540 lines
21 KiB
Nim
540 lines
21 KiB
Nim
# Nimbus
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# Copyright (c) 2021 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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import
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std/[tables, strutils, options, times],
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eth/[common, rlp, p2p], stint, stew/[byteutils],
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json_serialization, chronicles,
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json_serialization/std/options as jsoptions,
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json_serialization/std/tables as jstable,
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json_serialization/lexer,
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"."/[forks, genesis_alloc]
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{.push raises: [Defect].}
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type
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CliqueOptions = object
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epoch : Option[int]
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period: Option[int]
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ChainOptions = object
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chainId : ChainId
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homesteadBlock : Option[BlockNumber]
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daoForkBlock : Option[BlockNumber]
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daoForkSupport : bool
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eip150Block : Option[BlockNumber]
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eip150Hash : Hash256
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eip155Block : Option[BlockNumber]
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eip158Block : Option[BlockNumber]
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byzantiumBlock : Option[BlockNumber]
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constantinopleBlock: Option[BlockNumber]
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petersburgBlock : Option[BlockNumber]
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istanbulBlock : Option[BlockNumber]
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muirGlacierBlock : Option[BlockNumber]
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berlinBlock : Option[BlockNumber]
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londonBlock : Option[BlockNumber]
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arrowGlacierBlock : Option[BlockNumber]
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mergeForkBlock : Option[BlockNumber] ##\
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## EIP-3675 (TheMerge) switch block: "For the purposes of the EIP-2124\
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## fork identifier, nodes implementing this EIP *MUST* set the\
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## `FORK_NEXT` parameter to the `FORK_NEXT_VALUE`."
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clique : CliqueOptions
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terminalTotalDifficulty*: Option[UInt256]
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ChainConfig* = ref object
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chainId* : ChainId
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homesteadBlock* : BlockNumber
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daoForkBlock* : BlockNumber
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daoForkSupport* : bool
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# EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150)
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eip150Block* : BlockNumber
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eip150Hash* : Hash256
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eip155Block* : BlockNumber
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eip158Block* : BlockNumber
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byzantiumBlock* : BlockNumber
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constantinopleBlock*: BlockNumber
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petersburgBlock* : BlockNumber
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istanbulBlock* : BlockNumber
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muirGlacierBlock* : BlockNumber
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berlinBlock* : BlockNumber
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londonBlock* : BlockNumber
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arrowGlacierBlock* : BlockNumber
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mergeForkBlock* : Option[BlockNumber] # EIP-3675 (TheMerge) switch block
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poaEngine* : bool
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cliquePeriod* : int
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cliqueEpoch* : int
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terminalTotalDifficulty*: Option[UInt256]
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Genesis* = ref object
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nonce* : BlockNonce
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timestamp* : EthTime
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extraData* : seq[byte]
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gasLimit* : GasInt
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difficulty* : DifficultyInt
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mixHash* : Hash256
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coinbase* : EthAddress
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alloc* : GenesisAlloc
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number* : BlockNumber
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gasUser* : GasInt
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parentHash* : Hash256
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baseFeePerGas*: Option[UInt256]
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GenesisAlloc* = Table[EthAddress, GenesisAccount]
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GenesisAccount* = object
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code* : seq[byte]
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storage*: Table[UInt256, UInt256]
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balance*: UInt256
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nonce* : AccountNonce
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NetworkParams* = object
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config* : ChainConfig
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genesis*: Genesis
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AddressBalance = object
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address {.rlpCustomSerialization.}: EthAddress
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account {.rlpCustomSerialization.}: GenesisAccount
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CustomChain = object
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config : ChainOptions
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genesis: Genesis
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GenesisFile* = object
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config : ChainOptions
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nonce* : BlockNonce
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timestamp* : EthTime
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extraData* : seq[byte]
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gasLimit* : GasInt
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difficulty* : DifficultyInt
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mixHash* : Hash256
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coinbase* : EthAddress
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alloc* : GenesisAlloc
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number* : BlockNumber
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gasUser* : GasInt
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parentHash* : Hash256
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baseFeePerGas*: Option[UInt256]
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const
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CustomNet* = 0.NetworkId
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# these are public network id
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MainNet* = 1.NetworkId
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# No longer used: MordenNet = 2
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RopstenNet* = 3.NetworkId
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RinkebyNet* = 4.NetworkId
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GoerliNet* = 5.NetworkId
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KovanNet* = 42.NetworkId
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SepoliaNet* = 11155111.NetworkId
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proc read(rlp: var Rlp, x: var AddressBalance, _: type EthAddress): EthAddress
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{.gcsafe, raises: [Defect,RlpError].} =
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let val = rlp.read(UInt256).toByteArrayBE()
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result[0 .. ^1] = val.toOpenArray(12, val.high)
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proc read(rlp: var Rlp, x: var AddressBalance, _: type GenesisAccount): GenesisAccount
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{.gcsafe, raises: [Defect,RlpError].} =
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GenesisAccount(balance: rlp.read(UInt256))
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func decodePrealloc*(data: seq[byte]): GenesisAlloc
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{.gcsafe, raises: [Defect,RlpError].} =
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for tup in rlp.decode(data, seq[AddressBalance]):
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result[tup.address] = tup.account
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# borrowed from `lexer.hexCharValue()` :)
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proc fromHex(c: char): int =
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case c
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of '0'..'9': ord(c) - ord('0')
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of 'a'..'f': ord(c) - ord('a') + 10
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of 'A'..'F': ord(c) - ord('A') + 10
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else: -1
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proc readValue(reader: var JsonReader, value: var UInt256)
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{.gcsafe, raises: [Defect,CatchableError].} =
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## Mixin for `Json.loadFile()`. Note that this driver applies the same
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## to `BlockNumber` fields as well as generic `UInt265` fields like the
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## account `balance`.
