tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

Set-iterator-proxies-2.js (897B)

      1 // map.iterator() and iter.next() are non-generic but work on cross-compartment wrappers.
      2 
      3 load(libdir + "asserts.js");
      4 load(libdir + "iteration.js");
      5 
      6 var g = newGlobal();
      7 
      8 var iterator_fn = Set.prototype[Symbol.iterator];
      9 assertThrowsInstanceOf(function () { iterator_fn.call({}); }, TypeError);
     10 assertThrowsInstanceOf(function () { iterator_fn.call(new Map()); }, TypeError);
     11 var setw = g.eval("new Set(['x', 'y'])");
     12 assertIteratorNext(iterator_fn.call(setw), "x");
     13 
     14 var next_fn = (new Set())[Symbol.iterator]().next;
     15 assertThrowsInstanceOf(function () { next_fn.call({}); }, TypeError);
     16 assertThrowsInstanceOf(function () { next_fn.call((new Map())[Symbol.iterator]()); }, TypeError);
     17 var iterw = setw[Symbol.iterator]();
     18 assertIteratorResult(next_fn.call(iterw), "x", false);
     19 assertIteratorResult(next_fn.call(iterw), "y", false);
     20 assertIteratorResult(next_fn.call(iterw), undefined, true);