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function testSelfHosted() {
var g = newGlobal({sameCompartmentAs: this});
var arr = g.evaluate("[1, 2]");
for (var i = 0; i < 20; i++) {
var mapped = Array.prototype.map.call(arr, x => x + 1);
assertEq(mapped.constructor, Array);
}
}
testSelfHosted();
function testNative() {
var g = newGlobal({sameCompartmentAs: this});
var arr = g.evaluate("[1, 2, 3, 4]");
for (var i = 0; i < 20; i++) {
var slice = Array.prototype.slice.call(arr, 0, 3);
assertEq(slice.constructor, Array);
}
}
testNative();
function testIntrinsic() {
var g1 = newGlobal({sameCompartmentAs: this});
var g2 = newGlobal();
var IsCrossRealmArrayConstructor = getSelfHostedValue("IsCrossRealmArrayConstructor");
for (var i = 0; i < 20; i++) {
assertEq(IsCrossRealmArrayConstructor(Array), false);
assertEq(IsCrossRealmArrayConstructor(Math), false);
assertEq(IsCrossRealmArrayConstructor(() => 1), false);
assertEq(IsCrossRealmArrayConstructor(g1.Array), true);
assertEq(IsCrossRealmArrayConstructor(g2.Array), true);
assertEq(IsCrossRealmArrayConstructor(g1.assertEq), false);
assertEq(IsCrossRealmArrayConstructor(g2.assertEq), false);
}
}
testIntrinsic();