diff options
| -rw-r--r-- | src/hash.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/hash.c b/src/hash.c index 42b40482a..ffb8bd931 100644 --- a/src/hash.c +++ b/src/hash.c @@ -104,12 +104,11 @@ static void mrb_hash_modify(mrb_state *mrb, mrb_value hash); static inline mrb_value mrb_hash_ht_key(mrb_state *mrb, mrb_value key) { - if (mrb_string_p(key)) { + if (mrb_string_p(key) && !RSTR_FROZEN_P(mrb_str_ptr(key))) { key = mrb_str_dup(mrb, key); RSTR_SET_FROZEN_FLAG(mrb_str_ptr(key)); - return key; - } else - return key; + } + return key; } #define KEY(key) mrb_hash_ht_key(mrb, key) |