tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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reject-deferred.js (1074B)

      1 // |reftest| async
      2 // Copyright (C) 2016 the V8 project authors. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 /*---
      5 description: Rejecting through deferred invocation of the provided resolving function
      6 es6id: 25.4.4.3
      7 info: |
      8    [...]
      9    6. Let promiseCapability be NewPromiseCapability(C).
     10    [...]
     11    11. Let result be PerformPromiseRace(iteratorRecord, promiseCapability, C).
     12    [...]
     13 
     14    25.4.4.3.1 Runtime Semantics: PerformPromiseRace
     15    1. Repeat
     16       [...]
     17       j. Let result be Invoke(nextPromise, "then",
     18          «promiseCapability.[[Resolve]], promiseCapability.[[Reject]]»).
     19 
     20    25.4.1.3.1 Promise Reject Functions
     21    [...]
     22    6. Return RejectPromise(promise, reason).
     23 flags: [async]
     24 ---*/
     25 
     26 var thenable = {
     27  then: function(_, reject) {
     28    new Promise(function(resolve) {
     29        resolve();
     30      })
     31      .then(function() {
     32        reject();
     33      });
     34  }
     35 };
     36 
     37 Promise.race([thenable])
     38  .then(function() {
     39    $DONE('The promise should not be fulfilled.');
     40  }, function() {
     41    $DONE();
     42  });