gravitton /
errors
| Total Lines | 59 |
| Duplicated Lines | 0 % |
| Coverage | 89.47% |
| Changes | 0 | ||
| 1 | package errors |
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| 2 | |||
| 3 | import ( |
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| 4 | "fmt" |
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| 5 | "strings" |
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| 6 | "sync" |
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| 7 | ) |
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| 8 | |||
| 9 | type MultiError struct { |
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| 10 | errs []error |
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| 11 | mutex sync.Mutex |
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| 12 | } |
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| 13 | |||
| 14 | func NewMulti() *MultiError { |
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| 15 | 2 | return &MultiError{} |
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| 16 | } |
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| 17 | |||
| 18 | func (e *MultiError) Error() string { |
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| 19 | 3 | if len(e.errs) == 1 { |
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| 20 | 1 | return e.errs[0].Error() |
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| 21 | } |
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| 22 | |||
| 23 | 2 | msg := make([]string, len(e.errs)) |
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| 24 | 2 | for i, err := range e.errs { |
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| 25 | 4 | msg[i] = err.Error() |
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| 26 | } |
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| 27 | |||
| 28 | 2 | return fmt.Sprintf("%d errors occurred:\n %s", len(e.errs), strings.Join(msg, "\n ")) |
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| 29 | } |
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| 30 | |||
| 31 | func (e *MultiError) GoString() string { |
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| 32 | return fmt.Sprintf("%#v", e.errs) |
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| 33 | } |
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| 34 | |||
| 35 | func (e *MultiError) Unwrap() []error { |
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| 36 | 13 | if e == nil { |
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| 37 | return nil |
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| 38 | } |
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| 39 | |||
| 40 | 13 | return e.errs |
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| 41 | } |
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| 42 | |||
| 43 | func (e *MultiError) Append(err error) { |
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| 44 | 1003 | if err == nil { |
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| 45 | 1 | return |
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| 46 | } |
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| 47 | |||
| 48 | 1002 | e.mutex.Lock() |
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| 49 | 1002 | defer e.mutex.Unlock() |
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| 50 | |||
| 51 | 1002 | e.errs = append(e.errs, err) |
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| 52 | } |
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| 53 | |||
| 54 | func (e *MultiError) ErrorOrNil() error { |
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| 55 | 2 | if len(e.errs) == 0 { |
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| 56 | 1 | return nil |
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| 57 | } |
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| 58 | |||
| 59 | 1 | return e |
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| 60 | } |
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| 61 |