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var (accu, ok) = (0.u256, true)
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if reader.lexer.lazyTok == tkNumeric:
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try:
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reader.lexer.customIntValueIt:
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accu = accu * 10 + it.u256
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ok = reader.lexer.lazyTok == tkExInt # non-negative wanted
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except:
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ok = false
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elif reader.lexer.lazyTok == tkQuoted:
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try:
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var (sLen, base) = (0, 10)
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reader.lexer.customTextValueIt:
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if ok:
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var num = it.fromHex
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if base <= num:
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ok = false # cannot be larger than base
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elif sLen < 2:
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if 0 <= num:
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accu = accu * base.u256 + num.u256
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elif sLen == 1 and it in {'x', 'X'}:
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base = 16 # handle "0x" prefix
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else:
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ok = false
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sLen.inc
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elif num < 0:
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ok = false # not a hex digit
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elif base == 10:
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accu = accu * 10 + num.u256
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else:
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accu = accu * 16 + num.u256
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except:
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reader.raiseUnexpectedValue("numeric string parse error")
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else:
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reader.raiseUnexpectedValue("expect int or hex/int string")
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if not ok:
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reader.raiseUnexpectedValue("Uint256 parse error")
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value = accu
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reader.lexer.next()
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proc readValue(reader: var JsonReader, value: var ChainId)
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = reader.readValue(int).ChainId
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proc readValue(reader: var JsonReader, value: var Hash256)
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = Hash256.fromHex(reader.readValue(string))
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proc readValue(reader: var JsonReader, value: var BlockNonce)
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = fromHex[uint64](reader.readValue(string)).toBlockNonce
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proc readValue(reader: var JsonReader, value: var EthTime)
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = fromHex[int64](reader.readValue(string)).fromUnix
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proc readValue(reader: var JsonReader, value: var seq[byte])
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = hexToSeqByte(reader.readValue(string))
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proc readValue(reader: var JsonReader, value: var GasInt)
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = fromHex[GasInt](reader.readValue(string))
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proc readValue(reader: var JsonReader, value: var EthAddress)
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = parseAddress(reader.readValue(string))
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proc readValue(reader: var JsonReader, value: var AccountNonce)
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{.gcsafe, raises: [Defect,CatchableError].} =
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value = fromHex[uint64](reader.readValue(string))
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template to(a: string, b: type EthAddress): EthAddress =
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# json_serialization decode table stuff
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parseAddress(a)
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template to(a: string, b: type UInt256): UInt256 =
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# json_serialization decode table stuff
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UInt256.fromHex(a)
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proc loadNetworkParams*(cc: CustomChain, cg: var NetworkParams): bool =
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if cc.genesis.isNil:
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cg.genesis = Genesis()
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warn "Loaded custom network configuration contains no 'genesis' data"
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else:
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cg.genesis = cc.genesis
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cg.config = ChainConfig()
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cg.config.chainId = cc.config.chainId
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cg.config.daoForkSupport = cc.config.daoForkSupport
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cg.config.eip150Hash = cc.config.eip150Hash
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cg.config.poaEngine = false
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if cc.config.clique.period.isSome or
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cc.config.clique.epoch.isSome:
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cg.config.poaEngine = true
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# set default clique period to 1 second.
