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use crate::object::{PyObject, PyTypeObject, Py_TYPE};
#[cfg(Py_3_9)]
use crate::PyObject_TypeCheck;
use std::os::raw::{c_char, c_int, c_void};
use std::{mem, ptr};
#[cfg(all(Py_3_9, not(Py_LIMITED_API)))]
pub struct PyCFunctionObject {
pub ob_base: PyObject,
pub m_ml: *mut PyMethodDef,
pub m_self: *mut PyObject,
pub m_module: *mut PyObject,
pub m_weakreflist: *mut PyObject,
#[cfg(not(PyPy))]
pub vectorcall: Option<crate::vectorcallfunc>,
}
#[cfg_attr(windows, link(name = "pythonXY"))]
extern "C" {
#[cfg_attr(PyPy, link_name = "PyPyCFunction_Type")]
pub static mut PyCFunction_Type: PyTypeObject;
}
#[cfg(Py_3_9)]
#[inline]
pub unsafe fn PyCFunction_CheckExact(op: *mut PyObject) -> c_int {
(Py_TYPE(op) == addr_of_mut_shim!(PyCFunction_Type)) as c_int
}
#[cfg(Py_3_9)]
#[inline]
pub unsafe fn PyCFunction_Check(op: *mut PyObject) -> c_int {
PyObject_TypeCheck(op, addr_of_mut_shim!(PyCFunction_Type))
}
#[cfg(not(Py_3_9))]
#[inline]
pub unsafe fn PyCFunction_Check(op: *mut PyObject) -> c_int {
(Py_TYPE(op) == addr_of_mut_shim!(PyCFunction_Type)) as c_int
}
pub type PyCFunction =
unsafe extern "C" fn(slf: *mut PyObject, args: *mut PyObject) -> *mut PyObject;
#[cfg(any(Py_3_10, not(Py_LIMITED_API)))]
pub type _PyCFunctionFast = unsafe extern "C" fn(
slf: *mut PyObject,
args: *mut *mut PyObject,
nargs: crate::pyport::Py_ssize_t,
) -> *mut PyObject;
pub type PyCFunctionWithKeywords = unsafe extern "C" fn(
slf: *mut PyObject,
args: *mut PyObject,
kwds: *mut PyObject,
) -> *mut PyObject;
#[cfg(not(Py_LIMITED_API))]
pub type _PyCFunctionFastWithKeywords = unsafe extern "C" fn(
slf: *mut PyObject,
args: *const *mut PyObject,
nargs: crate::pyport::Py_ssize_t,
kwnames: *mut PyObject,
) -> *mut PyObject;
#[cfg(all(Py_3_9, not(Py_LIMITED_API)))]
pub type PyCMethod = unsafe extern "C" fn(
slf: *mut PyObject,
defining_class: *mut PyTypeObject,
args: *const *mut PyObject,
nargs: crate::pyport::Py_ssize_t,
kwnames: *mut PyObject,
) -> *mut PyObject;
extern "C" {
#[cfg_attr(PyPy, link_name = "PyPyCFunction_GetFunction")]
pub fn PyCFunction_GetFunction(f: *mut PyObject) -> Option<PyCFunction>;
pub fn PyCFunction_GetSelf(f: *mut PyObject) -> *mut PyObject;
pub fn PyCFunction_GetFlags(f: *mut PyObject) -> c_int;
#[cfg_attr(Py_3_9, deprecated(note = "Python 3.9"))]
pub fn PyCFunction_Call(
f: *mut PyObject,
args: *mut PyObject,
kwds: *mut PyObject,
) -> *mut PyObject;
}
#[repr(C)]
#[derive(Copy, Clone, PartialEq, Eq)]
pub struct PyMethodDef {
pub ml_name: *const c_char,
pub ml_meth: PyMethodDefPointer,
pub ml_flags: c_int,
pub ml_doc: *const c_char,
}
impl PyMethodDef {
pub const fn zeroed() -> PyMethodDef {
PyMethodDef {
ml_name: ptr::null(),
ml_meth: PyMethodDefPointer {
