stable_hash/impls/
option.rs

1use crate::prelude::*;
2
3impl<T: StableHash> StableHash for Option<T> {
4    fn stable_hash<H: StableHasher>(&self, field_address: H::Addr, state: &mut H) {
5        profile_method!(stable_hash);
6
7        if let Some(value) = self {
8            value.stable_hash(field_address.child(0), state);
9            state.write(field_address, &[]);
10        }
11    }
12}