1 files changed, 7 insertions, 0 deletions
diff --git a/string.c b/string.c
index f101a94c32..e7f9b44324 100644
--- a/string.c
+++ b/string.c
@@ -1871,6 +1871,13 @@ rb_str_unlocktmp(VALUE str)
     return str;
 }
 
+VALUE
+rb_str_locktmp_ensure(VALUE str, VALUE (*func)(VALUE), VALUE arg)
+{
+    rb_str_locktmp(str);
+    return rb_ensure(func, arg, rb_str_unlocktmp, str);
+}
+
 void
 rb_str_set_len(VALUE str, long len)
 {