Comply with analyzer 6.9.0 APIs (#3874)

.github/workflows/test.yaml

@@ -22,7 +22,9 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        sdk: [dev, stable]
+        # TODO(srawlins): Re-enable stable when stable works with analyzer 6.9.0
+        # (Dart 3.6.0).
+        sdk: [dev]
         job: [main, flutter, packages, sdk-docs]
         include:
           - os: macos-latest

lib/src/model/accessor.dart

@@ -115,13 +115,11 @@ class Accessor extends ModelElement {
   }
 
   @override
-  ModelElement get enclosingElement {
-    if (element.enclosingElement is CompilationUnitElement) {
-      return getModelForElement(element.enclosingElement.enclosingElement!);
-    }
-
-    return getModelFor(element.enclosingElement, library);
-  }
+  ModelElement get enclosingElement => switch (element.enclosingElement3) {
+        CompilationUnitElement enclosingCompilationUnit =>
+          getModelForElement(enclosingCompilationUnit.library),
+        _ => getModelFor(element.enclosingElement3, library)
+      };
 
   @override
   String get filePath => enclosingCombo.filePath;
@@ -207,7 +205,7 @@ class ContainerAccessor extends Accessor with ContainerMember, Inheritable {
   @override
   ContainerAccessor? get overriddenElement {
     assert(packageGraph.allLibrariesAdded);
-    final parent = element.enclosingElement;
+    final parent = element.enclosingElement3;
     if (parent is! InterfaceElement) {
       return null;
     }

lib/src/model/constructor.dart

@@ -30,7 +30,7 @@ class Constructor extends ModelElement with ContainerMember, TypeParameters {
   bool get isPublic {
     if (!super.isPublic) return false;
     if (element.hasPrivateName) return false;
-    var class_ = element.enclosingElement;
+    var class_ = element.enclosingElement3;
     // Enums cannot be explicitly constructed or extended.
     if (class_ is EnumElement) return false;
     if (class_ is ClassElement) {
@@ -53,7 +53,7 @@ class Constructor extends ModelElement with ContainerMember, TypeParameters {
 
   @override
   Container get enclosingElement =>
-      getModelFor(element.enclosingElement, library) as Container;
+      getModelFor(element.enclosingElement3, library) as Container;
 
   @override
   String get aboveSidebarPath => enclosingElement.sidebarPath;
@@ -108,7 +108,7 @@ class Constructor extends ModelElement with ContainerMember, TypeParameters {
 
   String? get shortName {
     if (name.contains('.')) {
-      return name.substring(element.enclosingElement.name.length + 1);
+      return name.substring(element.enclosingElement3.name.length + 1);
     } else {
       return name;
     }

lib/src/model/container_member.dart

@@ -29,7 +29,7 @@ mixin ContainerMember on ModelElement {
   @protected
   @visibleForTesting
   late final Container definingEnclosingContainer =
-      getModelForElement(element.enclosingElement!) as Container;
+      getModelForElement(element.enclosingElement3!) as Container;
 
   @override
   Set<Attribute> get attributes => {

lib/src/model/enum.dart

@@ -85,7 +85,7 @@ class EnumField extends Field {
 
   @override
   bool get hasConstantValueForDisplay {
-    final enum_ = element.enclosingElement as EnumElement;
+    final enum_ = element.enclosingElement3 as EnumElement;
     final enumHasDefaultConstructor =
         enum_.constructors.any((c) => c.isDefaultConstructor);
     // If this enum does not have any explicit constructors (and so only has a

lib/src/model/extension.dart

@@ -116,7 +116,7 @@ class Extension extends Container {
   late final List<TypeParameter> typeParameters = element.typeParameters
       .map((typeParameter) => getModelFor(
           typeParameter,
-          getModelForElement(typeParameter.enclosingElement!.library!)
+          getModelForElement(typeParameter.enclosingElement3!.library!)
               as Library) as TypeParameter)
       .toList(growable: false);
 

lib/src/model/field.dart

@@ -33,7 +33,7 @@ class Field extends ModelElement
     this.setter,
   )   : isInherited = false,
         enclosingElement =
-            ModelElement.for_(element.enclosingElement, library, packageGraph)
+            ModelElement.for_(element.enclosingElement3, library, packageGraph)
                 as Container,
         assert(getter != null || setter != null) {
     getter?.enclosingCombo = this;
@@ -126,7 +126,7 @@ class Field extends ModelElement
       element.isAbstract ? 'abstract $kind' : kind.toString();
 
   bool get isProvidedByExtension =>
-      element.enclosingElement is ExtensionElement;
+      element.enclosingElement3 is ExtensionElement;
 
