Expression switch - an alternate proposal

[Ali Ebrahimi]

Hi,

On Fri, Apr 13, 2018 at 12:05 PM, <forax at univ-mlv.fr> wrote:

> I think it's better to first introduce the expression switch with the
> break syntax and then go to the shorthand syntax than do the opposite.
> ...
>
> var topping = switch (food) {
>   case BURGER: KETCHUP;
>   case SAUSAGE, ASPARAGUS: MUSTARD;
>   case ICE_CREAM: FUDGE;
>   case BAKED_POTATO:
>     Toppings t = new Toppings();
>     t.add(BACON);
>     t.add(SOUR_CREAM);
>     t.add(CHEESE);
>     t.add(BACON);  // not a typo
>     break t;
>   default: NOTHING;
> };
>
> (in my current mental world the shorthand syntax use ':' and not '->')
>
I prefer ':= '

var topping = switch (food) {
  case BURGER:= KETCHUP;
  case SAUSAGE, ASPARAGUS:= MUSTARD;
  case ICE_CREAM:= FUDGE;
  case BAKED_POTATO:
    Toppings t = new Toppings();
    t.add(BACON);
    t.add(SOUR_CREAM);
    t.add(CHEESE);
    t.add(BACON);  // not a typo
    break t;
  default:= NOTHING;
};


-- 

Best Regards,
Ali Ebrahimi