From 0518ce2cc41eebafce6631c5cc0e413ddf85de1b Mon Sep 17 00:00:00 2001
From: "Angus.Fenying" <i.am.x.fenying@gmail.com>
Date: Tue, 12 Dec 2017 12:01:28 +0800
Subject: [PATCH] Patch for fixing issue #15849.

---
 types/async/index.d.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/types/async/index.d.ts b/types/async/index.d.ts
index f1b38e8130..604e2c0525 100644
--- a/types/async/index.d.ts
+++ b/types/async/index.d.ts
@@ -11,7 +11,7 @@ export interface Dictionary<T> { [key: string]: T; }
 export interface ErrorCallback<T> { (err?: T): void; }
 export interface AsyncBooleanResultCallback<E> { (err?: E, truthValue?: boolean): void; }
 export interface AsyncResultCallback<T, E> { (err?: E, result?: T): void; }
-export interface AsyncResultArrayCallback<T, E> { (err?: E, results?: (T | undefined)[]): void; }
+export interface AsyncResultArrayCallback<T, E> { (err?: E, results?: Array<T | undefined>): void; }
 export interface AsyncResultObjectCallback<T, E> { (err: E | undefined, results: Dictionary<T | undefined>): void; }
 
 export interface AsyncFunction<T, E> { (callback: (err?: E, result?: T) => void): void; }
@@ -116,8 +116,12 @@ export const eachOfLimit: typeof forEachOfLimit;
 export function map<T, R, E>(arr: T[] | IterableIterator<T>, iterator: AsyncResultIterator<T, R, E>, callback?: AsyncResultArrayCallback<R, E>): void;
 export function map<T, R, E>(arr: Dictionary<T>, iterator: AsyncResultIterator<T, R, E>, callback?: AsyncResultArrayCallback<R, E>): void;
 export const mapSeries: typeof map;
-export function mapLimit<T, R, E>(arr: T[] | IterableIterator<T>, limit: number, iterator: AsyncResultIterator<T, R, E>, callback?: AsyncResultArrayCallback<R, E>): void;
-export function mapLimit<T, R, E>(arr: Dictionary<T>, limit: number, iterator: AsyncResultIterator<T, R, E>, callback?: AsyncResultArrayCallback<R, E>): void;
+export function mapLimit<T, R, E>(
+    arr: T[] | Dictionary<T> | IterableIterator<T>,
+    limit: number,
+    iterator: AsyncResultIterator<T, R, E>,
+    callback?: AsyncResultArrayCallback<R, E>
+): void;
 export function mapValuesLimit<T, R, E>(obj: Dictionary<T>, limit: number, iteratee: (value: T, key: string, callback: AsyncResultCallback<R, E>) => void, callback: AsyncResultObjectCallback<R, E>): void;
 export function mapValues<T, R, E>(obj: Dictionary<T>, iteratee: (value: T, key: string, callback: AsyncResultCallback<R, E>) => void, callback: AsyncResultObjectCallback<R, E>): void;
 export const mapValuesSeries: typeof mapValues;
@@ -222,7 +226,7 @@ export function memoize(fn: Function, hasher?: Function): Function;
 export function unmemoize(fn: Function): Function;
 export function ensureAsync(fn: (... argsAndCallback: any[]) => void): Function;
 export function constant(...values: any[]): Function;
-export function asyncify(fn: Function): Function;
+export function asyncify(fn: Function): (...args: any[]) => any;
 export function wrapSync(fn: Function): Function;
 export function log(fn: Function, ...args: any[]): void;
 export function dir(fn: Function, ...args: any[]): void;