in reply to Debugging Complex Structures

Hmm. Last I looked, the x operation does drill down into the reference structure, following it as far as it can. What did you try that didn't work?

-- Randal L. Schwartz, Perl hacker

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Re: Re: Debugging Complex Structures
by chorg (Monk) on Nov 24, 2000 at 01:06 UTC
    I tried to view a DBI statment handle object. I got nothing. I was able to view arrays and hashes however. I really want to see (if possible) object structures however. I'll give the Data Dumper thing a try too.
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    "Intelligence is a tool used achieve goals, however goals are not always chosen wisely..."
[reply]
      chorg says:
      > I tried to view a DBI statment handle object.
      DBI's internal objects are very weird. You are not supposed to be poking around in them anyway; there is nothing useful to be seen there, unless you are writing your own DBD:: module.

      > I got nothing.
      You got nothing because there is nothing to get; the object has nothing in it. Data::Dumper will show you the same thing, because that is the truth. A DBI statement handle object is a reference to an empty tied hash.

      The hash is tied to an object which is implemented (probably) with another hash that actually contains real member data. You can see this by doing: 

        x tied %$sth

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      in the debugger. But I don't really understand what you think you're going to accomplish by looking into the internals of the DBI object---it's unlikely that you will find anything there that you can 'debug'.

      For most ordinary objects, you will not have to do this. The x command will do what you want.

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[d/l]
        I see what you are saying. Basically I am trying out functionality of the debugger. I have a project to do by Monday (ahh sweet, sweet, sweet extension) and having some help on the debug will save me a lot of time. Thanks for the tip :)
        _______________________________________________
        "Intelligence is a tool used achieve goals, however goals are not always chosen wisely..."
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