Confusion about constant class instance in Swift

Question

let myclassInstance1 = myclass()
let myclassInstance2 = myclassInstance1
myclassInstance1.prop1 = 2
myclassInstance2.prop1 = 3

This code is supposed to throw error as I am altering the constant.

But it's not happening.

How come?

Related: [Why constant constraints the property from a structure instance but not the class instance?](http://stackoverflow.com/questions/38010936/why-constant-constraints-the-property-from-a-structure-instance-but-not-the-clas) — Hamish, Nov 30 '16 at 11:40

score 4 · Accepted Answer · answered Nov 30 '16 at 11:16

4

The class instance is not constant. Just the reference is.

This means you cannot do this:

let myClassInstance = MyClass()
myClassInstance = MyClass()

answered Nov 30 '16 at 11:16

dasdom

1 Answers1