Void: ptr::null_mut(),
},
ml_flags: 0,
ml_doc: ptr::null(),
}
}
}
impl Default for PyMethodDef {
fn default() -> PyMethodDef {
PyMethodDef {
ml_name: ptr::null(),
ml_meth: PyMethodDefPointer {
Void: ptr::null_mut(),
},
ml_flags: 0,
ml_doc: ptr::null(),
}
}
}
#[repr(C)]
#[derive(Copy, Clone, Eq)]
pub union PyMethodDefPointer {
pub PyCFunction: PyCFunction,
pub PyCFunctionWithKeywords: PyCFunctionWithKeywords,
#[cfg(any(Py_3_10, not(Py_LIMITED_API)))]
pub _PyCFunctionFast: _PyCFunctionFast,
#[cfg(not(Py_LIMITED_API))]
pub _PyCFunctionFastWithKeywords: _PyCFunctionFastWithKeywords,
#[cfg(all(Py_3_9, not(Py_LIMITED_API)))]
pub PyCMethod: PyCMethod,
Void: *mut c_void,
}
impl PyMethodDefPointer {
pub fn as_ptr(&self) -> *mut c_void {
unsafe { self.Void }
}
pub fn is_null(&self) -> bool {
self.as_ptr().is_null()
}
pub const fn zeroed() -> PyMethodDefPointer {
PyMethodDefPointer {
Void: ptr::null_mut(),
}
}
}
impl PartialEq for PyMethodDefPointer {
fn eq(&self, other: &Self) -> bool {
unsafe { self.Void == other.Void }
}
}
impl std::fmt::Pointer for PyMethodDefPointer {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let ptr = unsafe { self.Void };
std::fmt::Pointer::fmt(&ptr, f)
}
}
const _: () =
[()][mem::size_of::<PyMethodDefPointer>() - mem::size_of::<Option<extern "C" fn()>>()];
#[cfg(not(Py_3_9))]
extern "C" {
#[cfg_attr(PyPy, link_name = "PyPyCFunction_New")]
pub fn PyCFunction_New(ml: *mut PyMethodDef, slf: *mut PyObject) -> *mut PyObject;
#[cfg_attr(PyPy, link_name = "PyPyCFunction_NewEx")]
pub fn PyCFunction_NewEx(
ml: *mut PyMethodDef,
slf: *mut PyObject,
module: *mut PyObject,
) -> *mut PyObject;
}
#[cfg(Py_3_9)]
#[inline]
pub unsafe fn PyCFunction_New(ml: *mut PyMethodDef, slf: *mut PyObject) -> *mut PyObject {
PyCFunction_NewEx(ml, slf, std::ptr::null_mut())
}
#[cfg(Py_3_9)]
#[inline]
pub unsafe fn PyCFunction_NewEx(
ml: *mut PyMethodDef,
slf: *mut PyObject,
module: *mut PyObject,
) -> *mut PyObject {
PyCMethod_New(ml, slf, module, std::ptr::null_mut())
}
#[cfg(Py_3_9)]
extern "C" {
#[cfg_attr(PyPy, link_name = "PyPyCMethod_New")]
pub fn PyCMethod_New(
ml: *mut PyMethodDef,
slf: *mut PyObject,
module: *mut PyObject,
cls: *mut PyTypeObject,
) -> *mut PyObject;
}
pub const METH_VARARGS: c_int = 0x0001;
pub const METH_KEYWORDS: c_int = 0x0002;
pub const METH_NOARGS: c_int = 0x0004;
pub const METH_O: c_int = 0x0008;
pub const METH_CLASS: c_int = 0x0010;
pub const METH_STATIC: c_int = 0x0020;
pub const METH_COEXIST: c_int = 0x0040;
#[cfg(any(Py_3_10, not(Py_LIMITED_API)))]
pub const METH_FASTCALL: c_int = 0x0080;
#[cfg(all(Py_3_9, not(Py_LIMITED_API)))]
pub const METH_METHOD: c_int = 0x0200;
extern "C" {
#[cfg(not(Py_3_9))]
pub fn PyCFunction_ClearFreeList() -> c_int;
}