reth_primitives::transaction

Enum Transaction

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pub enum Transaction {
    Legacy(TxLegacy),
    Eip2930(TxEip2930),
    Eip1559(TxEip1559),
    Eip4844(TxEip4844),
    Eip7702(TxEip7702),
    Deposit(TxDeposit),
}
Expand description

A raw transaction.

Transaction types were introduced in EIP-2718.

Variants§

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Legacy(TxLegacy)

Legacy transaction (type 0x0).

Traditional Ethereum transactions, containing parameters nonce, gasPrice, gasLimit, to, value, data, v, r, and s.

These transactions do not utilize access lists nor do they incorporate EIP-1559 fee market changes.

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Eip2930(TxEip2930)

Transaction with an [AccessList] (EIP-2930), type 0x1.

The accessList specifies an array of addresses and storage keys that the transaction plans to access, enabling gas savings on cross-contract calls by pre-declaring the accessed contract and storage slots.

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Eip1559(TxEip1559)

A transaction with a priority fee (EIP-1559), type 0x2.

Unlike traditional transactions, EIP-1559 transactions use an in-protocol, dynamically changing base fee per gas, adjusted at each block to manage network congestion.

  • maxPriorityFeePerGas, specifying the maximum fee above the base fee the sender is willing to pay
  • maxFeePerGas, setting the maximum total fee the sender is willing to pay.

The base fee is burned, while the priority fee is paid to the miner who includes the transaction, incentivizing miners to include transactions with higher priority fees per gas.

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Eip4844(TxEip4844)

Shard Blob Transactions (EIP-4844), type 0x3.

Shard Blob Transactions introduce a new transaction type called a blob-carrying transaction to reduce gas costs. These transactions are similar to regular Ethereum transactions but include additional data called a blob.

Blobs are larger (~125 kB) and cheaper than the current calldata, providing an immutable and read-only memory for storing transaction data.

EIP-4844, also known as proto-danksharding, implements the framework and logic of danksharding, introducing new transaction formats and verification rules.

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Eip7702(TxEip7702)

EOA Set Code Transactions (EIP-7702), type 0x4.

EOA Set Code Transactions give the ability to temporarily set contract code for an EOA for a single transaction. This allows for temporarily adding smart contract functionality to the EOA.

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Deposit(TxDeposit)

Available on crate feature optimism only.

Optimism deposit transaction.

Implementations§

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impl Transaction

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pub fn signature_hash(&self) -> B256

Heavy operation that return signature hash over rlp encoded transaction. It is only for signature signing or signer recovery.

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pub fn set_chain_id(&mut self, chain_id: u64)

Sets the transaction’s chain id to the provided value.

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pub const fn kind(&self) -> TxKind

Gets the transaction’s [TxKind], which is the address of the recipient or [TxKind::Create] if the transaction is a contract creation.

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pub fn to(&self) -> Option<Address>

Get the transaction’s address of the contract that will be called, or the address that will receive the transfer.

Returns None if this is a CREATE transaction.

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pub const fn tx_type(&self) -> TxType

Get the transaction’s type

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pub const fn access_list(&self) -> Option<&AccessList>

Returns the [AccessList] of the transaction.

Returns None for legacy transactions.

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pub fn authorization_list(&self) -> Option<&[SignedAuthorization]>

Returns the [SignedAuthorization] list of the transaction.

Returns None if this transaction is not EIP-7702.

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pub const fn is_dynamic_fee(&self) -> bool

Returns true if the tx supports dynamic fees

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pub fn blob_versioned_hashes(&self) -> Option<Vec<B256>>

Blob versioned hashes for eip4844 transaction, for legacy, eip1559, eip2930 and eip7702 transactions this is None

This is also commonly referred to as the “blob versioned hashes” (BlobVersionedHashes).

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pub fn blob_gas_used(&self) -> Option<u64>

Returns the blob gas used for all blobs of the EIP-4844 transaction if it is an EIP-4844 transaction.

This is the number of blobs times the DATA_GAS_PER_BLOB a single blob consumes.

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pub fn effective_tip_per_gas(&self, base_fee: Option<u64>) -> Option<u128>

Returns the effective miner gas tip cap (gasTipCap) for the given base fee: min(maxFeePerGas - baseFee, maxPriorityFeePerGas)

If the base fee is None, the max_priority_fee_per_gas, or gas price for non-EIP1559 transactions is returned.

Returns None if the basefee is higher than the Transaction::max_fee_per_gas.

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pub const fn input(&self) -> &Bytes

Get the transaction’s input field.

