Cleanup and simplification.

Author: electricessence

ActionRunner.cs

@@ -15,10 +15,10 @@ public ActionRunner(Action action, TaskScheduler? scheduler = default)
 		}
 
 		public static ActionRunner Create(Action action, TaskScheduler? scheduler = default)
-			=> new ActionRunner(action, scheduler);
+			=> new(action, scheduler);
 
 		public static ActionRunner Create<T>(Func<T> action, TaskScheduler? scheduler = default)
-			=> new ActionRunner(() => { action(); }, scheduler);
+			=> new(() => { action(); }, scheduler);
 
 		Action? _action;
 		// ReSharper disable once NotAccessedField.Global

CancellableTask.cs

@@ -9,9 +9,7 @@ namespace Open.Threading.Tasks
 	/// </summary>
 	public class CancellableTask : Task, ICancellable
 	{
-#pragma warning disable CA2213 // Is disposed in Cancel method.
 		CancellationTokenSource? TokenSource;
-#pragma warning restore CA2213
 
 		public bool Cancel(bool onlyIfNotRunning)
 		{

ICancellable.cs

@@ -3,7 +3,6 @@
 
 namespace Open.Threading.Tasks
 {
-	[SuppressMessage("ReSharper", "UnusedMemberInSuper.Global")]
 	public interface ICancellable : IDisposable
 	{
 		/// <summary>

Open.Threading.Tasks.csproj

@@ -27,13 +27,6 @@
 		<PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
 	</ItemGroup>
 
-	<ItemGroup>
-		<PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="3.0.0">
-			<PrivateAssets>all</PrivateAssets>
-			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-		</PackageReference>
-	</ItemGroup>
-
 	<ItemGroup>
 		<None Remove=".editorconfig" />
 		<None Remove=".git" />

TaskExtensions.cs

@@ -12,21 +12,15 @@ public static bool IsActive(this Task target)
 		{
 			if (target is null) throw new ArgumentNullException(nameof(target));
 
-			switch (target.Status)
+			return target.Status switch
 			{
-				case TaskStatus.Created:
-				case TaskStatus.Running:
-				case TaskStatus.WaitingForActivation:
-				case TaskStatus.WaitingForChildrenToComplete:
-				case TaskStatus.WaitingToRun:
-					return true;
-					//case TaskStatus.Canceled:
-					//case TaskStatus.Faulted:
-					//case TaskStatus.RanToCompletion:
-					//	return false;
-			}
-
-			return false;
+				TaskStatus.Created or
+				TaskStatus.Running or
+				TaskStatus.WaitingForActivation or
+				TaskStatus.WaitingForChildrenToComplete or
+				TaskStatus.WaitingToRun => true,
+				_ => false,
+			};
 		}
 
 		/// <summary>

TimeoutHandler.cs

@@ -6,21 +6,20 @@ namespace Open.Threading.Tasks
 {
 	public sealed class TimeoutHandler : IDisposable
 	{
-#pragma warning disable CA2213 // Is disposed properly.
 		CancellationTokenSource? TokenSource;
-#pragma warning restore CA2213
+
 		TimeoutHandler(TimeSpan delay, Action<TimeSpan> onTimeout)
 		{
 			TokenSource = new CancellationTokenSource();
 			Task.Delay(delay, TokenSource.Token).ContinueWith(t =>
 			{
-				Interlocked.Exchange(ref TokenSource, null)?.Dispose();
+				Interlocked.Exchange(ref TokenSource, null!)?.Dispose();
 				if (!t.IsCanceled) onTimeout(delay);
 			});
 		}
 
 		public static TimeoutHandler New(TimeSpan delay, Action<TimeSpan> onTimeout)
-			=> new TimeoutHandler(delay, onTimeout);
+			=> new(delay, onTimeout);
 
 		public static bool New(TimeSpan delay, out IDisposable timeout, Action<TimeSpan> onTimeout)
 		{