Enum Parity

pub enum Parity {
    Eip155(u64),
    NonEip155(bool),
    Parity(bool),
}

The parity of the signature, stored as either a V value (which may include a chain id), or the y-parity.

Variants

Eip155(u64)

Explicit V value. May be EIP-155 modified.

NonEip155(bool)

Non-EIP155. 27 or 28.

Parity(bool)

Parity flag. True for odd.

Implementations

impl Parity

pub const fn chain_id(&self) -> Option<u64>

Returns the chain ID associated with the V value, if this signature is replay-protected by EIP-155.

pub const fn has_eip155_value(&self) -> bool

Returns true if the signature is replay-protected by EIP-155.

This is true if the V value is 35 or greater. Values less than 35 are either not replay protected (27/28), or are invalid.

pub const fn y_parity(&self) -> bool

Return the y-parity as a boolean.

pub const fn y_parity_byte(&self) -> u8

Return the y-parity as 0 or 1

pub const fn y_parity_byte_non_eip155(&self) -> Option<u8>

Return the y-parity byte as 27 or 28, in the case of a non-EIP155 signature.

pub const fn to_u64(&self) -> u64

Return the corresponding u64 V value.

pub const fn inverted(&self) -> Parity

Inverts the parity.

pub const fn strip_chain_id(&self) -> Parity

Converts an EIP-155 V value to a non-EIP-155 V value.

This is a nop for non-EIP-155 values.

pub const fn with_chain_id(self, chain_id: u64) -> Parity

Applies EIP-155 with the given chain ID.

pub const fn recid(&self) -> RecoveryId

Determines the recovery ID.

pub const fn to_parity_bool(self) -> Parity

Convert to a parity bool, dropping any V information.

Trait Implementations

impl Clone for Parity

fn clone(&self) -> Parity

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Parity

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

Formats the value using the given formatter.

impl Decodable for Parity

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

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

impl Default for Parity

fn default() -> Parity

Returns the “default value” for a type.

impl Encodable for Parity

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 From<RecoveryId> for Parity

fn from(value: RecoveryId) -> Parity

Converts to this type from the input type.

impl From<Uint<1, 1>> for Parity

fn from(value: Uint<1, 1>) -> Parity

Converts to this type from the input type.

impl From<bool> for Parity

fn from(value: bool) -> Parity

Converts to this type from the input type.

impl Hash for Parity

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 PartialEq for Parity

fn eq(&self, other: &Parity) -> 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 TryFrom<Uint<64, 1>> for Parity

type Error = <Parity as TryFrom<u64>>::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<u64> for Parity

type Error = SignatureError

The type returned in the event of a conversion error.

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

Performs the conversion.

impl Copy for Parity

impl Eq for Parity

impl StructuralPartialEq for Parity