Re: [OT] Swiftly return multiple values

[Dirk Laurie <dirk.laurie@...>]

2014-06-05 9:18 GMT+02:00 Coroutines <coroutines@gmail.com>:
> On Thu, Jun 5, 2014 at 12:07 AM, steve donovan
> <steve.j.donovan@gmail.com> wrote:
>
>> sort(cities) do (x,y: string) -> int:
>>   cmp(x.len, y.len)
>
> On a related note, sometimes I wish Lua allowed putting an operator in
> place of where a function would be expected.  Something like:
> table.sort(some_table, <)
>
> I don't know how that could be made less confusing from the parsers'
> perspective, though.  I think you can do this in Haskell with \+ to
> refer to the function of the operator itself.

    table.sort(some_table, __lt)

would be immediately understandable though not pretty. I would
probably want to hide such functions from next(_ENV), though.

   setmetatable(_ENV,{__index = {__lt = ...}})