1// Copyright 2010 the V8 project authors. All rights reserved.
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3// modification, are permitted provided that the following conditions are
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Check pops with various number of arguments.
29(function() {
30  var a = [];
31  for (var i = 0; i < 7; i++) {
32    a = [7, 6, 5, 4, 3, 2, 1];
33
34    assertEquals(1, a.pop(), "1st pop");
35    assertEquals(6, a.length, "length 1st pop");
36
37    assertEquals(2, a.pop(1), "2nd pop");
38    assertEquals(5, a.length, "length 2nd pop");
39
40    assertEquals(3, a.pop(1, 2), "3rd pop");
41    assertEquals(4, a.length, "length 3rd pop");
42
43    assertEquals(4, a.pop(1, 2, 3), "4th pop");
44    assertEquals(3, a.length, "length 4th pop");
45
46    assertEquals(5, a.pop(), "5th pop");
47    assertEquals(2, a.length, "length 5th pop");
48
49    assertEquals(6, a.pop(), "6th pop");
50    assertEquals(1, a.length, "length 6th pop");
51
52    assertEquals(7, a.pop(), "7th pop");
53    assertEquals(0, a.length, "length 7th pop");
54
55    assertEquals(undefined, a.pop(), "8th pop");
56    assertEquals(0, a.length, "length 8th pop");
57
58    assertEquals(undefined, a.pop(1, 2, 3), "9th pop");
59    assertEquals(0, a.length, "length 9th pop");
60  }
61
62  // Check that pop works on inherited properties.
63  for (var i = 0; i < 10 ;i++) {  // Ensure ICs are stabilized.
64    Array.prototype[1] = 1;
65    Array.prototype[3] = 3;
66    Array.prototype[5] = 5;
67    Array.prototype[7] = 7;
68    Array.prototype[9] = 9;
69    a = [0,1,2,,4,,6,7,8,,];
70    assertEquals(10, a.length, "inherit-initial-length");
71    for (var j = 9; j >= 0; j--) {
72      assertEquals(j + 1, a.length, "inherit-pre-length-" + j);
73      assertTrue(j in a, "has property " + j);
74      var own = a.hasOwnProperty(j);
75      var inherited = Array.prototype.hasOwnProperty(j);
76      assertEquals(j, a.pop(), "inherit-pop");
77      assertEquals(j, a.length, "inherit-post-length");
78      assertFalse(a.hasOwnProperty(j), "inherit-deleted-own-" + j);
79      assertEquals(inherited, Array.prototype.hasOwnProperty(j),
80                   "inherit-not-deleted-inherited" + j);
81    }
82    Array.prototype.length = 0;  // Clean-up.
83  }
84
85  // Check that pop works on inherited properties for
86  // arrays with array prototype.
87  for (var i = 0; i < 10 ;i++) {  // Ensure ICs are stabilized.
88    var array_proto = [];
89    array_proto[1] = 1;
90    array_proto[3] = 3;
91    array_proto[5] = 5;
92    array_proto[7] = 7;
93    array_proto[9] = 9;
94    a = [0,1,2,,4,,6,7,8,,];
95    a.__proto__ = array_proto;
96    assertEquals(10, a.length, "array_proto-inherit-initial-length");
97    for (var j = 9; j >= 0; j--) {
98      assertEquals(j + 1, a.length, "array_proto-inherit-pre-length-" + j);
99      assertTrue(j in a, "array_proto-has property " + j);
100      var own = a.hasOwnProperty(j);
101      var inherited = array_proto.hasOwnProperty(j);
102      assertEquals(j, a.pop(), "array_proto-inherit-pop");
103      assertEquals(j, a.length, "array_proto-inherit-post-length");
104      assertFalse(a.hasOwnProperty(j), "array_proto-inherit-deleted-own-" + j);
105      assertEquals(inherited, array_proto.hasOwnProperty(j),
106                   "array_proto-inherit-not-deleted-inherited" + j);
107    }
108  }
109
110  // Check that pop works on inherited properties for
111  // arrays with array prototype.
112})();
113
114// Test the case of not JSArray receiver.
115// Regression test for custom call generators, see issue 684.
116(function() {
117  var a = [];
118  for (var i = 0; i < 100; i++) a.push(i);
119  var x = {__proto__: a};
120  for (var i = 0; i < 100; i++) {
121    assertEquals(99 - i, x.pop(), i + 'th iteration');
122  }
123})();
124