1// Copyright 2008 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// This test fails because we copy the arguments array on indirect
29// access
30
31function g(f) {
32  assertEquals(100, f.arguments = 100);  // read-only
33  assertEquals(3, f.arguments.length);
34  assertEquals(1, f.arguments[0]);
35  assertEquals(2, f.arguments[1]);
36  assertEquals(3, f.arguments[2]);
37  f.arguments[0] = 999;
38  f.arguments.extra = 'kallevip';
39}
40
41function h(f) {
42  assertEquals('kallevip', f.arguments.extra);
43  return f.arguments;
44}
45
46// Test function with a materialized arguments array.
47function f0() {
48  g(f0);
49  var result = h(f0);
50  var a = arguments;
51  assertEquals(999, a[0]);
52  return result;
53}
54
55
56// Test function without a materialized arguments array.
57function f1(x) {
58  g(f1);
59  var result = h(f1);
60  assertEquals(999, x);
61  return result;
62}
63
64
65function test(f) {
66  assertTrue(null === f.arguments);
67  var args = f(1,2,3);
68  assertTrue(null === f.arguments);
69
70  assertEquals(3, args.length);
71  assertEquals(999, args[0]);
72  assertEquals(2, args[1]);
73  assertEquals(3, args[2]);
74  assertEquals('kallevip', args.extra);
75}
76
77test(f0);
78test(f1);
79
80
81
82
83function w() {
84  return q.arguments;
85}
86
87function q(x, y) {
88  x = 2;
89  var result = w();
90  y = 3;
91  return result;
92}
93
94var a = q(0, 1);
95// x is set locally *before* the last use of arguments before the
96// activation of q is popped from the stack.
97assertEquals(2, a[0]);
98// y is set locally *after* the last use of arguments before the
99// activation of q is popped from the stack.
100assertEquals(1, a[1]);
101