7a5a3d1ffc
* Fixes spelling of "Allow to" to "Allow one to" and those variants: Allows to -> Allows one to allow to -> allow one to allows to -> allows one to * Fix "Let's -> Lets" (and lower case variant.) * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update src/3rdParty/salomesmesh/inc/MED_Wrapper.hxx Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org> * Update src/Base/PyObjectBase.cpp Update src/App/ExtensionContainer.h Update src/App/PropertyContainer.h Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org> * Use gerund in user-facing texts. * Use gerund for two more user-facing strings. Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org> * Update src/Mod/Fem/App/FemMeshShapeNetgenObject.cpp Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org> * Update src/Mod/Fem/App/FemMeshShapeNetgenObject.cpp Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org> * Update src/Mod/Fem/App/FemMeshShapeNetgenObject.cpp Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org> --------- Co-authored-by: Tobias Frost <tobi@debian.org> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>
587 lines
24 KiB
C++
587 lines
24 KiB
C++
/***************************************************************************
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* Copyright (c) 2002 Jürgen Riegel <juergen.riegel@web.de> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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#include <sstream>
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#endif
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#include "PyObjectBase.h"
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#include "Console.h"
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#include "Interpreter.h"
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#define ATTR_TRACKING
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using namespace Base;
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// clang-format off
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PyObject* Base::PyExc_FC_GeneralError = nullptr;
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PyObject* Base::PyExc_FC_FreeCADAbort = nullptr;
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PyObject* Base::PyExc_FC_XMLBaseException = nullptr;
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PyObject* Base::PyExc_FC_XMLParseException = nullptr;
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PyObject* Base::PyExc_FC_XMLAttributeError = nullptr;
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PyObject* Base::PyExc_FC_UnknownProgramOption = nullptr;
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PyObject* Base::PyExc_FC_BadFormatError = nullptr;
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PyObject* Base::PyExc_FC_BadGraphError = nullptr;
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PyObject* Base::PyExc_FC_ExpressionError = nullptr;
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PyObject* Base::PyExc_FC_ParserError = nullptr;
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PyObject* Base::PyExc_FC_CADKernelError = nullptr;
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PyObject* Base::PyExc_FC_PropertyError = nullptr;
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PyObject* Base::PyExc_FC_AbortIOException = nullptr;
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typedef struct { //NOLINT
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PyObject_HEAD
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PyObject* baseobject;
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PyObject* weakreflist; /* List of weak references */
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} PyBaseProxy;
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// NOLINTNEXTLINE
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PyObjectBase::PyObjectBase(void* voidp, PyTypeObject *T)
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: _pcTwinPointer(voidp)
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{
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#if PY_VERSION_HEX < 0x030b0000
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Py_TYPE(this) = T;
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#else
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this->ob_type = T;
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#endif
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_Py_NewReference(this);
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#ifdef FC_LOGPYOBJECTS
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Base::Console().Log("PyO+: %s (%p)\n",T->tp_name, this);
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#endif
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StatusBits.set(Valid); // valid, the second bit is NOT set, i.e. it's mutable
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StatusBits.set(Notify);
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}
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/// destructor
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PyObjectBase::~PyObjectBase()
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{
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PyGILStateLocker lock;
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#ifdef FC_LOGPYOBJECTS
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Base::Console().Log("PyO-: %s (%p)\n",Py_TYPE(this)->tp_name, this);
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#endif
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
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if (baseProxy && reinterpret_cast<PyBaseProxy*>(baseProxy)->baseobject == this) {
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Py_DECREF(baseProxy);
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}
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Py_XDECREF(attrDict);
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}
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/*------------------------------
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* PyObjectBase Type -- Every class, even the abstract one should have a Type
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------------------------------*/
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/** \brief
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* To prevent subclasses of PyTypeObject to be subclassed in Python we should remove
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* the Py_TPFLAGS_BASETYPE flag. For example, the classes App::VectorPy and App::MatrixPy
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* have removed this flag and its Python proxies App.Vector and App.Matrix cannot be subclassed.
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* In case we want to allow a new class to derive from subclasses of PyTypeObject in Python
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* we must either reimplement tp_new, tp_dealloc, tp_getattr, tp_setattr, tp_repr or set them to
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* 0 and define tp_base as 0.
