Just a straw-spec device, not proposed for ES6 or 7.

/be

Andy Wingo wrote:
Hi again,

On Mon 29 Apr 2013 17:37, Andy Wingo<[email protected]>  writes:

   let (g = EXPR) {
     let received = void 0, send = true;
     while (true) {
       let next = send ? g.send(received) : g.throw(received);
       if (next.done)
         break;
       try {
         received = yield next.value;  // ***
         send = true;
       } catch (e) {
         received = e;
         send = false;
       }
     }
     next.value;
   }

Beyond the scoping error of "next", this desugaring uses let
expressions, which AFAICS are not in the spec and have not been
discussed in a few years.  Are they actually still a thing?

Andy
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