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cg.config.cliquePeriod = cc.config.clique.period.get(1)
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if cc.config.clique.epoch.isSome:
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cg.config.cliqueEpoch = cc.config.clique.epoch.get()
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cg.config.terminalTotalDifficulty = cc.config.terminalTotalDifficulty
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template validateFork(forkName: untyped, nextBlock: BlockNumber) =
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let fork = astToStr(forkName)
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if cc.config.forkName.isSome:
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cg.config.forkName = cc.config.forkName.get()
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else:
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cg.config.forkName = nextBlock
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if cg.config.forkName > nextBlock:
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error "Forks can't be assigned out of order", fork=fork
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return false
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# Process optional block numbers in non-increasing order (otherwise error.)
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#
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# See also the go-lang ref implementation:
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# params/config.go:508: func (c *ChainConfig) CheckConfigForkOrder() error {
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#
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# The difference to the ref implementation is that we have no optional values
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# everywhere for the block numbers but rather assign the next larger block.
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validateFork(arrowGlacierBlock, high(BlockNumber))
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validateFork(londonBlock, cg.config.arrowGlacierBlock)
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validateFork(berlinBlock, cg.config.londonBlock)
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validateFork(muirGlacierBlock, cg.config.berlinBlock)
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validateFork(istanbulBlock, cg.config.muirGlacierBlock)
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validateFork(petersburgBlock, cg.config.istanbulBlock)
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validateFork(constantinopleBlock, cg.config.petersburgBlock)
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validateFork(byzantiumBlock, cg.config.constantinopleBlock)
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validateFork(eip158Block, cg.config.byzantiumBlock)
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validateFork(eip155Block, cg.config.eip158Block)
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validateFork(eip150Block, cg.config.eip155Block)
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validateFork(daoForkBlock, cg.config.eip150Block)
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validateFork(homesteadBlock, cg.config.daoForkBlock)
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# Only this last entry remains optional.
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cg.config.mergeForkBlock = cc.config.mergeForkBlock
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if cc.config.mergeForkBlock.isSome:
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# Must be larger than the largest block
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let topBlock = min(cg.config.arrowGlacierBlock, cg.config.londonBlock)
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if cg.config.mergeForkBlock.get < topBlock:
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error "Forks can't be assigned out of order", fork="mergeForkBlock"
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return false
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return true
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proc loadNetworkParams*(fileName: string, cg: var NetworkParams):
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bool {.raises: [Defect,SerializationError].} =
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var cc: CustomChain
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try:
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cc = Json.loadFile(fileName, CustomChain, allowUnknownFields = true)
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except IOError as e:
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error "Network params I/O error", fileName, msg=e.msg
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return false
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except JsonReaderError as e:
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error "Invalid network params file format", fileName, msg=e.formatMsg("")
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return false
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except Exception as e:
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error "Error loading network params file",
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fileName, exception = e.name, msg = e.msg
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return false
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loadNetworkParams(cc, cg)
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proc decodeNetworkParams*(jsonString: string, cg: var NetworkParams): bool =
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var cc: CustomChain
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try:
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cc = Json.decode(jsonString, CustomChain, allowUnknownFields = true)
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except JsonReaderError as e:
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error "Invalid network params format", msg=e.formatMsg("")
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return false
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except:
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var msg = getCurrentExceptionMsg()
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error "Error decoding network params", msg
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return false
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loadNetworkParams(cc, cg)
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proc parseGenesisAlloc*(data: string, ga: var GenesisAlloc): bool
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{.gcsafe, raises: [Defect,CatchableError].} =
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try:
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ga = Json.decode(data, GenesisAlloc, allowUnknownFields = true)
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except JsonReaderError as e:
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error "Invalid genesis config file format", msg=e.formatMsg("")
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return false
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return true
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proc toFork*(c: ChainConfig, number: BlockNumber): Fork =
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## Map to EVM fork, which doesn't include the DAO or Glacier forks.
