refactor constify most of rb_method_entry_t

Now that we have eliminated most destructive operations over the
rb_method_entry_t / rb_callable_method_entry_t, let's make them
mostly immutabe and mark them const.

One exception is rb_export_method(), which destructively modifies
visibilities of method entries.  I have left that operation as is
because I suspect that destructiveness is the nature of that
function.
This commit is contained in:
卜部昌平 2019-09-26 10:22:01 +09:00
Родитель 6c6a25feca
Коммит dd883de5ba
9 изменённых файлов: 88 добавлений и 109 удалений

Просмотреть файл

@ -965,7 +965,7 @@ static enum rb_id_table_iterator_result
inject_refined_method(ID *key, VALUE *value, void *data, int _)
{
const tuple *ptr = data;
const rb_method_entry_t *me = *(rb_method_entry_t **) value;
const rb_method_entry_t *me = *(const rb_method_entry_t **) value;
const rb_method_entry_t *orig_me = me->def->body.refined.orig_me;
const rb_method_entry_t *new_me =
rb_method_entry_from_template(
@ -982,8 +982,8 @@ inject_refined_method(ID *key, VALUE *value, void *data, int _)
static enum rb_id_table_iterator_result
move_refined_method(ID key, VALUE value, void *data)
{
const tuple *ptr = data;
rb_method_entry_t *me = (rb_method_entry_t *) value;
const tuple *ptr = data;
const rb_method_entry_t *me = (const rb_method_entry_t *) value;
if (me->def->type == VM_METHOD_TYPE_REFINED) {
if (me->def->body.refined.orig_me) {

Просмотреть файл

@ -123,7 +123,7 @@ method_coverage_i(void *vstart, void *vend, size_t stride, void *data)
for (v = (VALUE)vstart; v != (VALUE)vend; v += stride) {
if (RB_TYPE_P(v, T_IMEMO) && imemo_type(v) == imemo_ment) {
const rb_method_entry_t *me = (rb_method_entry_t *) v;
const rb_method_entry_t *me = (const rb_method_entry_t *) v;
VALUE path, first_lineno, first_column, last_lineno, last_column;
VALUE data[5], ncoverage, methods;
VALUE methods_id = ID2SYM(rb_intern("methods"));

2
gc.c
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@ -7829,7 +7829,7 @@ void rb_update_st_references(struct st_table *ht)
}
static void
gc_ref_update_method_entry(rb_objspace_t *objspace, rb_method_entry_t *me)
gc_ref_update_method_entry(rb_objspace_t *objspace, const rb_method_entry_t *me)
{
const rb_method_definition_t *def = me->def;

