lintel 0.1.0

Analyzer plugin that enforces cohesive Flutter application architecture.

example/README.md

Lintel example

Enable the plugin and the diagnostics that represent your architecture in the root analysis_options.yaml:

plugins:
  lintel:
    version: ^0.1.0
    diagnostics:
      cubit_state_ownership: true
      dependency_direction: true
      file_line_count: true
      maintainability_limits: true
      no_bloc_to_bloc_dependencies: true
      visual_grouping: true

The diagnostics appear in the editor and in dart analyze. For example, this Cubit-owned mutable value is reported:

class LibraryCubit extends Cubit<LibraryState> {
  LibraryCubit() : super(const LibraryState());

  int selectedIndex = 0;
}

Keep mutable feature data in immutable state instead:

class LibraryCubit extends Cubit<LibraryState> {
  LibraryCubit() : super(const LibraryState());

  void selectBook(int index) {
    emit(state.copyWith(selectedIndex: index));
  }
}

Numeric thresholds have built-in defaults. To customize them, add an optional lintel.yaml next to analysis_options.yaml:

limits:
  file_lines: 300
  class_lines: 300
  behavior_method_lines: 30
  build_method_lines: 90
  consecutive_nonblank_lines: 15
  parameters: 5
  test_lines: 25

See the complete rule index for every diagnostic, its scope, and good and bad examples.