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remove origin member to implement prepend from struct RClass; ref #2885

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instead origin is saved in ICLASS with MRB_FLAG_IS_ORIGIN set.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2015-09-05 02:01:02 +09:00
parent 8bb7962eb8
commit 2550edd570
4 changed files with 49 additions and 36 deletions
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src/kernel.c
+15 -14
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@@ -240,19 +240,12 @@ mrb_singleton_class_clone(mrb_state *mrb, mrb_value obj)
/* copy singleton(unnamed) class */
struct RClass *clone = (struct RClass*)mrb_obj_alloc(mrb, klass->tt, mrb->class_class);
if ((mrb_type(obj) == MRB_TT_CLASS) ||
(mrb_type(obj) == MRB_TT_SCLASS)) { /* BUILTIN_TYPE(obj) == T_CLASS */
if ((mrb_type(obj) == MRB_TT_CLASS) || (mrb_type(obj) == MRB_TT_SCLASS)) {
clone->c = clone;
}
else {
clone->c = mrb_singleton_class_clone(mrb, mrb_obj_value(klass));
}
if (klass->origin != klass)
clone->origin = klass->origin;
else
clone->origin = clone;
clone->super = klass->super;
if (klass->iv) {
mrb_iv_copy(mrb, mrb_obj_value(clone), mrb_obj_value(klass));
@@ -276,10 +269,18 @@ copy_class(mrb_state *mrb, mrb_value dst, mrb_value src)
struct RClass *sc = mrb_class_ptr(src);
/* if the origin is not the same as the class, then the origin and
the current class need to be copied */
if (sc->origin != sc) {
dc->origin = mrb_class_ptr(mrb_obj_dup(mrb, mrb_obj_value(sc->origin)));
} else {
dc->origin = dc;
if (sc->flags & MRB_FLAG_IS_PREPENDED) {
struct RClass *c0 = sc->super;
struct RClass *c1 = dc;
/* copy prepended iclasses */
while (!(c0->flags & MRB_FLAG_IS_ORIGIN)) {
c1->super = mrb_class_ptr(mrb_obj_dup(mrb, mrb_obj_value(c0)));
c1 = c1->super;
c0 = c0->super;
}
c1->super = mrb_class_ptr(mrb_obj_dup(mrb, mrb_obj_value(c0)));
c1->super->flags |= MRB_FLAG_IS_ORIGIN;
}
dc->mt = kh_copy(mt, mrb, sc->mt);
dc->super = sc->super;
@@ -657,8 +658,8 @@ mrb_class_instance_method_list(mrb_state *mrb, mrb_bool recur, struct RClass* kl
struct RClass* oldklass;
khash_t(st)* set = kh_init(st, mrb);
if (!recur && klass->origin != klass) {
klass = klass->origin;
if (!recur && (klass->flags & MRB_FLAG_IS_PREPENDED)) {
MRB_CLASS_ORIGIN(klass);
prepended = 1;
}