }
+`;
+helpers.defaults = helper("7.0.0-beta.0")`
+ export default function _defaults(obj, defaults) {
+ var keys = Object.getOwnPropertyNames(defaults);
+ for (var i = 0; i < keys.length; i++) {
+ var key = keys[i];
+ var value = Object.getOwnPropertyDescriptor(defaults, key);
+ if (value && value.configurable && obj[key] === undefined) {
+ Object.defineProperty(obj, key, value);
+ }
+ }
+ return obj;
+ }
+`;
+helpers.defineProperty = helper("7.0.0-beta.0")`
+ export default function _defineProperty(obj, key, value) {
+ // Shortcircuit the slow defineProperty path when possible.
+ // We are trying to avoid issues where setters defined on the
+ // prototype cause side effects under the fast path of simple
+ // assignment. By checking for existence of the property with
+ // the in operator, we can optimize most of this overhead away.
+ if (key in obj) {
+ Object.defineProperty(obj, key, {
+ value: value,
+ enumerable: true,
+ configurable: true,
+ writable: true
+ });
+ } else {
+ obj[key] = value;
+ }
+ return obj;
+ }
+`;
+helpers.extends = helper("7.0.0-beta.0")`
+ export default function _extends() {
+ _extends = Object.assign || function (target) {
+ for (var i = 1; i < arguments.length; i++) {
+ var source = arguments[i];
+ for (var key in source) {
+ if (Object.prototype.hasOwnProperty.call(source, key)) {
+ target[key] = source[key];
+ }
+ }
+ }
+ return target;
+ };
+
+ return _extends.apply(this, arguments);
+ }
+`;
+helpers.objectSpread = helper("7.0.0-beta.0")`
+ import defineProperty from "defineProperty";
+
+ export default function _objectSpread(target) {
+ for (var i = 1; i < arguments.length; i++) {
+ var source = (arguments[i] != null) ? Object(arguments[i]) : {};
+ var ownKeys = Object.keys(source);
+ if (typeof Object.getOwnPropertySymbols === 'function') {
+ ownKeys.push.apply(ownKeys, Object.getOwnPropertySymbols(source).filter(function(sym) {
+ return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+ }));
+ }
+ ownKeys.forEach(function(key) {
+ defineProperty(target, key, source[key]);
+ });
+ }
+ return target;
+ }
+`;
+helpers.inherits = helper("7.0.0-beta.0")`
+ import setPrototypeOf from "setPrototypeOf";
+
+ export default function _inherits(subClass, superClass) {
+ if (typeof superClass !== "function" && superClass !== null) {
+ throw new TypeError("Super expression must either be null or a function");
+ }
+ // We can't use defineProperty to set the prototype in a single step because it
+ // doesn't work in Chrome <= 36. https://github.com/babel/babel/issues/14056
+ // V8 bug: https://bugs.chromium.org/p/v8/issues/detail?id=3334
+ subClass.prototype = Object.create(superClass && superClass.prototype, {
+ constructor: {
+ value: subClass,
+ writable: true,
+ configurable: true
+ }
+ });
+ Object.defineProperty(subClass, "prototype", { writable: false });
+ if (superClass) setPrototypeOf(subClass, superClass);
+ }
+`;
+helpers.inheritsLoose = helper("7.0.0-beta.0")`
+ import setPrototypeOf from "setPrototypeOf";
+
+ export default function _inheritsLoose(subClass, superClass) {
+ subClass.prototype = Object.create(superClass.prototype);
+ subClass.prototype.constructor = subClass;
+ setPrototypeOf(subClass, superClass);
+ }
+`;
+helpers.getPrototypeOf = helper("7.0.0-beta.0")`
+ export default function _getPrototypeOf(o) {
+ _getPrototypeOf = Object.setPrototypeOf
+ ? Object.getPrototypeOf
+ : function _getPrototypeOf(o) {
+ return o.__proto__ || Object.getPrototypeOf(o);
+ };
+ return _getPrototypeOf(o);
+ }
+`;
+helpers.setPrototypeOf = helper("7.0.0-beta.0")`
+ export default function _setPrototypeOf(o, p) {
+ _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
+ o.__proto__ = p;
+ return o;
+ };
+ return _setPrototypeOf(o, p);
+ }
+`;
+helpers.isNativeReflectConstruct = helper("7.9.0")`
+ export default function _isNativeReflectConstruct() {
+ if (typeof Reflect === "undefined" || !Reflect.construct) return false;
+
+ // core-js@3
+ if (Reflect.construct.sham) return false;
+
+ // Proxy can't be polyfilled. Every browser implemented
+ // proxies before or at the same time as Reflect.construct,
+ // so if they support Proxy they also support Reflect.construct.
+ if (typeof Proxy === "function") return true;
+
+ // Since Reflect.construct can't be properly polyfilled, some
+ // implementations (e.g. core-js@2) don't set the correct internal slots.
+ // Those polyfills don't allow us to subclass built-ins, so we need to
+ // use our fallback implementation.
+ try {
+ // If the internal slots aren't set, this throws an error similar to
+ // TypeError: this is not a Boolean object.
+
+ Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function() {}));
+ return true;
+ } catch (e) {
+ return false;
+ }
+ }
+`;
+helpers.construct = helper("7.0.0-beta.0")`
+ import setPrototypeOf from "setPrototypeOf";
+ import isNativeReflectConstruct from "isNativeReflectConstruct";
+
+ export default function _construct(Parent, args, Class) {
+ if (isNativeReflectConstruct()) {
+ _construct = Reflect.construct;
+ } else {
+ // NOTE: If Parent !== Class, the correct __proto__ is set *after*
+ // calling the constructor.
+ _construct = function _construct(Parent, args, Class) {
+ var a = [null];
+ a.push.apply(a, args);
+ var Constructor = Function.bind.apply(Parent, a);
+ var instance = new Constructor();
+ if (Class) setPrototypeOf(instance, Class.prototype);
+ return instance;
+ };
+ }
+ // Avoid issues with Class being present but undefined when it wasn't
+ // present in the original call.
+ return _construct.apply(null, arguments);
+ }
+`;
+helpers.isNativeFunction = helper("7.0.0-beta.0")`
+ export default function _isNativeFunction(fn) {
+ // Note: This function returns "true" for core-js functions.
