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CrowdControl/Assets/Plugins/UniTask/Runtime/Linq/Zip.cs

541 lines
21 KiB
C#

using Cysharp.Threading.Tasks.Internal;
using System;
using System.Threading;
namespace Cysharp.Threading.Tasks.Linq
{
public static partial class UniTaskAsyncEnumerable
{
public static IUniTaskAsyncEnumerable<(TFirst First, TSecond Second)> Zip<TFirst, TSecond>(this IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second)
{
Error.ThrowArgumentNullException(first, nameof(first));
Error.ThrowArgumentNullException(second, nameof(second));
return Zip(first, second, (x, y) => (x, y));
}
public static IUniTaskAsyncEnumerable<TResult> Zip<TFirst, TSecond, TResult>(this IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector)
{
Error.ThrowArgumentNullException(first, nameof(first));
Error.ThrowArgumentNullException(second, nameof(second));
Error.ThrowArgumentNullException(resultSelector, nameof(resultSelector));
return new Zip<TFirst, TSecond, TResult>(first, second, resultSelector);
}
public static IUniTaskAsyncEnumerable<TResult> ZipAwait<TFirst, TSecond, TResult>(this IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, UniTask<TResult>> selector)
{
Error.ThrowArgumentNullException(first, nameof(first));
Error.ThrowArgumentNullException(second, nameof(second));
Error.ThrowArgumentNullException(selector, nameof(selector));
return new ZipAwait<TFirst, TSecond, TResult>(first, second, selector);
}
public static IUniTaskAsyncEnumerable<TResult> ZipAwaitWithCancellation<TFirst, TSecond, TResult>(this IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, CancellationToken, UniTask<TResult>> selector)
{
Error.ThrowArgumentNullException(first, nameof(first));
Error.ThrowArgumentNullException(second, nameof(second));
Error.ThrowArgumentNullException(selector, nameof(selector));
return new ZipAwaitWithCancellation<TFirst, TSecond, TResult>(first, second, selector);
}
}
internal sealed class Zip<TFirst, TSecond, TResult> : IUniTaskAsyncEnumerable<TResult>
{
readonly IUniTaskAsyncEnumerable<TFirst> first;
readonly IUniTaskAsyncEnumerable<TSecond> second;
readonly Func<TFirst, TSecond, TResult> resultSelector;
public Zip(IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector)
{
this.first = first;
this.second = second;
this.resultSelector = resultSelector;
}
public IUniTaskAsyncEnumerator<TResult> GetAsyncEnumerator(CancellationToken cancellationToken = default)
{
return new _Zip(first, second, resultSelector, cancellationToken);
}
sealed class _Zip : MoveNextSource, IUniTaskAsyncEnumerator<TResult>
{
static readonly Action<object> firstMoveNextCoreDelegate = FirstMoveNextCore;
static readonly Action<object> secondMoveNextCoreDelegate = SecondMoveNextCore;
readonly IUniTaskAsyncEnumerable<TFirst> first;
readonly IUniTaskAsyncEnumerable<TSecond> second;
readonly Func<TFirst, TSecond, TResult> resultSelector;
CancellationToken cancellationToken;
IUniTaskAsyncEnumerator<TFirst> firstEnumerator;
IUniTaskAsyncEnumerator<TSecond> secondEnumerator;
UniTask<bool>.Awaiter firstAwaiter;
UniTask<bool>.Awaiter secondAwaiter;
public _Zip(IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector, CancellationToken cancellationToken)
{
this.first = first;
this.second = second;
this.resultSelector = resultSelector;
this.cancellationToken = cancellationToken;
TaskTracker.TrackActiveTask(this, 3);
}
public TResult Current { get; private set; }
public UniTask<bool> MoveNextAsync()
{
completionSource.Reset();
if (firstEnumerator == null)
{
firstEnumerator = first.GetAsyncEnumerator(cancellationToken);
secondEnumerator = second.GetAsyncEnumerator(cancellationToken);
}
firstAwaiter = firstEnumerator.MoveNextAsync().GetAwaiter();
if (firstAwaiter.IsCompleted)
{
FirstMoveNextCore(this);
}
else
{
firstAwaiter.SourceOnCompleted(firstMoveNextCoreDelegate, this);
}
return new UniTask<bool>(this, completionSource.Version);
}
static void FirstMoveNextCore(object state)
{
var self = (_Zip)state;
if (self.TryGetResult(self.firstAwaiter, out var result))
{
if (result)
{
try
{
self.secondAwaiter = self.secondEnumerator.MoveNextAsync().GetAwaiter();
}
catch (Exception ex)
{
self.completionSource.TrySetException(ex);
return;
}
if (self.secondAwaiter.IsCompleted)
{
SecondMoveNextCore(self);
}
else
{
self.secondAwaiter.SourceOnCompleted(secondMoveNextCoreDelegate, self);
