Official Go implementation of the Ethereum protocol
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go-ethereum/triedb/pathdb/errors.go

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// Copyright 2023 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>
package pathdb
import "errors"
var (
// errDatabaseReadOnly is returned if the database is opened in read only mode
// to prevent any mutation.
errDatabaseReadOnly = errors.New("read only")
// errDatabaseWaitSync is returned if the initial state sync is not completed
// yet and database is disabled to prevent accessing state.
errDatabaseWaitSync = errors.New("waiting for sync")
// errSnapshotStale is returned from data accessors if the underlying layer
// had been invalidated due to the chain progressing forward far enough
// to not maintain the layer's original state.
errSnapshotStale = errors.New("layer stale")
// errUnexpectedHistory is returned if an unmatched state history is applied
// to the database for state rollback.
errUnexpectedHistory = errors.New("unexpected state history")
// errStateUnrecoverable is returned if state is required to be reverted to
// a destination without associated state history available.
errStateUnrecoverable = errors.New("state is unrecoverable")
)