package value import ( "fmt" "time" "gitoa.ru/go-4devs/console/input" ) type Empty struct{} func (e *Empty) Append(string) error { return fmt.Errorf("%w: in empty value", input.ErrInvalidName) } func (e *Empty) String() string { return "" } func (e *Empty) Int() int { return 0 } func (e *Empty) Int64() int64 { return 0 } func (e *Empty) Uint() uint { return 0 } func (e *Empty) Uint64() uint64 { return 0 } func (e *Empty) Float64() float64 { return 0 } func (e *Empty) Bool() bool { return false } func (e *Empty) Duration() time.Duration { return 0 } func (e *Empty) Time() time.Time { return time.Time{} } func (e *Empty) Strings() []string { return nil } func (e *Empty) Ints() []int { return nil } func (e *Empty) Int64s() []int64 { return nil } func (e *Empty) Uints() []uint { return nil } func (e *Empty) Uint64s() []uint64 { return nil } func (e *Empty) Float64s() []float64 { return nil } func (e *Empty) Bools() []bool { return nil } func (e *Empty) Durations() []time.Duration { return nil } func (e *Empty) Times() []time.Time { return nil } func (e *Empty) Any() interface{} { return nil }