Re: line number that generated exception

Antonio <[email protected]> Mon, 12 Mar 2007 22:49:01 +0100
Newsgroups gmane.comp.java.sisc.user
Message-ID <[email protected]>
Hi again,

It seems that:

SchemeException.e -> Closure
SchemeException.f -> CallFrame

Now, it's the CallFrame that has a "tracer" instance, but this is null :-(

How can I enable tracing?

Thanks,
Antonio


Scott G. Miller wrote:
> On Mon, Mar 12, 2007 at 09:57:50AM +0100, Antonio wrote:
>   
>> Hello all,
>>
>> Is it possible to determine which line in a source file generated a 
>> SchemeException? If so, how?
>>     
>
> Yes, that is possible.  The SchemeException contains the continuation of 
> the error, in the "e" field.  It should be a Continuation, in which case 
> it has a "tracer" member, which can get you the stack trace by calling 
> its toValue() method.  For all of this to work, stack tracing must be 
> on, which it is by default.
>
> Scott
>
>
>
>
>   


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