static int
clone_method(ID mid, const rb_method_entry_t *me, struct clone_method_data *data)
{
switch (me->type) {
case VM_METHOD_TYPE_ISEQ: {
VALUE newiseqval = rb_iseq_clone(me->body.iseq->self, data->klass);
rb_iseq_t *iseq;
GetISeqPtr(newiseqval, iseq);
rb_add_method(data->klass, mid, VM_METHOD_TYPE_ISEQ, iseq, me->flag);
break;
}
default:
rb_add_method_me(data->klass, mid, me, me->flag);
break;
}
return ST_CONTINUE;
}
static VALUE
rb_mod_modfunc(int argc, VALUE *argv, VALUE module)
{
int i;
ID id;
const rb_method_entry_t *me;
if (TYPE(module) != T_MODULE) {
rb_raise(rb_eTypeError, "module_function must be called for modules");
}
secure_visibility(module);
if (argc == 0) {
SCOPE_SET(NOEX_MODFUNC);
return module;
}
set_method_visibility(module, argc, argv, NOEX_PRIVATE);
for (i = 0; i < argc; i++) {
VALUE m = module;
id = rb_to_id(argv[i]);
for (;;) {
me = search_method(m, id);
if (me == 0) {
me = search_method(rb_cObject, id);
}
if (UNDEFINED_METHOD_ENTRY_P(me)) {
rb_print_undef(module, id, 0);
}
if (me->def->type != VM_METHOD_TYPE_ZSUPER) {
break; /* normal case: need not to follow 'super' link */
}
m = RCLASS_SUPER(m);
if (!m)
break;
}
rb_add_method_me(rb_singleton_class(module), id, me, NOEX_PUBLIC);
}
return module;
}
void
rb_alias(VALUE klass, ID name, ID def)
{
rb_method_entry_t *orig_me;
rb_frozen_class_p(klass);
if (klass == rb_cObject) {
rb_secure(4);
}
orig_me = search_method(klass, def);
if (UNDEFINED_METHOD_ENTRY_P(orig_me)) {
if ((TYPE(klass) != T_MODULE) ||
(orig_me = search_method(rb_cObject, def), UNDEFINED_METHOD_ENTRY_P(orig_me))) {
rb_print_undef(klass, def, 0);
}
}
rb_add_method_me(klass, name, orig_me, orig_me->flag);
}
