95 lines
2.6 KiB
Go
95 lines
2.6 KiB
Go
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// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero 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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// This program 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 Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package ipld
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import (
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"github.com/ethereum/go-ethereum/core/types"
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)
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// FromBlockAndReceipts takes a block and processes it
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// to return it a set of IPLD nodes for further processing.
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func FromBlockAndReceipts(block *types.Block, receipts []*types.Receipt) (*EthHeader, []*EthTx, []*EthReceipt, [][]*EthLog, error) {
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// Process the header
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headerNode, err := NewEthHeader(block.Header())
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if err != nil {
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return nil, nil, nil, nil, err
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}
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// Process the txs
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txNodes, err := processTransactions(block.Transactions())
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if err != nil {
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return nil, nil, nil, nil, err
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}
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// Process the receipts and logs
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rctNodes, logNodes, err := processReceiptsAndLogs(receipts)
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return headerNode, txNodes, rctNodes, logNodes, err
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}
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// processTransactions will take the found transactions in a parsed block body
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// to return IPLD node slices for eth-tx
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func processTransactions(txs []*types.Transaction) ([]*EthTx, error) {
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var ethTxNodes []*EthTx
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for _, tx := range txs {
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ethTx, err := NewEthTx(tx)
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if err != nil {
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return nil, err
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}
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ethTxNodes = append(ethTxNodes, ethTx)
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}
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return ethTxNodes, nil
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}
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// processReceiptsAndLogs will take in receipts
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// to return IPLD node slices for eth-rct and eth-log
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func processReceiptsAndLogs(rcts []*types.Receipt) ([]*EthReceipt, [][]*EthLog, error) {
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// Pre allocating memory.
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ethRctNodes := make([]*EthReceipt, len(rcts))
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ethLogNodes := make([][]*EthLog, len(rcts))
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for idx, rct := range rcts {
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logNodes, err := processLogs(rct.Logs)
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if err != nil {
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return nil, nil, err
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}
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ethRct, err := NewReceipt(rct)
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if err != nil {
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return nil, nil, err
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}
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ethRctNodes[idx] = ethRct
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ethLogNodes[idx] = logNodes
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}
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return ethRctNodes, ethLogNodes, nil
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}
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func processLogs(logs []*types.Log) ([]*EthLog, error) {
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logNodes := make([]*EthLog, len(logs))
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for idx, log := range logs {
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logNode, err := NewLog(log)
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if err != nil {
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return nil, err
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}
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logNodes[idx] = logNode
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}
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return logNodes, nil
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}
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