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https://github.com/Alex-Rachel/TEngine.git
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更新Demo
更新Demo
This commit is contained in:
@@ -0,0 +1,662 @@
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using Cysharp.Threading.Tasks.Internal;
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using System;
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using System.Collections.Generic;
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using System.Threading;
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namespace Cysharp.Threading.Tasks.Linq
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{
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public static partial class UniTaskAsyncEnumerable
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{
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChanged<TSource>(this IUniTaskAsyncEnumerable<TSource> source)
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{
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return DistinctUntilChanged(source, EqualityComparer<TSource>.Default);
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}
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChanged<TSource>(this IUniTaskAsyncEnumerable<TSource> source, IEqualityComparer<TSource> comparer)
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{
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Error.ThrowArgumentNullException(source, nameof(source));
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Error.ThrowArgumentNullException(comparer, nameof(comparer));
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return new DistinctUntilChanged<TSource>(source, comparer);
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}
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChanged<TSource, TKey>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, TKey> keySelector)
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{
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return DistinctUntilChanged(source, keySelector, EqualityComparer<TKey>.Default);
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}
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChanged<TSource, TKey>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey> comparer)
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{
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Error.ThrowArgumentNullException(source, nameof(source));
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Error.ThrowArgumentNullException(keySelector, nameof(keySelector));
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Error.ThrowArgumentNullException(comparer, nameof(comparer));
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return new DistinctUntilChanged<TSource, TKey>(source, keySelector, comparer);
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}
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChangedAwait<TSource, TKey>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<TKey>> keySelector)
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{
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return DistinctUntilChangedAwait(source, keySelector, EqualityComparer<TKey>.Default);
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}
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChangedAwait<TSource, TKey>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<TKey>> keySelector, IEqualityComparer<TKey> comparer)
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{
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Error.ThrowArgumentNullException(source, nameof(source));
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Error.ThrowArgumentNullException(keySelector, nameof(keySelector));
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Error.ThrowArgumentNullException(comparer, nameof(comparer));
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return new DistinctUntilChangedAwait<TSource, TKey>(source, keySelector, comparer);
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}
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChangedAwaitWithCancellation<TSource, TKey>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<TKey>> keySelector)
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{
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return DistinctUntilChangedAwaitWithCancellation(source, keySelector, EqualityComparer<TKey>.Default);
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}
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public static IUniTaskAsyncEnumerable<TSource> DistinctUntilChangedAwaitWithCancellation<TSource, TKey>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<TKey>> keySelector, IEqualityComparer<TKey> comparer)
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{
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Error.ThrowArgumentNullException(source, nameof(source));
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Error.ThrowArgumentNullException(keySelector, nameof(keySelector));
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Error.ThrowArgumentNullException(comparer, nameof(comparer));
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return new DistinctUntilChangedAwaitWithCancellation<TSource, TKey>(source, keySelector, comparer);
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}
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}
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internal sealed class DistinctUntilChanged<TSource> : IUniTaskAsyncEnumerable<TSource>
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{
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readonly IUniTaskAsyncEnumerable<TSource> source;
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readonly IEqualityComparer<TSource> comparer;
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public DistinctUntilChanged(IUniTaskAsyncEnumerable<TSource> source, IEqualityComparer<TSource> comparer)
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{
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this.source = source;
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this.comparer = comparer;
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}
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public IUniTaskAsyncEnumerator<TSource> GetAsyncEnumerator(CancellationToken cancellationToken = default)
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{
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return new _DistinctUntilChanged(source, comparer, cancellationToken);
