関数Tableviewが呼ばれない

概要
テーブルビューで呼ばれるはずのtableview関数がよばれず、テーブルビューの中身が表示されません

該当のソースコード

import UIKit
import Firebase
class ViewController: UIViewController,UITableViewDataSource {
    var documents : Array<QueryDocumentSnapshot?>  = []
    
    @IBOutlet weak var work1tableview: UITableView!
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        if tableView == work1tableview{
             print(documents.count)
        return documents.count
           
        }
        return 0
    }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
   //     if tableView == work1tableview{
           
        //呼ばれない
        print("c")
        let a = documents[indexPath.row]?.data()["name"] as? String
        let b = documents[indexPath.row]?.data()["work1"] as? String
        let caa = documents[indexPath.row]?.data()["work2"] as? String ?? ""
        let ca =  "  " +  caa
        let cai = documents[indexPath.row]?.data()["work3"] as? String ?? ""
        let c = ca + "  " + cai ?? ""
        let da = documents[indexPath.row]?.data()["eschool"] as? String ?? "" + "  "
        let di = documents[indexPath.row]?.data()["cschool"] as? String ?? ""
        let d = da + di
            + "  "
        let e =  b ?? ""
            + c
        let f = documents[indexPath.row]?.data()["univercity"] as? String ?? ""
        let fi = documents[indexPath.row]?.data()["hschool"] as? String ?? ""
        let fu : String
        if documents[indexPath.row]?.data()["apokn"] as? Bool == true {
            let fu = "必要"
             let fa =  "  " + f + "取材許可：" + fu
            let cell =
                tableView.dequeueReusableCell(withIdentifier: "w1cell")
            cell?.textLabel?.text = a ?? "" + "  " + e
            cell?.detailTextLabel?.text = "出身校：" + d + fi + fa
            print("aa")
             return cell!
        }else{
            let fu = "不必要"
             let fa =  "  " + f + "取材許可：" + fu
            let cell =
                tableView.dequeueReusableCell(withIdentifier: "w1cell")
            cell?.textLabel?.text = a ?? "" + "  " + e
            cell?.detailTextLabel?.text = "出身校：" + d + fi + fa
            print("aaa")
             return cell!
        }
        //  }