mirror of https://github.com/poanetwork/quorum.git
42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package types
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import (
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"bytes"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/trie"
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)
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type DerivableList interface {
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Len() int
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GetRlp(i int) []byte
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}
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func DeriveSha(list DerivableList) common.Hash {
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keybuf := new(bytes.Buffer)
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trie := new(trie.Trie)
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for i := 0; i < list.Len(); i++ {
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keybuf.Reset()
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rlp.Encode(keybuf, uint(i))
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trie.Update(keybuf.Bytes(), list.GetRlp(i))
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}
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return trie.Hash()
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}
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