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}
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sealed class _DistinctUntilChanged : MoveNextSource, IUniTaskAsyncEnumerator<TSource>
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{
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readonly IUniTaskAsyncEnumerable<TSource> source;
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readonly IEqualityComparer<TSource> comparer;
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readonly CancellationToken cancellationToken;
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int state = -1;
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IUniTaskAsyncEnumerator<TSource> enumerator;
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UniTask<bool>.Awaiter awaiter;
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Action moveNextAction;
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public _DistinctUntilChanged(IUniTaskAsyncEnumerable<TSource> source, IEqualityComparer<TSource> comparer, CancellationToken cancellationToken)
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{
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this.source = source;
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this.comparer = comparer;
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this.cancellationToken = cancellationToken;
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this.moveNextAction = MoveNext;
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}
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public TSource Current { get; private set; }
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public UniTask<bool> MoveNextAsync()
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{
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if (state == -2) return default;
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completionSource.Reset();
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MoveNext();
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return new UniTask<bool>(this, completionSource.Version);
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}
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void MoveNext()
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{
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REPEAT:
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try
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{
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switch (state)
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{
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case -1: // init
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enumerator = source.GetAsyncEnumerator(cancellationToken);
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awaiter = enumerator.MoveNextAsync().GetAwaiter();
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if (awaiter.IsCompleted)
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{
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goto case -3;
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}
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else
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{
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state = -3;
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awaiter.UnsafeOnCompleted(moveNextAction);
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return;
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}
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case -3: // first
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if (awaiter.GetResult())
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{
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Current = enumerator.Current;
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goto CONTINUE;
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}
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else
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{
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goto DONE;
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}
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case 0: // normal
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awaiter = enumerator.MoveNextAsync().GetAwaiter();
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if (awaiter.IsCompleted)
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{
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goto case 1;
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}
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else
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{
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state = 1;
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awaiter.UnsafeOnCompleted(moveNextAction);
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return;
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}
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case 1:
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if (awaiter.GetResult())
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{
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var v = enumerator.Current;
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if (!comparer.Equals(Current, v))
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{
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Current = v;
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goto CONTINUE;
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}
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else
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{
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state = 0;
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goto REPEAT;
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}
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}
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else
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{
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goto DONE;
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}
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case -2:
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default:
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goto DONE;
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}
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}
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catch (Exception ex)
