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
90
91
92
93
94
95
96
97
98
99
100
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "jsapi-tests/tests.h"
static bool
Getter(JSContext* cx, unsigned argc, JS::Value* vp)
{
JS::CallArgs args = CallArgsFromVp(argc, vp);
args.rval().setBoolean(true);
return true;
}
enum PropertyDescriptorKind {
DataDescriptor, AccessorDescriptor
};
static bool
CheckDescriptor(JS::Handle<JS::PropertyDescriptor> desc, PropertyDescriptorKind kind,
bool enumerable, bool writable, bool configurable)
{
if (!desc.object())
return false;
if (!(kind == DataDescriptor ? desc.isDataDescriptor() : desc.isAccessorDescriptor()))
return false;
if (desc.enumerable() != enumerable)
return false;
if (kind == DataDescriptor && desc.writable() != writable)
return false;
if (desc.configurable() != configurable)
return false;
return true;
}
BEGIN_TEST(testDefinePropertyIgnoredAttributes)
{
JS::RootedObject obj(cx, JS_NewPlainObject(cx));
JS::Rooted<JS::PropertyDescriptor> desc(cx);
JS::RootedValue defineValue(cx);
// Try a getter. Allow it to fill in the defaults. Because we're passing a
// JSNative, JS_DefineProperty will infer JSPROP_GETTER even though we
// aren't passing it.
CHECK(JS_DefineProperty(cx, obj, "foo", defineValue,
JSPROP_IGNORE_ENUMERATE | JSPROP_IGNORE_PERMANENT | JSPROP_SHARED,
Getter));
CHECK(JS_GetOwnPropertyDescriptor(cx, obj, "foo", &desc));
// Note that JSPROP_READONLY is meaningless for accessor properties.
CHECK(CheckDescriptor(desc, AccessorDescriptor, false, true, false));
// Install another configurable property, so we can futz with it.
CHECK(JS_DefineProperty(cx, obj, "bar", defineValue,
JSPROP_IGNORE_ENUMERATE | JSPROP_SHARED,
Getter));
CHECK(JS_GetOwnPropertyDescriptor(cx, obj, "bar", &desc));
CHECK(CheckDescriptor(desc, AccessorDescriptor, false, true, true));
// Rewrite the descriptor to now be enumerable, leaving the configurability
// unchanged.
CHECK(JS_DefineProperty(cx, obj, "bar", defineValue,
JSPROP_IGNORE_PERMANENT | JSPROP_ENUMERATE | JSPROP_SHARED,
Getter));
CHECK(JS_GetOwnPropertyDescriptor(cx, obj, "bar", &desc));
CHECK(CheckDescriptor(desc, AccessorDescriptor, true, true, true));
// Now try the same game with a value property
defineValue.setObject(*obj);
CHECK(JS_DefineProperty(cx, obj, "baz", defineValue,
JSPROP_IGNORE_ENUMERATE |
JSPROP_IGNORE_READONLY |
JSPROP_IGNORE_PERMANENT));
CHECK(JS_GetOwnPropertyDescriptor(cx, obj, "baz", &desc));
CHECK(CheckDescriptor(desc, DataDescriptor, false, false, false));
// Now again with a configurable property
CHECK(JS_DefineProperty(cx, obj, "quux", defineValue,
JSPROP_IGNORE_ENUMERATE | JSPROP_IGNORE_READONLY));
CHECK(JS_GetOwnPropertyDescriptor(cx, obj, "quux", &desc));
CHECK(CheckDescriptor(desc, DataDescriptor, false, false, true));
// Just make it writable. Leave the old value and everything else alone.
defineValue.setUndefined();
CHECK(JS_DefineProperty(cx, obj, "quux", defineValue,
JSPROP_IGNORE_ENUMERATE |
JSPROP_IGNORE_PERMANENT |
JSPROP_IGNORE_VALUE));
CHECK(JS_GetOwnPropertyDescriptor(cx, obj, "quux", &desc));
CHECK(CheckDescriptor(desc, DataDescriptor, false, true, true));
CHECK_SAME(JS::ObjectValue(*obj), desc.value());
return true;
}
END_TEST(testDefinePropertyIgnoredAttributes)
|
