opIndexUnary post in-/decrement how to ?

[wjoe]

On Thursday, 15 July 2021 at 15:39:59 UTC, Tejas wrote:
> On Thursday, 15 July 2021 at 13:28:19 UTC, wjoe wrote:
>> On Thursday, 15 July 2021 at 12:09:20 UTC, Tejas wrote:
>>> [...]
>>
>> The only way, for me, to explain the error message ```opIndex 
>> isn't an lvalue and can't be modified.``` for ```i[1]++``` is 
>> that the compiler rewrites to
>> ```D
>> (auto e = i.opIndex(1), i.opIndex(1).opUnary!"++"()/*1) note: 
>> not opIndexUnary*/, return e;)
>> ```
>> If it were using ```opIndexUnary``` at 1) it would work.
>>
>> [...]
>
> Sucks :(
>
> I really can't spend more time on this, hope things work out 
> for you somehow.
> Best of luck
>
> Regards
> Tejas

No worries. Your time is very much appreciated.