Roy Crihfield
761d60acdf
The Geth `core/state` and `trie` packages underwent a big refactor between `v1.11.6` and `1.13.14`. This code, which was adapted from those, needed corresponding updates. To do this I applied the diff patches from Geth directly where possible and in some places had to clone new parts of the Geth code and adapt them. In order to make this process as straightforward as possible in the future, I've attempted to minimize the number of changes vs. Geth and added some documentation in the `trie_by_cid` package. Reviewed-on: #5
65 lines
1.5 KiB
Go
65 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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func (n rawNode) encode(w rlp.EncoderBuffer) {
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w.Write(n)
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}
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