blob: 637827ae0d58a783bac1fc56a3b69f871e186a20 [file] [log] [blame]
* Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
* for details. All rights reserved. Use of this source code is governed by a
* BSD-style license that can be found in the LICENSE file.
* @assertion
* @description Test for bug <a href="">34231</a>:
* Nodes in XPath result snapshots should keep JS wrappers alive.
* This page tests for proper invalidation of a node's event listeners.
import "dart:html";
import "../../../Utils/expect.dart";
const String htmlEL = r'''
<div id="div"></div>
void allocate() {
for (var i = 0; i < 100000; ++i)
new String.fromCharCode(100+i);
void main() {
document.body.appendHtml(htmlEL, treeSanitizer: NodeTreeSanitizer.trusted);
XPathEvaluator evaluator = new XPathEvaluator();
// Fill the heap with event listeners...
var a = [];
for (var i = 0; i < 10000; ++i)
a.add(() { });
// ...followed by a DOM node wrapper
var div = document.getElementById("div");
// Add the listeners to the DOM node.
for (var i = 0; i < a.length; ++i)
div.addEventListener("click", a[i], false);
// Eliminate JS references to the div and its listeners, but keep a reference to the div in an XPath query.
var query = evaluator.evaluate("//div", document.documentElement, null,
div = null;
a = null;
// Potentially overwrite listeners with strings, but don't overwrite div.
// Fire listeners and see if we crash.
Event event = new Event('MouseEvent', canBubble: true, cancelable: true);
print("PASS: You didn't crash.");