| // META: global=window,worker |
| |
| // https://heycam.github.io/webidl/#dfn-attribute-getter (step 1.1.2.1) |
| // https://heycam.github.io/webidl/#dfn-attribute-setter (step 4.5.1) |
| // https://heycam.github.io/webidl/#dfn-create-operation-function (step 2.1.2.1) |
| |
| const notGlobalObject = Object.create(Object.getPrototypeOf(globalThis)); |
| |
| test(() => { |
| assert_throws_js(TypeError, () => { Object.create(globalThis).self; }); |
| assert_throws_js(TypeError, () => { getGlobalPropertyDescriptor("location").get.call(notGlobalObject); }); |
| assert_throws_js(TypeError, () => { Reflect.get(globalThis, "navigator", notGlobalObject); }); |
| assert_throws_js(TypeError, () => { new Proxy(globalThis, {}).onerror; }); |
| }, "Global object's getter throws when called on incompatible object"); |
| |
| test(() => { |
| assert_throws_js(TypeError, () => { Object.create(globalThis).origin = origin; }); |
| assert_throws_js(TypeError, () => { getGlobalPropertyDescriptor("onerror").set.call(notGlobalObject, onerror); }); |
| assert_throws_js(TypeError, () => { Reflect.set(globalThis, "onoffline", onoffline, notGlobalObject); }); |
| assert_throws_js(TypeError, () => { new Proxy(globalThis, {}).ononline = ononline; }); |
| }, "Global object's setter throws when called on incompatible object"); |
| |
| test(() => { |
| assert_throws_js(TypeError, () => { Object.create(globalThis).setInterval(() => {}, 100); }); |
| assert_throws_js(TypeError, () => { clearTimeout.call(notGlobalObject, () => {}); }); |
| assert_throws_js(TypeError, () => { Reflect.apply(btoa, notGlobalObject, [""]); }); |
| assert_throws_js(TypeError, () => { new Proxy(globalThis, {}).removeEventListener("foo", () => {}); }); |
| }, "Global object's operation throws when called on incompatible object"); |
| |
| if (typeof document !== "undefined") { |
| test(() => { |
| assert_throws_js(TypeError, () => { Object.getOwnPropertyDescriptor(window, "document").get.call(document.all); }); |
| }, "Global object's getter throws when called on incompatible object (document.all)"); |
| |
| test(() => { |
| assert_throws_js(TypeError, () => { Object.getOwnPropertyDescriptor(window, "name").set.call(document.all); }); |
| }, "Global object's setter throws when called on incompatible object (document.all)"); |
| |
| test(() => { |
| assert_throws_js(TypeError, () => { focus.call(document.all); }); |
| }, "Global object's operation throws when called on incompatible object (document.all)"); |
| } |
| |
| // An engine might have different code path for calling a function from outer scope to implement step 1.b.iii of https://tc39.es/ecma262/#sec-evaluatecall |
| const locationGetter = getGlobalPropertyDescriptor("location").get; |
| test(() => { |
| assert_equals(getGlobalPropertyDescriptor("self").get.call(null), self); |
| assert_equals((() => locationGetter())(), location); |
| assert_equals(Reflect.get(globalThis, "origin", null), origin); |
| assert_equals(Reflect.get(globalThis, "onoffline", undefined), onoffline); |
| }, "Global object's getter works when called on null / undefined"); |
| |
| test(() => { |
| const fn = () => {}; |
| |
| // origin is [Replaceable] |
| getGlobalPropertyDescriptor("origin").set.call(null, "foo"); |
| assert_equals(origin, "foo"); |
| getGlobalPropertyDescriptor("onerror").set.call(undefined, fn); |
| assert_equals(onerror, fn); |
| assert_true(Reflect.set(globalThis, "onoffline", fn, null)); |
| assert_equals(onoffline, fn); |
| |
| const ononlineSetter = getGlobalPropertyDescriptor("ononline").set; |
| (() => { ononlineSetter(fn); })(); |
| assert_equals(ononline, fn); |
| }, "Global object's setter works when called on null / undefined"); |
| |
| // An engine might have different code path for calling a function from outer scope to implement step 1.b.iii of https://tc39.es/ecma262/#sec-evaluatecall |
| const __addEventListener = addEventListener; |
| test(() => { |
| assert_equals(atob.call(null, ""), ""); |
| assert_equals(typeof (0, setInterval)(() => {}, 100), "number"); |
| |
| (() => { __addEventListener("foo", event => { event.preventDefault(); }); })(); |
| const __dispatchEvent = dispatchEvent; |
| (() => { assert_false(__dispatchEvent(new Event("foo", { cancelable: true }))); })(); |
| }, "Global object's operation works when called on null / undefined"); |
| |
| function getGlobalPropertyDescriptor(key) { |
| for (let obj = globalThis; obj; obj = Object.getPrototypeOf(obj)) { |
| const desc = Object.getOwnPropertyDescriptor(obj, key); |
| if (desc) return desc; |
| } |
| } |