Github user mxmrlv commented on a diff in the pull request: https://github.com/apache/incubator-ariatosca/pull/188#discussion_r131536784 --- Diff: aria/orchestrator/execution_plugin/ctx_proxy/server.py --- @@ -170,101 +178,59 @@ def _process_ctx_request(ctx, args): # pylint: disable=too-many-branches,too-man modifying_key = None modifying_value = None - num_args = len(args) - - while index < num_args: - arg = args[index] - - # Object attribute - attr = _desugar_attr(current, arg) - if attr is not None: - current = getattr(current, attr) - - # List entry - elif isinstance(current, list) and _is_int(arg): - current = current[int(arg)] - - # Dict (or dict-like object) value - elif hasattr(current, '__getitem__'): - if modifying and (not arg in current): - current[arg] = {} - current = current[arg] - - # Call - elif callable(current): - if isinstance(current, functools.partial): - argspec = inspect.getargspec(current.func) - # Don't count initial args fulfilled by the partial - spec_args = argspec.args[len(current.args):] - # Don't count keyword args fulfilled by the partial - spec_args = tuple(a for a in spec_args if a not in current.keywords) - else: - argspec = inspect.getargspec(current) - spec_args = argspec.args - - callable_kwargs = {} - if isinstance(arg, dict): - # If the first arg is a dict, treat it as our kwargs - # TODO: what if the first argument really needs to be a dict? - callable_kwargs = arg - index += 1 - - if argspec.varargs is not None: - # Gobble the rest of the args - callable_args = args[index:] - else: - # Take only what we need - spec_args = tuple(a for a in spec_args if a not in callable_kwargs) - spec_args_count = len(spec_args) - if inspect.ismethod(current): - # Don't count "self" argument - spec_args_count -= 1 - callable_args = args[index:index + spec_args_count] - # Note: we might actually have fewer args than the args_count, but that could be OK - # if the user expects subsequent args to have default values - - args_count = len(callable_args) - if args_count > 1: - index += args_count - 1 - - current = current(*callable_args, **callable_kwargs) - - else: - raise RuntimeError('`{0}` cannot be processed in {1}'.format(arg, args)) - - index += 1 - - if callable(current): - current = current() + # Parse all arguments + while len(args) > 0: + obj, args = _parse_argument(obj, args, modifying) if modifying: - if hasattr(current, '__setitem__'): - # Modify dict value - current[modifying_key] = modifying_value - else: + if hasattr(obj, '__setitem__'): --- End diff -- consider `isinstance(obj, (dict, list))`
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