+ return Function.toString.call(fn).indexOf("[native code]") !== -1;
+ }
+`;
+helpers.wrapNativeSuper = helper("7.0.0-beta.0")`
+ import getPrototypeOf from "getPrototypeOf";
+ import setPrototypeOf from "setPrototypeOf";
+ import isNativeFunction from "isNativeFunction";
+ import construct from "construct";
+
+ export default function _wrapNativeSuper(Class) {
+ var _cache = typeof Map === "function" ? new Map() : undefined;
+
+ _wrapNativeSuper = function _wrapNativeSuper(Class) {
+ if (Class === null || !isNativeFunction(Class)) return Class;
+ if (typeof Class !== "function") {
+ throw new TypeError("Super expression must either be null or a function");
+ }
+ if (typeof _cache !== "undefined") {
+ if (_cache.has(Class)) return _cache.get(Class);
+ _cache.set(Class, Wrapper);
+ }
+ function Wrapper() {
+ return construct(Class, arguments, getPrototypeOf(this).constructor)
+ }
+ Wrapper.prototype = Object.create(Class.prototype, {
+ constructor: {
+ value: Wrapper,
+ enumerable: false,
+ writable: true,
+ configurable: true,
+ }
+ });
+
+ return setPrototypeOf(Wrapper, Class);
+ }
+
+ return _wrapNativeSuper(Class)
+ }
+`;
+helpers.instanceof = helper("7.0.0-beta.0")`
+ export default function _instanceof(left, right) {
+ if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) {
+ return !!right[Symbol.hasInstance](left);
+ } else {
+ return left instanceof right;
+ }
+ }
+`;
+helpers.interopRequireDefault = helper("7.0.0-beta.0")`
+ export default function _interopRequireDefault(obj) {
+ return obj && obj.__esModule ? obj : { default: obj };
+ }
+`;
+helpers.interopRequireWildcard = helper("7.14.0")`
+ function _getRequireWildcardCache(nodeInterop) {
+ if (typeof WeakMap !== "function") return null;
+
+ var cacheBabelInterop = new WeakMap();
+ var cacheNodeInterop = new WeakMap();
+ return (_getRequireWildcardCache = function (nodeInterop) {
+ return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
+ })(nodeInterop);
+ }
+
+ export default function _interopRequireWildcard(obj, nodeInterop) {
+ if (!nodeInterop && obj && obj.__esModule) {
+ return obj;
+ }
+
+ if (obj === null || (typeof obj !== "object" && typeof obj !== "function")) {
+ return { default: obj }
+ }
+
+ var cache = _getRequireWildcardCache(nodeInterop);
+ if (cache && cache.has(obj)) {
+ return cache.get(obj);
+ }
+
+ var newObj = {};
+ var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
+ for (var key in obj) {
+ if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) {
+ var desc = hasPropertyDescriptor
+ ? Object.getOwnPropertyDescriptor(obj, key)
+ : null;
+ if (desc && (desc.get || desc.set)) {
+ Object.defineProperty(newObj, key, desc);
+ } else {
+ newObj[key] = obj[key];
+ }
+ }
+ }
+ newObj.default = obj;
+ if (cache) {
+ cache.set(obj, newObj);
+ }
+ return newObj;
+ }
+`;
+helpers.newArrowCheck = helper("7.0.0-beta.0")`
+ export default function _newArrowCheck(innerThis, boundThis) {
+ if (innerThis !== boundThis) {
+ throw new TypeError("Cannot instantiate an arrow function");
+ }
+ }
+`;
+helpers.objectDestructuringEmpty = helper("7.0.0-beta.0")`
+ export default function _objectDestructuringEmpty(obj) {
+ if (obj == null) throw new TypeError("Cannot destructure undefined");
+ }
+`;
+helpers.objectWithoutPropertiesLoose = helper("7.0.0-beta.0")`
+ export default function _objectWithoutPropertiesLoose(source, excluded) {
+ if (source == null) return {};
+
+ var target = {};
+ var sourceKeys = Object.keys(source);
+ var key, i;
+
+ for (i = 0; i < sourceKeys.length; i++) {
+ key = sourceKeys[i];
+ if (excluded.indexOf(key) >= 0) continue;
+ target[key] = source[key];
+ }
+
+ return target;
+ }
+`;
+helpers.objectWithoutProperties = helper("7.0.0-beta.0")`
+ import objectWithoutPropertiesLoose from "objectWithoutPropertiesLoose";
+
+ export default function _objectWithoutProperties(source, excluded) {
+ if (source == null) return {};
+
+ var target = objectWithoutPropertiesLoose(source, excluded);
+ var key, i;
+
+ if (Object.getOwnPropertySymbols) {
+ var sourceSymbolKeys = Object.getOwnPropertySymbols(source);
+ for (i = 0; i < sourceSymbolKeys.length; i++) {
+ key = sourceSymbolKeys[i];
+ if (excluded.indexOf(key) >= 0) continue;
+ if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
+ target[key] = source[key];
+ }
+ }
+
+ return target;
+ }
+`;
+helpers.assertThisInitialized = helper("7.0.0-beta.0")`
+ export default function _assertThisInitialized(self) {
+ if (self === void 0) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+ return self;
+ }
+`;
+helpers.possibleConstructorReturn = helper("7.0.0-beta.0")`
+ import assertThisInitialized from "assertThisInitialized";
+
+ export default function _possibleConstructorReturn(self, call) {
+ if (call && (typeof call === "object" || typeof call === "function")) {
+ return call;
+ } else if (call !== void 0) {
+ throw new TypeError("Derived constructors may only return object or undefined");
+ }
+
+ return assertThisInitialized(self);
+ }
+`;
+helpers.createSuper = helper("7.9.0")`
+ import getPrototypeOf from "getPrototypeOf";
+ import isNativeReflectConstruct from "isNativeReflectConstruct";
+ import possibleConstructorReturn from "possibleConstructorReturn";
+
+ export default function _createSuper(Derived) {
+ var hasNativeReflectConstruct = isNativeReflectConstruct();
+
+ return function _createSuperInternal() {
+ var Super = getPrototypeOf(Derived), result;
+ if (hasNativeReflectConstruct) {
+ // NOTE: This doesn't work if this.__proto__.constructor has been modified.
+ var NewTarget = getPrototypeOf(this).constructor;
+ result = Reflect.construct(Super, arguments, NewTarget);
+ } else {
+ result = Super.apply(this, arguments);
+ }
+ return possibleConstructorReturn(this, result);
+ }
+ }
+ `;
+helpers.superPropBase = helper("7.0.0-beta.0")`
+ import getPrototypeOf from "getPrototypeOf";
+
+ export default function _superPropBase(object, property) {
+ // Yes, this throws if object is null to being with, that's on purpose.
+ while (!Object.prototype.hasOwnProperty.call(object, property)) {
+ object = getPrototypeOf(object);
+ if (object === null) break;
+ }
+ return object;
+ }
+`;
+helpers.get = helper("7.0.0-beta.0")`
+ import superPropBase from "superPropBase";
+
+ export default function _get() {
+ if (typeof Reflect !== "undefined" && Reflect.get) {
+ _get = Reflect.get;
+ } else {
+ _get = function _get(target, property, receiver) {
+ var base = superPropBase(target, property);
+
+ if (!base) return;
+
+ var desc = Object.getOwnPropertyDescriptor(base, property);
+ if (desc.get) {
+ // STEP 3. If receiver is not present, then set receiver to target.
+ return desc.get.call(arguments.length < 3 ? target : receiver);
+ }
+
+ return desc.value;
+ };
+ }
+ return _get.apply(this, arguments);
+ }
+`;
+helpers.set = helper("7.0.0-beta.0")`
+ import superPropBase from "superPropBase";
+ import defineProperty from "defineProperty";
+
+ function set(target, property, value, receiver) {
+ if (typeof Reflect !== "undefined" && Reflect.set) {
+ set = Reflect.set;
+ } else {
+ set = function set(target, property, value, receiver) {
+ var base = superPropBase(target, property);
+ var desc;
+
+ if (base) {
+ desc = Object.getOwnPropertyDescriptor(base, property);
+ if (desc.set) {
+ desc.set.call(receiver, value);
+ return true;
+ } else if (!desc.writable) {
+ // Both getter and non-writable fall into this.
