Rembrandt Q. Einstein Rembrandt Q. Einstein - 5 months ago 16
Swift Question

Why is Bool "AnyObject" instead of "Any"?

I have a simple question: Why does

Bool
qualify as
AnyObject

According to Apple's documentation:



So why does this statement pass?

let bool = true
let explicitBool: Bool = true

if (bool is AnyObject){
print("I'm an object")
}

if (explicitBool is AnyObject){
print("I'm still an object!")
}



Answer

Because it's being bridged to an NSNumber instance.

Swift automatically bridges certain native number types, such as Int and Float, to NSNumber. - Using Swift with Cocoa and Objective-C (Swift 2.2) - Numbers

Try this:

let test = bool as AnyObject
print(String(test.dynamicType))
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