nameof cant handle generic with constraint

[puschie286]

Description

nameof can be used for generic types - but it fails to access interfaces on generic types ( it ignores constraints on generic types ).
This works fine with the actual implementaion

public class Example<Template> where Template : ITestValue
{
	public string GetTemplateValueName()
	{
		//return nameof( Template );
		
		return nameof( Template.Test ); // <-- compiler error: 'Template' is a type parameter, which is not valid in the given context
	}
}

public interface ITestValue
{
	public int Test { get; set; }
}

dotnet fiddle: https://dotnetfiddle.net/2qIrI8

Configuration

Checked on .NET 6 and Roslyn 4.0

Other information

You can foward this to the implementation as a parameter
nameof( Implementation.Test )

[CyrusNajmabadi]

This doesn't appear to be wrong. Template is a type parameter, and it doesn't have such a member. You'd have to propose a language change to allow this. Note: you can just write nameof(ITestValue.Test) instead here.

[jnm2]

In fact, there's an argument to be made that nameof(ITestValue.Test) is preferred over nameof(T.Test) the same way that nameof(BaseClass.Foo) is preferred over nameof(DerivedClass.Foo).