// https://issues.dlang.org/show_bug.cgi?id=20051 struct Templ2(Args...) { } struct WillAlsoWork(alias T : Templ!Args, Args...) { alias A = Args[0]; } void main() { alias C2 = Templ2!int; static assert(!__traits(compiles, { alias B2 = WillAlsoWork!C2; B2.A a2; })); }