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// Test corner cases of for-of iteration over Arrays.
// The current SetObject::construct method uses a ForOfIterator to extract
// values from the array, so we use that mechanism to test ForOfIterator here.
// Test the properties and prototype of a generator object.
function TestManySmallArrays() {
function doIter(f, arr) {
return f(...new Set(arr));
}
function fun(a, b, c) {
var result = 0;
for (var i = 0; i < arguments.length; i++)
result += arguments[i];
return result;
}
var TRUE_SUM = 0;
var N = 100;
var M = 3;
var sum = 0;
for (var i = 0; i < N; i++) {
var arr = new Array(M);
for (var j = 0; j < M; j++) {
arr[j] = j;
TRUE_SUM += j;
}
sum += doIter(fun, arr);
}
assertEq(sum, TRUE_SUM);
}
TestManySmallArrays();
// Test the properties and prototype of a generator object.
function TestSingleSmallArray() {
function doIter(f, arr) {
return f(...new Set(arr));
}
function fun(a, b, c) {
var result = 0;
for (var i = 0; i < arguments.length; i++)
result += arguments[i];
return result;
}
var TRUE_SUM = 0;
var N = 100;
var M = 3;
var arr = new Array(M);
for (var j = 0; j < M; j++) {
arr[j] = j;
TRUE_SUM += j;
}
TRUE_SUM *= N;
var sum = 0;
for (var i = 0; i < N; i++) {
sum += doIter(fun, arr);
}
assertEq(sum, TRUE_SUM);
}
TestSingleSmallArray();
function TestChangeArrayPrototype() {
function doIter(f, arr) {
return f(...new Set(arr));
}
function fun(a, b, c) {
var result = 0;
for (var i = 0; i < arguments.length; i++)
result += arguments[i];
return result;
}
var Proto1 = Object.create(Array.prototype);
var TRUE_SUM = 0;
var N = 100;
var MID = N/2;
var M = 3;
var arr = new Array(M);
var ARR_SUM = 0;
for (var j = 0; j < M; j++) {
arr[j] = j;
ARR_SUM += j;
}
var sum = 0;
for (var i = 0; i < N; i++) {
sum += doIter(fun, arr);
if (i == MID)
arr.__proto__ = Proto1;
TRUE_SUM += ARR_SUM;
}
assertEq(sum, TRUE_SUM);
}
TestChangeArrayPrototype();
function TestChangeManyArrayShape() {
function doIter(f, arr) {
return f(...new Set(arr));
}
function fun(a, b, c) {
var result = 0;
for (var i = 0; i < arguments.length; i++)
result += arguments[i];
return result;
}
var TRUE_SUM = 0;
var N = 100;
var MID = N/2;
var M = 3;
var sum = 0;
for (var i = 0; i < N; i++) {
var arr = new Array(M);
var ARR_SUM = 0;
for (var j = 0; j < M; j++) {
arr[j] = j;
ARR_SUM += j;
}
arr['v_' + i] = i;
sum += doIter(fun, arr);
TRUE_SUM += ARR_SUM;
}
assertEq(sum, TRUE_SUM);
}
TestChangeManyArrayShape();
if (typeof reportCompare === "function")
reportCompare(true, true);
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