make shared string to reference-counted C structure to reduce GC pressure

1 files changed, 0 insertions, 7 deletions

diff --git a/src/gc.c b/src/gc.c
index 04be437c1..03428765c 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -372,13 +372,6 @@ gc_mark_children(mrb_state *mrb, struct RBasic *obj)
     break;
 
   case MRB_TT_STRING:
-    {
-      struct RString *s = (struct RString*)obj;
-
-      if (s->flags & MRB_STR_SHARED) {
-	mrb_gc_mark(mrb, (struct RBasic*)s->aux.shared);
-      }
-    }
     break;
 
   case MRB_TT_RANGE: