mirror of
https://github.com/dart-lang/sdk
synced 2024-10-04 16:04:53 +00:00
[analyzer] Add back removed diagnostic messages
It adds them back and specifies `removedIn: "3.2"` to prevent generation of error codes. Fixes https://github.com/dart-lang/sdk/issues/53120 Bug: https://github.com/dart-lang/sdk/issues/53120 Change-Id: Icc6e861f317b582d15d463867f08ba70ffee9f2b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/319382 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>
This commit is contained in:
Parker Lougheed
Commit Queue
parent
ffcb38d702
commit
061396f38d
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@ -24137,6 +24137,168 @@ WarningCode:
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int g() => 0;
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```
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SDK_VERSION_ASYNC_EXPORTED_FROM_CORE:
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removedIn: "3.2"
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problemMessage: "The class '{0}' wasn't exported from 'dart:core' until version 2.1, but this code is required to be able to run on earlier versions."
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correctionMessage: "Try either importing 'dart:async' or updating the SDK constraints."
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hasPublishedDocs: true
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comment: |-
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Parameters:
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0: the name of the class
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documentation: |-
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#### Description
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The analyzer produces this diagnostic when either the class `Future` or
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`Stream` is referenced in a library that doesn't import `dart:async` in
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code that has an SDK constraint whose lower bound is less than 2.1.0. In
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earlier versions, these classes weren't defined in `dart:core`, so the
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import was necessary.
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#### Example
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Here's an example of a pubspec that defines an SDK constraint with a lower
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bound of less than 2.1.0:
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```yaml
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%uri="pubspec.yaml"
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environment:
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sdk: '>=2.0.0 <2.4.0'
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```
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In the package that has that pubspec, code like the following produces this
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diagnostic:
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```dart
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void f([!Future!] f) {}
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```
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#### Common fixes
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If you don't need to support older versions of the SDK, then you can
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increase the SDK constraint to allow the classes to be referenced:
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```yaml
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environment:
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sdk: '>=2.1.0 <2.4.0'
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```
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If you need to support older versions of the SDK, then import the
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`dart:async` library.
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```dart
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import 'dart:async';
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void f(Future f) {}
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```
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SDK_VERSION_AS_EXPRESSION_IN_CONST_CONTEXT:
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removedIn: "3.2"
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problemMessage: "The use of an as expression in a constant expression wasn't supported until version 2.3.2, but this code is required to be able to run on earlier versions."
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correctionMessage: Try updating the SDK constraints.
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hasPublishedDocs: true
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comment: No parameters.
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documentation: |-
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#### Description
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The analyzer produces this diagnostic when an `as` expression inside a
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[constant context][] is found in code that has an SDK constraint whose
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lower bound is less than 2.3.2. Using an `as` expression in a
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[constant context][] wasn't supported in earlier versions, so this code
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won't be able to run against earlier versions of the SDK.
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#### Example
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Here's an example of a pubspec that defines an SDK constraint with a lower
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bound of less than 2.3.2:
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```yaml
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%uri="pubspec.yaml"
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environment:
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sdk: '>=2.1.0 <2.4.0'
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```
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In the package that has that pubspec, code like the following produces
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this diagnostic:
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```dart
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const num n = 3;
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const int i = [!n as int!];
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```
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#### Common fixes
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If you don't need to support older versions of the SDK, then you can
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increase the SDK constraint to allow the expression to be used:
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```yaml
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environment:
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sdk: '>=2.3.2 <2.4.0'
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```
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If you need to support older versions of the SDK, then either rewrite the
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code to not use an `as` expression, or change the code so that the `as`
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expression isn't in a [constant context][]:
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```dart
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num x = 3;
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int y = x as int;
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```
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SDK_VERSION_BOOL_OPERATOR_IN_CONST_CONTEXT:
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removedIn: "3.2"
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problemMessage: "The use of the operator '{0}' for 'bool' operands in a constant context wasn't supported until version 2.3.2, but this code is required to be able to run on earlier versions."
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correctionMessage: Try updating the SDK constraints.
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hasPublishedDocs: true
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comment: |-
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Parameters:
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0: the name of the operator
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documentation: |-
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#### Description
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The analyzer produces this diagnostic when any use of the `&`, `|`, or `^`
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operators on the class `bool` inside a [constant context][] is found in
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code that has an SDK constraint whose lower bound is less than 2.3.2. Using
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these operators in a [constant context][] wasn't supported in earlier
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versions, so this code won't be able to run against earlier versions of the
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SDK.
