Enum TxType

#[repr(u8)]
pub enum TxType {
    Legacy = 0,
    Eip2930 = 1,
    Eip1559 = 2,
    Eip4844 = 3,
    Eip7702 = 4,
}

Transaction Type

Currently being used as 2-bit type when encoding it to reth_codecs::Compact on crate::TransactionSigned. Adding more transaction types will break the codec and database format.

Other required changes when adding a new type can be seen on PR#3953. The TxEnvelope enum represents all Ethereum transaction envelope types, /// Its variants correspond to specific allowed transactions:

1. Legacy (pre-EIP2718) [TxLegacy]
2. EIP2930 (state access lists) [TxEip2930]
3. EIP1559 [TxEip1559]
4. EIP4844 [TxEip4844Variant]

This type is generic over Eip4844 variant to support the following cases:

1. Only-[crate::TxEip4844] transaction type, such transaction representation is returned by RPC and stored by nodes internally.
2. Only-[crate::TxEip4844WithSidecar] transactions which are broadcasted over the network, submitted to RPC and stored in transaction pool.
3. Dynamic [TxEip4844Variant] transactions to support both of the above cases via a single type.

Ethereum TransactionType flags as specified in EIPs 2718, 1559, 2930, 4844, and 7702.

Variants

Legacy = 0

Legacy transaction type.

Eip2930 = 1

EIP-2930 transaction type.

Eip1559 = 2

EIP-1559 transaction type.

Eip4844 = 3

EIP-4844 transaction type.

Eip7702 = 4

EIP-7702 transaction type.

Trait Implementations

impl Arbitrary<'_> for TxType

Available on crate feature arbitrary only.

fn arbitrary(u: &mut Unstructured<'_>) -> Result<TxType, Error>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

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.

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.

impl Clone for TxType

fn clone(&self) -> TxType

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Compact for TxType

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.

fn from_compact(buf: &[u8], identifier: usize) -> (TxType, &[u8])

Takes a buffer which can be read from. Returns the object and buf with its internal cursor advanced (eg..advance(len)).

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.

fn specialized_from_compact(buf: &[u8], len: usize) -> (Self, &[u8])

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

impl Debug for TxType

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

Formats the value using the given formatter.

impl Decodable for TxType

fn decode(buf: &mut &[u8]) -> Result<TxType, Error>

Decodes the blob into the appropriate type. buf must be advanced past the decoded object.

impl Default for TxType

fn default() -> TxType

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TxType

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TxType

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

Formats the value using the given formatter.

impl Encodable for TxType

fn encode(&self, out: &mut dyn BufMut)

Encodes the type into the out buffer.

fn length(&self) -> usize

Returns the length of the encoding of this type in bytes.

impl Hash for TxType

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

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl InMemorySize for TxType

fn size(&self) -> usize

Returns a heuristic for the in-memory size of a struct.

impl Ord for TxType

fn cmp(&self, other: &TxType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq<u8> for TxType

fn eq(&self, other: &u8) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl PartialEq for TxType

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl PartialOrd for TxType

fn partial_cmp(&self, other: &TxType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for TxType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<AnyTxType> for TxType

type Error = Eip2718Error

The type returned in the event of a conversion error.

fn try_from( value: AnyTxType, ) -> Result<TxType, <TxType as TryFrom<AnyTxType>>::Error>

Performs the conversion.

impl TryFrom<Uint<64, 1>> for TxType

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from( value: Uint<64, 1>, ) -> Result<TxType, <TxType as TryFrom<Uint<64, 1>>>::Error>

Performs the conversion.

impl TryFrom<u64> for TxType

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: u64) -> Result<TxType, <TxType as TryFrom<u64>>::Error>

Performs the conversion.

impl TryFrom<u8> for TxType

type Error = Eip2718Error

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<TxType, <TxType as TryFrom<u8>>::Error>

Performs the conversion.

impl Typed2718 for TxType

fn ty(&self) -> u8

Returns the EIP-2718 type flag.

fn is_type(&self, ty: u8) -> bool

Returns true if the type matches the given type.

fn is_legacy(&self) -> bool

Returns true if the type is a legacy transaction.

fn is_eip2930(&self) -> bool

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

fn is_eip1559(&self) -> bool

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

fn is_eip4844(&self) -> bool

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

fn is_eip7702(&self) -> bool

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

impl Copy for TxType

impl Eq for TxType

impl StructuralPartialEq for TxType

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: 1 byte

Size for each variant:

• Legacy: 0 bytes
• Eip2930: 0 bytes
• Eip1559: 0 bytes
• Eip4844: 0 bytes
• Eip7702: 0 bytes