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.

waste_lens_lints

custom_lint rules for waste_lens — the static half of the toolkit. Catch waste before it runs.

Install

dev_dependencies:
  waste_lens_lints: ^0.1.0
  custom_lint: ^0.8.1

Enable the plugin in analysis_options.yaml:

analyzer:
  plugins:
    - custom_lint

Run from the CLI:

dart run custom_lint

Rules

Rule	Flags
no_setstate_in_build	setState() called synchronously during build() — forces an immediate, wasted rebuild.
dispose_required	A disposable State field never released in dispose().
image_needs_cache_dimensions	Image.network / Image.asset without cacheWidth / cacheHeight.
prefer_const_widget	A widget with only constant arguments and a const constructor that isn't const.

prefer_const_widget is conservative by design: it only fires when the static type is a Widget, the constructor is const, and every argument is a compile-time constant — so the suggestion is always safe (and it never mis-fires on non-const constructors like Image.network).

License

MIT.