}
}

// mustBeExported panics if f records that the value was obtained using
// an unexported field.
func (f flag) mustBeExported() {
	if f == 0 || f&flagRO != 0 {
		f.mustBeExportedSlow()
	}
}

func (f flag) mustBeExportedSlow() {
	if f == 0 {
		panic(&ValueError{valueMethodName(), Invalid})
	}
	if f&flagRO != 0 {
		panic("reflect: " + valueMethodName() + " using value obtained using unexported field")