* vm_method.c (rb_add_method_def): no redefinition warning on

undef.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25206 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sat Oct  3 21:19:18 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm_method.c (rb_add_method_def): no redefinition warning on
+	  undef.
+
 Sat Oct  3 18:51:11 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* object.c (rb_f_integer): now Integer() takes optional base

test/ruby/test_class.rb

@@ -150,7 +150,15 @@ class TestClass < Test::Unit::TestCase
       Class.new do
         define_method(:foo) do end
         alias bar foo
-        alias barf oo
+        alias bar foo
+      end
+    end
+    assert_equal("", stderr)
+
+    stderr = EnvUtil.verbose_warning do
+      Class.new do
+        def foo; end
+        undef foo
       end
     end
     assert_equal("", stderr)

test/ruby/test_module.rb

@@ -845,5 +845,13 @@ class TestModule < Test::Unit::TestCase
       end
     end
     assert_equal("", stderr, '[ruby-dev:39397]')
+
+    stderr = EnvUtil.verbose_warning do
+      Module.new do
+        def foo; end
+        undef foo
+      end
+    end
+    assert_equal("", stderr)
   end
 end

vm_method.c

@@ -185,6 +185,7 @@ rb_add_method_def(VALUE klass, ID mid, rb_method_type_t type, rb_method_definiti
 	rb_vm_check_redefinition_opt_method(old_me);
 
 	if (RTEST(ruby_verbose) &&
+	    type != VM_METHOD_TYPE_UNDEF &&
 	    old_def->alias_count == 0 &&
 	    old_def->type != VM_METHOD_TYPE_UNDEF &&
 	    old_def->type != VM_METHOD_TYPE_ZSUPER) {