Enum HardFork

#[repr(u8)]
pub enum HardFork {
    V1 = 1,
    V2 = 2,
    V3 = 3,
    V4 = 4,
    V5 = 5,
    V6 = 6,
    V7 = 7,
    V8 = 8,
    V9 = 9,
    V10 = 10,
    V11 = 11,
    V12 = 12,
    V13 = 13,
    V14 = 14,
    V15 = 15,
    V16 = 16,
}

An identifier for every hard-fork Monero has had.

Variants

V1 = 1

V2 = 2

V3 = 3

V4 = 4

V5 = 5

V6 = 6

V7 = 7

V8 = 8

V9 = 9

V10 = 10

V11 = 11

V12 = 12

V13 = 13

V14 = 14

V15 = 15

V16 = 16

Implementations

impl HardFork

pub const fn is_v_1(&self) -> bool

Returns true if the enum is HardFork::V1 otherwise false

pub const fn is_v_2(&self) -> bool

Returns true if the enum is HardFork::V2 otherwise false

pub const fn is_v_3(&self) -> bool

Returns true if the enum is HardFork::V3 otherwise false

pub const fn is_v_4(&self) -> bool

Returns true if the enum is HardFork::V4 otherwise false

pub const fn is_v_5(&self) -> bool

Returns true if the enum is HardFork::V5 otherwise false

pub const fn is_v_6(&self) -> bool

Returns true if the enum is HardFork::V6 otherwise false

pub const fn is_v_7(&self) -> bool

Returns true if the enum is HardFork::V7 otherwise false

pub const fn is_v_8(&self) -> bool

Returns true if the enum is HardFork::V8 otherwise false

pub const fn is_v_9(&self) -> bool

Returns true if the enum is HardFork::V9 otherwise false

pub const fn is_v_10(&self) -> bool

Returns true if the enum is HardFork::V10 otherwise false

pub const fn is_v_11(&self) -> bool

Returns true if the enum is HardFork::V11 otherwise false

pub const fn is_v_12(&self) -> bool

Returns true if the enum is HardFork::V12 otherwise false

pub const fn is_v_13(&self) -> bool

Returns true if the enum is HardFork::V13 otherwise false

pub const fn is_v_14(&self) -> bool

Returns true if the enum is HardFork::V14 otherwise false

pub const fn is_v_15(&self) -> bool

Returns true if the enum is HardFork::V15 otherwise false

pub const fn is_v_16(&self) -> bool

Returns true if the enum is HardFork::V16 otherwise false

impl HardFork

pub const fn from_repr(discriminant: u8) -> Option<HardFork>

Try to create Self from the raw representation

impl HardFork

pub const LATEST: HardFork = _

The latest HardFork.

assert_eq!(HardFork::LATEST, HardFork::V16);

pub const fn from_version(version: u8) -> Result<HardFork, HardForkError>

Returns the hard-fork for a blocks BlockHeader::hardfork_version field.

ref: https://monero-book.cuprate.org/consensus_rules/hardforks.html#blocks-version-and-vote

Errors

Will return Err if the version is not a valid HardFork.

assert_eq!(HardFork::from_version(0), Err(HardForkError::HardForkUnknown));
assert_eq!(HardFork::from_version(17), Err(HardForkError::HardForkUnknown));

for (version, hf) in HardFork::VARIANTS.iter().enumerate() {
    // +1 because enumerate starts at 0, hf starts at 1.
    assert_eq!(*hf, HardFork::from_version(version as u8 + 1).unwrap());
}

pub fn from_vote(vote: u8) -> HardFork

Returns the hard-fork for a blocks BlockHeader::hardfork_signal (vote) field.

https://monero-book.cuprate.org/consensus_rules/hardforks.html#blocks-version-and-vote

// 0 is interpreted as 1.
assert_eq!(HardFork::from_vote(0), HardFork::V1);
// Unknown defaults to `LATEST`.
assert_eq!(HardFork::from_vote(17), HardFork::V16);

for (vote, hf) in HardFork::VARIANTS.iter().enumerate() {
    // +1 because enumerate starts at 0, hf starts at 1.
    assert_eq!(*hf, HardFork::from_vote(vote as u8 + 1));
}

pub fn from_block_header( header: &BlockHeader, ) -> Result<(HardFork, HardFork), HardForkError>

Returns the HardFork version and vote from this block header.

Errors

Will return Err if the BlockHeader::hardfork_version is not a valid HardFork.

pub const fn as_u8(self) -> u8

Returns the raw hard-fork value, as it would appear in BlockHeader::hardfork_version.

for (i, hf) in HardFork::VARIANTS.iter().enumerate() {
    // +1 because enumerate starts at 0, hf starts at 1.
    assert_eq!(hf.as_u8(), i as u8 + 1);
}

pub fn next_fork(self) -> Option<HardFork>

Returns the next hard-fork.

pub const fn block_time(self) -> Duration

Returns the target block time for this hardfork.

ref: https://monero-book.cuprate.org/consensus_rules/blocks/difficulty.html#target-seconds

pub const fn is_latest(self) -> bool

Returns true if self is Self::LATEST.

for hf in HardFork::VARIANTS.iter() {
    if *hf == HardFork::LATEST {
        assert!(hf.is_latest());
    } else {
        assert!(!hf.is_latest());
    }
}

Trait Implementations

impl Arbitrary for HardFork

type Parameters = ()

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = TupleUnion<((u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<TupleUnion<((u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>), (u32, Arc<fn() -> HardFork>))>>))>

The type of Strategy used to generate values of type Self.

fn arbitrary_with( _top: <HardFork as Arbitrary>::Parameters, ) -> <HardFork as Arbitrary>::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl AsRef<str> for HardFork

fn as_ref(&self) -> &str

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

impl Clone for HardFork

fn clone(&self) -> HardFork

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HardFork

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

Formats the value using the given formatter.

impl Default for HardFork

fn default() -> HardFork

Returns the “default value” for a type.

impl Display for HardFork

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

Formats the value using the given formatter.

impl EnumCount for HardFork

const COUNT: usize = 16usize

impl<'_derivative_strum> From<&'_derivative_strum HardFork> for &'static str

fn from(x: &'_derivative_strum HardFork) -> &'static str

Converts to this type from the input type.

impl From<HardFork> for &'static str

fn from(x: HardFork) -> &'static str

Converts to this type from the input type.

impl FromStr for HardFork

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<HardFork, <HardFork as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for HardFork

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 Ord for HardFork

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

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

fn partial_cmp(&self, other: &HardFork) -> 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 TryFrom<&str> for HardFork

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(s: &str) -> Result<HardFork, <HardFork as TryFrom<&str>>::Error>

Performs the conversion.

impl VariantArray for HardFork

const VARIANTS: &'static [HardFork] = _

impl Copy for HardFork

impl Eq for HardFork

impl StructuralPartialEq for HardFork

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• V1: 0 bytes
• V2: 0 bytes
• V3: 0 bytes
• V4: 0 bytes
• V5: 0 bytes
• V6: 0 bytes
• V7: 0 bytes
• V8: 0 bytes
• V9: 0 bytes
• V10: 0 bytes
• V11: 0 bytes
• V12: 0 bytes
• V13: 0 bytes
• V14: 0 bytes
• V15: 0 bytes
• V16: 0 bytes