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-rw-r--r--Lib/test/_testcppext.cpp258
1 files changed, 0 insertions, 258 deletions
diff --git a/Lib/test/_testcppext.cpp b/Lib/test/_testcppext.cpp
deleted file mode 100644
index 82b4713..0000000
--- a/Lib/test/_testcppext.cpp
+++ /dev/null
@@ -1,258 +0,0 @@
-// gh-91321: Very basic C++ test extension to check that the Python C API is
-// compatible with C++ and does not emit C++ compiler warnings.
-
-// Always enable assertions
-#undef NDEBUG
-
-#include "Python.h"
-
-#if __cplusplus >= 201103
-# define NAME _testcpp11ext
-#else
-# define NAME _testcpp03ext
-#endif
-
-#define _STR(NAME) #NAME
-#define STR(NAME) _STR(NAME)
-
-PyDoc_STRVAR(_testcppext_add_doc,
-"add(x, y)\n"
-"\n"
-"Return the sum of two integers: x + y.");
-
-static PyObject *
-_testcppext_add(PyObject *Py_UNUSED(module), PyObject *args)
-{
- long i, j;
- if (!PyArg_ParseTuple(args, "ll:foo", &i, &j)) {
- return _Py_NULL;
- }
- long res = i + j;
- return PyLong_FromLong(res);
-}
-
-
-// Class to test operator casting an object to PyObject*
-class StrongRef
-{
-public:
- StrongRef(PyObject *obj) : m_obj(obj) {
- Py_INCREF(this->m_obj);
- }
-
- ~StrongRef() {
- Py_DECREF(this->m_obj);
- }
-
- // Cast to PyObject*: get a borrowed reference
- inline operator PyObject*() const { return this->m_obj; }
-
-private:
- PyObject *m_obj; // Strong reference
-};
-
-
-static PyObject *
-test_api_casts(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
-{
- PyObject *obj = Py_BuildValue("(ii)", 1, 2);
- if (obj == _Py_NULL) {
- return _Py_NULL;
- }
- Py_ssize_t refcnt = Py_REFCNT(obj);
- assert(refcnt >= 1);
-
- // gh-92138: For backward compatibility, functions of Python C API accepts
- // "const PyObject*". Check that using it does not emit C++ compiler
- // warnings.
- const PyObject *const_obj = obj;
- Py_INCREF(const_obj);
- Py_DECREF(const_obj);
- PyTypeObject *type = Py_TYPE(const_obj);
- assert(Py_REFCNT(const_obj) == refcnt);
- assert(type == &PyTuple_Type);
- assert(PyTuple_GET_SIZE(const_obj) == 2);
- PyObject *one = PyTuple_GET_ITEM(const_obj, 0);
- assert(PyLong_AsLong(one) == 1);
-
- // gh-92898: StrongRef doesn't inherit from PyObject but has an operator to
- // cast to PyObject*.
- StrongRef strong_ref(obj);
- assert(Py_TYPE(strong_ref) == &PyTuple_Type);
- assert(Py_REFCNT(strong_ref) == (refcnt + 1));
- Py_INCREF(strong_ref);
- Py_DECREF(strong_ref);
-
- // gh-93442: Pass 0 as NULL for PyObject*
- Py_XINCREF(0);
- Py_XDECREF(0);
-#if __cplusplus >= 201103
- // Test nullptr passed as PyObject*
- Py_XINCREF(nullptr);
- Py_XDECREF(nullptr);
-#endif
-
- Py_DECREF(obj);
- Py_RETURN_NONE;
-}
-
-
-static PyObject *
-test_unicode(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
-{
- PyObject *str = PyUnicode_FromString("abc");
- if (str == _Py_NULL) {
- return _Py_NULL;
- }
-
- assert(PyUnicode_Check(str));
- assert(PyUnicode_GET_LENGTH(str) == 3);
-
- // gh-92800: test PyUnicode_READ()
- const void* data = PyUnicode_DATA(str);
- assert(data != _Py_NULL);
- int kind = PyUnicode_KIND(str);
- assert(kind == PyUnicode_1BYTE_KIND);
- assert(PyUnicode_READ(kind, data, 0) == 'a');
-
- // gh-92800: test PyUnicode_READ() casts
- const void* const_data = PyUnicode_DATA(str);
- unsigned int ukind = static_cast<unsigned int>(kind);
- assert(PyUnicode_READ(ukind, const_data, 2) == 'c');
-
- assert(PyUnicode_READ_CHAR(str, 1) == 'b');
-
- Py_DECREF(str);
- Py_RETURN_NONE;
-}
-
-/* Test a `new`-allocated object with a virtual method.