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#### Example
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Here's an example of a pubspec that defines an SDK constraint with a lower
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bound of less than 2.3.2:
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```yaml
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%uri="pubspec.yaml"
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environment:
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sdk: '>=2.1.0 <2.4.0'
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```
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In the package that has that pubspec, code like the following produces this
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diagnostic:
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```dart
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const bool a = true;
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const bool b = false;
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const bool c = a [!&!] b;
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```
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#### Common fixes
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If you don't need to support older versions of the SDK, then you can
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increase the SDK constraint to allow the operators to be used:
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```yaml
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environment:
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sdk: '>=2.3.2 <2.4.0'
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```
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If you need to support older versions of the SDK, then either rewrite the
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code to not use these operators, or change the code so that the expression
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isn't in a [constant context][]:
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```dart
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const bool a = true;
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const bool b = false;
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bool c = a & b;
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```
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SDK_VERSION_CONSTRUCTOR_TEAROFFS:
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problemMessage: "Tearing off a constructor requires the 'constructor-tearoffs' language feature."
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correctionMessage: "Try updating your pubspec.yaml to set the minimum SDK constraint to 2.15 or higher, and running 'pub get'."
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@ -24192,6 +24354,121 @@ WarningCode:
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%language=2.14
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var setConstructor = () => Set.identity();
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```
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SDK_VERSION_EQ_EQ_OPERATOR_IN_CONST_CONTEXT:
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removedIn: "3.2"
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problemMessage: "Using the operator '==' for non-primitive types wasn't supported until version 2.3.2, but this code is required to be able to run on earlier versions."
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correctionMessage: Try updating the SDK constraints.
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hasPublishedDocs: true
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comment: No parameters.
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documentation: |-
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#### Description
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The analyzer produces this diagnostic when the operator `==` is used on a
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non-primitive type inside a [constant context][] is found in code that has
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an SDK constraint whose lower bound is less than 2.3.2. Using this operator
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in a [constant context][] wasn't supported in earlier versions, so this
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code won't be able to run against earlier versions of the SDK.
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#### Example
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Here's an example of a pubspec that defines an SDK constraint with a lower
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bound of less than 2.3.2:
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```yaml
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%uri="pubspec.yaml"
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environment:
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sdk: '>=2.1.0 <2.4.0'
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```
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In the package that has that pubspec, code like the following produces this
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diagnostic:
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```dart
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%language=2.9
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class C {}
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const C a = null;
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const C b = null;
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const bool same = a [!==!] b;
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```
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#### Common fixes
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If you don't need to support older versions of the SDK, then you can
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increase the SDK constraint to allow the operator to be used:
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```yaml
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environment:
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sdk: '>=2.3.2 <2.4.0'
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```
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If you need to support older versions of the SDK, then either rewrite the
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code to not use the `==` operator, or change the code so that the
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expression isn't in a [constant context][]:
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```dart
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%language=2.9
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class C {}
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const C a = null;
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const C b = null;
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bool same = a == b;
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```
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SDK_VERSION_EXTENSION_METHODS:
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removedIn: "3.2"
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problemMessage: "Extension methods weren't supported until version 2.6.0, but this code is required to be able to run on earlier versions."
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correctionMessage: Try updating the SDK constraints.
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hasPublishedDocs: true
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comment: No parameters.
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documentation: |-
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#### Description
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The analyzer produces this diagnostic when an extension declaration or an
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extension override is found in code that has an SDK constraint whose lower
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bound is less than 2.6.0. Using extensions wasn't supported in earlier
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versions, so this code won't be able to run against earlier versions of the
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SDK.
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#### Example
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Here's an example of a pubspec that defines an SDK constraint with a lower
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bound of less than 2.6.0:
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```yaml
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%uri="pubspec.yaml"
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environment:
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sdk: '>=2.4.0 <2.7.0'
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```
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In the package that has that pubspec, code like the following produces
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this diagnostic:
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```dart
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[!extension!] E on String {
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void sayHello() {
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print('Hello $this');
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}
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}
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```
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#### Common fixes
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If you don't need to support older versions of the SDK, then you can
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increase the SDK constraint to allow the syntax to be used:
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```yaml
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environment:
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sdk: '>=2.6.0 <2.7.0'
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```
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If you need to support older versions of the SDK, then rewrite the code to
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not make use of extensions. The most common way to do this is to rewrite
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the members of the extension as top-level functions (or methods) that take
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the value that would have been bound to `this` as a parameter:
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```dart
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void sayHello(String s) {
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print('Hello $s');
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}
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```
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SDK_VERSION_GT_GT_GT_OPERATOR:
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problemMessage: "The operator '>>>' wasn't supported until version 2.14.0, but this code is required to be able to run on earlier versions."