   /// The [enclosingElement], which is expected to be an [Extension].
   Extension get enclosingExtension => enclosingElement as Extension;

lib/src/model/inheriting_container.dart

@@ -173,7 +173,7 @@ abstract class InheritingContainer extends Container {
       // Elements in the inheritance chain starting from `this.element` up to,
       // but not including, `Object`.
       var enclosingElement =
-          inheritedElement.enclosingElement as InterfaceElement;
+          inheritedElement.enclosingElement3 as InterfaceElement;
       assert(inheritanceChainElements.contains(enclosingElement) ||
           enclosingElement.isDartCoreObject);
 
@@ -183,7 +183,7 @@ abstract class InheritingContainer extends Container {
       // accounts for intermediate abstract classes that have method/field
       // implementations.
       var enclosingElementFromCombined =
-          combinedMapElement.enclosingElement as InterfaceElement;
+          combinedMapElement.enclosingElement3 as InterfaceElement;
       if (inheritanceChainElements.indexOf(enclosingElementFromCombined) <
           inheritanceChainElements.indexOf(enclosingElement)) {
         combinedMap[name.name] = inheritedElement;
@@ -257,7 +257,7 @@ abstract class InheritingContainer extends Container {
   late final List<TypeParameter> typeParameters = element.typeParameters
       .map((typeParameter) => getModelFor(
           typeParameter,
-          getModelForElement(typeParameter.enclosingElement!.library!)
+          getModelForElement(typeParameter.enclosingElement3!.library!)
               as Library) as TypeParameter)
       .toList(growable: false);
 

lib/src/model/method.dart

@@ -66,7 +66,7 @@ class Method extends ModelElement
 
   @override
   Container get enclosingElement => _enclosingContainer ??=
-      getModelFor(element.enclosingElement, library) as Container;
+      getModelFor(element.enclosingElement3, library) as Container;
 
   @override
   String get aboveSidebarPath => enclosingElement.sidebarPath;
@@ -94,7 +94,7 @@ class Method extends ModelElement
   bool get isOperator => false;
 
   bool get isProvidedByExtension =>
-      element.enclosingElement is ExtensionElement;
+      element.enclosingElement3 is ExtensionElement;
 
   /// The [enclosingElement], which is expected to be an [Extension].
   Extension get enclosingExtension => enclosingElement as Extension;
@@ -120,17 +120,17 @@ class Method extends ModelElement
   @override
   Method? get overriddenElement {
     if (_enclosingContainer is Extension ||
-        element.enclosingElement is ExtensionElement) {
+        element.enclosingElement3 is ExtensionElement) {
       return null;
     }
-    var parent = element.enclosingElement as InterfaceElement;
+    var parent = element.enclosingElement3 as InterfaceElement;
     for (var t in parent.augmented.declaration.allSupertypes) {
       Element? e = t.getMethod(element.name);
       if (e != null) {
         assert(
-          e.enclosingElement is InterfaceElement,
-          'Expected "${e.enclosingElement?.name}" to be a InterfaceElement, '
-          'but was ${e.enclosingElement.runtimeType}',
+          e.enclosingElement3 is InterfaceElement,
+          'Expected "${e.enclosingElement3?.name}" to be a InterfaceElement, '
+          'but was ${e.enclosingElement3.runtimeType}',
         );
         return getModelForElement(e) as Method?;
       }

