tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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proto-from-ctor-realm.js (957B)

      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-object-value
      5 description: Default [[Prototype]] value derived from realm of the newTarget
      6 info: |
      7    1. If NewTarget is neither undefined nor the active function, then
      8       a. Return ? OrdinaryCreateFromConstructor(NewTarget, "%ObjectPrototype%").
      9 
     10    9.1.14 GetPrototypeFromConstructor
     11 
     12    [...]
     13    3. Let proto be ? Get(constructor, "prototype").
     14    4. If Type(proto) is not Object, then
     15       a. Let realm be ? GetFunctionRealm(constructor).
     16       b. Let proto be realm's intrinsic object named intrinsicDefaultProto.
     17    [...]
     18 features: [cross-realm, Reflect]
     19 ---*/
     20 
     21 var other = $262.createRealm().global;
     22 var C = new other.Function();
     23 C.prototype = null;
     24 
     25 var o = Reflect.construct(Object, [], C);
     26 
     27 assert.sameValue(Object.getPrototypeOf(o), other.Object.prototype);
     28 
     29 reportCompare(0, 0);