stable-hash 0.4.3

A stable, structured hash with backward compatibility
Documentation 
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use crate::prelude::*;

macro_rules! impl_int {
    ($P:ty, $N:ty) => {
        impl StableHash for $P {
            fn stable_hash<H: StableHasher>(&self, field_address: H::Addr, state: &mut H) {
                profile_method!(stable_hash);

                AsInt {
                    is_negative: false,
                    little_endian: &self.to_le_bytes(),
                }
                .stable_hash(field_address, state)
            }
        }
        impl StableHash for $N {
            fn stable_hash<H: StableHasher>(&self, field_address: H::Addr, state: &mut H) {
                profile_method!(stable_hash);

                AsInt {
                    is_negative: self.is_negative(),
                    little_endian: &self.wrapping_abs().to_le_bytes(),
                }
                .stable_hash(field_address, state)
            }
        }
    };
}

impl_int!(u128, i128);
impl_int!(u64, i64);
impl_int!(u32, i32);
impl_int!(u16, i16);
impl_int!(u8, i8);
impl_int!(usize, isize);