go-ethereum/trie/bintrie/internal_node.go
CPerezz b3b86a873a
trie/bintrie: merge makeKeyPath into keyToPath
Drop the panic-on-error variant. All callers are inside methods
that already propagate errors, so the error-returning form is the
right default.
2026-04-18 18:38:37 +02:00

42 lines
1.2 KiB
Go

// Copyright 2025 go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package bintrie
import (
"errors"
"github.com/ethereum/go-ethereum/common"
)
func keyToPath(depth int, key []byte) ([]byte, error) {
if depth >= 31*8 {
return nil, errors.New("node too deep")
}
path := make([]byte, 0, depth+1)
for i := range depth + 1 {
bit := key[i/8] >> (7 - (i % 8)) & 1
path = append(path, bit)
}
return path, nil
}
type InternalNode struct {
left, right NodeRef
depth uint8
mustRecompute bool
hash common.Hash
}