+ return false;
+ }
+ }
+
+ // Without a super that defines the property, spec boils down to
+ // "define on receiver" for some reason.
+ desc = Object.getOwnPropertyDescriptor(receiver, property);
+ if (desc) {
+ if (!desc.writable) {
+ // Setter, getter, and non-writable fall into this.
+ return false;
+ }
+
+ desc.value = value;
+ Object.defineProperty(receiver, property, desc);
+ } else {
+ // Avoid setters that may be defined on Sub's prototype, but not on
+ // the instance.
+ defineProperty(receiver, property, value);
+ }
+
+ return true;
+ };
+ }
+
+ return set(target, property, value, receiver);
+ }
+
+ export default function _set(target, property, value, receiver, isStrict) {
+ var s = set(target, property, value, receiver || target);
+ if (!s && isStrict) {
+ throw new Error('failed to set property');
+ }
+
+ return value;
+ }
+`;
+helpers.taggedTemplateLiteral = helper("7.0.0-beta.0")`
+ export default function _taggedTemplateLiteral(strings, raw) {
+ if (!raw) { raw = strings.slice(0); }
+ return Object.freeze(Object.defineProperties(strings, {
+ raw: { value: Object.freeze(raw) }
+ }));
+ }
+`;
+helpers.taggedTemplateLiteralLoose = helper("7.0.0-beta.0")`
+ export default function _taggedTemplateLiteralLoose(strings, raw) {
+ if (!raw) { raw = strings.slice(0); }
+ strings.raw = raw;
+ return strings;
+ }
+`;
+helpers.readOnlyError = helper("7.0.0-beta.0")`
+ export default function _readOnlyError(name) {
+ throw new TypeError("\\"" + name + "\\" is read-only");
+ }
+`;
+helpers.writeOnlyError = helper("7.12.13")`
+ export default function _writeOnlyError(name) {
+ throw new TypeError("\\"" + name + "\\" is write-only");
+ }
+`;
+helpers.classNameTDZError = helper("7.0.0-beta.0")`
+ export default function _classNameTDZError(name) {
+ throw new Error("Class \\"" + name + "\\" cannot be referenced in computed property keys.");
+ }
+`;
+helpers.temporalUndefined = helper("7.0.0-beta.0")`
+ // This function isn't mean to be called, but to be used as a reference.
+ // We can't use a normal object because it isn't hoisted.
+ export default function _temporalUndefined() {}
+`;
+helpers.tdz = helper("7.5.5")`
+ export default function _tdzError(name) {
+ throw new ReferenceError(name + " is not defined - temporal dead zone");
+ }
+`;
+helpers.temporalRef = helper("7.0.0-beta.0")`
+ import undef from "temporalUndefined";
+ import err from "tdz";
+
+ export default function _temporalRef(val, name) {
+ return val === undef ? err(name) : val;
+ }
+`;
+helpers.slicedToArray = helper("7.0.0-beta.0")`
+ import arrayWithHoles from "arrayWithHoles";
+ import iterableToArrayLimit from "iterableToArrayLimit";
+ import unsupportedIterableToArray from "unsupportedIterableToArray";
+ import nonIterableRest from "nonIterableRest";
+
+ export default function _slicedToArray(arr, i) {
+ return (
+ arrayWithHoles(arr) ||
+ iterableToArrayLimit(arr, i) ||
+ unsupportedIterableToArray(arr, i) ||
+ nonIterableRest()
+ );
+ }
+`;
+helpers.slicedToArrayLoose = helper("7.0.0-beta.0")`
+ import arrayWithHoles from "arrayWithHoles";
+ import iterableToArrayLimitLoose from "iterableToArrayLimitLoose";
+ import unsupportedIterableToArray from "unsupportedIterableToArray";
+ import nonIterableRest from "nonIterableRest";
+
+ export default function _slicedToArrayLoose(arr, i) {
+ return (
+ arrayWithHoles(arr) ||
+ iterableToArrayLimitLoose(arr, i) ||
+ unsupportedIterableToArray(arr, i) ||
+ nonIterableRest()
+ );
+ }
+`;
+helpers.toArray = helper("7.0.0-beta.0")`
+ import arrayWithHoles from "arrayWithHoles";
+ import iterableToArray from "iterableToArray";
+ import unsupportedIterableToArray from "unsupportedIterableToArray";
+ import nonIterableRest from "nonIterableRest";
+
+ export default function _toArray(arr) {
+ return (
+ arrayWithHoles(arr) ||
+ iterableToArray(arr) ||
+ unsupportedIterableToArray(arr) ||
+ nonIterableRest()
+ );
+ }
+`;
+helpers.toConsumableArray = helper("7.0.0-beta.0")`
+ import arrayWithoutHoles from "arrayWithoutHoles";
+ import iterableToArray from "iterableToArray";
+ import unsupportedIterableToArray from "unsupportedIterableToArray";
+ import nonIterableSpread from "nonIterableSpread";
+
+ export default function _toConsumableArray(arr) {
+ return (
+ arrayWithoutHoles(arr) ||
+ iterableToArray(arr) ||
+ unsupportedIterableToArray(arr) ||
+ nonIterableSpread()
+ );
+ }
+`;
+helpers.arrayWithoutHoles = helper("7.0.0-beta.0")`
+ import arrayLikeToArray from "arrayLikeToArray";
+
+ export default function _arrayWithoutHoles(arr) {
+ if (Array.isArray(arr)) return arrayLikeToArray(arr);
+ }
+`;
+helpers.arrayWithHoles = helper("7.0.0-beta.0")`
+ export default function _arrayWithHoles(arr) {
+ if (Array.isArray(arr)) return arr;
+ }
+`;
+helpers.maybeArrayLike = helper("7.9.0")`
+ import arrayLikeToArray from "arrayLikeToArray";
+
+ export default function _maybeArrayLike(next, arr, i) {
+ if (arr && !Array.isArray(arr) && typeof arr.length === "number") {
+ var len = arr.length;
+ return arrayLikeToArray(arr, i !== void 0 && i < len ? i : len);
+ }
+ return next(arr, i);
+ }
+`;
+helpers.iterableToArray = helper("7.0.0-beta.0")`
+ export default function _iterableToArray(iter) {
+ if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
+ }
+`;
+helpers.iterableToArrayLimit = helper("7.0.0-beta.0")`
+ export default function _iterableToArrayLimit(arr, i) {
+ // this is an expanded form of \`for...of\` that properly supports abrupt completions of
+ // iterators etc. variable names have been minimised to reduce the size of this massive
+ // helper. sometimes spec compliance is annoying :(
+ //
+ // _n = _iteratorNormalCompletion
+ // _d = _didIteratorError
+ // _e = _iteratorError
+ // _i = _iterator
+ // _s = _step
+
+ var _i = arr == null ? null : (typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]);
+ if (_i == null) return;
+
+ var _arr = [];
+ var _n = true;
+ var _d = false;
+ var _s, _e;
+ try {
+ for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) {
+ _arr.push(_s.value);
+ if (i && _arr.length === i) break;
+ }
+ } catch (err) {
+ _d = true;
+ _e = err;
+ } finally {
+ try {
+ if (!_n && _i["return"] != null) _i["return"]();
+ } finally {
+ if (_d) throw _e;
+ }
+ }
+ return _arr;
+ }
+`;
+helpers.iterableToArrayLimitLoose = helper("7.0.0-beta.0")`
+ export default function _iterableToArrayLimitLoose(arr, i) {
+ var _i = arr && (typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]);
+ if (_i == null) return;
+
+ var _arr = [];
+ for (_i = _i.call(arr), _step; !(_step = _i.next()).done;) {
+ _arr.push(_step.value);
+ if (i && _arr.length === i) break;
+ }
+ return _arr;
+ }
+`;
+helpers.unsupportedIterableToArray = helper("7.9.0")`
+ import arrayLikeToArray from "arrayLikeToArray";
+
+ export default function _unsupportedIterableToArray(o, minLen) {
+ if (!o) return;
+ if (typeof o === "string") return arrayLikeToArray(o, minLen);
+ var n = Object.prototype.toString.call(o).slice(8, -1);
+ if (n === "Object" && o.constructor) n = o.constructor.name;
+ if (n === "Map" || n === "Set") return Array.from(o);
+ if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n))
+ return arrayLikeToArray(o, minLen);
+ }
+`;
+helpers.arrayLikeToArray = helper("7.9.0")`
+ export default function _arrayLikeToArray(arr, len) {
+ if (len == null || len > arr.length) len = arr.length;
+ for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
+ return arr2;
+ }
+`;
+helpers.nonIterableSpread = helper("7.0.0-beta.0")`
+ export default function _nonIterableSpread() {
+ throw new TypeError(
+ "Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."
