65 lines
1.9 KiB
Rust
65 lines
1.9 KiB
Rust
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use libc::{c_int, c_long};
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use pyport::Py_ssize_t;
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use object::*;
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#[repr(C)]
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#[derive(Copy, Clone)]
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pub struct PyWeakReference {
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#[cfg(py_sys_config="Py_TRACE_REFS")]
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pub _ob_next: *mut PyObject,
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#[cfg(py_sys_config="Py_TRACE_REFS")]
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pub _ob_prev: *mut PyObject,
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pub ob_refcnt: Py_ssize_t,
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pub ob_type: *mut PyTypeObject,
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pub wr_object: *mut PyObject,
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pub wr_callback: *mut PyObject,
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pub hash: c_long,
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pub wr_prev: *mut PyWeakReference,
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pub wr_next: *mut PyWeakReference
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}
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extern "C" {
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static mut _PyWeakref_RefType: PyTypeObject;
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static mut _PyWeakref_ProxyType: PyTypeObject;
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static mut _PyWeakref_CallableProxyType: PyTypeObject;
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}
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#[inline(always)]
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pub unsafe fn PyWeakref_CheckRef(op: *mut PyObject) -> c_int {
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PyObject_TypeCheck(op, &mut _PyWeakref_RefType)
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}
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#[inline(always)]
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pub unsafe fn PyWeakref_CheckRefExact(op: *mut PyObject) -> c_int {
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(Py_TYPE(op) == &mut _PyWeakref_RefType) as c_int
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}
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#[inline(always)]
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pub unsafe fn PyWeakref_CheckProxy(op: *mut PyObject) -> c_int {
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((Py_TYPE(op) == &mut _PyWeakref_ProxyType) ||
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(Py_TYPE(op) == &mut _PyWeakref_CallableProxyType)) as c_int
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}
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#[inline(always)]
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pub unsafe fn PyWeakref_Check(op: *mut PyObject) -> c_int {
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(PyWeakref_CheckRef(op) != 0 || PyWeakref_CheckProxy(op) != 0) as c_int
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}
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extern "C" {
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pub fn PyWeakref_NewRef(ob: *mut PyObject, callback: *mut PyObject)
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-> *mut PyObject;
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pub fn PyWeakref_NewProxy(ob: *mut PyObject, callback: *mut PyObject)
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-> *mut PyObject;
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pub fn PyWeakref_GetObject(_ref: *mut PyObject) -> *mut PyObject;
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pub fn _PyWeakref_GetWeakrefCount(head: *mut PyWeakReference) -> Py_ssize_t;
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pub fn _PyWeakref_ClearRef(slf: *mut PyWeakReference);
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}
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#[inline(always)]
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pub unsafe fn PyWeakref_GET_OBJECT(_ref: *mut PyObject) -> *mut PyObject {
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let obj = (*(_ref as *mut PyWeakReference)).wr_object;
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if Py_REFCNT(obj) > 0 { obj } else { Py_None() }
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}
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