[EXPERIMENTAL] Make Module#name return a frozen String

    * Always the same frozen String for a given Module or Class.
    * Avoids extra allocations whenever calling Module#name.
    * See [Feature #16150]

1 files changed, 1 insertions, 4 deletions

diff --git a/variable.c b/variable.c
index 9fd075c21c..aafb6f4725 100644
--- a/variable.c
+++ b/variable.c
@@ -107,10 +107,7 @@ VALUE
 rb_mod_name(VALUE mod)
 {
     int permanent;
-    VALUE path = classname(mod, &permanent);
-
-    if (!NIL_P(path)) return rb_str_dup(path);
-    return path;
+    return classname(mod, &permanent);
 }
 
 static VALUE