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
|
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.findindex
description: >
Predicate may detach the buffer
info: |
22.2.3.11 %TypedArray%.prototype.findIndex ( predicate [ , thisArg ] )
%TypedArray%.prototype.findIndex is a distinct function that implements the
same algorithm as Array.prototype.findIndex as defined in 22.1.3.9 except that
the this object's [[ArrayLength]] internal slot is accessed in place of
performing a [[Get]] of "length".
...
22.1.3.9 Array.prototype.findIndex ( predicate[ , thisArg ] )
...
6. Repeat, while k < len
...
b. Let kValue be ? Get(O, Pk).
c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
...
9.4.5.8 IntegerIndexedElementGet ( O, index )
...
3. Let buffer be the value of O's [[ViewedArrayBuffer]] internal slot.
4. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
...
includes: [testBigIntTypedArray.js, detachArrayBuffer.js]
features: [BigInt, TypedArray]
---*/
testWithBigIntTypedArrayConstructors(function(TA) {
var sample = new TA(2);
var loops = 0;
var completion = false;
assert.throws(TypeError, function() {
sample.findIndex(function() {
loops++;
$DETACHBUFFER(sample.buffer);
completion = true;
});
}, "throws a TypeError getting a value from the detached buffer");
assert.sameValue(loops, 1, "predicated is called once");
assert(completion, "abrupt completion does not come from DETACHBUFFER");
});
|
