* variable.c (set_const_visibility): print a warning when no argument

is passwd to Module#private_constant.  [ruby-list:48558]

* vm_method.c (set_method_visibility): ditto for
  Module#private_class_method.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33936 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Sat Dec  3 20:49:16 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* variable.c (set_const_visibility): print a warning when no argument
+	  is passwd to Module#private_constant.  [ruby-list:48558]
+
+	* vm_method.c (set_method_visibility): ditto for
+	  Module#private_class_method.
+
 Sat Dec  3 20:43:14 2011  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* variable.c (set_const_visibility): Module#private_constant has

variable.c

@@ -2111,6 +2111,10 @@ set_const_visibility(VALUE mod, int argc, VALUE *argv, rb_const_flag_t flag)
 		 "Insecure: can't change constant visibility");
     }
 
+    if (argc == 0) {
+	rb_warning("%s with no argument is just ignored", rb_id2name(rb_frame_callee()));
+    }
+
     for (i = 0; i < argc; i++) {
 	VALUE val = argv[i];
 	id = rb_check_id(&val);

vm_method.c

@@ -985,6 +985,11 @@ set_method_visibility(VALUE self, int argc, VALUE *argv, rb_method_flag_t ex)
 {
     int i;
     secure_visibility(self);
+
+    if (argc == 0) {
+	rb_warning("%s with no argument is just ignored", rb_id2name(rb_frame_callee()));
+    }
+
     for (i = 0; i < argc; i++) {
 	VALUE v = argv[i];
 	ID id = rb_check_id(&v);