ExampleB

exampleB.swift

class Object: NSObject {

    let name:String
    
    init(name:String) {
        self.name = name
    }

}

func ==(lhs: Object, rhs:Object) -> Bool {
    return lhs.name == rhs.name
}

func ==(lhs: Object?, rhs:Object?) -> Bool {
    
    guard let l = lhs, let r = rhs else {
        return lhs === rhs
    }
    return l == r
}

func doSomethingWhenTheStringMatches() {
    print("Match")
}

var a:Object?

var b:Object?

if a == b {
    doSomethingWhenTheStringMatches()
}