+ );
+ }
+`;
+helpers.nonIterableRest = helper("7.0.0-beta.0")`
+ export default function _nonIterableRest() {
+ throw new TypeError(
+ "Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."
+ );
+ }
+`;
+helpers.createForOfIteratorHelper = helper("7.9.0")`
+ import unsupportedIterableToArray from "unsupportedIterableToArray";
+
+ // s: start (create the iterator)
+ // n: next
+ // e: error (called whenever something throws)
+ // f: finish (always called at the end)
+
+ export default function _createForOfIteratorHelper(o, allowArrayLike) {
+ var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
+
+ if (!it) {
+ // Fallback for engines without symbol support
+ if (
+ Array.isArray(o) ||
+ (it = unsupportedIterableToArray(o)) ||
+ (allowArrayLike && o && typeof o.length === "number")
+ ) {
+ if (it) o = it;
+ var i = 0;
+ var F = function(){};
+ return {
+ s: F,
+ n: function() {
+ if (i >= o.length) return { done: true };
+ return { done: false, value: o[i++] };
+ },
+ e: function(e) { throw e; },
+ f: F,
+ };
+ }
+
+ throw new TypeError("Invalid attempt to iterate non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+ }
+
+ var normalCompletion = true, didErr = false, err;
+
+ return {
+ s: function() {
+ it = it.call(o);
+ },
+ n: function() {
+ var step = it.next();
+ normalCompletion = step.done;
+ return step;
+ },
+ e: function(e) {
+ didErr = true;
+ err = e;
+ },
+ f: function() {
+ try {
+ if (!normalCompletion && it.return != null) it.return();
+ } finally {
+ if (didErr) throw err;
+ }
+ }
+ };
+ }
+`;
+helpers.createForOfIteratorHelperLoose = helper("7.9.0")`
+ import unsupportedIterableToArray from "unsupportedIterableToArray";
+
+ export default function _createForOfIteratorHelperLoose(o, allowArrayLike) {
+ var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
+
+ if (it) return (it = it.call(o)).next.bind(it);
+
+ // Fallback for engines without symbol support
+ if (
+ Array.isArray(o) ||
+ (it = unsupportedIterableToArray(o)) ||
+ (allowArrayLike && o && typeof o.length === "number")
+ ) {
+ if (it) o = it;
+ var i = 0;
+ return function() {
+ if (i >= o.length) return { done: true };
+ return { done: false, value: o[i++] };
+ }
+ }
+
+ throw new TypeError("Invalid attempt to iterate non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+ }
+`;
+helpers.skipFirstGeneratorNext = helper("7.0.0-beta.0")`
+ export default function _skipFirstGeneratorNext(fn) {
+ return function () {
+ var it = fn.apply(this, arguments);
+ it.next();
+ return it;
+ }
+ }
+`;
+helpers.toPrimitive = helper("7.1.5")`
+ export default function _toPrimitive(
+ input,
+ hint /*: "default" | "string" | "number" | void */
+ ) {
+ if (typeof input !== "object" || input === null) return input;
+ var prim = input[Symbol.toPrimitive];
+ if (prim !== undefined) {
+ var res = prim.call(input, hint || "default");
+ if (typeof res !== "object") return res;
+ throw new TypeError("@@toPrimitive must return a primitive value.");
+ }
+ return (hint === "string" ? String : Number)(input);
+ }
+`;
+helpers.toPropertyKey = helper("7.1.5")`
+ import toPrimitive from "toPrimitive";
+
+ export default function _toPropertyKey(arg) {
+ var key = toPrimitive(arg, "string");
+ return typeof key === "symbol" ? key : String(key);
+ }
+`;
+helpers.initializerWarningHelper = helper("7.0.0-beta.0")`
+ export default function _initializerWarningHelper(descriptor, context){
+ throw new Error(
+ 'Decorating class property failed. Please ensure that ' +
+ 'proposal-class-properties is enabled and runs after the decorators transform.'