Просмотреть файл

@ -49,53 +49,24 @@ typedef struct rb_cref_struct {
/* method data type */
typedef struct rb_method_entry_struct {
VALUE flags;
VALUE defined_class;
const VALUE flags;
const VALUE defined_class;
struct rb_method_definition_struct * const def;
ID called_id;
VALUE owner;
const ID called_id;
const VALUE owner;
} rb_method_entry_t;
typedef struct rb_callable_method_entry_struct { /* same fields with rb_method_entry_t */
VALUE flags;
const VALUE flags;
const VALUE defined_class;
struct rb_method_definition_struct * const def;
ID called_id;
const ID called_id;
const VALUE owner;
} rb_callable_method_entry_t;
#define METHOD_ENTRY_VISI(me) (rb_method_visibility_t)(((me)->flags & (IMEMO_FL_USER0 | IMEMO_FL_USER1)) >> (IMEMO_FL_USHIFT+0))
#define METHOD_ENTRY_BASIC(me) (int) (((me)->flags & (IMEMO_FL_USER2 )) >> (IMEMO_FL_USHIFT+2))
static inline void
METHOD_ENTRY_VISI_SET(rb_method_entry_t *me, rb_method_visibility_t visi)
{
VM_ASSERT((int)visi >= 0 && visi <= 3);
me->flags = (me->flags & ~(IMEMO_FL_USER0 | IMEMO_FL_USER1)) | (visi << (IMEMO_FL_USHIFT+0));
}
static inline void
METHOD_ENTRY_BASIC_SET(rb_method_entry_t *me, unsigned int basic)
{
VM_ASSERT(basic <= 1);
me->flags = (me->flags & ~(IMEMO_FL_USER2 )) | (basic << (IMEMO_FL_USHIFT+2));
}
static inline void
METHOD_ENTRY_FLAGS_SET(rb_method_entry_t *me, rb_method_visibility_t visi, unsigned int basic)
{
VM_ASSERT((int)visi >= 0 && visi <= 3);
VM_ASSERT(basic <= 1);
me->flags =
(me->flags & ~(IMEMO_FL_USER0|IMEMO_FL_USER1|IMEMO_FL_USER2)) |
((visi << (IMEMO_FL_USHIFT+0)) | (basic << (IMEMO_FL_USHIFT+2)));
}
static inline void
METHOD_ENTRY_FLAGS_COPY(rb_method_entry_t *dst, const rb_method_entry_t *src)
{
dst->flags =
(dst->flags & ~(IMEMO_FL_USER0|IMEMO_FL_USER1|IMEMO_FL_USER2)) |
(src->flags & (IMEMO_FL_USER0|IMEMO_FL_USER1|IMEMO_FL_USER2));
}
typedef enum {
VM_METHOD_TYPE_ISEQ, /*!< Ruby method */
VM_METHOD_TYPE_CFUNC, /*!< C method */
@ -190,7 +161,7 @@ void rb_add_method_iseq(VALUE klass, ID mid, const rb_iseq_t *iseq, rb_cref_t *c
void rb_add_refined_method_entry(VALUE refined_class, ID mid);
void rb_add_method(VALUE klass, ID mid, rb_method_type_t type, void *option, rb_method_visibility_t visi);
rb_method_entry_t *rb_method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *, rb_method_visibility_t noex);
const rb_method_entry_t *rb_method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *, rb_method_visibility_t noex);
const rb_method_entry_t *rb_method_entry_from_template(const rb_method_entry_t *template, const void *opts);
const rb_method_entry_t *rb_method_entry_for_missing(ID mid, VALUE klass);

8
proc.c
Просмотреть файл

@ -1426,7 +1426,7 @@ bm_compact(void *ptr)
UPDATE_REFERENCE(data->recv);
UPDATE_REFERENCE(data->klass);
UPDATE_REFERENCE(data->iclass);
UPDATE_TYPED_REFERENCE(rb_method_entry_t *, data->me);
UPDATE_TYPED_REFERENCE(const rb_method_entry_t *, data->me);
}
static size_t
@ -1519,7 +1519,7 @@ mnew_internal(const rb_method_entry_t *me, VALUE klass, VALUE iclass,
if (me->defined_class) {
VALUE klass = RCLASS_SUPER(RCLASS_ORIGIN(me->defined_class));
id = me->def->original_id;
me = (rb_method_entry_t *)rb_callable_method_entry_with_refinements(klass, id, &iclass);
me = (const rb_method_entry_t *)rb_callable_method_entry_with_refinements(klass, id, &iclass);
}
else {
VALUE klass = RCLASS_SUPER(me->owner);
@ -1557,7 +1557,7 @@ mnew(VALUE klass, VALUE obj, ID id, VALUE mclass, int scope)
me = rb_method_entry_with_refinements(klass, id, &iclass);
}
else {
me = (rb_method_entry_t *)rb_callable_method_entry_with_refinements(klass, id, &iclass);
me = (const rb_method_entry_t *)rb_callable_method_entry_with_refinements(klass, id, &iclass);
}
return mnew_from_me(me, klass, iclass, obj, id, mclass, scope);
}
@ -2947,7 +2947,7 @@ method_super_method(VALUE method)
super_class = RCLASS_SUPER(RCLASS_ORIGIN(iclass));
mid = data->me->called_id;
if (!super_class) return Qnil;
me = (rb_method_entry_t *)rb_callable_method_entry_with_refinements(super_class, mid, &iclass);
me = (const rb_method_entry_t *)rb_callable_method_entry_with_refinements(super_class, mid, &iclass);
if (!me) return Qnil;
return mnew_internal(me, me->owner, iclass, data->recv, mid, rb_obj_class(method), FALSE, FALSE);
}

