package node.stream; @:jsRequire("stream", "Stream") extern class Stream extends node.Stream { function new(?opts:ReadableOptions); /** Alias for `emitter.on(eventName, listener)`. **/ function addListener(eventName:ts.AnyOf2, listener:(args:haxe.extern.Rest) -> Void):Stream; /** Adds the `listener` function to the end of the listeners array for the event named `eventName`. No checks are made to see if the `listener` has already been added. Multiple calls passing the same combination of `eventName`and `listener` will result in the `listener` being added, and called, multiple times. ```js server.on('connection', (stream) => { console.log('someone connected!'); }); ``` Returns a reference to the `EventEmitter`, so that calls can be chained. By default, event listeners are invoked in the order they are added. The`emitter.prependListener()` method can be used as an alternative to add the event listener to the beginning of the listeners array. ```js import { EventEmitter } from 'node:events'; const myEE = new EventEmitter(); myEE.on('foo', () => console.log('a')); myEE.prependListener('foo', () => console.log('b')); myEE.emit('foo'); // Prints: // b // a ``` **/ function on(eventName:ts.AnyOf2, listener:(args:haxe.extern.Rest) -> Void):Stream; /** Adds a **one-time**`listener` function for the event named `eventName`. The next time `eventName` is triggered, this listener is removed and then invoked. ```js server.once('connection', (stream) => { console.log('Ah, we have our first user!'); }); ``` Returns a reference to the `EventEmitter`, so that calls can be chained. By default, event listeners are invoked in the order they are added. The`emitter.prependOnceListener()` method can be used as an alternative to add the event listener to the beginning of the listeners array. ```js import { EventEmitter } from 'node:events'; const myEE = new EventEmitter(); myEE.once('foo', () => console.log('a')); myEE.prependOnceListener('foo', () => console.log('b')); myEE.emit('foo'); // Prints: // b // a ``` **/ function once(eventName:ts.AnyOf2, listener:(args:haxe.extern.Rest) -> Void):Stream; /** Removes the specified `listener` from the listener array for the event named`eventName`. ```js const callback = (stream) => { console.log('someone connected!'); }; server.on('connection', callback); // ... server.removeListener('connection', callback); ``` `removeListener()` will remove, at most, one instance of a listener from the listener array. If any single listener has been added multiple times to the listener array for the specified `eventName`, then `removeListener()` must be called multiple times to remove each instance. Once an event is emitted, all listeners attached to it at the time of emitting are called in order. This implies that any`removeListener()` or `removeAllListeners()` calls _after_ emitting and _before_ the last listener finishes execution will not remove them from`emit()` in progress. Subsequent events behave as expected. ```js import { EventEmitter } from 'node:events'; class MyEmitter extends EventEmitter {} const myEmitter = new MyEmitter(); const callbackA = () => { console.log('A'); myEmitter.removeListener('event', callbackB); }; const callbackB = () => { console.log('B'); }; myEmitter.on('event', callbackA); myEmitter.on('event', callbackB); // callbackA removes listener callbackB but it will still be called. // Internal listener array at time of emit [callbackA, callbackB] myEmitter.emit('event'); // Prints: // A // B // callbackB is now removed. // Internal listener array [callbackA] myEmitter.emit('event'); // Prints: // A ``` Because listeners are managed using an internal array, calling this will change the position indices of any listener registered _after_ the listener being removed. This will not impact the order in which listeners are called, but it means that any copies of the listener array as returned by the `emitter.listeners()` method will need to be recreated. When a single function has been added as a handler multiple times for a single event (as in the example below), `removeListener()` will remove the most recently added instance. In the example the `once('ping')`listener is removed: ```js import { EventEmitter } from 'node:events'; const ee = new EventEmitter(); function pong() { console.log('pong'); } ee.on('ping', pong); ee.once('ping', pong); ee.removeListener('ping', pong); ee.emit('ping'); ee.emit('ping'); ``` Returns a reference to the `EventEmitter`, so that calls can be chained. **/ function removeListener(eventName:ts.AnyOf2, listener:(args:haxe.extern.Rest) -> Void):Stream; /** Alias for `emitter.removeListener()`. **/ function off(eventName:ts.AnyOf2, listener:(args:haxe.extern.Rest) -> Void):Stream; /** Removes all listeners, or those of the specified `eventName`. It is bad practice to remove listeners added elsewhere in the code, particularly when the `EventEmitter` instance was created by some other component or module (e.g. sockets or file streams). Returns a reference to the `EventEmitter`, so that calls can be chained. **/ function removeAllListeners(?event:ts.AnyOf2):Stream; /** By default `EventEmitter`s will print a warning if more than `10` listeners are added for a particular event. This is a useful default that helps finding memory leaks. The `emitter.setMaxListeners()` method allows the limit to be modified for this specific `EventEmitter` instance. The value can be set to`Infinity` (or `0`) to indicate an unlimited number of listeners. Returns a reference to the `EventEmitter`, so that calls can be chained. **/ function setMaxListeners(n:Float):Stream; /** Adds the `listener` function to the _beginning_ of the listeners array for the event named `eventName`. No checks are made to see if the `listener` has already been added. Multiple calls passing the same combination of `eventName`and `listener` will result in the `listener` being added, and called, multiple times. ```js server.prependListener('connection', (stream) => { console.log('someone connected!'); }); ``` Returns a reference to the `EventEmitter`, so that calls can be chained. **/ function prependListener(eventName:ts.AnyOf2, listener:(args:haxe.extern.Rest) -> Void):Stream; /** Adds a **one-time**`listener` function for the event named `eventName` to the _beginning_ of the listeners array. The next time `eventName` is triggered, this listener is removed, and then invoked. ```js server.prependOnceListener('connection', (stream) => { console.log('Ah, we have our first user!'); }); ``` Returns a reference to the `EventEmitter`, so that calls can be chained. **/ function prependOnceListener(eventName:ts.AnyOf2, listener:(args:haxe.extern.Rest) -> Void):Stream; static var prototype : Stream; }