| 1 | package main |
|---|---|
| 2 | |
| 3 | type errType string |
| 4 | |
| 5 | const constErr errType = "blah" |
| 6 | |
| 7 | func (et errType) Error() string { |
| 8 | return string(et) |
| 9 | } |
| 10 | |
| 11 | var errVar error = errType("foo") |
| 12 | |
| 13 | func genErr(i int) error { |
| 14 | switch i { |
| 15 | case 0: |
| 16 | return constErr |
| 17 | case 1: |
| 18 | return errVar |
| 19 | default: |
| 20 | return nil |
| 21 | } |
| 22 | } |
| 23 | |
| 24 | func unreachable() { |
| 25 | err := errVar // @whicherrs func-dead "err" |
| 26 | _ = err |
| 27 | } |
| 28 | |
| 29 | func main() { |
| 30 | err := genErr(0) // @whicherrs localerrs "err" |
| 31 | _ = err |
| 32 | } |
| 33 |
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