From ddbc23dadee77bad50e820e199de9e33f1961961 Mon Sep 17 00:00:00 2001 From: Justin Zhu Date: Mon, 9 Oct 2023 15:21:36 +0800 Subject: [PATCH] chore: add umd format file --- events.js | 2 +- events.umd.js | 489 ++++++++++++++++++++++++++++++++++++++++++++++ events.umd.min.js | 1 + package.json | 7 +- rollup.config.mjs | 29 +++ 5 files changed, 526 insertions(+), 2 deletions(-) create mode 100644 events.umd.js create mode 100644 events.umd.min.js create mode 100644 rollup.config.mjs diff --git a/events.js b/events.js index 34b69a0..620ab33 100644 --- a/events.js +++ b/events.js @@ -53,8 +53,8 @@ var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) { function EventEmitter() { EventEmitter.init.call(this); } +EventEmitter.once = once; module.exports = EventEmitter; -module.exports.once = once; // Backwards-compat with node 0.10.x EventEmitter.EventEmitter = EventEmitter; diff --git a/events.umd.js b/events.umd.js new file mode 100644 index 0000000..0081d2e --- /dev/null +++ b/events.umd.js @@ -0,0 +1,489 @@ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.EventEmitter = factory()); +})(this, (function () { 'use strict'; + + function getDefaultExportFromCjs (x) { + return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x; + } + + var R = typeof Reflect === 'object' ? Reflect : null; + var ReflectApply = R && typeof R.apply === 'function' + ? R.apply + : function ReflectApply(target, receiver, args) { + return Function.prototype.apply.call(target, receiver, args); + }; + + var ReflectOwnKeys; + if (R && typeof R.ownKeys === 'function') { + ReflectOwnKeys = R.ownKeys; + } else if (Object.getOwnPropertySymbols) { + ReflectOwnKeys = function ReflectOwnKeys(target) { + return Object.getOwnPropertyNames(target) + .concat(Object.getOwnPropertySymbols(target)); + }; + } else { + ReflectOwnKeys = function ReflectOwnKeys(target) { + return Object.getOwnPropertyNames(target); + }; + } + + function ProcessEmitWarning(warning) { + if (console && console.warn) console.warn(warning); + } + + var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) { + return value !== value; + }; + + function EventEmitter() { + EventEmitter.init.call(this); + } + EventEmitter.once = once; + var events = EventEmitter; + + // Backwards-compat with node 0.10.x + EventEmitter.EventEmitter = EventEmitter; + + EventEmitter.prototype._events = undefined; + EventEmitter.prototype._eventsCount = 0; + EventEmitter.prototype._maxListeners = undefined; + + // By default EventEmitters will print a warning if more than 10 listeners are + // added to it. This is a useful default which helps finding memory leaks. + var defaultMaxListeners = 10; + + function checkListener(listener) { + if (typeof listener !== 'function') { + throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener); + } + } + + Object.defineProperty(EventEmitter, 'defaultMaxListeners', { + enumerable: true, + get: function() { + return defaultMaxListeners; + }, + set: function(arg) { + if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) { + throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.'); + } + defaultMaxListeners = arg; + } + }); + + EventEmitter.init = function() { + + if (this._events === undefined || + this._events === Object.getPrototypeOf(this)._events) { + this._events = Object.create(null); + this._eventsCount = 0; + } + + this._maxListeners = this._maxListeners || undefined; + }; + + // Obviously not all Emitters should be limited to 10. This function allows + // that to be increased. Set to zero for unlimited. + EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) { + if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) { + throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.'); + } + this._maxListeners = n; + return this; + }; + + function _getMaxListeners(that) { + if (that._maxListeners === undefined) + return EventEmitter.defaultMaxListeners; + return that._maxListeners; + } + + EventEmitter.prototype.getMaxListeners = function getMaxListeners() { + return _getMaxListeners(this); + }; + + EventEmitter.prototype.emit = function emit(type) { + var args = []; + for (var i = 1; i < arguments.length; i++) args.push(arguments[i]); + var doError = (type === 'error'); + + var events = this._events; + if (events !