Cuprate/cuprate
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Merge branch 'hf' into json

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hinto.janai 2024-10-11 17:42:10 -04:00
commit e57c887d15
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1 changed files with 14 additions and 26 deletions
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40
types/src/hard_fork.rs
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@ -73,13 +73,13 @@ pub enum HardFork {
} }
impl HardFork { impl HardFork {
/// The current [`HardFork`]. /// The latest [`HardFork`].
/// ///
/// ```rust /// ```rust
/// # use cuprate_types::HardFork; /// # use cuprate_types::HardFork;
/// assert_eq!(HardFork::CURRENT, HardFork::V16); /// assert_eq!(HardFork::LATEST, HardFork::V16);
/// ``` /// ```
pub const CURRENT: Self = Self::VARIANTS[Self::COUNT - 1]; pub const LATEST: Self = Self::VARIANTS[Self::COUNT - 1];
/// Returns the hard-fork for a blocks [`BlockHeader::hardfork_version`] field. /// Returns the hard-fork for a blocks [`BlockHeader::hardfork_version`] field.
/// ///
@ -101,21 +101,9 @@ impl HardFork {
/// ``` /// ```
#[inline] #[inline]
pub const fn from_version(version: u8) -> Result<Self, HardForkError> { pub const fn from_version(version: u8) -> Result<Self, HardForkError> {
#[expect( match Self::from_repr(version) {
clippy::cast_possible_truncation, Some(this) => Ok(this),
reason = "we check that `HardFork::COUNT` fits into a `u8`." None => Err(HardForkError::HardForkUnknown),
)]
const COUNT_AS_U8: u8 = {
const COUNT: usize = HardFork::COUNT;
assert!(COUNT <= u8::MAX as usize);
COUNT as u8
};
if version == 0 || version > COUNT_AS_U8 {
Err(HardForkError::HardForkUnknown)
} else {
// INVARIANT: we've proved above that `version` is in a valid range.
Ok(Self::VARIANTS[(version - 1) as usize])
} }
} }
@ -128,7 +116,7 @@ impl HardFork {
/// # use strum::VariantArray; /// # use strum::VariantArray;
/// // 0 is interpreted as 1. /// // 0 is interpreted as 1.
/// assert_eq!(HardFork::from_vote(0), HardFork::V1); /// assert_eq!(HardFork::from_vote(0), HardFork::V1);
/// // Unknown defaults to `CURRENT`. /// // Unknown defaults to `LATEST`.
/// assert_eq!(HardFork::from_vote(17), HardFork::V16); /// assert_eq!(HardFork::from_vote(17), HardFork::V16);
/// ///
/// for (vote, hf) in HardFork::VARIANTS.iter().enumerate() { /// for (vote, hf) in HardFork::VARIANTS.iter().enumerate() {
@ -143,7 +131,7 @@ impl HardFork {
Self::V1 Self::V1
} else { } else {
// This must default to the latest hard-fork! // This must default to the latest hard-fork!
Self::from_version(vote).unwrap_or(Self::CURRENT) Self::from_version(vote).unwrap_or(Self::LATEST)
} }
} }
@ -188,21 +176,21 @@ impl HardFork {
} }
} }
/// Returns `true` if `self` is [`Self::CURRENT`]. /// Returns `true` if `self` is [`Self::LATEST`].
/// ///
/// ```rust /// ```rust
/// # use cuprate_types::HardFork; /// # use cuprate_types::HardFork;
/// # use strum::VariantArray; /// # use strum::VariantArray;
/// ///
/// for hf in HardFork::VARIANTS.iter() { /// for hf in HardFork::VARIANTS.iter() {
/// if *hf == HardFork::CURRENT { /// if *hf == HardFork::LATEST {
/// assert!(hf.is_current()); /// assert!(hf.is_latest());
/// } else { /// } else {
/// assert!(!hf.is_current()); /// assert!(!hf.is_latest());
/// } /// }
/// } /// }
/// ``` /// ```
pub const fn is_current(self) -> bool { pub const fn is_latest(self) -> bool {
matches!(self, Self::CURRENT) matches!(self, Self::LATEST)
} }
} }