On Tuesday, 2 June 2020 at 10:18:51 UTC, kinke wrote:
> On Tuesday, 2 June 2020 at 06:19:56 UTC, Streaksu wrote:
>> Then is this a compiler bug? Or something I should approach by other coding practices. Thanks for the help so far btw.
>
> Yes, a compiler bug. You could help by trying to reduce it to a single-file test case and then filing a DMD issue about it.

The bug is reported, it can be checked at https://issues.dlang.org/show_bug.cgi?id=20897