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correctionMessage: Try updating the SDK constraints.
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@ -24247,6 +24524,59 @@ WarningCode:
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return leftOperand ~/ divisor;
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}
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```
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SDK_VERSION_IS_EXPRESSION_IN_CONST_CONTEXT:
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removedIn: "3.2"
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problemMessage: "The use of an is expression in a constant context wasn't supported until version 2.3.2, but this code is required to be able to run on earlier versions."
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correctionMessage: Try updating the SDK constraints.
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hasPublishedDocs: true
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comment: No parameters.
|
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documentation: |-
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#### Description
|
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|
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The analyzer produces this diagnostic when an `is` expression inside a
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[constant context][] is found in code that has an SDK constraint whose
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lower bound is less than 2.3.2. Using an `is` expression in a
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[constant context][] wasn't supported in earlier versions, so this code
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won't be able to run against earlier versions of the SDK.
|
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|
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#### Example
|
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|
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Here's an example of a pubspec that defines an SDK constraint with a lower
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bound of less than 2.3.2:
|
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|
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```yaml
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%uri="pubspec.yaml"
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environment:
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sdk: '>=2.1.0 <2.4.0'
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```
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In the package that has that pubspec, code like the following produces
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this diagnostic:
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```dart
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const Object x = 4;
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const y = [!x is int!] ? 0 : 1;
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```
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#### Common fixes
|
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|
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If you don't need to support older versions of the SDK, then you can
|
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increase the SDK constraint to allow the expression to be used:
|
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|
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```yaml
|
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environment:
|
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sdk: '>=2.3.2 <2.4.0'
|
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```
|
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|
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If you need to support older versions of the SDK, then either rewrite the
|
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code to not use the `is` operator, or, if that isn't possible, change the
|
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code so that the `is` expression isn't in a
|
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[constant context][]:
|
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|
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```dart
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const Object x = 4;
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var y = x is int ? 0 : 1;
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```
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SDK_VERSION_NEVER:
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problemMessage: "The type 'Never' wasn't supported until version 2.12.0, but this code is required to be able to run on earlier versions."
|
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correctionMessage: Try updating the SDK constraints.
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@ -24295,6 +24625,54 @@ WarningCode:
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```dart
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dynamic x;
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```
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SDK_VERSION_SET_LITERAL:
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removedIn: "3.2"
|
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problemMessage: "Set literals weren't supported until version 2.2, but this code is required to be able to run on earlier versions."
|
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correctionMessage: Try updating the SDK constraints.
|
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hasPublishedDocs: true
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comment: No parameters.
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documentation: |-
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#### Description
|
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|
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The analyzer produces this diagnostic when a set literal is found in code
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that has an SDK constraint whose lower bound is less than 2.2.0. Set
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literals weren't supported in earlier versions, so this code won't be able
|
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to run against earlier versions of the SDK.
|
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|
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#### Example
|
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|
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Here's an example of a pubspec that defines an SDK constraint with a lower
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bound of less than 2.2.0:
|
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|
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```yaml
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%uri="pubspec.yaml"
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environment:
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sdk: '>=2.1.0 <2.4.0'
|
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```
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|
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In the package that has that pubspec, code like the following produces this
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diagnostic:
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|
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```dart
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var s = [!<int>{}!];
|
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```
|
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|
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#### Common fixes
|
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|
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If you don't need to support older versions of the SDK, then you can
|
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increase the SDK constraint to allow the syntax to be used:
|
||||
|
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```yaml
|
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environment:
|
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sdk: '>=2.2.0 <2.4.0'
|
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```
|
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|
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If you do need to support older versions of the SDK, then replace the set
|
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literal with code that creates the set without the use of a literal:
|
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|
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```dart
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var s = new Set<int>();
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```
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SDK_VERSION_SINCE:
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problemMessage: "This API is available since SDK {0}, but constraints '{1}' don't guarantee it."
|
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correctionMessage: Try updating the SDK constraints.
