applycall.js revision 877:cf4d2252d444 
1/*
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**
25 * Verify "length" property of functions is arity.
26 * Verify that function can be called by apply and call.
27 *
28 * @test
29 * @run
30 */
31
32function func(x, y) { print(x); print(y); }
33
34print(func.call);
35print("func.call.length = " + func.call.length);
36
37func.call(this, "hello, ", "world");
38func.apply(this, [ "hello, " , "world" ]);
39func("hello, ", "world");
40
41// extension: you can pass java List to apply
42
43var list = new java.util.ArrayList();
44list.add("invokedynamic");
45list.add(" is great!");
46func.apply(this, list);
47
48print("func.apply.length = " + func.apply.length);
49
50function func2() {
51    print("I am func2");
52}
53
54func2.apply(this);
55
56func.apply(this);
57