include/pybind11/pytypes.h

179     handle(PyObject *ptr) : m_ptr(ptr) { } // Allow implicit conversion from PyObject*
182     PyObject *ptr() const { return m_ptr; }
183     PyObject *&ptr() { return m_ptr; }
190     const handle& inc_ref() const & { Py_XINCREF(m_ptr); return *this; }
197     const handle& dec_ref() const & { Py_XDECREF(m_ptr); return *this; }
205     explicit operator bool() const { return m_ptr != nullptr; }
211     bool operator==(const handle &h) const { return m_ptr == h.m_ptr; }
213     bool operator!=(const handle &h) const { return m_ptr != h.m_ptr; }
215     bool check() const { return m_ptr != nullptr; }
217     PyObject *m_ptr = nullptr;
238     object(object &&other) noexcept { m_ptr = other.m_ptr; other.m_ptr = nullptr; }
248       PyObject *tmp = m_ptr;
249       m_ptr = nullptr;
256         m_ptr = other.m_ptr;
262             handle temp(m_ptr);
263             m_ptr = other.m_ptr;
264             other.m_ptr = nullptr;
786         bool check() const { return m_ptr != nullptr && (bool) CheckFun(m_ptr); } \
794     { if (!m_ptr) throw error_already_set(); } \
797     { if (!m_ptr) throw error_already_set(); } \
844         if (m_ptr && !value.ptr()) {
873         value = reinterpret_steal<object>(PyIter_Next(m_ptr));
894         if (!m_ptr) pybind11_fail("Could not allocate string object!");
900         if (!m_ptr) pybind11_fail("Could not allocate string object!");
915         if (PyUnicode_Check(m_ptr)) {
916             temp = reinterpret_steal<object>(PyUnicode_AsUTF8String(m_ptr));
962         if (!m_ptr) pybind11_fail("Could not allocate bytes object!");
967         if (!m_ptr) pybind11_fail("Could not allocate bytes object!");
978         if (PYBIND11_BYTES_AS_STRING_AND_SIZE(m_ptr, &buffer, &length))
998     m_ptr = obj.release().ptr();
1009     m_ptr = obj.release().ptr();
1032     operator bool() const { return m_ptr && PyLong_AsLong(m_ptr) != 0; }
1075                 m_ptr = PyLong_FromLong((long) value);
1077                 m_ptr = PyLong_FromUnsignedLong((unsigned long) value);
1080                 m_ptr = PyLong_FromLongLong((long long) value);
1082                 m_ptr = PyLong_FromUnsignedLongLong((unsigned long long) value);
1084         if (!m_ptr) pybind11_fail("Could not allocate int object!");
1091             ? detail::as_unsigned<T>(m_ptr)
1093               ? (T) PyLong_AsLong(m_ptr)
1094               : (T) PYBIND11_LONG_AS_LONGLONG(m_ptr);
1103         if (!m_ptr) pybind11_fail("Could not allocate float object!");
1106         if (!m_ptr) pybind11_fail("Could not allocate float object!");
1108     operator float() const { return (float) PyFloat_AsDouble(m_ptr); }
1109     operator double() const { return (double) PyFloat_AsDouble(m_ptr); }
1117         if (!m_ptr) pybind11_fail("Could not allocate weak reference!");
1126         m_ptr = PySlice_New(start.ptr(), stop.ptr(), step.ptr());
1127         if (!m_ptr) pybind11_fail("Could not allocate slice object!");
1131         return PySlice_GetIndicesEx((PYBIND11_SLICE_OBJECT *) m_ptr,
1138       return PySlice_GetIndicesEx((PYBIND11_SLICE_OBJECT *) m_ptr,
1153         if (!m_ptr)
1160         if (!m_ptr)
1165         m_ptr = PyCapsule_New(const_cast<void *>(value), nullptr, [](PyObject *o) {
1171         if (!m_ptr)
1174         if (PyCapsule_SetContext(m_ptr, (void *) destructor) != 0)
1179         m_ptr = PyCapsule_New(reinterpret_cast<void *>(destructor), nullptr, [](PyObject *o) {
1184         if (!m_ptr)
1190         T * result = static_cast<T *>(PyCapsule_GetPointer(m_ptr, name));
1195     const char *name() const { return PyCapsule_GetName(m_ptr); }
1202         if (!m_ptr) pybind11_fail("Could not allocate tuple object!");
1204     size_t size() const { return (size_t) PyTuple_Size(m_ptr); }
1209     detail::tuple_iterator end() const { return {*this, PyTuple_GET_SIZE(m_ptr)}; }
1216         if (!m_ptr) pybind11_fail("Could not allocate dict object!");
1224     size_t size() const { return (size_t) PyDict_Size(m_ptr); }
1230         return PyDict_Contains(m_ptr, detail::object_or_cast(std::forward<T>(key)).ptr()) == 1;
1245     size_t size() const { return (size_t) PySequence_Size(m_ptr); }
1250     detail::sequence_iterator end() const { return {*this, PySequence_Size(m_ptr)}; }
1257         if (!m_ptr) pybind11_fail("Could not allocate list object!");
1259     size_t size() const { return (size_t) PyList_Size(m_ptr); }
1264     detail::list_iterator end() const { return {*this, PyList_GET_SIZE(m_ptr)}; }
1266         PyList_Append(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr());
1269         PyList_Insert(m_ptr, static_cast<ssize_t>(index),
1281         if (!m_ptr) pybind11_fail("Could not allocate set object!");
1283     size_t size() const { return (size_t) PySet_Size(m_ptr); }
1286         return PySet_Add(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr()) == 0;
1288     void clear() const { PySet_Clear(m_ptr); }
1290         return PySet_Contains(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr()) == 1;
1298         handle fun = detail::get_function(m_ptr);
1319         if (PyObject_GetBuffer(m_ptr, view, flags) != 0) {
1351         m_ptr = PyMemoryView_FromBuffer(&buf);
1352         if (!m_ptr)