When porting Java code to ObjC, how best to represent checked exceptions?

Question

I am working on porting a Java codebase to Cocoa/Objective-C for use on desktop Mac OS X. The Java code has lots and lots of methods with checked exceptions li

Answer 1

You're correct that "out errors are generally the better solution for ObjC". Very rarely will you find an API in Cocoa that throws an exception (unless you haven't satisfied the preconditions for the API, but in that case, behavior is undefined by default).

If you expect this code to live beyond you and be adopted by other Cocoa developers, I would recommend using out errors. I work on code that was built by people unfamiliar with Cocoa and who used exceptions liberally, and they're a royal pain to work around.