implement static method

NSToolbarItemValidation implement({
  1. required bool validateToolbarItem_(
    1. NSToolbarItem item
    ),
  2. bool $keepIsolateAlive = true,
})

Builds an object that implements the NSToolbarItemValidation protocol. To implement multiple protocols, use addToBuilder or objc.ObjCProtocolBuilder directly.

If $keepIsolateAlive is true, this protocol will keep this isolate alive until it is garbage collected by both Dart and ObjC.

Implementation

static NSToolbarItemValidation implement({
  required bool Function(NSToolbarItem) validateToolbarItem_,
  bool $keepIsolateAlive = true,
}) {
  final builder = objc.ObjCProtocolBuilder(
    debugName: 'NSToolbarItemValidation',
  );
  NSToolbarItemValidation.validateToolbarItem_.implement(
    builder,
    validateToolbarItem_,
  );
  builder.addProtocol($protocol);
  return NSToolbarItemValidation.castFrom(
    builder.build(keepIsolateAlive: $keepIsolateAlive),
  );
}