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analysis_options.yaml
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analysis_options.yaml
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include: package:lints/recommended.yaml
analyzer:
exclude: ["build/**"]
language:
strict-casts: true
strict-inference: true
strict-raw-types: true
errors:
# always_use_package_imports: error
# avoid_dynamic_calls: error
avoid_empty_else: error
# avoid_print: error
avoid_relative_lib_imports: error
# avoid_returning_null_for_future: error
# avoid_slow_async_io: error
# avoid_type_to_string: error
avoid_types_as_parameter_names: error
# avoid_web_libraries_in_flutter: error
# cancel_subscriptions: error
# close_sinks: error
# collection_methods_unrelated_type: error
# comment_references: error
control_flow_in_finally: error
# diagnostic_describe_all_properties: error
# discarded_futures: error
empty_statements: error
hash_and_equals: error
# invariant_booleans: error
iterable_contains_unrelated_type: error
list_remove_unrelated_type: error
# literal_only_boolean_expressions: error
# no_adjacent_strings_in_list: error
no_duplicate_case_values: error
# no_logic_in_create_state: error
# prefer_relative_imports: error
prefer_void_to_null: error
# test_types_in_equals: error
# throw_in_finally: error
# unnecessary_statements: error
unrelated_type_equality_checks: error
# unsafe_html: error
# use_build_context_synchronously: error
# use_key_in_widget_constructors: error
valid_regexps: error
# always_declare_return_types: error
# always_put_control_body_on_new_line: error
# always_put_required_named_parameters_first: error
always_require_non_null_named_parameters: error
# always_specify_types: error
annotate_overrides: error
# avoid_annotating_with_dynamic: error
# avoid_as: error
# avoid_bool_literals_in_conditional_expressions: error
# avoid_catches_without_on_clauses: error
# avoid_catching_errors: error
# avoid_classes_with_only_static_members: error
# avoid_double_and_int_checks: error
# avoid_equals_and_hash_code_on_mutable_classes: error
# avoid_escaping_inner_quotes: error
# avoid_field_initializers_in_const_classes: error
# avoid_final_parameters: error
avoid_function_literals_in_foreach_calls: error
# avoid_implementing_value_types: error
avoid_init_to_null: error
# avoid_js_rounded_ints: error
# avoid_multiple_declarations_per_line: error
avoid_null_checks_in_equality_operators: error
# avoid_positional_boolean_parameters: error
# avoid_private_typedef_functions: error
# avoid_redundant_argument_values: error
avoid_renaming_method_parameters: error
avoid_return_types_on_setters: error
# avoid_returning_null: error
avoid_returning_null_for_void: error
# avoid_returning_this: error
# avoid_setters_without_getters: error
avoid_shadowing_type_parameters: error
avoid_single_cascade_in_expression_statements: error
# avoid_types_on_closure_parameters: error
# avoid_unnecessary_containers: error
# avoid_unused_constructor_parameters: error
# avoid_void_async: error
await_only_futures: error
camel_case_extensions: error
camel_case_types: error
# cascade_invocations: error
# cast_nullable_to_non_nullable: error
# combinators_ordering: error
# conditional_uri_does_not_exist: error
constant_identifier_names: error
curly_braces_in_flow_control_structures: error
# dangling_library_doc_comments: error
# deprecated_consistency: error
# directives_ordering: error
# do_not_use_environment: error
empty_catches: error
empty_constructor_bodies: error
# enable_null_safety: error
# eol_at_end_of_file: error
exhaustive_cases: error
file_names: error
# flutter_style_todos: error
implementation_imports: error
# implicit_call_tearoffs: error
# join_return_with_assignment: error
# leading_newlines_in_multiline_strings: error
# library_annotations: error
library_names: error
library_prefixes: error
library_private_types_in_public_api: error
# lines_longer_than_80_chars: error
# missing_whitespace_between_adjacent_strings: error
# no_default_cases: error
no_leading_underscores_for_library_prefixes: error
