Struct Round

pub struct Round(pub u32);

Consensus round index.

Tuple Fields

0: u32

Implementations

impl Round

pub fn zero() -> Self

Returns zero value of the round.

Examples

use exonum::helpers::Round;

let round = Round::zero();
assert_eq!(0, round.0);

pub fn first() -> Self

Returns first value of the round.

Examples

use exonum::helpers::Round;

let round = Round::first();
assert_eq!(1, round.0);

pub fn next(self) -> Self

Returns next value of the round.

Examples

use exonum::helpers::Round;

let round = Round(20);
let next_round = round.next();
assert_eq!(21, next_round.0);

pub fn previous(self) -> Self

Returns previous value of the round.

Panics

Panics if self.0 is equal to zero.

Examples

use exonum::helpers::Round;

let round = Round(10);
let previous_round = round.previous();
assert_eq!(9, previous_round.0);

pub fn increment(&mut self)

Increments the round value.

Examples

use exonum::helpers::Round;

let mut round = Round::zero();
round.increment();
assert_eq!(1, round.0);

pub fn decrement(&mut self)

Decrements the round value.

Panics

Panics if self.0 is equal to zero.

Examples

use exonum::helpers::Round;

let mut round = Round(20);
round.decrement();
assert_eq!(19, round.0);

pub fn iter_to(self, to: Self) -> impl Iterator<Item = Self>

Returns the iterator over rounds in the range from self to to - 1.

Examples

use exonum::helpers::Round;

let round = Round::zero();
let mut iter = round.iter_to(Round(2));
assert_eq!(Some(Round(0)), iter.next());
assert_eq!(Some(Round(1)), iter.next());
assert_eq!(None, iter.next());

Trait Implementations

impl BinaryValue for Round

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

Serializes the given value to the vector of bytes.

fn from_bytes(value: Cow<'_, [u8]>) -> Result<Self>

Deserializes the value from the given bytes array.

fn into_bytes(self) -> Vec<u8>

Consumes and serializes the given value to the vector of bytes. This method is faster with the wrapped values, thus if you wouldn’t use value after serialization use it.

impl Clone for Round

fn clone(&self) -> Round

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Round

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Round

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Round

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

Formats the value using the given formatter.

impl From<Round> for u32

fn from(val: Round) -> Self

Converts to this type from the input type.

impl From<Round> for u64

fn from(val: Round) -> Self

Converts to this type from the input type.

impl Hash for Round

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 ObjectHash for Round

fn object_hash(&self) -> Hash

Returns a hash of the value.

impl Ord for Round

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

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

fn partial_cmp(&self, other: &Round) -> 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 ProtobufConvert for Round

type ProtoStruct = u32

Type generated from the Protobuf definition.

fn to_pb(&self) -> Self::ProtoStruct

Performs conversion to the type generated from Protobuf.

fn from_pb(pb: Self::ProtoStruct) -> Result<Self, Error>

Performs conversion from the type generated from Protobuf.

impl Serialize for Round

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Round

impl Eq for Round

impl StructuralPartialEq for Round