def generate(self, code_sink):
"""
Generate the getset table, return the table C name or '0' if
the table is empty
"""
if not self.attributes:
return '0'
getsets = collections.OrderedDict() # attrname -> (getter, setter)
for name, getter, setter, custom_name in self.attributes:
getter_name = 'NULL'
if getter is not None:
# getter.generate(code_sink)
try:
utils.call_with_error_handling(getter.generate, (code_sink,), {}, getter)
except utils.SkipWrapper:
pass
else:
getter_name = getter.c_function_name
setter_name = 'NULL'
if setter is not None:
#setter.generate(code_sink)
try:
utils.call_with_error_handling(setter.generate, (code_sink,), {}, setter)
except utils.SkipWrapper:
pass
else:
setter_name = setter.c_function_name
assert name not in getsets
getsets[name] = (getter_name, setter_name, custom_name)
code_sink.writeln("static PyGetSetDef %s[] = {" % self.cname)
code_sink.indent()
for name, (getter_c_name, setter_c_name, custom_name) in getsets.items():
code_sink.writeln('{')
code_sink.indent()
code_sink.writeln('(char*) "%s", /* attribute name */' % (custom_name or name))
## getter
code_sink.writeln(
'(getter) %s, /* C function to get the attribute */'
% getter_c_name)
## setter
code_sink.writeln(
'(setter) %s, /* C function to set the attribute */'
% setter_c_name)
code_sink.writeln('NULL, /* optional doc string */')
code_sink.writeln('NULL /* optional additional data '
'for getter and setter */')
code_sink.unindent()
code_sink.writeln('},')
code_sink.writeln('{ NULL, NULL, NULL, NULL, NULL }')
code_sink.unindent()
code_sink.writeln('};')
return self.cname
def generate(self, code_sink):
"""
Generate the getset table, return the table C name or '0' if
the table is empty
"""
if not self.attributes:
return '0'
getsets = {} # attrname -> (getter, setter)
for name, getter, setter in self.attributes:
getter_name = 'NULL'
if getter is not None:
# getter.generate(code_sink)
try:
utils.call_with_error_handling(getter.generate, (code_sink,), {}, getter)
except utils.SkipWrapper:
pass
else:
getter_name = getter.c_function_name
setter_name = 'NULL'
if setter is not None:
#setter.generate(code_sink)
try:
utils.call_with_error_handling(setter.generate, (code_sink,), {}, setter)
except utils.SkipWrapper:
pass
else:
setter_name = setter.c_function_name
assert name not in getsets
getsets[name] = (getter_name, setter_name)
code_sink.writeln("static PyGetSetDef %s[] = {" % self.cname)
code_sink.indent()
for name, (getter_c_name, setter_c_name) in getsets.items():
code_sink.writeln('{')
code_sink.indent()
code_sink.writeln('(char*) "%s", /* attribute name */' % name)
## getter
code_sink.writeln(
'(getter) %s, /* C function to get the attribute */'
% getter_c_name)
## setter
code_sink.writeln(
'(setter) %s, /* C function to set the attribute */'
% setter_c_name)
code_sink.writeln('NULL, /* optional doc string */')
code_sink.writeln('NULL /* optional additional data '
'for getter and setter */')
code_sink.unindent()
code_sink.writeln('},')
code_sink.writeln('{ NULL, NULL, NULL, NULL, NULL }')
code_sink.unindent()
code_sink.writeln('};')
return self.cname
def do_generate(self, out, module_file_base_name=None):
"""(internal) Generates the module."""