no_leading_underscores_for_local_identifiers: error
# no_runtimeType_toString: error
non_constant_identifier_names: error
# noop_primitive_operations: error
null_check_on_nullable_type_parameter: error
null_closures: error
# omit_local_variable_types: error
# one_member_abstracts: error
# only_throw_errors: error
overridden_fields: error
# package_api_docs: error
package_prefixed_library_names: error
# parameter_assignments: error
prefer_adjacent_string_concatenation: error
# prefer_asserts_in_initializer_lists: error
# prefer_asserts_with_message: error
# prefer_bool_in_asserts: error
prefer_collection_literals: error
prefer_conditional_assignment: error
# prefer_const_constructors: error
# prefer_const_constructors_in_immutables: error
# prefer_const_declarations: error
# prefer_const_literals_to_create_immutables: error
# prefer_constructors_over_static_methods: error
prefer_contains: error
# prefer_double_quotes: error
prefer_equal_for_default_values: error
# prefer_expression_function_bodies: error
prefer_final_fields: error
# prefer_final_in_for_each: error
# prefer_final_locals: error
# prefer_final_parameters: error
prefer_for_elements_to_map_fromIterable: error
# prefer_foreach: error
prefer_function_declarations_over_variables: error
prefer_generic_function_type_aliases: error
# prefer_if_elements_to_conditional_expressions: error
prefer_if_null_operators: error
prefer_initializing_formals: error
prefer_inlined_adds: error
# prefer_int_literals: error
prefer_interpolation_to_compose_strings: error
prefer_is_empty: error
prefer_is_not_empty: error
prefer_is_not_operator: error
prefer_iterable_whereType: error
# prefer_mixin: error
# prefer_null_aware_method_calls: error
prefer_null_aware_operators: error
# prefer_single_quotes: error
prefer_spread_collections: error
prefer_typing_uninitialized_variables: error
provide_deprecation_message: error
# public_member_api_docs: error
recursive_getters: error
# require_trailing_commas: error
# sized_box_for_whitespace: error
# sized_box_shrink_expand: error
slash_for_doc_comments: error
# sort_child_properties_last: error
# sort_constructors_first: error
# sort_unnamed_constructors_first: error
# super_goes_last: error
# tighten_type_of_initializing_formals: error
# type_annotate_public_apis: error
type_init_formals: error
# unawaited_futures: error
# unnecessary_await_in_return: error
unnecessary_brace_in_string_interps: error
unnecessary_const: error
unnecessary_constructor_name: error
# unnecessary_final: error
unnecessary_getters_setters: error
# unnecessary_lambdas: error
unnecessary_late: error
# unnecessary_library_directive: error
unnecessary_new: error
unnecessary_null_aware_assignments: error
# unnecessary_null_aware_operator_on_extension_on_nullable: error
# unnecessary_null_checks: error
unnecessary_null_in_if_null_operators: error
# unnecessary_nullable_for_final_variable_declarations: error
unnecessary_overrides: error
# unnecessary_parenthesis: error
# unnecessary_raw_strings: error
unnecessary_string_escapes: error
unnecessary_string_interpolations: error
unnecessary_this: error
# unnecessary_to_list_in_spreads: error
# unreachable_from_main: error
# use_colored_box: error
# use_decorated_box: error
# use_enums: error
# use_full_hex_values_for_flutter_colors: error
use_function_type_syntax_for_parameters: error
# use_if_null_to_convert_nulls_to_bools: error
# use_is_even_rather_than_modulo: error
# use_late_for_private_fields_and_variables: error
# use_named_constants: error
# use_raw_strings: error
use_rethrow_when_possible: error
# use_setters_to_change_properties: error
# use_string_buffers: error
# use_string_in_part_of_directives: error
# use_super_parameters: error
# use_test_throws_matchers: error
# use_to_and_as_if_applicable: error
void_checks: error
depend_on_referenced_packages: error
package_names: error
# secure_pubspec_urls: error
# sort_pub_dependencies: error
linter:
rules:
