maplike 0.13.7

Rust traits for abstract containers and operations over them. Treats every container as map. You can have the same code work on Vec, HashMap, BTreeMap, Option, Box.
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// SPDX-FileCopyrightText: 2026 maplike contributors
//
// SPDX-License-Identifier: MIT OR Apache-2.0

use smallvec::{Array, SmallVec};

use crate::containers::Container;
use crate::iter::{IntoIter, IntoValues, Iter, Values};
use crate::ops::{Assign, Clear, Get, Len, Modify, Pop, Push, Put, Resize, Set, WithOne};

impl<A: Array> Container for SmallVec<A> {
    type Key = usize;
    type Value = A::Item;
}

impl<A: Array> WithOne<A::Item> for SmallVec<A> {
    #[inline(always)]
    fn with_one(element: A::Item) -> Self {
        let mut small_vec = SmallVec::new();
        SmallVec::push(&mut small_vec, element);

        small_vec
    }
}

impl<A: Array> Assign for SmallVec<A> {
    #[inline(always)]
    fn assign(&mut self, value: Self) {
        *self = value;
    }
}

impl<A: Array> Get<usize> for SmallVec<A> {
    #[inline(always)]
    fn get(&self, index: &usize) -> Option<&A::Item> {
        self.as_slice().get(*index)
    }
}

impl<A: Array> Set<usize> for SmallVec<A> {
    type Output = ();

    #[inline(always)]
    fn set(&mut self, index: usize, value: A::Item) {
        self[index] = value;
    }
}

impl<A: Array> Modify<usize> for SmallVec<A> {
    #[inline(always)]
    fn modify<F>(&mut self, index: &usize, f: F)
    where
        F: FnOnce(&mut A::Item),
    {
        f(&mut self[*index]);
    }
}

impl<A: Array> Push<usize> for SmallVec<A> {
    #[inline(always)]
    fn push(&mut self, value: A::Item) -> usize {
        SmallVec::push(self, value);

        self.len() - 1
    }
}

impl<A: Array> Pop for SmallVec<A> {
    #[inline(always)]
    fn pop(&mut self) -> Option<A::Item> {
        SmallVec::pop(self)
    }
}

impl<A: Array> Put<A::Item> for SmallVec<A> {
    #[inline(always)]
    fn put(&mut self, value: A::Item) -> Option<A::Item> {
        SmallVec::push(self, value);

        None
    }
}

impl<A: Array> Clear for SmallVec<A> {
    #[inline(always)]
    fn clear(&mut self) {
        SmallVec::clear(self);
    }
}

impl<A: Array> Len for SmallVec<A> {
    #[inline(always)]
    fn len(&self) -> usize {
        SmallVec::len(self)
    }
}

impl<A: Array> Resize for SmallVec<A> {
    #[inline(always)]
    fn resize(&mut self, new_len: usize, value: A::Item)
    where
        A::Item: Clone,
    {
        SmallVec::resize(self, new_len, value);
    }
}

impl<'a, A: Array + 'a> Values<'a> for SmallVec<A>
where
    A::Item: 'a,
{
    type Values = core::slice::Iter<'a, A::Item>;

    #[inline(always)]
    fn values(&'a self) -> Self::Values {
        self.as_slice().iter()
    }
}

impl<A: Array> IntoValues for SmallVec<A> {
    type IntoValues = <SmallVec<A> as IntoIterator>::IntoIter;

    #[inline(always)]
    fn into_values(self) -> Self::IntoValues {
        IntoIterator::into_iter(self)
    }
}

impl<'a, A: Array + 'a> Iter<'a, usize> for SmallVec<A>
where
    A::Item: 'a,
{
    type Iter = core::iter::Enumerate<core::slice::Iter<'a, A::Item>>;

    #[inline(always)]
    fn iter(&'a self) -> Self::Iter {
        self.as_slice().iter().enumerate()
    }
}

impl<A: Array> IntoIter<usize> for SmallVec<A> {
    type IntoIter = core::iter::Enumerate<<SmallVec<A> as IntoIterator>::IntoIter>;

    #[inline(always)]
    fn into_iter(self) -> Self::IntoIter {
        IntoIterator::into_iter(self).enumerate()
    }
}