4 fail_compilation/ice9439.d(12): Error: calling non-static function `foo` requires an instance of type `Derived`
5 fail_compilation/ice9439.d(12): while evaluating: `static assert(foo())`
6 fail_compilation/ice9439.d(19): Error: template instance `ice9439.Base.boo!(foo)` error instantiating
16 class Derived
: Base
{
17 int foo() { return 1; }