How does godot choose what object data is stored in the .tscn, .tres file?

kitfox

I've written a number of scripts that extend Godot Nodes and Resource and am wondering how the editor saves their data to disk. Does it just look for @export annotations and store that data as is to the .tres or .tscn file? Or is it more complicated? I'm asking because I'd like to completely change how data is structured in one of my Resource extending classes, but don't want to loose the data that I've already set for them in the numerous places where I'm using the old design.

xyz

kitfox You can deduce it from looking at tres and tscn files. All node and resource properties that were changed from their default values will be saved within tres/tscn files. So it's likely that all property values for properties whose names haven't changed when restructuring the resource class will survive. You can test it in a minimal project, just to be sure.