mastergo的 代码属于哪一种前端语言？

请问mastergo的 代码属于哪一种前端语言？

let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white
let view = UILabel()
view.frame = CGRect(x: 0, y: 0, width: NaN, height: NaN)
view.backgroundColor = .white

从语法上来看 还是 js 语法 。只不过 它封装了 一些 类，或者说是对象 和组件