Error Parsing IF_DATA when A2L file doesn't have any if-data sections

[roblamoreaux]

I have A2L files generated that do not have IF_DATA sections. When pya2l pulls them in to create the a2ldb file it makes an empty ifdata table and all the measurements in the if_data_associatoin table have a position field of 0.

When meas = Measurement(self.session, _mstring) is called I get the following error message

10:57:52.941 Python Error parsing IF_DATA: list index out of range

10:57:52.942 Python Error parsing IF_DATA section: '/begin IF_DATA XCP\n /begin DAQ_EVENT VARIABLE\n /begin DEFAULT_EVENT_LIST\n EVENT 0x2\n /end DEFAULT_EVENT_LIST\n /end DAQ_EVENT\n /end IF_DATA': ParsingError('Error parsing IF_DATA: list index out of range')

opening the a2ldb in python I get the following:

ifd = model.IfData()
ifd
IfData(sl = None, sc = None, el = None, ec = None, raw = None, parsed = None, rid = None)

So it seems to me there should be some error checking for no IF_DATA before trying to parse the data.

For now in my local fork I am just changing the parse code to log this as debug instead of error, but it would be nice if I didn't have to do that so I could keep my python packages up to date.