Struct BlockNumber 

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

Block number

Implementations

impl BlockNumber

pub const SIZE: usize

Size in bytes

pub const ZERO: BlockNumber

Genesis block number

pub const ONE: BlockNumber

First block number

pub const MAX: BlockNumber

Max block number

pub const fn from_bytes(bytes: [u8; 8]) -> Self

Create block number from bytes

pub const fn to_bytes(self) -> [u8; 8]

Convert block number to bytes

pub const fn checked_add(self, rhs: Self) -> Option<Self>

Checked addition, returns None on overflow

pub const fn saturating_add(self, rhs: Self) -> Self

Saturating addition

pub const fn checked_sub(self, rhs: Self) -> Option<Self>

Checked subtraction, returns None on underflow

pub const fn saturating_sub(self, rhs: Self) -> Self

Saturating subtraction

Trait Implementations

impl Add for BlockNumber

type Output = BlockNumber

The resulting type after applying the + operator.

fn add(self, __rhs: Self) -> Self::Output

Performs the + operation.

impl AddAssign for BlockNumber

fn add_assign(&mut self, __rhs: Self)

Performs the += operation.

impl AnyBitPatternMarker for BlockNumber

where for<'__ab_io_type> u64: AnyBitPatternMarker,

impl Clone for BlockNumber

fn clone(&self) -> BlockNumber

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BlockNumber

impl Debug for BlockNumber

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

Formats the value using the given formatter.

impl Decode for BlockNumber

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

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

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 BlockNumber

fn default() -> BlockNumber

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BlockNumber

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for BlockNumber

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

Formats the value using the given formatter.

impl Encode for BlockNumber

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 EncodeLike for BlockNumber

impl Eq for BlockNumber

impl From<BlockNumber> for u64

fn from(value: BlockNumber) -> Self

Converts to this type from the input type.

impl From<u64> for BlockNumber

fn from(value: u64) -> Self

Converts to this type from the input type.

impl Hash for BlockNumber

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 BlockNumber

fn max_encoded_len() -> usize

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

impl Ord for BlockNumber

fn cmp(&self, other: &BlockNumber) -> 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 BlockNumber

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for BlockNumber

fn partial_cmp(&self, other: &BlockNumber) -> 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 BlockNumber

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Step for BlockNumber

fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>)

🔬This is a nightly-only experimental API. (step_trait)

Returns the bounds on the number of successor steps required to get from start to end like Iterator::size_hint().

fn forward_checked(start: Self, count: usize) -> Option<Self>

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the successor of self count times.

fn forward_overflowing(start: Self, count: usize) -> (Self, bool)

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the successor of self count times along with a boolean tracking whether overflow occurred.

fn backward_checked(start: Self, count: usize) -> Option<Self>

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the predecessor of self count times.

fn backward_overflowing(start: Self, count: usize) -> (Self, bool)

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the successor of self count times along with a boolean tracking whether overflow occurred.

fn forward(start: Self, count: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the successor of self count times.

unsafe fn forward_unchecked(start: Self, count: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the successor of self count times.

fn backward(start: Self, count: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the predecessor of self count times.

unsafe fn backward_unchecked(start: Self, count: usize) -> Self

🔬This is a nightly-only experimental API. (step_trait)

Returns the value that would be obtained by taking the predecessor of self count times.

impl StructuralPartialEq for BlockNumber

impl Sub for BlockNumber

type Output = BlockNumber

The resulting type after applying the - operator.

fn sub(self, __rhs: Self) -> Self::Output

Performs the - operation.

impl SubAssign for BlockNumber

fn sub_assign(&mut self, __rhs: Self)

Performs the -= operation.

impl TrivialType for BlockNumber

where u64: TrivialType,

const ALIGNMENT: Alignment

Alignment of the type in metadata.

const METADATA: &[u8]

Data structure metadata in binary form, describing shape and types of the contents, see IoTypeMetadataKind for encoding details.

fn try_from_bytes_unaligned(bytes: &[u8]) -> Option<(&Unaligned<Self>, &[u8])>

Parse the beginning of bytes, which don’t need to be aligned.

const SIZE: u32 = _

final fn try_from_bytes(bytes: &[u8]) -> Option<(&Self, &[u8])>

Parse the beginning of aligned bytes, returns the value and the remaining bytes.

final fn try_from_bytes_exact(bytes: &[u8]) -> Option<&Self>

Like Self::try_from_bytes(), but returns None if there are more bytes than the value

final fn try_from_bytes_mut(bytes: &mut [u8]) -> Option<(&mut Self, &mut [u8])>

Like Self::try_from_bytes(), but returns an exclusive reference.

final fn try_read_unaligned(bytes: &[u8]) -> Option<(Self, &[u8])>

Read a copy from the beginning of bytes, which don’t need to be aligned, returns the value and the remaining bytes

final fn try_read_unaligned_exact(bytes: &[u8]) -> Option<Self>

Like Self::try_read_unaligned(), but returns None if there are more bytes than the value

final unsafe fn read_unaligned(bytes: &[u8]) -> Option<Self>

Read unaligned value from memory.

final unsafe fn read_unaligned_unchecked(bytes: &[u8]) -> Self

Similar to Self::read_unaligned(), but doesn’t do any checks at all.

final unsafe fn from_bytes(bytes: &[u8]) -> Option<&Self>

Create a reference to a type, which is represented by provided memory.

final unsafe fn from_bytes_unchecked(bytes: &[u8]) -> &Self

Similar to Self::from_bytes(), but doesn’t do any checks at all.

final unsafe fn from_bytes_mut(bytes: &mut [u8]) -> Option<&mut Self>

Create a mutable reference to a type, which is represented by provided memory.

final unsafe fn from_bytes_mut_unchecked(bytes: &mut [u8]) -> &mut Self

Similar to Self::from_bytes_mut(), but doesn’t do any checks at all.

final fn as_bytes(&self) -> &[u8; ab_io_type::trivial_type::SIZE_OF::<Self>]

Access the underlying byte representation of a data structure

final unsafe fn as_bytes_mut( &mut self, ) -> &mut [u8; ab_io_type::trivial_type::SIZE_OF::<Self>]

Access the underlying mutable byte representation of a data structure.