+ );
+ }
+`;
+helpers.initializerDefineProperty = helper("7.0.0-beta.0")`
+ export default function _initializerDefineProperty(target, property, descriptor, context){
+ if (!descriptor) return;
+
+ Object.defineProperty(target, property, {
+ enumerable: descriptor.enumerable,
+ configurable: descriptor.configurable,
+ writable: descriptor.writable,
+ value: descriptor.initializer ? descriptor.initializer.call(context) : void 0,
+ });
+ }
+`;
+helpers.applyDecoratedDescriptor = helper("7.0.0-beta.0")`
+ export default function _applyDecoratedDescriptor(target, property, decorators, descriptor, context){
+ var desc = {};
+ Object.keys(descriptor).forEach(function(key){
+ desc[key] = descriptor[key];
+ });
+ desc.enumerable = !!desc.enumerable;
+ desc.configurable = !!desc.configurable;
+ if ('value' in desc || desc.initializer){
+ desc.writable = true;
+ }
+
+ desc = decorators.slice().reverse().reduce(function(desc, decorator){
+ return decorator(target, property, desc) || desc;
+ }, desc);
+
+ if (context && desc.initializer !== void 0){
+ desc.value = desc.initializer ? desc.initializer.call(context) : void 0;
+ desc.initializer = undefined;
+ }
+
+ if (desc.initializer === void 0){
+ Object.defineProperty(target, property, desc);
+ desc = null;
+ }
+
+ return desc;
+ }
+`;
+helpers.classPrivateFieldLooseKey = helper("7.0.0-beta.0")`
+ var id = 0;
+ export default function _classPrivateFieldKey(name) {
+ return "__private_" + (id++) + "_" + name;
+ }
+`;
+helpers.classPrivateFieldLooseBase = helper("7.0.0-beta.0")`
+ export default function _classPrivateFieldBase(receiver, privateKey) {
+ if (!Object.prototype.hasOwnProperty.call(receiver, privateKey)) {
+ throw new TypeError("attempted to use private field on non-instance");
+ }
+ return receiver;
+ }
+`;
+helpers.classPrivateFieldGet = helper("7.0.0-beta.0")`
+ import classApplyDescriptorGet from "classApplyDescriptorGet";
+ import classExtractFieldDescriptor from "classExtractFieldDescriptor";
+ export default function _classPrivateFieldGet(receiver, privateMap) {
+ var descriptor = classExtractFieldDescriptor(receiver, privateMap, "get");
+ return classApplyDescriptorGet(receiver, descriptor);
+ }
+`;
+helpers.classPrivateFieldSet = helper("7.0.0-beta.0")`
+ import classApplyDescriptorSet from "classApplyDescriptorSet";
+ import classExtractFieldDescriptor from "classExtractFieldDescriptor";
+ export default function _classPrivateFieldSet(receiver, privateMap, value) {
+ var descriptor = classExtractFieldDescriptor(receiver, privateMap, "set");
+ classApplyDescriptorSet(receiver, descriptor, value);
+ return value;
+ }
+`;
+helpers.classPrivateFieldDestructureSet = helper("7.4.4")`
+ import classApplyDescriptorDestructureSet from "classApplyDescriptorDestructureSet";
+ import classExtractFieldDescriptor from "classExtractFieldDescriptor";
+ export default function _classPrivateFieldDestructureSet(receiver, privateMap) {
+ var descriptor = classExtractFieldDescriptor(receiver, privateMap, "set");
+ return classApplyDescriptorDestructureSet(receiver, descriptor);
+ }
+`;
+helpers.classExtractFieldDescriptor = helper("7.13.10")`
+ export default function _classExtractFieldDescriptor(receiver, privateMap, action) {
+ if (!privateMap.has(receiver)) {
+ throw new TypeError("attempted to " + action + " private field on non-instance");
+ }
+ return privateMap.get(receiver);
+ }
+`;
+helpers.classStaticPrivateFieldSpecGet = helper("7.0.2")`
+ import classApplyDescriptorGet from "classApplyDescriptorGet";
+ import classCheckPrivateStaticAccess from "classCheckPrivateStaticAccess";
+ import classCheckPrivateStaticFieldDescriptor from "classCheckPrivateStaticFieldDescriptor";
+ export default function _classStaticPrivateFieldSpecGet(receiver, classConstructor, descriptor) {
+ classCheckPrivateStaticAccess(receiver, classConstructor);
+ classCheckPrivateStaticFieldDescriptor(descriptor, "get");
+ return classApplyDescriptorGet(receiver, descriptor);
+ }
+`;
+helpers.classStaticPrivateFieldSpecSet = helper("7.0.2")`
+ import classApplyDescriptorSet from "classApplyDescriptorSet";
+ import classCheckPrivateStaticAccess from "classCheckPrivateStaticAccess";
+ import classCheckPrivateStaticFieldDescriptor from "classCheckPrivateStaticFieldDescriptor";
+ export default function _classStaticPrivateFieldSpecSet(receiver, classConstructor, descriptor, value) {
+ classCheckPrivateStaticAccess(receiver, classConstructor);
+ classCheckPrivateStaticFieldDescriptor(descriptor, "set");
+ classApplyDescriptorSet(receiver, descriptor, value);
+ return value;
+ }
+`;
+helpers.classStaticPrivateMethodGet = helper("7.3.2")`
+ import classCheckPrivateStaticAccess from "classCheckPrivateStaticAccess";
+ export default function _classStaticPrivateMethodGet(receiver, classConstructor, method) {
+ classCheckPrivateStaticAccess(receiver, classConstructor);
+ return method;
+ }
+`;
+helpers.classStaticPrivateMethodSet = helper("7.3.2")`
+ export default function _classStaticPrivateMethodSet() {
+ throw new TypeError("attempted to set read only static private field");
+ }
+`;
+helpers.classApplyDescriptorGet = helper("7.13.10")`
+ export default function _classApplyDescriptorGet(receiver, descriptor) {
+ if (descriptor.get) {
+ return descriptor.get.call(receiver);
+ }
+ return descriptor.value;
+ }
+`;
+helpers.classApplyDescriptorSet = helper("7.13.10")`
+ export default function _classApplyDescriptorSet(receiver, descriptor, value) {
+ if (descriptor.set) {
+ descriptor.set.call(receiver, value);
+ } else {
+ if (!descriptor.writable) {
+ // This should only throw in strict mode, but class bodies are
+ // always strict and private fields can only be used inside
+ // class bodies.
+ throw new TypeError("attempted to set read only private field");
+ }
+ descriptor.value = value;
+ }
+ }
+`;
+helpers.classApplyDescriptorDestructureSet = helper("7.13.10")`
+ export default function _classApplyDescriptorDestructureSet(receiver, descriptor) {
+ if (descriptor.set) {
+ if (!("__destrObj" in descriptor)) {
+ descriptor.__destrObj = {
+ set value(v) {
+ descriptor.set.call(receiver, v)
+ },
+ };
+ }
+ return descriptor.__destrObj;
+ } else {
+ if (!descriptor.writable) {
+ // This should only throw in strict mode, but class bodies are
+ // always strict and private fields can only be used inside
+ // class bodies.
+ throw new TypeError("attempted to set read only private field");
+ }
+
+ return descriptor;
+ }
+ }
+`;
+helpers.classStaticPrivateFieldDestructureSet = helper("7.13.10")`
+ import classApplyDescriptorDestructureSet from "classApplyDescriptorDestructureSet";
+ import classCheckPrivateStaticAccess from "classCheckPrivateStaticAccess";
+ import classCheckPrivateStaticFieldDescriptor from "classCheckPrivateStaticFieldDescriptor";
+ export default function _classStaticPrivateFieldDestructureSet(receiver, classConstructor, descriptor) {
+ classCheckPrivateStaticAccess(receiver, classConstructor);
+ classCheckPrivateStaticFieldDescriptor(descriptor, "set");
+ return classApplyDescriptorDestructureSet(receiver, descriptor);
+ }
+`;
+helpers.classCheckPrivateStaticAccess = helper("7.13.10")`
+ export default function _classCheckPrivateStaticAccess(receiver, classConstructor) {
+ if (receiver !== classConstructor) {
+ throw new TypeError("Private static access of wrong provenance");
+ }
+ }
+`;
+helpers.classCheckPrivateStaticFieldDescriptor = helper("7.13.10")`
+ export default function _classCheckPrivateStaticFieldDescriptor(descriptor, action) {
+ if (descriptor === undefined) {
+ throw new TypeError("attempted to " + action + " private static field before its declaration");
+ }
+ }
+`;
+helpers.decorate = helper("7.1.5")`
+ import toArray from "toArray";
+ import toPropertyKey from "toPropertyKey";
+
+ // These comments are stripped by @babel/template
+ /*::
+ type PropertyDescriptor =
+ | {
+ value: any,
+ writable: boolean,
+ configurable: boolean,
+ enumerable: boolean,
+ }
+ | {
+ get?: () => any,
+ set?: (v: any) => void,
+ configurable: boolean,
+ enumerable: boolean,
+ };
+
+ type FieldDescriptor ={
+ writable: boolean,
+ configurable: boolean,
+ enumerable: boolean,
+ };
+
+ type Placement = "static" | "prototype" | "own";
+ type Key = string | symbol; // PrivateName is not supported yet.
+
+ type ElementDescriptor =
+ | {
+ kind: "method",
+ key: Key,
+ placement: Placement,
+ descriptor: PropertyDescriptor
+ }
+ | {
+ kind: "field",
+ key: Key,
+ placement: Placement,
+ descriptor: FieldDescriptor,
+ initializer?: () => any,
+ };
+
+ // This is exposed to the user code
+ type ElementObjectInput = ElementDescriptor & {
+ [@@toStringTag]?: "Descriptor"
+ };
+
+ // This is exposed to the user code
+ type ElementObjectOutput = ElementDescriptor & {
+ [@@toStringTag]?: "Descriptor"
+ extras?: ElementDescriptor[],
+ finisher?: ClassFinisher,
+ };
+
+ // This is exposed to the user code
+ type ClassObject = {
+ [@@toStringTag]?: "Descriptor",
+ kind: "class",
+ elements: ElementDescriptor[],
+ };
+
+ type ElementDecorator = (descriptor: ElementObjectInput) => ?ElementObjectOutput;
+ type ClassDecorator = (descriptor: ClassObject) => ?ClassObject;
+ type ClassFinisher = <A, B>(cl: Class<A>) => Class<B>;
+
+ // Only used by Babel in the transform output, not part of the spec.
+ type ElementDefinition =
+ | {
+ kind: "method",
+ value: any,
+ key: Key,
+ static?: boolean,
+ decorators?: ElementDecorator[],
+ }
+ | {
+ kind: "field",
+ value: () => any,
+ key: Key,
+ static?: boolean,
+ decorators?: ElementDecorator[],
+ };
+
+ declare function ClassFactory<C>(initialize: (instance: C) => void): {
+ F: Class<C>,
+ d: ElementDefinition[]
+ }
+
+ */
+
+ /*::
+ // Various combinations with/without extras and with one or many finishers
+
+ type ElementFinisherExtras = {
+ element: ElementDescriptor,
+ finisher?: ClassFinisher,
+ extras?: ElementDescriptor[],
+ };
+
+ type ElementFinishersExtras = {
+ element: ElementDescriptor,
+ finishers: ClassFinisher[],
+ extras: ElementDescriptor[],
+ };
+
+ type ElementsFinisher = {
+ elements: ElementDescriptor[],
+ finisher?: ClassFinisher,
+ };
+
+ type ElementsFinishers = {
+ elements: ElementDescriptor[],
+ finishers: ClassFinisher[],
+ };
+
+ */
+
+ /*::
+
+ type Placements = {
+ static: Key[],
+ prototype: Key[],
+ own: Key[],
+ };
+
+ */
+
+ // ClassDefinitionEvaluation (Steps 26-*)
+ export default function _decorate(
+ decorators /*: ClassDecorator[] */,
+ factory /*: ClassFactory */,
+ superClass /*: ?Class<*> */,
+ mixins /*: ?Array<Function> */,
+ ) /*: Class<*> */ {
+ var api = _getDecoratorsApi();
+ if (mixins) {
+ for (var i = 0; i < mixins.length; i++) {
+ api = mixins[i](api);
+ }
+ }
+
+ var r = factory(function initialize(O) {
+ api.initializeInstanceElements(O, decorated.elements);
+ }, superClass);
+ var decorated = api.decorateClass(
+ _coalesceClassElements(r.d.map(_createElementDescriptor)),
+ decorators,
+ );
+
+ api.initializeClassElements(r.F, decorated.elements);
+
+ return api.runClassFinishers(r.F, decorated.finishers);
+ }
+
+ function _getDecoratorsApi() {
+ _getDecoratorsApi = function() {
+ return api;
+ };
+
+ var api = {
+ elementsDefinitionOrder: [["method"], ["field"]],
+
+ // InitializeInstanceElements
+ initializeInstanceElements: function(
+ /*::<C>*/ O /*: C */,
+ elements /*: ElementDescriptor[] */,
+ ) {
+ ["method", "field"].forEach(function(kind) {
+ elements.forEach(function(element /*: ElementDescriptor */) {
+ if (element.kind === kind && element.placement === "own") {
+ this.defineClassElement(O, element);
+ }
+ }, this);
+ }, this);
+ },
+
+ // InitializeClassElements
+ initializeClassElements: function(
+ /*::<C>*/ F /*: Class<C> */,
+ elements /*: ElementDescriptor[] */,
+ ) {
+ var proto = F.prototype;
+
+ ["method", "field"].forEach(function(kind) {
+ elements.forEach(function(element /*: ElementDescriptor */) {
+ var placement = element.placement;
+ if (
+ element.kind === kind &&
+ (placement === "static" || placement === "prototype")
+ ) {
+ var receiver = placement === "static" ? F : proto;
+ this.defineClassElement(receiver, element);
+ }
+ }, this);
+ }, this);
+ },
+
+ // DefineClassElement
+ defineClassElement: function(
+ /*::<C>*/ receiver /*: C | Class<C> */,
+ element /*: ElementDescriptor */,
+ ) {
+ var descriptor /*: PropertyDescriptor */ = element.descriptor;
+ if (element.kind === "field") {
+ var initializer = element.initializer;
+ descriptor = {
+ enumerable: descriptor.enumerable,
+ writable: descriptor.writable,
+ configurable: descriptor.configurable,
+ value: initializer === void 0 ? void 0 : initializer.call(receiver),
+ };
+ }
+ Object.defineProperty(receiver, element.key, descriptor);
+ },
+
+ // DecorateClass
+ decorateClass: function(
+ elements /*: ElementDescriptor[] */,
+ decorators /*: ClassDecorator[] */,
+ ) /*: ElementsFinishers */ {
+ var newElements /*: ElementDescriptor[] */ = [];
+ var finishers /*: ClassFinisher[] */ = [];
+ var placements /*: Placements */ = {
+ static: [],
+ prototype: [],
+ own: [],
+ };
+
+ elements.forEach(function(element /*: ElementDescriptor */) {
+ this.addElementPlacement(element, placements);
+ }, this);
+
+ elements.forEach(function(element /*: ElementDescriptor */) {
+ if (!_hasDecorators(element)) return newElements.push(element);
+
+ var elementFinishersExtras /*: ElementFinishersExtras */ = this.decorateElement(
+ element,
+ placements,
+ );
+ newElements.push(elementFinishersExtras.element);
+ newElements.push.apply(newElements, elementFinishersExtras.extras);
+ finishers.push.apply(finishers, elementFinishersExtras.finishers);
+ }, this);
+
+ if (!decorators) {
+ return { elements: newElements, finishers: finishers };
+ }
+
+ var result /*: ElementsFinishers */ = this.decorateConstructor(
+ newElements,
+ decorators,
+ );
+ finishers.push.apply(finishers, result.finishers);
+ result.finishers = finishers;
+
+ return result;
+ },
+
+ // AddElementPlacement
+ addElementPlacement: function(
+ element /*: ElementDescriptor */,
+ placements /*: Placements */,
+ silent /*: boolean */,
+ ) {
+ var keys = placements[element.placement];
+ if (!silent && keys.indexOf(element.key) !== -1) {
+ throw new TypeError("Duplicated element (" + element.key + ")");
+ }
+ keys.push(element.key);
+ },
+
+ // DecorateElement
+ decorateElement: function(
+ element /*: ElementDescriptor */,
+ placements /*: Placements */,
+ ) /*: ElementFinishersExtras */ {
+ var extras /*: ElementDescriptor[] */ = [];
+ var finishers /*: ClassFinisher[] */ = [];
+
+ for (
+ var decorators = element.decorators, i = decorators.length - 1;
+ i >= 0;
+ i--
+ ) {
+ // (inlined) RemoveElementPlacement
+ var keys = placements[element.placement];
+ keys.splice(keys.indexOf(element.key), 1);
+
+ var elementObject /*: ElementObjectInput */ = this.fromElementDescriptor(
