https://issues.dlang.org/show_bug.cgi?id=19517

Simon Naarmann <eiderdaus@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |eiderdaus@gmail.com

--- Comment #1 from Simon Naarmann <eiderdaus@gmail.com> ---
Right, this has nothing to do with Nullable in particular. This warning appeared in my existing codebase after I switched from DMD 2.083.2 to 2.084.0, and the codebase doesn't use Nullable.

The workaround is to remove the 'alias this' in S.

But it's very common to wrap class references in structs and then alias-this to the class. Would love to see a quick fix!

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https://issues.dlang.org/show_bug.cgi?id=19517

--- Comment #2 from hsteoh@quickfur.ath.cx ---
Found this (partial) workaround:

------
class C { /* ... */ }
struct S
{
    C c;
    auto opDispatch(string field)() inout
    {
        return mixin("c."~field);
    }
}
------

The key here is the `inout`.

This works as long as you don't expect to implicitly convert S to C. You can access class fields as if they were fields in S.

For implicit conversion, though, I haven't come up with a good workaround yet.

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https://issues.dlang.org/show_bug.cgi?id=19517

Iain Buclaw <ibuclaw@gdcproject.org> changed:

           What    |Removed                     |Added
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           Priority|P1                          |P3

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https://issues.dlang.org/show_bug.cgi?id=19517

--- Comment #3 from dlangBugzillaToGithub <robert.schadek@posteo.de> ---
THIS ISSUE HAS BEEN MOVED TO GITHUB

https://github.com/dlang/dmd/issues/17890

DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB

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