29 lines
329 B
Go
29 lines
329 B
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"time"
|
||
|
|
)
|
||
|
|
|
||
|
|
type MyError struct {
|
||
|
|
When time.Time
|
||
|
|
What string
|
||
|
|
}
|
||
|
|
|
||
|
|
func (e *MyError) Error() string {
|
||
|
|
return fmt.Sprintf("at %v, %s", e.When, e.What)
|
||
|
|
}
|
||
|
|
|
||
|
|
func run() error {
|
||
|
|
return &MyError {
|
||
|
|
time.Now(),
|
||
|
|
"it didn't work",
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
if err := run(); err != nil {
|
||
|
|
fmt.Println(err)
|
||
|
|
}
|
||
|
|
}
|