[cfe-dev] TraverseDecl: a problem with a header

[Pedro Delgado Perez]

Hi,

This is part of my code using TraverseDecl:

list<const CXXRecordDecl*> allClasses;

void MyClass::HandleTranslationUnit(ASTContext &Context) {
   TranslationUnitDecl *D = Context.getTranslationUnitDecl();
   // Run Recursive AST Visitor
   TraverseDecl(D);
}

bool MyClass::VisitCXXRecordDecl(CXXRecordDecl *Declaration) {
   if(!(Declaration->hasDefinition()))
       return false;
   allClasses.push_back(Declaration);
   return true;
}
 

And I use them in this way:

void MyClass::run(const MatchFinder::MatchResult &Result) { 

   Context = Result.Context;
  ...
  HandleTranslationUnit(*Context);
                
  if(!allClasses.empty()){
 
       for(list<const CXXRecordDecl*>::const_iterator i = allClasses.begin(); i != allClasses.end(); i++){
                     
                       const CXXRecordDecl *BaseClass = *i;
                       ...
        }
  }
}

Well, up to now I have been using this with simple fragments of code, and it was working perfectly. But then, I tested a file with the header "iostream" and:

1. First, I got this at the beginning

> In file included from /home/pedro/prueba_op.cpp:1:
> In file included from /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/iostream:40:
> In file included from /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/ostream:40:
> In file included from /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/ios:39:
> In file included from /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/iosfwd:42:
> In file included from /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/bits/postypes.h:42:
> In file included from /usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/cwchar:46:
> /usr/include/wchar.h:40:11: fatal error: 'stdarg.h' file not found
> # include <stdarg.h>
> 

This hasn't been a problem so far, but I was wondering how I can avoid that message.

2. Second, when I include this header, the classes in my file are not visited with TraverseDecl, in spite of they are in the same TranslationUnitDecl; it only processes some classes in the header, as _Rep or basic_ios... Does anybody know what can be the problem? Maybe is a detail that I am overlooking, but I'm not able to find the solution.

Thanks in advance,

Pedro.


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