2
vm.c
Просмотреть файл

@ -1595,7 +1595,7 @@ static enum rb_id_table_iterator_result
check_redefined_method(ID mid, VALUE value, void *data)
{
VALUE klass = (VALUE)data;
const rb_method_entry_t *me = (rb_method_entry_t *)value;
const rb_method_entry_t *me = (const rb_method_entry_t *)value;
const rb_method_entry_t *newme = rb_method_entry(klass, mid);
if (newme != me) rb_vm_check_redefinition_opt_method(me, me->owner);

Просмотреть файл

@ -1349,7 +1349,7 @@ frame2iseq(VALUE frame)
return (const rb_iseq_t *)frame;
case imemo_ment:
{
const rb_callable_method_entry_t *cme = (rb_callable_method_entry_t *)frame;
const rb_callable_method_entry_t *cme = (const rb_callable_method_entry_t *)frame;
switch (cme->def->type) {
case VM_METHOD_TYPE_ISEQ:
return cme->def->body.iseq.iseqptr;
@ -1405,7 +1405,7 @@ frame2klass(VALUE frame)
if (frame == Qnil) return Qnil;
if (RB_TYPE_P(frame, T_IMEMO)) {
const rb_callable_method_entry_t *cme = (rb_callable_method_entry_t *)frame;
const rb_callable_method_entry_t *cme = (const rb_callable_method_entry_t *)frame;
if (imemo_type(frame) == imemo_ment) {
return cme->defined_class;

Просмотреть файл

@ -578,8 +578,8 @@ vm_getspecial(const rb_execution_context_t *ec, const VALUE *lep, rb_num_t key,
return val;
}
PUREFUNC(static rb_callable_method_entry_t *check_method_entry(VALUE obj, int can_be_svar));
static rb_callable_method_entry_t *
PUREFUNC(static const rb_callable_method_entry_t *check_method_entry(VALUE obj, int can_be_svar));
static const rb_callable_method_entry_t *
check_method_entry(VALUE obj, int can_be_svar)
{
if (obj == Qfalse) return NULL;
@ -590,7 +590,7 @@ check_method_entry(VALUE obj, int can_be_svar)
switch (imemo_type(obj)) {
case imemo_ment:
return (rb_callable_method_entry_t *)obj;
return (const rb_callable_method_entry_t *)obj;
case imemo_cref:
return NULL;
case imemo_svar:
@ -609,7 +609,7 @@ MJIT_STATIC const rb_callable_method_entry_t *
rb_vm_frame_method_entry(const rb_control_frame_t *cfp)
{
const VALUE *ep = cfp->ep;
rb_callable_method_entry_t *me;
const rb_callable_method_entry_t *me;
while (!VM_ENV_LOCAL_P(ep)) {
if ((me = check_method_entry(ep[VM_ENV_DATA_INDEX_ME_CREF], FALSE)) != NULL) return me;
@ -620,7 +620,7 @@ rb_vm_frame_method_entry(const rb_control_frame_t *cfp)
}
static rb_cref_t *
method_entry_cref(rb_callable_method_entry_t *me)
method_entry_cref(const rb_callable_method_entry_t *me)
{
switch (me->def->type) {
case VM_METHOD_TYPE_ISEQ:
@ -644,7 +644,7 @@ check_cref(VALUE obj, int can_be_svar)
switch (imemo_type(obj)) {
case imemo_ment:
return method_entry_cref((rb_callable_method_entry_t *)obj);
return method_entry_cref((const rb_callable_method_entry_t *)obj);
case imemo_cref:
return (rb_cref_t *)obj;
case imemo_svar:

