Use source generator to generate AllAsync overloads

Ix.NET/Source/System.Linq.Async/System/Linq/AsyncEnumerable.AsyncOverloads.cs

@@ -11,7 +11,6 @@ namespace System.Linq
     partial class AsyncEnumerable
     {
 #if SUPPORT_FLAT_ASYNC_API
-        public static ValueTask<bool> AllAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<bool>> predicate, CancellationToken cancellationToken = default) => AllAwaitAsyncCore<TSource>(source, predicate, cancellationToken);
         public static ValueTask<bool> AnyAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<bool>> predicate, CancellationToken cancellationToken = default) => AnyAwaitAsyncCore<TSource>(source, predicate, cancellationToken);
         public static ValueTask<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<int>> selector, CancellationToken cancellationToken = default) => AverageAwaitAsyncCore<TSource>(source, selector, cancellationToken);
         public static ValueTask<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<long>> selector, CancellationToken cancellationToken = default) => AverageAwaitAsyncCore<TSource>(source, selector, cancellationToken);
@@ -108,7 +107,6 @@ namespace System.Linq
         public static IAsyncEnumerable<TResult> Zip<TFirst, TSecond, TResult>(this IAsyncEnumerable<TFirst> first, IAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, ValueTask<TResult>> selector) => ZipAwaitCore<TFirst, TSecond, TResult>(first, second, selector);
 
 #if !NO_DEEP_CANCELLATION
-        public static ValueTask<bool> AllAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<bool>> predicate, CancellationToken cancellationToken = default) => AllAwaitWithCancellationAsyncCore<TSource>(source, predicate, cancellationToken);
         public static ValueTask<bool> AnyAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<bool>> predicate, CancellationToken cancellationToken = default) => AnyAwaitWithCancellationAsyncCore<TSource>(source, predicate, cancellationToken);
         public static ValueTask<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<int>> selector, CancellationToken cancellationToken = default) => AverageAwaitWithCancellationAsyncCore<TSource>(source, selector, cancellationToken);
         public static ValueTask<double> AverageAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<long>> selector, CancellationToken cancellationToken = default) => AverageAwaitWithCancellationAsyncCore<TSource>(source, selector, cancellationToken);
@@ -205,18 +203,6 @@ namespace System.Linq
         public static IAsyncEnumerable<TResult> Zip<TFirst, TSecond, TResult>(this IAsyncEnumerable<TFirst> first, IAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, CancellationToken, ValueTask<TResult>> selector) => ZipAwaitWithCancellationCore<TFirst, TSecond, TResult>(first, second, selector);
 #endif
 #else
-        /// <summary>
-        /// Determines whether all elements in an async-enumerable sequence satisfy a condition.
-        /// </summary>
-        /// <typeparam name="TSource">The type of element in the sequence.</typeparam>
-        /// <param name="source">An async-enumerable sequence whose elements to apply the predicate to.</param>
-        /// <param name="predicate">An asynchronous predicate to apply to each element of the source sequence.</param>
-        /// <param name="cancellationToken">An optional cancellation token to be used for cancelling the sequence at any time.</param>
-        /// <returns>A ValueTask containing a value indicating whether all elements in the sequence pass the test in the specified predicate.</returns>
-        /// <exception cref="ArgumentNullException"><paramref name="source"/> or <paramref name="predicate"/> is <see langword="null"/>.</exception>
-        /// <remarks>The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.</remarks>
-        public static ValueTask<bool> AllAwaitAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<bool>> predicate, CancellationToken cancellationToken = default) => AllAwaitAsyncCore<TSource>(source, predicate, cancellationToken);
-
         /// <summary>
         /// Determines whether any element in an async-enumerable sequence satisfies a condition.
         /// </summary>
@@ -1312,7 +1298,6 @@ namespace System.Linq
         public static IAsyncEnumerable<TResult> ZipAwait<TFirst, TSecond, TResult>(this IAsyncEnumerable<TFirst> first, IAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, ValueTask<TResult>> selector) => ZipAwaitCore<TFirst, TSecond, TResult>(first, second, selector);
 
 #if !NO_DEEP_CANCELLATION
-        public static ValueTask<bool> AllAwaitWithCancellationAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<bool>> predicate, CancellationToken cancellationToken = default) => AllAwaitWithCancellationAsyncCore<TSource>(source, predicate, cancellationToken);
         public static ValueTask<bool> AnyAwaitWithCancellationAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<bool>> predicate, CancellationToken cancellationToken = default) => AnyAwaitWithCancellationAsyncCore<TSource>(source, predicate, cancellationToken);
         public static ValueTask<double> AverageAwaitWithCancellationAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<int>> selector, CancellationToken cancellationToken = default) => AverageAwaitWithCancellationAsyncCore<TSource>(source, selector, cancellationToken);
         public static ValueTask<double> AverageAwaitWithCancellationAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<long>> selector, CancellationToken cancellationToken = default) => AverageAwaitWithCancellationAsyncCore<TSource>(source, selector, cancellationToken);

Ix.NET/Source/System.Linq.Async/System/Linq/Operators/All.cs

@@ -43,7 +43,18 @@ namespace System.Linq
             }
         }
 
-        internal static ValueTask<bool> AllAwaitAsyncCore<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<bool>> predicate, CancellationToken cancellationToken = default)
+        /// <summary>
+        /// Determines whether all elements in an async-enumerable sequence satisfy a condition.
+        /// </summary>
+        /// <typeparam name="TSource">The type of element in the sequence.</typeparam>
+        /// <param name="source">An async-enumerable sequence whose elements to apply the predicate to.</param>
+        /// <param name="predicate">An asynchronous predicate to apply to each element of the source sequence.</param>
+        /// <param name="cancellationToken">An optional cancellation token to be used for cancelling the sequence at any time.</param>
+        /// <returns>A ValueTask containing a value indicating whether all elements in the sequence pass the test in the specified predicate.</returns>
+        /// <exception cref="ArgumentNullException"><paramref name="source"/> or <paramref name="predicate"/> is <see langword="null"/>.</exception>
+        /// <remarks>The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.</remarks>
+        [GenerateAsyncOverload]
+        private static ValueTask<bool> AllAwaitAsyncCore<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, ValueTask<bool>> predicate, CancellationToken cancellationToken = default)
         {
             if (source == null)
                 throw Error.ArgumentNull(nameof(source));
@@ -67,6 +78,7 @@ namespace System.Linq
         }
 
 #if !NO_DEEP_CANCELLATION
+        [GenerateAsyncOverload]
         internal static ValueTask<bool> AllAwaitWithCancellationAsyncCore<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, ValueTask<bool>> predicate, CancellationToken cancellationToken = default)
         {
             if (source == null)