Removed the old patch files for swig

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15315 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn 2002-04-30 04:26:02 +00:00
parent bee7191838
commit 322a3817ea
6 changed files with 0 additions and 696 deletions

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@ -1,21 +0,0 @@
Some minor tweaks were made to pyexp.swg and typemaps.i to allow
wxPython to build with Python 1.6. Just put these in your
swig_lib/python dir and you'll be all set. These are from SWIG
1.1-883.
Additionally, there are some patches for SWIG sources that are needed
for wxPython:
1. python.cxx.patch, applied to .../Modules/python.cxx file will
prevent the out typemap from being used on constructors.
2. cplus.cxx.patch, applied to .../SWIG/cplus.cxx will prevent
some redundant code from being emitted to the extension
module.
3. pycpp.cxx.patch, applied to .../Modules/pycpp.cxx will add
support for the addtomethod pragma for renamed constructors.

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@ -1,37 +0,0 @@
*** SWIG\cplus.cxx.orig Fri May 18 13:03:34 2001
--- SWIG\cplus.cxx Fri May 18 13:07:42 2001
***************
*** 839,845 ****
if (name) {
if (strlen(name)) {
! if (strlen(ctype) > 0) {
sprintf(temp,"%s %s", ctype, name);
typeeq_derived(temp,name); // Map "struct foo" to "foo"
typeeq_derived(name,temp); // Map "foo" to "struct foo"
--- 839,845 ----
if (name) {
if (strlen(name)) {
! if (strlen(ctype) > 0 && strcmp(ctype, "class") != 0) {
sprintf(temp,"%s %s", ctype, name);
typeeq_derived(temp,name); // Map "struct foo" to "foo"
typeeq_derived(name,temp); // Map "foo" to "struct foo"
***************
*** 1092,1098 ****
// Make a type-equivalence allowing derived classes to be used in functions of the
! if (strlen(current_class->classtype) > 0) {
temp1 = "";
temp1 << current_class->classtype << " " << current_class->classname;
temp2 = "";
--- 1092,1099 ----
// Make a type-equivalence allowing derived classes to be used in functions of the
! if (strlen(current_class->classtype) > 0 &&
! strcmp(current_class->classtype, "class") != 0) {
temp1 = "";
temp1 << current_class->classtype << " " << current_class->classname;
temp2 = "";

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@ -1,22 +0,0 @@
*** Modules/pycpp.cxx.orig Fri Oct 12 16:37:36 2001
--- Modules/pycpp.cxx Fri Oct 12 16:38:20 2001
***************
*** 228,235 ****
*additional << "def " << realname << "(*_args,**_kwargs):\n";
*additional << tab4 << "val = " << class_name << "Ptr(apply("
<< module << "." << name_construct(realname) << ",_args,_kwargs))\n"
! << tab4 << "val.thisown = 1\n"
! << tab4 << "return val\n\n";
}
// Patch up the documentation entry
if (doc_entry) {
--- 228,236 ----
*additional << "def " << realname << "(*_args,**_kwargs):\n";
*additional << tab4 << "val = " << class_name << "Ptr(apply("
<< module << "." << name_construct(realname) << ",_args,_kwargs))\n"
! << tab4 << "val.thisown = 1\n";
! emitAddPragmas(*additional, realname, tab4);
! *additional << tab4 << "return val\n\n";
}
// Patch up the documentation entry
if (doc_entry) {

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@ -1,32 +0,0 @@
#include <string.h>
#include <stdlib.h>
/* Definitions for Windows/Unix exporting */
#if defined(__WIN32__)
# if defined(_MSC_VER)
# define SWIGEXPORT(a) __declspec(dllexport) a
# else
# if defined(__BORLANDC__)
# define SWIGEXPORT(a) a _export
# else
# define SWIGEXPORT(a) a
# endif
# endif
#else
# define SWIGEXPORT(a) a
#endif
#include "Python.h"
#ifdef __cplusplus
extern "C" {
#endif
extern void SWIG_MakePtr(char *, void *, char *);
extern void SWIG_RegisterMapping(char *, char *, void *(*)(void *));
extern char *SWIG_GetPtr(char *, void **, char *);
extern char *SWIG_GetPtrObj(PyObject *, void **, char *);
extern void SWIG_addvarlink(PyObject *, char *, PyObject *(*)(void), int (*)(PyObject *));
extern PyObject *SWIG_newvarlink(void);
#ifdef __cplusplus
}
#endif

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@ -1,20 +0,0 @@
*** Modules\python.cxx.orig Fri May 11 16:04:01 2001
--- Modules\python.cxx Fri May 11 16:14:08 2001
***************
*** 879,885 ****
// If there was a result, it was saved in _result.
