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package main | |
import ( | |
"fmt" | |
"time" | |
"errors" | |
) | |
type DateError struct { | |
Message string | |
Date time.Time | |
} | |
// This part is updated so that we declare that the method receiver is only Pointers to DateError | |
func (de *DateError) Error() string { | |
return fmt.Sprintf("%s: %s", de.Date.String(), de.Message) | |
} | |
func NewError(message string) DateError { | |
return DateError{ | |
Message:message, | |
Date: time.Now(), | |
} | |
} | |
// PrintError can take in an DateError since DateError fulfills the error interface | |
func PrintError(err error) { | |
fmt.Println(err.Error()) | |
} | |
func main() { | |
de := NewError("Auch, I failed") | |
regularErr := errors.New("Another error") | |
PrintError(de) | |
PrintError(regularErr) | |
} |
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