== undefined) + doError = (doError && events.error === undefined); + else if (!doError) + return false; + + // If there is no 'error' event listener then throw. + if (doError) { + var er; + if (args.length > 0) + er = args[0]; + if (er instanceof Error) { + // Note: The comments on the `throw` lines are intentional, they show + // up in Node's output if this results in an unhandled exception. + throw er; // Unhandled 'error' event + } + // At least give some kind of context to the user + var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : '')); + err.context = er; + throw err; // Unhandled 'error' event + } + + var handler = events[type]; + + if (handler === undefined) + return false; + + if (typeof handler === 'function') { + ReflectApply(handler, this, args); + } else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + ReflectApply(listeners[i], this, args); + } + + return true; + }; + + function _addListener(target, type, listener, prepend) { + var m; + var events; + var existing; + + checkListener(listener); + + events = target._events; + if (events === undefined) { + events = target._events = Object.create(null); + target._eventsCount = 0; + } else { + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (events.newListener !== undefined) { + target.emit('newListener', type, + listener.listener ? listener.listener : listener); + + // Re-assign `events` because a newListener handler could have caused the + // this._events to be assigned to a new object + events = target._events; + } + existing = events[type]; + } + + if (existing === undefined) { + // Optimize the case of one listener. Don't need the extra array object. + existing = events[type] = listener; + ++target._eventsCount; + } else { + if (typeof existing === 'function') { + // Adding the second element, need to change to array. + existing = events[type] = + prepend ? [listener, existing] : [existing, listener]; + // If we've already got an array, just append. + } else if (prepend) { + existing.unshift(listener); + } else { + existing.push(listener); + } + + // Check for listener leak + m = _getMaxListeners(target); + if (m > 0 && existing.length > m && !existing.warned) { + existing.warned = true; + // No error code for this since it is a Warning + // eslint-disable-next-line no-restricted-syntax + var w = new Error('Possible EventEmitter memory leak detected. ' + + existing.length + ' ' + String(type) + ' listeners ' + + 'added. Use emitter.setMaxListeners() to ' + + 'increase limit'); + w.name = 'MaxListenersExceededWarning'; + w.emitter = target; + w.type = type; + w.count = existing.length; + ProcessEmitWarning(w); + } + } + + return target; + } + + EventEmitter.prototype.addListener = function addListener(type, listener) { + return _addListener(this, type, listener, false); + }; + + EventEmitter.prototype.on = EventEmitter.prototype.addListener; + + EventEmitter.prototype.prependListener = + function prependListener(type, listener) { + return _addListener(this, type, listener, true); + }; + + function onceWrapper() { + if (!this.fired) { + this.target.removeListener(this.type, this.wrapFn); + this.fired = true; + if (arguments.length === 0) + return this.listener.call(this.target); + return this.listener.apply(this.target, arguments); + } + } + + function _onceWrap(target, type, listener) { + var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener }; + var wrapped = onceWrapper.bind(state); + wrapped.listener = listener; + state.wrapFn = wrapped; + return wrapped; + } + + EventEmitter.prototype.once = function once(type, listener) { + checkListener(listener); + this.on(type, _onceWrap(this, type, listener)); + return this; + }; + + EventEmitter.prototype.prependOnceListener = + function prependOnceListener(type, listener) { + checkListener(listener); + this.prependListener(type, _onceWrap(this, type, listener)); + return this; + }; + + // Emits a 'removeListener' event if and only if the listener was removed. + EventEmitter.prototype.removeListener = + function removeListener(type, listener) { + var list, events, position, i, originalListener; + + checkListener(listener); + + events = this._events; + if (events === undefined) + return this; + + list = events[type]; + if (list === undefined) + return this; + + if (list === listener || list.listener === listener) { + if (--this._eventsCount === 0) + this._events = Object.create(null); + else { + delete events[type]; + if (events.removeListener) + this.emit('removeListener', type, list.listener || listener); + } + } else if (typeof list !== 'function') { + position = -1; + + for (i = list.length - 1; i >= 0; i--) { + if (list[i] === listener || list[i].listener === listener) { + originalListener = list[i].listener; + position = i; + break; + } + } + + if (position < 0) + return this; + + if (position === 0) + list.shift(); + else { + spliceOne(list, position); + } + + if (list.length === 1) + events[type] = list[0]; + + if (events.removeListener !== undefined) + this.emit('removeListener', type, originalListener || listener); + } + + return this; + }; + + EventEmitter.prototype.off = EventEmitter.prototype.removeListener; + + EventEmitter.prototype.removeAllListeners = + function removeAllListeners(type) { + var listeners, events, i; + + events = this._events; + if (events === undefined) + return this; + + // not listening for removeListener, no need to emit + if (events.removeListener === undefined) { + if (arguments.length === 0) { + this._events = Object.create(null); + this._eventsCount = 0; + } else if (events[type] !