Add typings for cls-hooked (#20154)

* Add typings for cld-hooks

* Rename NameSpace to Namespace

types/cls-hooked/cls-hooked-tests.ts

@@ -0,0 +1,23 @@
+import * as http from 'http';
+import * as cls from 'cls-hooked';
+
+const session = cls.createNamespace('my session');
+const user = { id: 'foo' };
+session.set('user', user);
+session.run((value: number) => {
+    session.set('value', value);
+});
+http.createServer((req, res) => {
+    session.bindEmitter(req);
+    session.bindEmitter(res);
+});
+function bindLater(callback: (x: number) => number) {
+    return session.bind(callback, session.createContext());
+}
+
+bindLater((x: number) => {
+    return x;
+})(123);  // passing argument 'abc' should get compile error
+
+const session2 = cls.getNamespace('my session');
+session2.get('user');

types/cls-hooked/index.d.ts

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+// Type definitions for cls-hooked 4.2
+// Project: https://github.com/jeff-lewis/cls-hooked
+// Definitions by: Leo Liang <https://github.com/aleung>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node" />
+
+import { EventEmitter } from 'events';
+
+export interface Namespace {
+    active: any;
+
+    set<T>(key: string, value: T): T;
+    get(key: string): any;
+    run(fn: (...args: any[]) => void): void;
+    runAndReturn<T>(fn: (...args: any[]) => T): T;
+    bind<F extends Function>(fn: F, context?: any): F; // tslint:disable-line: ban-types
+    bindEmitter(emitter: EventEmitter): void;
+    createContext(): any;
+}
+
+export function createNamespace(name: string): Namespace;
+export function getNamespace(name: string): Namespace;
+export function destroyNamespace(name: string): void;
+export function reset(): void;

types/cls-hooked/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "cls-hooked-tests.ts"
+    ]
+}

types/cls-hooked/tslint.json

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