+ element,
+ );
+ var elementFinisherExtras /*: ElementFinisherExtras */ = this.toElementFinisherExtras(
+ (0, decorators[i])(elementObject) /*: ElementObjectOutput */ ||
+ elementObject,
+ );
+
+ element = elementFinisherExtras.element;
+ this.addElementPlacement(element, placements);
+
+ if (elementFinisherExtras.finisher) {
+ finishers.push(elementFinisherExtras.finisher);
+ }
+
+ var newExtras /*: ElementDescriptor[] | void */ =
+ elementFinisherExtras.extras;
+ if (newExtras) {
+ for (var j = 0; j < newExtras.length; j++) {
+ this.addElementPlacement(newExtras[j], placements);
+ }
+ extras.push.apply(extras, newExtras);
+ }
+ }
+
+ return { element: element, finishers: finishers, extras: extras };
+ },
+
+ // DecorateConstructor
+ decorateConstructor: function(
+ elements /*: ElementDescriptor[] */,
+ decorators /*: ClassDecorator[] */,
+ ) /*: ElementsFinishers */ {
+ var finishers /*: ClassFinisher[] */ = [];
+
+ for (var i = decorators.length - 1; i >= 0; i--) {
+ var obj /*: ClassObject */ = this.fromClassDescriptor(elements);
+ var elementsAndFinisher /*: ElementsFinisher */ = this.toClassDescriptor(
+ (0, decorators[i])(obj) /*: ClassObject */ || obj,
+ );
+
+ if (elementsAndFinisher.finisher !== undefined) {
+ finishers.push(elementsAndFinisher.finisher);
+ }
+
+ if (elementsAndFinisher.elements !== undefined) {
+ elements = elementsAndFinisher.elements;
+
+ for (var j = 0; j < elements.length - 1; j++) {
+ for (var k = j + 1; k < elements.length; k++) {
+ if (
+ elements[j].key === elements[k].key &&
+ elements[j].placement === elements[k].placement
+ ) {
+ throw new TypeError(
+ "Duplicated element (" + elements[j].key + ")",
+ );
+ }
+ }
+ }
+ }
+ }
+
+ return { elements: elements, finishers: finishers };
+ },
+
+ // FromElementDescriptor
+ fromElementDescriptor: function(
+ element /*: ElementDescriptor */,
+ ) /*: ElementObject */ {
+ var obj /*: ElementObject */ = {
+ kind: element.kind,
+ key: element.key,
+ placement: element.placement,
+ descriptor: element.descriptor,
+ };
+
+ var desc = {
+ value: "Descriptor",
+ configurable: true,
+ };
+ Object.defineProperty(obj, Symbol.toStringTag, desc);
+
+ if (element.kind === "field") obj.initializer = element.initializer;
+
+ return obj;
+ },
+
+ // ToElementDescriptors
+ toElementDescriptors: function(
+ elementObjects /*: ElementObject[] */,
+ ) /*: ElementDescriptor[] */ {
+ if (elementObjects === undefined) return;
+ return toArray(elementObjects).map(function(elementObject) {
+ var element = this.toElementDescriptor(elementObject);
+ this.disallowProperty(elementObject, "finisher", "An element descriptor");
+ this.disallowProperty(elementObject, "extras", "An element descriptor");
+ return element;
+ }, this);
+ },
+
+ // ToElementDescriptor
+ toElementDescriptor: function(
+ elementObject /*: ElementObject */,
+ ) /*: ElementDescriptor */ {
+ var kind = String(elementObject.kind);
+ if (kind !== "method" && kind !== "field") {
+ throw new TypeError(
+ 'An element descriptor\\'s .kind property must be either "method" or' +
+ ' "field", but a decorator created an element descriptor with' +
+ ' .kind "' +
+ kind +
+ '"',
+ );
+ }
+
+ var key = toPropertyKey(elementObject.key);
+
+ var placement = String(elementObject.placement);
+ if (
+ placement !== "static" &&
+ placement !== "prototype" &&
+ placement !== "own"
+ ) {
+ throw new TypeError(
+ 'An element descriptor\\'s .placement property must be one of "static",' +
+ ' "prototype" or "own", but a decorator created an element descriptor' +
+ ' with .placement "' +
+ placement +
+ '"',
+ );
+ }
+
+ var descriptor /*: PropertyDescriptor */ = elementObject.descriptor;
+
+ this.disallowProperty(elementObject, "elements", "An element descriptor");
+
+ var element /*: ElementDescriptor */ = {
+ kind: kind,
+ key: key,
+ placement: placement,
+ descriptor: Object.assign({}, descriptor),
+ };
+
+ if (kind !== "field") {
+ this.disallowProperty(elementObject, "initializer", "A method descriptor");
+ } else {
+ this.disallowProperty(
+ descriptor,
+ "get",
+ "The property descriptor of a field descriptor",
+ );
+ this.disallowProperty(
+ descriptor,
+ "set",
+ "The property descriptor of a field descriptor",
+ );
+ this.disallowProperty(
+ descriptor,
+ "value",
+ "The property descriptor of a field descriptor",
+ );
+
+ element.initializer = elementObject.initializer;
+ }
+
+ return element;
+ },
+
+ toElementFinisherExtras: function(
+ elementObject /*: ElementObject */,
+ ) /*: ElementFinisherExtras */ {
+ var element /*: ElementDescriptor */ = this.toElementDescriptor(
+ elementObject,
+ );
+ var finisher /*: ClassFinisher */ = _optionalCallableProperty(
+ elementObject,
+ "finisher",
+ );
+ var extras /*: ElementDescriptors[] */ = this.toElementDescriptors(
+ elementObject.extras,
+ );
+
+ return { element: element, finisher: finisher, extras: extras };
+ },
+
+ // FromClassDescriptor
+ fromClassDescriptor: function(
+ elements /*: ElementDescriptor[] */,
+ ) /*: ClassObject */ {
+ var obj = {
+ kind: "class",
+ elements: elements.map(this.fromElementDescriptor, this),
+ };
+
+ var desc = { value: "Descriptor", configurable: true };
+ Object.defineProperty(obj, Symbol.toStringTag, desc);
+
+ return obj;
+ },
+
+ // ToClassDescriptor
+ toClassDescriptor: function(
+ obj /*: ClassObject */,
+ ) /*: ElementsFinisher */ {
+ var kind = String(obj.kind);
+ if (kind !== "class") {
+ throw new TypeError(
+ 'A class descriptor\\'s .kind property must be "class", but a decorator' +
+ ' created a class descriptor with .kind "' +
+ kind +
+ '"',
+ );
+ }
+
+ this.disallowProperty(obj, "key", "A class descriptor");
+ this.disallowProperty(obj, "placement", "A class descriptor");
+ this.disallowProperty(obj, "descriptor", "A class descriptor");
+ this.disallowProperty(obj, "initializer", "A class descriptor");
+ this.disallowProperty(obj, "extras", "A class descriptor");
+
+ var finisher = _optionalCallableProperty(obj, "finisher");
+ var elements = this.toElementDescriptors(obj.elements);
+
+ return { elements: elements, finisher: finisher };
+ },
+
+ // RunClassFinishers
+ runClassFinishers: function(
+ constructor /*: Class<*> */,
+ finishers /*: ClassFinisher[] */,
+ ) /*: Class<*> */ {
+ for (var i = 0; i < finishers.length; i++) {
+ var newConstructor /*: ?Class<*> */ = (0, finishers[i])(constructor);
+ if (newConstructor !== undefined) {
+ // NOTE: This should check if IsConstructor(newConstructor) is false.
