The Auto-Refactor Engine

The Auto-Refactor Engine is the beating heart of Code Hygienist Pro.

What differentiates this tool from standard Linting or Unity Project Auditor is its ability to fix the code it complains about safely.

No Blind Text Replacement

Typical script editors use simple regex replacements. Regex cannot distinguish between similar method calls or correctly calculate variable scopes in C# classes. Hand-rolling replacements leads to syntax errors requiring manual repairs.

Code Hygienist Pro instead uses Roslyn Syntax Tree (AST) transformations.

Example Transformation

Code Hygienist will detect this performance smell:

public void Update() {
    var cam = Camera.main; // Calling Camera.main every frame!
    cam.transform.position += Vector3.up;
}

The Engine intercepts the AST, identifies the surrounding class node, and safely injects:

1. A private field _cachedCamera.
2. Initialization of that field in Awake().
3. Replaces Camera.main within Update() with the cached field!

private Camera _cachedCamera;

public void Awake() {
    _cachedCamera = Camera.main;
}

public void Update() {
    var cam = _cachedCamera; // Completely safe, GC-free access!
    cam.transform.position += Vector3.up;
}

Diff Previews

Before ANY files are written back to your codebase, the Auto-Refactor Engine presents the proposed refactor script inside the Safe Mode Diff Viewer.

If you’re skeptical of a refactor, inspect the side-by-side diff overlay before consenting to write to disk.