I dun a DIP, possibly the best DIP ever

[Stefan Koch]

On Friday, 24 April 2020 at 08:35:53 UTC, Walter Bright wrote:
> On 4/24/2020 1:24 AM, Walter Bright wrote:
>> On 4/23/2020 11:00 PM, Manu wrote:
>>> [...]
>> 
>> Fair enough. Though there needs to be a rationale as to why 
>> those two particuler cases are needed and critical.
>
> Please keep in mind that the following works today:
>
>   void foo(int);
>
>   template tuple(T...) { enum tuple = T; }
>
>   void test() {
>     auto t = tuple!(1, 2, 3);
>     static foreach (i, e; t)
>         foo(e + i);
>   }
>
> and generates:
>
>   void test() {
>      foo(1); foo(3); foo(5);
>   }

Because of implementation issues in static foreach that'll take 
forever.
Note: those issues are actually impossible to slove in the 
general case.