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js/src/jit-test/tests/for-of/array-holes-4.js@deefc01c0e14

js/src/jit-test/tests/for-of/array-holes-4.js

Thu, 15 Jan 2015 21:03:48 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 15 Jan 2015 21:03:48 +0100

branch

TOR_BUG_9701

changeset 11

deefc01c0e14

permissions

-rw-r--r--

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

 // for-of on an Array consults the prototype chain when it encounters a hole.

 load(libdir + "iteration.js");

 var m = {1: 'peek'};

 var a = [0, , 2, 3];

 a.__proto__ = m;

 var log = [];

 Object.prototype[std_iterator] = Array.prototype[std_iterator];

 for (var x of a)

     log.push(x);

 assertEq(log[1], 'peek');

 assertEq(log.join(), "0,peek,2,3");