[various] Sync lints with flutter/flutter

analysis_options.yaml

@@ -1,13 +1,14 @@
 # Specify analysis options.
 #
 # This file is a copy of analysis_options.yaml from flutter repo
-# as of 2022-07-27, but with some modifications marked with
+# as of 2023-12-18, but with some modifications marked with
 # "DIFFERENT FROM FLUTTER/FLUTTER" below. The file is expected to
 # be kept in sync with the master file from the flutter repo.
 
 analyzer:
   language:
     strict-casts: true
+    strict-inference: true
     strict-raw-types: true
   errors:
     # allow self-reference to deprecated members (we do this because otherwise we have
@@ -21,19 +22,18 @@ analyzer:
 linter:
   rules:
     # This list is derived from the list of all available lints located at
-    # https://github.com/dart-lang/linter/blob/master/example/all.yaml
+    # https://github.com/dart-lang/linter/blob/main/example/all.yaml
     - always_declare_return_types
     - always_put_control_body_on_new_line
     # - always_put_required_named_parameters_first # we prefer having parameters in the same order as fields https://github.com/flutter/flutter/issues/10219
-    - always_require_non_null_named_parameters
     - always_specify_types
     # - always_use_package_imports # we do this commonly
     - annotate_overrides
     # - avoid_annotating_with_dynamic # conflicts with always_specify_types
     - avoid_bool_literals_in_conditional_expressions
     # - avoid_catches_without_on_clauses # blocked on https://github.com/dart-lang/linter/issues/3023
     # - avoid_catching_errors # blocked on https://github.com/dart-lang/linter/issues/3023
-    - avoid_classes_with_only_static_members
+    # - avoid_classes_with_only_static_members # we do this commonly for `abstract final class`es
     - avoid_double_and_int_checks
     - avoid_dynamic_calls
     - avoid_empty_else
@@ -42,7 +42,7 @@ linter:
     - avoid_field_initializers_in_const_classes
     # - avoid_final_parameters # incompatible with prefer_final_parameters
     - avoid_function_literals_in_foreach_calls
-    - avoid_implementing_value_types
+    # - avoid_implementing_value_types # see https://github.com/dart-lang/linter/issues/4558
     - avoid_init_to_null
     - avoid_js_rounded_ints
     # - avoid_multiple_declarations_per_line # seems to be a stylistic choice we don't subscribe to
@@ -54,8 +54,6 @@ linter:
     - avoid_relative_lib_imports
     - avoid_renaming_method_parameters
     - avoid_return_types_on_setters
-    - avoid_returning_null
-    - avoid_returning_null_for_future
     - avoid_returning_null_for_void
     # - avoid_returning_this # there are enough valid reasons to return `this` that this lint ends up with too many false positives
     - avoid_setters_without_getters
@@ -77,17 +75,19 @@ linter:
     - cast_nullable_to_non_nullable
     # - close_sinks # not reliable enough
     - collection_methods_unrelated_type
-    # - combinators_ordering # DIFFERENT FROM FLUTTER/FLUTTER: This isn't available on stable yet.
+    - combinators_ordering
     # - comment_references # blocked on https://github.com/dart-lang/linter/issues/1142
     - conditional_uri_does_not_exist
     # - constant_identifier_names # needs an opt-out https://github.com/dart-lang/linter/issues/204
     - control_flow_in_finally
     - curly_braces_in_flow_control_structures
+    - dangling_library_doc_comments
     - depend_on_referenced_packages
     - deprecated_consistency
+    # - deprecated_member_use_from_same_package # we allow self-references to deprecated members
     # - diagnostic_describe_all_properties # enabled only at the framework level (packages/flutter/lib)
     - directives_ordering
-    # - discarded_futures # not yet tested
+    # - discarded_futures # too many false positives, similar to unawaited_futures
     # - do_not_use_environment # there are appropriate times to use the environment, especially in our tests and build logic
     - empty_catches
     - empty_constructor_bodies
@@ -98,21 +98,29 @@ linter:
     - flutter_style_todos
     - hash_and_equals
     - implementation_imports
+    - implicit_call_tearoffs
+    - implicit_reopen
+    - invalid_case_patterns
     # - join_return_with_assignment # not required by flutter style
     - leading_newlines_in_multiline_strings
+    - library_annotations
     - library_names
     - library_prefixes
     - library_private_types_in_public_api
     # - lines_longer_than_80_chars # not required by flutter style
-    # - literal_only_boolean_expressions # too many false positives: https://github.com/dart-lang/linter/issues/453
+    - literal_only_boolean_expressions
+    # - matching_super_parameters # blocked on https://github.com/dart-lang/language/issues/2509
     - missing_whitespace_between_adjacent_strings
