inout delegate

[Timon Gehr via Digitalmars-d]

On 02.10.2016 13:27, Manu via Digitalmars-d wrote:
> And what's the logic behind this:
>
> class Test
> {
>   int f() { return 10; }
>
>   static assert(is(typeof(&typeof(this).f) == int function())); // huh?
>
>   static void t()
>   {
>     // as expected:
>     f(); // error : need 'this' for 'f' of type 'int()'
>
>     // calling a method without a context pointer...
>     auto x = &f;
>     x(); // call the method with no context pointer, how is this okay?
>
>     pragma(msg, typeof(x)); // prints: int function()
>   }
> }
>
> If f() were supplied an argument, the function would receive the first
> arg as the context pointer, and the rest would be out by 1! O_o
> I don't see how this code can be acceptable?
>
> If such a thing (getting a static function pointer from a delegate)
> were to be supported, surely: is(typeof(&Test.f) == int
> function(Test)), though this is only valid for some (most) abi's.

This is a known issue: https://issues.dlang.org/show_bug.cgi?id=3720

(What I do is: typeof(&typeof(this).f) is int delegate(), but auto x = 
&f does not compile as the 'this' reference is missing.)