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# Specify analysis options. | ||
# | ||
# For a list of lints, see: http://dart-lang.github.io/linter/lints/ | ||
# See the configuration guide for more | ||
# https://github.com/dart-lang/sdk/tree/main/pkg/analyzer#configuring-the-analyzer | ||
# | ||
# There are other similar analysis options files in the flutter repos, | ||
# which should be kept in sync with this file: | ||
# | ||
# - analysis_options.yaml (this file) | ||
# - https://github.com/flutter/plugins/blob/master/analysis_options.yaml | ||
# - https://github.com/flutter/engine/blob/master/analysis_options.yaml | ||
# - https://github.com/flutter/packages/blob/master/analysis_options.yaml | ||
# | ||
# This file contains the analysis options used for code in the flutter/flutter | ||
# repository. | ||
|
||
analyzer: | ||
language: | ||
strict-casts: true | ||
strict-raw-types: true | ||
errors: | ||
# treat missing required parameters as a warning (not a hint) | ||
missing_required_param: warning | ||
# treat missing returns as a warning (not a hint) | ||
missing_return: warning | ||
# allow having TODO comments in the code | ||
todo: ignore | ||
deprecated_member_use: ignore | ||
includes: package:flutter_lints/flutter.yaml | ||
|
||
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 | ||
- 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_double_and_int_checks | ||
- avoid_dynamic_calls | ||
- avoid_empty_else | ||
- avoid_equals_and_hash_code_on_mutable_classes | ||
- avoid_escaping_inner_quotes | ||
- 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_init_to_null | ||
- avoid_js_rounded_ints | ||
# - avoid_multiple_declarations_per_line # seems to be a stylistic choice we don't subscribe to | ||
- avoid_null_checks_in_equality_operators | ||
# - avoid_positional_boolean_parameters # would have been nice to enable this but by now there's too many places that break it | ||
- avoid_print | ||
# - avoid_private_typedef_functions # we prefer having typedef (discussion in https://github.com/flutter/flutter/pull/16356) | ||
- avoid_redundant_argument_values | ||
- avoid_relative_lib_imports | ||
- avoid_renaming_method_parameters | ||
- avoid_return_types_on_setters | ||
# - avoid_returning_null # still violated by some pre-nnbd code that we haven't yet migrated | ||
- 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 | ||
- avoid_shadowing_type_parameters | ||
- avoid_single_cascade_in_expression_statements | ||
- avoid_slow_async_io | ||
- avoid_type_to_string | ||
- avoid_types_as_parameter_names | ||
# - avoid_types_on_closure_parameters # conflicts with always_specify_types | ||
- avoid_unnecessary_containers | ||
- avoid_unused_constructor_parameters | ||
- avoid_void_async | ||
# - avoid_web_libraries_in_flutter # we use web libraries in web-specific code, and our tests prevent us from using them elsewhere | ||
- await_only_futures | ||
- camel_case_extensions | ||
- camel_case_types | ||
- cancel_subscriptions | ||
# - cascade_invocations # doesn't match the typical style of this repo | ||
- cast_nullable_to_non_nullable | ||
# - close_sinks # not reliable enough | ||
# - comment_references # blocked on https://github.com/dart-lang/linter/issues/1142 | ||
# - conditional_uri_does_not_exist # not yet tested | ||
# - 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 # not required by flutter style | ||
- depend_on_referenced_packages | ||
- deprecated_consistency | ||
# - diagnostic_describe_all_properties # enabled only at the framework level (packages/flutter/lib) | ||
- directives_ordering | ||
# - do_not_use_environment # there are appropriate times to use the environment, especially in our tests and build logic | ||
- empty_catches | ||
- empty_constructor_bodies | ||
- empty_statements | ||
- eol_at_end_of_file | ||
- exhaustive_cases | ||
- file_names | ||
- flutter_style_todos | ||
- hash_and_equals | ||
- implementation_imports | ||
# - invariant_booleans # too many false positives: https://github.com/dart-lang/linter/issues/811 | ||
- iterable_contains_unrelated_type | ||
# - join_return_with_assignment # not required by flutter style | ||
- leading_newlines_in_multiline_strings | ||
- library_names | ||
- library_prefixes | ||
- library_private_types_in_public_api | ||
# - lines_longer_than_80_chars # not required by flutter style | ||
- list_remove_unrelated_type | ||
# - literal_only_boolean_expressions # too many false positives: https://github.com/dart-lang/linter/issues/453 | ||
- 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_logic_in_create_state | ||
