# weakrefobject.rs - source
Source of the Rust file `/home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/pyo3-0.13.2/src/ffi/weakrefobject.rs`.
Keywords: rust, rustlang, rust-lang

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    use crate::ffi::object::*;
    use std::os::raw::c_int;

    opaque_struct!(PyWeakReference);

    extern "C" {
        static mut _PyWeakref_RefType: PyTypeObject;
        static mut _PyWeakref_ProxyType: PyTypeObject;
        static mut _PyWeakref_CallableProxyType: PyTypeObject;

        #[cfg(PyPy)]
        #[link_name = "PyPyWeakref_CheckRef"]
        pub fn PyWeakref_CheckRef(op: *mut PyObject) -> c_int;

        #[cfg(PyPy)]
        #[link_name = "PyPyWeakref_CheckRefExact"]
        pub fn PyWeakref_CheckRefExact(op: *mut PyObject) -> c_int;

        #[cfg(PyPy)]
        #[link_name = "PyPyWeakref_CheckProxy"]
        pub fn PyWeakref_CheckProxy(op: *mut PyObject) -> c_int;
    }

    #[inline]
    #[cfg(not(PyPy))]
    pub unsafe fn PyWeakref_CheckRef(op: *mut PyObject) -> c_int {
        PyObject_TypeCheck(op, &mut _PyWeakref_RefType)
    }

    #[inline]
    #[cfg(not(PyPy))]
    pub unsafe fn PyWeakref_CheckRefExact(op: *mut PyObject) -> c_int {
        (Py_TYPE(op) == &mut _PyWeakref_RefType) as c_int
    }

    #[inline]
    #[cfg(not(PyPy))]
    pub unsafe fn PyWeakref_CheckProxy(op: *mut PyObject) -> c_int {
        ((Py_TYPE(op) == &mut _PyWeakref_ProxyType)
            || (Py_TYPE(op) == &mut _PyWeakref_CallableProxyType)) as c_int
    }

    #[inline]
    pub unsafe fn PyWeakref_Check(op: *mut PyObject) -> c_int {
        (PyWeakref_CheckRef(op) != 0 || PyWeakref_CheckProxy(op) != 0) as c_int
    }

    extern "C" {
        #[cfg_attr(PyPy, link_name = "PyPyWeakref_NewRef")]
        pub fn PyWeakref_NewRef(ob: *mut PyObject, callback: *mut PyObject) -> *mut PyObject;
        #[cfg_attr(PyPy, link_name = "PyPyWeakref_NewProxy")]
        pub fn PyWeakref_NewProxy(ob: *mut PyObject, callback: *mut PyObject) -> *mut PyObject;
        #[cfg_attr(PyPy, link_name = "PyPyWeakref_GetObject")]
        pub fn PyWeakref_GetObject(_ref: *mut PyObject) -> *mut PyObject;
    }