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if number >= c.londonBlock: FkLondon
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elif number >= c.berlinBlock: FkBerlin
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elif number >= c.istanbulBlock: FkIstanbul
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elif number >= c.petersburgBlock: FkPetersburg
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elif number >= c.constantinopleBlock: FkConstantinople
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elif number >= c.byzantiumBlock: FkByzantium
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elif number >= c.eip158Block: FkSpurious
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elif number >= c.eip150Block: FkTangerine
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elif number >= c.homesteadBlock: FkHomestead
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else: FkFrontier
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proc chainConfigForNetwork*(id: NetworkId): ChainConfig =
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# For some public networks, NetworkId and ChainId value are identical
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# but that is not always the case
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result = case id
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of MainNet:
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ChainConfig(
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poaEngine: false,
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chainId: MainNet.ChainId,
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# Genesis (Frontier): # 2015-07-30 15:26:13 UTC
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# Frontier Thawing: 200_000.toBlockNumber, # 2015-09-07 21:33:09 UTC
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homesteadBlock: 1_150_000.toBlockNumber, # 2016-03-14 18:49:53 UTC
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daoForkBlock: 1_920_000.toBlockNumber, # 2016-07-20 13:20:40 UTC
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daoForkSupport: true,
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eip150Block: 2_463_000.toBlockNumber, # 2016-10-18 13:19:31 UTC
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eip150Hash: toDigest("2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
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eip155Block: 2_675_000.toBlockNumber, # Same as EIP-158
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eip158Block: 2_675_000.toBlockNumber, # 2016-11-22 16:15:44 UTC
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byzantiumBlock: 4_370_000.toBlockNumber, # 2017-10-16 05:22:11 UTC
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constantinopleBlock: 7_280_000.toBlockNumber, # Skipped on Mainnet
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petersburgBlock: 7_280_000.toBlockNumber, # 2019-02-28 19:52:04 UTC
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istanbulBlock: 9_069_000.toBlockNumber, # 2019-12-08 00:25:09 UTC
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muirGlacierBlock: 9_200_000.toBlockNumber, # 2020-01-02 08:30:49 UTC
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berlinBlock: 12_244_000.toBlockNumber, # 2021-04-15 10:07:03 UTC
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londonBlock: 12_965_000.toBlockNumber, # 2021-08-05 12:33:42 UTC
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arrowGlacierBlock: 13_773_000.toBlockNumber, # 2021-12-09 19:55:23 UTC
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mergeForkBlock: none(BlockNumber),
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)
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of RopstenNet:
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ChainConfig(
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poaEngine: false,
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chainId: RopstenNet.ChainId,
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# Genesis: # 2016-11-20 11:48:50 UTC
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homesteadBlock: 0.toBlockNumber, # Included in genesis
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daoForkSupport: false,
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eip150Block: 0.toBlockNumber, # Included in genesis
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eip150Hash: toDigest("41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d"),
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eip155Block: 10.toBlockNumber, # Same as EIP-158
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eip158Block: 10.toBlockNumber, # 2016-11-20 11:50:44 UTC
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byzantiumBlock: 1_700_000.toBlockNumber, # 2017-09-19 01:08:28 UTC
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constantinopleBlock: 4_230_000.toBlockNumber, # 2018-10-13 17:19:06 UTC
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petersburgBlock: 4_939_394.toBlockNumber, # 2019-02-02 07:39:08 UTC
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istanbulBlock: 6_485_846.toBlockNumber, # 2019-09-30 03:38:06 UTC
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muirGlacierBlock: 7_117_117.toBlockNumber, # 2020-01-13 06:37:37 UTC
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berlinBlock: 9_812_189.toBlockNumber, # 2021-03-10 13:32:08 UTC
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londonBlock: 10_499_401.toBlockNumber, # 2021-06-24 02:03:37 UTC
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arrowGlacierBlock: high(BlockNumber), # No current plan
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mergeForkBlock: none(BlockNumber),
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)
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of RinkebyNet:
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ChainConfig(
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poaEngine: true,
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chainId: RinkebyNet.ChainId,
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# Genesis: # 2017-04-12 15:20:50 UTC
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homesteadBlock: 1.toBlockNumber, # 2017-04-12 15:20:58 UTC
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daoForkSupport: false,
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eip150Block: 2.toBlockNumber, # 2017-04-12 15:21:14 UTC
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eip150Hash: toDigest("9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9"),
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eip155Block: 3.toBlockNumber, # Same as EIP-158
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eip158Block: 3.toBlockNumber, # 2017-04-12 15:21:29 UTC
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byzantiumBlock: 1_035_301.toBlockNumber, # 2017-10-09 12:08:23 UTC
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constantinopleBlock: 3_660_663.toBlockNumber, # 2019-01-09 13:00:55 UTC
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petersburgBlock: 4_321_234.toBlockNumber, # 2019-05-04 05:32:45 UTC
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istanbulBlock: 5_435_345.toBlockNumber, # 2019-11-13 18:21:53 UTC
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muirGlacierBlock: 8_290_928.toBlockNumber, # Skipped on Rinkeby
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berlinBlock: 8_290_928.toBlockNumber, # 2021-03-24 14:48:36 UTC
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londonBlock: 8_897_988.toBlockNumber, # 2021-07-08 01:27:32 UTC
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arrowGlacierBlock: high(BlockNumber), # No current plan
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mergeForkBlock: none(BlockNumber),
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)
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of GoerliNet:
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ChainConfig(
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poaEngine: true,
