Re: [Caml-list] Seeking exception source

[Alessandro Baretta <a.baretta@barettadeit.com>]

Nicolas Cannasse wrote:
>> I am occasionally annoyed by Not_found propagating to my
>> top level function .. meaning the error could be anywhere
>> at all in my program.
> 
> 
> At that time the best is to run your program in bytecode with debug 
> infos using ocamlrun -b so you'll get full backtrace informations. It 
> would be better for such debug informations (not all the types but only 
> the bytecode -> source positions) to be included by default, and always 
> have backtrace turned on.

In many cases this is completely inadequate. The AS/Xcaml application 
server, for example, cannot terminate on an uncaught exception in a 
program module. The main loop must catch the exception and do its best 
to report it, without aborting the execution of the server. This means 
that I need to get the backtrace within Ocaml code by applying some kind 
of function to the exception object. I tried to write a C function 
providing this kind of information, but I never managed to get it to work.

Alex