duke@1: /*
ohair@554:  * Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
duke@1:  * published by the Free Software Foundation.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
duke@1:  */
duke@1: 
duke@1: /*
duke@1:  * @test
duke@1:  * @bug 4736963
duke@1:  * @summary Positive regression test from odersky
duke@1:  * @author odersky
duke@1:  *
darcy@289:  * @compile  Test.java
duke@1:  */
duke@1: 
duke@1: class Test {
duke@1: 
duke@1:     static <B> List<B> nil() { return new List<B>(); }
duke@1:     static <A> List<A> cons(A x, List<A> xs) { return xs.prepend(x); }
duke@1:     static <A> Cell<A> makeCell(A x) { return new Cell<A>(x); }
duke@1:     static <A> A id(A x) { return x; }
duke@1: 
duke@1:     public static void main(String[] args) {
duke@1:         List<String> xs = nil();
duke@1:         List<String> ys = cons("abc", Test.<String>nil());
duke@1:         List<String> zs = Test.<String>nil().prepend("abc");
duke@1: 
duke@1:         System.out.println(nil());
duke@1:         System.out.println(nil().length());
duke@1: 
duke@1:         System.out.println(cons("abc", nil()));
duke@1:         System.out.println(nil().prepend("abc"));
duke@1:         System.out.println(nil().prepend(makeCell(null)));
duke@1:         System.out.println(cons(makeCell(null), nil()));
duke@1: 
duke@1:         System.out.println(id(nil()));
duke@1:         System.out.println(id(nil()).length());
duke@1: 
duke@1:         System.out.println(cons("abc", id(nil())));
duke@1:         System.out.println(id(nil()).prepend("abc"));
duke@1:         System.out.println(id(nil()).prepend(makeCell(null)));
duke@1:         System.out.println(cons(makeCell(null), id(nil())));
duke@1: 
duke@1:         List<String> a =
duke@1:             args.length == 1 ? Test.<String>nil() : Test.<String>nil();
duke@1:         a = (List<String>) Test.<String>nil();
duke@1:     }
duke@1: 
duke@1: }