コード例 #1
0
        internal static void AddEntriesFromIterable(ObjectInstance target, IteratorInstance iterable, object adder)
        {
            var callable = adder as ICallable;

            if (callable is null)
            {
                ExceptionHelper.ThrowTypeError(target.Engine.Realm, "adder must be callable");
            }

            var args = target.Engine._jsValueArrayPool.RentArray(2);

            var skipClose = true;

            try
            {
                do
                {
                    if (!iterable.TryIteratorStep(out var nextItem))
                    {
                        return;
                    }

                    var temp = nextItem.Get(CommonProperties.Value);

                    skipClose = false;
                    var oi = temp as ObjectInstance;
                    if (oi is null)
                    {
                        ExceptionHelper.ThrowTypeError(target.Engine.Realm, "iterator's value must be an object");
                    }

                    var k = oi.Get(JsString.NumberZeroString);
                    var v = oi.Get(JsString.NumberOneString);

                    args[0] = k;
                    args[1] = v;

                    callable.Call(target, args);
                } while (true);
            }
            catch
            {
                if (!skipClose)
                {
                    iterable.Close(CompletionType.Throw);
                }
                throw;
            }
            finally
            {
                target.Engine._jsValueArrayPool.ReturnArray(args);
            }
        }
コード例 #2
0
 protected void IteratorClose(CompletionType completionType)
 {
     _iterator.Close(completionType);
 }