From 347729a7c0f46a43fa21c75ba50f73ed604b097b Mon Sep 17 00:00:00 2001 From: KOBAYASHI Shuji Date: Sat, 19 Oct 2019 17:27:17 +0900 Subject: Fix that `Module#to_s` may return frozen string; ref 08eafe2 --- src/class.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/class.c b/src/class.c index b1c7513de..b8d3d31d8 100644 --- a/src/class.c +++ b/src/class.c @@ -1885,7 +1885,8 @@ mrb_mod_to_s(mrb_state *mrb, mrb_value klass) return mrb_str_cat_lit(mrb, str, ">"); } else { - return class_name_str(mrb, mrb_class_ptr(klass)); + mrb_value str = class_name_str(mrb, mrb_class_ptr(klass)); + return mrb_frozen_p(mrb_basic_ptr(str)) ? mrb_str_dup(mrb, str) : str; } } -- cgit v1.2.3