brk_structs 0.0.111

Structs used throughout BRK
Documentation 
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use std::{
    cmp::Ordering,
    ops::{Add, AddAssign, Div},
};

use allocative::Allocative;
use serde::Serialize;
use vecdb::StoredCompressed;
use zerocopy_derive::{FromBytes, Immutable, IntoBytes, KnownLayout};

use super::{Sats, StoredU64};

#[derive(
    Debug,
    Clone,
    Copy,
    Serialize,
    FromBytes,
    Immutable,
    IntoBytes,
    KnownLayout,
    StoredCompressed,
    Allocative,
)]
pub struct FeeRate(f64);

impl From<(Sats, StoredU64)> for FeeRate {
    fn from((sats, vsize): (Sats, StoredU64)) -> Self {
        let sats = u64::from(sats);
        let vsize = u64::from(vsize);
        Self(((sats * 1000 + vsize.checked_sub(1).unwrap()) / vsize) as f64 / 1000.0)
    }
}

impl From<f64> for FeeRate {
    fn from(value: f64) -> Self {
        Self(value)
    }
}
impl From<FeeRate> for f64 {
    fn from(value: FeeRate) -> Self {
        value.0
    }
}

impl Add for FeeRate {
    type Output = Self;
    fn add(self, rhs: Self) -> Self::Output {
        Self(self.0 + rhs.0)
    }
}

impl AddAssign for FeeRate {
    fn add_assign(&mut self, rhs: Self) {
        *self = *self + rhs
    }
}

impl Div<usize> for FeeRate {
    type Output = Self;
    fn div(self, rhs: usize) -> Self::Output {
        Self(self.0 / rhs as f64)
    }
}

impl From<usize> for FeeRate {
    fn from(value: usize) -> Self {
        Self(value as f64)
    }
}

impl PartialEq for FeeRate {
    fn eq(&self, other: &Self) -> bool {
        match (self.0.is_nan(), other.0.is_nan()) {
            (true, true) => true,
            (true, false) => false,
            (false, true) => false,
            (false, false) => self.0 == other.0,
        }
    }
}

impl Eq for FeeRate {}

#[allow(clippy::derive_ord_xor_partial_ord)]
impl PartialOrd for FeeRate {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}

#[allow(clippy::derive_ord_xor_partial_ord)]
impl Ord for FeeRate {
    fn cmp(&self, other: &Self) -> Ordering {
        match (self.0.is_nan(), other.0.is_nan()) {
            (true, true) => Ordering::Equal,
            (true, false) => Ordering::Less,
            (false, true) => Ordering::Greater,
            (false, false) => self.0.partial_cmp(&other.0).unwrap(),
        }
    }
}

impl std::fmt::Display for FeeRate {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let mut buf = ryu::Buffer::new();
        let str = buf.format(self.0);
        f.write_str(str)
    }
}