diff options
Diffstat (limited to 'python/decorators.py')
| -rw-r--r-- | python/decorators.py | 39 |
1 files changed, 34 insertions, 5 deletions
diff --git a/python/decorators.py b/python/decorators.py index 8b553736..3973f3e4 100644 --- a/python/decorators.py +++ b/python/decorators.py @@ -2,16 +2,35 @@ import _util import inspect import dbus_bindings -def method(dbus_interface, in_signature=None, out_signature=None): +def method(dbus_interface, in_signature=None, out_signature=None, async_callbacks=None): _util._validate_interface_or_name(dbus_interface) def decorator(func): + args = inspect.getargspec(func)[0] + args.pop(0) + + if async_callbacks: + if type(async_callbacks) != tuple: + raise TypeError('async_callbacks must be a tuple of (keyword for return callback, keyword for error callback)') + if len(async_callbacks) != 2: + raise ValueError('async_callbacks must be a tuple of (keyword for return callback, keyword for error callback)') + args.remove(async_callbacks[0]) + args.remove(async_callbacks[1]) + + if in_signature: + in_sig = tuple(dbus_bindings.Signature(in_signature)) + + if len(in_sig) > len(args): + raise ValueError, 'input signature is longer than the number of arguments taken' + elif len(in_sig) < len(args): + raise ValueError, 'input signature is shorter than the number of arguments taken' + func._dbus_is_method = True + func._dbus_async_callbacks = async_callbacks func._dbus_interface = dbus_interface func._dbus_in_signature = in_signature func._dbus_out_signature = out_signature - func._dbus_args = inspect.getargspec(func)[0] - func._dbus_args.pop(0) + func._dbus_args = args return func return decorator @@ -29,13 +48,23 @@ def signal(dbus_interface, signature=None): self._connection.send(message) + args = inspect.getargspec(func)[0] + args.pop(0) + + if signature: + sig = tuple(dbus_bindings.Signature(func._dbus_signature)) + + if len(sig) > len(args): + raise ValueError, 'signal signature is longer than the number of arguments provided' + elif len(sig) < len(args): + raise ValueError, 'signal signature is shorter than the number of arguments provided' + emit_signal.__name__ = func.__name__ emit_signal.__doc__ = func.__doc__ emit_signal._dbus_is_signal = True emit_signal._dbus_interface = dbus_interface emit_signal._dbus_signature = signature - emit_signal._dbus_args = inspect.getargspec(func)[0] - emit_signal._dbus_args.pop(0) + emit_signal._dbus_args = args return emit_signal return decorator |