|
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|
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@ -24302,6 +24680,122 @@ WarningCode:
|
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Parameters:
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0: the version specified in the `@Since()` annotation
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1: the SDK version constraints
|
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SDK_VERSION_UI_AS_CODE:
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removedIn: "3.2"
|
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problemMessage: "The for, if, and spread elements weren't supported until version 2.3.0, but this code is required to be able to run on earlier versions."
|
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correctionMessage: Try updating the SDK constraints.
|
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hasPublishedDocs: true
|
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comment: No parameters.
|
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documentation: |-
|
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#### Description
|
||||
|
||||
The analyzer produces this diagnostic when a for, if, or spread element is
|
||||
found in code that has an SDK constraint whose lower bound is less than
|
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2.3.0. Using a for, if, or spread element wasn't supported in earlier
|
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versions, so this code won't be able to run against earlier versions of the
|
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SDK.
|
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|
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#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.3.0:
|
||||
|
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```yaml
|
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%uri="pubspec.yaml"
|
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environment:
|
||||
sdk: '>=2.2.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces
|
||||
this diagnostic:
|
||||
|
||||
```dart
|
||||
var digits = [[!for (int i = 0; i < 10; i++) i!]];
|
||||
```
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the syntax to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.3.0 <2.4.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then rewrite the code to
|
||||
not make use of those elements:
|
||||
|
||||
```dart
|
||||
var digits = _initializeDigits();
|
||||
|
||||
List<int> _initializeDigits() {
|
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var digits = <int>[];
|
||||
for (int i = 0; i < 10; i++) {
|
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digits.add(i);
|
||||
}
|
||||
return digits;
|
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}
|
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```
|
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SDK_VERSION_UI_AS_CODE_IN_CONST_CONTEXT:
|
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removedIn: "3.2"
|
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problemMessage: "The if and spread elements weren't supported in constant expressions until version 2.5.0, but this code is required to be able to run on earlier versions."
|
||||
correctionMessage: Try updating the SDK constraints.
|
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hasPublishedDocs: true
|
||||
comment: No parameters.
|
||||
documentation: |-
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when an if or spread element inside
|
||||
a [constant context][] is found in code that has an SDK constraint whose
|
||||
lower bound is less than 2.5.0. Using an if or spread element inside a
|
||||
[constant context][] wasn't supported in earlier versions, so this code
|
||||
won't be able to run against earlier versions of the SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.5.0:
|
||||
|
||||
```yaml
|
||||
%uri="pubspec.yaml"
|
||||
environment:
|
||||
sdk: '>=2.4.0 <2.6.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces
|
||||
this diagnostic:
|
||||
|
||||
```dart
|
||||
const a = [1, 2];
|
||||
const b = [[!...a!]];
|
||||
```
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the syntax to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.5.0 <2.6.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then rewrite the code to
|
||||
not make use of those elements:
|
||||
|
||||
```dart
|
||||
const a = [1, 2];
|
||||
const b = [1, 2];
|
||||
```
|
||||
|
||||
If that isn't possible, change the code so that the element isn't in a
|
||||
[constant context][]:
|
||||
|
||||
```dart
|
||||
const a = [1, 2];
|
||||
var b = [...a];
|
||||
```
|
||||
STRICT_RAW_TYPE:
|
||||
problemMessage: "The generic type '{0}' should have explicit type arguments but doesn't."
|
||||
correctionMessage: "Use explicit type arguments for '{0}'."
|
||||
|
|
|
|||
|
|
@ -17852,6 +17852,158 @@ int f() {
|
|||
}
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_async_exported_from_core
|
||||
|
||||
_The class '{0}' wasn't exported from 'dart:core' until version 2.1, but this
|
||||
code is required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when either the class `Future` or
|
||||
`Stream` is referenced in a library that doesn't import `dart:async` in
|
||||
code that has an SDK constraint whose lower bound is less than 2.1.0. In
|
||||
earlier versions, these classes weren't defined in `dart:core`, so the
|
||||
import was necessary.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.1.0:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.0.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces this
|
||||
diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
void f([!Future!] f) {}
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the classes to be referenced:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.1.0 <2.4.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then import the
|
||||
`dart:async` library.
