如何将rustcpython实现为_object（）并实现为_object（）？

Question

我正在尝试为自定义类型实现traitPythonObject

impl PythonObject for PyTerm {
    #[inline]
    fn as_object(&self) -> &PyObject {
        //???
    }

    #[inline]
    fn into_object(self) -> PyObject {
        //???
    }

    #[inline]
    unsafe fn unchecked_downcast_from(o: PyObject) -> PyTerm {
        std::mem::transmute(o)
    }

    #[inline]
    unsafe fn unchecked_downcast_borrow_from(o: &PyObject) -> &PyTerm {
        std::mem::transmute(o)
    }
}

PyTerm定义为自定义结构：

struct PyTerm {
    // not important fields
}

Answer 1

你可能对cpython::pyobject_newtype!（sources）感兴趣

看起来宏是定义PythonObject的好方法