def injection_wrapper(*args, **kwargs):
context = cdi_context.get_context()
# arguments injected
additional_args = []
# iterate over the positional arguments of the function definition
i = len(args)
while i < len(arg_names):
arg_name = arg_names[i]
# stop when we do not have a parameter for the positional argument
# or stop at the first keyword argument
if arg_name not in params or arg_name in kwargs:
break
# this parameter will be injected into the *args
additional_args.append(context.get_instance(params[arg_name]))
i += 1
if additional_args:
args += tuple(additional_args)
# a list of all positional args that we have injected
used_args = arg_names[:i]
for name, cls in params.items():
if not name in kwargs and not name in used_args:
kwargs[name] = context.get_instance(cls)
return func(*args, **kwargs)
def __get__(self, instance, owner):
try:
obj = instance or owner
context = cdi_context.get_context()
if not self._has_cached(obj, bool(instance), context):
injected = context.get_instance(self._cls)
self._set_cached(obj, bool(instance), context, injected)
return self._get_cached(obj, bool(instance), context)
except AttributeError:
return None