Struct Memo

#[repr(transparent)]
pub struct Memo(pub [u8; 128]);

Transfer memo data, included with balance transfers between services.

Tuple Fields

0: [u8; 128]

Implementations

impl Memo

pub const LEN: usize = 128usize

The length of this data.

pub fn zero() -> Self

Create a new instance filled with zeroes.

pub fn padded(left: &[u8]) -> Self

Create a new instance from a slice.

The instance will be equal to the left portion of left, suffixed with zeroes in case left is too short.

pub const fn len() -> usize

Return the length of this data in bytes.

pub fn to_vec(&self) -> Vec<u8>

Return a [$crate::Vec] with the same data as this.

Trait Implementations

impl AsMut<[u8]> for Memo

fn as_mut(&mut self) -> &mut [u8]

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsMut<[u8; 128]> for Memo

fn as_mut(&mut self) -> &mut [u8; 128]

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<[u8; 128]> for Memo

fn as_ref(&self) -> &[u8; 128]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Memo

fn clone(&self) -> Memo

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Memo

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

Formats the value using the given formatter.

impl Decode for Memo

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, dst_: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Default for Memo

fn default() -> Self

Returns the “default value” for a type.

impl Deref for Memo

type Target = [u8; 128]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for Memo

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl Display for Memo

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

Formats the value using the given formatter.

impl Encode for Memo

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<__CodecOutputReturn, __CodecUsingEncodedCallback: FnOnce(&[u8]) -> __CodecOutputReturn>( &self, f: __CodecUsingEncodedCallback, ) -> __CodecOutputReturn

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl From<[u8; 128]> for Memo

fn from(value: [u8; 128]) -> Self

Converts to this type from the input type.

impl From<Memo> for [u8; 128]

fn from(value: Memo) -> [u8; 128]

Converts to this type from the input type.

impl Hash for Memo

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 MaxEncodedLen for Memo

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl Ord for Memo

fn cmp(&self, other: &Memo) -> 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 for Memo

fn eq(&self, other: &Memo) -> 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 Memo

fn partial_cmp(&self, other: &Memo) -> 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 ConstEncodedLen for Memo

impl Copy for Memo

impl EncodeLike for Memo

impl Eq for Memo

impl StructuralPartialEq for Memo