@Override public Object getRelementImpl(int index) { if (index == 0) { String name = getBuiltin().getName(); assert name == name.intern(); return RDataFactory.createSymbol(name); } else { throw RInternalError.unimplemented(); } }
@Override public final Object call(RArgsValuesAndNames args) { throw RInternalError.unimplemented("unimplemented external builtin: " + name); }