Merge pull request #21900 from kjin/shimmer

[shimmer] Add shimmer type definitions

types/shimmer/index.d.ts

@@ -0,0 +1,35 @@
+// Type definitions for Shimmer 1.x
+// Project: https://github.com/othiym23/shimmer
+// Definitions by: Kelvin Jin <https://github.com/kjin>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.4
+
+declare global {
+    interface Function {
+        __wrapped?: boolean;
+    }
+}
+
+declare const shimmer: {
+    (options: { logger?(msg: string): void }): void;
+    wrap<T extends (...args: any[]) => any>(
+        nodule: object,
+        name: string,
+        wrapper: (original: T) => T
+    ): void;
+    massWrap<T extends (...args: any[]) => any>(
+        nodules: object[],
+        names: string[],
+        wrapper: (original: T) => T
+    ): void;
+    unwrap(
+        nodule: object,
+        name: string
+    ): void;
+    massUnwrap(
+        nodules: object[],
+        names: string[]
+    ): void;
+};
+
+export = shimmer;

types/shimmer/shimmer-tests.ts

@@ -0,0 +1,23 @@
+import * as shimmer from 'shimmer';
+
+const isWrapped: boolean = [].forEach.__wrapped || false;
+
+shimmer.wrap(Array.prototype, 'forEach', (forEach) => {
+    return (...args: any[]) => {
+      forEach(...args);
+    };
+});
+
+shimmer.unwrap(Array.prototype, 'forEach');
+
+shimmer.massWrap([Map.prototype, Set.prototype], ['clear', 'forEach'], (fn) => {
+    return (...args: any[]) => {
+      const result = fn(...args);
+      if (result) {
+        throw new Error();
+      }
+      return result;
+    };
+});
+
+shimmer.massUnwrap([Map.prototype, Set.prototype], ['clear', 'forEach']);

types/shimmer/tsconfig.json

@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "shimmer-tests.ts"
+    ]
+}

types/shimmer/tslint.json

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