blob: 8831450c70b51f26c51beec1fef040e542cf287b [file] [log] [blame]
function shouldBe(actual, expected)
{
if (actual !== expected)
throw new Error('bad value: ' + actual);
}
function shouldThrow(func, errorMessage) {
var errorThrown = false;
var error = null;
try {
func();
} catch (e) {
errorThrown = true;
error = e;
}
if (!errorThrown)
throw new Error('not thrown');
if (String(error) !== errorMessage)
throw new Error(`bad error: ${String(error)}`);
}
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i) {
shouldBe(target({}), Object.prototype);
shouldBe(target((function() {}).prototype), Object.prototype);
shouldBe(target((class {}).prototype), Object.prototype);
}
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
var F = function() {};
var C = class {};
for (var i = 0; i < 1e5; ++i) {
shouldBe(target(new F()), F.prototype);
shouldBe(target(new C()), C.prototype);
}
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i) {
shouldBe(target(Array.prototype), Object.prototype);
shouldBe(target([]), Array.prototype);
shouldBe(target(Array(3)), Array.prototype);
shouldBe(target(new Array(1, 2, 3)), Array.prototype);
}
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i) {
shouldBe(target(Object.prototype), null);
shouldBe(target(Object.create(null)), null);
shouldBe(target(Object.setPrototypeOf({}, null)), null);
shouldBe(target({__proto__: null}), null);
}
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i) {
shouldBe(target(function() {}), Function.prototype);
shouldBe(target(class {}), Function.prototype);
shouldBe(target(() => {}), Function.prototype);
}
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
var regExp = /(?:)/;
var date = new Date();
var map = new Map();
var weakSet = new WeakSet();
var promise = Promise.resolve(1);
for (var i = 0; i < 1e5; ++i) {
shouldBe(target(regExp), RegExp.prototype);
shouldBe(target(date), Date.prototype);
shouldBe(target(map), Map.prototype);
shouldBe(target(weakSet), WeakSet.prototype);
shouldBe(target(promise), Promise.prototype);
}
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
function makePolyProtoObject() {
function foo() {
class C {
constructor() {
this._field = 42;
}
}
lastProto = C.prototype;
return new C();
}
for (let i = 0; i < 1000; ++i)
foo();
return foo();
}
var polyProtoObject = makePolyProtoObject();
for (var i = 0; i < 1e5; ++i)
shouldBe(target(polyProtoObject), polyProtoObject.constructor.prototype);
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
var proxyPrototype = {};
var proxy = new Proxy({}, {
getPrototypeOf: () => proxyPrototype,
});
for (var i = 0; i < 1e5; ++i)
shouldBe(target(proxy), proxyPrototype);
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i) {
shouldThrow(() => target(null), `TypeError: null is not an object (evaluating 'Object.getPrototypeOf(object)')`);
shouldThrow(() => target(undefined), `TypeError: undefined is not an object (evaluating 'Object.getPrototypeOf(object)')`);
}
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i)
shouldBe(target("Cocoa"), String.prototype);
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i)
shouldBe(target(42), Number.prototype);
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i)
shouldBe(target(42.195), Number.prototype);
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i)
shouldBe(target(true), Boolean.prototype);
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i)
shouldBe(target(Symbol()), Symbol.prototype);
}());
(function () {
function target(object)
{
return Object.getPrototypeOf(object);
}
noInline(target);
for (var i = 0; i < 1e5; ++i) {
shouldBe(target("Cocoa"), String.prototype);
shouldBe(target(42), Number.prototype);
shouldBe(target(42.195), Number.prototype);
shouldBe(target(true), Boolean.prototype);
shouldBe(target(Symbol()), Symbol.prototype);
shouldBe(target(1n), BigInt.prototype);
}
}());