// If the function is a void type, don't do anything.
! if ((tm = typemap_lookup("out","python",d,iname,"_result","_resultobj"))) {
// Yep. Use it instead of the default
f.code << tm << "\n";
} else {
--- 879,886 ----
// If there was a result, it was saved in _result.
// If the function is a void type, don't do anything.
! if ((strncmp(name, "new_", 4) != 0) && // don't use the out typemap for constructors
! (tm = typemap_lookup("out","python",d,iname,"_result","_resultobj"))) {
// Yep. Use it instead of the default
f.code << tm << "\n";
} else {

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@ -1,564 +0,0 @@
//
// SWIG Typemap library
// Dave Beazley
// May 5, 1997
//
// Python implementation
//
// This library provides standard typemaps for modifying SWIG's behavior.
// With enough entries in this file, I hope that very few people actually
// ever need to write a typemap.
//
// Disclaimer : Unless you really understand how typemaps work, this file
// probably isn't going to make much sense.
//
#ifdef AUTODOC
%section "Typemap Library (Python)",info,after,pre,nosort,skip=1,chop_left=3,chop_right=0,chop_top=0,chop_bottom=0
%text %{
%include typemaps.i
The SWIG typemap library provides a language independent mechanism for
supporting output arguments, input values, and other C function
calling mechanisms. The primary use of the library is to provide a
better interface to certain C function--especially those involving
pointers.
%}
#endif
// ------------------------------------------------------------------------
// Pointer handling
//
// These mappings provide support for input/output arguments and common
// uses for C/C++ pointers.
// ------------------------------------------------------------------------
// INPUT typemaps.
// These remap a C pointer to be an "INPUT" value which is passed by value
// instead of reference.
#ifdef AUTODOC
%subsection "Input Methods"
%text %{
The following methods can be applied to turn a pointer into a simple
"input" value. That is, instead of passing a pointer to an object,
you would use a real value instead.
int *INPUT
short *INPUT
long *INPUT
unsigned int *INPUT
unsigned short *INPUT
unsigned long *INPUT
unsigned char *INPUT
float *INPUT
double *INPUT
To use these, suppose you had a C function like this :
double fadd(double *a, double *b) {
return *a+*b;
}
You could wrap it with SWIG as follows :
%include typemaps.i
double fadd(double *INPUT, double *INPUT);
or you can use the %apply directive :
%include typemaps.i
%apply double *INPUT { double *a, double *b };
double fadd(double *a, double *b);
%}
#endif
%typemap(python,in) double *INPUT(double temp)
{
temp = PyFloat_AsDouble($source);
$target = &temp;
}
%typemap(python,in) float *INPUT(float temp)
{
temp = (float) PyFloat_AsDouble($source);
$target = &temp;
}
%typemap(python,in) int *INPUT(int temp)
{
temp = (int) PyInt_AsLong($source);
$target = &temp;
}
%typemap(python,in) short *INPUT(short temp)
{
temp = (short) PyInt_AsLong($source);
$target = &temp;
}
%typemap(python,in) long *INPUT(long temp)
{
temp = (long) PyInt_AsLong($source);
$target = &temp;
}
%typemap(python,in) unsigned int *INPUT(unsigned int temp)
{
temp = (unsigned int) PyInt_AsLong($source);
$target = &temp;
}
%typemap(python,in) unsigned short *INPUT(unsigned short temp)
{
temp = (unsigned short) PyInt_AsLong($source);
$target = &temp;
}
%typemap(python,in) unsigned long *INPUT(unsigned long temp)
{
temp = (unsigned long) PyInt_AsLong($source);
$target = &temp;
}
%typemap(python,in) unsigned char *INPUT(unsigned char temp)
{
temp = (unsigned char) PyInt_AsLong($source);
$target = &temp;
}
%typemap(python,in) signed char *INPUT(signed char temp)
{
temp = (unsigned char) PyInt_AsLong($source);
$target = &temp;
}
// OUTPUT typemaps. These typemaps are used for parameters that
// are output only. The output value is appended to the result as
// a list element.