}
}
else
{
self.completionSource.TrySetResult(false);
}
}
}
static void SecondMoveNextCore(object state)
{
var self = (_Zip)state;
if (self.TryGetResult(self.secondAwaiter, out var result))
{
if (result)
{
try
{
self.Current = self.resultSelector(self.firstEnumerator.Current, self.secondEnumerator.Current);
}
catch (Exception ex)
{
self.completionSource.TrySetException(ex);
}
if (self.cancellationToken.IsCancellationRequested)
{
self.completionSource.TrySetCanceled(self.cancellationToken);
}
else
{
self.completionSource.TrySetResult(true);
}
}
else
{
self.completionSource.TrySetResult(false);
}
}
}
public async UniTask DisposeAsync()
{
TaskTracker.RemoveTracking(this);
if (firstEnumerator != null)
{
await firstEnumerator.DisposeAsync();
}
if (secondEnumerator != null)
{
await secondEnumerator.DisposeAsync();
}
}
}
}
internal sealed class ZipAwait<TFirst, TSecond, TResult> : IUniTaskAsyncEnumerable<TResult>
{
readonly IUniTaskAsyncEnumerable<TFirst> first;
readonly IUniTaskAsyncEnumerable<TSecond> second;
readonly Func<TFirst, TSecond, UniTask<TResult>> resultSelector;
public ZipAwait(IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, UniTask<TResult>> resultSelector)
{
this.first = first;
this.second = second;
this.resultSelector = resultSelector;
}
public IUniTaskAsyncEnumerator<TResult> GetAsyncEnumerator(CancellationToken cancellationToken = default)
{
return new _ZipAwait(first, second, resultSelector, cancellationToken);
}
sealed class _ZipAwait : MoveNextSource, IUniTaskAsyncEnumerator<TResult>
{
static readonly Action<object> firstMoveNextCoreDelegate = FirstMoveNextCore;
static readonly Action<object> secondMoveNextCoreDelegate = SecondMoveNextCore;
static readonly Action<object> resultAwaitCoreDelegate = ResultAwaitCore;
readonly IUniTaskAsyncEnumerable<TFirst> first;
readonly IUniTaskAsyncEnumerable<TSecond> second;
readonly Func<TFirst, TSecond, UniTask<TResult>> resultSelector;
CancellationToken cancellationToken;
IUniTaskAsyncEnumerator<TFirst> firstEnumerator;
IUniTaskAsyncEnumerator<TSecond> secondEnumerator;
UniTask<bool>.Awaiter firstAwaiter;
UniTask<bool>.Awaiter secondAwaiter;
UniTask<TResult>.Awaiter resultAwaiter;
public _ZipAwait(IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, UniTask<TResult>> resultSelector, CancellationToken cancellationToken)
{
this.first = first;
this.second = second;
this.resultSelector = resultSelector;
this.cancellationToken = cancellationToken;
TaskTracker.TrackActiveTask(this, 3);
}
public TResult Current { get; private set; }
public UniTask<bool> MoveNextAsync()
{
completionSource.Reset();
if (firstEnumerator == null)
{
firstEnumerator = first.GetAsyncEnumerator(cancellationToken);
secondEnumerator = second.GetAsyncEnumerator(cancellationToken);
}
firstAwaiter = firstEnumerator.MoveNextAsync().GetAwaiter();
if (firstAwaiter.IsCompleted)
{
FirstMoveNextCore(this);
}
else
{
firstAwaiter.SourceOnCompleted(firstMoveNextCoreDelegate, this);
}
return new UniTask<bool>(this, completionSource.Version);
}
static void FirstMoveNextCore(object state)
{
var self = (_ZipAwait)state;
if (self.TryGetResult(self.firstAwaiter, out var result))
{
if (result)
{
try
{
self.secondAwaiter = self.secondEnumerator.MoveNextAsync().GetAwaiter();
}
catch (Exception ex)
{
self.completionSource.TrySetException(ex);
return;
}
if (self.secondAwaiter.IsCompleted)
{
SecondMoveNextCore(self);
}
else
{
self.secondAwaiter.SourceOnCompleted(secondMoveNextCoreDelegate, self);
}
}
else
{
self.completionSource.TrySetResult(false);
}
}
}
static void SecondMoveNextCore(object state)
{
var self = (_ZipAwait)state;
if (self.TryGetResult(self.secondAwaiter, out var result))
{
if (result)
{
try
{
self.resultAwaiter = self.resultSelector(self.firstEnumerator.Current, self.secondEnumerator.Current).GetAwaiter();
if (self.resultAwaiter.IsCompleted)
{
ResultAwaitCore(self);
}
else
{
self.resultAwaiter.SourceOnCompleted(resultAwaitCoreDelegate, self);
}
}
catch (Exception ex)
{
self.completionSource.TrySetException(ex);
}
}
else
{
self.completionSource.TrySetResult(false);
}
}
}
static void ResultAwaitCore(object state)
{
var self = (_ZipAwait)state;
if (self.TryGetResult(self.resultAwaiter, out var result))
{
self.Current = result;
if (self.cancellationToken.IsCancellationRequested)
{
self.completionSource.TrySetCanceled(self.cancellationToken);
