gecko/browser/devtools/debugger/test/doc_closure-optimized-out.html

35 lines
1.1 KiB
HTML

<!DOCTYPE HTML>
<html>
<head>
<meta charset='utf-8'/>
<title>Debugger Test for Inspecting Optimized-Out Variables</title>
<!-- Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ -->
<script type="text/javascript">
window.addEventListener("load", function onload() {
window.removeEventListener("load", onload);
function clickHandler(event) {
button.removeEventListener("click", clickHandler, false);
function outer(arg) {
var upvar = arg * 2;
// The inner lambda only aliases arg, so the frontend alias analysis decides
// that upvar is not aliased and is not in the CallObject.
return function () {
arg += 2;
};
}
var f = outer(42);
f();
}
var button = document.querySelector("button");
button.addEventListener("click", clickHandler, false);
});
</script>
</head>
<body>
<button>Click me!</button>
</body>
</html>