[cfe-dev] Matching Indirect base classes

[Daniel Jasper]

Yes, sorry, lookupInBases() is what I meant. You'll need forAllBases(). You
can pass in a ForallBasesCallback, which is basically a callback function
executed for each base class.

I have not used this myself, but for an example, look at:
CXXRecordDecl::isProvablyNotDerivedFrom defined in
lib/AST/CXXInheritance.cpp.

Also lib/Sema/SemaDeclCXX.cpp has an example close to the bottom
of Sema::CheckUsingDeclQualifier()
that collects all of the bases into a SmallPtrSet.


On Fri, Nov 8, 2013 at 9:16 AM, Pedro Delgado Perez <pedro.delgado at uca.es>wrote:

>  Hi,
>
> Thanks Daniel, I suppose you mean CXXRecordDecl::lookupInBases() instead
> CXXRecordDecl::findInBases().
>
> Have you ever used one of these methods? I don't understand quite well how
> can I use them for my purpose. What I need is that, given an object
> CXXRecordDecl, I can analyze something in particular in each one of its
> base classes (direct or indirect). Thus, I need to get each one of these
> classes to process them, but the methods you refer only return a *bool*.
>
> Could you please show me an example using these methods? Mainly, with
> respect the arguments passed to these methdos.
>
> Thanks,
>
> Pedro.
> *El día 08 nov 2013 15:32, Daniel Jasper <djasper at google.com
> <djasper at google.com>> escribió:*
>
> Take a look at CXXRecordDecl::forallBases() and
> CXXRecordDecl::findInBases(). Dependent on what you want to do, one of them
> might do what you need.
> Cheers,
> Daniel
>
>
> On Fri, Nov 8, 2013 at 2:39 AM, Pedro Delgado Perez <pedro.delgado at uca.es>wrote:
>
>> Hello,
>>
>> Please, I need some help with an issue I noticed a few days ago and I am
>> not able to solve.
>>
>> To illustrate my problem, I show this piece of code:
>>
>> class A{
>>     public:
>>         A(): a(1) {};
>>         int a;
>> };
>>
>> class B: public A{
>>     public:
>>         B(): b(2){};
>>         int b;
>> };
>>
>> class C: public B{
>>     public:
>>         C(): c(3){};
>>         int b;
>>         int a;
>> };
>>
>> We have three classes, where:
>> B  inherits directly from A
>> C  inherits directly from B and INDIRECTLY from A
>>
>> Using CXXRecordDecl::base_class_iterator, the classes indirectly
>> inherited are not visited. Please, can someone explain me how to take into
>> account these indirectly inherited base classes? I've been thinking on
>> recursion (use base_class_iterator on each class directly inherited), but
>> I'm sure there should be another simpler way to do this.
>>
>> Thanks in advance,
>>
>> Pedro.
>>
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at cs.uiuc.edu
>>
> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>
>
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