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