Great explanation. Although, It took novice-me quite some time to dig in
and digest. V8 is really "pretty large and complex" just as you said. The
topic of V8 deserve full-time dedication in order to catch up. So, for now
I am happy with the little bit of under the hood knowledge I just obtain.
Just FYI, your fix for my code to mitigate the V8 bug works flawlessly.
Just to check if my understanding of the 42 check is correct, I modify it a
little bit (shorter, less typing):
function printST(x) {
if(!x) {
return printST(1);
}
var obj = {};
Error.captureStackTrace(obj, printST);
log('\tStack length: ' + obj.stack.length);
}
It also works just like your fix. Any chance the C++ fix (not the JS above)
going to upstream Node.js, or better V8?
I am interested in call stack (also stack trace API) because I am writing a
module (for my private project) that organize and execute a arbitrary long
sequence of functions, using next() callback to signal completion at each
one, inspired by Connect pipeline. But my module encourage both sync and
async style of continuation. Therefore, I want to find a way to mitigate
call stack growth potential problem when doing sync. And also a way to
correctly test it if I could figure out a solution (It's a work in progress
though).
I thought of using nextTick() as a fast and reliable built-in trampoline
(to eliminate tail-call). But what I think I need is a way to insert a
function to the head of the queue (like stack), not the back as nextTick()
does. The queue output direction remains the same. The rationale is that I
want to ensure the next function will always be executed right after the
current one, but before everything else. Do you have any advice on this?
Lastly, a tiny problem, any ideas why my code kept not being highlighted
although I used the "Highlight code syntax" button before entering it? It
annoys and also embarrasses me to post my code for others to see but have
no highlight.
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