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Issue #2551 - Ensure toSorted is 100% spec compliant per multiple tests

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Basilisk-Dev 2026-02-05 09:53:39 -05:00 • committed by wuggy
commit 4edeca8c62
1 changed files with 41 additions and 5 deletions
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46
js/src/builtin/Array.js
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@ -264,15 +264,51 @@ function ArrayToSorted(comparefn) {
var O = ToObject(this);
var len = ToLength(O.length);
var A = ArraySpeciesCreate(O, len);
var items = new List();
var itemsLen = 0;
for (var k = 0; k < len; k++) {
if (k in O)
_DefineDataProperty(A, k, O[k]);
else
delete A[k];
items[itemsLen++] = O[k];
}
callFunction(std_Array_sort, A, comparefn);
var wrappedCompareFn = comparefn;
var sortCompare;
if (wrappedCompareFn === undefined) {
sortCompare = function(x, y) {
if (x === undefined)
return y === undefined ? 0 : 1;
if (y === undefined)
return -1;
var xString = ToString(x);
var yString = ToString(y);
if (xString < yString)
return -1;
if (xString > yString)
return 1;
return 0;
};
} else {
sortCompare = function(x, y) {
if (x === undefined)
return y === undefined ? 0 : 1;
if (y === undefined)
return -1;
var v = ToNumber(wrappedCompareFn(x, y));
return v !== v ? 0 : v;
};
}
if (itemsLen > 1)
MergeSort(items, itemsLen, sortCompare);
var A = ArraySpeciesCreate(O, 0);
A.length = len;
for (var j = 0; j < itemsLen; j++)
_DefineDataProperty(A, j, items[j]);
return A;
}