waste_lens_lints 0.1.0

custom_lint rules for waste_lens: missing dispose, non-const widgets, setState during build, and images without cache dimensions.

example/README.md

waste_lens_lints example

Enable the rules in any Flutter package.

pubspec.yaml:

dev_dependencies:
  waste_lens_lints: ^0.1.0
  custom_lint: ^0.8.1

analysis_options.yaml:

analyzer:
  plugins:
    - custom_lint

Then run:

dart run custom_lint

What gets flagged

class _MyState extends State<MyWidget> {
  final controller = TextEditingController(); // dispose_required: never disposed

  @override
  Widget build(BuildContext context) {
    setState(() {}); // no_setstate_in_build

    return Column(
      children: [
        Text('static'),                         // prefer_const_widget
        Image.network('https://x/y.png'),       // image_needs_cache_dimensions
      ],
    );
  }
}

Runnable good/bad fixtures for every rule live in test/fixtures/.