Multiple buttons with same protocol - delegate function, using multiple IBActions instead of tags

Custom TabBar multiple IBAction, no tags

in tabBar.swift

protocol TabBarDelegate {
  func buttonPressed(tabBar: TabBar, section: SectionType)
}

var delegate: TabBarDelegate?

@IBAction func buttonAPressed(sender: UIButton){
  delegate?.buttonPressed(self, section: SectionType.caseA)
}
@IBAction func buttonBPressed(sender: UIButton){
  delegate?.buttonPressed(self, section: SectionType.caseB)
}

viewController.swift

func buttonPressed(tabBar: TabBar, section: SectionType) {
  if arrayForSectionType(section).count > 0 {
     tableView.scrollToRowAtIndexPath( (NSIndexPath(forRow: 0, inSection: section.rawValue)), atScrollPosition: .Top, animated: true)
     }
  }
  
  func arrayForSectionType(type: SectionType) -> Array<FieldType> {
  switch type {
  case .CaseA:
     return arrayA
  case .CaseB
     return arrayB
  }
}