From f1b267cc9fe7f6e5566dc2535b064b92aef92df1 Mon Sep 17 00:00:00 2001 From: Leonid Logvinov Date: Wed, 6 Dec 2017 20:55:09 +0300 Subject: Refactor web3Wrapper to a separate package --- packages/0x.js/src/utils/promisify.ts | 24 ------------------------ 1 file changed, 24 deletions(-) delete mode 100644 packages/0x.js/src/utils/promisify.ts (limited to 'packages/0x.js/src/utils/promisify.ts') diff --git a/packages/0x.js/src/utils/promisify.ts b/packages/0x.js/src/utils/promisify.ts deleted file mode 100644 index c114cf32f..000000000 --- a/packages/0x.js/src/utils/promisify.ts +++ /dev/null @@ -1,24 +0,0 @@ -import * as _ from 'lodash'; - -/** - * Transforms callback-based function -- func(arg1, arg2 .. argN, callback) -- into an ES6-compatible Promise. - * Promisify provides a default callback of the form (error, result) and rejects when `error` is not null. You can also - * supply thisArg object as the second argument which will be passed to `apply`. - */ -export function promisify( - originalFn: ( - ...args: any[], - // HACK: This can't be properly typed without variadic kinds https://github.com/Microsoft/TypeScript/issues/5453 - ) => void, - thisArg?: any, -): (...callArgs: any[]) => Promise { - const promisifiedFunction = async (...callArgs: any[]): Promise => { - return new Promise((resolve, reject) => { - const callback = (err: Error|null, data?: T) => { - _.isNull(err) ? resolve(data) : reject(err); - }; - originalFn.apply(thisArg, [...callArgs, callback]); - }); - }; - return promisifiedFunction; -} -- cgit v1.2.3