2 var global = require('../internals/global');
3 var uncurryThis = require('../internals/function-uncurry-this');
4 var fails = require('../internals/fails');
5 var aCallable = require('../internals/a-callable');
6 var internalSort = require('../internals/array-sort');
7 var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
8 var FF = require('../internals/engine-ff-version');
9 var IE_OR_EDGE = require('../internals/engine-is-ie-or-edge');
10 var V8 = require('../internals/engine-v8-version');
11 var WEBKIT = require('../internals/engine-webkit-version');
13 var Array = global.Array;
14 var aTypedArray = ArrayBufferViewCore.aTypedArray;
15 var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
16 var Uint16Array = global.Uint16Array;
17 var un$Sort = Uint16Array && uncurryThis(Uint16Array.prototype.sort);
20 var ACCEPT_INCORRECT_ARGUMENTS = !!un$Sort && !(fails(function () {
21 un$Sort(new Uint16Array(2), null);
22 }) && fails(function () {
23 un$Sort(new Uint16Array(2), {});
26 var STABLE_SORT = !!un$Sort && !fails(function () {
27 // feature detection can be too slow, so check engines versions
28 if (V8) return V8 < 74;
29 if (FF) return FF < 67;
30 if (IE_OR_EDGE) return true;
31 if (WEBKIT) return WEBKIT < 602;
33 var array = new Uint16Array(516);
34 var expected = Array(516);
37 for (index = 0; index < 516; index++) {
39 array[index] = 515 - index;
40 expected[index] = index - 2 * mod + 3;
43 un$Sort(array, function (a, b) {
44 return (a / 4 | 0) - (b / 4 | 0);
47 for (index = 0; index < 516; index++) {
48 if (array[index] !== expected[index]) return true;
52 var getSortCompare = function (comparefn) {
53 return function (x, y) {
54 if (comparefn !== undefined) return +comparefn(x, y) || 0;
55 // eslint-disable-next-line no-self-compare -- NaN check
56 if (y !== y) return -1;
57 // eslint-disable-next-line no-self-compare -- NaN check
58 if (x !== x) return 1;
59 if (x === 0 && y === 0) return 1 / x > 0 && 1 / y < 0 ? 1 : -1;
64 // `%TypedArray%.prototype.sort` method
65 // https://tc39.es/ecma262/#sec-%typedarray%.prototype.sort
66 exportTypedArrayMethod('sort', function sort(comparefn) {
67 if (comparefn !== undefined) aCallable(comparefn);
68 if (STABLE_SORT) return un$Sort(this, comparefn);
70 return internalSort(aTypedArray(this), getSortCompare(comparefn));
71 }, !STABLE_SORT || ACCEPT_INCORRECT_ARGUMENTS);