Просмотреть файл

@ -41,7 +41,7 @@ struct cache_entry {
rb_serial_t method_state;
rb_serial_t class_serial;
ID mid;
rb_method_entry_t* me;
const rb_method_entry_t* me;
VALUE defined_class;
};
@ -167,17 +167,17 @@ rb_free_method_entry(const rb_method_entry_t *me)
}
}
static inline rb_method_entry_t *search_method(VALUE klass, ID id, VALUE *defined_class_ptr);
static inline const rb_method_entry_t *search_method(VALUE klass, ID id, VALUE *defined_class_ptr);
extern int rb_method_definition_eq(const rb_method_definition_t *d1, const rb_method_definition_t *d2);
static inline rb_method_entry_t *
static inline const rb_method_entry_t *
lookup_method_table(VALUE klass, ID id)
{
st_data_t body;
struct rb_id_table *m_tbl = RCLASS_M_TBL(klass);
if (rb_id_table_lookup(m_tbl, id, &body)) {
return (rb_method_entry_t *) body;
return (const rb_method_entry_t *) body;
}
else {
return 0;
@ -477,15 +477,15 @@ method_definition_addref_complement(rb_method_definition_t *def)
return def;
}
static rb_method_entry_t *
static const rb_method_entry_t *
rb_method_entry_alloc(VALUE flags, ID called_id, VALUE owner, VALUE defined_class, const rb_method_definition_t *def)
{
rb_method_entry_t tmp = { flags, };
rb_method_entry_t *me = (rb_method_entry_t *)rb_imemo_new(imemo_ment, (VALUE)def, (VALUE)called_id, owner, defined_class);
METHOD_ENTRY_FLAGS_COPY(me, &tmp);
if (def) {
method_definition_reset(me);
}
VALUE v = rb_imemo_new(imemo_ment, (VALUE)def, (VALUE)called_id, owner, defined_class);
RBASIC(v)->flags =
(RBASIC(v)->flags & ~(IMEMO_FL_USER0|IMEMO_FL_USER1|IMEMO_FL_USER2)) |
(flags & (IMEMO_FL_USER0|IMEMO_FL_USER1|IMEMO_FL_USER2));
const rb_method_entry_t *me = (void *)v;
method_definition_reset(me);
return me;
}
@ -506,9 +506,8 @@ filter_defined_class(VALUE klass)
static inline VALUE
method_entry_flags(rb_method_visibility_t visi)
{
rb_method_entry_t tmp = { 0, };
METHOD_ENTRY_FLAGS_SET(&tmp, visi, !ruby_running);
return tmp.flags;
return (visi << (IMEMO_FL_USHIFT+0)) |
((!ruby_running) << (IMEMO_FL_USHIFT+2));
}
MJIT_FUNC_EXPORTED const rb_method_entry_t *
@ -556,7 +555,6 @@ MJIT_FUNC_EXPORTED const rb_callable_method_entry_t *
rb_method_entry_complement_defined_class(const rb_method_entry_t *src_me, ID called_id, VALUE defined_class)
{
const rb_method_definition_t *def = src_me->def;
rb_method_entry_t *me;
if (!src_me->defined_class &&
def->type == VM_METHOD_TYPE_REFINED &&
@ -570,24 +568,26 @@ rb_method_entry_complement_defined_class(const rb_method_entry_t *src_me, ID cal
&(rb_method_refined_t) {
.orig_me = orig_me,
.owner = orig_me->owner});
}
else {
def = method_definition_addref_complement((rb_method_definition_t *)def);
def = method_definition_addref_complement((rb_method_definition_t *)def);
}
me = rb_method_entry_alloc(
src_me->flags,
called_id,
src_me->owner,
defined_class,
def);
const rb_method_entry_t *me =
rb_method_entry_alloc(
src_me->flags,
called_id,
src_me->owner,
defined_class,
def);
VM_ASSERT(RB_TYPE_P(me->owner, T_MODULE));
return (rb_callable_method_entry_t *)me;
return (const rb_callable_method_entry_t *)me;
}
static rb_method_entry_t*
make_method_entry_refined(VALUE owner, rb_method_entry_t *me)
static const rb_method_entry_t*
make_method_entry_refined(VALUE owner, const rb_method_entry_t *me)
{
if (me->def->type == VM_METHOD_TYPE_REFINED) {
return me;
@ -620,7 +620,7 @@ make_method_entry_refined(VALUE owner, rb_method_entry_t *me)
void
rb_add_refined_method_entry(VALUE refined_class, ID mid)
{
rb_method_entry_t *me = lookup_method_table(refined_class, mid);
const rb_method_entry_t *me = lookup_method_table(refined_class, mid);