assert isinstance(out, _SinkManager)
if self.parent is None:
## generate the include directives (only the root module)
forward_declarations_sink = MemoryCodeSink()
if not self._forward_declarations_declared:
self.generate_forward_declarations(forward_declarations_sink)
self.after_forward_declarations.flush_to(forward_declarations_sink)
if self.parent is None:
for include in self.includes:
out.get_includes_code_sink().writeln("#include %s" % include)
self.includes = None
forward_declarations_sink.flush_to(out.get_includes_code_sink())
else:
assert module_file_base_name is None, "only root modules can generate with alternate module_file_base_name"
## generate the submodules
for submodule in self.submodules:
submodule.do_generate(out)
m = self.declarations.declare_variable('PyObject*', 'm')
assert m == 'm'
if module_file_base_name is None:
mod_init_name = '.'.join(self.get_module_path())
else:
mod_init_name = module_file_base_name
self.before_init.write_code('#if PY_VERSION_HEX >= 0x03000000')
self.before_init.write_code(
"m = PyModule_Create(&%s_moduledef);"
% (self.name))
self.before_init.write_code('#else')
self.before_init.write_code(
"m = Py_InitModule3((char *) \"%s\", %s_functions, %s);"
% (mod_init_name, self.prefix,
self.docstring and '"'+self.docstring+'"' or 'NULL'))
self.before_init.write_code('#endif')
self.before_init.write_error_check("m == NULL")
main_sink = out.get_main_code_sink()
## generate the function wrappers
py_method_defs = []
if self.functions:
main_sink.writeln('/* --- module functions --- */')
main_sink.writeln()
for func_name, overload in self.functions.items():
sink, header_sink = out.get_code_sink_for_wrapper(overload)
sink.writeln()
try:
utils.call_with_error_handling(overload.generate, (sink,), {}, overload)
except utils.SkipWrapper:
continue
try:
utils.call_with_error_handling(overload.generate_declaration, (main_sink,), {}, overload)
except utils.SkipWrapper:
continue
sink.writeln()
py_method_defs.append(overload.get_py_method_def(func_name))
del sink
## generate the function table
main_sink.writeln("static PyMethodDef %s_functions[] = {"
% (self.prefix,))
main_sink.indent()
for py_method_def in py_method_defs:
main_sink.writeln(py_method_def)
main_sink.writeln("{NULL, NULL, 0, NULL}")
main_sink.unindent()
main_sink.writeln("};")
## generate the classes
if self.classes:
main_sink.writeln('/* --- classes --- */')
main_sink.writeln()
for class_ in [c for c in self.classes if c.import_from_module]:
sink, header_sink = out.get_code_sink_for_wrapper(class_)
sink.writeln()
class_.generate(sink, self)
sink.writeln()
for class_ in [c for c in self.classes if not c.import_from_module]:
sink, header_sink = out.get_code_sink_for_wrapper(class_)
sink.writeln()
class_.generate(sink, self)
sink.writeln()
## generate the containers
if self.containers:
main_sink.writeln('/* --- containers --- */')
main_sink.writeln()
for container in self.containers:
sink, header_sink = out.get_code_sink_for_wrapper(container)
sink.writeln()
container.generate(sink, self)
sink.writeln()
## generate the exceptions
if self.exceptions:
main_sink.writeln('/* --- exceptions --- */')
main_sink.writeln()
for exc in self.exceptions:
sink, header_sink = out.get_code_sink_for_wrapper(exc)
sink.writeln()
exc.generate(sink, self)
sink.writeln()
# typedefs
for (wrapper, alias) in self.typedefs:
if isinstance(wrapper, CppClass):
cls = wrapper
cls.generate_typedef(self, alias)
## generate the enums
if self.enums:
main_sink.writeln('/* --- enumerations --- */')
main_sink.writeln()
for enum in self.enums:
sink, header_sink = out.get_code_sink_for_wrapper(enum)
sink.writeln()
enum.generate(sink)
enum.generate_declaration(header_sink, self)
sink.writeln()
## register the submodules
if self.submodules:
submodule_var = self.declarations.declare_variable('PyObject*', 'submodule')
for submodule in self.submodules:
