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python/gen_caller.py
Ullrich Köthe 12a881ead5 This commit was generated by cvs2svn to compensate for changes in r315,
which included commits to RCS files with non-trunk default branches.


[SVN r7932]
2000-10-13 13:49:34 +00:00

139 lines
3.9 KiB
Python

# (C) Copyright David Abrahams 2000. Permission to copy, use, modify, sell and
# distribute this software is granted provided this copyright notice appears
# in all copies. This software is provided "as is" without express or implied
# warranty, and with no claim as to its suitability for any purpose.
#
# The author gratefully acknowleges the support of Dragon Systems, Inc., in
# producing this work.
from gen_function import *
import string
header = '''// (C) Copyright David Abrahams 2000. Permission to copy, use, modify, sell and
// distribute this software is granted provided this copyright notice appears
// in all copies. This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
// The author gratefully acknowleges the support of Dragon Systems, Inc., in
// producing this work.
//
// This file generated for %d-argument member functions and %d-argument free
// functions by gen_caller.py
'''
body_sections = (
'''
#ifndef CALLER_DWA05090_H_
# define CALLER_DWA05090_H_
# include "pyconfig.h"
# include "wrap_python.h"
# include <boost/config.hpp>
# include "signatures.h"
# include "none.h"
namespace py {
// Calling C++ from Python
template <class R>
struct Caller
{
''',
'''
''',
''' // Free functions
''',
'''};
template <>
struct Caller<void>
{
''',
'''
''',
'''
// Free functions
''',
'''};
}
#endif
''')
#'
member_function = ''' template <class T%(, class A%n%)>
static PyObject* call(%1 (T::*pmf)(%(A%n%:, %))%2, PyObject* args, PyObject* /* keywords */ ) {
PyObject* self;
%( PyObject* a%n;
%) if (!PyArg_ParseTuple(args, const_cast<char*>("O%(O%)"), &self%(, &a%n%)))
return 0;
T& target = from_python(self, Type<T&>());
%3(target.*pmf)(%(from_python(a%n, Type<A%n>())%:,
%))%4
}
'''
free_function = '''%{ template <%(class A%n%:, %)>
%} static PyObject* call(%1 (*f)(%(A%n%:, %)), PyObject* args, PyObject* /* keywords */ ) {
%( PyObject* a%n;
%) if (!PyArg_ParseTuple(args, const_cast<char*>("%(O%)")%(, &a%n%)))
return 0;
%2f(%(from_python(a%n, Type<A%n>())%:,
%))%3
}
'''
def gen_caller(member_function_args, free_function_args = None):
if free_function_args is None:
free_function_args = member_function_args
return_none = ''';
return none();'''
return (header % (member_function_args, free_function_args)
+ body_sections[0]
+ gen_functions(member_function, member_function_args,
'R', '', 'return to_python(', ');')
+ body_sections[1]
+ gen_functions(member_function, member_function_args,
'R', ' const', 'return to_python(', ');')
+ body_sections[2]
+ gen_functions(free_function, free_function_args,
'R', 'return to_python(', ');')
+ body_sections[3]
# specialized part for void return values begins here
+ gen_functions(member_function, member_function_args,
'void', '', '', return_none)
+ body_sections[4]
+ gen_functions(member_function, member_function_args,
'void', ' const', '', return_none)
+ body_sections[5]
+ gen_functions(free_function, free_function_args,
'void', '', return_none)
+ body_sections[6]
)
if __name__ == '__main__':
import sys
if len(sys.argv) == 1:
member_function_args = 5
free_function_args = 6
else:
member_function_args = int(sys.argv[1])
if len(sys.argv) > 2:
free_function_args = int(sys.argv[2])
else:
free_function_args = member_function_args
print gen_caller(member_function_args, free_function_args)