def __call__(self, arguments=''):
"""Call the CLIPS function.
Function arguments must be provided as a string.
"""
data = clips.data.DataObject(self._env)
name = ffi.string(lib.EnvGetDeffunctionName(self._env, self._fnc))
args = arguments.encode() if arguments != '' else ffi.NULL
if lib.EnvFunctionCall(self._env, name, args, data.byref) == 1:
raise CLIPSError(self._env)
return data.value
def name(self):
"""Function name."""
return ffi.string(
lib.EnvGetDeffunctionName(self._env, self._fnc)).decode()