| // Copyright (C) 2019 Leo Balter. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-Intl.DisplayNames |
| description: > |
| Return abrupt from Get Prototype from a custom NewTarget |
| info: | |
| Intl.DisplayNames ([ locales [ , options ]]) |
| |
| 1. If NewTarget is undefined, throw a TypeError exception. |
| 2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%", |
| « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »). |
| ... |
| |
| OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] ) |
| |
| ... |
| 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto). |
| ... |
| |
| GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto ) |
| |
| 3. Let proto be ? Get(constructor, "prototype"). |
| 4. If Type(proto) is not Object, then |
| a. Let realm be ? GetFunctionRealm(constructor). |
| b. Set proto to realm's intrinsic object named intrinsicDefaultProto. |
| 5. Return proto. |
| features: [Intl.DisplayNames, Reflect, Proxy] |
| ---*/ |
| |
| var custom = new Proxy(new Function(), { |
| get(target, key) { |
| if (key === 'prototype') { |
| throw new Test262Error(); |
| } |
| |
| return target[key]; |
| } |
| }); |
| |
| assert.throws(Test262Error, () => { |
| Reflect.construct(Intl.DisplayNames, [], custom); |
| }); |