nimbus-eth1/nimbus/constants.nim

71 lines
2.7 KiB
Nim

{.used.}
import
eth/common, nimcrypto/hash
proc default(t: typedesc): t = discard
# constants
const
UINT_256_MAX*: UInt256 = high(UInt256)
INT_256_MAX_AS_UINT256* = high(Uint256) shr 1
UINT160CEILING*: UInt256 = 2.u256.pow(160)
# Transactions to ZERO_ADDRESS are legitimate transfers to that account, not
# contract creations. They are used to "burn" Eth. People also send Eth to
# address zero by accident, unrecoverably, due to poor user interface issues.
ZERO_ADDRESS* = default(EthAddress)
# ZERO_HASH256 is the parent hash of genesis blocks.
ZERO_HASH256* = Hash256()
GAS_LIMIT_ADJUSTMENT_FACTOR* = 1_024
BLOCK_REWARD* = 5.u256 * 2.u256 # denoms.ether
UNCLE_DEPTH_PENALTY_FACTOR* = 8.u256
MAX_UNCLE_DEPTH* = 6.u256
MAX_UNCLES* = 2
EMPTY_UNCLE_HASH* = "1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347".toDigest
GENESIS_BLOCK_NUMBER* = 0.toBlockNumber
GENESIS_DIFFICULTY* = 131_072.u256
GENESIS_GAS_LIMIT* = 3_141_592
GENESIS_PARENT_HASH* = ZERO_HASH256
GENESIS_COINBASE* = ZERO_ADDRESS
GENESIS_NONCE* = "\x00\x00\x00\x00\x00\x00\x00B"
GENESIS_MIX_HASH* = ZERO_HASH256
GENESIS_EXTRA_DATA* = ""
GAS_LIMIT_MINIMUM* = 5000
GAS_LIMIT_MAXIMUM* = high(GasInt)
DEFAULT_GAS_LIMIT* = 8_000_000
BLANK_ROOT_HASH* = "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421".toDigest
EMPTY_SHA3* = "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470".toDigest
GAS_MOD_EXP_QUADRATIC_DENOMINATOR* = 20.u256
MAX_PREV_HEADER_DEPTH* = 256.toBlockNumber
MaxCallDepth* = 1024
SECPK1_N* = Uint256.fromHex("fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141")
## Fork specific constants
# See: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-170.md
# and: https://github.com/ethereum/EIPs/issues/170
EIP170_CODE_SIZE_LIMIT* = 24577
# EIP
MaxPrecompilesAddr* = 0xFFFF
EXTRA_SEAL* = ##\
## Fixed number of suffix bytes reserved for signer seal of the `extraData`
## header field. The 65 bytes constant value is for signatures based on the
## standard secp256k1 curve.
65
# End