Example #1
0
void ento::CheckObjCInstMethSignature(const ObjCImplementationDecl* ID,
                                    BugReporter& BR) {

  const ObjCInterfaceDecl* D = ID->getClassInterface();
  const ObjCInterfaceDecl* C = D->getSuperClass();

  if (!C)
    return;

  ASTContext& Ctx = BR.getContext();

  // Build a DenseMap of the methods for quick querying.
  typedef llvm::DenseMap<Selector,ObjCMethodDecl*> MapTy;
  MapTy IMeths;
  unsigned NumMethods = 0;

  for (ObjCImplementationDecl::instmeth_iterator I=ID->instmeth_begin(),
       E=ID->instmeth_end(); I!=E; ++I) {

    ObjCMethodDecl* M = *I;
    IMeths[M->getSelector()] = M;
    ++NumMethods;
  }

  // Now recurse the class hierarchy chain looking for methods with the
  // same signatures.
  while (C && NumMethods) {
    for (ObjCInterfaceDecl::instmeth_iterator I=C->instmeth_begin(),
         E=C->instmeth_end(); I!=E; ++I) {

      ObjCMethodDecl* M = *I;
      Selector S = M->getSelector();

      MapTy::iterator MI = IMeths.find(S);

      if (MI == IMeths.end() || MI->second == 0)
        continue;

      --NumMethods;
      ObjCMethodDecl* MethDerived = MI->second;
      MI->second = 0;

      CompareReturnTypes(MethDerived, M, BR, Ctx, ID);
    }

    C = C->getSuperClass();
  }
}
Example #2
0
Stmt* ParentMap::getParent(Stmt* S) const {
  MapTy* M = (MapTy*) Impl;
  MapTy::iterator I = M->find(S);
  return I == M->end() ? 0 : I->second;
}