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object.c: rb_obj_copy_ivar

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* object.c (rb_obj_copy_ivar): extract function to copy instance
  variables only for T_OBJECT from init_copy.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46501 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-06-23 02:33:15 +00:00
parent 972046f084
commit cf3890205f
3 changed files with 31 additions and 19 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
Mon Jun 23 11:32:59 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* object.c (rb_obj_copy_ivar): extract function to copy instance
variables only for T_OBJECT from init_copy.
Mon Jun 23 11:11:16 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* signal.c (check_stack_overflow): drop the last tag too close to

1
internal.h
View file

@ -733,6 +733,7 @@ rb_float_new_inline(double d)
#define rb_float_new(d) rb_float_new_inline(d)
/* object.c */
void rb_obj_copy_ivar(VALUE dest, VALUE obj);
VALUE rb_obj_equal(VALUE obj1, VALUE obj2);
VALUE rb_class_search_ancestor(VALUE klass, VALUE super);

44
object.c
View file

@ -255,6 +255,30 @@ rb_obj_singleton_class(VALUE obj)
return rb_singleton_class(obj);
}
void
rb_obj_copy_ivar(VALUE dest, VALUE obj)
{
if (!(RBASIC(dest)->flags & ROBJECT_EMBED) && ROBJECT_IVPTR(dest)) {
xfree(ROBJECT_IVPTR(dest));
ROBJECT(dest)->as.heap.ivptr = 0;
ROBJECT(dest)->as.heap.numiv = 0;
ROBJECT(dest)->as.heap.iv_index_tbl = 0;
}
if (RBASIC(obj)->flags & ROBJECT_EMBED) {
MEMCPY(ROBJECT(dest)->as.ary, ROBJECT(obj)->as.ary, VALUE, ROBJECT_EMBED_LEN_MAX);
RBASIC(dest)->flags |= ROBJECT_EMBED;
}
else {
long len = ROBJECT(obj)->as.heap.numiv;
VALUE *ptr = ALLOC_N(VALUE, len);
MEMCPY(ptr, ROBJECT(obj)->as.heap.ivptr, VALUE, len);
ROBJECT(dest)->as.heap.ivptr = ptr;
ROBJECT(dest)->as.heap.numiv = len;
ROBJECT(dest)->as.heap.iv_index_tbl = ROBJECT(obj)->as.heap.iv_index_tbl;
RBASIC(dest)->flags &= ~ROBJECT_EMBED;
}
}
static void
init_copy(VALUE dest, VALUE obj)
{
@ -266,25 +290,7 @@ init_copy(VALUE dest, VALUE obj)
rb_copy_generic_ivar(dest, obj);
rb_gc_copy_finalizer(dest, obj);
if (RB_TYPE_P(obj, T_OBJECT)) {
if (!(RBASIC(dest)->flags & ROBJECT_EMBED) && ROBJECT_IVPTR(dest)) {
xfree(ROBJECT_IVPTR(dest));
ROBJECT(dest)->as.heap.ivptr = 0;
ROBJECT(dest)->as.heap.numiv = 0;
ROBJECT(dest)->as.heap.iv_index_tbl = 0;
}
if (RBASIC(obj)->flags & ROBJECT_EMBED) {
MEMCPY(ROBJECT(dest)->as.ary, ROBJECT(obj)->as.ary, VALUE, ROBJECT_EMBED_LEN_MAX);
RBASIC(dest)->flags |= ROBJECT_EMBED;
}
else {
long len = ROBJECT(obj)->as.heap.numiv;
VALUE *ptr = ALLOC_N(VALUE, len);
MEMCPY(ptr, ROBJECT(obj)->as.heap.ivptr, VALUE, len);
ROBJECT(dest)->as.heap.ivptr = ptr;
ROBJECT(dest)->as.heap.numiv = len;
ROBJECT(dest)->as.heap.iv_index_tbl = ROBJECT(obj)->as.heap.iv_index_tbl;
RBASIC(dest)->flags &= ~ROBJECT_EMBED;
}
rb_obj_copy_ivar(dest, obj);
}
}