github.com/annchain/OG@v0.0.9/trie/errors.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package trie
    18  
    19  import (
    20  	"fmt"
    21  	"github.com/annchain/OG/arefactor/og/types"
    22  )
    23  
    24  // MissingNodeError is returned by the trie functions (TryGet, TryUpdate, TryDelete)
    25  // in the case where a trie node is not present in the local database. It contains
    26  // information necessary for retrieving the missing node.
    27  type MissingNodeError struct {
    28  	NodeHash types.Hash // hash of the missing node
    29  	Path     []byte     // hex-encoded path to the missing node
    30  }
    31  
    32  func (err *MissingNodeError) Error() string {
    33  	return fmt.Sprintf("missing trie node %x (path %x)", err.NodeHash, err.Path)
    34  }