Lindhart.Analyser.MissingAwaitWarning 2.0.0

There is a newer prerelease version of this package available.
See the version list below for details.
Install-Package Lindhart.Analyser.MissingAwaitWarning -Version 2.0.0
dotnet add package Lindhart.Analyser.MissingAwaitWarning --version 2.0.0
<PackageReference Include="Lindhart.Analyser.MissingAwaitWarning" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Lindhart.Analyser.MissingAwaitWarning --version 2.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Lindhart.Analyser.MissingAwaitWarning, 2.0.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Lindhart.Analyser.MissingAwaitWarning as a Cake Addin
#addin nuget:?package=Lindhart.Analyser.MissingAwaitWarning&version=2.0.0

// Install Lindhart.Analyser.MissingAwaitWarning as a Cake Tool
#tool nuget:?package=Lindhart.Analyser.MissingAwaitWarning&version=2.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

unused-task-warning

When using dependency injection and async-await pattern it is possible to end up with an interface with a method that returns a Task. If this interface method is used in a synchronous method there is a likelihood that it will erroneously be run as a fire and forget method (which will not trigger inbuilt warning CS4014). In this situation this analyser generates a warning.

Can both be used as a Visual Studio extension or preferably as a project analyser available from NuGet.

Example:

using System.Threading.Tasks;

namespace AsyncAwaitProblem
{
	public interface ICallee
	{
		bool ProblemSolved { get; }
		Task SolveProblemAsync();
	}

	public class Callee : ICallee
	{
		public bool ProblemSolved { get; set; }

		public async Task SolveProblemAsync()
		{
			await Task.Delay(10);
			ProblemSolved = true;
		}
	}
	
	public class Caller
	{
		public bool DoCall()
		{
			ICallee xxx = new Callee();

			// This analyser will give a warning at the following line
			xxx.SolveProblemAsync(); // This is most likely an undesired fire and forget. 

			return xxx.ProblemSolved; // Will return false - we expected it to return true
		}
	}
}

Note that this analyser currently only checks for the currently known awaitable types. If another 'Awaitable' type is returned this analyser will not give the warning. This might be fixed in a future version.

There are no supported framework assets in this package.

Learn more about Target Frameworks and .NET Standard.

  • .NETStandard 2.0

    • No dependencies.

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GitHub repositories (3)

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Version Downloads Last updated
2.1.0-beta 5,578 8/11/2021
2.0.0 461,934 12/7/2020
2.0.0-beta2 492 10/26/2020
2.0.0-beta 287 10/26/2020
1.2.1 42,518 9/28/2020
1.2.1-beta 527 5/8/2020
1.2.0 320,012 6/6/2019
1.2.0-beta 485 4/16/2019
1.0.1 158,360 8/10/2018
1.0.0 34,247 1/6/2018

Package is no longer signed. Upgraded target framework from .net Standard 1.3 -> 2.0. Changed from license file to license expression (still MIT license). Added more types.