Merge pull request #21770 from yasupeke/add_events

Added types for events

types/events/events-tests.ts

@@ -0,0 +1,60 @@
+import { EventEmitter } from 'events';
+
+const emitter = new EventEmitter();
+const listener = () => {
+  console.log('once');
+};
+const listener1 = () => {
+  console.log('listener1');
+};
+const listener2 = () => {
+  console.log('listener2');
+};
+const listener3 = (arg1: string) => {
+  console.log('listener3', arg1);
+};
+const listener4 = () => {
+  console.log('type of number');
+};
+
+emitter.setMaxListeners(100);
+
+emitter.addListener('send', listener1);
+
+emitter.on('send', listener2);
+
+emitter.on('send', listener3);
+
+emitter.once('send', listener);
+
+emitter.once(1, listener4);
+
+emitter.listeners('send');
+emitter.listenerCount('send');
+
+EventEmitter.defaultMaxListeners = 100;
+console.log(`count(static): ${EventEmitter.listenerCount(emitter, 'send')}`);
+console.log(`ncount: ${emitter.listenerCount('send')}`);
+
+setTimeout(() => {
+  console.log('\n');
+  emitter.emit('send');
+}, 1000);
+
+setTimeout(() => {
+  console.log('\n');
+  emitter.emit('send');
+  emitter.removeListener('send', listener2);
+}, 2000);
+
+setTimeout(() => {
+  console.log('\n');
+  emitter.emit('send', 'params1');
+  emitter.removeAllListeners('send');
+}, 3000);
+
+setTimeout(() => {
+  console.log('\n');
+  emitter.emit(1);
+  emitter.emit('send');
+}, 3000);

types/events/index.d.ts

@@ -0,0 +1,21 @@
+// Type definitions for events 1.1
+// Project: https://github.com/Gozala/events
+// Definitions by: Yasunori Ohoka <https://github.com/yasupeke>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export type Listener = (...args: any[]) => void;
+
+export class EventEmitter {
+  static listenerCount(emitter: EventEmitter, type: string | number): number;
+  static defaultMaxListeners: number;
+
+  setMaxListeners(n: number): this;
+  emit(type: string | number, ...args: any[]): boolean;
+  addListener(type: string | number, listener: Listener): this;
+  on(type: string | number, listener: Listener): this;
+  once(type: string | number, listener: Listener): this;
+  removeListener(type: string | number, listener: Listener): this;
+  removeAllListeners(type: string | number): this;
+  listeners(type: string | number): Listener[];
+  listenerCount(type: string | number): number;
+}

types/events/tsconfig.json

@@ -0,0 +1,25 @@
+{
+    "compilerOptions": {
+      "module": "commonjs",
+      "target": "es6",
+      "lib": [
+        "es6",
+        "dom"
+      ],
+      "noImplicitAny": true,
+      "noImplicitThis": true,
+      "strictNullChecks": true,
+      "strictFunctionTypes": true,
+      "baseUrl": "../",
+      "typeRoots": [
+        "../"
+      ],
+      "types": [],
+      "noEmit": true,
+      "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+      "index.d.ts",
+      "events-tests.ts"
+    ]
+}

types/events/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }