Property's synthesized getter follows Cocoa naming convention for returning 'owned' objects

今天写程序，无意间出来一个这样的警告。

指向这一行：@property (retain,
nonatomic) NSString *newTitle;
Apple LLVM complier 4.1 Warning.

Semantic
Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned' objects

经过查阅资料，得到下面结果:The compiler version you’re using follows the memory management
rules for declared properties, too.

A property named newTitle,when
synthesised, yields a method called -newTitle,
hence the warning/error. -newTitle is
supposed to be a getter method for the newTitle property,
however naming conventions state that a method whose name begins with new returns
an object that’s owned by the caller, which is not the case of getter methods.

简单的说就是你的编译器在声明属性的时候，遵循内存管理原则，为属性变量命名的时候，不要用到 “alloc”, “new”, “copy”, or “mutableCopy”这些word，因为这些属性在synthesized的时候它的getter 函数是newObject格式的。所以产生了这个警告。注意不要混淆。

官方文档在此，其他都是浮云。