if (me) {
me = make_method_entry_refined(refined_class, me);
@ -654,11 +654,10 @@ check_override_opt_method(VALUE klass, VALUE arg)
* If def is given (!= NULL), then just use it and ignore original_id and otps.
* If not given, then make a new def with original_id and opts.
*/
static rb_method_entry_t *
static const rb_method_entry_t *
rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibility_t visi,
rb_method_type_t type, const rb_method_definition_t *def, ID original_id, void *opts)
{
rb_method_entry_t *me;
struct rb_id_table *mtbl;
st_data_t data;
int make_refined = 0;
@ -686,7 +685,7 @@ rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibil
rb_add_refined_method_entry(refined_class, mid);
}
if (type == VM_METHOD_TYPE_REFINED) {
rb_method_entry_t *old_me = lookup_method_table(RCLASS_ORIGIN(klass), mid);
const rb_method_entry_t *old_me = lookup_method_table(RCLASS_ORIGIN(klass), mid);
if (old_me) rb_vm_check_redefinition_opt_method(old_me, klass);
}
else {
@ -696,8 +695,8 @@ rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibil
/* check re-definition */
if (rb_id_table_lookup(mtbl, mid, &data)) {
rb_method_entry_t *old_me = (rb_method_entry_t *)data;
const rb_method_definition_t *old_def = old_me->def;
const rb_method_entry_t *old_me = (const rb_method_entry_t *)data;
const rb_method_definition_t *old_def = old_me->def;
if (rb_method_definition_eq(old_def, def)) return old_me;
rb_vm_check_redefinition_opt_method(old_me, klass);
@ -737,12 +736,13 @@ rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibil
if (!def) {
def = rb_method_definition_create(type, original_id, opts);
}
me = rb_method_entry_alloc(
method_entry_flags(visi),
mid,
defined_class,
filter_defined_class(defined_class),
def);
const rb_method_entry_t *me =
rb_method_entry_alloc(
method_entry_flags(visi),
mid,
defined_class,
filter_defined_class(defined_class),
def);
rb_clear_method_cache_by_class(klass);
@ -816,17 +816,17 @@ rb_add_method_iseq(VALUE klass, ID mid, const rb_iseq_t *iseq, rb_cref_t *cref,
rb_add_method(klass, mid, VM_METHOD_TYPE_ISEQ, &iseq_body, visi);
}
static rb_method_entry_t *
static const rb_method_entry_t *
method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *me,
rb_method_visibility_t visi, VALUE defined_class)
{
rb_method_entry_t *newme = rb_method_entry_make(klass, mid, defined_class, visi,
const rb_method_entry_t *newme = rb_method_entry_make(klass, mid, defined_class, visi,
me->def->type, method_definition_addref(me->def), 0, NULL);
method_added(klass, mid);
return newme;
}
rb_method_entry_t *
const rb_method_entry_t *
rb_method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *me, rb_method_visibility_t visi)
{
return method_entry_set(klass, mid, me, visi, klass);
@ -860,10 +860,10 @@ rb_get_alloc_func(VALUE klass)
return 0;
}
static inline rb_method_entry_t*
static inline const rb_method_entry_t*
search_method(VALUE klass, ID id, VALUE *defined_class_ptr)
{
rb_method_entry_t *me;
const rb_method_entry_t *me;
for (; klass; klass = RCLASS_SUPER(klass)) {
RB_DEBUG_COUNTER_INC(mc_search_super);
@ -887,12 +887,12 @@ rb_method_entry_at(VALUE klass, ID id)
* if you need method entry with method cache (normal case), use
* rb_method_entry() simply.
*/
static rb_method_entry_t *
static const rb_method_entry_t *
method_entry_get_without_cache(VALUE klass, ID id,
VALUE *defined_class_ptr)
{
VALUE defined_class;
rb_method_entry_t *me = search_method(klass, id, &defined_class);
const rb_method_entry_t *me = search_method(klass, id, &defined_class);
if (ruby_running) {
if (OPT_GLOBAL_METHOD_CACHE) {
