willChangeValueForKey method

void willChangeValueForKey(
  1. NSString key
)

willChangeValueForKey:

Implementation

void willChangeValueForKey(objc.NSString key) {
  objc.checkOsVersionInternal(
    'NSObject.willChangeValueForKey:',
    iOS: (false, (2, 0, 0)),
    macOS: (false, (10, 0, 0)),
  );
  _objc_msgSend_xtuoz7(
    this.ref.pointer,
    _sel_willChangeValueForKey_,
    key.ref.pointer,
  );
}