RfC for language feature: rvalue struct

[Dukc]

On Tuesday, 31 January 2023 at 07:31:58 UTC, FeepingCreature 
wrote:
> On Monday, 30 January 2023 at 20:15:48 UTC, Dukc wrote:
>> I don't see a need for fields to be non-referenceable since 
>> immutability protects them if the data in question is already 
>> committed.
>
> Yes, again, the idea is that rvalue allows *overwriting mutable 
> variables* of this type.

In that case I'd probably go with a mutable pointer to an 
immutable struct. That way you can replace the value in whole, 
but not single fields of it.