- * (https://github.com/python/cpython/issues/94731) */
-
-class VirtualPyObject : public PyObject {
-public:
- VirtualPyObject();
- virtual ~VirtualPyObject() {
- delete [] internal_data;
- --instance_count;
- }
- virtual void set_internal_data() {
- internal_data[0] = 1;
- }
- static void dealloc(PyObject* o) {
- delete static_cast<VirtualPyObject*>(o);
- }
-
- // Number of "living" instances
- static int instance_count;
-private:
- // buffer that can get corrupted
- int* internal_data;
-};
-
-int VirtualPyObject::instance_count = 0;
-
-PyType_Slot VirtualPyObject_Slots[] = {
- {Py_tp_free, (void*)VirtualPyObject::dealloc},
- {0, _Py_NULL},
-};
-
-PyType_Spec VirtualPyObject_Spec = {
- /* .name */ STR(NAME) ".VirtualPyObject",
- /* .basicsize */ sizeof(VirtualPyObject),
- /* .itemsize */ 0,
- /* .flags */ Py_TPFLAGS_DEFAULT,
- /* .slots */ VirtualPyObject_Slots,
-};
-
-VirtualPyObject::VirtualPyObject() {
- // Create a temporary type (just so we don't need to store it)
- PyObject *type = PyType_FromSpec(&VirtualPyObject_Spec);
- // no good way to signal failure from a C++ constructor, so use assert
- // for error handling
- assert(type);
- assert(PyObject_Init(this, (PyTypeObject *)type));
- Py_DECREF(type);
- internal_data = new int[50];
- ++instance_count;
-}
-
-static PyObject *
-test_virtual_object(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
-{
- VirtualPyObject* obj = new VirtualPyObject();
- obj->set_internal_data();
- Py_DECREF(obj);
- if (VirtualPyObject::instance_count != 0) {
- return PyErr_Format(
- PyExc_AssertionError,
- "instance_count should be 0, got %d",
- VirtualPyObject::instance_count);
- }
- Py_RETURN_NONE;
-}
-
-static PyMethodDef _testcppext_methods[] = {
- {"add", _testcppext_add, METH_VARARGS, _testcppext_add_doc},
- {"test_api_casts", test_api_casts, METH_NOARGS, _Py_NULL},
- {"test_unicode", test_unicode, METH_NOARGS, _Py_NULL},
- {"test_virtual_object", test_virtual_object, METH_NOARGS, _Py_NULL},
- // Note: _testcppext_exec currently runs all test functions directly.
- // When adding a new one, add a call there.
-
- {_Py_NULL, _Py_NULL, 0, _Py_NULL} /* sentinel */
-};
-
-
-static int
-_testcppext_exec(PyObject *module)
-{
- if (PyModule_AddIntMacro(module, __cplusplus) < 0) {
- return -1;
- }
-
- PyObject *result;
-
- result = PyObject_CallMethod(module, "test_api_casts", "");
- if (!result) return -1;
- Py_DECREF(result);
-
- result = PyObject_CallMethod(module, "test_unicode", "");
- if (!result) return -1;
- Py_DECREF(result);
-
- result = PyObject_CallMethod(module, "test_virtual_object", "");
- if (!result) return -1;
- Py_DECREF(result);
-
- return 0;
-}
-
-static PyModuleDef_Slot _testcppext_slots[] = {
- {Py_mod_exec, reinterpret_cast<void*>(_testcppext_exec)},
- {0, _Py_NULL}
-};
-
-
-PyDoc_STRVAR(_testcppext_doc, "C++ test extension.");
-
-static struct PyModuleDef _testcppext_module = {
- PyModuleDef_HEAD_INIT, // m_base
- STR(NAME), // m_name
- _testcppext_doc, // m_doc
- 0, // m_size
- _testcppext_methods, // m_methods
- _testcppext_slots, // m_slots
- _Py_NULL, // m_traverse
- _Py_NULL, // m_clear
- _Py_NULL, // m_free
-};
-
-#define _FUNC_NAME(NAME) PyInit_ ## NAME
-#define FUNC_NAME(NAME) _FUNC_NAME(NAME)
-
-PyMODINIT_FUNC
-FUNC_NAME(NAME)(void)
-{
- return PyModuleDef_Init(&_testcppext_module);
-}
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