| Ben Clayton | a2a00e2 | 2019-02-16 01:05:23 +0000 | [diff] [blame^] | 1 | // Copyright 2019 The SwiftShader Authors. All Rights Reserved. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | // Package cause provides functions for building wrapped errors. |
| 16 | package cause |
| 17 | |
| 18 | import ( |
| 19 | "fmt" |
| 20 | ) |
| 21 | |
| 22 | // errWithCause is an error that wrap an inner error with additional info. |
| 23 | type errWithCause struct { |
| 24 | cause error |
| 25 | msg string |
| 26 | } |
| 27 | |
| 28 | func (e errWithCause) Error() string { return fmt.Sprintf("%s. Cause: %v", e.msg, e.cause) } |
| 29 | |
| 30 | // Wrap returns a new error wrapping cause with the additional message. |
| 31 | func Wrap(cause error, msg string, args ...interface{}) error { |
| 32 | return errWithCause{cause, fmt.Sprintf(msg, args...)} |
| 33 | } |