self.after_init.write_code('%s = %s();' % (
submodule_var, submodule.init_function_name))
self.after_init.write_error_check('%s == NULL' % submodule_var)
self.after_init.write_code('Py_INCREF(%s);' % (submodule_var,))
self.after_init.write_code('PyModule_AddObject(m, (char *) "%s", %s);'
% (submodule.name, submodule_var,))
## flush the header section
self.header.flush_to(out.get_includes_code_sink())
## flush the body section
self.body.flush_to(main_sink)
## now generate the module init function itself
main_sink.writeln('#if PY_VERSION_HEX >= 0x03000000\n'
'static struct PyModuleDef %s_moduledef = {\n'
' PyModuleDef_HEAD_INIT,\n'
' "%s",\n'
' %s,\n'
' -1,\n'
' %s_functions,\n'
'};\n'
'#endif' % (self.name, mod_init_name,
self.docstring and '"'+self.docstring+'"' or 'NULL',
self.prefix))
main_sink.writeln()
if self.parent is None:
main_sink.writeln('''
#if PY_VERSION_HEX >= 0x03000000
#define MOD_ERROR NULL
#define MOD_INIT(name) PyObject* PyInit_##name(void)
#define MOD_RETURN(val) val
#else
#define MOD_ERROR
#define MOD_INIT(name) void init##name(void)
#define MOD_RETURN(val)
#endif
#if defined(__cplusplus)
extern "C"
#endif
#if defined(__GNUC__) && __GNUC__ >= 4
__attribute__ ((visibility("default")))
#endif
''')
else:
main_sink.writeln("static PyObject *")
if self.parent is None:
main_sink.writeln("MOD_INIT(%s)" % (self.name,))
elif module_file_base_name is None:
main_sink.writeln("%s(void)" % (self.init_function_name,))
else:
main_sink.writeln("init%s(void)" % (module_file_base_name,))
main_sink.writeln('{')
main_sink.indent()
self.declarations.get_code_sink().flush_to(main_sink)
self.before_init.sink.flush_to(main_sink)
self.after_init.write_cleanup()
self.after_init.sink.flush_to(main_sink)
if self.parent is not None:
main_sink.writeln("return m;")
else:
main_sink.writeln("return MOD_RETURN(m);")
main_sink.unindent()
main_sink.writeln('}')
def do_generate(self, out, module_file_base_name=None):
"""(internal) Generates the module."""
assert isinstance(out, _SinkManager)
if self.parent is None:
## generate the include directives (only the root module)
forward_declarations_sink = MemoryCodeSink()
if not self._forward_declarations_declared:
self.generate_forward_declarations(forward_declarations_sink)
self.after_forward_declarations.flush_to(forward_declarations_sink)
if self.parent is None:
for include in self.includes:
out.get_includes_code_sink().writeln("#include %s" % include)
self.includes = None
forward_declarations_sink.flush_to(out.get_includes_code_sink())
else:
assert module_file_base_name is None, "only root modules can generate with alternate module_file_base_name"
## generate the submodules
for submodule in self.submodules:
submodule.do_generate(out)
m = self.declarations.declare_variable('PyObject*', 'm')
assert m == 'm'
if module_file_base_name is None:
mod_init_name = '.'.join(self.get_module_path())
else:
mod_init_name = module_file_base_name
self.before_init.write_code('#if PY_VERSION_HEX >= 0x03000000')
self.before_init.write_code(
"m = PyModule_Create(&%s_moduledef);"
% (self.prefix))
self.before_init.write_code('#else')
self.before_init.write_code(
"m = Py_InitModule3((char *) \"%s\", %s_functions, %s);"
% (mod_init_name, self.prefix,
self.docstring and '"'+self.docstring+'"' or 'NULL'))
self.before_init.write_code('#endif')
self.before_init.write_error_check("m == NULL")
main_sink = out.get_main_code_sink()
## generate the function wrappers
py_method_defs = []
if self.functions:
main_sink.writeln('/* --- module functions --- */')
main_sink.writeln()
for func_name, overload in self.functions.items():
sink, header_sink = out.get_code_sink_for_wrapper(overload)
sink.writeln()
try:
utils.call_with_error_handling(overload.generate, (sink,), {}, overload)
except utils.SkipWrapper:
continue
try:
utils.call_with_error_handling(overload.generate_declaration, (main_sink,), {}, overload)
