包装类型的惯用方式是什么？

Question

I want to wrap goquery.Selection for getting HTML and selector string more conveniently.

To access methods of goquery.Selection, should I implement some helper method such as Get() on the following code?

type MySelection goquery.Selection

// Without this helper method, I should always use type conversion
// to use goquery.Selection's methods.
func (s *MySelection) Get() *goquery.Selection {
    sel := s.(goquery.Selection)
    return sel
}

func (s *MySelection) HTML() string {
    // html, _ := s.Html() <- error
    html, _ := s.Get().Html()
    return html
}

func (s *MySelection) String() string {
    return fmt.Sprintf("%v#%v.%v",
        goquery.NodeName(s.Get()),
        s.Get().AttrOr("id", "(undefined)"),
        s.Get().AttrOr("class", "(undefined)"))
}

Are there better ways to handle this situation?

Answer 1

You also can embed

type MySelection struct {
    goquery.Selection
    some payload //if needed
}

and you will have goquery.Selection methods for MySelection for free and can to add or overwrite some.