Updates:
Status: WorkingAsIntended
Comment #2 on issue 2549 by [email protected]: Re-throwing any type of
error should keep the original line number, filename and stack trace intact.
http://code.google.com/p/v8/issues/detail?id=2549
Yes. This is working as intended. Only the Error() constructor captures the
stack trace (unless you use the stack trace API, as already noted). For all
other objects or primitives thrown, the stack trace is captured at
(re-)throw site. The reason is that for example in
try {
(function() { throw 2; })();
} catch (e) {
if (e == 2) throw 2;
}
there is no way to correctly decide whether the eventually thrown number 2
is being rethrown or not. There is also no elegant way to attach a stack
trace to a primitive value.
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