125 lines
4.5 KiB
Nim
125 lines
4.5 KiB
Nim
# Nimbus
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# Copyright (c) 2022 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) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except
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# according to those terms.
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import
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std/times,
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../../nimbus/common/common,
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./types
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export
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types
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const
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BlockNumberZero: BlockNumber = 0.toBlockNumber
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BlockNumberFive: BlockNumber = 5.toBlockNumber
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TimeZero: EthTime = fromUnix(0)
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proc createForkTransitionTable(transitionFork: HardFork, b: Option[BlockNumber], t: Option[EthTime], ttd: Option[DifficultyInt]): ForkTransitionTable =
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proc blockNumberToUse(f: HardFork): Option[BlockNumber] =
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if f < transitionFork:
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some(BlockNumberZero)
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elif f == transitionFork:
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b
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else:
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none(BlockNumber)
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proc timeToUse(f: HardFork): Option[EthTime] =
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if f < transitionFork:
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some(TimeZero)
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elif f == transitionFork:
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t
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else:
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none(EthTime)
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for f in low(HardFork) .. lastPurelyBlockNumberBasedFork:
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result.blockNumberThresholds[f] = blockNumberToUse(f)
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result.mergeForkTransitionThreshold.blockNumber = blockNumberToUse(HardFork.MergeFork)
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result.mergeForkTransitionThreshold.ttd = ttd
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for f in firstTimeBasedFork .. high(HardFork):
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result.timeThresholds[f] = timeToUse(f)
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proc assignNumber(c: ChainConfig, transitionFork: HardFork, n: BlockNumber) =
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let table = createForkTransitionTable(transitionFork, some(n), none(EthTime), none(DifficultyInt))
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c.populateFromForkTransitionTable(table)
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proc assignTime(c: ChainConfig, transitionFork: HardFork, t: EthTime) =
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let table = createForkTransitionTable(transitionFork, none(BlockNumber), some(t), none(DifficultyInt))
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c.populateFromForkTransitionTable(table)
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func getChainConfig*(network: string, c: ChainConfig) =
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c.daoForkSupport = false
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c.chainId = 1.ChainId
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c.terminalTotalDifficulty = none(UInt256)
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case network
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of $TestFork.Frontier:
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c.assignNumber(HardFork.Frontier, BlockNumberZero)
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of $TestFork.Homestead:
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c.assignNumber(HardFork.Homestead, BlockNumberZero)
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of $TestFork.EIP150:
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c.assignNumber(HardFork.Tangerine, BlockNumberZero)
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of $TestFork.EIP158:
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c.assignNumber(HardFork.Spurious, BlockNumberZero)
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of $TestFork.Byzantium:
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c.assignNumber(HardFork.Byzantium, BlockNumberZero)
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of $TestFork.Constantinople:
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c.assignNumber(HardFork.Constantinople, BlockNumberZero)
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of $TestFork.ConstantinopleFix:
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c.assignNumber(HardFork.Petersburg, BlockNumberZero)
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of $TestFork.Istanbul:
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c.assignNumber(HardFork.Istanbul, BlockNumberZero)
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of $TestFork.FrontierToHomesteadAt5:
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c.assignNumber(HardFork.Homestead, BlockNumberFive)
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of $TestFork.HomesteadToEIP150At5:
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c.assignNumber(HardFork.Tangerine, BlockNumberFive)
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of $TestFork.HomesteadToDaoAt5:
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c.assignNumber(HardFork.DAOFork, BlockNumberFive)
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c.daoForkSupport = true
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of $TestFork.EIP158ToByzantiumAt5:
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c.assignNumber(HardFork.Byzantium, BlockNumberFive)
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of $TestFork.ByzantiumToConstantinopleAt5:
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c.assignNumber(HardFork.Constantinople, BlockNumberFive)
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of $TestFork.ByzantiumToConstantinopleFixAt5:
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c.assignNumber(HardFork.Petersburg, BlockNumberFive)
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c.constantinopleBlock = some(BlockNumberFive)
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of $TestFork.ConstantinopleFixToIstanbulAt5:
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c.assignNumber(HardFork.Istanbul, BlockNumberFive)
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of $TestFork.Berlin:
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c.assignNumber(HardFork.Berlin, BlockNumberZero)
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of $TestFork.BerlinToLondonAt5:
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c.assignNumber(HardFork.London, BlockNumberFive)
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of $TestFork.London:
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c.assignNumber(HardFork.London, BlockNumberZero)
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of $TestFork.ArrowGlacier:
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c.assignNumber(HardFork.ArrowGlacier, BlockNumberZero)
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of $TestFork.GrayGlacier:
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c.assignNumber(HardFork.GrayGlacier, BlockNumberZero)
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of $TestFork.Merge:
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c.assignNumber(HardFork.MergeFork, BlockNumberZero)
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of $TestFork.ArrowGlacierToMergeAtDiffC0000:
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c.assignNumber(HardFork.GrayGlacier, BlockNumberZero)
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c.terminalTotalDifficulty = some(0xC0000.u256)
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of $TestFork.Shanghai:
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c.assignTime(HardFork.Shanghai, TimeZero)
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of $TestFork.MergeToShanghaiAtTime15k:
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c.assignTime(HardFork.Shanghai, fromUnix(15000))
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of $TestFork.Cancun:
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c.assignTime(HardFork.Cancun, TimeZero)
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else:
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raise newException(ValueError, "unsupported network " & network)
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func getChainConfig*(network: string): ChainConfig =
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let c = ChainConfig()
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getChainConfig(network, c)
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result = c
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