What is a meta-class in Objective-C?

Please note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. In this post, I look at one of the stranger concepts in Objective-C — the meta-class. Every class in Objective-C has its own associated meta-class but since y

[craccho]

Objective-C も Ruby と同じようにクラスごとにメタクラスが存在し、動的なメソッド追加もできるらしい。けっこう奥が深い…。