mirror of https://github.com/vacp2p/pmtree.git
chore: remove new method from hasher trait & implement test
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6516b95507
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@ -5,9 +5,6 @@ pub trait Hasher {
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/// Native type for the hash-function
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/// Native type for the hash-function
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type Fr: Copy + Eq + Default + From<Value> + Into<Value>;
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type Fr: Copy + Eq + Default + From<Value> + Into<Value>;
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/// Creates new hash-function instance
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fn new() -> Self;
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/// Outputs the default leaf (Fr::default())
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/// Outputs the default leaf (Fr::default())
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fn default_leaf() -> Self::Fr;
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fn default_leaf() -> Self::Fr;
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@ -1,7 +1,7 @@
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use hex_literal::hex;
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use hex_literal::hex;
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use pmtree::*;
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use pmtree::*;
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use std::collections::HashMap;
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use std::collections::HashMap;
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use tiny_keccak::Keccak;
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use tiny_keccak::{Hasher as _, Keccak};
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pub struct MemoryDB(HashMap<DBKey, Value>);
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pub struct MemoryDB(HashMap<DBKey, Value>);
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pub struct MyKeccak(Keccak);
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pub struct MyKeccak(Keccak);
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@ -10,52 +10,55 @@ pub struct MyKeccak(Keccak);
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pub struct MyFr([u8; 32]);
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pub struct MyFr([u8; 32]);
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impl Database for MemoryDB {
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impl Database for MemoryDB {
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fn new(dbpath: &str) -> Self {
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fn new(_dbpath: &str) -> Self {
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todo!()
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MemoryDB(HashMap::new())
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}
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}
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fn load(dbpath: &str) -> Self {
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fn load(_dbpath: &str) -> Self {
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todo!()
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panic!("Cannot load in-memory db!")
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}
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}
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fn get(&self, key: DBKey) -> Option<Value> {
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fn get(&self, key: DBKey) -> Option<Value> {
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todo!()
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self.0.get(&key).cloned()
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}
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}
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fn put(&mut self, key: DBKey, value: Value) {
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fn put(&mut self, key: DBKey, value: Value) {
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todo!()
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self.0.insert(key, value);
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}
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}
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fn delete(&mut self, key: DBKey) {
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fn delete(&mut self, key: DBKey) {
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todo!()
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self.0.remove(&key);
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}
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}
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}
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}
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impl From<Vec<u8>> for MyFr {
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impl From<Vec<u8>> for MyFr {
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fn from(v: Vec<u8>) -> Self {
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fn from(v: Vec<u8>) -> Self {
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todo!()
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let v = v.try_into().unwrap();
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MyFr(v)
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}
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}
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}
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}
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impl From<MyFr> for Vec<u8> {
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impl From<MyFr> for Vec<u8> {
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fn from(v: MyFr) -> Self {
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fn from(v: MyFr) -> Self {
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todo!()
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v.0.to_vec()
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}
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}
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}
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}
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impl Hasher for MyKeccak {
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impl Hasher for MyKeccak {
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type Fr = MyFr;
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type Fr = MyFr;
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fn new() -> Self {
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todo!()
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}
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fn default_leaf() -> Self::Fr {
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fn default_leaf() -> Self::Fr {
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todo!()
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MyFr([0; 32])
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}
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}
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fn hash(input: &[Self::Fr]) -> Self::Fr {
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fn hash(input: &[Self::Fr]) -> Self::Fr {
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todo!()
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let mut output = [0; 32];
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let mut hasher = Keccak::v256();
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for element in input {
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hasher.update(&element.0);
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}
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hasher.finalize(&mut output);
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MyFr(output)
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}
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}
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}
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}
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