https://issues.dlang.org/show_bug.cgi?id=20867

--- Comment #1 from mw <mingwu@gmail.com> ---
Created attachment 1792
  --> https://issues.dlang.org/attachment.cgi?id=1792&action=edit
class subtyping doen't work in separate files

Two files:

queue.d
t.d

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https://issues.dlang.org/show_bug.cgi?id=20867

Nick Treleaven <nick@geany.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |nick@geany.org
         Resolution|---                         |WONTFIX

--- Comment #2 from Nick Treleaven <nick@geany.org> ---
>     private T[] elements;
>     public: alias elements this;

You can't public alias a private symbol by design. You could make a property function as a workaround:

public @property _get() => elements;
alias _get this;

See also Issue 9809.

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