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bjhomer/files.swift

Last active August 29, 2015 14:20
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Magical initializer delegation
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files.swift
class Top {
let x: Int
init() { x = 3; println("Top.init") }
}
class Bottom: Top {
var z: String
// This doesn't call `super.init`, but Top.init still runs. Why?
init(dummy: Bool) { z = "hi" }
}
let b = Bottom(dummy: true)
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bjhomer commented May 8, 2015

It seems that if a superclass has only one designated initializer, and it takes no parameters, then super.init is implicitly called.

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