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<p>This page tests whether an exception thrown from a function that has lazily
constructed an activation properly tears off the function's activation.
</p>
<p>If the test passes, you'll see a PASS message below.
</p>
<pre id="console"></pre>
<script>
function log(s)
{
document.getElementById("console").appendChild(document.createTextNode(s + "\n"));
}
function shouldBe(aDescription, a, b)
{
if (a === b) {
log("PASS: " + aDescription + " should be " + b + " and is.");
} else {
log("FAIL: " + aDescription + " should be " + b + " but instead is " + a + ".");
}
}
if (window.layoutTestController)
layoutTestController.dumpAsText();
try {
// Lazily create an activation for a function that otherwise wouldn't need one, then throw.
(function f(x) {
throw f.arguments;
}(1));
} catch(args) {
// Call another function to overwrite the stack.
(function (a, b, c, d, e, f, g, h, i, j, k, l) { })();
// Test whether args's activation was properly torn off. If it wasn't, the
// previous call should have clobbered its data.
shouldBe("args[0]", args[0], 1);
}
</script>
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