[lldb-dev] Call c/objc functions with the API

[Jim Ingham]

I'm not arguing for this, but you could do a fairly straightforward API like:

SBValue
SBValue::CallMethod(const char *methodName, SBValueList arguments);

This would only work if the SBValue was a C++ or ObjC object.  In the ObjC case "methodName" would be the selector, and the value list would have to be in parameter order.  

I can see this being useful, though probably under the covers it would take some work to get it right...

Jim

On Feb 22, 2013, at 11:51 AM, Filipe Cabecinhas <filcab+lldb-dev at gmail.com> wrote:

> I also don't think it should be in the SB layer. There's lots of stuff to deal with (arguments and their types, variable arguments selectors/functions, etc). I think creating an expression is better (maybe we can use clang so one doesn't have to generate an expression string?).
> 
> Regards,
> 
>   filipe
> 
> 
> On Fri, Feb 22, 2013 at 10:23 AM, Enrico Granata <egranata at apple.com> wrote:
> Currently, no.
> You would have to craft your own expression and run it.
> 
> The C++ data formatters have their own helper functions to do so. You can refer to lldb_private::formatters::ExtractValueFromObjCExpression for an example.
> 
> I am not sure if this kind of API belongs in the SB layer. Ideas?
> 
> Enrico Granata
> ✉ egranata@.com
> ✆ 27683
> 
> On Feb 22, 2013, at 5:29 AM, Carlo Kok <ck at remobjects.com> wrote:
> 
>> Does the api expose any way to execute an objc selector a given value (SBValue)?  (for example I have an NSException instance in an SBValue, and want to call "name" on it).
>> 
>> 
>> What about global (c) functions?
>> 
>> 
>> If not the api, how can I do the equivalent with the underlying api?
>> 
>> 
>> Thanks,
>> --
>> 
>> Carlo Kok
>> 
>> 
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