1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Test that Object.prototype.propertyIsEnumerable handles array indices
// correctly.
var p = Object.create({}, {
a : { value : 42, enumerable : true },
b : { value : 42, enumerable : false },
1 : { value : 42, enumerable : true },
2 : { value : 42, enumerable : false },
f : { get: function(){}, enumerable: true },
g : { get: function(){}, enumerable: false },
11 : { get: function(){}, enumerable: true },
12 : { get: function(){}, enumerable: false }
});
var o = Object.create(p, {
c : { value : 42, enumerable : true },
d : { value : 42, enumerable : false },
3 : { value : 42, enumerable : true },
4 : { value : 42, enumerable : false },
h : { get: function(){}, enumerable: true },
k : { get: function(){}, enumerable: false },
13 : { get: function(){}, enumerable: true },
14 : { get: function(){}, enumerable: false }
});
// Inherited properties are ignored.
assertFalse(o.propertyIsEnumerable("a"));
assertFalse(o.propertyIsEnumerable("b"));
assertFalse(o.propertyIsEnumerable("1"));
assertFalse(o.propertyIsEnumerable("2"));
// Own properties.
assertTrue(o.propertyIsEnumerable("c"));
assertFalse(o.propertyIsEnumerable("d"));
assertTrue(o.propertyIsEnumerable("3"));
assertFalse(o.propertyIsEnumerable("4"));
// Inherited accessors.
assertFalse(o.propertyIsEnumerable("f"));
assertFalse(o.propertyIsEnumerable("g"));
assertFalse(o.propertyIsEnumerable("11"));
assertFalse(o.propertyIsEnumerable("12"));
// Own accessors.
assertTrue(o.propertyIsEnumerable("h"));
assertFalse(o.propertyIsEnumerable("k"));
assertTrue(o.propertyIsEnumerable("13"));
assertFalse(o.propertyIsEnumerable("14"));
// Nonexisting properties.
assertFalse(o.propertyIsEnumerable("xxx"));
assertFalse(o.propertyIsEnumerable("999"));
// String object properties.
var o = Object("string");
// Non-string property on String object.
o[10] = 42;
assertTrue(o.propertyIsEnumerable(10));
assertFalse(o.propertyIsEnumerable(0));
// Fast elements.
var o = [1,2,3,4,5];
assertTrue(o.propertyIsEnumerable(3));
|