+ if (typeof newConstructor !== "function") {
+ throw new TypeError("Finishers must return a constructor.");
+ }
+ constructor = newConstructor;
+ }
+ }
+ return constructor;
+ },
+
+ disallowProperty: function(obj, name, objectType) {
+ if (obj[name] !== undefined) {
+ throw new TypeError(objectType + " can't have a ." + name + " property.");
+ }
+ }
+ };
+
+ return api;
+ }
+
+ // ClassElementEvaluation
+ function _createElementDescriptor(
+ def /*: ElementDefinition */,
+ ) /*: ElementDescriptor */ {
+ var key = toPropertyKey(def.key);
+
+ var descriptor /*: PropertyDescriptor */;
+ if (def.kind === "method") {
+ descriptor = {
+ value: def.value,
+ writable: true,
+ configurable: true,
+ enumerable: false,
+ };
+ } else if (def.kind === "get") {
+ descriptor = { get: def.value, configurable: true, enumerable: false };
+ } else if (def.kind === "set") {
+ descriptor = { set: def.value, configurable: true, enumerable: false };
+ } else if (def.kind === "field") {
+ descriptor = { configurable: true, writable: true, enumerable: true };
+ }
+
+ var element /*: ElementDescriptor */ = {
+ kind: def.kind === "field" ? "field" : "method",
+ key: key,
+ placement: def.static
+ ? "static"
+ : def.kind === "field"
+ ? "own"
+ : "prototype",
+ descriptor: descriptor,
+ };
+ if (def.decorators) element.decorators = def.decorators;
+ if (def.kind === "field") element.initializer = def.value;
+
+ return element;
+ }
+
+ // CoalesceGetterSetter
+ function _coalesceGetterSetter(
+ element /*: ElementDescriptor */,
+ other /*: ElementDescriptor */,
+ ) {
+ if (element.descriptor.get !== undefined) {
+ other.descriptor.get = element.descriptor.get;
+ } else {
+ other.descriptor.set = element.descriptor.set;
+ }
+ }
+
+ // CoalesceClassElements
+ function _coalesceClassElements(
+ elements /*: ElementDescriptor[] */,
+ ) /*: ElementDescriptor[] */ {
+ var newElements /*: ElementDescriptor[] */ = [];
+
+ var isSameElement = function(
+ other /*: ElementDescriptor */,
+ ) /*: boolean */ {
+ return (
+ other.kind === "method" &&
+ other.key === element.key &&
+ other.placement === element.placement
+ );
+ };
+
+ for (var i = 0; i < elements.length; i++) {
+ var element /*: ElementDescriptor */ = elements[i];
+ var other /*: ElementDescriptor */;
+
+ if (
+ element.kind === "method" &&
+ (other = newElements.find(isSameElement))
+ ) {
+ if (
+ _isDataDescriptor(element.descriptor) ||
+ _isDataDescriptor(other.descriptor)
+ ) {
+ if (_hasDecorators(element) || _hasDecorators(other)) {
+ throw new ReferenceError(
+ "Duplicated methods (" + element.key + ") can't be decorated.",
+ );
+ }
+ other.descriptor = element.descriptor;
+ } else {
+ if (_hasDecorators(element)) {
+ if (_hasDecorators(other)) {
+ throw new ReferenceError(
+ "Decorators can't be placed on different accessors with for " +
+ "the same property (" +
+ element.key +
+ ").",
+ );
+ }
+ other.decorators = element.decorators;
+ }
+ _coalesceGetterSetter(element, other);
+ }
+ } else {
+ newElements.push(element);
+ }
+ }
+
+ return newElements;
+ }
+
+ function _hasDecorators(element /*: ElementDescriptor */) /*: boolean */ {
+ return element.decorators && element.decorators.length;
+ }
+
+ function _isDataDescriptor(desc /*: PropertyDescriptor */) /*: boolean */ {
+ return (
+ desc !== undefined &&
+ !(desc.value === undefined && desc.writable === undefined)
+ );
+ }
+
+ function _optionalCallableProperty /*::<T>*/(
+ obj /*: T */,
+ name /*: $Keys<T> */,
+ ) /*: ?Function */ {
+ var value = obj[name];
+ if (value !== undefined && typeof value !== "function") {
+ throw new TypeError("Expected '" + name + "' to be a function");
+ }
+ return value;
+ }
+
+`;
+helpers.classPrivateMethodGet = helper("7.1.6")`
+ export default function _classPrivateMethodGet(receiver, privateSet, fn) {
+ if (!privateSet.has(receiver)) {
+ throw new TypeError("attempted to get private field on non-instance");
+ }
+ return fn;
+ }
+`;
+helpers.checkPrivateRedeclaration = helper("7.14.1")`
+ export default function _checkPrivateRedeclaration(obj, privateCollection) {
+ if (privateCollection.has(obj)) {
+ throw new TypeError("Cannot initialize the same private elements twice on an object");
+ }
+ }
+`;
+helpers.classPrivateFieldInitSpec = helper("7.14.1")`
+ import checkPrivateRedeclaration from "checkPrivateRedeclaration";
+
+ export default function _classPrivateFieldInitSpec(obj, privateMap, value) {
+ checkPrivateRedeclaration(obj, privateMap);
+ privateMap.set(obj, value);
+ }
+`;
+helpers.classPrivateMethodInitSpec = helper("7.14.1")`
+ import checkPrivateRedeclaration from "checkPrivateRedeclaration";
+
+ export default function _classPrivateMethodInitSpec(obj, privateSet) {
+ checkPrivateRedeclaration(obj, privateSet);
+ privateSet.add(obj);
+ }
+`;
+{
+ helpers.classPrivateMethodSet = helper("7.1.6")`
+ export default function _classPrivateMethodSet() {
+ throw new TypeError("attempted to reassign private method");
+ }
+ `;
+}
+helpers.identity = helper("7.17.0")`
+ export default function _identity(x) {
+ return x;
+ }
+`; \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-21 02:28:10 +0000