tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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proto-from-ctor-realm.js (936B)

      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-string-constructor-string-value
      5 description: Default [[Prototype]] value derived from realm of the newTarget
      6 info: |
      7    [...]
      8    4. Return ? StringCreate(s, ? GetPrototypeFromConstructor(NewTarget,
      9       "%StringPrototype%")).
     10 
     11    9.1.14 GetPrototypeFromConstructor
     12 
     13    [...]
     14    3. Let proto be ? Get(constructor, "prototype").
     15    4. If Type(proto) is not Object, then
     16       a. Let realm be ? GetFunctionRealm(constructor).
     17       b. Let proto be realm's intrinsic object named intrinsicDefaultProto.
     18    [...]
     19 features: [cross-realm, Reflect]
     20 ---*/
     21 
     22 var other = $262.createRealm().global;
     23 var C = new other.Function();
     24 C.prototype = null;
     25 
     26 var o = Reflect.construct(String, [], C);
     27 
     28 assert.sameValue(Object.getPrototypeOf(o), other.String.prototype);
     29 
     30 reportCompare(0, 0);