[cfe-dev] How do i use TraverseXYZ such as TraverseRecordDecl?

[Adam Smalin]

Using this as my input file

struct AA {
    int a, b, c;
};
void funcAZ() {}
int main(){
    struct AA aa;
    int a=1;
}

I am able to print out the functions and the int field a, b, c. However i
decided to use TraverseFieldDecl and i stepped through it to see what it
did. I'm confused by it

How do i use TraverseFieldDecl to call a function which i can run the code
marked with /*thisline*/ ?

class PrintFunctionsConsumer : public ASTConsumer, public
RecursiveASTVisitor<PrintFunctionsConsumer> {
    public:
    virtual void HandleTopLevelDecl(DeclGroupRef DG) {
        for (DeclGroupRef::iterator i = DG.begin(), e = DG.end(); i != e;
++i) {
            Decl *D = *i;
            if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)){
                llvm::errs() << "top-level-decl: \"" <<
ND->getNameAsString() << "\"\n";
            }
            //this->TraverseFieldDecl(D);
            if (auto *ND = dyn_cast_or_null<RecordDecl>(D)){
/*!!!!!!!!*/     this->TraverseRecordDecl(ND);
                for(auto c = ND->decls_begin(); c!=ND->decls_end(); ++c){
                    auto v = *c;
/*thisline*/     v=v;
                    if(const FieldDecl*f = dyn_cast<FieldDecl>(v)){
                        //v->getName
                        llvm::errs() << "field: " << f->getName() << "\n";
                    }
                }
            }
        }
    }
};
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