#import static inline NSString *staticInlineFun() { return [[NSLocale currentLocale] localeIdentifier]; } static inline __attribute__((ns_returns_retained)) NSURL *_Nullable test(NSFileManager *self_, NSURL *originalItemURL, NSURL *newItemURL, NSString *_Nullable backupItemName, NSFileManagerItemReplacementOptions options, NSError **_Nullable error) { NSURL *result = nil; BOOL success = [self_ replaceItemAtURL:originalItemURL withItemAtURL:newItemURL backupItemName:backupItemName options:options resultingItemURL:&result error:error]; return success ? result : nil; }