cmd/opt/int.go

62 lines
1012 B
Go

package opt
import "strconv"
type IntOption struct {
name string
shortName string
description string
value int
}
var _ Option = (*IntOption)(nil)
func Int(name, shortName string, defaultValue int, description string) *IntOption {
return &IntOption{
name: name,
shortName: shortName,
description: description,
value: defaultValue,
}
}
// Description implements Option.
func (o *IntOption) Description() string {
return o.description
}
// Name implements Option.
func (o *IntOption) Name() string {
return o.name
}
// ShortName implements Option.
func (o *IntOption) ShortName() string {
return o.shortName
}
// Value implements Option.
func (o *IntOption) Parse(raw string) error {
if raw == "" {
return nil
}
intVal, err := strconv.Atoi(raw)
if err != nil {
return err
}
o.value = intVal
return nil
}
// RequiresVal implements Option.
func (*IntOption) RequiresVal() bool {
return true
}
func (o *IntOption) Value() int {
return o.value
}