Following on from my expanding embedded code thread, I'm making progress
in that if I hack the class instantiation in the wrapper that pybindgen
produces I can get it all to work.
With that in mind, I'm trying to use add_function_as_constructor but it
won't let me use a 'void *' or 'PyObject *' pointer as a parameter. I
have to use 'uint32_t *' and then edit the code!!
My generator code looks like this...
testclass = mod.add_class('testclass')
testclass.add_function_as_constructor('PyCObject_AsVoidPtr', None,
[Parameter.new(''PyObject *', 'instance', transfer_ownership = False)])
which results in the traceback of...
Traceback (most recent call last):
File "testclassgen.py", line 31, in <module>
my_module_gen(sys.stdout)
File "testclassgen.py", line 28, in my_module_gen
mod.generate(FileCodeSink(out_file) )
File "/usr/local/lib/python2.5/site-packages/pybindgen/module.py",
line 839, in generate
self.do_generate(sink_manager, module_file_base_name)
File "/usr/local/lib/python2.5/site-packages/pybindgen/module.py",
line 721, in do_generate
class_.generate(sink, self)
File "/usr/local/lib/python2.5/site-packages/pybindgen/cppclass.py",
line 1481, in generate
have_constructor = self._generate_constructor(code_sink)
File "/usr/local/lib/python2.5/site-packages/pybindgen/cppclass.py",
line 1620, in _generate_constructor
overload.generate(code_sink)
File
"/usr/local/lib/python2.5/site-packages/pybindgen/overloading.py", line
183, in generate
(code_sink,), {}, self.all_wrappers[0])
File "/usr/local/lib/python2.5/site-packages/pybindgen/utils.py", line
124, in call_with_error_handling
return callback(*args, **kwargs)
File "/usr/local/lib/python2.5/site-packages/pybindgen/cppmethod.py",
line 520, in generate
% self._class.name)
AssertionError: something went wrong with the type handlers;
constructors need parameter names, yet no names were given for the class
testclass constructor
If I change the 'PyObject *' to a 'void *' I get...Traceback (most
recent call last):
File "testclassgen.py", line 31, in <module>
my_module_gen(sys.stdout)
File "testclassgen.py", line 16, in my_module_gen
testclass.add_function_as_constructor('PyCObject_AsVoidPtr', None,
[Parameter.new('void *', 'instance', transfer_ownership = False)])
File
"/usr/local/lib/python2.5/site-packages/pybindgen/typehandlers/base.py",
line 1221, in new
param_type_matcher.lookup(ctype)
File
"/usr/local/lib/python2.5/site-packages/pybindgen/typehandlers/base.py",
line 1350, in lookup
raise TypeLookupError(tried_names)
pybindgen.typehandlers.base.TypeLookupError: ['void *']
but looking at pybindgen-0.10.0/pybindgen/typehandlers/base.py it looks
like at least void * should be OK!!
I either still missing something (very likely) or there is a problem here!
--
Robin
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