48 lines
750 B
Go
48 lines
750 B
Go
|
package prototye
|
||
|
|
|
||
|
|
import "fmt"
|
||
|
|
import "errors"
|
||
|
|
|
||
|
|
const (
|
||
|
|
WHITE = 1
|
||
|
|
GREEN = 2
|
||
|
|
BLACK = 3
|
||
|
|
)
|
||
|
|
|
||
|
|
type ProductInfoGetter interface {
|
||
|
|
GetInfo() string
|
||
|
|
}
|
||
|
|
|
||
|
|
type Tshirt struct {
|
||
|
|
Size string
|
||
|
|
Color string
|
||
|
|
}
|
||
|
|
|
||
|
|
func (t Tshirt) GetInfo() string {
|
||
|
|
return fmt.Sprintf("Tshirt size: '%s', Color: '%s'.", t.Size, t.Color)
|
||
|
|
}
|
||
|
|
|
||
|
|
var whiteTshirt *Tshirt = &Tshirt{ "M", "white" }
|
||
|
|
var greenTshirt *Tshirt = &Tshirt{ "L", "green" }
|
||
|
|
var blackTshirt *Tshirt = &Tshirt{ "S", "black" }
|
||
|
|
|
||
|
|
func GetTshirClone(t int) (ProductInfoGetter, error) {
|
||
|
|
switch t {
|
||
|
|
case WHITE:
|
||
|
|
return whiteTshirt, nil
|
||
|
|
case GREEN:
|
||
|
|
return greenTshirt, nil
|
||
|
|
case BLACK:
|
||
|
|
return blackTshirt, nil
|
||
|
|
default:
|
||
|
|
return nil, errors.New(fmt.Sprintf("Prototype id %d not recognized.", t))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|