for-in-array-mode.js [plain text]
var funcArgAndBodyStr =
"(arr) {" + "\n" +
" var sum = 0;" + "\n" +
" for (var i in arr)" + "\n" +
" sum += arr[i];" + "\n" +
" return sum;" + "\n" +
"}";
var testData = {
"ArrayWithUndecided": { in: [], out: 0 },
"ArrayWithInt32": { in: [ 1, 2, 3 ], out: 6 },
"ArrayWithContiguous": { in: [ "a", "b", "c" ], out: "0abc" },
"ArrayWithDouble": { in: [10.25, 20.25, 30.25 ], out: 60.75 },
"ArrayWithArrayStorage": { in: [ "a", "b", "c" ], out: "0abc1000" }, "ArrayWithSlowPutArrayStorage": { in: [ "a", "b", "c" ], out: "0abc10" },
"NonArrayWithUndecided": { in: {}, out: 0 },
"NonArrayWithInt32": { in: { "0":1, "1":2, "2":3 }, out: 6 },
"NonArrayWithContiguous": { in: { "0":"a", "1":"b", "2":"c" }, out: "0abc" },
"NonArrayWithDouble": { in: { "0":10.25, "1":20.25, "2":30.25 }, out: 60.75 },
"NonArrayWithArrayStorage": { in: { "0":"a", "1":"b", "2":"c" }, out: "0abc1000" }, "NonArrayWithSlowPutArrayStorage": { in: { "0":"a", "1":"b", "2":"c" }, out: "0abc10" }, };
var o = { a: 10 };
Object.defineProperties(o, {
"0": {
get: function() { return this.a; },
set: function(x) { this.a = x; },
},
});
testData["ArrayWithArrayStorage"].in[1000] = 1000;
testData["ArrayWithSlowPutArrayStorage"].in.__proto__ = o;
testData["NonArrayWithArrayStorage"].in["1000"] = 1000;
testData["NonArrayWithSlowPutArrayStorage"].in.__proto__ = o;
var numberOfFailures = 0;
function test(name, data) {
eval("function " + name + funcArgAndBodyStr);
noInline(name);
var failed = false;
var previousResult;
for (var i = 0; i < 10000; ++i) {
var expected = data.out;
var actual = eval(name + "(data.in)");
if ((actual != expected) && (actual != previousResult)) {
print("FAIL: " + name + ": expected: " + expected + ", actual: " + actual + ", starting @ loop iteration " + i);
previousResult = actual;
failed = true;
numberOfFailures++;
}
}
}
for (name in testData)
test(name, testData[name]);
if (numberOfFailures)
throw "Error: number of failures found: " + numberOfFailures;