Struct Wei 

pub struct Wei(/* private fields */);

Wei amount encoded as an unsigned 256-bit big-endian integer.

Implementations

impl Wei

pub fn encoded_rlp_len(self) -> Result<usize, PrimitiveRlpError>

Returns the canonical RLP encoded length.

pub fn encode_rlp(self, output: &mut [u8]) -> Result<usize, PrimitiveRlpError>

Canonically encodes this value into output.

Returns the number of bytes written. output is not modified unless this function returns Ok.

pub fn try_from_rlp( input: &[u8], limits: DecodeLimits, ) -> Result<Self, PrimitiveRlpError>

Decodes exactly one canonical RLP U256 integer into Wei.

impl Wei

pub const ZERO: Self

Zero wei.

pub const fn from_be_bytes(bytes: [u8; 32]) -> Self

Creates a wei amount from unsigned 256-bit big-endian bytes.

pub const fn from_u128(value: u128) -> Self

Creates a wei amount from a u128.

pub const fn to_be_bytes(self) -> [u8; 32]

Returns unsigned 256-bit big-endian bytes.

pub fn try_from_canonical_be_slice(bytes: &[u8]) -> Result<Self, PrimitiveError>

Creates a wei amount from a canonical RLP integer payload.

The empty payload represents zero. Non-empty payloads must be shortest-form unsigned big-endian bytes without a leading zero.

pub fn ct_eq(&self, other: &Self) -> Choice

Compares two wei values in constant time.

Wei is usually public, but fixed-width constant-time equality keeps proof and verification paths from accidentally choosing a weaker API.

Trait Implementations

impl Clone for Wei

fn clone(&self) -> Wei

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Wei

impl Debug for Wei

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

Formats the value using the given formatter.

impl Eq for Wei

impl From<Wei> for [u8; 32]

fn from(value: Wei) -> Self

Converts to this type from the input type.

impl From<[u8; 32]> for Wei

fn from(bytes: [u8; 32]) -> Self

Converts to this type from the input type.

impl Hash for Wei

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

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 Wei

fn eq(&self, other: &Self) -> 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 RlpDecode for Wei

type Error = PrimitiveRlpError

Error returned by this decoder.

fn decode_rlp(input: &[u8], limits: DecodeLimits) -> Result<Self, Self::Error>

Decodes exactly one canonical RLP item from input.

fn decode_rlp_item(item: RlpItem<'_>) -> Result<Self, Self::Error>

Decodes one already-bounded child item from an outer RLP list.

impl RlpEncode for Wei

type Error = PrimitiveRlpError

Error returned by this encoder.

fn encoded_rlp_len(&self) -> Result<usize, Self::Error>

Returns the exact canonical RLP encoded length.

fn encode_rlp(&self, output: &mut [u8]) -> Result<usize, Self::Error>

Canonically encodes self into output.