# Specify analysis options.
#
# This file is a copy of analysis_options_repo.yaml from flutter repo
# as of 2018-05-30, but with:
#  - "always_require_non_null_named_parameters" disabled (because we
#    can't import the meta package from the SDK), and
#  - "sort_constructors_first" disabled (because we have private fake
#     constructors),
#  - "prefer_final_fields" disabled (because we do weird things with
#    private fields, especially on the PlatformDispatcher object):

analyzer:
  enable-experiment:
    - non-nullable
  exclude: [
    # this test pretends to be part of dart:ui and results in lots of false
    # positives.
    testing/dart/window_hooks_integration_test.dart,
    # Fixture depends on dart:ui and raises false positives.
    flutter_frontend_server/test/fixtures/lib/main.dart
  ]
  strong-mode:
    implicit-casts: false
    implicit-dynamic: false
  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
    native_function_body_in_non_sdk_code: ignore
    # allow having TODOs in the code
    todo: ignore
    # allow dart:ui to import dart:_internal
    import_internal_library: ignore
  # `flutter analyze` (without `--watch`) just ignores directories
  # that contain a .dartignore file, and this file does not have any
  # effect on what files are actually analyzed.

linter:
  rules:
    # these rules are documented on and in the same order as
    # the Dart Lint rules page to make maintenance easier
    # 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 # DIFFERENT FROM FLUTTER/FLUTTER
    - always_specify_types
    - annotate_overrides
    # - avoid_annotating_with_dynamic # conflicts with always_specify_types
    # - avoid_as # required for implicit-casts: false
    # - avoid_bool_literals_in_conditional_expressions # not yet tested
    # - avoid_catches_without_on_clauses # we do this commonly
    # - avoid_catching_errors # we do this commonly
    - avoid_classes_with_only_static_members # We want to avoid classes that can be instantiated but only have statics
    - avoid_empty_else
    - avoid_function_literals_in_foreach_calls
    - avoid_init_to_null
    - avoid_null_checks_in_equality_operators
    # - avoid_positional_boolean_parameters # not yet tested
    # - avoid_private_typedef_functions # we prefer having typedef (discussion in https://github.com/flutter/flutter/pull/16356)
    - avoid_relative_lib_imports
    - avoid_renaming_method_parameters
    - avoid_return_types_on_setters
    # - avoid_returning_null # we do this commonly
    # - avoid_returning_this # https://github.com/dart-lang/linter/issues/842
    # - avoid_setters_without_getters # not yet tested
    # - avoid_single_cascade_in_expression_statements # not yet tested
    - avoid_slow_async_io
    # - avoid_types_as_parameter_names # https://github.com/dart-lang/linter/pull/954/files
    # - avoid_types_on_closure_parameters # conflicts with always_specify_types
    # - avoid_unused_constructor_parameters # https://github.com/dart-lang/linter/pull/847
    - await_only_futures
    - camel_case_types
    - cancel_subscriptions
    # - cascade_invocations # not yet tested
    # - close_sinks # https://github.com/flutter/flutter/issues/5789
    # - comment_references # blocked on https://github.com/dart-lang/dartdoc/issues/1153
    # - constant_identifier_names # https://github.com/dart-lang/linter/issues/204
    - control_flow_in_finally
    - directives_ordering
    - empty_catches
    - empty_constructor_bodies
    - empty_statements
    - hash_and_equals
    - implementation_imports
    # - invariant_booleans # https://github.com/flutter/flutter/issues/5790
    - iterable_contains_unrelated_type
    # - join_return_with_assignment # not yet tested
    - library_names
    - library_prefixes
    - list_remove_unrelated_type
    # - literal_only_boolean_expressions # https://github.com/flutter/flutter/issues/5791
    - no_adjacent_strings_in_list
    - no_duplicate_case_values
    - non_constant_identifier_names
    # - 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_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 # not yet tested
    - prefer_contains
    - 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 # DIFFERENT FROM FLUTTER/FLUTTER
    - prefer_final_locals
    - prefer_foreach
    # - prefer_function_declarations_over_variables # not yet tested
    - prefer_generic_function_type_aliases
    - prefer_initializing_formals
    # - prefer_interpolation_to_compose_strings # not yet tested
    - prefer_is_empty
    - prefer_is_not_empty
    - prefer_single_quotes
    - prefer_typing_uninitialized_variables
    - public_member_api_docs # this is the only difference from analysis_options.yaml
    - recursive_getters
    - slash_for_doc_comments
    # - sort_constructors_first # DIFFERENT FROM FLUTTER/FLUTTER
    - sort_unnamed_constructors_first
    - test_types_in_equals
    - throw_in_finally
    # - type_annotate_public_apis # subset of always_specify_types
    - type_init_formals
    # - unawaited_futures # https://github.com/flutter/flutter/issues/5793
    - unnecessary_brace_in_string_interps
    - unnecessary_const
    - unnecessary_getters_setters
    # - unnecessary_lambdas # https://github.com/dart-lang/linter/issues/498
    - unnecessary_new
    - unnecessary_null_aware_assignments
    - unnecessary_null_in_if_null_operators
    - unnecessary_overrides
    - unnecessary_parenthesis
    # - unnecessary_statements # not yet tested
    - unnecessary_this
    - unrelated_type_equality_checks
    - use_rethrow_when_possible
    # - use_setters_to_change_properties # not yet tested
    # - use_string_buffers # https://github.com/dart-lang/linter/pull/664
    # - use_to_and_as_if_applicable # has false positives, so we prefer to catch this by code-review
    - valid_regexps