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key.rs
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169 lines (132 loc) · 3.78 KB
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use std::fmt::Debug;
use bytes::Bytes;
pub const TS_ENABLED: bool = false;
pub struct Key<T: AsRef<[u8]>>(T);
pub type KeySlice<'a> = Key<&'a [u8]>;
pub type KeyVec = Key<Vec<u8>>;
pub type KeyBytes = Key<Bytes>;
impl<T: AsRef<[u8]>> Key<T> {
pub fn into_inner(self) -> T {
self.0
}
pub fn len(&self) -> usize {
self.0.as_ref().len()
}
pub fn is_empty(&self) -> bool {
self.0.as_ref().is_empty()
}
pub fn for_testing_ts(self) -> u64 {
0
}
}
impl Key<Vec<u8>> {
pub fn new() -> Self {
Self(Vec::new())
}
/// Create a `KeyVec` from a `Vec<u8>`. Will be removed in week 3.
pub fn from_vec(key: Vec<u8>) -> Self {
Self(key)
}
/// Clears the key and set ts to 0.
pub fn clear(&mut self) {
self.0.clear()
}
/// Append a slice to the end of the key
pub fn append(&mut self, data: &[u8]) {
self.0.extend(data)
}
/// Set the key from a slice without re-allocating. The signature will change in week 3.
pub fn set_from_slice(&mut self, key_slice: KeySlice) {
self.0.clear();
self.0.extend(key_slice.0);
}
pub fn as_key_slice(&self) -> KeySlice {
Key(self.0.as_slice())
}
pub fn into_key_bytes(self) -> KeyBytes {
Key(self.0.into())
}
/// Always use `raw_ref` to access the key in week 1 + 2. This function will be removed in week 3.
pub fn raw_ref(&self) -> &[u8] {
self.0.as_ref()
}
pub fn for_testing_key_ref(&self) -> &[u8] {
self.0.as_ref()
}
pub fn for_testing_from_vec_no_ts(key: Vec<u8>) -> Self {
Self(key)
}
}
impl Key<Bytes> {
pub fn as_key_slice(&self) -> KeySlice {
Key(&self.0)
}
/// Create a `KeyBytes` from a `Bytes`. Will be removed in week 3.
pub fn from_bytes(bytes: Bytes) -> KeyBytes {
Key(bytes)
}
/// Always use `raw_ref` to access the key in week 1 + 2. This function will be removed in week 3.
pub fn raw_ref(&self) -> &[u8] {
self.0.as_ref()
}
pub fn for_testing_from_bytes_no_ts(bytes: Bytes) -> KeyBytes {
Key(bytes)
}
pub fn for_testing_key_ref(&self) -> &[u8] {
self.0.as_ref()
}
}
impl<'a> Key<&'a [u8]> {
pub fn to_key_vec(self) -> KeyVec {
Key(self.0.to_vec())
}
/// Create a key slice from a slice. Will be removed in week 3.
pub fn from_slice(slice: &'a [u8]) -> Self {
Self(slice)
}
/// Always use `raw_ref` to access the key in week 1 + 2. This function will be removed in week 3.
pub fn raw_ref(self) -> &'a [u8] {
self.0
}
pub fn for_testing_key_ref(self) -> &'a [u8] {
self.0
}
pub fn for_testing_from_slice_no_ts(slice: &'a [u8]) -> Self {
Self(slice)
}
pub fn for_testing_from_slice_with_ts(slice: &'a [u8], _ts: u64) -> Self {
Self(slice)
}
}
impl<T: AsRef<[u8]> + Debug> Debug for Key<T> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.0.fmt(f)
}
}
impl<T: AsRef<[u8]> + Default> Default for Key<T> {
fn default() -> Self {
Self(T::default())
}
}
impl<T: AsRef<[u8]> + PartialEq> PartialEq for Key<T> {
fn eq(&self, other: &Self) -> bool {
self.0.eq(&other.0)
}
}
impl<T: AsRef<[u8]> + Eq> Eq for Key<T> {}
impl<T: AsRef<[u8]> + Clone> Clone for Key<T> {
fn clone(&self) -> Self {
Self(self.0.clone())
}
}
impl<T: AsRef<[u8]> + Copy> Copy for Key<T> {}
impl<T: AsRef<[u8]> + PartialOrd> PartialOrd for Key<T> {
fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
self.0.partial_cmp(&other.0)
}
}
impl<T: AsRef<[u8]> + Ord> Ord for Key<T> {
fn cmp(&self, other: &Self) -> std::cmp::Ordering {
self.0.cmp(&other.0)
}
}