This is bug or not? (immutable class containing struct with dtor)

[Tejas]

On Friday, 17 December 2021 at 18:01:03 UTC, Tejas wrote:
> On Friday, 17 December 2021 at 17:34:05 UTC, Denis Feklushkin 
> wrote:
>> On Friday, 17 December 2021 at 17:27:53 UTC, Denis Feklushkin 
>> wrote:
>>
>>>     [...]
>>
>> ("serializer_bug" is just name of my local .d file)
>
> I think since `immutable` objects are kept in Read Only 
> Storage, you can't call destructors on them since the objects 
> don't get erased when `~this` is called, but rather they get 
> assigned their `.init` value, which tells the GC that they can 
> be collected.
>
> `immutable class` has nothing to do with it, even the following 
> fails to compile:
> ```d
>
>
>
> struct S
> {
>     ~this() immutable {}
> }
>
> void main()
> {
>     S s = S();
> }
>
> Error: `immutable` method `onlineapp.S.~this` is not callable 
> using a mutable object
> ```

Correction:
`immutable S s = S();` inside the `void main()`