     - no_adjacent_strings_in_list
     - no_default_cases
     - no_duplicate_case_values
     - no_leading_underscores_for_library_prefixes
     - no_leading_underscores_for_local_identifiers
+    - no_literal_bool_comparisons
     - no_logic_in_create_state
     - no_runtimeType_toString # DIFFERENT FROM FLUTTER/FLUTTER
+    - no_self_assignments
+    - no_wildcard_variable_uses
     - non_constant_identifier_names
     - noop_primitive_operations
     - null_check_on_nullable_type_parameter
@@ -137,12 +145,11 @@ linter:
     # - prefer_constructors_over_static_methods # far too many false positives
     - prefer_contains
     # - prefer_double_quotes # opposite of prefer_single_quotes
-    - prefer_equal_for_default_values
     # - prefer_expression_function_bodies # conflicts with https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo#consider-using--for-short-functions-and-methods
     - prefer_final_fields
     - prefer_final_in_for_each
     - prefer_final_locals
-    # - prefer_final_parameters # we should enable this one day when it can be auto-fixed (https://github.com/dart-lang/linter/issues/3104), see also parameter_assignments
+    # - prefer_final_parameters # adds too much verbosity
     - prefer_for_elements_to_map_fromIterable
     - prefer_foreach
     - prefer_function_declarations_over_variables
@@ -157,7 +164,7 @@ linter:
     - prefer_is_not_empty
     - prefer_is_not_operator
     - prefer_iterable_whereType
-    # - prefer_mixin # Has false positives, see https://github.com/dart-lang/linter/issues/3018
+    # - prefer_mixin # DIFFERENT FROM FLUTTER/FLUTTER: enable when v2.1.7 of plugin_platform_interface is the oldest supported version (which makes MockPlatformInterfaceMixin a mixin class)
     # - prefer_null_aware_method_calls # "call()" is confusing to people new to the language since it's not documented anywhere
     - prefer_null_aware_operators
     - prefer_relative_imports
@@ -168,10 +175,10 @@ linter:
     - provide_deprecation_message
     - public_member_api_docs # DIFFERENT FROM FLUTTER/FLUTTER
     - recursive_getters
-    # - require_trailing_commas # blocked on https://github.com/dart-lang/sdk/issues/47441
+    # - require_trailing_commas # would be nice, but requires a lot of manual work: 10,000+ code locations would need to be reformatted by hand after bulk fix is applied
     - secure_pubspec_urls
     - sized_box_for_whitespace
-    # - sized_box_shrink_expand # not yet tested
+    - sized_box_shrink_expand
     - slash_for_doc_comments
     - sort_child_properties_last
     - sort_constructors_first
@@ -182,15 +189,18 @@ linter:
     - tighten_type_of_initializing_formals
     # - type_annotate_public_apis # subset of always_specify_types
     - type_init_formals
+    - type_literal_in_constant_pattern
     - unawaited_futures # DIFFERENT FROM FLUTTER/FLUTTER: It's disabled there for "too many false positives"; that's not an issue here, and missing awaits have caused production issues in plugins.
     - unnecessary_await_in_return
     - unnecessary_brace_in_string_interps
+    - unnecessary_breaks
     - unnecessary_const
     - unnecessary_constructor_name
     # - unnecessary_final # conflicts with prefer_final_locals
     - unnecessary_getters_setters
     # - unnecessary_lambdas # has false positives: https://github.com/dart-lang/linter/issues/498
     - unnecessary_late
+    - unnecessary_library_directive
     - unnecessary_new
     - unnecessary_null_aware_assignments
     - unnecessary_null_aware_operator_on_extension_on_nullable
@@ -205,12 +215,13 @@ linter:
     - unnecessary_string_interpolations
     - unnecessary_this
     - unnecessary_to_list_in_spreads
+    - unreachable_from_main
     - unrelated_type_equality_checks
     - unsafe_html
     - use_build_context_synchronously
-    # - use_colored_box # not yet tested
-    # - use_decorated_box # not yet tested
-    # - use_enums # not yet tested
+    - use_colored_box
+    # - use_decorated_box # leads to bugs: DecoratedBox and Container are not equivalent (Container inserts extra padding)
+    - use_enums
     - use_full_hex_values_for_flutter_colors
     - use_function_type_syntax_for_parameters
     - use_if_null_to_convert_nulls_to_bools
@@ -222,6 +233,7 @@ linter:
     - use_rethrow_when_possible
     - use_setters_to_change_properties
     # - use_string_buffers # has false positives: https://github.com/dart-lang/sdk/issues/34182
+    - use_string_in_part_of_directives
     - use_super_parameters
     - use_test_throws_matchers
     # - use_to_and_as_if_applicable # has false positives, so we prefer to catch this by code-review

packages/animations/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.11
+
+* Fixes new lint warnings.
+
 ## 2.0.10
 
