fd_lints

Description:

fd lints

fd_lints #






An opiniated set of lint rules for Dart and Flutter projects. Made by yours truly Floating Dartists.
You can use 2 different sets of rules:

dart: for Dart projects
flutter: for Flutter projects (includes dart rules)

Installing fd_lints #

Add both fd_lints and custom_lint to your pubspec.yaml file:

dev_dependencies:
custom_lint:
fd_lints:
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Include the set of rules you want to use and enable custom_lint's plugin in your analysis_options.yaml file:

include: package:fd_lints/dart.yaml # Recommended for Dart projects
# include: package:fd_lints/flutter.yaml # Recommended for Flutter projects

analyzer:
plugins:
- custom_lint
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Analyzer #
Language #
Stricter type check is enabled by default. Applying the following rules:

strict-casts
strict-inference
strict-raw-types

Exclude #
The following files are excluded by default:

**/*.g.dart
**/*.freezed.dart, exclude files generated by freezed
**/*.mocks.dart, exclude files generated by mockito
**/*.mapper.dart, exclude files generated by dart_mappable
**/*.tailor.dart, exclude files generated by theme_tailor

Linter rules #

ℹ️ : info
⚠️ : warning
❌ : error

Custom #
Those rules were created by us by using the custom_lint package.



Rule
Severity




avoid_non_null_assertion
⚠️


avoid_as
⚠️


use_const_on_env_constructors
❌



Dart #



Rule
Severity




always_use_package_imports
ℹ️


avoid_dynamic_calls
ℹ️


avoid_empty_else
ℹ️


avoid_relative_lib_imports
ℹ️


avoid_slow_async_io
⚠️


avoid_types_as_parameter_names
ℹ️


cancel_subscriptions
⚠️


close_sinks
⚠️


control_flow_in_finally
ℹ️


collection_methods_unrelated_type
❌


empty_statements
ℹ️


hash_and_equals
⚠️


literal_only_boolean_expressions
ℹ️


no_duplicate_case_values
ℹ️


prefer_void_to_null
ℹ️


test_types_in_equals
⚠️


unnecessary_statements
ℹ️


unrelated_type_equality_checks
❌


valid_regexps
ℹ️


always_declare_return_types
ℹ️


annotate_overrides
ℹ️


avoid_annotating_with_dynamic
⚠️


avoid_bool_literals_in_conditional_expressions
ℹ️


avoid_catching_errors
⚠️


avoid_classes_with_only_static_members
ℹ️


avoid_double_and_int_checks
ℹ️


avoid_equals_and_hash_code_on_mutable_classes
ℹ️


avoid_escaping_inner_quotes
ℹ️


avoid_field_initializers_in_const_classes
ℹ️


avoid_final_parameters
ℹ️


avoid_init_to_null
ℹ️


avoid_multiple_declarations_per_line
ℹ️


avoid_null_checks_in_equality_operators
⚠️


avoid_positional_boolean_parameters
ℹ️


avoid_redundant_argument_values
ℹ️


avoid_renaming_method_parameters
ℹ️


avoid_return_types_on_setters
ℹ️


avoid_returning_null_for_void
ℹ️


avoid_shadowing_type_parameters
⚠️


avoid_single_cascade_in_expression_statements
ℹ️


avoid_unused_constructor_parameters
ℹ️


avoid_void_async
⚠️


await_only_futures
❌


camel_case_extensions
ℹ️


camel_case_types
ℹ️


cascade_invocations
ℹ️


cast_nullable_to_non_nullable
❌


combinators_ordering
ℹ️


conditional_uri_does_not_exist
❌


constant_identifier_names
ℹ️


curly_braces_in_flow_control_structures
ℹ️


deprecated_consistency
ℹ️


directives_ordering
ℹ️


empty_catches
ℹ️


empty_constructor_bodies
ℹ️


eol_at_end_of_file
ℹ️


exhaustive_cases
⚠️


file_names
ℹ️


implementation_imports
ℹ️


implicit_call_tearoffs
ℹ️


join_return_with_assignment
ℹ️


leading_newlines_in_multiline_strings
ℹ️


library_names
ℹ️


library_prefixes
ℹ️


