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/**
* Any copyright is dedicated to the Public Domain.
*/
// This function should never run on a too much recursion error.
onerror = function (event) {
postMessage(event.message);
};
// Pure JS recursion
function recurse() {
recurse();
}
// JS -> C++ -> JS -> C++ recursion
function recurse2() {
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function () {
xhr.open("GET", "nonexistent.file");
};
xhr.open("GET", "nonexistent.file");
}
var messageCount = 0;
onmessage = function (event) {
switch (++messageCount) {
case 2:
recurse2();
// An exception thrown from an event handler like xhr.onreadystatechange
// should not leave an exception pending in the code that generated the
// event.
postMessage("Done");
return;
case 1:
recurse();
throw "Exception should have prevented us from getting here!";
default:
throw "Weird number of messages: " + messageCount;
}
// eslint-disable-next-line no-unreachable
throw "Impossible to get here!";
};