Private Methods in Objective-C, in Xcode 4.3 I no longer need to declare them in my implementation file ?

by

As of the LLVM Compiler version shipped with Xcode 4.3, if you try to call a method that the compiler has not previously seen, it will look in the rest of the current @implementation block to see if that method has been declared later. If so, then it uses that, and you don’t get a warning. Hence, as of Xcode 4.3, there’s much less need to pre-declare your internal methods. Clearly, you still need to declare methods that are publicly exposed to other classes.

This change was noted in the release notes of some of the Xcode 4.3 betas, but apparently didn’t make it into the “What’s New in Xcode 4.3” final documentation.

Unlike has been suggested in other answers, this is not just an “Undeclared Selector” warning that has been turned off by default. In fact, if you’re using ARC, unrecognized selectors are still hard errors. Try calling [self myNonexistentMethod] and you’ll see; the compiler still complains.

More Related Contents:

  1. is possible to convert soap web services to xml format? [closed]
  2. Xcode build failure “Undefined symbols for architecture x86_64”
  3. Combine static libraries on Apple
  4. Declaring variables inside a switch statement [duplicate]
  5. build failed with: ld: duplicate symbol _OBJC_CLASS_$_Algebra5FirstViewController
  6. What’s the _ underscore representative of in Swift References?
  7. Is there a way to suppress warnings in Xcode?
  8. Decompiling Objective-C libraries
  9. libxml/tree.h no such file or directory
  10. iOS taking photo programmatically
  11. What does the “Couldn’t compile connection:” error mean?
  12. Retain Cycle in ARC
  13. Getting ARP table on iPhone/iPad
  14. Xcode throws an exception in Main() in iOS 8 with ‘all exceptions’ breakpoint
  15. Custom dealloc and ARC (Objective-C)
  16. Question about @synthesize
  17. Xcode 6 Swift code completion not working
  18. Support different orientation for only one view iOS 6
  19. How to send objects in NIB files to front/back?
  20. How to set a timeout with AFNetworking
  21. Fire local notification every day on different times
  22. Why does an NSInteger variable have to be cast to long when used as a format argument?
  23. How to set a conditional breakpoint in Xcode based on an object string property?
  24. Is there a way for Interface Builder to render IBDesignable views which don’t override drawRect:
  25. How to set Xcode plugin for code auto formatting [closed]
  26. Failed to import bridging header
  27. How to enable the new Objective-C object literals on iOS?
  28. iOS: store two NSMutableArray in a .plist file
  29. IBOutletCollection set ordering in Interface Builder
  30. Give warning when [super method] is not called

Leave a Comment