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*/
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#if defined(__clang__)
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# pragma clang diagnostic push
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# pragma clang diagnostic ignored "-Wdeprecated-declarations"
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#endif
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static void
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PyBaseProxy_dealloc(PyObject* self)
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{
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/* Clear weakrefs first before calling any destructors */
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
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if (reinterpret_cast<PyBaseProxy*>(self)->weakreflist) {
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PyObject_ClearWeakRefs(self);
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}
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Py_TYPE(self)->tp_free(self);
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}
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static PyTypeObject PyBaseProxyType = {
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PyVarObject_HEAD_INIT(nullptr, 0)
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"PyBaseProxy", /*tp_name*/
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sizeof(PyBaseProxy), /*tp_basicsize*/
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0, /*tp_itemsize*/
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PyBaseProxy_dealloc, /*tp_dealloc*/
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#if PY_VERSION_HEX >= 0x03080000
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0, /*tp_vectorcall_offset*/
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#else
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nullptr, /*tp_print*/
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#endif
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nullptr, /*tp_getattr*/
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nullptr, /*tp_setattr*/
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nullptr, /*tp_compare*/
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nullptr, /*tp_repr*/
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nullptr, /*tp_as_number*/
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nullptr, /*tp_as_sequence*/
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nullptr, /*tp_as_mapping*/
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nullptr, /*tp_hash*/
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nullptr, /*tp_call */
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nullptr, /*tp_str */
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nullptr, /*tp_getattro*/
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nullptr, /*tp_setattro*/
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nullptr, /*tp_as_buffer*/
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Py_TPFLAGS_BASETYPE | Py_TPFLAGS_DEFAULT, /*tp_flags */
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"Proxy class", /*tp_doc */
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nullptr, /*tp_traverse */
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nullptr, /*tp_clear */
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nullptr, /*tp_richcompare */
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offsetof(PyBaseProxy, weakreflist), /*tp_weaklistoffset */
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nullptr, /*tp_iter */
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nullptr, /*tp_iternext */
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nullptr, /*tp_methods */
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nullptr, /*tp_members */
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nullptr, /*tp_getset */
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nullptr, /*tp_base */
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nullptr, /*tp_dict */
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nullptr, /*tp_descr_get */
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nullptr, /*tp_descr_set */
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0, /*tp_dictoffset */
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nullptr, /*tp_init */
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nullptr, /*tp_alloc */
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nullptr, /*tp_new */
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nullptr, /*tp_free Low-level free-memory routine */
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nullptr, /*tp_is_gc For PyObject_IS_GC */
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nullptr, /*tp_bases */
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nullptr, /*tp_mro method resolution order */
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nullptr, /*tp_cache */
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nullptr, /*tp_subclasses */
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nullptr, /*tp_weaklist */
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nullptr, /*tp_del */
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0, /*tp_version_tag */
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nullptr /*tp_finalize */
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#if PY_VERSION_HEX >= 0x03090000
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,0 //NOLINT /*tp_vectorcall */
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#if PY_VERSION_HEX >= 0x030c0000
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,0 /*tp_watched */
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#endif
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#elif PY_VERSION_HEX >= 0x03080000
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,0 /*tp_vectorcall */
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/* bpo-37250: kept for backwards compatibility in CPython 3.8 only */
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,0 /*tp_print */
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#endif
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};
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PyTypeObject PyObjectBase::Type = {
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PyVarObject_HEAD_INIT(&PyType_Type,0)
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"PyObjectBase", /*tp_name*/
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sizeof(PyObjectBase), /*tp_basicsize*/
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0, /*tp_itemsize*/
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/* --- methods ---------------------------------------------- */
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PyDestructor, /*tp_dealloc*/
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#if PY_VERSION_HEX >= 0x03080000
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0, /*tp_vectorcall_offset*/
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#else
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nullptr, /*tp_print*/
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#endif
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nullptr, /*tp_getattr*/
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nullptr, /*tp_setattr*/
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nullptr, /*tp_compare*/
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__repr, /*tp_repr*/
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nullptr, /*tp_as_number*/
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nullptr, /*tp_as_sequence*/
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nullptr, /*tp_as_mapping*/
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nullptr, /*tp_hash*/
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nullptr, /*tp_call */
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nullptr, /*tp_str */
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__getattro, /*tp_getattro*/
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__setattro, /*tp_setattro*/
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/* --- Functions to access object as input/output buffer ---------*/
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nullptr, /* tp_as_buffer */
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/* --- Flags to define presence of optional/expanded features */
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Py_TPFLAGS_BASETYPE|Py_TPFLAGS_DEFAULT, /*tp_flags */
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"The most base class for Python binding", /*tp_doc */
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nullptr, /*tp_traverse */
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nullptr, /*tp_clear */
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nullptr, /*tp_richcompare */
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0, /*tp_weaklistoffset */
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nullptr, /*tp_iter */
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nullptr, /*tp_iternext */
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nullptr, /*tp_methods */
