113 lines
3.7 KiB
Nim
113 lines
3.7 KiB
Nim
# Nimbus
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# Copyright (c) 2018-2024 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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{.used.}
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import stew/byteutils, eth/common/eth_types
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# proc default(t: typedesc): t = discard -- notused
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# constants
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const
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UINT_256_MAX*: UInt256 = high(UInt256)
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INT_256_MAX_AS_UINT256* = high(UInt256) shr 1
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UINT160CEILING*: UInt256 = 2.u256.pow(160)
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# Transactions to ZERO_ADDRESS are legitimate transfers to that account, not
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# contract creations. They are used to "burn" Eth. People also send Eth to
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# address zero by accident, unrecoverably, due to poor user interface issues.
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ZERO_ADDRESS* = default(EthAddress)
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# ZERO_HASH256 is the parent hash of genesis blocks.
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ZERO_HASH256* = Hash256()
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GAS_LIMIT_ADJUSTMENT_FACTOR* = 1_024
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BLOCK_REWARD* = 5.u256 * 2.u256 # denoms.ether
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UNCLE_DEPTH_PENALTY_FACTOR* = 8.u256
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MAX_UNCLE_DEPTH* = 6
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MAX_UNCLES* = 2
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GENESIS_BLOCK_NUMBER* = 0.BlockNumber
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GENESIS_DIFFICULTY* = 131_072.u256
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GENESIS_GAS_LIMIT* = 3_141_592
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GENESIS_PARENT_HASH* = ZERO_HASH256
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GENESIS_COINBASE* = ZERO_ADDRESS
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GENESIS_NONCE* = "\x00\x00\x00\x00\x00\x00\x00B"
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GENESIS_MIX_HASH* = ZERO_HASH256
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GENESIS_EXTRA_DATA* = ""
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GAS_LIMIT_MINIMUM* = 5000
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GAS_LIMIT_MAXIMUM* = int64.high.GasInt # Maximum the gas limit (2^63-1).
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DEFAULT_GAS_LIMIT* = 8_000_000
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EMPTY_SHA3* =
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"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470".toDigest
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GAS_MOD_EXP_QUADRATIC_DENOMINATOR* = 20.u256
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MAX_PREV_HEADER_DEPTH* = 256'u64
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MaxCallDepth* = 1024
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SECPK1_N* =
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UInt256.fromHex("fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141")
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## Fork specific constants
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# See EIP-170 (https://eips.ethereum.org/EIPS/eip-170). Maximum code size
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# that can be stored for a new contract. Init code when creating a new
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# contract is not subject to this limit.
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EIP170_MAX_CODE_SIZE* = 0x6000
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# See EIP-3860 (https://eips.ethereum.org/EIPS/eip-3860). Maximum initcode
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# size when creating a new contract.
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EIP3860_MAX_INITCODE_SIZE* = 2 * EIP170_MAX_CODE_SIZE
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# EIP
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MaxPrecompilesAddr* = 0xFFFF
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EXTRA_SEAL* = ##\
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## Fixed number of suffix bytes reserved for signer seal of the `extraData`
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## header field. The 65 bytes constant value is for signatures based on the
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## standard secp256k1 curve.
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65
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DEFAULT_RPC_GAS_CAP* = 50_000_000.GasInt
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# EIP-4844 constants
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MAX_CALLDATA_SIZE* = 1 shl 24 # 2^24
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MAX_ACCESS_LIST_SIZE* = 1 shl 24 # 2^24
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MAX_ACCESS_LIST_STORAGE_KEYS* = 1 shl 24 # 2^24
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MAX_TX_WRAP_COMMITMENTS* = 1 shl 12 # 2^12
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VERSIONED_HASH_VERSION_KZG* = 0x01.byte
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FIELD_ELEMENTS_PER_BLOB* = 4096
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GAS_PER_BLOB* = (1 shl 17).uint64 # 2^17
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TARGET_BLOB_GAS_PER_BLOCK* = 393216
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MIN_BLOB_GASPRICE* = 1'u64
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BLOB_GASPRICE_UPDATE_FRACTION* = 3338477'u64
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MAX_BLOB_GAS_PER_BLOCK* = 786432
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MAX_BLOBS_PER_BLOCK* = int(MAX_BLOB_GAS_PER_BLOCK div GAS_PER_BLOB)
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# EIP-4788 addresses
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# BEACON_ROOTS_ADDRESS is the address where historical beacon roots are stored as per EIP-4788
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BEACON_ROOTS_ADDRESS* =
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hexToByteArray[20]("0x000F3df6D732807Ef1319fB7B8bB8522d0Beac02")
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# SYSTEM_ADDRESS is where the system-transaction is sent from as per EIP-4788
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SYSTEM_ADDRESS* = hexToByteArray[20]("0xfffffffffffffffffffffffffffffffffffffffe")
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RIPEMD_ADDR* = block:
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proc initAddress(x: int): EthAddress {.compileTime.} =
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result[19] = x.byte
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initAddress(3)
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# End
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