The compiler can't "see" an inner class

[Simen Kjærås]

On Sunday, 27 October 2019 at 17:52:51 UTC, Emmanuelle wrote:
> Hello! See snippet:
>
> ---
> interface AST
> {
>     static interface Expr : AST
>     {
>         final static class Name : Expr
>         {
>             override void accept(AST.Visitor v) { 
> v.visitName(this); }
>         }
>     }
>
>     final static class Visitor
>     {
>         void visitName(AST.Expr.Name name);
>     }
>
>     void accept(AST.Visitor v);
> }
> ---
>
> If you try to compile that, dmd v2.088.0 complains:
>
> ---
> Error: no property Name for type onlineapp.AST.Expr
> ---
>
> How come? It's defined right there. I would really like some 
> pointers on this, thanks!

It's a bug:

interface A {
     interface B : A {
         class C : B {
         }
     }
     // Fails: no property 'C' for type 'foo.A.B'
     void inside(A.B.C c) { }
}
// Works
void outside(A.B.C c) { }

https://issues.dlang.org/show_bug.cgi?id=20329

--
   Simen