function test()
{
// Create a tree walker with a filter which creates a cycle... var tw = document.createTreeWalker(document, NodeFilter.SHOW_ALL,
function(n)
{
// force the closure to contain the
// global object, in case a future
// optimization might minimize the
// function's captured environment
if ("foo" + window == "fooPIRATES!")
return NodeFilter.FILTER_ACCEPT;
return NodeFilter.FILTER_REJECT;
});
// That should have been enough to create a leak, but we should do at least
// a couple tests while we're here so that this document doesn't show up as
// having no tests pass *or* fail.
ok(tw.firstChild() === null, "shouldn't be a first child");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.lastChild() === null, "shouldn't be a last child");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.nextNode() === null, "shouldn't be a next node");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.nextSibling() === null, "shouldn't be a next sibling");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.parentNode() === null, "shouldn't be a parent node");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.previousNode() === null, "shouldn't be a previous node");
ok(tw.currentNode === document, "should be unchanged");
ok(tw.previousSibling() === null, "shouldn't be a previous sibling");
ok(tw.currentNode === document, "should be unchanged");
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.