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nullptr, /*tp_members */
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nullptr, /*tp_getset */
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nullptr, /*tp_base */
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nullptr, /*tp_dict */
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nullptr, /*tp_descr_get */
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nullptr, /*tp_descr_set */
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0, /*tp_dictoffset */
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nullptr, /*tp_init */
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nullptr, /*tp_alloc */
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nullptr, /*tp_new */
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nullptr, /*tp_free Low-level free-memory routine */
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nullptr, /*tp_is_gc For PyObject_IS_GC */
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nullptr, /*tp_bases */
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nullptr, /*tp_mro method resolution order */
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nullptr, /*tp_cache */
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nullptr, /*tp_subclasses */
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nullptr, /*tp_weaklist */
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nullptr, /*tp_del */
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0, /*tp_version_tag */
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nullptr /*tp_finalize */
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#if PY_VERSION_HEX >= 0x03090000
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,0 //NOLINT /*tp_vectorcall */
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#if PY_VERSION_HEX >= 0x030c0000
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,0 /*tp_watched */
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#endif
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#elif PY_VERSION_HEX >= 0x03080000
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,0 /*tp_vectorcall */
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/* bpo-37250: kept for backwards compatibility in CPython 3.8 only */
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,0 /*tp_print */
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#endif
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};
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#if defined(__clang__)
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# pragma clang diagnostic pop
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#endif
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PyObject* createWeakRef(PyObjectBase* ptr)
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{
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static bool init = false;
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if (!init) {
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init = true;
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if (PyType_Ready(&PyBaseProxyType) < 0) {
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return nullptr;
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}
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}
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PyObject* proxy = ptr->baseProxy;
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if (!proxy) {
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proxy = PyType_GenericAlloc(&PyBaseProxyType, 0);
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ptr->baseProxy = proxy;
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
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reinterpret_cast<PyBaseProxy*>(proxy)->baseobject = ptr;
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}
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PyObject* ref = PyWeakref_NewRef(proxy, nullptr);
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return ref;
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}
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PyObjectBase* getFromWeakRef(PyObject* ref)
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{
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if (ref) {
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PyObject* proxy = PyWeakref_GetObject(ref);
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if (proxy && PyObject_TypeCheck(proxy, &PyBaseProxyType)) {
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
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return static_cast<PyObjectBase*>(reinterpret_cast<PyBaseProxy*>(proxy)->baseobject);
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}
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}
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return nullptr;
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}
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/*------------------------------
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* PyObjectBase Methods -- Every class, even the abstract one should have a Methods
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------------------------------*/
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PyMethodDef PyObjectBase::Methods[] = {
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{nullptr, nullptr, 0, nullptr} /* Sentinel */
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};
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PyObject* PyObjectBase::__getattro(PyObject * obj, PyObject *attro)
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{
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const char *attr{};
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attr = PyUnicode_AsUTF8(attro);
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// For the __class__ attribute get it directly as with
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// ExtensionContainerPy::getCustomAttributes we may get
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// the wrong type object (#0003311)
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if (streq(attr, "__class__")) {
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PyObject* res = PyObject_GenericGetAttr(obj, attro);
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if (res) {
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return res;
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}
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}
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// This should be the entry in Type
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PyObjectBase* pyObj = static_cast<PyObjectBase*>(obj);
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if (!pyObj->isValid()){
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PyErr_Format(PyExc_ReferenceError, "Cannot access attribute '%s' of deleted object", attr);
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return nullptr;
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}
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#ifdef ATTR_TRACKING
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// If an attribute references this as parent then reset it (bug #0002902)
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PyObject* cur = pyObj->getTrackedAttribute(attr);
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if (cur) {
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if (PyObject_TypeCheck(cur, &(PyObjectBase::Type))) {
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PyObjectBase* base = static_cast<PyObjectBase*>(cur);
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base->resetAttribute();
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pyObj->untrackAttribute(attr);
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}
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}
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#endif
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PyObject* value = pyObj->_getattr(attr);
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#ifdef ATTR_TRACKING
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if (value && PyObject_TypeCheck(value, &(PyObjectBase::Type))) {
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if (!static_cast<PyObjectBase*>(value)->isConst() &&
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!static_cast<PyObjectBase*>(value)->isNotTracking()) {
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static_cast<PyObjectBase*>(value)->setAttributeOf(attr, pyObj);
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pyObj->trackAttribute(attr, value);
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}
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}
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else
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#endif
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if (value && PyCFunction_Check(value)) {
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// ExtensionContainerPy::initialization() transfers the methods of an
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// extension object by creating PyCFunction objects.