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
import 'dart:async';
|
||||
|
||||
void f(Future f) {}
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_as_expression_in_const_context
|
||||
|
||||
_The use of an as expression in a constant expression wasn't supported until
|
||||
version 2.3.2, but this code is required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when an `as` expression inside a
|
||||
[constant context][] is found in code that has an SDK constraint whose
|
||||
lower bound is less than 2.3.2. Using an `as` expression in a
|
||||
[constant context][] wasn't supported in earlier versions, so this code
|
||||
won't be able to run against earlier versions of the SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.3.2:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.1.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces
|
||||
this diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const num n = 3;
|
||||
const int i = [!n as int!];
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the expression to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.3.2 <2.4.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then either rewrite the
|
||||
code to not use an `as` expression, or change the code so that the `as`
|
||||
expression isn't in a [constant context][]:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
num x = 3;
|
||||
int y = x as int;
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_bool_operator_in_const_context
|
||||
|
||||
_The use of the operator '{0}' for 'bool' operands in a constant context wasn't
|
||||
supported until version 2.3.2, but this code is required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when any use of the `&`, `|`, or `^`
|
||||
operators on the class `bool` inside a [constant context][] is found in
|
||||
code that has an SDK constraint whose lower bound is less than 2.3.2. Using
|
||||
these operators in a [constant context][] wasn't supported in earlier
|
||||
versions, so this code won't be able to run against earlier versions of the
|
||||
SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.3.2:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.1.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces this
|
||||
diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const bool a = true;
|
||||
const bool b = false;
|
||||
const bool c = a [!&!] b;
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the operators to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.3.2 <2.4.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then either rewrite the
|
||||
code to not use these operators, or change the code so that the expression
|
||||
isn't in a [constant context][]:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const bool a = true;
|
||||
const bool b = false;
|
||||
bool c = a & b;
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_constructor_tearoffs
|
||||
|
||||
_Tearing off a constructor requires the 'constructor-tearoffs' language
|
||||
|
|
@ -17898,6 +18050,115 @@ not use constructor tear-offs:
|
|||
var setConstructor = () => Set.identity();
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_eq_eq_operator_in_const_context
|
||||
|
||||
_Using the operator '==' for non-primitive types wasn't supported until version
|
||||
2.3.2, but this code is required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when the operator `==` is used on a
|
||||
non-primitive type inside a [constant context][] is found in code that has
|
||||
an SDK constraint whose lower bound is less than 2.3.2. Using this operator
|
||||
in a [constant context][] wasn't supported in earlier versions, so this
|
||||
code won't be able to run against earlier versions of the SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.3.2:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.1.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces this
|
||||
diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
class C {}
|
||||
const C a = null;
|
||||
const C b = null;
|
||||
const bool same = a [!==!] b;
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the operator to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.3.2 <2.4.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then either rewrite the
|
||||
code to not use the `==` operator, or change the code so that the
|
||||
expression isn't in a [constant context][]:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
class C {}
|
||||
const C a = null;
|
||||
const C b = null;
|
||||
bool same = a == b;
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_extension_methods
|
||||
|
||||
_Extension methods weren't supported until version 2.6.0, but this code is
|
||||
required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when an extension declaration or an
|
||||
extension override is found in code that has an SDK constraint whose lower
|
||||
bound is less than 2.6.0. Using extensions wasn't supported in earlier
|
||||
versions, so this code won't be able to run against earlier versions of the
|
||||
SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.6.0:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.4.0 <2.7.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces
|
||||
this diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
[!extension!] E on String {
|
||||
void sayHello() {
|
||||
print('Hello $this');
|
||||
}
|
||||
}
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the syntax to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.6.0 <2.7.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then rewrite the code to
|
||||
not make use of extensions. The most common way to do this is to rewrite
|
||||
the members of the extension as top-level functions (or methods) that take
|
||||
the value that would have been bound to `this` as a parameter:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
void sayHello(String s) {
|
||||
print('Hello $s');
|
||||
}
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_gt_gt_gt_operator
|
||||
|
||||
_The operator '>>>' wasn't supported until version 2.14.0, but this code is
|
||||
|
|
