mirror of https://github.com/status-im/nim-eth.git
122 lines
2.9 KiB
Nim
122 lines
2.9 KiB
Nim
import
|
|
./eth_types_rlp
|
|
|
|
export eth_types_rlp
|
|
|
|
const
|
|
EIP155_CHAIN_ID_OFFSET* = 35'i64
|
|
|
|
type
|
|
GasPrice* = ## \
|
|
## Handy definition distinct from `GasInt` which is a commodity unit while
|
|
## the `GasPrice` is the commodity valuation per unit of gas, similar to a
|
|
## kind of currency.
|
|
distinct uint64
|
|
|
|
GasPriceEx* = ## \
|
|
## Similar to `GasPrice` but is allowed to be negative.
|
|
distinct int64
|
|
|
|
proc effectiveGasTip*(tx: Transaction; baseFee: GasPrice): GasPriceEx =
|
|
## The effective miner gas tip for the globally argument `baseFee`. The
|
|
## result (which is a price per gas) might well be negative.
|
|
if tx.txType != TxEip1559:
|
|
(tx.gasPrice - baseFee.int64).GasPriceEx
|
|
else:
|
|
# London, EIP1559
|
|
min(tx.maxPriorityFee, tx.maxFee - baseFee.int64).GasPriceEx
|
|
|
|
proc effectiveGasTip*(tx: Transaction; baseFee: UInt256): GasPriceEx =
|
|
## Variant of `effectiveGasTip()`
|
|
tx.effectiveGasTip(baseFee.truncate(uint64).GasPrice)
|
|
|
|
func rlpEncodeLegacy(tx: Transaction): auto =
|
|
var w = initRlpWriter()
|
|
w.startList(6)
|
|
w.append(tx.nonce)
|
|
w.append(tx.gasPrice)
|
|
w.append(tx.gasLimit)
|
|
w.append(tx.to)
|
|
w.append(tx.value)
|
|
w.append(tx.payload)
|
|
w.finish()
|
|
|
|
func rlpEncodeEip155(tx: Transaction): auto =
|
|
let chainId = (tx.V - EIP155_CHAIN_ID_OFFSET) div 2
|
|
var w = initRlpWriter()
|
|
w.startList(9)
|
|
w.append(tx.nonce)
|
|
w.append(tx.gasPrice)
|
|
w.append(tx.gasLimit)
|
|
w.append(tx.to)
|
|
w.append(tx.value)
|
|
w.append(tx.payload)
|
|
w.append(chainId)
|
|
w.append(0)
|
|
w.append(0)
|
|
w.finish()
|
|
|
|
func rlpEncodeEip2930(tx: Transaction): auto =
|
|
var w = initRlpWriter()
|
|
w.append(TxEip2930)
|
|
w.startList(8)
|
|
w.append(tx.chainId.uint64)
|
|
w.append(tx.nonce)
|
|
w.append(tx.gasPrice)
|
|
w.append(tx.gasLimit)
|
|
w.append(tx.to)
|
|
w.append(tx.value)
|
|
w.append(tx.payload)
|
|
w.append(tx.accessList)
|
|
w.finish()
|
|
|
|
func rlpEncodeEip1559(tx: Transaction): auto =
|
|
var w = initRlpWriter()
|
|
w.append(TxEip1559)
|
|
w.startList(9)
|
|
w.append(tx.chainId.uint64)
|
|
w.append(tx.nonce)
|
|
w.append(tx.maxPriorityFee)
|
|
w.append(tx.maxFee)
|
|
w.append(tx.gasLimit)
|
|
w.append(tx.to)
|
|
w.append(tx.value)
|
|
w.append(tx.payload)
|
|
w.append(tx.accessList)
|
|
w.finish()
|
|
|
|
func rlpEncodeEip4844(tx: Transaction): auto =
|
|
var w = initRlpWriter()
|
|
w.append(TxEip4844)
|
|
w.startList(11)
|
|
w.append(tx.chainId.uint64)
|
|
w.append(tx.nonce)
|
|
w.append(tx.maxPriorityFee)
|
|
w.append(tx.maxFee)
|
|
w.append(tx.gasLimit)
|
|
w.append(tx.to)
|
|
w.append(tx.value)
|
|
w.append(tx.payload)
|
|
w.append(tx.accessList)
|
|
w.append(tx.maxFeePerBlobGas)
|
|
w.append(tx.versionedHashes)
|
|
w.finish()
|
|
|
|
func rlpEncode*(tx: Transaction): auto =
|
|
case tx.txType
|
|
of TxLegacy:
|
|
if tx.V >= EIP155_CHAIN_ID_OFFSET:
|
|
tx.rlpEncodeEip155
|
|
else:
|
|
tx.rlpEncodeLegacy
|
|
of TxEip2930:
|
|
tx.rlpEncodeEip2930
|
|
of TxEip1559:
|
|
tx.rlpEncodeEip1559
|
|
of TxEip4844:
|
|
tx.rlpEncodeEip4844
|
|
|
|
func txHashNoSignature*(tx: Transaction): Hash256 =
|
|
# Hash transaction without signature
|
|
keccakHash(rlpEncode(tx))
|