⚙️ Sandboxed Generator #

sandboxed_generator is the code generation package for Sandboxed,
a Flutter tool for building, testing, and documenting UI components in isolation.

This package generates the component and story registry used by the sandboxed viewer.

📦 Installation #

Add sandboxed_generator and build_runner to your pubspec.yaml:

dev_dependencies:
  build_runner: any
  sandboxed_generator: 

Replace {PATH_TO_REPO} with the path to your local clone.

🚀 What It Does #

• Scans for all Meta and Story declarations
• Automatically generates a full component registry
• Supports .mdx documentation attachment
• Merges with optional manual config
• Fully hot-reload compatible after initial generation

Usage #

1. Define your stories:

Meta get meta => Meta<MyWidget>(name: 'My Widget');

Story get $Primary => Story(
  builder: (context, params) => MyWidget(),
);

2. Run the generator:

flutter pub run build_runner build

3. The generated registry will be picked placed at lib/components.g.dart files. You can pass it to Sandboxed.

import 'package:flutter/material.dart';
import 'package:sandboxed/sandboxed.dart';
import 'package:{your_package}/components.g.dart';

void main() {
  runApp(
    Sandboxed(
      title: Text("Brand Name"),
      components: components,
    ),
  );
}

🛠 Configuration #

You can optionally configure the generator with a build.yaml file to change:

• Output location (WIP)
• Entry point scanning behavior (WIP)
• Filtering rules (WIP)

🔗 Related Packages #

• sandboxed — Viewer App
• sandboxed_core — Meta / Story primitives
• sandboxed_ui_kit — Viewer UI components

📄 License #

MIT License © 2025 Sandboxed, Vadim Melnikov