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First, Last, Single, ElementAt

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neuecc
2020-05-09 23:22:51 +09:00
parent dd6a8da96f
commit aa8cb80866
14 changed files with 1002 additions and 6315 deletions
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825
src/UniTask.NetCore/Linq/ElementAt.cs
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@@ -1,775 +1,58 @@
namespace Cysharp.Threading.Tasks.Linq
using Cysharp.Threading.Tasks.Internal;
using System;
using System.Threading;
namespace Cysharp.Threading.Tasks.Linq
{
internal sealed class ElementAt
public static partial class UniTaskAsyncEnumerable
{
public static UniTask<TSource> ElementAtAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, int index, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
return ElementAt.InvokeAsync(source, index, cancellationToken, false);
}
public static UniTask<TSource> ElementAtOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, int index, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
return ElementAt.InvokeAsync(source, index, cancellationToken, true);
}
}
}
internal static class ElementAt
{
public static async UniTask<TSource> InvokeAsync<TSource>(IUniTaskAsyncEnumerable<TSource> source, int index, CancellationToken cancellationToken, bool defaultIfEmpty)
{
var e = source.GetAsyncEnumerator(cancellationToken);
try
{
int i = 0;
while (await e.MoveNextAsync())
{
if (i++ == index)
{
return e.Current;
}
}
if (defaultIfEmpty)
{
return default;
}
else
{
throw Error.ArgumentOutOfRange(nameof(index));
}
}
finally
{
if (e != null)
{
await e.DisposeAsync();
}
}
}
}
}

775
src/UniTask.NetCore/Linq/ElementAtOrDefault.cs
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@@ -1,775 +0,0 @@
namespace Cysharp.Threading.Tasks.Linq
{
internal sealed class ElementAtOrDefault
{
}
}

967
src/UniTask.NetCore/Linq/First.cs
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@@ -1,775 +1,200 @@
namespace Cysharp.Threading.Tasks.Linq
using Cysharp.Threading.Tasks.Internal;
using System;
using System.Threading;
namespace Cysharp.Threading.Tasks.Linq
{
internal sealed class First
public static partial class UniTaskAsyncEnumerable
{
public static UniTask<TSource> FirstAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
return First.InvokeAsync(source, cancellationToken, false);
}
public static UniTask<TSource> FirstAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
Error.ThrowArgumentNullException(predicate, nameof(predicate));
return First.InvokeAsync(source, predicate, cancellationToken, false);
}
public static UniTask<TSource> FirstAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
Error.ThrowArgumentNullException(predicate, nameof(predicate));
return First.InvokeAsync(source, predicate, cancellationToken, false);
}
public static UniTask<TSource> FirstAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
Error.ThrowArgumentNullException(predicate, nameof(predicate));
return First.InvokeAsync(source, predicate, cancellationToken, false);
}
public static UniTask<TSource> FirstOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
return First.InvokeAsync(source, cancellationToken, true);
}
public static UniTask<TSource> FirstOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
Error.ThrowArgumentNullException(predicate, nameof(predicate));
return First.InvokeAsync(source, predicate, cancellationToken, true);
}
public static UniTask<TSource> FirstOrDefaultAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
Error.ThrowArgumentNullException(predicate, nameof(predicate));
return First.InvokeAsync(source, predicate, cancellationToken, true);
}
public static UniTask<TSource> FirstOrDefaultAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
Error.ThrowArgumentNullException(predicate, nameof(predicate));
return First.InvokeAsync(source, predicate, cancellationToken, true);
}
}
}
internal static class First
{
public static async UniTask<TSource> InvokeAsync<TSource>(IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken, bool defaultIfEmpty)
{
var e = source.GetAsyncEnumerator(cancellationToken);
try
{
if (await e.MoveNextAsync())
{
return e.Current;
}
else
{
if (defaultIfEmpty)
{
return default;
}
else
{
throw Error.NoElements();
}
}
}
finally
{
if (e != null)
{
await e.DisposeAsync();
}
}
}
public static async UniTask<TSource> InvokeAsync<TSource>(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken, bool defaultIfEmpty)
{
var e = source.GetAsyncEnumerator(cancellationToken);
try
{
while (await e.MoveNextAsync())
{
var v = e.Current;
if (predicate(v))
{
return v;
}
}
if (defaultIfEmpty)
{
return default;
}
else
{
throw Error.NoElements();
}
}
finally
{
if (e != null)
{
await e.DisposeAsync();
}
}
}
public static async UniTask<TSource> InvokeAsync<TSource>(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken, bool defaultIfEmpty)
{
var e = source.GetAsyncEnumerator(cancellationToken);
try
{
while (await e.MoveNextAsync())
{
var v = e.Current;
if (await predicate(v))
{
return v;
}
}
if (defaultIfEmpty)
{
return default;
}
else
{
throw Error.NoElements();
}
}
finally
{
if (e != null)
{
await e.DisposeAsync();
}
}
}
public static async UniTask<TSource> InvokeAsync<TSource>(IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken, bool defaultIfEmpty)
{
var e = source.GetAsyncEnumerator(cancellationToken);
try
{
while (await e.MoveNextAsync())
{
var v = e.Current;
if (await predicate(v, cancellationToken))
{
return v;
}
}
if (defaultIfEmpty)
{
return default;
}
else
{
throw Error.NoElements();
}
}
finally
{
if (e != null)
{
await e.DisposeAsync();
}
}
}
}
}

