[Webkit-unassigned] [Bug 13646] implement Error.prototype.stack

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=13646





------- Comment #7 from eric at webkit.org  2009-05-11 21:28 PDT -------
For what it's worth, V8 has an internal bug about this:
http://b/issue?id=1128410  (The only reason it's internal is that I was filed 6
months before Chrome launched.  It really should be moved into a public bug.)

The conclusion was originally drawn that creating a stack trace on every
exception throw was too expensive, and that it would be a large perf-hit for
web apps which throw exceptions.

The way that WebCore/JSC seems to do this for the inspector:
http://trac.webkit.org/browser/trunk/WebCore/bindings/js/ScriptCallStack.cpp
where we only record the first call stack and lazily record the rest of them. 
I don't know if the same approach would work for general exceptions in JSC as
well or not.


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