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{
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state = -2;
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completionSource.TrySetException(ex);
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return;
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}
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DONE:
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state = -2;
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completionSource.TrySetResult(false);
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return;
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CONTINUE:
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state = 0;
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completionSource.TrySetResult(true);
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return;
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}
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public UniTask DisposeAsync()
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{
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return enumerator.DisposeAsync();
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}
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}
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}
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internal sealed class DistinctUntilChanged<TSource, TKey> : IUniTaskAsyncEnumerable<TSource>
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{
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readonly IUniTaskAsyncEnumerable<TSource> source;
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readonly Func<TSource, TKey> keySelector;
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readonly IEqualityComparer<TKey> comparer;
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public DistinctUntilChanged(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey> comparer)
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{
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this.source = source;
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this.keySelector = keySelector;
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this.comparer = comparer;
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}
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public IUniTaskAsyncEnumerator<TSource> GetAsyncEnumerator(CancellationToken cancellationToken = default)
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{
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return new _DistinctUntilChanged(source, keySelector, comparer, cancellationToken);
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}
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sealed class _DistinctUntilChanged : MoveNextSource, IUniTaskAsyncEnumerator<TSource>
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{
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readonly IUniTaskAsyncEnumerable<TSource> source;
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readonly Func<TSource, TKey> keySelector;
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readonly IEqualityComparer<TKey> comparer;
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readonly CancellationToken cancellationToken;
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int state = -1;
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IUniTaskAsyncEnumerator<TSource> enumerator;
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UniTask<bool>.Awaiter awaiter;
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Action moveNextAction;
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TKey prev;
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public _DistinctUntilChanged(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey> comparer, CancellationToken cancellationToken)
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{
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this.source = source;
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this.keySelector = keySelector;
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this.comparer = comparer;
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this.cancellationToken = cancellationToken;
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this.moveNextAction = MoveNext;
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}
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public TSource Current { get; private set; }
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public UniTask<bool> MoveNextAsync()
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{
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if (state == -2) return default;
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completionSource.Reset();
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MoveNext();
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return new UniTask<bool>(this, completionSource.Version);
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}
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void MoveNext()
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{
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REPEAT:
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try
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{
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switch (state)
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{
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case -1: // init
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enumerator = source.GetAsyncEnumerator(cancellationToken);
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awaiter = enumerator.MoveNextAsync().GetAwaiter();
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if (awaiter.IsCompleted)
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{
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goto case -3;
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}
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else
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{
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state = -3;
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awaiter.UnsafeOnCompleted(moveNextAction);
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return;
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}
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case -3: // first
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if (awaiter.GetResult())
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{
