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From: John Whitington <john@coherentgraphics.co.uk>
To: "caml-list@inria.fr" <caml-list@inria.fr>
Subject: [Caml-list] ANN: exn-source  - exception backtraces with source code printing
Date: Sun, 19 Oct 2014 19:03:18 +0100	[thread overview]
Message-ID: <5443FCE6.50206@coherentgraphics.co.uk> (raw)

Hi,

OCaml 4.02 has new facilities for installing a new backtrace handler, 
and processing the back trace symbolically. As a little proof of 
concept, I've built a package which you can add to any project to get 
backtrace with source code printed and highlighted:

https://github.com/johnwhitington/exn-source

Here's the start of a backtrace:

http://www.coherentpdf.com/exnsource.png

By default, it prints five lines either side, and looks the current 
directory for source code. But as one can see from the screenshot, one 
can add /usr/local/lib/ocaml to get stdlib source and so on...

It's somewhat difficult to test this kind of thing (we can't use 
exceptions at all inside a backtrace handler, for example), so I'm 
appealing for help. Attach exn-source to your code and let me know how 
you get on...

Thanks,

-- 
John Whitington
Director, Coherent Graphics Ltd
http://www.coherentpdf.com/


             reply	other threads:[~2014-10-19 18:03 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-19 18:03 John Whitington [this message]
2014-10-19 18:26 ` Gabriel Scherer
2014-10-19 18:55   ` John Whitington
2014-10-19 19:05     ` Gabriel Scherer
     [not found]       ` <54441347.904@coherentgraphics.co.uk>
2014-10-19 19:50         ` Gabriel Scherer
2014-10-20  9:15 ` Nicolas Boulay
2014-10-20  9:35 ` Peter Zotov
2014-10-20 11:52   ` John Whitington
2014-10-20 12:06     ` Peter Zotov
2014-10-20 12:15       ` Francois Berenger
2014-10-20 18:28         ` Török Edwin
2014-10-23  8:32 ` John Whitington
2014-10-23 11:48   ` Sébastien Hinderer
2014-10-23 16:43     ` Gabriel Scherer

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