Both the command line and %module options of the same name have been
removed. These were undocumented. The -outputtuple option returned a
Python tuple instead of a list, mostly typically in the OUTPUT
typemap implementations.
It unclear why a tuple instead of a list return type is needed and
hence this option has been removed as part of the simplification of
the SWIG Python command line options for SWIG 4.
Issue #1340.
The -cppcast option is still turned on by default. The -nocppcast option
to turn off the use of c++ casts (const_cast, static_cast etc) has been
removed. However, defining SWIG_NO_CPLUSPLUS_CAST will still generate C casts
instead of C++ casts for C++ wrappers.
This a revert of commit fc79264a48:
"Revert "Remove -cppcast and -nocppcast command line options""
The Scilab and Javascript casting problems are now fixed, so -cppcast
is now switched on as default.
The function pointer typemaps were not being used when the function
pointer is const, like ADD_BY_VALUE_C in the funcptr_cpp.i testcase:
%constant int (* const ADD_BY_VALUE_C)(const int &, int) = addByValue;
Problem affecting Javascript and observable when running test-suite with -cppcast.
The -cppcast option is still turned on by default. The -nocppcast option
to turn off the use of c++ casts (const_cast, static_cast etc) has been
removed. However, defining SWIG_NO_CPLUSPLUS_CAST will still generate C casts
instead of C++ casts for C++ wrappers.
Python fixed many APIs to use const char * instead of char * at around
Python 2.4. As we support 2.7 and later, we can now remove the non-const
string usage.
Types changed:
PyArg_ParseTuple
PyArg_ParseTupleAndKeywords
PyArg_UnpackTuple
PyDict_SetItemString
PyMethodDef
PyModuleDef
SWIG_Python_UnpackTuple
SWIG_Python_str_FromChar
SWIG_addvarlink
swig_const_info
This option, if used, has not had any effect on Python 3 code since commit a863d3 9 years ago.
I think we can assume that it is not needed for Python 3.
Running the examples and test-suite (Python 2) doesn't change the code
paths with and without -safecstrings because only SWIG_OLDOBJ and SWIG_NEWOBJ
are used in the typemaps and the following code is thus unaltered by -safecstrings
(which sets SWIG_PYTHON_SAFE_CSTRINGS):
%#if defined(SWIG_PYTHON_SAFE_CSTRINGS)
if (*alloc != SWIG_OLDOBJ)
%#else
if (*alloc == SWIG_NEWOBJ)
%#endif
{
*cptr = %new_copy_array(cstr, len + 1, char);
*alloc = SWIG_NEWOBJ;
printf("safe strings: %s\n", *cptr ? *cptr : "NULLSTRING");
} else {
*cptr = cstr;
*alloc = SWIG_OLDOBJ;
}
Note: nosafecstrings was also the default and -O didn't actually change this.
A custom implementation for Py_None was implemented in SWIG_Py_None().
This was used by default on Windows only. It isn't clear why this
was done just for Windows. Now Py_None is the real Py_None on all
operating systems.
What SWIG calls "modern" classes are supported by Python 2.3 and up
which means they're supported by all the Python versions we aim to
support in 4.0.0.
Conflicts:
Source/Modules/python.cxx
This is a cherry-pick and merge from the patch in #1261
Activated if a user sets SWIG_JAVA_USE_THREAD_NAME.
Implementations provided for linux/android/macos/unix.
A user's implementation will be used if SWIG_JAVA_GET_THREAD_NAME is
defined. It must implement the function:
namespace Swig {
SWIGINTERN int GetThreadName(char *name, size_t len);
}
Otherwise the native thread name gets clobbered with "Thread-XX", which
makes debugging hard. This issue seems to be specific to the Android JVM.
Someone proposed a similar fix to SWIG:
https://github.com/swig/swig/pull/831
but abandoned it.
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.
An error was not being set if an implicit conversion was attempted
calling an explicit constructor.
Fixes:
Fatal Python error: a function returned NULL without setting an error
SystemError: <built-in function new_A> returned NULL without setting an error
File "Examples/test-suite/python/implicittest.py", line 106 in __init_
- std::unordered_map compilation fix when just using std_unordered_map.i standalone
- std::unordered_multimap compilation fix when just using std_unordered_multimap.i standalone
- Add in the standalone unordered STL test cases
Closes#1319
The previous implementation failed with Python 3 and abstract base clases.
The new implementation replaces the Python 2 implementation using new.instancemethod with C API PyMethod_New to match the equivalent Python 3 implementation which uses PyInstanceMethod_New.
Closes#1310
Further crash fixes when using OUTPUT and INOUT typemaps in typemaps.i and
passing NULL pointers in C++ to director method overloaded and implemented
in Java.
Don't create the one element array in these directorin typemaps if the
input is a NULL pointer, that is, translate a NULL C++ pointer into a
null Java object.
Also add some missing JNI error checks in these typemaps.
