[fpc-devel] debug information for Variant type
jonas.maebe at elis.ugent.be
Thu Dec 3 14:33:08 CET 2009
On 03 Dec 2009, at 14:29, Marc Weustink wrote:
> Jonas Maebe wrote:
>> On 01 Dec 2009, at 13:42, Paul Ishenin wrote:
>>> Jonas Maebe wrote:
>>>> Would it be enough if the type name were changed to "variant"? It
>>>> would not be 100% safe (since "variant" is not a reserved word,
>>>> anyone can declare a variable/type/... with the name "variant"),
>>>> but I don't immediately see another solution.
>>> I think yes.
>> Does the attached patch work for DWARF with Lazarus? "ptype
>> variantvar" still shows tvardata, but "info variantvar" shows
>> "static VARIANT V;", and I don't know what the GDB MI will return
>> for the query that Lazarus uses.
> the mi version of info var.. is not implemented in gdb, so lazarus
> uses ptype var
> So I guess for this case, when a TVarrec is returned we'll inspect
> further using info.
It's also possible to create another definition of tvarrec with
"variant" as name. It's just slightly less clean to implement. Also
note that "info var" takes a regular expression, so make sure to use
"info var ^varname$", otherwise you'll get info about a lot of
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