Innovenergy_trunk/frontend/node_modules/emittery/legacy.js

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'use strict';
function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
const anyMap = new WeakMap();
const eventsMap = new WeakMap();
const resolvedPromise = Promise.resolve();
function assertEventName(eventName) {
if (typeof eventName !== 'string') {
throw new TypeError('eventName must be a string');
}
}
function assertListener(listener) {
if (typeof listener !== 'function') {
throw new TypeError('listener must be a function');
}
}
function getListeners(instance, eventName) {
const events = eventsMap.get(instance);
if (!events.has(eventName)) {
events.set(eventName, new Set());
}
return events.get(eventName);
}
class Emittery {
constructor() {
anyMap.set(this, new Set());
eventsMap.set(this, new Map());
}
on(eventName, listener) {
assertEventName(eventName);
assertListener(listener);
getListeners(this, eventName).add(listener);
return this.off.bind(this, eventName, listener);
}
off(eventName, listener) {
assertEventName(eventName);
assertListener(listener);
getListeners(this, eventName).delete(listener);
}
once(eventName) {
return new Promise(resolve => {
assertEventName(eventName);
const off = this.on(eventName, data => {
off();
resolve(data);
});
});
}
emit(eventName, eventData) {
var _this = this;
return _asyncToGenerator(function* () {
assertEventName(eventName);
const listeners = getListeners(_this, eventName);
const anyListeners = anyMap.get(_this);
const staticListeners = [...listeners];
const staticAnyListeners = [...anyListeners];
yield resolvedPromise;
return Promise.all([...staticListeners.map((() => {
var _ref = _asyncToGenerator(function* (listener) {
if (listeners.has(listener)) {
return listener(eventData);
}
});
return function (_x) {
return _ref.apply(this, arguments);
};
})()), ...staticAnyListeners.map((() => {
var _ref2 = _asyncToGenerator(function* (listener) {
if (anyListeners.has(listener)) {
return listener(eventName, eventData);
}
});
return function (_x2) {
return _ref2.apply(this, arguments);
};
})())]);
})();
}
emitSerial(eventName, eventData) {
var _this2 = this;
return _asyncToGenerator(function* () {
assertEventName(eventName);
const listeners = getListeners(_this2, eventName);
const anyListeners = anyMap.get(_this2);
const staticListeners = [...listeners];
const staticAnyListeners = [...anyListeners];
yield resolvedPromise;
/* eslint-disable no-await-in-loop */
for (const listener of staticListeners) {
if (listeners.has(listener)) {
yield listener(eventData);
}
}
for (const listener of staticAnyListeners) {
if (anyListeners.has(listener)) {
yield listener(eventName, eventData);
}
}
/* eslint-enable no-await-in-loop */
})();
}
onAny(listener) {
assertListener(listener);
anyMap.get(this).add(listener);
return this.offAny.bind(this, listener);
}
offAny(listener) {
assertListener(listener);
anyMap.get(this).delete(listener);
}
clearListeners(eventName) {
if (typeof eventName === 'string') {
getListeners(this, eventName).clear();
} else {
anyMap.get(this).clear();
for (const listeners of eventsMap.get(this).values()) {
listeners.clear();
}
}
}
listenerCount(eventName) {
if (typeof eventName === 'string') {
return anyMap.get(this).size + getListeners(this, eventName).size;
}
if (typeof eventName !== 'undefined') {
assertEventName(eventName);
}
let count = anyMap.get(this).size;
for (const value of eventsMap.get(this).values()) {
count += value.size;
}
return count;
}
}
// Subclass used to encourage TS users to type their events.
Emittery.Typed = class extends Emittery {};
Object.defineProperty(Emittery.Typed, 'Typed', {
enumerable: false,
value: undefined
});
module.exports = Emittery;