holder.currentCompletor = null;
COMPLETION_CASE_FOLD = runtime.getNil();
RubyModule mReadline = runtime.defineModule("Readline");
mReadline.dataWrapStruct(holder);
mReadline.defineAnnotatedMethods(Readline.class);
IRubyObject hist = runtime.getObject().callMethod(runtime.getCurrentContext(), "new");
mReadline.fastSetConstant("HISTORY", hist);
hist.getSingletonClass().includeModule(runtime.getEnumerable());