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errors.go
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errors.go
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// Copyright 2015 The CortexTheseus Authors
// This file is part of the CortexTheseus library.
//
// The CortexTheseus 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 CortexTheseus 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 CortexTheseus library. If not, see <http://www.gnu.org/licenses/>.
package trie
import (
"fmt"
"github.com/CortexFoundation/CortexTheseus/common"
)
// MissingNodeError is returned by the trie functions (TryGet, TryUpdate, TryDelete)
// in the case where a trie node is not present in the local database. It contains
// information necessary for retrieving the missing node.
type MissingNodeError struct {
NodeHash common.Hash // hash of the missing node
Path []byte // hex-encoded path to the missing node
}
func (err *MissingNodeError) Error() string {
return fmt.Sprintf("missing trie node %x (path %x)", err.NodeHash, err.Path)
}