OT: Tuple Syntax and Placeholders (Re: First Draft: Tuple Unpacking Syntax)

[Nick Treleaven]

On Friday, 1 August 2025 at 10:08:09 UTC, Nick Treleaven wrote:
> On Sunday, 27 July 2025 at 21:52:15 UTC, Richard (Rikki) Andrew 
> Cattermole wrote:
>> 2. Moving elements should be in DIP even if implementation 
>> doesn't support it. I don't think anything special needs to be 
>> done here. My understanding is the compiler should be seeing 
>> the VarDeclaration -> VarDeclaration assignment and handle it 
>> normally.
>
> I think you are asking for something special:
>
> ```d
>     T a, b;
>     alias seq = AliasSeq!(a, b);
>     // auto (x, y) = a;
>     auto x = a[0];
>     auto y = a[1];
> ```

Sorry, wrong code above.
```d
     T a, b;
     alias seq = AliasSeq!(a, b);
     // auto (x, y) = seq;
     auto x = seq[0];
     auto y = seq[1];
```

> `a[0]` and `a[1]` are not moved by the lowered code.
>
> Do you have an example where there should be a move?