You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.3 KiB
44 lines
1.3 KiB
![]()
9 years ago
|
/*
|
||
|
* Minimalist Object Storage, (C) 2015 Minio, Inc.
|
||
|
*
|
||
|
* 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 probe implements a simple mechanism to trace and return errors in large programs.
|
||
|
package probe
|
||
|
|
||
|
// wrappedError implements a container for *probe.Error.
|
||
|
type wrappedError struct {
|
||
|
err *Error
|
||
|
}
|
||
|
|
||
|
// WrapError function wraps a *probe.Error into a 'error' compatible duck type.
|
||
|
func WrapError(err *Error) error {
|
||
|
return &wrappedError{err: err}
|
||
|
}
|
||
|
|
||
|
// UnwrapError tries to convert generic 'error' into typed *probe.Error and returns true, false otherwise.
|
||
|
func UnwrapError(err error) (*Error, bool) {
|
||
|
switch e := err.(type) {
|
||
|
case *wrappedError:
|
||
|
return e.err, true
|
||
|
default:
|
||
|
return nil, false
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Error interface method.
|
||
|
func (w *wrappedError) Error() string {
|
||
|
return w.err.String()
|
||
|
}
|