Adding data structures

Requirements

Your new data structure must inherit from the Data class.

Hence, you must add the method get_flat_data, that returns a list of all the instances of Data contained inside your data structure. If it is a singular value, it should be something like

return [self]

If you are building a container, it should resemble :

return [self] + list_of_contained_data

The get_flat_data method is mainly used for status reset, if you encounter problem with status not resetting, it might be the fault of get_flat_data not correctly implemented.

Status handling

The tricky part is the status handling.

If you are building a container, you don’t have to worry too much about it, as the inside Data instances will handle their status. Although, you can implement the following status :

• If there is access for a value inside, mark it as Status.LOOKED_INSIDE

• If a value is removed, mark is as Status.REMOVED_INSIDE

Otherwise, when the value is :

• created, mark it as Status.CREATED

• accessed, mark it as Status.READ,

• written, mark it as Status.AFFECTED

• compared, mark it with one of the comparator value, Status.LESS_THAN, Status.GREATER_THAN, Status.EQUAL, Status.DIFFERENT

The default status is Status.None.