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master
pkg/probe/wrapper.go
44 строки
1 KB
Harshavardhana
change license to AGPLv3
12 май 2021, 03:45
12 май 2021, 03:45
1402987
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// Copyright (c) 2015-2021 MinIO, Inc. // // This file is part of MinIO Object Storage stack // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU Affero General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Affero General Public License for more details. // // You should have received a copy of the GNU Affero General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. // 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() }