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Current = enumerator.Current;
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goto CONTINUE;
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}
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else
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{
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goto DONE;
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}
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case 0: // normal
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awaiter = enumerator.MoveNextAsync().GetAwaiter();
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if (awaiter.IsCompleted)
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{
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goto case 1;
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}
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else
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{
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state = 1;
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awaiter.UnsafeOnCompleted(moveNextAction);
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return;
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}
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case 1:
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if (awaiter.GetResult())
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{
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var v = enumerator.Current;
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var key = keySelector(v);
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if (!comparer.Equals(prev, key))
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{
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prev = key;
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Current = v;
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goto CONTINUE;
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}
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else
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{
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state = 0;
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goto REPEAT;
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}
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}
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else
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{
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goto DONE;
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}
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case -2:
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default:
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goto DONE;
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}
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}
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catch (Exception ex)
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{
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state = -2;
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completionSource.TrySetException(ex);
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return;
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}
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DONE:
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state = -2;
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completionSource.TrySetResult(false);
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return;
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CONTINUE:
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state = 0;
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completionSource.TrySetResult(true);
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return;
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}
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public UniTask DisposeAsync()
|
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{
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return enumerator.DisposeAsync();
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}
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}
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}
|
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internal sealed class DistinctUntilChangedAwait<TSource, TKey> : IUniTaskAsyncEnumerable<TSource>
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{
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readonly IUniTaskAsyncEnumerable<TSource> source;
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readonly Func<TSource, UniTask<TKey>> keySelector;
|
||||
readonly IEqualityComparer<TKey> comparer;
|
||||
|
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public DistinctUntilChangedAwait(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<TKey>> keySelector, IEqualityComparer<TKey> comparer)
|
||||
{
|
||||
this.source = source;
|
||||
this.keySelector = keySelector;
|
||||
this.comparer = comparer;
|
||||
}
|
||||
|
||||
public IUniTaskAsyncEnumerator<TSource> GetAsyncEnumerator(CancellationToken cancellationToken = default)
|
||||
{
|
||||
return new _DistinctUntilChangedAwait(source, keySelector, comparer, cancellationToken);
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}
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||||
|
||||
sealed class _DistinctUntilChangedAwait : MoveNextSource, IUniTaskAsyncEnumerator<TSource>
|
||||
{
|
||||
readonly IUniTaskAsyncEnumerable<TSource> source;
|
||||
readonly Func<TSource, UniTask<TKey>> keySelector;
|
||||
readonly IEqualityComparer<TKey> comparer;
|
||||
readonly CancellationToken cancellationToken;
|
||||
|
||||
int state = -1;
|
||||
IUniTaskAsyncEnumerator<TSource> enumerator;
|
||||
UniTask<bool>.Awaiter awaiter;
|
||||
UniTask<TKey>.Awaiter awaiter2;
|
||||
Action moveNextAction;
|
||||
TSource enumeratorCurrent;
|
||||
TKey prev;
|
||||
|
||||
public _DistinctUntilChangedAwait(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<TKey>> keySelector, IEqualityComparer<TKey> comparer, CancellationToken cancellationToken)
|
||||
{
|
||||
this.source = source;
|
||||
this.keySelector = keySelector;
|
||||
this.comparer = comparer;
|
||||
this.cancellationToken = cancellationToken;
|
||||
this.moveNextAction = MoveNext;
|
||||
}
|
||||
|
||||
public TSource Current { get; private set; }
|
||||
|
||||
public UniTask<bool> MoveNextAsync()
|
||||
{
|
||||
if (state == -2) return default;
|
||||
|
||||
completionSource.Reset();
|
||||
