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