The offending code base is a little big and hard to reduce. I'll try if code is required, but here is the gist of the problem:

This snippet of code in my project:

    ...
    alias tmp = genCode!T;
    enum str = tmp.str; // This line here
    ...

Generate a circular reference error.

However, if I do:

    ...
    alias tmp = genCode!T;
    pragma(msg, __traits(allMembers, tmp));
    enum str = tmp.str; // This line here
    ...

Then the error is gone.

Anyone has any idea what could the problem be?

On 26/08/2018 2:10 AM, Yuxuan Shui wrote:
> The offending code base is a little big and hard to reduce. I'll try if code is required, but here is the gist of the problem:
> 
> This snippet of code in my project:
> 
>      ...
>      alias tmp = genCode!T;
>      enum str = tmp.str; // This line here
>      ...
> 
> Generate a circular reference error.
> 
> However, if I do:
> 
>      ...
>      alias tmp = genCode!T;
>      pragma(msg, __traits(allMembers, tmp));
>      enum str = tmp.str; // This line here
>      ...
> 
> Then the error is gone.
> 
> Anyone has any idea what could the problem be?

If that pragma(msg) does indeed make it disappear (check -v to confirm), then its a bug.

On Saturday, 25 August 2018 at 14:13:18 UTC, rikki cattermole wrote:
> On 26/08/2018 2:10 AM, Yuxuan Shui wrote:
>> The offending code base is a little big and hard to reduce. I'll try if code is required, but here is the gist of the problem:
>> 
>> This snippet of code in my project:
>> 
>>      ...
>>      alias tmp = genCode!T;
>>      enum str = tmp.str; // This line here
>>      ...
>> 
>> Generate a circular reference error.
>> 
>> However, if I do:
>> 
>>      ...
>>      alias tmp = genCode!T;
>>      pragma(msg, __traits(allMembers, tmp));
>>      enum str = tmp.str; // This line here
>>      ...
>> 
>> Then the error is gone.
>> 
>> Anyone has any idea what could the problem be?
>
> If that pragma(msg) does indeed make it disappear (check -v to confirm), then its a bug.

Alright then. I'll spend sometime and see if I can make a minimal example.

Issue filed: https://issues.dlang.org/show_bug.cgi?id=19190