Refactor `rb_class_ivar_set`

In every caller of `rb_class_ivar_set` it checks for the `RCLASS_IV_TBL`
and then creates it if it doesn't exist. Instead of repeating this in
every caller, this can be done once in `rb_class_ivar_set`.

1 files changed, 0 insertions, 3 deletions

diff --git a/class.c b/class.c
index 68cfbfb257..b2e15c20d5 100644
--- a/class.c
+++ b/class.c
@@ -529,9 +529,6 @@ void
 rb_singleton_class_attached(VALUE klass, VALUE obj)
 {
     if (FL_TEST(klass, FL_SINGLETON)) {
-	if (!RCLASS_IV_TBL(klass)) {
-	    RCLASS_IV_TBL(klass) = st_init_numtable();
-	}
 	rb_class_ivar_set(klass, id_attached, obj);
     }
 }