| // Copyright 2019 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Package cause provides functions for building wrapped errors. |
| package cause |
| |
| import ( |
| "fmt" |
| ) |
| |
| // errWithCause is an error that wrap an inner error with additional info. |
| type errWithCause struct { |
| cause error |
| msg string |
| } |
| |
| func (e errWithCause) Error() string { return fmt.Sprintf("%s. Cause: %v", e.msg, e.cause) } |
| |
| // Wrap returns a new error wrapping cause with the additional message. |
| func Wrap(cause error, msg string, args ...interface{}) error { |
| return errWithCause{cause, fmt.Sprintf(msg, args...)} |
| } |
