+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Copyright 2009 Jean Privat <jean@pryen.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 kernel
+
+fun foo(p1: Int)
+ !bar(p2: Int) do (p1+p2).output
+ #alt1#!bar(p2: Int) do (p1*p2).output
+ #alt2#!p1 do abort
+do
+ bar(p1*10)
+ #alt3#var bar: Int = p1
+ #alt4#p2.output
+end
+
+foo(0)
+var a1: Int = 1
+foo(2) !bar(a2) do
+ #alt5#var a1: Int = 3
+ #alt6#var a2: Int = 3
+ #alt7#foo(3) !bar(a1) do a1.output
+ #alt8#foo(4) !bar(a2) do a1.output
+ a1.output
+ a2.output
+end
+var a2: Int = 5
+a1.output
+a2.output