Graham St Jack wrote:
Is there any plan to introduce some way of having a mutable reference to an immutable class object on the heap? Do others see this as a problem at all?
For embedded microsystems (i.e. with ROM/RAM) this is a problem. It is a common use case to have a mutable reference (in RAM) to some objects that reside in ROM. Obviously anything in ROM is guaranteed by hardware to be immutable. So, yes, this is a problem in a wider sense.