== undefined) { + if (--this._eventsCount === 0) + this._events = Object.create(null); + else + delete events[type]; + } + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + var keys = Object.keys(events); + var key; + for (i = 0; i < keys.length; ++i) { + key = keys[i]; + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = Object.create(null); + this._eventsCount = 0; + return this; + } + + listeners = events[type]; + + if (typeof listeners === 'function') { + this.removeListener(type, listeners); + } else if (listeners !== undefined) { + // LIFO order + for (i = listeners.length - 1; i >= 0; i--) { + this.removeListener(type, listeners[i]); + } + } + + return this; + }; + + function _listeners(target, type, unwrap) { + var events = target._events; + + if (events === undefined) + return []; + + var evlistener = events[type]; + if (evlistener === undefined) + return []; + + if (typeof evlistener === 'function') + return unwrap ? [evlistener.listener || evlistener] : [evlistener]; + + return unwrap ? + unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length); + } + + EventEmitter.prototype.listeners = function listeners(type) { + return _listeners(this, type, true); + }; + + EventEmitter.prototype.rawListeners = function rawListeners(type) { + return _listeners(this, type, false); + }; + + EventEmitter.listenerCount = function(emitter, type) { + if (typeof emitter.listenerCount === 'function') { + return emitter.listenerCount(type); + } else { + return listenerCount.call(emitter, type); + } + }; + + EventEmitter.prototype.listenerCount = listenerCount; + function listenerCount(type) { + var events = this._events; + + if (events !== undefined) { + var evlistener = events[type]; + + if (typeof evlistener === 'function') { + return 1; + } else if (evlistener !== undefined) { + return evlistener.length; + } + } + + return 0; + } + + EventEmitter.prototype.eventNames = function eventNames() { + return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : []; + }; + + function arrayClone(arr, n) { + var copy = new Array(n); + for (var i = 0; i < n; ++i) + copy[i] = arr[i]; + return copy; + } + + function spliceOne(list, index) { + for (; index + 1 < list.length; index++) + list[index] = list[index + 1]; + list.pop(); + } + + function unwrapListeners(arr) { + var ret = new Array(arr.length); + for (var i = 0; i < ret.length; ++i) { + ret[i] = arr[i].listener || arr[i]; + } + return ret; + } + + function once(emitter, name) { + return new Promise(function (resolve, reject) { + function errorListener(err) { + emitter.removeListener(name, resolver); + reject(err); + } + + function resolver() { + if (typeof emitter.removeListener === 'function') { + emitter.removeListener('error', errorListener); + } + resolve([].slice.call(arguments)); + } + eventTargetAgnosticAddListener(emitter, name, resolver, { once: true }); + if (name !== 'error') { + addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true }); + } + }); + } + + function addErrorHandlerIfEventEmitter(emitter, handler, flags) { + if (typeof emitter.on === 'function') { + eventTargetAgnosticAddListener(emitter, 'error', handler, flags); + } + } + + function eventTargetAgnosticAddListener(emitter, name, listener, flags) { + if (typeof emitter.on === 'function') { + if (flags.once) { + emitter.once(name, listener); + } else { + emitter.on(name, listener); + } + } else if (typeof emitter.addEventListener === 'function') { + // EventTarget does not have `error` event semantics like Node + // EventEmitters, we do not listen for `error` events here. + emitter.addEventListener(name, function wrapListener(arg) { + // IE does not have builtin `{ once: true }` support so we + // have to do it manually. + if (flags.once) { + emitter.removeEventListener(name, wrapListener); + } + listener(arg); + }); + } else { + throw new TypeError('The "emitter" argument must be of type EventEmitter. Received type ' + typeof emitter); + } + } + + var events$1 = /*@__PURE__*/getDefaultExportFromCjs(events); + + return events$1; + +})); diff --git a/events.umd.min.js b/events.umd.min.js new file mode 100644 index 0000000..b158772 --- /dev/null +++ b/events.umd.min.js @@ -0,0 +1 @@ +!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).EventEmitter=t()}(this,(function(){"use strict";function getDefaultExportFromCjs(e){return e&&e.__esModule&&Object.prototype.hasOwnProperty.call(e,"default")?e.default:e}var e,t="object"==typeof Reflect?Reflect:null,n=t&&"function"==typeof t.apply?t.apply:function ReflectApply(e,t,n){return Function.prototype.apply.call(e,t,n)};e=t&&"function"==typeof t.ownKeys?t.ownKeys:Object.getOwnPropertySymbols?function ReflectOwnKeys(e){return Object.getOwnPropertyNames(e).concat(Object.getOwnPropertySymbols(e))}:function ReflectOwnKeys(e){return Object.getOwnPropertyNames(e)};var r=Number.isNaN||function NumberIsNaN(e){return e!