tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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iterator-next-failure.js (627B)

      1 // Copyright (C) 2015 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-map-iterable
      5 description: >
      6  The iterator is closed when iterable `next` throws an error.
      7 info: |
      8  Map ( [ iterable ] )
      9 
     10  ...
     11  9. Repeat
     12    a. Let next be IteratorStep(iter).
     13    b. ReturnIfAbrupt(next).
     14 features: [Symbol.iterator]
     15 ---*/
     16 
     17 var iterable = {};
     18 iterable[Symbol.iterator] = function() {
     19  return {
     20    next: function() {
     21      throw new Test262Error();
     22    }
     23  };
     24 };
     25 
     26 assert.throws(Test262Error, function() {
     27  new Map(iterable);
     28 });
     29 
     30 reportCompare(0, 0);