44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
/*
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* Minimalist Object Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses)/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Package probe implements a simple mechanism to trace and return errors in large programs.
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package probe
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// wrappedError implements a container for *probe.Error.
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type wrappedError struct {
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err *Error
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}
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// WrapError function wraps a *probe.Error into a 'error' compatible duck type.
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func WrapError(err *Error) error {
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return &wrappedError{err: err}
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}
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// UnwrapError tries to convert generic 'error' into typed *probe.Error and returns true, false otherwise.
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func UnwrapError(err error) (*Error, bool) {
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switch e := err.(type) {
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case *wrappedError:
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return e.err, true
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default:
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return nil, false
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}
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}
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// Error interface method.
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func (w *wrappedError) Error() string {
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return w.err.String()
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}
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