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

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 // for-of on an Array consults the prototype chain when it encounters a hole.
michael@0 2
michael@0 3 load(libdir + "iteration.js");
michael@0 4
michael@0 5 var m = {1: 'peek'};
michael@0 6 var a = [0, , 2, 3];
michael@0 7 a.__proto__ = m;
michael@0 8 var log = [];
michael@0 9 Object.prototype[std_iterator] = Array.prototype[std_iterator];
michael@0 10 for (var x of a)
michael@0 11 log.push(x);
michael@0 12 assertEq(log[1], 'peek');
michael@0 13 assertEq(log.join(), "0,peek,2,3");

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