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ffi: Add definition for PyType_GetModuleByDef

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This API is available starting in 3.11. It is not part of the Stable ABI.

PyType_GetModuleByDef searches the MRO of the given type for a module
matching the given module spec. It can be useful for users use that
`pyo3_ffi` directly and want to support multiple interpreters/per
interpreter GIL. It is useful to obtain access to the module state from
special methods like `tp_new` that can't use the METH_METHOD calling
convention.

This API is not supported on PyPy yet, but guess the symbol name for the future.
This commit is contained in:
jadedpasta 2024-01-09 23:47:34 -06:00
parent f8878a7440
commit 83f0f22efe
2 changed files with 7 additions and 1 deletions
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1
newsfragments/3734.added.md Normal file
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@ -0,0 +1 @@
Add definition for `PyType_GetModuleByDef` to `pyo3_ffi`.

7
pyo3-ffi/src/cpython/object.rs
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@ -1,5 +1,7 @@
#[cfg(Py_3_8)]
use crate::vectorcallfunc;
#[cfg(Py_3_11)]
use crate::PyModuleDef;
use crate::{object, PyGetSetDef, PyMemberDef, PyMethodDef, PyObject, Py_ssize_t};
use std::mem;
use std::os::raw::{c_char, c_int, c_uint, c_ulong, c_void};
@ -339,9 +341,12 @@ pub unsafe fn PyHeapType_GET_MEMBERS(etype: *mut PyHeapTypeObject) -> *mut PyMem
// skipped _PyType_CalculateMetaclass
// skipped _PyType_GetDocFromInternalDoc
// skipped _PyType_GetTextSignatureFromInternalDoc
// skipped _PyType_GetModuleByDef
extern "C" {
#[cfg(Py_3_11)]
#[cfg_attr(PyPy, link_name = "PyPyType_GetModuleByDef")]
pub fn PyType_GetModuleByDef(ty: *mut PyTypeObject, def: *mut PyModuleDef) -> *mut PyObject;
#[cfg(Py_3_12)]
pub fn PyType_GetDict(o: *mut PyTypeObject) -> *mut PyObject;