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
|
// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration()['arm64-simulator'])) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics
// Copyright (C) 2018 Amal Hussein. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.wait
description: >
Throws a TypeError if value arg is a Symbol
info: |
Atomics.wait( typedArray, index, value, timeout )
3. Let v be ? ToInt32(value).
ToInt32(value)
1.Let number be ? ToNumber(argument).
Symbol --> Throw a TypeError exception.
includes: [atomicsHelper.js]
features: [Atomics, SharedArrayBuffer, Symbol, Symbol.toPrimitive, TypedArray]
---*/
const RUNNING = 1;
$262.agent.start(`
const poisonedValueOf = {
valueOf: function() {
throw new Test262Error('should not evaluate this code');
}
};
const poisonedToPrimitive = {
[Symbol.toPrimitive]: function() {
throw new Test262Error("passing a poisoned object using @@ToPrimitive");
}
};
$262.agent.receiveBroadcast(function(sab) {
const i32a = new Int32Array(sab);
Atomics.add(i32a, ${RUNNING}, 1);
let status1 = "";
let status2 = "";
try {
Atomics.wait(i32a, 0, Symbol("1"), poisonedValueOf);
} catch (error) {
status1 = 'Symbol("1")';
}
try {
Atomics.wait(i32a, 0, Symbol("2"), poisonedToPrimitive);
} catch (error) {
status2 = 'Symbol("2")';
}
$262.agent.report(status1);
$262.agent.report(status2);
$262.agent.leaving();
});
`);
const i32a = new Int32Array(
new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
);
$262.agent.safeBroadcast(i32a);
$262.agent.waitUntil(i32a, RUNNING, 1);
// Try to yield control to ensure the agent actually started to wait.
$262.agent.tryYield();
assert.sameValue(
$262.agent.getReport(),
'Symbol("1")',
'$262.agent.getReport() returns "Symbol("1")"'
);
assert.sameValue(
$262.agent.getReport(),
'Symbol("2")',
'$262.agent.getReport() returns "Symbol("2")"'
);
assert.sameValue(Atomics.notify(i32a, 0), 0, 'Atomics.notify(i32a, 0) returns 0');
reportCompare(0, 0);
|