Target-typed interfaces in anonymous types

[RenderMichael]

Anonymous types add a lot of convenience when you just want an ad-hoc type quickly.

Allowing anonymous types to meet interface criteria based on the target of the type, sounds like a nice convenience.

M(new { Context = "" }); // this could be made work

void M(I i) { }

public interface I
{
    string Context { get; }
}

[TahirAhmadov]

#4301
#7719
#7726

[DavidArno]

This already works, so doesn't require a language change, and does exactly what you want in fewer lines of code:

M(new(Context = "" )); 

void M(R r) { }

public record R(string Context);

[colejohnson66]

That's a record, not an interface

[RenderMichael]

This resembles my minimal repro but it can’t do what this feature could.

[DavidArno]

This resembles my minimal repro but it can’t do what this feature could.

I'll take your word for it 😃