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pub fn encode_for_signing(&self, out: &mut dyn BufMut)

This encodes the transaction without the signature, and is only suitable for creating a hash intended for signing.

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pub fn eip2718_encode(&self, signature: &Signature, out: &mut dyn BufMut)

Produces EIP-2718 encoding of the transaction

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pub fn set_gas_limit(&mut self, gas_limit: u64)

This sets the transaction’s gas limit.

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pub fn set_nonce(&mut self, nonce: u64)

This sets the transaction’s nonce.

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pub fn set_value(&mut self, value: U256)

This sets the transaction’s value.

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pub fn set_input(&mut self, input: Bytes)

This sets the transaction’s input field.

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pub const fn is_legacy(&self) -> bool

Returns true if the transaction is a legacy transaction.

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pub const fn is_eip2930(&self) -> bool

Returns true if the transaction is an EIP-2930 transaction.

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pub const fn is_eip1559(&self) -> bool

Returns true if the transaction is an EIP-1559 transaction.

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pub const fn is_eip4844(&self) -> bool

Returns true if the transaction is an EIP-4844 transaction.

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pub const fn is_eip7702(&self) -> bool

Returns true if the transaction is an EIP-7702 transaction.

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pub const fn as_legacy(&self) -> Option<&TxLegacy>

Returns the [TxLegacy] variant if the transaction is a legacy transaction.

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pub const fn as_eip2930(&self) -> Option<&TxEip2930>

Returns the [TxEip2930] variant if the transaction is an EIP-2930 transaction.

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pub const fn as_eip1559(&self) -> Option<&TxEip1559>

Returns the [TxEip1559] variant if the transaction is an EIP-1559 transaction.

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pub const fn as_eip4844(&self) -> Option<&TxEip4844>

Returns the [TxEip4844] variant if the transaction is an EIP-4844 transaction.

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pub const fn as_eip7702(&self) -> Option<&TxEip7702>

Returns the [TxEip7702] variant if the transaction is an EIP-7702 transaction.

Trait Implementations§

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impl<'a> Arbitrary<'a> for Transaction

Available on crate feature arbitrary only.
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fn arbitrary(u: &mut Unstructured<'a>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data. Read more
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fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data. Read more
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fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself. Read more
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fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself. Read more
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impl AsRef<Transaction> for TransactionSigned

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fn as_ref(&self) -> &Transaction

Converts this type into a shared reference of the (usually inferred) input type.
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impl AsRef<Transaction> for TransactionSignedNoHash

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fn as_ref(&self) -> &Transaction

Converts this type into a shared reference of the (usually inferred) input type.
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impl AsRef<Transaction> for TransactionSignedVariant

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fn as_ref(&self) -> &Transaction

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for Transaction

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fn clone(&self) -> Transaction

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Compact for Transaction

Available on crate feature reth-codec only.
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fn to_compact<B>(&self, buf: &mut B) -> usize
where B: BufMut + AsMut<[u8]>,

Takes a buffer which can be written to. Ideally, it returns the length written to.
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fn from_compact(buf: &[u8], identifier: usize) -> (Self, &[u8])

Takes a buffer which can be read from. Returns the object and buf with its internal cursor advanced (eg..advance(len)). Read more
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fn specialized_to_compact<B>(&self, buf: &mut B) -> usize
where B: BufMut + AsMut<[u8]>,

“Optional”: If there’s no good reason to use it, don’t.
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fn specialized_from_compact(buf: &[u8], len: usize) -> (Self, &[u8])

“Optional”: If there’s no good reason to use it, don’t.
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impl Debug for Transaction

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for Transaction

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl DepositTransaction for Transaction

Available on crate feature optimism only.
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fn source_hash(&self) -> Option<B256>

Returns the hash that uniquely identifies the source of the deposit. Read more
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fn mint(&self) -> Option<u128>

Returns the optional mint value of the deposit transaction. Read more
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fn is_system_transaction(&self) -> bool

Indicates whether the transaction is exempt from the L2 gas limit. Read more
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fn is_deposit(&self) -> bool

Checks if the transaction is a deposit transaction. Read more
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impl<'de> Deserialize<'de> for Transaction

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<'de> DeserializeAs<'de, Transaction> for Transaction<'de>

Available on crate feature serde-bincode-compat only.
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fn deserialize_as<D>(deserializer: D) -> Result<Transaction, D::Error>
where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.
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impl<'a> From<&'a Transaction> for Transaction<'a>

Available on crate feature serde-bincode-compat only.
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fn from(value: &'a Transaction) -> Self

Converts to this type from the input type.
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impl<'a> From<Transaction<'a>> for Transaction