=e};function EventEmitter(){EventEmitter.init.call(this)}EventEmitter.once=function once(e,t){return new Promise((function(n,r){function errorListener(n){e.removeListener(t,resolver),r(n)}function resolver(){"function"==typeof e.removeListener&&e.removeListener("error",errorListener),n([].slice.call(arguments))}eventTargetAgnosticAddListener(e,t,resolver,{once:!0}),"error"!==t&&function addErrorHandlerIfEventEmitter(e,t,n){"function"==typeof e.on&&eventTargetAgnosticAddListener(e,"error",t,n)}(e,errorListener,{once:!0})}))};var i=EventEmitter;EventEmitter.EventEmitter=EventEmitter,EventEmitter.prototype._events=void 0,EventEmitter.prototype._eventsCount=0,EventEmitter.prototype._maxListeners=void 0;var o=10;function checkListener(e){if("function"!=typeof e)throw new TypeError('The "listener" argument must be of type Function. Received type '+typeof e)}function _getMaxListeners(e){return void 0===e._maxListeners?EventEmitter.defaultMaxListeners:e._maxListeners}function _addListener(e,t,n,r){var i,o,s;if(checkListener(n),void 0===(o=e._events)?(o=e._events=Object.create(null),e._eventsCount=0):(void 0!==o.newListener&&(e.emit("newListener",t,n.listener?n.listener:n),o=e._events),s=o[t]),void 0===s)s=o[t]=n,++e._eventsCount;else if("function"==typeof s?s=o[t]=r?[n,s]:[s,n]:r?s.unshift(n):s.push(n),(i=_getMaxListeners(e))>0&&s.length>i&&!s.warned){s.warned=!0;var u=new Error("Possible EventEmitter memory leak detected. "+s.length+" "+String(t)+" listeners added. Use emitter.setMaxListeners() to increase limit");u.name="MaxListenersExceededWarning",u.emitter=e,u.type=t,u.count=s.length,function ProcessEmitWarning(e){console&&console.warn&&console.warn(e)}(u)}return e}function onceWrapper(){if(!this.fired)return this.target.removeListener(this.type,this.wrapFn),this.fired=!0,0===arguments.length?this.listener.call(this.target):this.listener.apply(this.target,arguments)}function _onceWrap(e,t,n){var r={fired:!1,wrapFn:void 0,target:e,type:t,listener:n},i=onceWrapper.bind(r);return i.listener=n,r.wrapFn=i,i}function _listeners(e,t,n){var r=e._events;if(void 0===r)return[];var i=r[t];return void 0===i?[]:"function"==typeof i?n?[i.listener||i]:[i]:n?function unwrapListeners(e){for(var t=new Array(e.length),n=0;n0&&(s=t[0]),s instanceof Error)throw s;var u=new Error("Unhandled error."+(s?" ("+s.message+")":""));throw u.context=s,u}var f=o[e];if(void 0===f)return!1;if("function"==typeof f)n(f,this,t);else{var v=f.length,c=arrayClone(f,v);for(r=0;r=0;o--)if(n[o]===t||n[o].listener===t){s=n[o].listener,i=o;break}if(i<0)return this;0===i?n.shift():function spliceOne(e,t){for(;t+1=0;r--)this.removeListener(e,t[r]);return this},EventEmitter.prototype.listeners=function listeners(e){return _listeners(this,e,!0)},EventEmitter.prototype.rawListeners=function rawListeners(e){return _listeners(this,e,!1)},EventEmitter.listenerCount=function(e,t){return"function"==typeof e.listenerCount?e.listenerCount(t):listenerCount.call(e,t)},EventEmitter.prototype.listenerCount=listenerCount,EventEmitter.prototype.eventNames=function eventNames(){return this._eventsCount>0?e(this._events):[]},getDefaultExportFromCjs(i)})); diff --git a/package.json b/package.json index 6d8c770..7379b9a 100644 --- a/package.json +++ b/package.json @@ -22,16 +22,21 @@ "node": ">=0.8.x" }, "devDependencies": { + "@rollup/plugin-commonjs": "^25.0.5", + "@rollup/plugin-node-resolve": "^15.2.3", + "@rollup/plugin-terser": "^0.4.4", "airtap": "^1.0.0", "functions-have-names": "^1.2.1", "has": "^1.0.3", "has-symbols": "^1.0.1", "isarray": "^2.0.5", + "rollup": "^4.0.2", "tape": "^5.0.0" }, "scripts": { "test": "node tests/index.js", - "test:browsers": "airtap -- tests/index.js" + "test:browsers": "airtap -- tests/index.js", + "build:umd": "rollup -c rollup.config.mjs" }, "license": "MIT" } diff --git a/rollup.config.mjs b/rollup.config.mjs new file mode 100644 index 0000000..c83d0bb --- /dev/null +++ b/rollup.config.mjs @@ -0,0 +1,29 @@ +import commonjs from '@rollup/plugin-commonjs'; +import nodeResolve from '@rollup/plugin-node-resolve'; +import terser from '@rollup/plugin-terser'; + +/** + * @type {import('rollup').RollupOptions} + */ +const config = { + input: 'events.js', + plugins: [commonjs(), nodeResolve()], + output: [ + { + file: 'events.umd.js', + format: 'umd', + name: 'EventEmitter', + exports: 'default', + esModule: false + }, + { + file: 'events.umd.min.js', + format: 'umd', + name: 'EventEmitter', + exports: 'default', + plugins: [terser({ keep_fnames: true })], + esModule: false + } + ] +}; +export default config;