File: avoid-nserror-init.rst

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.. title:: clang-tidy - objc-avoid-nserror-init

objc-avoid-nserror-init
=======================

Finds improper initialization of ``NSError`` objects.

According to Apple developer document, we should always use factory method
``errorWithDomain:code:userInfo:`` to create new NSError objects instead
of ``[NSError alloc] init]``. Otherwise it will lead to a warning message
during runtime.

The corresponding information about ``NSError`` creation: https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ErrorHandlingCocoa/CreateCustomizeNSError/CreateCustomizeNSError.html