#ifdef AUTODOC
%subsection "Output Methods"
%text %{
The following methods can be applied to turn a pointer into an "output"
value. When calling a function, no input value would be given for
a parameter, but an output value would be returned. In the case of
multiple output values, they are returned in the form of a Python tuple.
int *OUTPUT
short *OUTPUT
long *OUTPUT
unsigned int *OUTPUT
unsigned short *OUTPUT
unsigned long *OUTPUT
unsigned char *OUTPUT
float *OUTPUT
double *OUTPUT
A Python List can also be returned by using L_OUTPUT instead of OUTPUT.
For example, suppose you were trying to wrap the modf() function in the
C math library which splits x into integral and fractional parts (and
returns the integer part in one of its parameters).K:
double modf(double x, double *ip);
You could wrap it with SWIG as follows :
%include typemaps.i
double modf(double x, double *OUTPUT);
or you can use the %apply directive :
%include typemaps.i
%apply double *OUTPUT { double *ip };
double modf(double x, double *ip);
The Python output of the function would be a tuple containing both
output values.
%}
#endif
// I don't use this anywhere, get rid of it...
// Helper function for List output
// static PyObject* l_output_helper(PyObject* target, PyObject* o) {
// PyObject* o2;
// if (!target) {
// target = o;
// } else if (target == Py_None) {
// Py_DECREF(Py_None);
// target = o;
// } else {
// if (!PyList_Check(target)) {
// o2 = target;
// target = PyList_New(0);
// PyList_Append(target, o2);
// Py_XDECREF(o2);
// }
// PyList_Append(target,o);
// Py_XDECREF(o);
// }
// return target;
// }
%{
%}
// Force the argument to be ignored.
%typemap(python,ignore) int *L_OUTPUT(int temp),
short *L_OUTPUT(short temp),
long *L_OUTPUT(long temp),
unsigned int *L_OUTPUT(unsigned int temp),
unsigned short *L_OUTPUT(unsigned short temp),
unsigned long *L_OUTPUT(unsigned long temp),
unsigned char *L_OUTPUT(unsigned char temp),
signed char *L_OUTPUT(signed char temp),
float *L_OUTPUT(float temp),
double *L_OUTPUT(double temp)
{
$target = &temp;
}
%typemap(python,argout) int *L_OUTPUT,
short *L_OUTPUT,
long *L_OUTPUT,
unsigned int *L_OUTPUT,
unsigned short *L_OUTPUT,
unsigned long *L_OUTPUT,
unsigned char *L_OUTPUT,
signed char *L_OUTPUT
{
PyObject *o;
o = PyInt_FromLong((long) (*$source));
l_output_helper($target,o);
}
%typemap(python,argout) float *L_OUTPUT,
double *L_OUTPUT
{
PyObject *o;
o = PyFloat_FromDouble((double) (*$source));
$target = l_output_helper($target,o);
}
// These typemaps contributed by Robin Dunn
//----------------------------------------------------------------------
//
// T_OUTPUT typemap (and helper function) to return multiple argouts as
// a tuple instead of a list.
//
// Author: Robin Dunn
//----------------------------------------------------------------------
%{
static PyObject* t_output_helper(PyObject* target, PyObject* o) {
PyObject* o2;
PyObject* o3;
if (!target) {
target = o;
} else if (target == Py_None) {
Py_DECREF(Py_None);
target = o;
} else {
if (!PyTuple_Check(target)) {
o2 = target;
target = PyTuple_New(1);
PyTuple_SetItem(target, 0, o2);
}
o3 = PyTuple_New(1);
PyTuple_SetItem(o3, 0, o);
o2 = target;
target = PySequence_Concat(o2, o3);
Py_DECREF(o2);
Py_DECREF(o3);
}
return target;
}
%}
// Force the argument to be ignored.
