--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import standard::kernel
+
+
+redef class Int
+ fun foo do self.output
+end
+
+fun bar(i: nullable Int) do i.foo
+
+redef class Float
+ fun foo do self.output
+end
+
+fun baz(i: nullable Float) do i.foo
+
+bar(1)
+baz(1.0)
+
+var a: nullable Object
+
+a = 1
+a.foo
+
+a = 1.0
+a.foo