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legacy.go
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legacy.go
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// Copyright 2022 The 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 types
import (
"errors"
"github.com/0xsequence/ethkit/go-ethereum/rlp"
)
// IsLegacyStoredReceipts tries to parse the RLP-encoded blob
// first as an array of v3 stored receipt, then v4 stored receipt and
// returns true if successful.
func IsLegacyStoredReceipts(raw []byte) (bool, error) {
var v3 []v3StoredReceiptRLP
if err := rlp.DecodeBytes(raw, &v3); err == nil {
return true, nil
}
var v4 []v4StoredReceiptRLP
if err := rlp.DecodeBytes(raw, &v4); err == nil {
return true, nil
}
var v5 []storedReceiptRLP
// Check to see valid fresh stored receipt
if err := rlp.DecodeBytes(raw, &v5); err == nil {
return false, nil
}
return false, errors.New("value is not a valid receipt encoding")
}
// ConvertLegacyStoredReceipts takes the RLP encoding of an array of legacy
// stored receipts and returns a fresh RLP-encoded stored receipt.
func ConvertLegacyStoredReceipts(raw []byte) ([]byte, error) {
var receipts []ReceiptForStorage
if err := rlp.DecodeBytes(raw, &receipts); err != nil {
return nil, err
}
return rlp.EncodeToBytes(&receipts)
}