How to check two instances are the same class/type in swift

Question

I know that I can check the type of a var in Swift with is

if item is Movie {     movieCount += 1 } else if item is Song {     songCount += 1 } 

but how can I check that two instances have the same class? The following does not work:

if item1 is item2.dynamicType {     print("Same subclass") } else {     print("Different subclass) } 

I could easily add a "class" function and update it in each subclass to return something unique, but that seems like a kludge...

Answer 1

I also answered How do you find out the type of an object (in Swift)? to point out that at some point Apple added support for the === operator to Swift Types, so the following will now work:

if item1.dynamicType === item2.dynamicType {     print("Same subclass") } else {     print("Different subclass") } 

This works even without importing Foundation, but note it will only work for classes, as structs have no dynamic type.