やっぱり、他の数値型と違って、Boolをas NSNumberしたときだけは、同値は同一のclassインスタンスになるようだ #CodePiece

CodePiece.swift

let num = 1 as NSNumber

num === num
//true

(num as Int as NSNumber) === (num as Int as NSNumber)
//false

(num as UInt as NSNumber) === (num as UInt as NSNumber)
//false

(num as Double as NSNumber) === (num as Double as NSNumber)
//false

(num as Bool as NSNumber) === (num as Bool as NSNumber)
//true