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#!/usr/bin/env python
from __future__ import unicode_literals, print_function
import sys, os
import pybindgen
from pybindgen import typehandlers
from pybindgen.typehandlers import codesink
from pybindgen.typehandlers.base import Parameter, ReturnValue
from pybindgen.function import Function
from pybindgen.module import Module
from pybindgen import cppclass
from pybindgen.typehandlers.base import NotSupportedError
import pybindgen.settings
pybindgen.settings.deprecated_virtuals = False
import re
stdint_rx = re.compile(".*int\\d+_t.*")
class MyReverseWrapper(typehandlers.base.ReverseWrapperBase):
def generate_python_call(self):
params = ['NULL'] # function object to call
build_params = self.build_params.get_parameters()
if build_params[0][0] == '"':
build_params[0] = '(char *) ' + build_params[0]
params.extend(build_params)
self.before_call.write_code('py_retval = PyObject_CallFunction(%s);' % (', '.join(params),))
self.before_call.write_error_check('py_retval == NULL')
self.before_call.add_cleanup_code('Py_DECREF(py_retval);')
def type_blacklisted(type_name):
if type_name.startswith('Glib::'):
return True
return False
def test():
code_out = codesink.FileCodeSink(sys.stdout)
pybindgen.write_preamble(code_out)
sys.stdout.write("""
#include <string>
#include <stdint.h>
""")
## Declare a dummy class
sys.stdout.write('''
class Foo
{
std::string m_datum;
public:
Foo () : m_datum ("")
{}
Foo (std::string datum) : m_datum (datum)
{}
std::string get_datum () const { return m_datum; }
Foo (Foo const & other) : m_datum (other.get_datum ())
{}
};
''')
module = Module("foo")
## Register type handlers for the class
Foo = module.add_class('Foo')
Foo.add_constructor([Parameter.new("const Foo&", "foo")])
#Foo.full_name = Foo.name # normally adding the class to a module would take care of this
Foo.generate_forward_declarations(code_out, module)
wrapper_number = 0
## test return type handlers of reverse wrappers
for return_type, return_handler in list(typehandlers.base.return_type_matcher.items()):
if type_blacklisted(return_type):
continue
if os.name == 'nt':
if stdint_rx.search(return_type):
continue # win32 does not support the u?int\d+_t types (defined in <stdint.h>)
code_out.writeln("/* Test %s (%s) return type */" % (return_type, return_handler))
if issubclass(return_handler, (cppclass.CppClassPtrReturnValue,
typehandlers.pyobjecttype.PyObjectReturnValue)):
for caller_owns_return in True, False:
retval = return_handler(return_type, caller_owns_return=caller_owns_return)
wrapper = MyReverseWrapper(retval, [])
wrapper_number += 1
try:
wrapper.generate(code_out,
'_test_wrapper_number_%i' % (wrapper_number,),
['static'])
except NotImplementedError:
sys.stderr.write("ReverseWrapper %s(void) (caller_owns_return=%r)"
" could not be generated: not implemented\n"
% (retval.ctype, caller_owns_return))
sys.stdout.write("\n")
else:
retval = return_handler(return_type)
try:
wrapper = MyReverseWrapper(retval, [])
except NotSupportedError:
continue
except NotImplementedError:
sys.stderr.write("ReverseWrapper %s(void) could not be generated: not implemented\n"
% (retval.ctype))
continue
wrapper_number += 1
memsink = codesink.MemoryCodeSink()
try:
wrapper.generate(memsink,
'_test_wrapper_number_%i' % (wrapper_number,),
['static'])
except NotImplementedError:
sys.stderr.write("ReverseWrapper %s xxx (void) could not be generated: not implemented\n"
% (retval.ctype,))
continue
except NotSupportedError:
continue
else:
memsink.flush_to(code_out)
sys.stdout.write("\n")
## test parameter type handlers of reverse wrappers
for param_type, param_handler in list(typehandlers.base.param_type_matcher.items()):
if type_blacklisted(param_type):
continue
if os.name == 'nt':
if stdint_rx.search(param_type):
continue # win32 does not support the u?int\d+_t types (defined in <stdint.h>)
for direction in param_handler.DIRECTIONS:
if direction == (Parameter.DIRECTION_IN):
param_name = 'param'
