Debugging with GHCi.

[Bulat Ziganshin]

Hello Simon,

Monday, April 3, 2006, 11:45:35 PM, you wrote:

>> btw, the basic breakpoint functionality could indeed be provided
>> as a compiler/IDE transformation, but calling out to GHCi makes
>> a lot more sense:

> I think you misunderstand me: I wanted to avoid the recompilation step
> when adding a breakpoint, that's all.  The interface would be exactly 

but this can be implemented just by adding call to special function
after each operation in I/O monad. this function will check whether we
reached breakpoint and pause program if so. this approach is simpler
to implement and allow easily extend breakpoints' types (line number,
condition, line number+condition, variable changed....). this should
be slower, but i think in most cases this cost should be acceptable


-- 
Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com