# Avoid relative imports for files in lib/.
# - always_use_package_imports
# Avoid method calls or property accesses on a “dynamic” target.
# - avoid_dynamic_calls
# Avoid empty else statements.
- avoid_empty_else
# Avoid print calls in production code.
# - avoid_print
# Avoid relative imports for files in lib/.
- avoid_relative_lib_imports
# Avoid returning null for Future.
# - avoid_returning_null_for_future
# Avoid slow async dart:io methods.
# - avoid_slow_async_io
# Avoid .toString() in production code since results may be minified.
# - avoid_type_to_string
# Avoid types as parameter names.
- avoid_types_as_parameter_names
# Avoid using web-only libraries outside Flutter web plugin packages.
# - avoid_web_libraries_in_flutter
# Cancel instances of dart.async.StreamSubscription.
# - cancel_subscriptions
# Close instances of dart.core.Sink.
# - close_sinks
# Invocation of various collection methods with arguments of unrelated types.
# This rule is experimental. Use at your own risk.
# - collection_methods_unrelated_type
# Only reference in scope identifiers in doc comments.
# - comment_references
# Avoid control flow in finally blocks.
- control_flow_in_finally
# DO reference all public properties in debug methods.
# - diagnostic_describe_all_properties
# Don’t invoke asynchronous functions in non-async blocks.
# - discarded_futures
# Avoid empty statements.
- empty_statements
# Always override hashCode if overriding ==.
- hash_and_equals
# Conditions should not unconditionally evaluate to true or to false.
# This rule is deprecated. Do not use it.
# - invariant_booleans
# Invocation of Iterable.contains with references of unrelated types.
- iterable_contains_unrelated_type
# Invocation of remove with references of unrelated types.
- list_remove_unrelated_type
# Boolean expression composed only with literals.
# - literal_only_boolean_expressions
# Don’t use adjacent strings in list.
# - no_adjacent_strings_in_list
# Don’t use more than one case with same value.
- no_duplicate_case_values
# Don’t put any logic in createState.
# - no_logic_in_create_state
# Prefer relative imports for files in lib/.
# - prefer_relative_imports
# Don’t use the Null type, unless you are positive that you don’t want void.
- prefer_void_to_null
# Test type arguments in operator ==(Object other).
# - test_types_in_equals
# Avoid throw in finally block.
# - throw_in_finally
# Avoid using unnecessary statements.
# - unnecessary_statements
# Equality operator == invocation with references of unrelated types.
- unrelated_type_equality_checks
# Avoid unsafe HTML APIs.
# - unsafe_html
# Do not use BuildContexts across async gaps.
# This rule is experimental. Use at your own risk.
# - use_build_context_synchronously
# Use key in widget constructors.
# - use_key_in_widget_constructors
# Use valid regular expression syntax.
- valid_regexps
# Declare method return types.
# - always_declare_return_types
# Separate the control structure expression from its statement.
# - always_put_control_body_on_new_line
# Put required named parameters first.
# - always_put_required_named_parameters_first
# Specify @required on named parameters without defaults.
- always_require_non_null_named_parameters
# Specify type annotations.
# - always_specify_types
# Annotate overridden members.
- annotate_overrides
# Avoid annotating with dynamic when not required.
# - avoid_annotating_with_dynamic
# Avoid using as.
# This rule is deprecated. Do not use it.
# - avoid_as
# Avoid bool literals in conditional expressions.
# - avoid_bool_literals_in_conditional_expressions
# Avoid catches without on clauses.
# - avoid_catches_without_on_clauses
# Don’t explicitly catch Error or types that implement it.
# - avoid_catching_errors
# Avoid defining a class that contains only static members.
# - avoid_classes_with_only_static_members
# Avoid double and int checks.
# - avoid_double_and_int_checks
# Avoid overloading operator == and hashCode on classes not marked @immutable.
# - avoid_equals_and_hash_code_on_mutable_classes
# Avoid escaping inner quotes by converting surrounding quotes.
# - avoid_escaping_inner_quotes
# Avoid field initializers in const classes.
# - avoid_field_initializers_in_const_classes
# Avoid final for parameter declarations.
# - avoid_final_parameters
# Avoid using forEach with a function literal.
- avoid_function_literals_in_foreach_calls
# Don’t implement classes that override ==.
# - avoid_implementing_value_types
# Don’t explicitly initialize variables to null.
- avoid_init_to_null
