diff options
Diffstat (limited to 'hash.c')
-rw-r--r-- | hash.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -2726,9 +2726,12 @@ rb_hash_compact_bang(VALUE hash) { rb_hash_modify_check(hash); if (RHASH(hash)->ntbl) { + st_index_t n = RHASH(hash)->ntbl->num_entries; rb_hash_foreach(hash, delete_if_nil, hash); + if (n != RHASH(hash)->ntbl->num_entries) + return hash; } - return hash; + return Qnil; } static VALUE rb_hash_compare_by_id_p(VALUE hash); |