library_private_types_in_public_api
ℹ️


no_leading_underscores_for_library_prefixes
ℹ️


no_leading_underscores_for_local_identifiers
ℹ️


no_runtimeType_toString
⚠️


non_constant_identifier_names
ℹ️


noop_primitive_operations
ℹ️


null_check_on_nullable_type_parameter
❌


null_closures
❌


only_throw_errors
⚠️


overridden_fields
ℹ️


package_prefixed_library_names
ℹ️


parameter_assignments
⚠️


prefer_adjacent_string_concatenation
ℹ️


prefer_asserts_in_initializer_lists
ℹ️


prefer_collection_literals
ℹ️


prefer_conditional_assignment
ℹ️


prefer_const_constructors
ℹ️


prefer_const_declarations
ℹ️


prefer_constructors_over_static_methods
ℹ️


prefer_contains
⚠️


prefer_final_fields
ℹ️


prefer_final_in_for_each
ℹ️


prefer_final_locals
ℹ️


prefer_for_elements_to_map_fromIterable
⚠️


prefer_function_declarations_over_variables
ℹ️


prefer_generic_function_type_aliases
ℹ️


prefer_if_elements_to_conditional_expressions
ℹ️


prefer_if_null_operators
ℹ️


prefer_initializing_formals
ℹ️


prefer_inlined_adds
ℹ️


prefer_int_literals
ℹ️


prefer_interpolation_to_compose_strings
ℹ️


prefer_is_empty
⚠️


prefer_is_not_empty
⚠️


prefer_is_not_operator
ℹ️


prefer_iterable_whereType
ℹ️


prefer_mixin
ℹ️


prefer_null_aware_method_calls
❌


prefer_null_aware_operators
❌


prefer_spread_collections
ℹ️


prefer_typing_uninitialized_variables
❌


provide_deprecation_message
ℹ️


recursive_getters
❌


require_trailing_commas
ℹ️


slash_for_doc_comments
ℹ️


sort_constructors_first
ℹ️


sort_unnamed_constructors_first
ℹ️


tighten_type_of_initializing_formals
❌


type_annotate_public_apis
❌


type_init_formals
ℹ️


unawaited_futures
⚠️


unnecessary_await_in_return
ℹ️


unnecessary_brace_in_string_interps
ℹ️


unnecessary_breaks
ℹ️


unnecessary_const
ℹ️


unnecessary_constructor_name
ℹ️


unnecessary_getters_setters
ℹ️


unnecessary_lambdas
ℹ️


unnecessary_late
ℹ️


unnecessary_new
ℹ️


unnecessary_null_aware_assignments
ℹ️


unnecessary_null_aware_operator_on_extension_on_nullable
ℹ️


unnecessary_null_checks
ℹ️


unnecessary_null_in_if_null_operators
ℹ️


unnecessary_nullable_for_final_variable_declarations
ℹ️


unnecessary_overrides
ℹ️


unnecessary_parenthesis
ℹ️


unnecessary_raw_strings
ℹ️


unnecessary_string_escapes
ℹ️


unnecessary_string_interpolations
ℹ️


unnecessary_this
ℹ️


unnecessary_to_list_in_spreads
ℹ️


use_enums
⚠️


use_function_type_syntax_for_parameters
ℹ️


use_if_null_to_convert_nulls_to_bools
ℹ️


use_is_even_rather_than_modulo
ℹ️


use_late_for_private_fields_and_variables
ℹ️


use_named_constants
ℹ️


use_rethrow_when_possible
ℹ️


use_setters_to_change_properties
ℹ️


use_string_buffers
⚠️


use_string_in_part_of_directives
ℹ️


use_super_parameters
ℹ️


use_test_throws_matchers
ℹ️


void_checks
ℹ️


invalid_use_of_visible_for_testing_member
❌


missing_return
❌


missing_required_param
❌


invalid_annotation_target
ignored



Flutter #



Rule
Severity




avoid_print
ℹ️


avoid_web_libraries_in_flutter
ℹ️


avoid_unnecessary_containers
ℹ️


no_logic_in_create_state
ℹ️


use_build_context_synchronously
❌


use_key_in_widget_constructors
ℹ️


avoid_function_literals_in_foreach_calls
ℹ️


avoid_js_rounded_ints
⚠️


sized_box_for_whitespace
ℹ️


sized_box_shrink_expand
ℹ️


sort_child_properties_last
ℹ️


use_colored_box
ℹ️


use_decorated_box
ℹ️


use_full_hex_values_for_flutter_colors
⚠️


prefer_const_constructors_in_immutables
ℹ️


prefer_const_literals_to_create_immutables
ℹ️


flutter_style_todos
ℹ️