gh-155561: Use multi-phase init for Modules/_testlimitedcapi.c (GH-156052)

Co-authored-by: Victor Stinner <vstinner@python.org>

Author: encukou

Modules/_testlimitedcapi.c

@@ -2,122 +2,113 @@
  * Test the limited C API.
  *
  * The 'test_*' functions exported by this module are run as part of the
- * standard Python regression test, via Lib/test/test_capi.py.
+ * standard Python regression test, via Lib/test/test_capi/test_misc.py.
  */
 
-#include "pyconfig.h"   // Py_GIL_DISABLED
-
-#ifdef Py_GIL_DISABLED
-   // Cannot test the limited C API
-#else
-   // Use the oldest limited C API version
-#  define Py_LIMITED_API 0x03020000
-#endif
-
 #include "_testlimitedcapi/parts.h"
 
-static PyMethodDef TestMethods[] = {
-    {NULL, NULL} /* sentinel */
-};
-
-static struct PyModuleDef _testlimitedcapimodule = {
-    PyModuleDef_HEAD_INIT,
-    .m_name = "_testlimitedcapi",
-    .m_size = 0,
-    .m_methods = TestMethods,
-};
-
-PyMODINIT_FUNC
-PyInit__testlimitedcapi(void)
+static int
+module_exec(PyObject *mod)
 {
-    PyObject *mod = PyModule_Create(&_testlimitedcapimodule);
-    if (mod == NULL) {
-        return NULL;
-    }
-#ifdef Py_GIL_DISABLED
-    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
-#endif
-
     if (_PyTestLimitedCAPI_Init_Abstract(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_ByteArray(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Bytes(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Capsule(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Codec(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Complex(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Dict(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Eval(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Float(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_HeaptypeRelative(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Import(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_List(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Long(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Object(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_PyOS(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Set(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Slots(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Sys(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_ThreadState(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Tuple(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Unicode(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_VectorcallLimited(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Version(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_File(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Weakref(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Run(mod) < 0) {
-        return NULL;
+        return -1;
     }
     if (_PyTestLimitedCAPI_Init_Type(mod) < 0) {
-        return NULL;
+        return -1;
     }
-    return mod;
+    return 0;
+}
+
+static struct PyModuleDef _testlimitedcapimodule_def = {
+    PyModuleDef_HEAD_INIT,
+    .m_name = "_testlimitedcapi",
+    .m_size = 0,
+    .m_slots = (PyModuleDef_Slot[]){
+        {Py_mod_exec, module_exec},
+#ifdef Py_GIL_DISABLED
+        {Py_mod_gil, Py_MOD_GIL_NOT_USED},
+#endif
+        {0}
+    }
+};
+
+PyMODINIT_FUNC
+PyInit__testlimitedcapi(void)
+{
+    return PyModuleDef_Init(&_testlimitedcapimodule_def);
 }