This needs to be fixed

[ryuukk_]

On Saturday, 24 August 2024 at 17:56:21 UTC, monkyyy wrote:
> On Saturday, 24 August 2024 at 16:36:17 UTC, Manu wrote:
>> alias x = s.tupleof; // this works
>> alias y = s.tupleof[0]; // this is a compile error?!
>>
>> How can embarrassing edge cases like this still exist in the 
>> language today? I'm just reacquainting myself with all the 
>> reasons that I've had such a hard time trying to convince my 
>> colleagues to take D seriously for such a long time.
>>
>> 😫
>
> ```d
> auto tuple(T...)(T args){
> 	struct Tuple{
> 		enum istuple=true;
> 		T me; alias me this;
> 	}
> 	return Tuple(args);
> }
> unittest{
> 	auto foo=tuple(1,"hi");
> 	assert(foo[0]==1);
> 	assert(foo[1]=="hi");
> 	auto bar=tuple();
> }
> auto totuple(T)(T a) if(is(typeof(a.istuple)))=>a;
> auto totuple(T)(T a) if( ! is(typeof(a.istuple)))=>tuple(a);
> auto maybetuple(T...)(T a){
> 	static if(T.length==1){
> 		return a[0];
> 	} else {
> 		return tuple(a);
> }}
> ```
>
> Could be fixed with a better std.meta

D needs native tuple, not this mess