nimbus-eth1/premix/prestate.nim

47 lines
1.5 KiB
Nim

# Nimbus
# Copyright (c) 2020-2024 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
import
std/strutils,
json, stew/byteutils,
results,
../nimbus/db/[core_db, storage_types], eth/[rlp, common],
../nimbus/tracer
proc generatePrestate*(nimbus, geth: JsonNode, blockNumber: BlockNumber, parent: BlockHeader, blk: EthBlock) =
template header: BlockHeader = blk.header
let
state = nimbus["state"]
headerHash = rlpHash(header)
chainDB = newCoreDbRef(DefaultDbMemory)
kvt = chainDB.newKvt()
discard chainDB.setHead(parent, true)
chainDB.persistTransactions(blockNumber, blk.transactions)
discard chainDB.persistUncles(blk.uncles)
kvt.put(genericHashKey(headerHash).toOpenArray, rlp.encode(header)).isOkOr:
raiseAssert "generatePrestate(): put() failed " & $$error
chainDB.addBlockNumberToHashLookup(header.number, headerHash)
for k, v in state:
let key = hexToSeqByte(k)
let value = hexToSeqByte(v.getStr())
kvt.put(key, value).isOkOr:
raiseAssert "generatePrestate(): put() (loop) failed " & $$error
var metaData = %{
"blockNumber": %blockNumber.toHex,
"geth": geth
}
metaData.dumpMemoryDB(chainDB)
writeFile("block" & $blockNumber & ".json", metaData.pretty())