 * Updates minimum supported SDK version to Flutter 3.16/Dart 3.2.

packages/animations/example/lib/container_transition.dart

@@ -312,7 +312,7 @@ class _ExampleCard extends StatelessWidget {
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: <Widget>[
           Expanded(
-            child: Container(
+            child: ColoredBox(
               color: Colors.black38,
               child: Center(
                 child: Image.asset(

packages/animations/example/lib/fade_through_transition.dart

@@ -79,7 +79,7 @@ class _ExampleCard extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.stretch,
               children: <Widget>[
                 Expanded(
-                  child: Container(
+                  child: ColoredBox(
                     color: Colors.black26,
                     child: Padding(
                       padding: const EdgeInsets.all(30.0),

packages/animations/lib/src/fade_through_transition.dart

@@ -201,7 +201,7 @@ class FadeThroughTransition extends StatelessWidget {
   Widget build(BuildContext context) {
     return _ZoomedFadeInFadeOut(
       animation: animation,
-      child: Container(
+      child: ColoredBox(
         color: fillColor ?? Theme.of(context).canvasColor,
         child: _ZoomedFadeInFadeOut(
           animation: ReverseAnimation(secondaryAnimation),

packages/animations/lib/src/open_container.dart

@@ -604,10 +604,8 @@ class _OpenContainerRoute<T> extends ModalRoute<T> {
       switch (status) {
         case AnimationStatus.dismissed:
           _toggleHideable(hide: false);
-          break;
         case AnimationStatus.completed:
           _toggleHideable(hide: true);
-          break;
         case AnimationStatus.forward:
         case AnimationStatus.reverse:
           break;
@@ -699,23 +697,19 @@ class _OpenContainerRoute<T> extends ModalRoute<T> {
       case AnimationStatus.completed:
       case AnimationStatus.dismissed:
         isInProgress = false;
-        break;
       case AnimationStatus.forward:
       case AnimationStatus.reverse:
         isInProgress = true;
-        break;
       case null:
         break;
     }
     switch (_lastAnimationStatus) {
       case AnimationStatus.completed:
       case AnimationStatus.dismissed:
         wasInProgress = false;
-        break;
       case AnimationStatus.forward:
       case AnimationStatus.reverse:
         wasInProgress = true;
-        break;
       case null:
         break;
     }
@@ -769,7 +763,6 @@ class _OpenContainerRoute<T> extends ModalRoute<T> {
               openOpacityTween = _openOpacityTween;
               colorTween = _colorTween;
               scrimTween = _scrimFadeInTween;
-              break;
             case AnimationStatus.reverse:
               if (_transitionWasInterrupted) {
                 closedOpacityTween = _closedOpacityTween;
@@ -782,10 +775,8 @@ class _OpenContainerRoute<T> extends ModalRoute<T> {
               openOpacityTween = _openOpacityTween.flipped;
               colorTween = _colorTween.flipped;
               scrimTween = _scrimFadeOutTween;
-              break;
             case AnimationStatus.completed:
               assert(false); // Unreachable.
-              break;
           }
           assert(colorTween != null);
           assert(closedOpacityTween != null);

packages/animations/lib/src/shared_axis_transition.dart

@@ -410,7 +410,7 @@ class _ExitTransition extends StatelessWidget {
 
         return FadeTransition(
           opacity: _fadeOutTransition.animate(animation),
-          child: Container(
+          child: ColoredBox(
             color: fillColor,
             child: AnimatedBuilder(
               animation: animation,
@@ -432,7 +432,7 @@ class _ExitTransition extends StatelessWidget {
 
         return FadeTransition(
           opacity: _fadeOutTransition.animate(animation),
-          child: Container(
+          child: ColoredBox(
             color: fillColor,
             child: AnimatedBuilder(
               animation: animation,
@@ -449,7 +449,7 @@ class _ExitTransition extends StatelessWidget {
       case SharedAxisTransitionType.scaled:
         return FadeTransition(
           opacity: _fadeOutTransition.animate(animation),
-          child: Container(
+          child: ColoredBox(
             color: fillColor,
             child: ScaleTransition(
               scale: (!reverse ? _scaleUpTransition : _scaleDownTransition)

packages/animations/pubspec.yaml

@@ -2,7 +2,7 @@ name: animations
 description: Fancy pre-built animations that can easily be integrated into any Flutter application.
 repository: https://github.com/flutter/packages/tree/main/packages/animations
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+animations%22
-version: 2.0.10
+version: 2.0.11
 
 environment:
   sdk: ">=3.2.0 <4.0.0"