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chainId: GoerliNet.ChainId,
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# Genesis: # 2015-07-30 15:26:13 UTC
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homesteadBlock: 0.toBlockNumber, # Included in genesis
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daoForkSupport: false,
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eip150Block: 0.toBlockNumber, # Included in genesis
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eip150Hash: toDigest("0000000000000000000000000000000000000000000000000000000000000000"),
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eip155Block: 0.toBlockNumber, # Included in genesis
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eip158Block: 0.toBlockNumber, # Included in genesis
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byzantiumBlock: 0.toBlockNumber, # Included in genesis
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constantinopleBlock: 0.toBlockNumber, # Included in genesis
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petersburgBlock: 0.toBlockNumber, # Included in genesis
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istanbulBlock: 1_561_651.toBlockNumber, # 2019-10-30 13:53:05 UTC
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muirGlacierBlock: 4_460_644.toBlockNumber, # Skipped in Goerli
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berlinBlock: 4_460_644.toBlockNumber, # 2021-03-18 05:29:51 UTC
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londonBlock: 5_062_605.toBlockNumber, # 2021-07-01 03:19:39 UTC
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arrowGlacierBlock: high(BlockNumber), # No current plan
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mergeForkBlock: none(BlockNumber),
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)
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of SepoliaNet:
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ChainConfig(
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poaEngine: false,
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chainId: SepoliaNet.ChainId,
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arrowGlacierBlock: high(BlockNumber), # No current plan
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mergeForkBlock: none(BlockNumber),
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)
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else:
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ChainConfig()
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proc genesisBlockForNetwork(id: NetworkId): Genesis
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{.gcsafe, raises: [Defect, ValueError, RlpError].} =
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result = case id
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of MainNet:
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Genesis(
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nonce: 66.toBlockNonce,
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extraData: hexToSeqByte("0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa"),
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gasLimit: 5000,
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difficulty: 17179869184.u256,
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alloc: decodePrealloc(mainnetAllocData)
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)
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of RopstenNet:
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Genesis(
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nonce: 66.toBlockNonce,
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extraData: hexToSeqByte("0x3535353535353535353535353535353535353535353535353535353535353535"),
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gasLimit: 16777216,
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difficulty: 1048576.u256,
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alloc: decodePrealloc(testnetAllocData)
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)
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of RinkebyNet:
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Genesis(
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nonce: 0.toBlockNonce,
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timestamp: initTime(0x58ee40ba, 0),
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extraData: hexToSeqByte("0x52657370656374206d7920617574686f7269746168207e452e436172746d616e42eb768f2244c8811c63729a21a3569731535f067ffc57839b00206d1ad20c69a1981b489f772031b279182d99e65703f0076e4812653aab85fca0f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"),
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gasLimit: 4700000,
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difficulty: 1.u256,
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alloc: decodePrealloc(rinkebyAllocData)
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)
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of GoerliNet:
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Genesis(
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nonce: 0.toBlockNonce,
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timestamp: initTime(0x5c51a607, 0),
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extraData: hexToSeqByte("0x22466c6578692069732061207468696e6722202d204166726900000000000000e0a2bd4258d2768837baa26a28fe71dc079f84c70000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"),
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gasLimit: 0xa00000,
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difficulty: 1.u256,
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alloc: decodePrealloc(goerliAllocData)
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)
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of SepoliaNet:
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Genesis(
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nonce: 0.toBlockNonce,
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timestamp: initTime(0x6159af19, 0),
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extraData: hexToSeqByte("0x5365706f6c69612c20417468656e732c204174746963612c2047726565636521"),
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gasLimit: 0x1c9c380,
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difficulty: 0x20000.u256,
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alloc: decodePrealloc(sepoliaAllocData)
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)
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else:
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Genesis()
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proc networkParams*(id: NetworkId): NetworkParams
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{.gcsafe, raises: [Defect, ValueError, RlpError].} =
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result.genesis = genesisBlockForNetwork(id)
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result.config = chainConfigForNetwork(id)
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proc `==`*(a, b: ChainId): bool =
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a.uint64 == b.uint64
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proc `==`*(a, b: Genesis): bool =
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if a.isNil and b.isNil: return true
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if a.isNil and not b.isNil: return false
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if not a.isNil and b.isNil: return false
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a[] == b[]
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proc `==`*(a, b: ChainConfig): bool =
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if a.isNil and b.isNil: return true
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if a.isNil and not b.isNil: return false
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if not a.isNil and b.isNil: return false
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a[] == b[]
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