#[cfg(not(PyPy))]
use crate::instance::PyNativeType;
use crate::{ffi, AsPyPointer, PyAny, Python};
#[cfg(not(PyPy))]
use std::ops::*;
use std::os::raw::c_double;
#[repr(transparent)]
pub struct PyComplex(PyAny);
pyobject_native_type!(
PyComplex,
ffi::PyComplexObject,
ffi::PyComplex_Type,
ffi::PyComplex_Check
);
impl PyComplex {
pub fn from_doubles(py: Python, real: c_double, imag: c_double) -> &PyComplex {
unsafe {
let ptr = ffi::PyComplex_FromDoubles(real, imag);
py.from_owned_ptr(ptr)
}
}
pub fn real(&self) -> c_double {
unsafe { ffi::PyComplex_RealAsDouble(self.as_ptr()) }
}
pub fn imag(&self) -> c_double {
unsafe { ffi::PyComplex_ImagAsDouble(self.as_ptr()) }
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
pub fn abs(&self) -> c_double {
unsafe {
let val = (*(self.as_ptr() as *mut ffi::PyComplexObject)).cval;
ffi::_Py_c_abs(val)
}
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
pub fn pow(&self, other: &PyComplex) -> &PyComplex {
unsafe {
self.py()
.from_owned_ptr(complex_operation(self, other, ffi::_Py_c_pow))
}
}
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[inline(always)]
unsafe fn complex_operation(
l: &PyComplex,
r: &PyComplex,
operation: unsafe extern "C" fn(ffi::Py_complex, ffi::Py_complex) -> ffi::Py_complex,
) -> *mut ffi::PyObject {
let l_val = (*(l.as_ptr() as *mut ffi::PyComplexObject)).cval;
let r_val = (*(r.as_ptr() as *mut ffi::PyComplexObject)).cval;
ffi::PyComplex_FromCComplex(operation(l_val, r_val))
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
impl<'py> Add for &'py PyComplex {
type Output = &'py PyComplex;
fn add(self, other: &'py PyComplex) -> &'py PyComplex {
unsafe {
self.py()
.from_owned_ptr(complex_operation(self, other, ffi::_Py_c_sum))
}
}
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
impl<'py> Sub for &'py PyComplex {
type Output = &'py PyComplex;
fn sub(self, other: &'py PyComplex) -> &'py PyComplex {
unsafe {
self.py()
.from_owned_ptr(complex_operation(self, other, ffi::_Py_c_diff))
}
}
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
impl<'py> Mul for &'py PyComplex {
type Output = &'py PyComplex;
fn mul(self, other: &'py PyComplex) -> &'py PyComplex {
unsafe {
self.py()
.from_owned_ptr(complex_operation(self, other, ffi::_Py_c_prod))
}
}
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
impl<'py> Div for &'py PyComplex {
type Output = &'py PyComplex;
fn div(self, other: &'py PyComplex) -> &'py PyComplex {
unsafe {
self.py()
.from_owned_ptr(complex_operation(self, other, ffi::_Py_c_quot))
}
}
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
impl<'py> Neg for &'py PyComplex {
type Output = &'py PyComplex;
fn neg(self) -> &'py PyComplex {
unsafe {
let val = (*(self.as_ptr() as *mut ffi::PyComplexObject)).cval;
self.py()
.from_owned_ptr(ffi::PyComplex_FromCComplex(ffi::_Py_c_neg(val)))
}
}
}
#[cfg(feature = "num-complex")]
mod complex_conversion {
use super::*;
use crate::{FromPyObject, PyErr, PyNativeType, PyObject, PyResult, ToPyObject};
use num_complex::Complex;
impl PyComplex {
pub fn from_complex<'py, F: Into<c_double>>(
py: Python<'py>,
complex: Complex<F>,
) -> &'py PyComplex {
unsafe {
let ptr = ffi::PyComplex_FromDoubles(complex.re.into(), complex.im.into());
py.from_owned_ptr(ptr)
}
}
}
macro_rules! complex_conversion {
($float: ty) => {
impl ToPyObject for Complex<$float> {
#[inline]
fn to_object(&self, py: Python) -> PyObject {
crate::IntoPy::<PyObject>::into_py(self.to_owned(), py)
}
}
impl crate::IntoPy<PyObject> for Complex<$float> {
fn into_py(self, py: Python) -> PyObject {
unsafe {
let raw_obj =
ffi::PyComplex_FromDoubles(self.re as c_double, self.im as c_double);
PyObject::from_owned_ptr(py, raw_obj)
}
}
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[allow(clippy::float_cmp)]
impl<'source> FromPyObject<'source> for Complex<$float> {
fn extract(obj: &'source PyAny) -> PyResult<Complex<$float>> {
unsafe {