%typemap(python,ignore) int *T_OUTPUT(int temp),
short *T_OUTPUT(short temp),
long *T_OUTPUT(long temp),
unsigned int *T_OUTPUT(unsigned int temp),
unsigned short *T_OUTPUT(unsigned short temp),
unsigned long *T_OUTPUT(unsigned long temp),
unsigned char *T_OUTPUT(unsigned char temp),
float *T_OUTPUT(float temp),
double *T_OUTPUT(double temp)
{
$target = &temp;
}
%typemap(python,argout) int *T_OUTPUT,
short *T_OUTPUT,
long *T_OUTPUT,
unsigned int *T_OUTPUT,
unsigned short *T_OUTPUT,
unsigned long *T_OUTPUT,
unsigned char *T_OUTPUT
{
PyObject *o;
o = PyInt_FromLong((long) (*$source));
$target = t_output_helper($target, o);
}
%typemap(python,argout) float *T_OUTPUT,
double *T_OUTPUT
{
PyObject *o;
o = PyFloat_FromDouble((double) (*$source));
$target = t_output_helper($target, o);
}
// Set the default output typemap
#ifdef OUTPUT_LIST
%typemap(python,ignore) int *OUTPUT = int *L_OUTPUT;
%typemap(python,ignore) short *OUTPUT = short *L_OUTPUT;
%typemap(python,ignore) long *OUTPUT = long *L_OUTPUT;
%typemap(python,ignore) unsigned *OUTPUT = unsigned *L_OUTPUT;
%typemap(python,ignore) unsigned short *OUTPUT = unsigned short *L_OUTPUT;
%typemap(python,ignore) unsigned long *OUTPUT = unsigned long *L_OUTPUT;
%typemap(python,ignore) unsigned char *OUTPUT = unsigned char *L_OUTPUT;
%typemap(python,ignore) signed char *OUTPUT = signed char *L_OUTPUT;
%typemap(python,ignore) double *OUTPUT = double *L_OUTPUT;
%typemap(python,ignore) float *OUTPUT = float *L_OUTPUT;
%typemap(python,argout) int *OUTPUT = int *L_OUTPUT;
%typemap(python,argout) short *OUTPUT = short *L_OUTPUT;
%typemap(python,argout) long *OUTPUT = long *L_OUTPUT;
%typemap(python,argout) unsigned *OUTPUT = unsigned *L_OUTPUT;
%typemap(python,argout) unsigned short *OUTPUT = unsigned short *L_OUTPUT;
%typemap(python,argout) unsigned long *OUTPUT = unsigned long *L_OUTPUT;
%typemap(python,argout) unsigned char *OUTPUT = unsigned char *L_OUTPUT;
%typemap(python,argout) signed char *OUTPUT = signed char *L_OUTPUT;
%typemap(python,argout) double *OUTPUT = double *L_OUTPUT;
%typemap(python,argout) float *OUTPUT = float *L_OUTPUT;
#else
%typemap(python,ignore) int *OUTPUT = int *T_OUTPUT;
%typemap(python,ignore) short *OUTPUT = short *T_OUTPUT;
%typemap(python,ignore) long *OUTPUT = long *T_OUTPUT;
%typemap(python,ignore) unsigned *OUTPUT = unsigned *T_OUTPUT;
%typemap(python,ignore) unsigned short *OUTPUT = unsigned short *T_OUTPUT;
%typemap(python,ignore) unsigned long *OUTPUT = unsigned long *T_OUTPUT;
%typemap(python,ignore) unsigned char *OUTPUT = unsigned char *T_OUTPUT;
%typemap(python,ignore) signed char *OUTPUT = signed char *T_OUTPUT;
%typemap(python,ignore) double *OUTPUT = double *T_OUTPUT;
%typemap(python,ignore) float *OUTPUT = float *T_OUTPUT;
%typemap(python,argout) int *OUTPUT = int *T_OUTPUT;
%typemap(python,argout) short *OUTPUT = short *T_OUTPUT;
%typemap(python,argout) long *OUTPUT = long *T_OUTPUT;
%typemap(python,argout) unsigned *OUTPUT = unsigned *T_OUTPUT;
%typemap(python,argout) unsigned short *OUTPUT = unsigned short *T_OUTPUT;
%typemap(python,argout) unsigned long *OUTPUT = unsigned long *T_OUTPUT;
%typemap(python,argout) unsigned char *OUTPUT = unsigned char *T_OUTPUT;
%typemap(python,argout) signed char *OUTPUT = signed char *T_OUTPUT;
%typemap(python,argout) double *OUTPUT = double *T_OUTPUT;
%typemap(python,argout) float *OUTPUT = float *T_OUTPUT;
#endif
// INOUT
// Mappings for an argument that is both an input and output
// parameter
#ifdef AUTODOC
%subsection "Input/Output Methods"
%text %{
The following methods can be applied to make a function parameter both
an input and output value. This combines the behavior of both the
"INPUT" and "OUTPUT" methods described earlier. Output values are
returned in the form of a Python tuple. To return a Python list,
using L_INOUT instead.
