Symbol#dup raises a TypeError

cschneid · Jun 22, 2012 · 3146804 · 3146804
1 parent 3a8540a
commit 3146804
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/NSString.m b/NSString.m
@@ -55,6 +55,10 @@
 static id
 nsstr_dup(id rcv, SEL sel)
 {
+    if (TYPE(rcv) == T_SYMBOL) {
+        rb_raise(rb_eTypeError, "can't dup %s", rb_obj_classname((VALUE)rcv));
+    }
+
     id dup = (id)str_new_from_cfstring((CFStringRef)rcv);
     if (OBJ_TAINTED(rcv)) {
 	OBJ_TAINT(dup);

diff --git a/spec/frozen/tags/macruby/core/object/dup_tags.txt b/spec/frozen/tags/macruby/core/object/dup_tags.txt