let val = ffi::PyComplex_AsCComplex(obj.as_ptr());
if val.real == -1.0 && PyErr::occurred(obj.py()) {
Err(PyErr::fetch(obj.py()))
} else {
Ok(Complex::new(val.real as $float, val.imag as $float))
}
}
}
}
#[cfg(any(Py_LIMITED_API, PyPy))]
#[allow(clippy::float_cmp)]
impl<'source> FromPyObject<'source> for Complex<$float> {
fn extract(obj: &'source PyAny) -> PyResult<Complex<$float>> {
unsafe {
let ptr = obj.as_ptr();
let real = ffi::PyComplex_RealAsDouble(ptr);
if real == -1.0 && PyErr::occurred(obj.py()) {
return Err(PyErr::fetch(obj.py()));
}
let imag = ffi::PyComplex_ImagAsDouble(ptr);
Ok(Complex::new(real as $float, imag as $float))
}
}
}
};
}
complex_conversion!(f32);
complex_conversion!(f64);
#[allow(clippy::float_cmp)]
#[test]
fn from_complex() {
let gil = Python::acquire_gil();
let py = gil.python();
let complex = Complex::new(3.0, 1.2);
let py_c = PyComplex::from_complex(py, complex);
assert_eq!(py_c.real(), 3.0);
assert_eq!(py_c.imag(), 1.2);
}
#[test]
fn to_from_complex() {
let gil = Python::acquire_gil();
let py = gil.python();
let val = Complex::new(3.0, 1.2);
let obj = val.to_object(py);
assert_eq!(obj.extract::<Complex<f64>>(py).unwrap(), val);
}
#[test]
fn from_complex_err() {
let gil = Python::acquire_gil();
let py = gil.python();
let obj = vec![1].to_object(py);
assert!(obj.extract::<Complex<f64>>(py).is_err());
}
}
#[cfg(test)]
mod test {
use super::PyComplex;
use crate::Python;
use assert_approx_eq::assert_approx_eq;
#[test]
fn test_from_double() {
use assert_approx_eq::assert_approx_eq;
let gil = Python::acquire_gil();
let py = gil.python();
let complex = PyComplex::from_doubles(py, 3.0, 1.2);
assert_approx_eq!(complex.real(), 3.0);
assert_approx_eq!(complex.imag(), 1.2);
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[test]
fn test_add() {
let gil = Python::acquire_gil();
let py = gil.python();
let l = PyComplex::from_doubles(py, 3.0, 1.2);
let r = PyComplex::from_doubles(py, 1.0, 2.6);
let res = l + r;
assert_approx_eq!(res.real(), 4.0);
assert_approx_eq!(res.imag(), 3.8);
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[test]
fn test_sub() {
let gil = Python::acquire_gil();
let py = gil.python();
let l = PyComplex::from_doubles(py, 3.0, 1.2);
let r = PyComplex::from_doubles(py, 1.0, 2.6);
let res = l - r;
assert_approx_eq!(res.real(), 2.0);
assert_approx_eq!(res.imag(), -1.4);
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[test]
fn test_mul() {
let gil = Python::acquire_gil();
let py = gil.python();
let l = PyComplex::from_doubles(py, 3.0, 1.2);
let r = PyComplex::from_doubles(py, 1.0, 2.6);
let res = l * r;
assert_approx_eq!(res.real(), -0.12);
assert_approx_eq!(res.imag(), 9.0);
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[test]
fn test_div() {
let gil = Python::acquire_gil();
let py = gil.python();
let l = PyComplex::from_doubles(py, 3.0, 1.2);
let r = PyComplex::from_doubles(py, 1.0, 2.6);
let res = l / r;
assert_approx_eq!(res.real(), 0.788_659_793_814_432_9);
assert_approx_eq!(res.imag(), -0.850_515_463_917_525_7);
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[test]
fn test_neg() {
let gil = Python::acquire_gil();
let py = gil.python();
let val = PyComplex::from_doubles(py, 3.0, 1.2);
let res = -val;
assert_approx_eq!(res.real(), -3.0);
assert_approx_eq!(res.imag(), -1.2);
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[test]
fn test_abs() {
let gil = Python::acquire_gil();
let py = gil.python();
let val = PyComplex::from_doubles(py, 3.0, 1.2);
assert_approx_eq!(val.abs(), 3.231_098_884_280_702_2);
}
#[cfg(not(any(Py_LIMITED_API, PyPy)))]
#[test]
fn test_pow() {
let gil = Python::acquire_gil();
let py = gil.python();
let l = PyComplex::from_doubles(py, 3.0, 1.2);
let r = PyComplex::from_doubles(py, 1.2, 2.6);
let val = l.pow(r);
assert_approx_eq!(val.real(), -1.419_309_997_016_603_7);
assert_approx_eq!(val.imag(), -0.541_297_466_033_544_6);
}
}