/* * Copyright (c) 2018 Apple Inc. All Rights Reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #import <Foundation/Foundation.h> NS_ASSUME_NONNULL_BEGIN @interface NSError (UsefulConstructors) // Every error should have a description + (instancetype)errorWithDomain:(NSErrorDomain)domain code:(NSInteger)code description:(NSString*)description; // Sometimes you also want to have an underlying error (which might be null) + (instancetype)errorWithDomain:(NSErrorDomain)domain code:(NSInteger)code description:(NSString*)description underlying:(NSError* _Nullable)underlying; @end NS_ASSUME_NONNULL_END