does adding more tables to a union break backward compatibility ?

[Ricardo Quesada]

Hi, 

I couldn't find it in the documentation, so I ask it here:

Let's say I have a union of three objects:

union AnyObject {Object, SubObject1, subObject2};

and somewhere I have:

objects:[AnyObject]

If in the future I add a new a new table to the union, eg:

union AnyObject {Object, SubObject1, subObject2, subObject3, subObject4};

will it break backwards compatibility ? will older version still be able to parse the newly generated .bin files ?

Thanks!

[mikkelfj]

objects:[AnyObject]

You can't have a vector of unions, unfortunately. You need to wrap the union in table.

If in the future I add a new a new table to the union, eg:

union AnyObject {Object, SubObject1, subObject2, subObject3, subObject4}; 

will it break backwards compatibility ? will older version still be able to parse the newly generated .bin files ?

 

Aside from the above issue, you there is no problem adding a new type to the union. Just observe that the union is limited to 255 members and make sure you add the new members at the end of union otherwise you will mix up the encoded ID of the existing types.

Mikkel

[Ricardo Quesada]

objects:[AnyObject]

You can't have a vector of unions, unfortunately. You need to wrap the union in table.

good to know. thanks 

Aside from the above issue, you there is no problem adding a new type to the union. Just observe that the union is limited to 255 members and make sure you add the new members at the end of union otherwise you will mix up the encoded ID of the existing types.

yay!