optional_string.go

package optional

type String struct {
	string  string
	present bool
}

func EmptyString() String {
	return String{}
}

func OfString(s string) String {
	return String{string: s, present: true}
}

func (o *String) Set(s string) {
	o.string = s
	o.present = true
}

func (o *String) Get() string {
	return o.string
}

func (o *String) Present() bool {
	return o.present
}