@ -924,11 +924,11 @@ method_entry_get_without_cache(VALUE klass, ID id,
}
static void
verify_method_cache(VALUE klass, ID id, VALUE defined_class, rb_method_entry_t *me)
verify_method_cache(VALUE klass, ID id, VALUE defined_class, const rb_method_entry_t *me)
{
if (!VM_DEBUG_VERIFY_METHOD_CACHE) return;
VALUE actual_defined_class;
rb_method_entry_t *actual_me =
const rb_method_entry_t *actual_me =
method_entry_get_without_cache(klass, id, &actual_defined_class);
if (me != actual_me || defined_class != actual_defined_class) {
@ -936,7 +936,7 @@ verify_method_cache(VALUE klass, ID id, VALUE defined_class, rb_method_entry_t *
}
}
static rb_method_entry_t *
static const rb_method_entry_t *
method_entry_get(VALUE klass, ID id, VALUE *defined_class_ptr)
{
struct cache_entry *ent;
@ -977,7 +977,7 @@ prepare_callable_method_entry(VALUE defined_class, ID id, const rb_method_entry_
if (mtbl && rb_id_table_lookup(mtbl, id, (VALUE *)&me)) {
RB_DEBUG_COUNTER_INC(mc_cme_complement_hit);
cme = (rb_callable_method_entry_t *)me;
cme = (const rb_callable_method_entry_t *)me;
VM_ASSERT(callable_method_entry_p(cme));
}
else {
@ -1001,7 +1001,7 @@ MJIT_FUNC_EXPORTED const rb_callable_method_entry_t *
rb_callable_method_entry(VALUE klass, ID id)
{
VALUE defined_class;
rb_method_entry_t *me = method_entry_get(klass, id, &defined_class);
const rb_method_entry_t *me = method_entry_get(klass, id, &defined_class);
return prepare_callable_method_entry(defined_class, id, me);
}
@ -1115,7 +1115,7 @@ static void
remove_method(VALUE klass, ID mid)
{
VALUE data;
rb_method_entry_t *me = 0;
const rb_method_entry_t *me = NULL;
VALUE self = klass;
klass = RCLASS_ORIGIN(klass);
@ -1125,7 +1125,7 @@ remove_method(VALUE klass, ID mid)
}
if (!rb_id_table_lookup(RCLASS_M_TBL(klass), mid, &data) ||
!(me = (rb_method_entry_t *)data) ||
!(me = (const rb_method_entry_t *)data) ||
(!me->def || me->def->type == VM_METHOD_TYPE_UNDEF) ||
UNDEFINED_REFINED_METHOD_P(me->def)) {
rb_name_err_raise("method `%1$s' not defined in %2$s",
@ -1183,10 +1183,18 @@ rb_mod_remove_method(int argc, VALUE *argv, VALUE mod)
return mod;
}
static inline void
METHOD_ENTRY_VISI_SET(rb_method_entry_t *me, rb_method_visibility_t visi)
{
VM_ASSERT((int)visi >= 0 && visi <= 3);
VALUE flags = (me->flags & ~(IMEMO_FL_USER0 | IMEMO_FL_USER1)) | (visi << (IMEMO_FL_USHIFT+0));
memcpy((void *)&me->flags, &flags, sizeof flags);
}
static void
rb_export_method(VALUE klass, ID name, rb_method_visibility_t visi)
{
rb_method_entry_t *me;
const rb_method_entry_t *me;
VALUE defined_class;
VALUE origin_class = RCLASS_ORIGIN(klass);
@ -1204,7 +1212,7 @@ rb_export_method(VALUE klass, ID name, rb_method_visibility_t visi)
rb_vm_check_redefinition_opt_method(me, klass);
if (klass == defined_class || origin_class == defined_class) {
METHOD_ENTRY_VISI_SET(me, visi);
METHOD_ENTRY_VISI_SET((rb_method_entry_t *)me, visi);
if (me->def->type == VM_METHOD_TYPE_REFINED && me->def->body.refined.orig_me) {
METHOD_ENTRY_VISI_SET((rb_method_entry_t *)me->def->body.refined.orig_me, visi);
@ -1732,7 +1740,7 @@ rb_alias(VALUE klass, ID alias_name, ID original_name)
method_added(target_klass, alias_name);
}
else {
rb_method_entry_t *alias_me;
const rb_method_entry_t *alias_me;
alias_me = method_entry_set(target_klass, alias_name, orig_me, visi, orig_me->owner);
RB_OBJ_WRITE(alias_me, &alias_me->owner, target_klass);
@ -1923,7 +1931,7 @@ rb_mod_ruby2_keywords(int argc, VALUE *argv, VALUE module)
for (i = 0; i < argc; i++) {
VALUE v = argv[i];
ID name = rb_check_id(&v);
rb_method_entry_t *me;
const rb_method_entry_t *me;
VALUE defined_class;
if (!name) {