# Avoid JavaScript rounded ints.
# - avoid_js_rounded_ints
# Don’t declare multiple variables on a single line.
# - avoid_multiple_declarations_per_line
# Don’t check for null in custom == operators.
- avoid_null_checks_in_equality_operators
# Avoid positional boolean parameters.
# - avoid_positional_boolean_parameters
# Avoid private typedef functions.
# - avoid_private_typedef_functions
# Avoid redundant argument values.
# - avoid_redundant_argument_values
# Don’t rename parameters of overridden methods.
- avoid_renaming_method_parameters
# Avoid return types on setters.
- avoid_return_types_on_setters
# Avoid returning null from members whose return type is bool, double, int, or num.
# - avoid_returning_null
# Avoid returning null for void.
- avoid_returning_null_for_void
# Avoid returning this from methods just to enable a fluent interface.
# - avoid_returning_this
# Avoid setters without getters.
# - avoid_setters_without_getters
# Avoid shadowing type parameters.
- avoid_shadowing_type_parameters
# Avoid single cascade in expression statements.
- avoid_single_cascade_in_expression_statements
# Avoid annotating types for function expression parameters.
# - avoid_types_on_closure_parameters
# Avoid unnecessary containers.
# - avoid_unnecessary_containers
# Avoid defining unused parameters in constructors.
# - avoid_unused_constructor_parameters
# Avoid async functions that return void.
# - avoid_void_async
# Await only futures.
- await_only_futures
# Name extensions using UpperCamelCase.
- camel_case_extensions
# Name types using UpperCamelCase.
- camel_case_types
# Cascade consecutive method invocations on the same reference.
# - cascade_invocations
# Don’t cast a nullable value to a non nullable type.
# This rule is experimental. Use at your own risk.
# - cast_nullable_to_non_nullable
# Sort combinator names alphabetically.
# This rule is experimental. Use at your own risk.
# - combinators_ordering
# Missing conditional import.
# - conditional_uri_does_not_exist
# Prefer using lowerCamelCase for constant names.
- constant_identifier_names
# DO use curly braces for all flow control structures.
- curly_braces_in_flow_control_structures
# Attach library doc comments to library directives.
# This rule is experimental. Use at your own risk.
# - dangling_library_doc_comments
# Missing deprecated annotation.
# - deprecated_consistency
# Adhere to Effective Dart Guide directives sorting conventions.
# - directives_ordering
# Do not use environment declared variables.
# - do_not_use_environment
# Avoid empty catch blocks.
- empty_catches
# Use ; instead of {} for empty constructor bodies.
- empty_constructor_bodies
# Do use sound null safety.
# This rule is experimental. Use at your own risk.
# - enable_null_safety
# Put a single newline at end of file.
# - eol_at_end_of_file
# Define case clauses for all constants in enum-like classes.
- exhaustive_cases
# Name source files using lowercase_with_underscores.
- file_names
# Use Flutter TODO format: // TODO(username): message, https://URL-to-issue.
# - flutter_style_todos
# Don’t import implementation files from another package.
- implementation_imports
# Explicitly tear-off call methods when using an object as a Function.
# This rule is experimental. Use at your own risk.
# - implicit_call_tearoffs
# Join return statement with assignment when possible.
# - join_return_with_assignment
# Start multiline strings with a newline.
# - leading_newlines_in_multiline_strings
# Attach library annotations to library directives.
# This rule is experimental. Use at your own risk.
# - library_annotations
# Name libraries using lowercase_with_underscores.
- library_names
# Use lowercase_with_underscores when specifying a library prefix.
- library_prefixes
# Avoid using private types in public APIs.
- library_private_types_in_public_api
# Avoid lines longer than 80 characters.
# - lines_longer_than_80_chars
# Missing whitespace between adjacent strings.
# - missing_whitespace_between_adjacent_strings
# No default cases.
# This rule is experimental. Use at your own risk.
# - no_default_cases
# Avoid leading underscores for library prefixes.
- no_leading_underscores_for_library_prefixes
# Avoid leading underscores for local identifiers.
- no_leading_underscores_for_local_identifiers
# Avoid calling toString() on runtimeType.
# - no_runtimeType_toString
# Name non-constant identifiers using lowerCamelCase.
- non_constant_identifier_names
# Noop primitive operations.
# - noop_primitive_operations
# Don’t use null check on a potentially nullable type parameter.
- null_check_on_nullable_type_parameter
