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4ea11b9fb9
Transaction signing is something that happens in a lot of places - this PR introduces primitives for transaction signing in `transaction_utils` such that we can use the same logic across web3/eth1/etc for this simple operation. `transaction_utils` also contains a few more "spec-derived" helpers for working with transactions, such as the computation of a contract address etc that cannot easily be introduced in `transactions` itself without bringing in dependencies like secp and rlp, so they end up in a separate module. Finally, since these modules collect "versions" of these transaction types across different eips, some tests are moved to follow the same structure.
82 lines
2.3 KiB
Nim
82 lines
2.3 KiB
Nim
# eth
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# Copyright (c) 2024 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [].}
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import "."/[addresses, base, hashes]
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export addresses, base, hashes
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const EIP155_CHAIN_ID_OFFSET* = 35'u64
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type
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AccessPair* = object
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address* : Address
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storageKeys*: seq[Bytes32]
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AccessList* = seq[AccessPair]
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Authorization* = object
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chainId*: ChainId
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address*: Address
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nonce*: AccountNonce
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yParity*: uint64
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R*: UInt256
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S*: UInt256
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TxType* = enum
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TxLegacy # 0
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TxEip2930 # 1
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TxEip1559 # 2
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TxEip4844 # 3
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TxEip7702 # 4
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Transaction* = object
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txType* : TxType # EIP-2718
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chainId* : ChainId # EIP-2930
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nonce* : AccountNonce
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gasPrice* : GasInt
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maxPriorityFeePerGas*: GasInt # EIP-1559
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maxFeePerGas* : GasInt # EIP-1559
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gasLimit* : GasInt
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to* : Opt[Address]
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value* : UInt256
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payload* : seq[byte]
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accessList* : AccessList # EIP-2930
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maxFeePerBlobGas*: UInt256 # EIP-4844
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versionedHashes*: seq[VersionedHash] # EIP-4844
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authorizationList*: seq[Authorization]# EIP-7702
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V* : uint64
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R*, S* : UInt256
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# 32 -> UInt256
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# 4096 -> FIELD_ELEMENTS_PER_BLOB
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NetworkBlob* = array[32*4096, byte]
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BlobsBundle* = object
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commitments*: seq[KzgCommitment]
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proofs*: seq[KzgProof]
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blobs*: seq[NetworkBlob]
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# TODO why was this part of eth types?
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NetworkPayload* = ref BlobsBundle
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PooledTransaction* = object
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tx*: Transaction
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networkPayload*: NetworkPayload # EIP-4844
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func destination*(tx: Transaction): Address =
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# use getRecipient if you also want to get
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# the contract address
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tx.to.valueOr(default(Address))
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func isEip155*(tx: Transaction): bool =
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tx.V >= EIP155_CHAIN_ID_OFFSET
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func contractCreation*(tx: Transaction): bool =
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tx.to.isNone
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