1// Copyright 2013 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// Flags: --allow-natives-syntax
29
30// Test materialization of an arguments object with unknown argument
31// values in non-strict mode (length has to be zero).
32(function() {
33  var deoptimize = { deopt:true };
34  var object = {};
35
36  object.a = function A(x, y, z) {
37    assertSame(0, arguments.length);
38    return this.b();
39  };
40
41  object.b = function B() {
42    assertSame(0, arguments.length);
43    deoptimize.deopt;
44    return arguments.length;
45  };
46
47  assertSame(0, object.a());
48  assertSame(0, object.a());
49  %OptimizeFunctionOnNextCall(object.a);
50  assertSame(0, object.a());
51  delete deoptimize.deopt;
52  assertSame(0, object.a());
53})();
54
55
56// Test materialization of an arguments object with unknown argument
57// values in strict mode (length is allowed to exceed stack size).
58(function() {
59  'use strict';
60  var deoptimize = { deopt:true };
61  var object = {};
62
63  object.a = function A(x, y, z) {
64    assertSame(0, arguments.length);
65    return this.b(1, 2, 3, 4, 5, 6, 7, 8);
66  };
67
68  object.b = function B(a, b, c, d, e, f, g, h) {
69    assertSame(8, arguments.length);
70    deoptimize.deopt;
71    return arguments.length;
72  };
73
74  assertSame(8, object.a());
75  assertSame(8, object.a());
76  %OptimizeFunctionOnNextCall(object.a);
77  assertSame(8, object.a());
78  delete deoptimize.deopt;
79  assertSame(8, object.a());
80})();
81