1 // Copyright 2010 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
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.
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13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
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
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21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 // Flags: --allow-natives-syntax
30 // Check pops with various number of arguments.
33 for (var i = 0; i < 7; i++) {
34 a = [7, 6, 5, 4, 3, 2, 1];
36 assertEquals(1, a.pop(), "1st pop");
37 assertEquals(6, a.length, "length 1st pop");
39 assertEquals(2, a.pop(1), "2nd pop");
40 assertEquals(5, a.length, "length 2nd pop");
42 assertEquals(3, a.pop(1, 2), "3rd pop");
43 assertEquals(4, a.length, "length 3rd pop");
45 assertEquals(4, a.pop(1, 2, 3), "4th pop");
46 assertEquals(3, a.length, "length 4th pop");
48 assertEquals(5, a.pop(), "5th pop");
49 assertEquals(2, a.length, "length 5th pop");
51 assertEquals(6, a.pop(), "6th pop");
52 assertEquals(1, a.length, "length 6th pop");
54 assertEquals(7, a.pop(), "7th pop");
55 assertEquals(0, a.length, "length 7th pop");
57 assertEquals(undefined, a.pop(), "8th pop");
58 assertEquals(0, a.length, "length 8th pop");
60 assertEquals(undefined, a.pop(1, 2, 3), "9th pop");
61 assertEquals(0, a.length, "length 9th pop");
64 // Check that pop works on inherited properties.
65 for (var i = 0; i < 10 ;i++) { // Ensure ICs are stabilized.
66 Array.prototype[1] = 1;
67 Array.prototype[3] = 3;
68 Array.prototype[5] = 5;
69 Array.prototype[7] = 7;
70 Array.prototype[9] = 9;
71 a = [0,1,2,,4,,6,7,8,,];
72 assertEquals(10, a.length, "inherit-initial-length");
73 for (var j = 9; j >= 0; j--) {
74 assertEquals(j + 1, a.length, "inherit-pre-length-" + j);
75 assertTrue(j in a, "has property " + j);
76 var own = a.hasOwnProperty(j);
77 var inherited = Array.prototype.hasOwnProperty(j);
78 assertEquals(j, a.pop(), "inherit-pop");
79 assertEquals(j, a.length, "inherit-post-length");
80 assertFalse(a.hasOwnProperty(j), "inherit-deleted-own-" + j);
81 assertEquals(inherited, Array.prototype.hasOwnProperty(j),
82 "inherit-not-deleted-inherited" + j);
84 Array.prototype.length = 0; // Clean-up.
87 // Check that pop works on inherited properties for
88 // arrays with array prototype.
89 for (var i = 0; i < 10 ;i++) { // Ensure ICs are stabilized.
96 a = [0,1,2,,4,,6,7,8,,];
97 a.__proto__ = array_proto;
98 assertEquals(10, a.length, "array_proto-inherit-initial-length");
99 for (var j = 9; j >= 0; j--) {
100 assertEquals(j + 1, a.length, "array_proto-inherit-pre-length-" + j);
101 assertTrue(j in a, "array_proto-has property " + j);
102 var own = a.hasOwnProperty(j);
103 var inherited = array_proto.hasOwnProperty(j);
104 assertEquals(j, a.pop(), "array_proto-inherit-pop");
105 assertEquals(j, a.length, "array_proto-inherit-post-length");
106 assertFalse(a.hasOwnProperty(j), "array_proto-inherit-deleted-own-" + j);
107 assertEquals(inherited, array_proto.hasOwnProperty(j),
108 "array_proto-inherit-not-deleted-inherited" + j);
112 // Check that pop works on inherited properties for
113 // arrays with array prototype.
116 // Test the case of not JSArray receiver.
117 // Regression test for custom call generators, see issue 684.
120 for (var i = 0; i < 100; i++) a.push(i);
121 var x = {__proto__: a};
122 for (var i = 0; i < 100; i++) {
123 assertEquals(99 - i, x.pop(), i + 'th iteration');
128 function f(a, deopt) {
129 var v = a.pop() ? 1 : 2;
130 if (deopt) %DeoptimizeFunction(f);
134 var a = [true, true, true, true]
135 assertEquals(1, f(a, false));
136 assertEquals(1, f(a, false));
137 %OptimizeFunctionOnNextCall(f);
138 assertEquals(1, f(a, false));
139 assertEquals(1, f(a, true));