Different representation of a diff?

[decibel]

I came across this project while looking for a simple way to compare two instances of the same struct. I currently define type Delta struct{ old, new interface{} } and then use a map of that where the member name is the key. Obviously can't do deep compares with that, but it works well from a programmatic standpoint.

I'm wondering if you considered any other methods for handling the paths? Would you be interested in having any alternative representations in this project?

[d4l3k]

Haven't really given it much thought. What's the benefit of having a struct like that? Are you actually using the diff for something other than just pretty printing it?

[decibel]

Right, I'm using the diff as a way to represent a set of requested changes. I've got code for this, but I need to get approval to share it. In a nutshell though, I've created interface {Old(),New() interface{}}, an interface on top of that that adds addressability (for arrays/slices, as well as maps/structs), and then a MapDeltas struct that will store a set of those. The interfaces also have methods like Equal(), Added/Removed (when something was added or removed from a slice or map) and a few other goodies.