# - no_runtimeType_toString # ok in tests; we enable this only in packages/ | ||
- non_constant_identifier_names | ||
- noop_primitive_operations | ||
- null_check_on_nullable_type_parameter | ||
- null_closures | ||
# - omit_local_variable_types # opposite of always_specify_types | ||
# - one_member_abstracts # too many false positives | ||
# - only_throw_errors # https://github.com/flutter/flutter/issues/5792 | ||
- overridden_fields | ||
- package_api_docs | ||
- package_names | ||
- package_prefixed_library_names | ||
# - parameter_assignments # we do this commonly | ||
- prefer_adjacent_string_concatenation | ||
- prefer_asserts_in_initializer_lists | ||
# - prefer_asserts_with_message # not required by flutter style | ||
- prefer_collection_literals | ||
- prefer_conditional_assignment | ||
- prefer_const_constructors | ||
- prefer_const_constructors_in_immutables | ||
- prefer_const_declarations | ||
- prefer_const_literals_to_create_immutables | ||
# - 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_for_elements_to_map_fromIterable | ||
- prefer_foreach | ||
- prefer_function_declarations_over_variables | ||
- prefer_generic_function_type_aliases | ||
- prefer_if_elements_to_conditional_expressions | ||
- prefer_if_null_operators | ||
- prefer_initializing_formals | ||
- prefer_inlined_adds | ||
# - prefer_int_literals # conflicts with https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo#use-double-literals-for-double-constants | ||
- prefer_interpolation_to_compose_strings | ||
- prefer_is_empty | ||
- 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_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 | ||
- prefer_single_quotes | ||
- prefer_spread_collections | ||
- prefer_typing_uninitialized_variables | ||
- prefer_void_to_null | ||
- provide_deprecation_message | ||
# - public_member_api_docs # enabled on a case-by-case basis; see e.g. packages/analysis_options.yaml | ||
- recursive_getters | ||
- require_trailing_commas | ||
- secure_pubspec_urls | ||
- sized_box_for_whitespace | ||
# - sized_box_shrink_expand # not yet tested | ||
- slash_for_doc_comments | ||
- sort_child_properties_last | ||
- sort_constructors_first | ||
# - sort_pub_dependencies # prevents separating pinned transitive dependencies | ||
- sort_unnamed_constructors_first | ||
- test_types_in_equals | ||
- throw_in_finally | ||
- tighten_type_of_initializing_formals | ||
# - type_annotate_public_apis # subset of always_specify_types | ||
- type_init_formals | ||
# - unawaited_futures # too many false positives, especially with the way AnimationController works | ||
- unnecessary_await_in_return | ||
- unnecessary_brace_in_string_interps | ||
- 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_new | ||
- unnecessary_null_aware_assignments | ||
- unnecessary_null_checks | ||
- unnecessary_null_in_if_null_operators | ||
- unnecessary_nullable_for_final_variable_declarations | ||
- unnecessary_overrides | ||
- unnecessary_parenthesis | ||
# - unnecessary_raw_strings # what's "necessary" is a matter of opinion; consistency across strings can help readability more than this lint | ||
- unnecessary_statements | ||
- unnecessary_string_escapes | ||
- unnecessary_string_interpolations | ||
- unnecessary_this | ||
- 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_full_hex_values_for_flutter_colors | ||
- use_function_type_syntax_for_parameters | ||
- use_if_null_to_convert_nulls_to_bools | ||
- use_is_even_rather_than_modulo | ||
- use_key_in_widget_constructors | ||
- use_late_for_private_fields_and_variables | ||
- use_named_constants | ||
- use_raw_strings | ||
- use_rethrow_when_possible | ||
- use_setters_to_change_properties | ||
# - use_string_buffers # has false positives: https://github.com/dart-lang/sdk/issues/34182 | ||
- use_test_throws_matchers | ||
# - use_to_and_as_if_applicable # has false positives, so we prefer to catch this by code-review | ||
- valid_regexps | ||
- void_checks | ||
always_declare_return_types: true | ||
flutter_style_todos: true | ||
library_private_types_in_public_api: false | ||
prefer_final_fields: true | ||
prefer_final_in_for_each: true | ||
prefer_final_locals: true | ||
prefer_single_quotes: true | ||
require_trailing_commas: true | ||
sort_child_properties_last: true | ||
sort_constructors_first: true | ||
sort_unnamed_constructors_first: true | ||
unnecessary_late: true | ||
use_build_context_synchronously: false |
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