You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
CrowdControl/Assets/Plugins/UniTask/Runtime/Linq/Contains.cs

50 lines
1.7 KiB
C#

using Cysharp.Threading.Tasks.Internal;
using System;
using System.Collections.Generic;
using System.Threading;
namespace Cysharp.Threading.Tasks.Linq
{
public static partial class UniTaskAsyncEnumerable
{
public static UniTask<Boolean> ContainsAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, TSource value, CancellationToken cancellationToken = default)
{
return ContainsAsync(source, value, EqualityComparer<TSource>.Default, cancellationToken);
}
public static UniTask<Boolean> ContainsAsync<TSource>(this IUniTaskAsyncEnumerable<TSource> source, TSource value, IEqualityComparer<TSource> comparer, CancellationToken cancellationToken = default)
{
Error.ThrowArgumentNullException(source, nameof(source));
Error.ThrowArgumentNullException(comparer, nameof(comparer));
return Contains.ContainsAsync(source, value, comparer, cancellationToken);
}
}
internal static class Contains
{
internal static async UniTask<bool> ContainsAsync<TSource>(IUniTaskAsyncEnumerable<TSource> source, TSource value, IEqualityComparer<TSource> comparer, CancellationToken cancellationToken)
{
var e = source.GetAsyncEnumerator(cancellationToken);
try
{
while (await e.MoveNextAsync())
{
if (comparer.Equals(value, e.Current))
{
return true;
}
}
return false;
}
finally
{
if (e != null)
{
await e.DisposeAsync();
}
}
}
}
}