conspire/math/tensor/rank_3/list/
mod.rs

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#[cfg(test)]
pub mod test;

use std::{
    array::from_fn,
    fmt::{Display, Formatter, Result},
    ops::{Add, AddAssign, Div, DivAssign, Index, IndexMut, Mul, MulAssign, Sub, SubAssign},
};

use super::{Tensor, TensorArray, TensorRank0, TensorRank3};

/// A list of *d*-dimensional tensors of rank 3.
///
/// `D` is the dimension, `I`, `J`, `K` are the configurations `W` is the list length.
#[derive(Clone, Debug)]
pub struct TensorRank3List<
    const D: usize,
    const I: usize,
    const J: usize,
    const K: usize,
    const W: usize,
>([TensorRank3<D, I, J, K>; W]);

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> Display
    for TensorRank3List<D, I, J, K, W>
{
    fn fmt(&self, _f: &mut Formatter) -> Result {
        Ok(())
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> Tensor
    for TensorRank3List<D, I, J, K, W>
{
    type Item = TensorRank3<D, I, J, K>;
    fn iter(&self) -> impl Iterator<Item = &Self::Item> {
        self.0.iter()
    }
    fn iter_mut(&mut self) -> impl Iterator<Item = &mut Self::Item> {
        self.0.iter_mut()
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> TensorArray
    for TensorRank3List<D, I, J, K, W>
{
    type Array = [[[[TensorRank0; D]; D]; D]; W];
    type Item = TensorRank3<D, I, J, K>;
    fn as_array(&self) -> Self::Array {
        let mut array = [[[[0.0; D]; D]; D]; W];
        array
            .iter_mut()
            .zip(self.iter())
            .for_each(|(entry_rank_3, tensor_rank_3)| *entry_rank_3 = tensor_rank_3.as_array());
        array
    }
    fn identity() -> Self {
        Self(from_fn(|_| Self::Item::identity()))
    }
    fn new(array: Self::Array) -> Self {
        array.into_iter().map(Self::Item::new).collect()
    }
    fn zero() -> Self {
        Self(from_fn(|_| Self::Item::zero()))
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    FromIterator<TensorRank3<D, I, J, K>> for TensorRank3List<D, I, J, K, W>
{
    fn from_iter<Ii: IntoIterator<Item = TensorRank3<D, I, J, K>>>(into_iterator: Ii) -> Self {
        let mut tensor_rank_3_list = Self::zero();
        tensor_rank_3_list
            .iter_mut()
            .zip(into_iterator)
            .for_each(|(tensor_rank_3_list_entry, entry)| *tensor_rank_3_list_entry = entry);
        tensor_rank_3_list
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> Index<usize>
    for TensorRank3List<D, I, J, K, W>
{
    type Output = TensorRank3<D, I, J, K>;
    fn index(&self, index: usize) -> &Self::Output {
        &self.0[index]
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> IndexMut<usize>
    for TensorRank3List<D, I, J, K, W>
{
    fn index_mut(&mut self, index: usize) -> &mut Self::Output {
        &mut self.0[index]
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> std::iter::Sum
    for TensorRank3List<D, I, J, K, W>
{
    fn sum<Ii>(iter: Ii) -> Self
    where
        Ii: Iterator<Item = Self>,
    {
        let mut output = Self::zero();
        iter.for_each(|item| output += item);
        output
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> Add
    for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn add(mut self, tensor_rank_3_list: Self) -> Self::Output {
        self += tensor_rank_3_list;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> Add<&Self>
    for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn add(mut self, tensor_rank_3_list: &Self) -> Self::Output {
        self += tensor_rank_3_list;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> AddAssign
    for TensorRank3List<D, I, J, K, W>
{
    fn add_assign(&mut self, tensor_rank_3_list: Self) {
        self.iter_mut()
            .zip(tensor_rank_3_list.iter())
            .for_each(|(self_i, tensor_rank_3)| *self_i += tensor_rank_3);
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    AddAssign<&Self> for TensorRank3List<D, I, J, K, W>
{
    fn add_assign(&mut self, tensor_rank_3_list: &Self) {
        self.iter_mut()
            .zip(tensor_rank_3_list.iter())
            .for_each(|(self_i, tensor_rank_3)| *self_i += tensor_rank_3);
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    Div<TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn div(mut self, tensor_rank_0: TensorRank0) -> Self::Output {
        self /= &tensor_rank_0;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    Div<&TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn div(mut self, tensor_rank_0: &TensorRank0) -> Self::Output {
        self /= tensor_rank_0;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    DivAssign<TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    fn div_assign(&mut self, tensor_rank_0: TensorRank0) {
        self.iter_mut().for_each(|entry| *entry /= &tensor_rank_0);
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    DivAssign<&TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    fn div_assign(&mut self, tensor_rank_0: &TensorRank0) {
        self.iter_mut().for_each(|entry| *entry /= tensor_rank_0);
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    Mul<TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn mul(mut self, tensor_rank_0: TensorRank0) -> Self::Output {
        self *= &tensor_rank_0;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    Mul<&TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn mul(mut self, tensor_rank_0: &TensorRank0) -> Self::Output {
        self *= tensor_rank_0;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    MulAssign<TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    fn mul_assign(&mut self, tensor_rank_0: TensorRank0) {
        self.iter_mut().for_each(|entry| *entry *= &tensor_rank_0);
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    MulAssign<&TensorRank0> for TensorRank3List<D, I, J, K, W>
{
    fn mul_assign(&mut self, tensor_rank_0: &TensorRank0) {
        self.iter_mut().for_each(|entry| *entry *= tensor_rank_0);
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> Sub
    for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn sub(mut self, tensor_rank_3_list: Self) -> Self::Output {
        self -= tensor_rank_3_list;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> Sub<&Self>
    for TensorRank3List<D, I, J, K, W>
{
    type Output = Self;
    fn sub(mut self, tensor_rank_3_list: &Self) -> Self::Output {
        self -= tensor_rank_3_list;
        self
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize> SubAssign
    for TensorRank3List<D, I, J, K, W>
{
    fn sub_assign(&mut self, tensor_rank_3_list: Self) {
        self.iter_mut()
            .zip(tensor_rank_3_list.iter())
            .for_each(|(self_entry, tensor_rank_3)| *self_entry -= tensor_rank_3);
    }
}

impl<const D: usize, const I: usize, const J: usize, const K: usize, const W: usize>
    SubAssign<&Self> for TensorRank3List<D, I, J, K, W>
{
    fn sub_assign(&mut self, tensor_rank_3_list: &Self) {
        self.iter_mut()
            .zip(tensor_rank_3_list.iter())
            .for_each(|(self_entry, tensor_rank_3)| *self_entry -= tensor_rank_3);
    }
}