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analyzer:
strong-mode: true
linter:
rules:
- always_declare_return_types
- always_specify_types
- annotate_overrides
- avoid_as
- avoid_empty_else
- avoid_init_to_null
- avoid_return_types_on_setters
- await_only_futures
- camel_case_types
- cancel_subscriptions
- close_sinks
- comment_references
- constant_identifier_names
- control_flow_in_finally
- empty_catches
- empty_constructor_bodies
- empty_statements
- hash_and_equals
- implementation_imports
- iterable_contains_unrelated_type
- library_names
- library_prefixes
- list_remove_unrelated_type
- non_constant_identifier_names
- one_member_abstracts
- only_throw_errors
- overridden_fields
- package_api_docs
- package_names
- package_prefixed_library_names
- prefer_is_not_empty
- public_member_api_docs
- slash_for_doc_comments
- sort_constructors_first
- sort_unnamed_constructors_first
- super_goes_last
- test_types_in_equals
- throw_in_finally
- type_annotate_public_apis
- type_init_formals
- unawaited_futures
- unnecessary_brace_in_string_interp
- unnecessary_getters_setters
- unrelated_type_equality_checks
- valid_regexps
  • copy these files into a new directory (make sure lib_main.dart is placed in lib/main.dart)

  • make sure you have a copy of flutter cloned and the tools on your path

  • run dartanalyzer lib/main.dart and notice NO WARNINGS

  • run flutter packages get

  • run dartanalyzer lib/main.dart and notice WARNINGS

  • open .packages

  • comment out the line for sky_engine

  • run dartanalyzer lib/main.dart and notice NO WARNINGS

For some reason, including sky_engine in your .packages is enough to trigger the warning.

class Foo {}
class Bar extends Foo {
Bar(f) {}
}
main() {
List<Foo> fooList = <Foo>[new Foo(), new Foo(), new Foo()];
List<Bar> barList = fooList.map((Foo f) => new Bar(f)).toList();
print(barList);
}
name: repocase
dependencies:
flutter:
sdk: flutter
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