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// At this point no 'self' object is passed but is handled and determined
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// in ExtensionContainerPy::getCustomAttributes().
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// So, if we come through this section then it's an indication that
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// something is wrong with the Python types. For example, a C++ class
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// that adds an extension uses the same Python type as a wrapper than
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// another C++ class without this extension.
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
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PyCFunctionObject* cfunc = reinterpret_cast<PyCFunctionObject*>(value);
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if (!cfunc->m_self) {
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Py_DECREF(cfunc);
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value = nullptr;
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PyErr_Format(PyExc_AttributeError, "<no object bound to built-in method %s>", attr);
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}
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}
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return value;
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}
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int PyObjectBase::__setattro(PyObject *obj, PyObject *attro, PyObject *value)
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{
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const char *attr{};
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attr = PyUnicode_AsUTF8(attro);
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//Hint: In general we don't allow one to delete attributes (i.e. value=0). However, if we want to allow
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//we must check then in _setattr() of all subclasses whether value is 0.
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if (!value) {
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PyErr_Format(PyExc_AttributeError, "Cannot delete attribute: '%s'", attr);
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return -1;
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}
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if (!static_cast<PyObjectBase*>(obj)->isValid()){
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PyErr_Format(PyExc_ReferenceError, "Cannot access attribute '%s' of deleted object", attr);
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return -1;
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}
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#ifdef ATTR_TRACKING
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// If an attribute references this as parent then reset it
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// before setting the new attribute
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PyObject* cur = static_cast<PyObjectBase*>(obj)->getTrackedAttribute(attr);
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if (cur) {
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if (PyObject_TypeCheck(cur, &(PyObjectBase::Type))) {
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PyObjectBase* base = static_cast<PyObjectBase*>(cur);
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base->resetAttribute();
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static_cast<PyObjectBase*>(obj)->untrackAttribute(attr);
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}
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}
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#endif
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int ret = static_cast<PyObjectBase*>(obj)->_setattr(attr, value);
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#ifdef ATTR_TRACKING
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if (ret == 0) {
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static_cast<PyObjectBase*>(obj)->startNotify();
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}
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#endif
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return ret;
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}
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/*------------------------------
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* PyObjectBase attributes -- attributes
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------------------------------*/
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PyObject *PyObjectBase::_getattr(const char *attr)
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{
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if (streq(attr, "__class__")) {
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// Note: We must return the type object here,
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// so that our own types feel as really Python objects
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Py_INCREF(Py_TYPE(this));
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
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return reinterpret_cast<PyObject *>(Py_TYPE(this));
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}
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if (streq(attr, "__members__")) {
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// Use __dict__ instead as __members__ is deprecated
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return nullptr;
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}
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if (streq(attr,"__dict__")) {
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// Return the default dict
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PyTypeObject *tp = Py_TYPE(this);
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Py_XINCREF(tp->tp_dict);
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return tp->tp_dict;
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}
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if (streq(attr,"softspace")) {
