異なるクラスの一般的な汎用関数を書くにはどうすればいいですか？

Question

func setPostcommentData(postmodel:model1,index: IndexPath) { 
    btnReply.tag = index.section 
    lblName.text = postmodel.getFullName() 
    btnReply.setTitle("Reply", for: UIControlState.normal) 
    btnCount.setTitle("0", for: UIControlState.normal) 
    TxtViewComment.text = postmodel.description 
    lblTime.text = ChatDates.commentTimeData(postmodel.createdDate).dateString 
} 

使用法：それは異なるモデルとセットのデータを受け入れるように汎用的な関数を記述する方法

cellComment.setPostcommentData(postmodel: model1,index:indexPath) 
cellComment.setPostcommentData(postmodel: model2,index:indexPath) 
cellComment.setPostcommentData(postmodel: model3,index:indexPath) 

？私は右のアイデアを得た場合

Answer 1

は、ここに

protocol PostComment { 
    var value1: String {get} 
    var value2: String {get} 
    var value3: String {get} 
} 

class PostCommentParent: PostComment { 
    var value1: String { 
     return self.myValue1 
    } 

    var value2: String { 
     return self.myValue2 
    } 

    var value3: String { 
     return self.myValue3 
    } 

    var myValue1 = "1" 
    var myValue2 = "2" 
    var myValue3 = "3" 
} 

class PostCommentChild: PostCommentParent { 
    override var value3: String { 
     return self.myValue4 
    } 

    var myValue4 = "4" 
} 

let myParent = PostCommentParent() 
let myChild = PostCommentChild() 

func parse(comment: PostComment) { 
    print(comment.value3) 
} 

parse(comment: myChild) 
parse(comment: myParent)