775
src/UniTask.NetCore/Linq/FirstOrDefault.cs
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@@ -1,775 +0,0 @@
namespace Cysharp.Threading.Tasks.Linq
{
internal sealed class FirstOrDefault
{
}
}

1007
src/UniTask.NetCore/Linq/Last.cs
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File diff suppressed because it is too large Load Diff

775
src/UniTask.NetCore/Linq/LastOrDefault.cs
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@@ -1,775 +0,0 @@
namespace Cysharp.Threading.Tasks.Linq
{
internal sealed class LastOrDefault
{
}
}

998
src/UniTask.NetCore/Linq/Single.cs
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File diff suppressed because it is too large Load Diff

775
src/UniTask.NetCore/Linq/SingleOrDefault.cs
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@@ -1,775 +0,0 @@
namespace Cysharp.Threading.Tasks.Linq
{
internal sealed class SingleOrDefault
{
}
}

13
src/UniTask.NetCore/Linq/ToUniTaskAsyncEnumerable.cs
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@@ -223,6 +223,8 @@ namespace Cysharp.Threading.Tasks.Linq
CancellationToken cancellationToken;
bool useCachedCurrent;
T current;
bool subscribeCompleted;
readonly Queue<T> queuedResult;
Exception error;
@@ -250,7 +252,14 @@ namespace Cysharp.Threading.Tasks.Linq
ExceptionDispatchInfo.Capture(error).Throw();
}
return queuedResult.Dequeue();
if (useCachedCurrent)
{
return current;
}
current = queuedResult.Dequeue();
useCachedCurrent = true;
return current;
}
}
@@ -258,6 +267,8 @@ namespace Cysharp.Threading.Tasks.Linq
{
lock (queuedResult)
{
useCachedCurrent = false;
if (cancellationToken.IsCancellationRequested)
{
return UniTask.FromCanceled<bool>(cancellationToken);

119
src/UniTask.NetCore/Linq/_FileMaker.cs
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@@ -172,45 +172,7 @@ namespace ___Dummy
throw new NotImplementedException();
}
public static UniTask<TSource> FirstAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> FirstAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> FirstAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> FirstAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> FirstOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> FirstOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> FirstOrDefaultAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> FirstOrDefaultAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static IUniTaskAsyncEnumerable<TResult> GroupBy<TSource, TKey, TElement, TResult>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, Func<TKey, IUniTaskAsyncEnumerable<TElement>, TResult> resultSelector, IEqualityComparer<TKey> comparer)
@@ -403,46 +365,7 @@ namespace ___Dummy
throw new NotImplementedException();
}
public static UniTask<TSource> LastAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> LastAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> LastAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> LastAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> LastOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> LastOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> LastOrDefaultAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> LastOrDefaultAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<Int64> LongCountAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
@@ -611,46 +534,6 @@ namespace ___Dummy
throw new NotImplementedException();
}
public static UniTask<TSource> SingleAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> SingleAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> SingleAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> SingleAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> SingleOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> SingleOrDefaultAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, Boolean> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> SingleOrDefaultAwaitAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static UniTask<TSource> SingleOrDefaultAwaitWithCancellationAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Func<TSource, CancellationToken, UniTask<Boolean>> predicate, CancellationToken cancellationToken = default)
{
throw new NotImplementedException();
}
public static IUniTaskAsyncEnumerable<TSource> Skip<TSource>(this IUniTaskAsyncEnumerable<TSource> source, Int32 count)
{
throw new NotImplementedException();