“Decorador de Golang” Respostas de código

Decorador de Golang

// this is the type of functions you want to decorate
type StringManipulator func(string) string

// this is your decorator.
func ToLower(m StringManipulator) StringManipulator {
    return func(s string) string {
        lower := strings.ToLower(s)
        return m(lower)
    }
}