https://issues.dlang.org/show_bug.cgi?id=20093
--- Comment #1 from Adam D. Ruppe <[email protected]> --- I'll also note that `@(Attr) void foo()` is perfectly acceptable D code; to trigger this bug you do have to go through the mixin template or some other way of creating a TypeTuple. My expected behavior is that it expands the Attributes tuple inside the @() just like it would anywhere else, even if it has that type arg instead of just values. --
