Cocoa’s mutable-subclass pattern is an antipattern
We know we can’t mutate a mutable array while enumerating, and yes, we have to take care to avoid that. But wait a second—why is that *our* problem, as users of Apple’s Foundation framework?
Topic:
Objective-C
Subjective-C: I use property (dot) syntax liberally
I have long argued that methods which look, walk, and talk like getter methods should be called with dot syntax.
Tiny Swift idioms in ObjC
C macro implementations of Swift’s casting and if-let binding operators.
Benefits of Cocoa: Still here in Swift
Until now we all agreed these were benefits of Cocoa:
* C compatibility
* Dynamic dispatch
* Nil safety
* Duck typing
Now they're all bad?
— Nick Lockwood (@nicklockwood) August 6, 2014
Sigh.
Okay, let’s take this one item at a time:
C compatibility
Still there.
Nil safety
Was never there …
Quick followup on singletons
Part of the Singletons series.
This is a quick followup to my post about singletons in Cocoa apps. Read it first for context.
Another developer asked me a few questions about the points I made in my previous post on singletons. I’d like to post my (lightly edited) comments …
Singletons in Cocoa applications
Part of the Singletons series.
The Singleton pattern is a powerful tool in every programmer’s toolbox. But singletons today are widely overused in most codebases.
The consequences of misusing such a powerful tool are too far-reaching and long-lived to take lightly. And overuse or misuse of this tool leads …
Objective-C
Context: Soroush Khanlou, via Jason Brennan. And I’m drafting a less-snarky response now.
I was reading an article on Objective-C, and I still don’t quite get it.
Lifting a simple example from the post, are we really down to say that
{% highlight objc %}
import <Foundation/Foundation.h& …