author Jan de Mooij <jdemooij@mozilla.com>
Sat, 12 Jan 2019 10:50:04 +0000
changeset 453631 cfa1c48c717048f00eb4811b5719cd716eb1e5b3
parent 55224 ab9936edd2ad76f19824ab52057e364d924701a0
child 469642 0d9b9b96f5475adbed73922da696aeff7cbbaed3
permissions -rw-r--r--
Bug 1518753 part 5 - Stop using JSProtoKey for initial shapes. r=tcampbell I added this optimization in bug 1299107 to share more shapes across compartments. Unfortunately this doesn't play well with same-compartment realms (ICs can misbehave) because it relies on compartments being isolated from each other. I think we should remove this optimization: * Fixing the IC issue is impossible without deoptimizing everything. * I added it mainly for chrome globals. The shared-JSM-global work has eliminated the need for this there. * Same-compartment realms win memory back by eliminating CCWs etc. * It's quite a lot of complicated code. Differential Revision: https://phabricator.services.mozilla.com/D16170

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<window title="Mozilla Bug 593307"
  width="100" height="100"

  <script type="application/javascript"
          src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js" />

<body xmlns="http://www.w3.org/1999/xhtml" id="body">

<script class="testbody" type="application/javascript">

function onload()
  var SimpleTest = window.opener.SimpleTest;
  SimpleTest.ok(window.screenX >= 0, "centerscreen window should not start offscreen (X coordinate)");
  SimpleTest.ok(window.screenY >= 0, "centerscreen window should not start offscreen (Y coordinate)");