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// Internal Python stuff
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return nullptr;
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}
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// As fallback solution use Python's default method to get generic attributes
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PyObject *w{}, *res{};
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w = PyUnicode_InternFromString(attr);
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if (w) {
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res = PyObject_GenericGetAttr(this, w);
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Py_XDECREF(w);
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return res;
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}
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// Throw an exception for unknown attributes
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PyTypeObject *tp = Py_TYPE(this);
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PyErr_Format(PyExc_AttributeError, "%.50s instance has no attribute '%.400s'", tp->tp_name, attr);
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return nullptr;
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}
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int PyObjectBase::_setattr(const char *attr, PyObject *value)
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{
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if (streq(attr,"softspace")) {
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return -1; // filter out softspace
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}
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PyObject *w{};
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// As fallback solution use Python's default method to get generic attributes
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w = PyUnicode_InternFromString(attr); // new reference
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if (w) {
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// call methods from tp_getset if defined
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int res = PyObject_GenericSetAttr(this, w, value);
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Py_DECREF(w);
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return res;
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}
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// Throw an exception for unknown attributes
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PyTypeObject *tp = Py_TYPE(this);
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|
PyErr_Format(PyExc_AttributeError, "%.50s instance has no attribute '%.400s'", tp->tp_name, attr);
|
|
return -1;
|
|
}
|
|
|
|
/*------------------------------
|
|
* PyObjectBase repr representations
|
|
------------------------------*/
|
|
PyObject *PyObjectBase::_repr()
|
|
{
|
|
std::stringstream a;
|
|
a << "<base object at " << _pcTwinPointer << ">";
|
|
# ifdef FCDebug
|
|
Console().Log("PyObjectBase::_repr() not overwritten representation!");
|
|
# endif
|
|
return Py_BuildValue("s", a.str().c_str());
|
|
}
|
|
|
|
// Tracking functions
|
|
|
|
void PyObjectBase::resetAttribute()
|
|
{
|
|
if (attrDict) {
|
|
// This is the attribute name to the parent structure
|
|
// which we search for in the dict
|
|
PyObject* key1 = PyBytes_FromString("__attribute_of_parent__");
|
|
PyObject* key2 = PyBytes_FromString("__instance_of_parent__");
|
|
PyObject* attr = PyDict_GetItem(attrDict, key1);
|
|
PyObject* inst = PyDict_GetItem(attrDict, key2);
|
|
if (attr) {
|
|
PyDict_DelItem(attrDict, key1);
|
|
}
|
|
if (inst) {
|
|
PyDict_DelItem(attrDict, key2);
|
|
}
|
|
Py_DECREF(key1);
|
|
Py_DECREF(key2);
|
|
}
|
|
}
|
|
|
|
void PyObjectBase::setAttributeOf(const char* attr, PyObject* par)
|
|
{
|
|
if (!attrDict) {
|
|
attrDict = PyDict_New();
|
|
}
|
|
|
|
PyObject* key1 = PyBytes_FromString("__attribute_of_parent__");
|
|
PyObject* key2 = PyBytes_FromString("__instance_of_parent__");
|
|
PyObject* attro = PyUnicode_FromString(attr);
|
|
PyDict_SetItem(attrDict, key1, attro);
|
|
PyDict_SetItem(attrDict, key2, par);
|
|
Py_DECREF(attro);
|
|
Py_DECREF(key1);
|
|
Py_DECREF(key2);
|
|
}
|
|
|
|
void PyObjectBase::startNotify()
|
|
{
|
|
if (!shouldNotify()) {
|
|
return;
|
|
}
|
|
|
|
if (attrDict) {
|
|
// This is the attribute name to the parent structure
|
|
// which we search for in the dict
|
|
PyObject* key1 = PyBytes_FromString("__attribute_of_parent__");
|
|
PyObject* key2 = PyBytes_FromString("__instance_of_parent__");
|
|
PyObject* attr = PyDict_GetItem(attrDict, key1);
|
|
PyObject* parent = PyDict_GetItem(attrDict, key2);
|
|
if (attr && parent) {
|
|
// Inside __setattr of the parent structure the 'attr'
|
|
// is being removed from the dict and thus its reference
|
|
// counter will be decremented. To avoid to be deleted we
|
|
// must tmp. increment it and afterwards decrement it again.
|
|
Py_INCREF(parent);
|
|
Py_INCREF(attr);
|
|
Py_INCREF(this);
|
|
|
|
__setattro(parent, attr, this);
|
|
|
|
Py_DECREF(parent); // might be destroyed now
|
|
Py_DECREF(attr); // might be destroyed now
|
|
Py_DECREF(this); // might be destroyed now
|
|
|
|
if (PyErr_Occurred()) {
|
|
PyErr_Clear();
|
|
}
|
|
}
|
|
Py_DECREF(key1);
|
|
Py_DECREF(key2);
|
|
}
|
|
}
|
|
|
|
PyObject* PyObjectBase::getTrackedAttribute(const char* attr)
|
|
{
|
|
PyObject* obj = nullptr;
|
|
if (attrDict) {
|
|
obj = PyDict_GetItemString(attrDict, attr);
|
|
obj = getFromWeakRef(obj);
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
void PyObjectBase::trackAttribute(const char* attr, PyObject* obj)
|
|
{
|
|
if (!attrDict) {
|
|
attrDict = PyDict_New();
|
|
}
|
|
|
|
PyObject* obj_ref = createWeakRef(static_cast<PyObjectBase*>(obj));
|
|
if (obj_ref) {
|
|
PyDict_SetItemString(attrDict, attr, obj_ref);
|
|
}
|
|
}
|
|
|
|
void PyObjectBase::untrackAttribute(const char* attr)
|
|
{
|
|
if (attrDict) {
|
|
PyDict_DelItemString(attrDict, attr);
|
|
}
|
|
}
|
|
|
|
void PyObjectBase::clearAttributes()
|
|
{
|
|
if (attrDict) {
|
|
PyDict_Clear(attrDict);
|
|
}
|
|
}
|
|
// clang-format on
|