except utils.SkipWrapper:
continue
sink.writeln()
py_method_defs.append(overload.get_py_method_def(func_name))
del sink
## generate the function table
main_sink.writeln("static PyMethodDef %s_functions[] = {"
% (self.prefix,))
main_sink.indent()
for py_method_def in py_method_defs:
main_sink.writeln(py_method_def)
main_sink.writeln("{NULL, NULL, 0, NULL}")
main_sink.unindent()
main_sink.writeln("};")
## generate the classes
if self.classes:
main_sink.writeln('/* --- classes --- */')
main_sink.writeln()
for class_ in [c for c in self.classes if c.import_from_module]:
sink, header_sink = out.get_code_sink_for_wrapper(class_)
sink.writeln()
class_.generate(sink, self)
sink.writeln()
for class_ in [c for c in self.classes if not c.import_from_module]:
sink, header_sink = out.get_code_sink_for_wrapper(class_)
sink.writeln()
class_.generate(sink, self)
sink.writeln()
## generate the containers
if self.containers:
main_sink.writeln('/* --- containers --- */')
main_sink.writeln()
for container in self.containers:
sink, header_sink = out.get_code_sink_for_wrapper(container)
sink.writeln()
container.generate(sink, self)
sink.writeln()
## generate the exceptions
if self.exceptions:
main_sink.writeln('/* --- exceptions --- */')
main_sink.writeln()
for exc in self.exceptions:
sink, header_sink = out.get_code_sink_for_wrapper(exc)
sink.writeln()
exc.generate(sink, self)
sink.writeln()
# typedefs
for (wrapper, alias) in self.typedefs:
if isinstance(wrapper, CppClass):
cls = wrapper
cls.generate_typedef(self, alias)
## generate the enums
if self.enums:
main_sink.writeln('/* --- enumerations --- */')
main_sink.writeln()
for enum in self.enums:
sink, header_sink = out.get_code_sink_for_wrapper(enum)
sink.writeln()
enum.generate(sink)
enum.generate_declaration(header_sink, self)
sink.writeln()
## register the submodules
if self.submodules:
submodule_var = self.declarations.declare_variable('PyObject*', 'submodule')
for submodule in self.submodules:
self.after_init.write_code('%s = %s();' % (
submodule_var, submodule.init_function_name))
self.after_init.write_error_check('%s == NULL' % submodule_var)
self.after_init.write_code('Py_INCREF(%s);' % (submodule_var,))
self.after_init.write_code('PyModule_AddObject(m, (char *) "%s", %s);'
% (submodule.name, submodule_var,))
## flush the header section
self.header.flush_to(out.get_includes_code_sink())
## flush the body section
self.body.flush_to(main_sink)
## now generate the module init function itself
main_sink.writeln('#if PY_VERSION_HEX >= 0x03000000\n'
'static struct PyModuleDef %s_moduledef = {\n'
' PyModuleDef_HEAD_INIT,\n'
' "%s",\n'
' %s,\n'
' -1,\n'
' %s_functions,\n'
'};\n'
'#endif' % (self.prefix, mod_init_name,
self.docstring and '"'+self.docstring+'"' or 'NULL',
self.prefix))
main_sink.writeln()
if self.parent is None:
main_sink.writeln('''
#if PY_VERSION_HEX >= 0x03000000
#define MOD_ERROR NULL
#define MOD_INIT(name) PyObject* PyInit_##name(void)
#define MOD_RETURN(val) val
#else
#define MOD_ERROR
#define MOD_INIT(name) void init##name(void)
#define MOD_RETURN(val)
#endif
#if defined(__cplusplus)
extern "C"
#endif
#if defined(__GNUC__) && __GNUC__ >= 4
__attribute__ ((visibility("default")))
#endif
''')
else:
main_sink.writeln("static PyObject *")
if self.parent is None:
main_sink.writeln("MOD_INIT(%s)" % (self.name,))
elif module_file_base_name is None:
main_sink.writeln("%s(void)" % (self.init_function_name,))
else:
main_sink.writeln("init%s(void)" % (module_file_base_name,))
main_sink.writeln('{')
main_sink.indent()
self.declarations.get_code_sink().flush_to(main_sink)
self.before_init.sink.flush_to(main_sink)
self.after_init.write_cleanup()
self.after_init.sink.flush_to(main_sink)
if self.parent is not None:
main_sink.writeln("return m;")
else:
main_sink.writeln("return MOD_RETURN(m);")
main_sink.unindent()
main_sink.writeln('}')
