If I have an inline (now `value`) class, can I mark it as `@Immutable`? Will this property transfer ...

# compose

[dimsuz]

If I have an inline (now value) class, can I mark it as @Immutable? Will this property transfer to the wrapped class and be understood accordingly by the Compose runtime later on?

[jim]

I could be mistaken, but I think we already/automatically treat value classes as immutable. Maybe only if the underlying value type is immutable though.

While it is strongly desirable for `@Immutable`objects to only reference other `@Immutable`classes, there is no such restriction currently enforced, so the property will not be applied transitively.

[dimsuz]

yeah, I mean that if I know that my collection will be treated as immutable here, could I go from this

@Immutable
data class UserList(val users: Map<UserId, User>)

to this

@Immutable
value class UserList(val users: Map<UserId, User>)

?

(or substitute Map for any effectively immutable custom data class which I know won't be mutated, only copy-ed)