pub fn diff_modules(
old: &SerializedIr,
new: &SerializedIr,
) -> (Vec<String>, Vec<String>, Vec<String>)Expand description
Compute the diff between two module snapshots.
Returns (added, removed, modified) — each a Vec<String> of declaration
names. A declaration is “modified” when the name exists in both modules but
the SerialDecl differs in any field.