Tuple fields/types

[Meta via Digitalmars-d-learn]

On Thursday, 30 June 2016 at 21:53:42 UTC, Jordan Wilson wrote:
> Hello,
>
> For tuples, does the fieldNames property have a 1-1 
> correspondence with the Types property?
>
> It appears that way in my testing:
>
> alias MyData = Tuple!(string,"a",int,"b");
> foreach (i, type; MyData.Types){
>     writeln (MyData.fieldNames[i]," ",type.stringof);
>     // a string
>     // b int
> }
>
> But I can't figure out for sure from the documentation:
>
> alias fieldNames = staticMap!(extractName, fieldSpecs);
> alias Types = staticMap!(extractType, fieldSpecs);
>
> Thanks,
>
> Jordan

It's an implementation detail but I wouldn't expect the order to 
ever change.