int *INOUT
short *INOUT
long *INOUT
unsigned int *INOUT
unsigned short *INOUT
unsigned long *INOUT
unsigned char *INOUT
float *INOUT
double *INOUT
For example, suppose you were trying to wrap the following function :
void neg(double *x) {
*x = -(*x);
}
You could wrap it with SWIG as follows :
%include typemaps.i
void neg(double *INOUT);
or you can use the %apply directive :
%include typemaps.i
%apply double *INOUT { double *x };
void neg(double *x);
Unlike C, this mapping does not directly modify the input value (since
this makes no sense in Python). Rather, the modified input value shows
up as the return value of the function. Thus, to apply this function
to a Python variable you might do this :
x = neg(x)
Note : previous versions of SWIG used the symbol 'BOTH' to mark
input/output arguments. This is still supported, but will be slowly
phased out in future releases.
%}
#endif
%typemap(python,in) int *INOUT = int *INPUT;
%typemap(python,in) short *INOUT = short *INPUT;
%typemap(python,in) long *INOUT = long *INPUT;
%typemap(python,in) unsigned *INOUT = unsigned *INPUT;
%typemap(python,in) unsigned short *INOUT = unsigned short *INPUT;
%typemap(python,in) unsigned long *INOUT = unsigned long *INPUT;
%typemap(python,in) unsigned char *INOUT = unsigned char *INPUT;
%typemap(python,in) float *INOUT = float *INPUT;
%typemap(python,in) double *INOUT = double *INPUT;
%typemap(python,argout) int *INOUT = int *OUTPUT;
%typemap(python,argout) short *INOUT = short *OUTPUT;
%typemap(python,argout) long *INOUT = long *OUTPUT;
%typemap(python,argout) unsigned *INOUT = unsigned *OUTPUT;
%typemap(python,argout) unsigned short *INOUT = unsigned short *OUTPUT;
%typemap(python,argout) unsigned long *INOUT = unsigned long *OUTPUT;
%typemap(python,argout) unsigned char *INOUT = unsigned char *OUTPUT;
%typemap(python,argout) float *INOUT = float *OUTPUT;
%typemap(python,argout) double *INOUT = double *OUTPUT;
%typemap(python,in) int *T_INOUT = int *INPUT;
%typemap(python,in) short *T_INOUT = short *INPUT;
%typemap(python,in) long *T_INOUT = long *INPUT;
%typemap(python,in) unsigned *T_INOUT = unsigned *INPUT;
%typemap(python,in) unsigned short *T_INOUT = unsigned short *INPUT;
%typemap(python,in) unsigned long *T_INOUT = unsigned long *INPUT;
%typemap(python,in) unsigned char *T_INOUT = unsigned char *INPUT;
%typemap(python,in) float *T_INOUT = float *INPUT;
%typemap(python,in) double *T_INOUT = double *INPUT;
%typemap(python,argout) int *T_INOUT = int *T_OUTPUT;
%typemap(python,argout) short *T_INOUT = short *T_OUTPUT;
%typemap(python,argout) long *T_INOUT = long *T_OUTPUT;
%typemap(python,argout) unsigned *T_INOUT = unsigned *T_OUTPUT;
%typemap(python,argout) unsigned short *T_INOUT = unsigned short *T_OUTPUT;
%typemap(python,argout) unsigned long *T_INOUT = unsigned long *T_OUTPUT;
%typemap(python,argout) unsigned char *T_INOUT = unsigned char *T_OUTPUT;
%typemap(python,argout) float *T_INOUT = float *T_OUTPUT;
%typemap(python,argout) double *T_INOUT = double *T_OUTPUT;
%typemap(python,in) int *L_INOUT = int *INPUT;
%typemap(python,in) short *L_INOUT = short *INPUT;
%typemap(python,in) long *L_INOUT = long *INPUT;
%typemap(python,in) unsigned *L_INOUT = unsigned *INPUT;
%typemap(python,in) unsigned short *L_INOUT = unsigned short *INPUT;
%typemap(python,in) unsigned long *L_INOUT = unsigned long *INPUT;
%typemap(python,in) unsigned char *L_INOUT = unsigned char *INPUT;
%typemap(python,in) float *L_INOUT = float *INPUT;
%typemap(python,in) double *L_INOUT = double *INPUT;
%typemap(python,argout) int *L_INOUT = int *L_OUTPUT;
