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Simplified rb_obj_copy_ivar implementation

This commit is contained in:
Jemma Issroff 2022-10-17 14:31:24 -04:00 committed by Aaron Patterson
parent 1865ed4ab9
commit b54c8ba8fc
Notes: git 2022-10-17 21:48:04 +00:00 
Merged: https://github.com/ruby/ruby/pull/6573
1 changed files with 9 additions and 25 deletions
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34
object.c
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@ -268,37 +268,21 @@ rb_obj_singleton_class(VALUE obj)
MJIT_FUNC_EXPORTED void
rb_obj_copy_ivar(VALUE dest, VALUE obj)
{
VALUE *dest_buf = ROBJECT_IVPTR(dest);
VALUE *src_buf = ROBJECT_IVPTR(obj);
uint32_t dest_len = ROBJECT_NUMIV(dest);
uint32_t src_len = ROBJECT_NUMIV(obj);
uint32_t max_len = dest_len < src_len ? src_len : dest_len;
rb_ensure_iv_list_size(dest, dest_len, max_len);
dest_len = ROBJECT_NUMIV(dest);
uint32_t min_len = dest_len > src_len ? src_len : dest_len;
if (RBASIC(obj)->flags & ROBJECT_EMBED) {
src_buf = ROBJECT(obj)->as.ary;
// embedded -> embedded
if (RBASIC(dest)->flags & ROBJECT_EMBED) {
dest_buf = ROBJECT(dest)->as.ary;
}
// embedded -> extended
else {
dest_buf = ROBJECT(dest)->as.heap.ivptr;
}
}
// extended -> extended
else {
if (dest_len < src_len) {
rb_ensure_iv_list_size(dest, dest_len, src_len);
RUBY_ASSERT(!(RBASIC(dest)->flags & ROBJECT_EMBED));
dest_buf = ROBJECT(dest)->as.heap.ivptr;
src_buf = ROBJECT(obj)->as.heap.ivptr;
}
else {
RUBY_ASSERT((RBASIC(dest)->flags & ROBJECT_EMBED));
}
MEMCPY(dest_buf, src_buf, VALUE, min_len);
VALUE * dest_buf = ROBJECT_IVPTR(dest);
VALUE * src_buf = ROBJECT_IVPTR(obj);
MEMCPY(dest_buf, src_buf, VALUE, ROBJECT_IV_COUNT(obj));
}
static void