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// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// Copyright by contributors to this project.
// SPDX-License-Identifier: (Apache-2.0 OR MIT)
use alloc::{collections::BTreeMap, vec::Vec};
#[cfg(feature = "std")]
use std::{collections::HashMap, hash::Hash};
use crate::{MlsDecode, MlsEncode, MlsSize};
#[cfg(feature = "std")]
impl<K, V> MlsSize for HashMap<K, V>
where
K: MlsSize,
V: MlsSize,
{
fn mls_encoded_len(&self) -> usize {
crate::iter::mls_encoded_len(self.iter())
}
}
#[cfg(feature = "std")]
impl<K, V> MlsEncode for HashMap<K, V>
where
K: MlsEncode,
V: MlsEncode,
{
fn mls_encode(&self, writer: &mut Vec<u8>) -> Result<(), crate::Error> {
crate::iter::mls_encode(self.iter(), writer)
}
}
#[cfg(feature = "std")]
impl<K, V> MlsDecode for HashMap<K, V>
where
K: MlsDecode + Hash + Eq,
V: MlsDecode,
{
fn mls_decode(reader: &mut &[u8]) -> Result<Self, crate::Error> {
crate::iter::mls_decode_collection(reader, |data| {
let mut items = HashMap::new();
while !data.is_empty() {
items.insert(K::mls_decode(data)?, V::mls_decode(data)?);
}
Ok(items)
})
}
}
impl<K, V> MlsSize for BTreeMap<K, V>
where
K: MlsSize,
V: MlsSize,
{
fn mls_encoded_len(&self) -> usize {
crate::iter::mls_encoded_len(self.iter())
}
}
impl<K, V> MlsEncode for BTreeMap<K, V>
where
K: MlsEncode,
V: MlsEncode,
{
fn mls_encode(&self, writer: &mut Vec<u8>) -> Result<(), crate::Error> {
crate::iter::mls_encode(self.iter(), writer)
}
}
impl<K, V> MlsDecode for BTreeMap<K, V>
where
K: MlsDecode + Eq + Ord,
V: MlsDecode,
{
fn mls_decode(reader: &mut &[u8]) -> Result<Self, crate::Error> {
crate::iter::mls_decode_collection(reader, |data| {
let mut items = BTreeMap::new();
while !data.is_empty() {
items.insert(K::mls_decode(data)?, V::mls_decode(data)?);
}
Ok(items)
})
}
}