Ejemplo n.º 1
0
/// lookupMethod - This method returns an instance/class method by looking in
/// the class, its categories, and its super classes (using a linear search).
ObjCMethodDecl *ObjCInterfaceDecl::lookupMethod(Selector Sel, 
                                     bool isInstance,
                                     bool shallowCategoryLookup) const {
  // FIXME: Should make sure no callers ever do this.
  if (!hasDefinition())
    return 0;

  const ObjCInterfaceDecl* ClassDecl = this;
  ObjCMethodDecl *MethodDecl = 0;

  if (data().ExternallyCompleted)
    LoadExternalDefinition();

  while (ClassDecl != NULL) {
    if ((MethodDecl = ClassDecl->getMethod(Sel, isInstance)))
      return MethodDecl;

    // Didn't find one yet - look through protocols.
    for (ObjCInterfaceDecl::protocol_iterator I = ClassDecl->protocol_begin(),
                                              E = ClassDecl->protocol_end();
           I != E; ++I)
      if ((MethodDecl = (*I)->lookupMethod(Sel, isInstance)))
        return MethodDecl;
    
    // Didn't find one yet - now look through categories.
    ObjCCategoryDecl *CatDecl = ClassDecl->getCategoryList();
    while (CatDecl) {
      if ((MethodDecl = CatDecl->getMethod(Sel, isInstance)))
        return MethodDecl;

      if (!shallowCategoryLookup) {
        // Didn't find one yet - look through protocols.
        const ObjCList<ObjCProtocolDecl> &Protocols =
          CatDecl->getReferencedProtocols();
        for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
             E = Protocols.end(); I != E; ++I)
          if ((MethodDecl = (*I)->lookupMethod(Sel, isInstance)))
            return MethodDecl;
      }
      CatDecl = CatDecl->getNextClassCategory();
    }
  
    ClassDecl = ClassDecl->getSuperClass();
  }
  return NULL;
}
Ejemplo n.º 2
0
/// lookupMethod - This method returns an instance/class method by looking in
/// the class, its categories, and its super classes (using a linear search).
ObjCMethodDecl *ObjCInterfaceDecl::lookupMethod(Selector Sel,
                                                bool isInstance) const {
  const ObjCInterfaceDecl* ClassDecl = this;
  ObjCMethodDecl *MethodDecl = 0;

  if (ExternallyCompleted)
    LoadExternalDefinition();

  while (ClassDecl != NULL) {
    if ((MethodDecl = ClassDecl->getMethod(Sel, isInstance)))
      return MethodDecl;

    // Didn't find one yet - look through protocols.
    const ObjCList<ObjCProtocolDecl> &Protocols =
      ClassDecl->getReferencedProtocols();
    for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
         E = Protocols.end(); I != E; ++I)
      if ((MethodDecl = (*I)->lookupMethod(Sel, isInstance)))
        return MethodDecl;

    // Didn't find one yet - now look through categories.
    ObjCCategoryDecl *CatDecl = ClassDecl->getCategoryList();
    while (CatDecl) {
      if ((MethodDecl = CatDecl->getMethod(Sel, isInstance)))
        return MethodDecl;

      // Didn't find one yet - look through protocols.
      const ObjCList<ObjCProtocolDecl> &Protocols =
        CatDecl->getReferencedProtocols();
      for (ObjCList<ObjCProtocolDecl>::iterator I = Protocols.begin(),
           E = Protocols.end(); I != E; ++I)
        if ((MethodDecl = (*I)->lookupMethod(Sel, isInstance)))
          return MethodDecl;
      CatDecl = CatDecl->getNextClassCategory();
    }
    ClassDecl = ClassDecl->getSuperClass();
  }
  return NULL;
}