| // +build OMIT | |
| 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) | |
| } | |
| } |