elif direction == (Parameter.DIRECTION_IN|Parameter.DIRECTION_OUT):
param_name = 'param_inout'
elif direction == (Parameter.DIRECTION_OUT):
param_name = 'param_out'
def try_wrapper(param, wrapper_number):
if 'const' in param.ctype and direction&Parameter.DIRECTION_OUT:
return
code_out.writeln("/* Test %s (%s) param type */" % (param_type, param_handler))
wrapper = MyReverseWrapper(ReturnValue.new('void'), [param])
try:
wrapper.generate(code_out,
'_test_wrapper_number_%i' % (wrapper_number,),
['static'])
except NotImplementedError:
sys.stderr.write("ReverseWrapper void(%s) could not be generated: not implemented"
% (param.ctype))
sys.stdout.write("\n")
if issubclass(param_handler, (cppclass.CppClassPtrParameter,
typehandlers.pyobjecttype.PyObjectParam)):
for transfer_ownership in True, False:
try:
param = param_handler(param_type, param_name, transfer_ownership=transfer_ownership)
except TypeError:
sys.stderr.write("ERROR -----> param_handler(param_type=%r, "
"transfer_ownership=%r, is_const=%r)\n"
% (param_type, transfer_ownership, is_const))
wrapper_number += 1
try_wrapper(param, wrapper_number)
else:
param = param_handler(param_type, param_name, direction)
wrapper_number += 1
try_wrapper(param, wrapper_number)
## test generic forward wrappers, and module
for return_type, return_handler in list(typehandlers.base.return_type_matcher.items()):
if type_blacklisted(return_type):
continue
if os.name == 'nt':
if stdint_rx.search(return_type):
continue # win32 does not support the u?int\d+_t types (defined in <stdint.h>)
wrapper_number += 1
function_name = 'foo_function_%i' % (wrapper_number,)
## declare a fake prototype
sys.stdout.write("%s %s(void);\n\n" % (return_type, function_name))
if issubclass(return_handler, (cppclass.CppClassPtrReturnValue,
typehandlers.pyobjecttype.PyObjectReturnValue)):
retval = return_handler(return_type, caller_owns_return=True)
else:
retval = return_handler(return_type)
module.add_function(function_name, retval, [])
for param_type, param_handler in list(typehandlers.base.param_type_matcher.items()):
if type_blacklisted(param_type):
continue
if os.name == 'nt':
if stdint_rx.search(param_type):
continue # win32 does not support the u?int\d+_t types (defined in <stdint.h>)
for is_const in [True, False]:
for direction in param_handler.DIRECTIONS:
if direction == (Parameter.DIRECTION_IN):
param_name = 'param'
elif direction == (Parameter.DIRECTION_IN|Parameter.DIRECTION_OUT):
param_name = 'param_inout'
elif direction == (Parameter.DIRECTION_OUT):
param_name = 'param_out'
if is_const and direction & Parameter.DIRECTION_OUT:
continue # const and output parameter makes no sense
if is_const:
if '&' in param_type: # const references not allowed
continue
param_type_with_const = "const %s" % (param_type,)
else:
param_type_with_const = param_type
if issubclass(param_handler, (cppclass.CppClassPtrParameter,
typehandlers.pyobjecttype.PyObjectParam)):
for transfer_ownership in True, False:
name = param_name + (transfer_ownership and '_transfer' or '_notransfer')
try:
param = param_handler(param_type, name, transfer_ownership=transfer_ownership)
except TypeError:
sys.stderr.write("ERROR -----> param_handler(param_type=%r, "
"name=%r, transfer_ownership=%r, is_const=%r)\n"
% (param_type, name, transfer_ownership, is_const))
wrapper_number += 1
function_name = 'foo_function_%i' % (wrapper_number,)
## declare a fake prototype
sys.stdout.write("void %s(%s %s);\n\n" % (function_name, param_type_with_const, name))
module.add_function(function_name, ReturnValue.new('void'), [param])
else:
param = param_handler(param_type, param_name, direction)
wrapper_number += 1
function_name = 'foo_function_%i' % (wrapper_number,)
## declare a fake prototype
sys.stdout.write("void %s(%s);\n\n" % (function_name, param_type_with_const))
module.add_function(function_name, ReturnValue.new('void'), [param])
module.generate(code_out)
if __name__ == '__main__':
test()
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