| // Copyright 2020 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| package a | |
| type myError string | |
| func (e myError) Error() string { return string(e) } | |
| const myErrorVal myError = "error" | |
| func IsMyError(err error) bool { | |
| return err == error(myErrorVal) | |
| } |