| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496 | // Licensed to the .NET Foundation under one or more agreements.// The .NET Foundation licenses this file to you under the MIT License.// See the LICENSE file in the project root for more information. using System.Threading.Tasks;namespace System.Reactive.Linq{    partial class AsyncObservable    {        public static IAsyncObservable<Double> Average(this IAsyncObservable<Int32> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageInt32(observer)));        }        public static IAsyncObservable<Double> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Int32> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageInt32(observer, selector)));        }        public static IAsyncObservable<Double> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Int32>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageInt32(observer, selector)));        }        public static IAsyncObservable<Double?> Average(this IAsyncObservable<Int32?> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableInt32(observer)));        }        public static IAsyncObservable<Double?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Int32?> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableInt32(observer, selector)));        }        public static IAsyncObservable<Double?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Int32?>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableInt32(observer, selector)));        }        public static IAsyncObservable<Double> Average(this IAsyncObservable<Int64> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageInt64(observer)));        }        public static IAsyncObservable<Double> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Int64> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageInt64(observer, selector)));        }        public static IAsyncObservable<Double> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Int64>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageInt64(observer, selector)));        }        public static IAsyncObservable<Double?> Average(this IAsyncObservable<Int64?> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableInt64(observer)));        }        public static IAsyncObservable<Double?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Int64?> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableInt64(observer, selector)));        }        public static IAsyncObservable<Double?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Int64?>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableInt64(observer, selector)));        }        public static IAsyncObservable<Single> Average(this IAsyncObservable<Single> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Single>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageSingle(observer)));        }        public static IAsyncObservable<Single> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Single> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Single>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageSingle(observer, selector)));        }        public static IAsyncObservable<Single> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Single>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Single>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageSingle(observer, selector)));        }        public static IAsyncObservable<Single?> Average(this IAsyncObservable<Single?> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Single?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableSingle(observer)));        }        public static IAsyncObservable<Single?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Single?> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Single?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableSingle(observer, selector)));        }        public static IAsyncObservable<Single?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Single?>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Single?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableSingle(observer, selector)));        }        public static IAsyncObservable<Double> Average(this IAsyncObservable<Double> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDouble(observer)));        }        public static IAsyncObservable<Double> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Double> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDouble(observer, selector)));        }        public static IAsyncObservable<Double> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Double>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDouble(observer, selector)));        }        public static IAsyncObservable<Double?> Average(this IAsyncObservable<Double?> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableDouble(observer)));        }        public static IAsyncObservable<Double?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Double?> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableDouble(observer, selector)));        }        public static IAsyncObservable<Double?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Double?>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Double?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableDouble(observer, selector)));        }        public static IAsyncObservable<Decimal> Average(this IAsyncObservable<Decimal> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Decimal>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDecimal(observer)));        }        public static IAsyncObservable<Decimal> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Decimal> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Decimal>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDecimal(observer, selector)));        }        public static IAsyncObservable<Decimal> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Decimal>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Decimal>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageDecimal(observer, selector)));        }        public static IAsyncObservable<Decimal?> Average(this IAsyncObservable<Decimal?> source)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            return Create<Decimal?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableDecimal(observer)));        }        public static IAsyncObservable<Decimal?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, Decimal?> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Decimal?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableDecimal(observer, selector)));        }        public static IAsyncObservable<Decimal?> Average<TSource>(this IAsyncObservable<TSource> source, Func<TSource, ValueTask<Decimal?>> selector)        {            if (source == null)                throw new ArgumentNullException(nameof(source));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Create<Decimal?>(observer => source.SubscribeSafeAsync(AsyncObserver.AverageNullableDecimal(observer, selector)));        }    }    partial class AsyncObserver    {        public static IAsyncObserver<TSource> AverageInt32<TSource>(IAsyncObserver<Double> observer, Func<TSource, Int32> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageInt32(observer), selector);        }        public static IAsyncObserver<TSource> AverageInt32<TSource>(IAsyncObserver<Double> observer, Func<TSource, ValueTask<Int32>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageInt32(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableInt32<TSource>(IAsyncObserver<Double?> observer, Func<TSource, Int32?> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableInt32(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableInt32<TSource>(IAsyncObserver<Double?> observer, Func<TSource, ValueTask<Int32?>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableInt32(observer), selector);        }        public static IAsyncObserver<TSource> AverageInt64<TSource>(IAsyncObserver<Double> observer, Func<TSource, Int64> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageInt64(observer), selector);        }        public static IAsyncObserver<TSource> AverageInt64<TSource>(IAsyncObserver<Double> observer, Func<TSource, ValueTask<Int64>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageInt64(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableInt64<TSource>(IAsyncObserver<Double?> observer, Func<TSource, Int64?> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableInt64(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableInt64<TSource>(IAsyncObserver<Double?> observer, Func<TSource, ValueTask<Int64?>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableInt64(observer), selector);        }        public static IAsyncObserver<TSource> AverageSingle<TSource>(IAsyncObserver<Single> observer, Func<TSource, Single> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageSingle(observer), selector);        }        public static IAsyncObserver<TSource> AverageSingle<TSource>(IAsyncObserver<Single> observer, Func<TSource, ValueTask<Single>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageSingle(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableSingle<TSource>(IAsyncObserver<Single?> observer, Func<TSource, Single?> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableSingle(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableSingle<TSource>(IAsyncObserver<Single?> observer, Func<TSource, ValueTask<Single?>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableSingle(observer), selector);        }        public static IAsyncObserver<TSource> AverageDouble<TSource>(IAsyncObserver<Double> observer, Func<TSource, Double> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageDouble(observer), selector);        }        public static IAsyncObserver<TSource> AverageDouble<TSource>(IAsyncObserver<Double> observer, Func<TSource, ValueTask<Double>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageDouble(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableDouble<TSource>(IAsyncObserver<Double?> observer, Func<TSource, Double?> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableDouble(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableDouble<TSource>(IAsyncObserver<Double?> observer, Func<TSource, ValueTask<Double?>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableDouble(observer), selector);        }        public static IAsyncObserver<TSource> AverageDecimal<TSource>(IAsyncObserver<Decimal> observer, Func<TSource, Decimal> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageDecimal(observer), selector);        }        public static IAsyncObserver<TSource> AverageDecimal<TSource>(IAsyncObserver<Decimal> observer, Func<TSource, ValueTask<Decimal>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageDecimal(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableDecimal<TSource>(IAsyncObserver<Decimal?> observer, Func<TSource, Decimal?> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableDecimal(observer), selector);        }        public static IAsyncObserver<TSource> AverageNullableDecimal<TSource>(IAsyncObserver<Decimal?> observer, Func<TSource, ValueTask<Decimal?>> selector)        {            if (observer == null)                throw new ArgumentNullException(nameof(observer));            if (selector == null)                throw new ArgumentNullException(nameof(selector));            return Select(AverageNullableDecimal(observer), selector);        }    }}
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