MoveNext();
|
||||
return new UniTask<bool>(this, completionSource.Version);
|
||||
}
|
||||
|
||||
void MoveNext()
|
||||
{
|
||||
REPEAT:
|
||||
try
|
||||
{
|
||||
switch (state)
|
||||
{
|
||||
case -1: // init
|
||||
enumerator = source.GetAsyncEnumerator(cancellationToken);
|
||||
awaiter = enumerator.MoveNextAsync().GetAwaiter();
|
||||
if (awaiter.IsCompleted)
|
||||
{
|
||||
goto case -3;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = -3;
|
||||
awaiter.UnsafeOnCompleted(moveNextAction);
|
||||
return;
|
||||
}
|
||||
case -3: // first
|
||||
if (awaiter.GetResult())
|
||||
{
|
||||
Current = enumerator.Current;
|
||||
goto CONTINUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
goto DONE;
|
||||
}
|
||||
case 0: // normal
|
||||
awaiter = enumerator.MoveNextAsync().GetAwaiter();
|
||||
if (awaiter.IsCompleted)
|
||||
{
|
||||
goto case 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = 1;
|
||||
awaiter.UnsafeOnCompleted(moveNextAction);
|
||||
return;
|
||||
}
|
||||
case 1:
|
||||
if (awaiter.GetResult())
|
||||
{
|
||||
enumeratorCurrent = enumerator.Current;
|
||||
awaiter2 = keySelector(enumeratorCurrent).GetAwaiter();
|
||||
if (awaiter2.IsCompleted)
|
||||
{
|
||||
goto case 2;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = 2;
|
||||
awaiter2.UnsafeOnCompleted(moveNextAction);
|
||||
return;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
goto DONE;
|
||||
}
|
||||
case 2:
|
||||
var key = awaiter2.GetResult();
|
||||
if (!comparer.Equals(prev, key))
|
||||
{
|
||||
prev = key;
|
||||
Current = enumeratorCurrent;
|
||||
goto CONTINUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = 0;
|
||||
goto REPEAT;
|
||||
}
|
||||
case -2:
|
||||
default:
|
||||
goto DONE;
|
||||
}
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
state = -2;
|
||||
completionSource.TrySetException(ex);
|
||||
return;
|
||||
}
|
||||
|
||||
DONE:
|
||||
state = -2;
|
||||
completionSource.TrySetResult(false);
|
||||
return;
|
||||
|
||||
CONTINUE:
|
||||
state = 0;
|
||||
completionSource.TrySetResult(true);
|
||||
return;
|
||||
}
|
||||
|
||||
public UniTask DisposeAsync()
|
||||
{
|
||||
return enumerator.DisposeAsync();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
internal sealed class DistinctUntilChangedAwaitWithCancellation<TSource, TKey> : IUniTaskAsyncEnumerable<TSource>
|
||||
{
|
||||
readonly IUniTaskAsyncEnumerable<TSource> source;
|
||||
readonly Func<TSource, CancellationToken, UniTask<TKey>> keySelector;
|
||||
readonly IEqualityComparer<TKey> comparer;
|
||||
|
||||
public DistinctUntilChangedAwaitWithCancellation(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<TKey>> keySelector, IEqualityComparer<TKey> comparer)
|
||||
{
|
||||
this.source = source;
|
||||
this.keySelector = keySelector;
|
||||
this.comparer = comparer;
|
||||
}
|
||||
|
||||
public IUniTaskAsyncEnumerator<TSource> GetAsyncEnumerator(CancellationToken cancellationToken = default)
|
||||
{
|
||||
return new _DistinctUntilChangedAwaitWithCancellation(source, keySelector, comparer, cancellationToken);
|
||||
}
|
||||
|
||||
sealed class _DistinctUntilChangedAwaitWithCancellation : MoveNextSource, IUniTaskAsyncEnumerator<TSource>
|
||||
{
|
||||
readonly IUniTaskAsyncEnumerable<TSource> source;
|
||||
readonly Func<TSource, CancellationToken, UniTask<TKey>> keySelector;
|
||||
readonly IEqualityComparer<TKey> comparer;
|
||||
readonly CancellationToken cancellationToken;
|
||||
|
||||
int state = -1;
|
||||
IUniTaskAsyncEnumerator<TSource> enumerator;
|
||||
UniTask<bool>.Awaiter awaiter;
|
||||
UniTask<TKey>.Awaiter awaiter2;
|
||||
Action moveNextAction;
|
||||
TSource enumeratorCurrent;
|
||||
TKey prev;
|
||||
|
||||
public _DistinctUntilChangedAwaitWithCancellation(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<TKey>> keySelector, IEqualityComparer<TKey> comparer, CancellationToken cancellationToken)
|
||||
{
|
||||
this.source = source;
|
||||
this.keySelector = keySelector;
|
||||
this.comparer = comparer;
|
||||
this.cancellationToken = cancellationToken;
|
||||
this.moveNextAction = MoveNext;
|
||||
}
|
||||
|
||||
public TSource Current { get; private set; }
|
||||
|
||||
public UniTask<bool> MoveNextAsync()
|
||||
{
|
||||
if (state == -2) return default;
|
||||
|
||||
completionSource.Reset();
|
||||
MoveNext();
|
||||
return new UniTask<bool>(this, completionSource.Version);
|
||||
}
|
||||
|
||||
void MoveNext()
|
||||
{
|
||||
REPEAT:
|
||||
try
|
||||
{
|
||||
switch (state)
|
||||
{
|
||||
case -1: // init
|
||||
enumerator = source.GetAsyncEnumerator(cancellationToken);
|
||||
awaiter = enumerator.MoveNextAsync().GetAwaiter();
|
||||
if (awaiter.IsCompleted)
|
||||
{
|
||||
goto case -3;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = -3;
|
||||
awaiter.UnsafeOnCompleted(moveNextAction);
|
||||
return;
|
||||
}
|
||||
case -3: // first
|
||||
if (awaiter.GetResult())
|
||||
{
|
||||
Current = enumerator.Current;
|
||||
goto CONTINUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
goto DONE;
|
||||
}
|
||||
case 0: // normal
|
||||
awaiter = enumerator.MoveNextAsync().GetAwaiter();
|
||||
if (awaiter.IsCompleted)
|
||||
{
|
||||
goto case 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = 1;
|
||||
awaiter.UnsafeOnCompleted(moveNextAction);
|
||||
return;
|
||||
}
|
||||
case 1:
|
||||
if (awaiter.GetResult())
|
||||
{
|
||||
enumeratorCurrent = enumerator.Current;
|
||||
awaiter2 = keySelector(enumeratorCurrent, cancellationToken).GetAwaiter();
|
||||
if (awaiter2.IsCompleted)
|
||||
{
|
||||
goto case 2;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = 2;
|
||||
awaiter2.UnsafeOnCompleted(moveNextAction);
|
||||
return;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
goto DONE;
|
||||
}
|
||||
case 2:
|
||||
var key = awaiter2.GetResult();
|
||||
if (!comparer.Equals(prev, key))
|
||||
{
|
||||
prev = key;
|
||||
Current = enumeratorCurrent;
|
||||
goto CONTINUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
state = 0;
|
||||
goto REPEAT;
|
||||
}
|
||||
case -2:
|
||||
default:
|
||||
goto DONE;
|
||||
}
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
state = -2;
|
||||
completionSource.TrySetException(ex);
|
||||
return;
|
||||
}
|
||||
|
||||
DONE:
|
||||
state = -2;
|
||||
completionSource.TrySetResult(false);
|
||||
return;
|
||||
|
||||
CONTINUE:
|
||||
state = 0;
|
||||
completionSource.TrySetResult(true);
|
||||
return;
|
||||
}
|
||||
|
||||
public UniTask DisposeAsync()
|
||||
{
|
||||
return enumerator.DisposeAsync();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user