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use decanter::prelude::{hasher, Hashable, H256};
use serde::{Deserialize, Serialize};
#[derive(Clone, Debug, Default, Deserialize, Eq, Hash, PartialEq, Serialize)]
pub struct MMRStore<T>(pub T);
impl<T> MMRStore<T> {
pub fn new(data: T) -> Self {
Self(data)
}
pub fn data(&self) -> &T {
&self.0
}
}
impl<T> Hashable for MMRStore<T>
where
T: Serialize,
{
fn hash(&self) -> H256 {
hasher(&self).as_slice().to_owned().into()
}
}
impl<T> std::convert::From<&MMRStore<T>> for MMRStore<T>
where
T: Clone,
{
fn from(data: &MMRStore<T>) -> Self {
Self(data.clone().0)
}
}
impl<T> std::convert::From<T> for MMRStore<T> {
fn from(data: T) -> Self {
Self(data)
}
}
impl<T> std::fmt::Display for MMRStore<T>
where
T: Serialize,
{
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", serde_json::to_string(&self).unwrap())
}
}
#[cfg(test)]
mod tests {
use super::*;
use scsys::gen::generate_random_string;
use std::ops::Range;
#[test]
fn test_store_default() {
let a = MMRStore::<usize>::default();
let b = MMRStore::<usize>::new(Default::default());
assert_eq!(a, b)
}
#[test]
fn test_store_hash() {
let data = Range { start: 0, end: 12 }
.map(|_| generate_random_string(12))
.collect::<Vec<String>>();
let a = MMRStore::<Vec<String>>::from(data);
let b = MMRStore::from(&a);
assert_eq!(a, b)
}
}