Function dochy_diff::get_diff

pub fn get_diff(from: &RootObject, to: &RootObject) -> DiffResult<Vec<u8>>

Gets the difference from “from” to “to” in binary format.

When the diff binary is applied to a object with identical state of “from” object, an object with identical state of “to” object will be constructed.

You need two Rootobjects which has the same type data, which means those two are created from or adjusted to the same source file. No type-checks are available so be careful.

if ‘to’ is not derived from ‘from’, the diff binary can be invalid.

This system can’t restore ‘unmodified’ state. To apply diff from newer data with a modified variable to older data with the variable unmodified, the system needs to restore ‘unmodified’ state, but it can’t due to technical difficulties.

So you must make sure the “to” object is derived from “from” object. No checks are available about it too.