Hi again, if you are still interested, I found another hacky fix in JS.
Instead of having to call the printST() twice, I could just use
arguments.callee to pass to Error.captureStackTrace(). The printST() now
become as simple as this:
function printST(bl) {
var obj = {};
Error.captureStackTrace(obj, arguments.callee);
log('\tStack length: ' + obj.stack.length);
}
I don't know how it works, but my theory is that there are some special
internal variables attached to arguments that makes it work. I checked,
printST === arguments.callee is true but some how using arguments.callee
instead of direct function name make a whole lot difference.
Another side detail, that fix didn't just come out of the sky, I saw it in
callsite <https://github.com/visionmedia/callsite/blob/master/index.js#L6>
module
of TJ Holowaychuk. I thought I should give it a try, and it magically
works. Somehow he had thought it through and come up with the beautiful
solution. My hat's off to him. This bug also affect stack-trace
<https://github.com/felixge/node-stack-trace> module of Felix Geisendörfer
but I don't have enough confidence to send him a PR. May be I will just
send him an Issue.
You don't need to answer this. I just found something interesting and I
thought maybe you would want to know.
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