rustpower 0.5.0-rc.2

An experimental ECS world snapshot system built on Bevy, featuring structured archetype storage and manifest-based serialization.
Documentation 
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use nalgebra::*;
use nalgebra_sparse::{CscMatrix, CsrMatrix};
use simba::scalar::{SubsetOf, SupersetOf};
pub(crate) trait Cast<T> {
    type Mat;

    fn cast(&self) -> Self::Mat;
}
pub(crate) trait DownCast<T> {
    type Mat;

    fn down_cast(&self) -> Self::Mat;
}
impl Cast<Complex<f64>> for CscMatrix<f64> {
    type Mat = CscMatrix<Complex<f64>>;

    fn cast(&self) -> Self::Mat {
        unsafe {
            CscMatrix::try_from_csc_data(
                self.nrows(),
                self.ncols(),
                self.col_offsets().to_vec(),
                self.row_indices().to_vec(),
                self.values()
                    .iter()
                    .map(|x| Complex::new(*x, 0.0))
                    .collect(),
            )
            .unwrap_unchecked()
        }
    }
}
impl Cast<Complex<f64>> for CsrMatrix<f64> {
    type Mat = CsrMatrix<Complex<f64>>;

    fn cast(&self) -> Self::Mat {
        unsafe {
            CsrMatrix::try_from_csr_data(
                self.nrows(),
                self.ncols(),
                self.row_offsets().to_vec(),
                self.col_indices().to_vec(),
                self.values()
                    .iter()
                    .map(|x| Complex::new(*x, 0.0))
                    .collect(),
            )
            .unwrap_unchecked()
        }
    }
}
impl Cast<Complex<f64>> for CscMatrix<i64> {
    type Mat = CscMatrix<Complex<f64>>;

    fn cast(&self) -> Self::Mat {
        unsafe {
            CscMatrix::try_from_csc_data(
                self.nrows(),
                self.ncols(),
                self.col_offsets().to_vec(),
                self.row_indices().to_vec(),
                self.values()
                    .iter()
                    .map(|x| Complex::new(*x as f64, 0.0))
                    .collect(),
            )
            .unwrap_unchecked()
        }
    }
}

impl Cast<Complex<f64>> for CsrMatrix<i64> {
    type Mat = CsrMatrix<Complex<f64>>;

    fn cast(&self) -> Self::Mat {
        unsafe {
            CsrMatrix::try_from_csr_data(
                self.nrows(),
                self.ncols(),
                self.row_offsets().to_vec(),
                self.col_indices().to_vec(),
                self.values()
                    .iter()
                    .map(|x| Complex::new(*x as f64, 0.0))
                    .collect(),
            )
            .unwrap_unchecked()
        }
    }
}