mirror of https://github.com/python/cpython
gh-101819: Port _io.PyBytesIOBuffer_Type to heap type (#104264)
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@ -671,9 +671,6 @@ static PyTypeObject* static_types[] = {
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&PyBufferedIOBase_Type,
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&PyRawIOBase_Type,
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&PyTextIOBase_Type,
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// PyRawIOBase_Type(PyIOBase_Type) subclasses
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&_PyBytesIOBuffer_Type,
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};
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@ -753,6 +750,7 @@ PyInit__io(void)
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// Base classes
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ADD_TYPE(m, state->PyIncrementalNewlineDecoder_Type, &nldecoder_spec, NULL);
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ADD_TYPE(m, state->PyBytesIOBuffer_Type, &bytesiobuf_spec, NULL);
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// PyIOBase_Type subclasses
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state->PyRawIOBase_Type = (PyTypeObject *)Py_NewRef(&PyRawIOBase_Type);
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@ -771,7 +769,6 @@ PyInit__io(void)
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state->PyBufferedIOBase_Type);
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// PyRawIOBase_Type(PyIOBase_Type) subclasses
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state->PyBytesIOBuffer_Type = (PyTypeObject *)Py_NewRef(&_PyBytesIOBuffer_Type);
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ADD_TYPE(m, state->PyFileIO_Type, &fileio_spec, state->PyRawIOBase_Type);
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#ifdef MS_WINDOWS
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ADD_TYPE(m, state->PyWindowsConsoleIO_Type, &winconsoleio_spec,
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@ -20,6 +20,7 @@ extern PyType_Spec bufferedreader_spec;
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extern PyType_Spec bufferedrwpair_spec;
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extern PyType_Spec bufferedwriter_spec;
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extern PyType_Spec bytesio_spec;
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extern PyType_Spec bytesiobuf_spec;
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extern PyType_Spec fileio_spec;
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extern PyType_Spec nldecoder_spec;
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extern PyType_Spec stringio_spec;
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@ -194,5 +195,3 @@ extern _PyIO_State *_PyIO_get_module_state(void);
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#ifdef HAVE_WINDOWS_CONSOLE_IO
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extern char _PyIO_get_console_type(PyObject *);
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#endif
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extern Py_EXPORTED_SYMBOL PyTypeObject _PyBytesIOBuffer_Type;
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@ -1090,9 +1090,17 @@ bytesiobuf_releasebuffer(bytesiobuf *obj, Py_buffer *view)
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b->exports--;
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}
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static int
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bytesiobuf_clear(bytesiobuf *self)
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{
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Py_CLEAR(self->source);
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return 0;
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}
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static int
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bytesiobuf_traverse(bytesiobuf *self, visitproc visit, void *arg)
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{
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Py_VISIT(Py_TYPE(self));
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Py_VISIT(self->source);
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return 0;
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}
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@ -1100,54 +1108,29 @@ bytesiobuf_traverse(bytesiobuf *self, visitproc visit, void *arg)
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static void
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bytesiobuf_dealloc(bytesiobuf *self)
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{
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PyTypeObject *tp = Py_TYPE(self);
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/* bpo-31095: UnTrack is needed before calling any callbacks */
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PyObject_GC_UnTrack(self);
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Py_CLEAR(self->source);
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Py_TYPE(self)->tp_free(self);
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(void)bytesiobuf_clear(self);
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tp->tp_free(self);
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Py_DECREF(tp);
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}
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static PyBufferProcs bytesiobuf_as_buffer = {
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(getbufferproc) bytesiobuf_getbuffer,
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(releasebufferproc) bytesiobuf_releasebuffer,
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static PyType_Slot bytesiobuf_slots[] = {
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{Py_tp_dealloc, bytesiobuf_dealloc},
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{Py_tp_traverse, bytesiobuf_traverse},
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{Py_tp_clear, bytesiobuf_clear},
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// Buffer protocol
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{Py_bf_getbuffer, bytesiobuf_getbuffer},
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{Py_bf_releasebuffer, bytesiobuf_releasebuffer},
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{0, NULL},
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};
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Py_EXPORTED_SYMBOL PyTypeObject _PyBytesIOBuffer_Type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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"_io._BytesIOBuffer", /*tp_name*/
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sizeof(bytesiobuf), /*tp_basicsize*/
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0, /*tp_itemsize*/
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(destructor)bytesiobuf_dealloc, /*tp_dealloc*/
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0, /*tp_vectorcall_offset*/
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0, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_as_async*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash*/
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0, /*tp_call*/
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0, /*tp_str*/
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0, /*tp_getattro*/
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0, /*tp_setattro*/
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&bytesiobuf_as_buffer, /*tp_as_buffer*/
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /*tp_flags*/
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0, /*tp_doc*/
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(traverseproc)bytesiobuf_traverse, /*tp_traverse*/
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0, /*tp_clear*/
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0, /*tp_richcompare*/
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0, /*tp_weaklistoffset*/
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0, /*tp_iter*/
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0, /*tp_iternext*/
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0, /*tp_methods*/
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0, /*tp_members*/
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0, /*tp_getset*/
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0, /*tp_base*/
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0, /*tp_dict*/
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0, /*tp_descr_get*/
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0, /*tp_descr_set*/
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0, /*tp_dictoffset*/
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0, /*tp_init*/
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0, /*tp_alloc*/
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0, /*tp_new*/
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PyType_Spec bytesiobuf_spec = {
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.name = "_io._BytesIOBuffer",
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.basicsize = sizeof(bytesiobuf),
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.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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Py_TPFLAGS_IMMUTABLETYPE | Py_TPFLAGS_DISALLOW_INSTANTIATION),
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.slots = bytesiobuf_slots,
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};
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@ -318,7 +318,6 @@ Python/instrumentation.c - _PyInstrumentation_MISSING -
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## static types
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Modules/_io/bufferedio.c - PyBufferedIOBase_Type -
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Modules/_io/bytesio.c - _PyBytesIOBuffer_Type -
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Modules/_io/iobase.c - PyIOBase_Type -
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Modules/_io/iobase.c - PyRawIOBase_Type -
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Modules/_io/textio.c - PyTextIOBase_Type -
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