Compiler Happily Emits Task<void>

[SLaks]

Source:

var t = Task.Run(() => {
    return Console.Beep();
});

This should not compile!

The IDE also happily reports that t is a Task<void>.
Running it throws a TypeLoadException: The generic type 'System.Func1' was used with an invalid instantiation in assembly mscorlib`

[AlgorithmsAreCool]

Despite this being an obvious bug, i wish it was legal to use void as a generic parameter.

[SLaks]

@AlgorithmsAreCool Feel free to file a feature request in dotnet/coreclr.

[RedwoodForest]

@SLaks @AlgorithmsAreCool This is suggested in #234.

[theoy]

Nice catch! :)

[AdamSpeight2008]

@SLaks

Let's say the CLR allowed Func<Void> how would it work with Action<>, especially overload resolution?

[SLaks]

@AdamSpeight2008 Action would take precendence, just like Func<int> vs delegate int MyDelegate();.

[gafter]

@AlekseyTs Can you "Verify" this please?