Hi,

I have found the following regression with the latest dmd:

https://run.dlang.io/is/4KdP5s


```
class A {
	class I { }
}

class B : A {
	C c;

	class II : I {
		void fun() {
			c = new C();
		}
	}
}

class C { }

void main() { }
```

When tried with the latest DMD it fails with

> onlineapp.d(10): Error: need this for c of type onlineapp.C

When I try "All dmd compilers" however I get

> All versions: Success and no output

So I can't pinpoint the exact version, although I assume it'd be the latest one. ldc and ldc-beta compile it without problems.

I think this a bug because if I remove the inheritance of II : I, then it works without issue.

A.

On Tuesday, 14 May 2019 at 15:35:15 UTC, Arafel wrote:
> Hi,
>
> I have found the following regression with the latest dmd:
>
> https://run.dlang.io/is/4KdP5s

Yep, got that thing blocking my upgrade as well.
The issue apparently is quite old though. Here is a bug report:
https://issues.dlang.org/show_bug.cgi?id=16215

On Tuesday, 14 May 2019 at 15:35:15 UTC, Arafel wrote:
> When I try "All dmd compilers" however I get
>
> > All versions: Success and no output
>

Yeah we need to manually bump this, I just did so for you:

https://github.com/dlang-tour/core-dreg/commit/b22c13446579ad127585de9edf93b4bda181e28e