+# 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 base_gen2
+
+redef class B[E] #alt1# redef class B #alt2# redef class B[X] #alt3# redef class B[E,X]
+ fun output2 do e2.output
+ fun e2: E do return e
+ #alt2#fun e3: X do return e
+end
+
+var b = new B[Int](2)
+b.output2