52 lines
1.5 KiB
Nim
52 lines
1.5 KiB
Nim
import
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std/tables,
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eth/[common, rlp, trie, p2p],
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chronicles, eth/trie/db,
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./db/[db_chain, state_db],
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./constants,
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./chain_config, ./forks, ./p2p/gaslimit
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proc toBlock*(g: Genesis, db: BaseChainDB = nil): BlockHeader =
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let (tdb, pruneTrie) = if db.isNil: (newMemoryDB(), true)
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else: (db.db, db.pruneTrie)
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var trie = initHexaryTrie(tdb)
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var sdb = newAccountStateDB(tdb, trie.rootHash, pruneTrie)
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for address, account in g.alloc:
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sdb.setAccount(address, newAccount(account.nonce, account.balance))
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sdb.setCode(address, account.code)
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for k, v in account.storage:
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sdb.setStorage(address, k, v)
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result = BlockHeader(
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nonce: g.nonce,
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timestamp: g.timestamp,
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extraData: g.extraData,
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gasLimit: g.gasLimit,
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difficulty: g.difficulty,
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mixDigest: g.mixhash,
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coinbase: g.coinbase,
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stateRoot: sdb.rootHash,
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parentHash: GENESIS_PARENT_HASH,
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txRoot: BLANK_ROOT_HASH,
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receiptRoot: BLANK_ROOT_HASH,
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ommersHash: EMPTY_UNCLE_HASH
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)
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if g.baseFeePerGas.isSome:
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result.baseFee = g.baseFeePerGas.get()
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elif db.isNil.not and db.config.toFork(0.toBlockNumber) >= FkLondon:
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result.baseFee = EIP1559_INITIAL_BASE_FEE.u256
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if g.gasLimit.isZero:
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result.gasLimit = GENESIS_GAS_LIMIT
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if g.difficulty.isZero:
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result.difficulty = GENESIS_DIFFICULTY
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proc initializeEmptyDb*(db: BaseChainDB) =
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trace "Writing genesis to DB"
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let b = db.genesis.toBlock(db)
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doAssert(b.blockNumber.isZero, "can't commit genesis block with number > 0")
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discard db.persistHeaderToDb(b)
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