# Do not pass null as an argument where a closure is expected.
- null_closures
# Omit type annotations for local variables.
# - omit_local_variable_types
# Avoid defining a one-member abstract class when a simple function will do.
# - one_member_abstracts
# Only throw instances of classes extending either Exception or Error.
# - only_throw_errors
# Don’t override fields.
- overridden_fields
# Provide doc comments for all public APIs.
# - package_api_docs
# Prefix library names with the package name and a dot-separated path.
- package_prefixed_library_names
# Don’t reassign references to parameters of functions or methods.
# - parameter_assignments
# Use adjacent strings to concatenate string literals.
- prefer_adjacent_string_concatenation
# Prefer putting asserts in initializer lists.
# - prefer_asserts_in_initializer_lists
# Prefer asserts with message.
# - prefer_asserts_with_message
# Prefer using a boolean as the assert condition.
# This rule is deprecated. Do not use it.
# - prefer_bool_in_asserts
# Use collection literals when possible.
- prefer_collection_literals
# Prefer using ??= over testing for null.
- prefer_conditional_assignment
# Prefer const with constant constructors.
# - prefer_const_constructors
# Prefer declaring const constructors on @immutable classes.
# - prefer_const_constructors_in_immutables
# Prefer const over final for declarations.
# - prefer_const_declarations
# Prefer const literals as parameters of constructors on @immutable classes.
# - prefer_const_literals_to_create_immutables
# Prefer defining constructors instead of static methods to create instances.
# - prefer_constructors_over_static_methods
# Use contains for List and String instances.
- prefer_contains
# Prefer double quotes where they won’t require escape sequences.
# - prefer_double_quotes
# Use = to separate a named parameter from its default value.
- prefer_equal_for_default_values
# Use => for short members whose body is a single return statement.
# - prefer_expression_function_bodies
# Private field could be final.
- prefer_final_fields
# Prefer final in for-each loop variable if reference is not reassigned.
# - prefer_final_in_for_each
# Prefer final for variable declarations if they are not reassigned.
# - prefer_final_locals
# Prefer final for parameter declarations if they are not reassigned.
# - prefer_final_parameters
# Prefer ‘for’ elements when building maps from iterables.
- prefer_for_elements_to_map_fromIterable
# Use forEach to only apply a function to all the elements.
# - prefer_foreach
# Use a function declaration to bind a function to a name.
- prefer_function_declarations_over_variables
# Prefer generic function type aliases.
- prefer_generic_function_type_aliases
# Prefer if elements to conditional expressions where possible.
# - prefer_if_elements_to_conditional_expressions
# Prefer using if null operators.
- prefer_if_null_operators
# Use initializing formals when possible.
- prefer_initializing_formals
# Inline list item declarations where possible.
- prefer_inlined_adds
# Prefer int literals over double literals.
# - prefer_int_literals
# Use interpolation to compose strings and values.
- prefer_interpolation_to_compose_strings
# Use isEmpty for Iterables and Maps.
- prefer_is_empty
# Use isNotEmpty for Iterables and Maps.
- prefer_is_not_empty
# Prefer is! operator.
- prefer_is_not_operator
# Prefer to use whereType on iterable.
- prefer_iterable_whereType
# Prefer using mixins.
# - prefer_mixin
# Prefer null aware method calls.
# - prefer_null_aware_method_calls
# Prefer using null aware operators.
- prefer_null_aware_operators
# Only use double quotes for strings containing single quotes.
# - prefer_single_quotes
# Use spread collections when possible.
- prefer_spread_collections
# Prefer typing uninitialized variables and fields.
- prefer_typing_uninitialized_variables
# Provide a deprecation message, via @Deprecated(“message”).
- provide_deprecation_message
# Document all public members.
# - public_member_api_docs
# Property getter recursively returns itself.
- recursive_getters
# Use trailing commas for all function calls and declarations.
# This rule is experimental. Use at your own risk.
# - require_trailing_commas
# SizedBox for whitespace.
# - sized_box_for_whitespace
# Use SizedBox shrink and expand named constructors.
# - sized_box_shrink_expand
# Prefer using /// for doc comments.
- slash_for_doc_comments
