def generate_down_cast(output_file, cur_class, base_class, capi_generator):
cur_class_extra_info = capi_generator.extra_info[cur_class]
base_class_extra_info = capi_generator.extra_info[base_class]
output_file.put_line('template<>')
output_file.put_line(
'inline {return_type} down_cast(const {input_type}& input_object)'.format(
return_type=cur_class_extra_info.get_class_name(),
input_type=base_class_extra_info.get_class_name()
)
)
with FileGenerator.IndentScope(output_file):
Helpers.put_raw_pointer_structure(output_file)
c_function_name = '{0}_cast_to_{1}'.format(
base_class_extra_info.get_c_name(),
cur_class_extra_info.get_c_name()
)
output_file.put_line(
'return {0}({1}(reinterpret_cast<const raw_pointer_holder*>(&input_object)->raw_pointer), true);'.format(
cur_class_extra_info.get_class_name(),
c_function_name,
)
)
c_function_declaration = 'void* {0}(void* object_pointer)'.format(c_function_name)
capi_generator.loader_traits.add_c_function_declaration(c_function_declaration)
with FileGenerator.IndentScope(capi_generator.output_source):
capi_generator.output_source.put_line(
'return dynamic_cast<{0}*>(static_cast<{1}*>(object_pointer));'.format(
cur_class.m_implementation_class_name,
base_class.m_implementation_class_name
)
)
capi_generator.output_source.put_line('')
output_file.put_line('')
def put_raw_pointer_structure_if_required(self, output_file, arguments):
if self.__is_raw_pointer_structure_required(arguments):
Helpers.put_raw_pointer_structure(output_file)
