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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/Array/sort-typedarray-with-own-length.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/sort-typedarray-with-own-length.js b/js/src/tests/non262/Array/sort-typedarray-with-own-length.js new file mode 100644 index 0000000000..18e4ea5cd6 --- /dev/null +++ b/js/src/tests/non262/Array/sort-typedarray-with-own-length.js @@ -0,0 +1,33 @@ +function sortTypedArray(comparator) { + // Create a typed array with three elements, but also add an own "length" + // property with the value `2` to restrict the range of elements which + // will be sorted by Array.prototype.sort(). + var ta = new Int8Array([3, 2, 1]); + Object.defineProperty(ta, "length", {value: 2}); + + // Sort with Array.prototype.sort(), not %TypedArray%.prototype.sort()! + Array.prototype.sort.call(ta, comparator); + + return ta; +} + +// Comparators using the form |return a - b| are special-cased in +// Array.prototype.sort(). +function optimizedComparator(a, b) { + return a - b; +} + +// This comparator doesn't compile to the byte code sequence which gets +// special-cased in Array.prototype.sort(). +function nonOptimizedComparator(a, b) { + var d = a - b; + return d; +} + +// Both comparators should produce the same result. +assertEq(sortTypedArray(optimizedComparator).toString(), "2,3,1"); +assertEq(sortTypedArray(nonOptimizedComparator).toString(), "2,3,1"); + + +if (typeof reportCompare === 'function') + reportCompare(0, 0); |