# Sort child properties last in widget instance creations.
# - sort_child_properties_last
# Sort constructor declarations before other members.
# - sort_constructors_first
# Sort unnamed constructor declarations first.
# - sort_unnamed_constructors_first
# Place the super call last in a constructor initialization list.
# This rule is deprecated. Do not use it.
# - super_goes_last
# Tighten type of initializing formal.
# - tighten_type_of_initializing_formals
# Type annotate public APIs.
# - type_annotate_public_apis
# Don’t type annotate initializing formals.
- type_init_formals
# Future results in async function bodies must be awaited or marked unawaited using dart:async.
# - unawaited_futures
# Unnecessary await keyword in return.
# - unnecessary_await_in_return
# Avoid using braces in interpolation when not needed.
- unnecessary_brace_in_string_interps
# Avoid const keyword.
- unnecessary_const
# Unnecessary .new constructor name.
- unnecessary_constructor_name
# Don’t use final for local variables.
# - unnecessary_final
# Avoid wrapping fields in getters and setters just to be “safe”.
- unnecessary_getters_setters
# Don’t create a lambda when a tear-off will do.
# - unnecessary_lambdas
# Don’t specify the late modifier when it is not needed.
- unnecessary_late
# Avoid library directives unless they have documentation comments or annotations.
# This rule is experimental. Use at your own risk.
# - unnecessary_library_directive
# Unnecessary new keyword.
- unnecessary_new
# Avoid null in null-aware assignment.
- unnecessary_null_aware_assignments
# Unnecessary null aware operator on extension on a nullable type.
# - unnecessary_null_aware_operator_on_extension_on_nullable
# Unnecessary null checks.
# This rule is experimental. Use at your own risk.
# - unnecessary_null_checks
# Avoid using null in if null operators.
- unnecessary_null_in_if_null_operators
# Use a non-nullable type for a final variable initialized with a non-nullable value.
# This rule is experimental. Use at your own risk.
# - unnecessary_nullable_for_final_variable_declarations
# Don’t override a method to do a super method invocation with the same parameters.
- unnecessary_overrides
# Unnecessary parentheses can be removed.
# - unnecessary_parenthesis
# Unnecessary raw string.
# - unnecessary_raw_strings
# Remove unnecessary backslashes in strings.
- unnecessary_string_escapes
# Unnecessary string interpolation.
- unnecessary_string_interpolations
# Don’t access members with this unless avoiding shadowing.
- unnecessary_this
# Unnecessary toList() in spreads.
# - unnecessary_to_list_in_spreads
# Unreachable top-level members in executable libraries.
# This rule is experimental. Use at your own risk.
# - unreachable_from_main
# Use ColoredBox.
# - use_colored_box
# Use DecoratedBox.
# - use_decorated_box
# Use enums rather than classes that behave like enums.
# This rule is experimental. Use at your own risk.
# - use_enums
# Prefer an 8-digit hexadecimal integer(0xFFFFFFFF) to instantiate Color.
# - use_full_hex_values_for_flutter_colors
# Use generic function type syntax for parameters.
- use_function_type_syntax_for_parameters
# Use if-null operators to convert nulls to bools.
# - use_if_null_to_convert_nulls_to_bools
# Prefer intValue.isOdd/isEven instead of checking the result of % 2.
# - use_is_even_rather_than_modulo
# Use late for private members with a non-nullable type.
# This rule is experimental. Use at your own risk.
# - use_late_for_private_fields_and_variables
# Use predefined named constants.
# - use_named_constants
# Use raw string to avoid escapes.
# - use_raw_strings
# Use rethrow to rethrow a caught exception.
- use_rethrow_when_possible
# Use a setter for operations that conceptually change a property.
# - use_setters_to_change_properties
# Use string buffers to compose strings.
# - use_string_buffers
# Use string in part of directives.
# This rule is experimental. Use at your own risk.
# - use_string_in_part_of_directives
# Use super-initializer parameters where possible.
# This rule is experimental. Use at your own risk.
# - use_super_parameters
# Use throwsA matcher instead of fail().
# - use_test_throws_matchers
# Start the name of the method with to/_to or as/_as if applicable.
# - use_to_and_as_if_applicable
# Don’t assign to void.
- void_checks
# Depend on referenced packages.
- depend_on_referenced_packages
# Use lowercase_with_underscores for package names.
- package_names
# Use secure urls in pubspec.yaml.
# - secure_pubspec_urls
# Sort pub dependencies alphabetically.
# - sort_pub_dependencies