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Date: Thu, 3 Feb 2000 19:28:50 +0100
From: Xavier Leroy <Xavier.Leroy@inria.fr>
To: stratula@loria.fr, caml-list@inria.fr
Subject: Re: <cannot fetch remote object> - WHY ?
References: <14479.17696.496132.380433@micutzu.loria.fr>
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In-Reply-To: <14479.17696.496132.380433@micutzu.loria.fr>; from Sorin Stratulat on Wed, Jan 26, 2000 at 08:38:03PM +0100
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> Unfortunately, I found
> difficulties to convince the debugger to print objects.

> 5. install the printer function my_print_point
> (ocd) install_printer Essai_printer.my_print_point

> 7. print my_p
> (ocd) p my_p
> my_p : point = <cannot fetch remote object>

User-defined printing functions run in the memory space of the
debugger, which is distinct from that of the debugged program.
Structued I/O (output_value/input_value) is used to communicate the
value being printed between the two.  Unfotunately, structured I/O is
currently unable to deal with objects and functions, hence the error
you've observed.

> Can somebody tell me the "solution" to print the value "x" of my_p ?

The only solution I can see right now is put a breakpoint in one of
the methods of my_p's class; then, "x" is in scope and "print x"
should show its value.

- Xavier Leroy