Module diff 

Diff engine for comparing two Code Property Graphs.

Overview

This module loads or builds two CodePropertyGraphs (typically from two projects or two cached snapshots) and computes a symmetric difference: which functions, classes and call-edges were added, removed or stayed the same.

Output

The result is a DiffReport containing two flat vectors:

• nodes – every node present in at least one of the two graphs, tagged with Status.
• edges – every unique (caller, callee, kind) tuple, also tagged with its status.

Matching strategy

• Nodes are matched by their name field (must be unique within a graph; the caller is responsible for disambiguation).
• Edges are matched by the triple (source_name, target_name, edge_kind).

Example

use icb_server::diff::{diff_graphs, Status};
use icb_graph::graph::CodePropertyGraph;

let old = CodePropertyGraph::new();
let new = CodePropertyGraph::new();
let report = diff_graphs(&old, &new);
assert!(report.nodes.is_empty());

Structs

DiffEdge

A single edge in the diff output.

DiffNode

A single node in the diff output.

DiffReport

Complete result of a diff operation.

Enums

Status

Status of an entity in the diff.

Functions

diff_graphs

Compute the symmetric difference between two graphs.