%typemap(python,argout) short *L_INOUT = short *L_OUTPUT;
%typemap(python,argout) long *L_INOUT = long *L_OUTPUT;
%typemap(python,argout) unsigned *L_INOUT = unsigned *L_OUTPUT;
%typemap(python,argout) unsigned short *L_INOUT = unsigned short *L_OUTPUT;
%typemap(python,argout) unsigned long *L_INOUT = unsigned long *L_OUTPUT;
%typemap(python,argout) unsigned char *L_INOUT = unsigned char *L_OUTPUT;
%typemap(python,argout) float *L_INOUT = float *L_OUTPUT;
%typemap(python,argout) double *L_INOUT = double *L_OUTPUT;
// Backwards compatibility
%typemap(python,in) int *BOTH = int *INOUT;
%typemap(python,in) short *BOTH = short *INOUT;
%typemap(python,in) long *BOTH = long *INOUT;
%typemap(python,in) unsigned *BOTH = unsigned *INOUT;
%typemap(python,in) unsigned short *BOTH = unsigned short *INOUT;
%typemap(python,in) unsigned long *BOTH = unsigned long *INOUT;
%typemap(python,in) unsigned char *BOTH = unsigned char *INOUT;
%typemap(python,in) float *BOTH = float *INOUT;
%typemap(python,in) double *BOTH = double *INOUT;
%typemap(python,argout) int *BOTH = int *INOUT;
%typemap(python,argout) short *BOTH = short *INOUT;
%typemap(python,argout) long *BOTH = long *INOUT;
%typemap(python,argout) unsigned *BOTH = unsigned *INOUT;
%typemap(python,argout) unsigned short *BOTH = unsigned short *INOUT;
%typemap(python,argout) unsigned long *BOTH = unsigned long *INOUT;
%typemap(python,argout) unsigned char *BOTH = unsigned char *INOUT;
%typemap(python,argout) float *BOTH = float *INOUT;
%typemap(python,argout) double *BOTH = double *INOUT;
%typemap(python,in) int *T_BOTH = int *T_INOUT;
%typemap(python,in) short *T_BOTH = short *T_INOUT;
%typemap(python,in) long *T_BOTH = long *T_INOUT;
%typemap(python,in) unsigned *T_BOTH = unsigned *T_INOUT;
%typemap(python,in) unsigned short *T_BOTH = unsigned short *T_INOUT;
%typemap(python,in) unsigned long *T_BOTH = unsigned long *T_INOUT;
%typemap(python,in) unsigned char *T_BOTH = unsigned char *T_INOUT;
%typemap(python,in) float *T_BOTH = float *T_INOUT;
%typemap(python,in) double *T_BOTH = double *T_INOUT;
%typemap(python,argout) int *T_BOTH = int *T_INOUT;
%typemap(python,argout) short *T_BOTH = short *T_INOUT;
%typemap(python,argout) long *T_BOTH = long *T_INOUT;
%typemap(python,argout) unsigned *T_BOTH = unsigned *T_INOUT;
%typemap(python,argout) unsigned short *T_BOTH = unsigned short *T_INOUT;
%typemap(python,argout) unsigned long *T_BOTH = unsigned long *T_INOUT;
%typemap(python,argout) unsigned char *T_BOTH = unsigned char *T_INOUT;
%typemap(python,argout) float *T_BOTH = float *T_INOUT;
%typemap(python,argout) double *T_BOTH = double *T_INOUT;
// --------------------------------------------------------------------
// Special types
//
// --------------------------------------------------------------------
#ifdef AUTODOC
%subsection "Special Methods"
%text %{
The typemaps.i library also provides the following mappings :
PyObject *
When a PyObject * appears as either an input value or return
value of a function, SWIG passes it through unmodified. Thus,
if you want to write a C function that operates on PyObjects,
it is easy to write. For example :
%include typemaps.i
PyObject *spam(PyObject *obj1, int n);
Unlike normal Python wrapper functions, These functions can
use any combination of parameters that you wish.
%}
#endif
// If a PyObject * appears as either an argument or a function return
// value, simply pass it straight through.
%typemap(python,in) PyObject * {
$target = $source;
}
%typemap(python,out) PyObject * {
$target = $source;
}