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Issue 1493023004: Add use counters for NodeFilter being a function or an object (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years ago
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1 <!DOCTYPE html>
2 <title>NodeFilter UseCounters</title>
3 <script src="../../resources/testharness.js"></script>
4 <script src="../../resources/testharnessreport.js"></script>
5 <script>
6 test(function() {
7 var NodeFilterIsFunction = 1059; // From UseCounter.h
8
9 assert_false(internals.isUseCounted(document, NodeFilterIsFunction));
10
11 var filterCalled = false;
12 var filter = function() {
13 assert_true(internals.isUseCounted(document, NodeFilterIsFunction));
14 filter.called = true;
15 };
16
17 var iterator = document.createNodeIterator(document, 0, filter);
18 iterator.filter.acceptNode(document);
19 assert_true(filter.called);
20 }, 'NodeFilter UseCounter for callback function');
21
22 test(function() {
23 var NodeFilterIsObject = 1060; // From UseCounter.h
24
25 assert_false(internals.isUseCounted(document, NodeFilterIsObject));
26
27 var filter = {
28 acceptNodeCalled: false,
29 acceptNode: function() {
30 assert_true(internals.isUseCounted(document, NodeFilterIsObject));
31 filter.called = true;
32 }
33 };
34
35 var iterator = document.createNodeIterator(document, 0, filter);
36 iterator.filter.acceptNode(document);
37 assert_true(filter.called);
38 }, 'NodeFilter UseCounter for callback function');
39 </script>
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