@ -17952,6 +18213,57 @@ int logicalShiftRight(int leftOperand, int rightOperand) {
|
|||
}
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_is_expression_in_const_context
|
||||
|
||||
_The use of an is expression in a constant context wasn't supported until
|
||||
version 2.3.2, but this code is required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when an `is` expression inside a
|
||||
[constant context][] is found in code that has an SDK constraint whose
|
||||
lower bound is less than 2.3.2. Using an `is` expression in a
|
||||
[constant context][] wasn't supported in earlier versions, so this code
|
||||
won't be able to run against earlier versions of the SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.3.2:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.1.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces
|
||||
this diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const Object x = 4;
|
||||
const y = [!x is int!] ? 0 : 1;
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the expression to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.3.2 <2.4.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then either rewrite the
|
||||
code to not use the `is` operator, or, if that isn't possible, change the
|
||||
code so that the `is` expression isn't in a
|
||||
[constant context][]:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const Object x = 4;
|
||||
var y = x is int ? 0 : 1;
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_never
|
||||
|
||||
_The type 'Never' wasn't supported until version 2.12.0, but this code is
|
||||
|
|
@ -17998,6 +18310,164 @@ not reference this class:
|
|||
dynamic x;
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_set_literal
|
||||
|
||||
_Set literals weren't supported until version 2.2, but this code is required to
|
||||
be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when a set literal is found in code
|
||||
that has an SDK constraint whose lower bound is less than 2.2.0. Set
|
||||
literals weren't supported in earlier versions, so this code won't be able
|
||||
to run against earlier versions of the SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.2.0:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.1.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces this
|
||||
diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
var s = [!<int>{}!];
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the syntax to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.2.0 <2.4.0'
|
||||
```
|
||||
|
||||
If you do need to support older versions of the SDK, then replace the set
|
||||
literal with code that creates the set without the use of a literal:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
var s = new Set<int>();
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_ui_as_code
|
||||
|
||||
_The for, if, and spread elements weren't supported until version 2.3.0, but
|
||||
this code is required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when a for, if, or spread element is
|
||||
found in code that has an SDK constraint whose lower bound is less than
|
||||
2.3.0. Using a for, if, or spread element wasn't supported in earlier
|
||||
versions, so this code won't be able to run against earlier versions of the
|
||||
SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.3.0:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.2.0 <2.4.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces
|
||||
this diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
var digits = [[!for (int i = 0; i < 10; i++) i!]];
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the syntax to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.3.0 <2.4.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then rewrite the code to
|
||||
not make use of those elements:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
var digits = _initializeDigits();
|
||||
|
||||
List<int> _initializeDigits() {
|
||||
var digits = <int>[];
|
||||
for (int i = 0; i < 10; i++) {
|
||||
digits.add(i);
|
||||
}
|
||||
return digits;
|
||||
}
|
||||
{% endprettify %}
|
||||
|
||||
### sdk_version_ui_as_code_in_const_context
|
||||
|
||||
_The if and spread elements weren't supported in constant expressions until
|
||||
version 2.5.0, but this code is required to be able to run on earlier versions._
|
||||
|
||||
#### Description
|
||||
|
||||
The analyzer produces this diagnostic when an if or spread element inside
|
||||
a [constant context][] is found in code that has an SDK constraint whose
|
||||
lower bound is less than 2.5.0. Using an if or spread element inside a
|
||||
[constant context][] wasn't supported in earlier versions, so this code
|
||||
won't be able to run against earlier versions of the SDK.
|
||||
|
||||
#### Example
|
||||
|
||||
Here's an example of a pubspec that defines an SDK constraint with a lower
|
||||
bound of less than 2.5.0:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.4.0 <2.6.0'
|
||||
```
|
||||
|
||||
In the package that has that pubspec, code like the following produces
|
||||
this diagnostic:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const a = [1, 2];
|
||||
const b = [[!...a!]];
|
||||
{% endprettify %}
|
||||
|
||||
#### Common fixes
|
||||
|
||||
If you don't need to support older versions of the SDK, then you can
|
||||
increase the SDK constraint to allow the syntax to be used:
|
||||
|
||||
```yaml
|
||||
environment:
|
||||
sdk: '>=2.5.0 <2.6.0'
|
||||
```
|
||||
|
||||
If you need to support older versions of the SDK, then rewrite the code to
|
||||
not make use of those elements:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const a = [1, 2];
|
||||
const b = [1, 2];
|
||||
{% endprettify %}
|
||||
|
||||
If that isn't possible, change the code so that the element isn't in a
|
||||
[constant context][]:
|
||||
|
||||
{% prettify dart tag=pre+code %}
|
||||
const a = [1, 2];
|
||||
var b = [...a];
|
||||
{% endprettify %}
|
||||
|
||||
### set_element_type_not_assignable
|
||||
|
||||
_The element type '{0}' can't be assigned to the set type '{1}'._
|
||||
|
|
|
|||
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Reference in a new issue