61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
// Copyright 2022 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 trie
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import (
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"github.com/ethereum/go-ethereum/rlp"
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)
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func nodeToBytes(n node) []byte {
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w := rlp.NewEncoderBuffer(nil)
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n.encode(w)
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result := w.ToBytes()
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w.Flush()
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return result
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}
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func (n *fullNode) encode(w rlp.EncoderBuffer) {
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offset := w.List()
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for _, c := range n.Children {
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if c != nil {
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c.encode(w)
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} else {
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w.Write(rlp.EmptyString)
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}
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}
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w.ListEnd(offset)
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}
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func (n *shortNode) encode(w rlp.EncoderBuffer) {
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offset := w.List()
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w.WriteBytes(n.Key)
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if n.Val != nil {
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n.Val.encode(w)
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} else {
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w.Write(rlp.EmptyString)
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}
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w.ListEnd(offset)
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}
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func (n hashNode) encode(w rlp.EncoderBuffer) {
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w.WriteBytes(n)
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}
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func (n valueNode) encode(w rlp.EncoderBuffer) {
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w.WriteBytes(n)
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}
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