structmember.h inclusion moved for external runtime to work without
requiring users to include structmember.h and the Py_READONLY and
Py_ST_PYSSIZE_T definitions. Including Python.h remains the requirement
for using the external runtime (Examples/python/external_runtime).
Note that stddef.h is not always included by structmember.h
Rename dict to swigdict in PySwigObject for easier identification.
SWIG_HEAPTYPES definition is moved to support both external runtime
and Python Stable ABI.
Rename to use naming conventions used in the Python C code base and
typically used in extensions when creating types:
SwigPyObject_type -> SwigPyObject_Type
SwigPyPacked_type -> SwigPyPacked_Type
swig_varlink_type -> SwigVarLink_Type
to also match other type creating functions SwigPyObjectType_Type
and SwigPyStaticVar_Type.
Add SwigVarLink singleton creation to init function for thread safety.
for default case (they have just been added for -builtin and
SWIG_HEAPTYPES in previous couple of commits).
These are only used by -builtin and were missed when when moving
SwigPyObject, SwigPyPacked and SwigVarLink were added to the swig
runtime module. Should fix potential warnings for these two types:
DeprecationWarning: builtin type has no __module__ attribute
although this has not been seen in the test-suite.
The sq_ass_item slot calls PySequence_SetItem, which can be used to
delete an element by passing a NULL value. Calling Py_INCREF on a NULL
value causes a segfault. This commit adds a NULL check similar to that
in other closure functions.
Signed-off-by: Jim Easterbrook <jim@jim-easterbrook.me.uk>
Fix when using -builtin and wrapping std::map, std::set, std::unordered_map or
std::unordered_set to ensure __contains__ is called. This is a wrapper for the STL
container's find method. Without it, Python will do its own slower sequence search.
The metaclass (SwigPyObjectType) for SWIG objects was not defined in
a way that let importlib successfully import the Python wrappers.
The pickle module failed because it couldn't determine what module the
SWIG wrapped objects are in.
I've changed the definition of SwigPyObjectType using more normal
builtin type definitions. There are still some open questions:
- None of the builtin types, like swig_static_var_getset_descriptor and
SwigPyObject are added into any module. No call to PyModule_AddObject
is made, so isinstance cannot be used for any wrapped type, all of
which are derived from SwigPyObject.
Closes#808
The closure names used for builtin slots are mangled with their functype so
that overloaded C++ method names can be used for multiple slots.
For example:
%feature("python:slot", "mp_subscript", functype="binaryfunc") SimpleArray::__getitem__;
%feature("python:slot", "sq_item", functype="ssizeargfunc") SimpleArray::__getitem__(Py_ssize_t n);
will generate closures:
SWIGPY_SSIZEARGFUNC_CLOSURE(_wrap_SimpleArray___getitem__) /* defines _wrap_SimpleArray___getitem___ssizeargfunc_closure */
SWIGPY_BINARYFUNC_CLOSURE(_wrap_SimpleArray___getitem__) /* defines _wrap_SimpleArray___getitem___binaryfunc_closure */
Default hash is the underlying C/C++ pointer.
This matches up with testing for equivalence (Py_EQ in SwigPyObject_richcompare)
which compares the pointers.
If the wrong return type in the hash function was used, an error:
SystemError: error return without exception set
was raised
Add some tests for testing builtin slots
* coleb-python35_dtor_exception_fix:
Add test case for Python 3.5 assertion with a pending StopIteration
Amend python_destructor_exception runtime test
Call PyErr_WriteUnraisable if a destructor sets a Python exception (-builtin)
Extended zjturner's changes to encompass all function dispatch and use PyErr_WriteUnraisable to handle exceptions during __del__.
Python - Save and restore exception state before calling destroy.
William S Fulton