Fixed a bug with modules prepended many times.
Adjust insertion point in `fix_prepend_module()`.
MODIFY
src/class.c
src/class.c
@@ -1449,11 +1449,15 @@ fix_prepend_module(mrb_state *mrb, struct RBasic *obj, void *data)
if (c->tt == MRB_TT_CLASS || c->tt == MRB_TT_MODULE) {
struct RClass *p = c->super;
+ struct RClass *ins_pos = c;
while (p) {
if (c == m[0]) break;
+ if (p == m[0]->super->c) {
+ ins_pos = c;
+ }
if (p->tt == MRB_TT_CLASS) break;
if (p->c == m[0]) {
- include_module_at(mrb, c, c, m[1], 0);
+ include_module_at(mrb, ins_pos, ins_pos, m[1], 0);
break;
}
c = p;

Fixed a bug with modules prepended many times.

Adjust insertion point in `fix_prepend_module()`.