On 26 October 2011 20:27, Allen Wirfs-Brock <[email protected]> wrote:
>
> 1) arguments is needed for backwards compatability (no migration tax)
> 2) it is useful with destructing parameters:
> function ({a,b,c}, [x,y]) {
> if (arguments.length < 2) ...
> ...
> var arg1obj = argruments[0];
> ...
All languages I know with pattern matching facilities provide a simple
solution for that. E.g. in ML:
fun (arg1 as {a,b,b}, arg2 as [x, y]) -> ...
We should really get rid of any need for using `arguments'. If your
example is a relevant use case then supporting something along these
lines in Harmony seems preferable, at least to me.
/Andreas
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