| use crate::stable_hasher::{HashStable, StableHasher}; |
| use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; |
| use std::cmp::Ordering; |
| use std::fmt; |
| |
| /// A packed 128-bit integer. Useful for reducing the size of structures in |
| /// some cases. |
| #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)] |
| #[repr(packed(8))] |
| pub struct Pu128(pub u128); |
| |
| impl Pu128 { |
| #[inline] |
| pub fn get(self) -> u128 { |
| self.0 |
| } |
| } |
| |
| impl From<u128> for Pu128 { |
| #[inline] |
| fn from(value: u128) -> Self { |
| Self(value) |
| } |
| } |
| |
| impl PartialEq<u128> for Pu128 { |
| #[inline] |
| fn eq(&self, other: &u128) -> bool { |
| ({ self.0 }) == *other |
| } |
| } |
| |
| impl PartialOrd<u128> for Pu128 { |
| #[inline] |
| fn partial_cmp(&self, other: &u128) -> Option<Ordering> { |
| { self.0 }.partial_cmp(other) |
| } |
| } |
| |
| impl fmt::Display for Pu128 { |
| #[inline] |
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| { self.0 }.fmt(f) |
| } |
| } |
| |
| impl fmt::UpperHex for Pu128 { |
| #[inline] |
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| { self.0 }.fmt(f) |
| } |
| } |
| |
| impl<CTX> HashStable<CTX> for Pu128 { |
| #[inline] |
| fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher) { |
| { self.0 }.hash_stable(ctx, hasher) |
| } |
| } |
| |
| impl<S: Encoder> Encodable<S> for Pu128 { |
| #[inline] |
| fn encode(&self, s: &mut S) { |
| { self.0 }.encode(s); |
| } |
| } |
| |
| impl<D: Decoder> Decodable<D> for Pu128 { |
| #[inline] |
| fn decode(d: &mut D) -> Self { |
| Self(u128::decode(d)) |
| } |
| } |