Destructured Tuple Assignment

[via Digitalmars-d-learn]

On Friday, 15 May 2015 at 10:23:24 UTC, Per Nordlöw wrote:
> I recall having seen an example of using some D magic (via 
> mixin perhaps?) to realize tuple destructuring in assignments 
> like
>
>     magic(first, _, second) = expression.findSplit(separator);

I found it:

http://forum.dlang.org/thread/ubrngkdmyduepmfkhefp@forum.dlang.org?page=1

I'm however still as frustrated because instead of having to 
specify tuple indexes explicitly as

      const result = expression.findSplit(separator);
      const first = result[0];
      const second = result[2];

I instead have to write types explicitly (no type-inference)

      string first, _, second; // non-generic unstable type guess
      tie(first, _, second) = expression.findSplit(separator);

or just as bad

      typeof(expression.findSplit(separator)[0]) first, _, second;
      tie(first, _, second) = expression.findSplit(separator);

Can this be solved with a mixin somehow?