tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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proto-from-ctor-realm.js (1074B)

      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-promise-executor
      5 description: Default [[Prototype]] value derived from realm of the newTarget
      6 info: |
      7    [...]
      8    3. Let promise be ? OrdinaryCreateFromConstructor(NewTarget,
      9       "%PromisePrototype%", « [[PromiseState]], [[PromiseResult]],
     10       [[PromiseFulfillReactions]], [[PromiseRejectReactions]],
     11       [[PromiseIsHandled]] »).
     12    [...]
     13 
     14    9.1.14 GetPrototypeFromConstructor
     15 
     16    [...]
     17    3. Let proto be ? Get(constructor, "prototype").
     18    4. If Type(proto) is not Object, then
     19       a. Let realm be ? GetFunctionRealm(constructor).
     20       b. Let proto be realm's intrinsic object named intrinsicDefaultProto.
     21    [...]
     22 features: [cross-realm, Reflect]
     23 ---*/
     24 
     25 var other = $262.createRealm().global;
     26 var C = new other.Function();
     27 C.prototype = null;
     28 
     29 var o = Reflect.construct(Promise, [function() {}], C);
     30 
     31 assert.sameValue(Object.getPrototypeOf(o), other.Promise.prototype);
     32 
     33 reportCompare(0, 0);