Can we fix this?

[jfondren]

On Thursday, 30 September 2021 at 02:03:39 UTC, Basile B. wrote:
> On Thursday, 30 September 2021 at 00:59:26 UTC, deadalnix wrote:
>> [...]
>> Now, this is expected isn't it? There is one and only one i 
>> variable. But let's change things a bit.
>>
>> ```d
>> int i = 1;
>> while (i < 4) {
>>    int n = i + 2;
>>    dgList ~= { writeln(n); }; // still outputs 5 5 5
>> }
>> ```
>>
>> Now this is wrong.
>
> Why is this wrong ? Do you expect one alloca per iteration for 
> n ?

No, what I expect is for the closure to close over the n, and to 
do whatever it needs to do for that to work. In basically every 
language that exists the expected behavior from this code is 3 4 
5. Doing it otherwise is like PHP getting the ternary operator 
backwards -- it's not different because it's innovating, it's 
different because it's wrong.