Available on crate feature serde-bincode-compat only.
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fn from(value: Transaction<'a>) -> Self

Converts to this type from the input type.
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impl From<TxDeposit> for Transaction

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fn from(value: TxDeposit) -> Self

Converts to this type from the input type.
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impl From<TxEip1559> for Transaction

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fn from(value: TxEip1559) -> Self

Converts to this type from the input type.
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impl From<TxEip2930> for Transaction

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fn from(value: TxEip2930) -> Self

Converts to this type from the input type.
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impl From<TxEip4844> for Transaction

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fn from(value: TxEip4844) -> Self

Converts to this type from the input type.
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impl From<TxEip7702> for Transaction

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fn from(value: TxEip7702) -> Self

Converts to this type from the input type.
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impl From<TxLegacy> for Transaction

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fn from(value: TxLegacy) -> Self

Converts to this type from the input type.
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impl Hash for Transaction

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl InMemorySize for Transaction

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fn size(&self) -> usize

Calculates a heuristic for the in-memory size of the Transaction.

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impl PartialEq for Transaction

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fn eq(&self, other: &Transaction) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for Transaction

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl SerializeAs<Transaction> for Transaction<'_>

Available on crate feature serde-bincode-compat only.
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fn serialize_as<S>( source: &Transaction, serializer: S, ) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer.
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impl Transaction for Transaction

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fn chain_id(&self) -> Option<ChainId>

Get chain_id.
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fn nonce(&self) -> u64

Get nonce.
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fn gas_limit(&self) -> u64

Get gas_limit.
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fn gas_price(&self) -> Option<u128>

Get gas_price.
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fn max_fee_per_gas(&self) -> u128

Returns the EIP-1559 the maximum fee per gas the caller is willing to pay. Read more
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fn max_priority_fee_per_gas(&self) -> Option<u128>

Returns the EIP-1559 Priority fee the caller is paying to the block author. Read more
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fn max_fee_per_blob_gas(&self) -> Option<u128>

Max fee per blob gas for EIP-4844 transaction. Read more
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fn priority_fee_or_price(&self) -> u128

Return the max priority fee per gas if the transaction is an EIP-1559 transaction, and otherwise return the gas price. Read more
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fn effective_gas_price(&self, base_fee: Option<u64>) -> u128

Returns the effective gas price for the given base fee. Read more
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fn is_dynamic_fee(&self) -> bool

Returns true if the transaction supports dynamic fees.
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fn kind(&self) -> TxKind

Returns the transaction kind.
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fn value(&self) -> U256

Get value.
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fn input(&self) -> &Bytes

Get data.
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fn ty(&self) -> u8

Returns the transaction type
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fn access_list(&self) -> Option<&AccessList>

Returns the EIP-2930 access_list for the particular transaction type. Returns None for older transaction types.
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fn blob_versioned_hashes(&self) -> Option<&[B256]>

Blob versioned hashes for eip4844 transaction. For previous transaction types this is None.
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fn authorization_list(&self) -> Option<&[SignedAuthorization]>

Returns the [SignedAuthorization] list of the transaction. Read more
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fn effective_tip_per_gas(&self, base_fee: u64) -> Option<u128>

Returns the effective tip for this transaction. Read more
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fn to(&self) -> Option<Address>

Get the transaction’s address of the contract that will be called, or the address that will receive the transfer. Read more
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impl Eq for Transaction

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impl StructuralPartialEq for Transaction

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<A> ArbInterop for A
where A: for<'a> Arbitrary<'a> + 'static + Debug + Clone,

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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> FullTransaction for T
where T: Transaction + MaybeCompact,

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impl<T> MaybeArbitrary for T
where T: for<'a> Arbitrary<'a>,

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impl<T> MaybeCompact for T
where T: Compact,

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impl<T> MaybeSerde for T
where T: Serialize + for<'de> Deserialize<'de>,

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impl<T> RpcObject for T
where T: RpcParam + RpcReturn,

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impl<T> RpcParam for T
where T: Serialize + Clone + Debug + Send + Sync + Unpin,

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impl<T> RpcReturn for T
where T: DeserializeOwned + Debug + Send + Sync + Unpin + 'static,

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impl<T> Transaction for T
where T: Send + Sync + Unpin + Clone + Default + Debug + Eq + PartialEq + Hash + Transaction + InMemorySize + MaybeSerde + MaybeArbitrary,

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 224 bytes

Size for each variant:

  • Legacy: 144 bytes
  • Eip2930: 160 bytes
  • Eip1559: 176 bytes
  • Eip4844: 208 bytes
  • Eip7702: 192 bytes
  • Deposit: 192 bytes