}
else
{
self.completionSource.TrySetResult(true);
}
}
}
public async UniTask DisposeAsync()
{
TaskTracker.RemoveTracking(this);
if (firstEnumerator != null)
{
await firstEnumerator.DisposeAsync();
}
if (secondEnumerator != null)
{
await secondEnumerator.DisposeAsync();
}
}
}
}
internal sealed class ZipAwaitWithCancellation<TFirst, TSecond, TResult> : IUniTaskAsyncEnumerable<TResult>
{
readonly IUniTaskAsyncEnumerable<TFirst> first;
readonly IUniTaskAsyncEnumerable<TSecond> second;
readonly Func<TFirst, TSecond, CancellationToken, UniTask<TResult>> resultSelector;
public ZipAwaitWithCancellation(IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, CancellationToken, UniTask<TResult>> resultSelector)
{
this.first = first;
this.second = second;
this.resultSelector = resultSelector;
}
public IUniTaskAsyncEnumerator<TResult> GetAsyncEnumerator(CancellationToken cancellationToken = default)
{
return new _ZipAwaitWithCancellation(first, second, resultSelector, cancellationToken);
}
sealed class _ZipAwaitWithCancellation : MoveNextSource, IUniTaskAsyncEnumerator<TResult>
{
static readonly Action<object> firstMoveNextCoreDelegate = FirstMoveNextCore;
static readonly Action<object> secondMoveNextCoreDelegate = SecondMoveNextCore;
static readonly Action<object> resultAwaitCoreDelegate = ResultAwaitCore;
readonly IUniTaskAsyncEnumerable<TFirst> first;
readonly IUniTaskAsyncEnumerable<TSecond> second;
readonly Func<TFirst, TSecond, CancellationToken, UniTask<TResult>> resultSelector;
CancellationToken cancellationToken;
IUniTaskAsyncEnumerator<TFirst> firstEnumerator;
IUniTaskAsyncEnumerator<TSecond> secondEnumerator;
UniTask<bool>.Awaiter firstAwaiter;
UniTask<bool>.Awaiter secondAwaiter;
UniTask<TResult>.Awaiter resultAwaiter;
public _ZipAwaitWithCancellation(IUniTaskAsyncEnumerable<TFirst> first, IUniTaskAsyncEnumerable<TSecond> second, Func<TFirst, TSecond, CancellationToken, UniTask<TResult>> resultSelector, CancellationToken cancellationToken)
{
this.first = first;
this.second = second;
this.resultSelector = resultSelector;
this.cancellationToken = cancellationToken;
TaskTracker.TrackActiveTask(this, 3);
}
public TResult Current { get; private set; }
public UniTask<bool> MoveNextAsync()
{
completionSource.Reset();
if (firstEnumerator == null)
{
firstEnumerator = first.GetAsyncEnumerator(cancellationToken);
secondEnumerator = second.GetAsyncEnumerator(cancellationToken);
}
firstAwaiter = firstEnumerator.MoveNextAsync().GetAwaiter();
if (firstAwaiter.IsCompleted)
{
FirstMoveNextCore(this);
}
else
{
firstAwaiter.SourceOnCompleted(firstMoveNextCoreDelegate, this);
}
return new UniTask<bool>(this, completionSource.Version);
}
static void FirstMoveNextCore(object state)
{
var self = (_ZipAwaitWithCancellation)state;
if (self.TryGetResult(self.firstAwaiter, out var result))
{
if (result)
{
try
{
self.secondAwaiter = self.secondEnumerator.MoveNextAsync().GetAwaiter();
}
catch (Exception ex)
{
self.completionSource.TrySetException(ex);
return;
}
if (self.secondAwaiter.IsCompleted)
{
SecondMoveNextCore(self);
}
else
{
self.secondAwaiter.SourceOnCompleted(secondMoveNextCoreDelegate, self);
}
}
else
{
self.completionSource.TrySetResult(false);
}
}
}
static void SecondMoveNextCore(object state)
{
var self = (_ZipAwaitWithCancellation)state;
if (self.TryGetResult(self.secondAwaiter, out var result))
{
if (result)
{
try
{
self.resultAwaiter = self.resultSelector(self.firstEnumerator.Current, self.secondEnumerator.Current, self.cancellationToken).GetAwaiter();
if (self.resultAwaiter.IsCompleted)
{
ResultAwaitCore(self);
}
else
{
self.resultAwaiter.SourceOnCompleted(resultAwaitCoreDelegate, self);
}
}
catch (Exception ex)
{
self.completionSource.TrySetException(ex);
}
}
else
{
self.completionSource.TrySetResult(false);
}
}
}
static void ResultAwaitCore(object state)
{
var self = (_ZipAwaitWithCancellation)state;
if (self.TryGetResult(self.resultAwaiter, out var result))
{
self.Current = result;
if (self.cancellationToken.IsCancellationRequested)
{
self.completionSource.TrySetCanceled(self.cancellationToken);
}
else
{
self.completionSource.TrySetResult(true);
}
}
}
public async UniTask DisposeAsync()
{
TaskTracker.RemoveTracking(this);
if (firstEnumerator != null)
{
await firstEnumerator.DisposeAsync();
}
if (secondEnumerator != null)
{
await secondEnumerator.DisposeAsync();
}
}
}
}
}