[M3devel] Pretty-printing REFANYs?

[Tony Hosking]

m3gdb makes use of stabs debug information spat out by the backend.   
They are only in the binary if compiled -g.  There are other ways to  
get what you are after, as Darko has observed.

On Oct 1, 2008, at 11:03 AM, Darko wrote:

> I've extended one of the modules with a function that formats any  
> allocated value for printing. If you're interested I can clean them  
> up a little and post them.
>
>
> On 28/09/2008, at 8:01 AM, Darko wrote:
>
>> As far as I know, yes, they're not in the binary. I'd love to be  
>> proven wrong though, or fix it so they did. I have a module that  
>> reads the .M3WEB file and maps it to types and a module that will  
>> read and write any field within a type safely using a numeric  
>> index. Neither is perfect. You can integrate the two to get what  
>> you want but I seem to remember having some problems mapping type  
>> ids (UIDs?) to typecodes at runtime.
>>
>>
>> On 28/09/2008, at 7:49 AM, Mika Nystrom wrote:
>>
>>> Right, I am aware of those interfaces.. just wondering what was
>>> out there.  Do I really need to look at .M3WEB?  I thought
>>> that m3gdb could figure out things without anything outside
>>> of the binary...
>>>
>>> I'm looking for essentially what m3gdb offers, say prints
>>> at minimum the name of the type (this I recall is trivial with
>>> some of the RT* interfaces) but hopefully also with field names
>>> and values, but doesn't expand references recursively.. something
>>> like that?
>>>
>>>  Mika
>>>
>>> Darko writes:
>>>> You can use RTTipe to read the fields and values within a type.  
>>>> If you
>>>> also want the type and field names you can interpret the .M3WEB  
>>>> file.
>>>> I have a couple of modules that do something like that but they are
>>>> not what you would call finished. What level of detail are you  
>>>> after?
>>>>
>>>>
>>>> On 28/09/2008, at 6:45 AM, Mika Nystrom wrote:
>>>>
>>>>> Hello Modula-3 people,
>>>>>
>>>>> I am working on a writing an interpreter that I'd like to embed in
>>>>> various Modula-3 programs.  It so happens that this interpreter
>>>>> might from time to time be manipulating arbitrary M3 REFs, and  
>>>>> just
>>>>> from the point of view of providing information to a human user,
>>>>> it might be nice to be able to pretty-print these.  Does anyone
>>>>> have any code that accomplishes this, at least partly?  I'm  
>>>>> thinking
>>>>> that since m3gdb can do it, the information must all be in the
>>>>> binary---somehow.  (Even enumeration names, right?)  And since the
>>>>> pickler can pickle things... hmm.
>>>>>
>>>>> I would greatly appreciate any guidance that's out there...
>>>>>
>>>>> Best regards,
>>>>>    Mika Nystrom
>>