proto-from-ctor-realm.js (1163B)
1 // Copyright (C) 2016 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 esid: sec-function-p1-p2-pn-body 5 description: Default [[Prototype]] value derived from realm of the newTarget 6 info: | 7 [...] 8 5. Return ? CreateDynamicFunction(C, NewTarget, "normal", args). 9 10 19.2.1.1.1 Runtime Semantics: CreateDynamicFunction 11 12 [...] 13 2. If kind is "normal", then 14 [...] 15 c. Let fallbackProto be "%FunctionPrototype%". 16 [...] 17 22. Let proto be ? GetPrototypeFromConstructor(newTarget, fallbackProto). 18 [...] 19 20 9.1.14 GetPrototypeFromConstructor 21 22 [...] 23 3. Let proto be ? Get(constructor, "prototype"). 24 4. If Type(proto) is not Object, then 25 a. Let realm be ? GetFunctionRealm(constructor). 26 b. Let proto be realm's intrinsic object named intrinsicDefaultProto. 27 [...] 28 features: [cross-realm, Reflect] 29 ---*/ 30 31 var other = $262.createRealm().global; 32 var C = new other.Function(); 33 C.prototype = null; 34 35 var o = Reflect.construct(Function, [], C); 36 37 assert.sameValue(Object.getPrototypeOf(o), other.Function.prototype); 38 39 reportCompare(0, 0);