我想在数据库中保存用户，并创建他的密码的散列，并将其保存为密码，但我所有这样做的尝试导致rangeerror:超过了最大调用堆栈大小

这是用户代码

import db from "./db";
import bcrypt from "bcryptjs";

class User {
    constructor(name, surname, login, pass) {
        var user = new User();
        user.name = name;
        user.surname = surname;
        user.login = login;
        user.pass =pass;
    }

    save(cb){
        let sql = "INSERT INTO users(name, surname, login, hash) VALUE ?";
        let values = [[this.name, this.surname, this.login, this.hash]];
        this.hashPass((result)=>{
            db.query(sql, [values], cb);
        });
    };

    hashPass(pass, cb){
        bcrypt.genSalt(8,(err, salt) => {
            if (err) throw err;
            bcrypt.hash(pass, salt, (result)=>{
                cb(result);
            });
        });
    }

    varification(login, password, cb) {
        bcrypt.compare(pass, hash, (err, result) => {
            cb(result);
        });
    }
}

export default User;

这里是一个尝试保存用户的地方

router.post('/regist', (req, res)=> {
    let entryData = req.body;

    let newUser = new User(entryData.name, entryData.surname, entryData.login, entryData.password);

    newUser.save((err, result)=> {
        if (err) {
            console.log(err);
        }
        res.json(result);
    });
});

我怎么处理呢？