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Overview |
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Rules are grouped by a category to help you understand their purpose.
Rules configuration is described here.
-
avoid-collection-methods-with-unrelated-types
Avoid using collection methods with unrelated types, such as accessing a map of integers using a string key.
-
Warns when
dynamic
type is used as variable type in declaration, return type of a function, etc. -
Warns about usage mutable global variables.
-
Warns when a return value of a method or function invocation or a class instance property access is not used.
-
Warns when a field or variable is declared with a
late
keyword. -
avoid-missing-enum-constant-in-map
Warns when a enum constant is missing in a map declaration.
-
avoid-nested-conditional-expressions
Warns about nested conditional expressions.
-
Warns when a string literal contains non ascii characters.
-
Warns when non null assertion operator (or “bang” operator) is used for a property access or method invocation. The operator check works at runtime and it may fail and throw a runtime exception.
-
Warns when call
throw
in a catch block. -
avoid-unnecessary-type-assertions
Warns about unnecessary usage of 'is' and 'whereType' operators.
-
Warns about unnecessary usage of 'as' operators.
-
avoid-unrelated-type-assertions
Warns about unrelated usages of 'is' operators.
-
Checks for unused parameters inside a function or method body.
-
Configure some names that you want to ban.
-
binary-expression-operand-order
Warns when a literal value is on the left hand side in a binary expressions.
-
Checks that double literals should begin with
0.
instead of just.
, and should not end with a trailing0
. -
Prefer format comments like sentences.
-
Enforces ordering for a class members.
-
Enforces ordering for a class members.
-
Enforces blank line between statements and return in a block.
-
Warns on comparison to a boolean literal, as in x == true.
-
Disallows empty blocks except catch clause block.
-
Warns when equal arguments passed to a function or method invocation.
-
Warns when if statement has equal then and else statements or conditional expression has equal then and else expressions.
-
Warns against using number literals outside of named constants or variables.
-
Warns when a class member is declared with Object type.
-
Recommends to use async/await syntax to handle Futures result instead of
.then()
invocation. -
prefer-commenting-analyzer-ignores
Warns when
// ignore:
comments are left without any additional description why this ignore is applied. -
prefer-conditional-expressions
Recommends to use a conditional expression instead of assigning to the same thing or return statement in each branch of an if statement.
-
prefer-correct-identifier-length
Warns when identifier name length very short or long.
-
Type name should only contain alphanumeric characters, start with an uppercase character and span between min-length and max-length characters in length.
-
Use
first
to gets the first element. -
Warns when a method or a function returns a variable declared right before the return statement.
-
Use
last
to gets the last element. -
Warns when file name does not match class name.
-
Check for trailing comma for arguments, parameters, enum values and collections.
-
Warns when tag name does not match class name.
-
Warns when an event listener is added but never removed.
-
Avoid using Border.all constructor.
-
Warns when a method or function returns a Widget or subclass of a Widget.
-
Warns when
setState
is called insideinitState
,didUpdateWidget
orbuild
methods and when it is called from async
method that is called inside those methods. -
Warns when a widget is wrapped in a Padding widget but has a padding settings by itself.
-
Warns when used non const border radius.
-
Warns about inline callbacks in a widget tree and suggest to extract them to a widget method.
-
Warns when a file contains more than a single widget.
-
Recommends to use ClassName_ClassMemberName pattern for Intl methods name argument.
-
Warns when the Intl.message() invocation has incorrect args.
-
avoid-preserve-whitespace-false
Warns when a
@Component
annotation has explicit false value for preserveWhitespace. -
component-annotation-arguments-ordering
Enforces Angular
@Component
annotation arguments ordering. -
Prefer setting changeDetection: ChangeDetectionStrategy.OnPush in Angular
@Component
annotations.