lib/src/model/model_element.dart

@@ -159,7 +159,7 @@ abstract class ModelElement
           var index = constantIndex.toIntValue()!;
           newModelElement =
               EnumField.forConstant(index, e, library, packageGraph, getter);
-        } else if (e.enclosingElement is ExtensionElement) {
+        } else if (e.enclosingElement3 is ExtensionElement) {
           newModelElement = Field(e, library, packageGraph,
               getter as ContainerAccessor?, setter as ContainerAccessor?);
         } else {
@@ -169,7 +169,7 @@ abstract class ModelElement
       } else {
         // Enum fields and extension getters can't be inherited, so this case is
         // simpler.
-        if (e.enclosingElement is ExtensionElement) {
+        if (e.enclosingElement3 is ExtensionElement) {
           newModelElement = Field.providedByExtension(
             e,
             enclosingContainer,
@@ -310,7 +310,7 @@ abstract class ModelElement
       MethodElement(isOperator: true) when enclosingContainer == null =>
         Operator(e, library, packageGraph),
       MethodElement(isOperator: true)
-          when e.enclosingElement is ExtensionElement =>
+          when e.enclosingElement3 is ExtensionElement =>
         Operator.providedByExtension(
             e, enclosingContainer, library, packageGraph),
       MethodElement(isOperator: true) => Operator.inherited(
@@ -319,7 +319,7 @@ abstract class ModelElement
       MethodElement(isOperator: false) when enclosingContainer == null =>
         Method(e, library, packageGraph),
       MethodElement(isOperator: false)
-          when e.enclosingElement is ExtensionElement =>
+          when e.enclosingElement3 is ExtensionElement =>
         Method.providedByExtension(
             e, enclosingContainer, library, packageGraph),
       MethodElement(isOperator: false) => Method.inherited(
@@ -348,8 +348,8 @@ abstract class ModelElement
     required Member? originalMember,
   }) {
     // Accessors can be part of a [Container], or a part of a [Library].
-    if (e.enclosingElement is ExtensionElement ||
-        e.enclosingElement is InterfaceElement ||
+    if (e.enclosingElement3 is ExtensionElement ||
+        e.enclosingElement3 is InterfaceElement ||
         e is MultiplyInheritedExecutableElement) {
       if (enclosingContainer == null || enclosingContainer is Extension) {
         return ContainerAccessor(e, library, packageGraph, enclosingContainer);
@@ -543,10 +543,10 @@ abstract class ModelElement
     // Since we're looking for a library, find the [Element] immediately
     // contained by a [CompilationUnitElement] in the tree.
     var topLevelElement = element;
-    while (topLevelElement.enclosingElement is! LibraryElement &&
-        topLevelElement.enclosingElement is! CompilationUnitElement &&
-        topLevelElement.enclosingElement != null) {
-      topLevelElement = topLevelElement.enclosingElement!;
+    while (topLevelElement.enclosingElement3 is! LibraryElement &&
+        topLevelElement.enclosingElement3 is! CompilationUnitElement &&
+        topLevelElement.enclosingElement3 != null) {
+      topLevelElement = topLevelElement.enclosingElement3!;
     }
     var topLevelElementName = topLevelElement.name;
     if (topLevelElementName == null) {

lib/src/model/model_function.dart

@@ -29,7 +29,7 @@ class ModelFunctionTypedef extends ModelFunctionTyped {
   ModelFunctionTypedef(super.element, super.library, super.packageGraph);
 
   @override
-  String get name => element.enclosingElement!.name!;
+  String get name => element.enclosingElement3!.name!;
 }
 
 class ModelFunctionTyped extends ModelElement with TypeParameters {

lib/src/model/package_graph.dart

@@ -778,7 +778,7 @@ class PackageGraph with CommentReferable, Nameable {
       lib = preferredClass.canonicalLibrary;
     }
     // For elements defined in extensions, they are canonical.
-    var enclosingElement = element.enclosingElement;
+    var enclosingElement = element.enclosingElement3;
     if (enclosingElement is ExtensionElement) {
       lib ??= getModelForElement(enclosingElement.library) as Library?;
       // TODO(keertip): Find a better way to exclude members of extensions

lib/src/model/parameter.dart

@@ -20,7 +20,7 @@ class Parameter extends ModelElement with HasNoPage {
 
   @override
   ModelElement? get enclosingElement {
-    final enclosingElement = element.enclosingElement;
+    final enclosingElement = element.enclosingElement3;
     return enclosingElement == null
         ? null
         : getModelFor(enclosingElement, library);
@@ -36,7 +36,7 @@ class Parameter extends ModelElement with HasNoPage {
 
   @override
   String get htmlId {
-    final enclosingElement = element.enclosingElement;
+    final enclosingElement = element.enclosingElement3;
     if (enclosingElement == null) {
       return 'param-$name';
     }
@@ -46,8 +46,8 @@ class Parameter extends ModelElement with HasNoPage {
       // name. Also, allowing null here is allowed as a workaround for
       // dart-lang/sdk#32005.
       for (Element e = enclosingElement;
-          e.enclosingElement != null;
-          e = e.enclosingElement!) {
+          e.enclosingElement3 != null;
+          e = e.enclosingElement3!) {
         enclosingName = e.name;
         if (enclosingName != null && enclosingName.isNotEmpty) break;
       }

lib/src/model/type_parameter.dart

@@ -15,7 +15,7 @@ class TypeParameter extends ModelElement with HasNoPage {
 
   @override
   ModelElement get enclosingElement =>
-      getModelFor(element.enclosingElement!, library);
+      getModelFor(element.enclosingElement3!, library);
 
   /// [TypeParameter]s don't have documentation pages, and don't link to the
   /// element on which they are declared.

lib/src/model_utils.dart

@@ -66,7 +66,7 @@ extension ElementExtension on Element {
     // GenericFunctionTypeElements have the name we care about in the enclosing
     // element.
     if (self is GenericFunctionTypeElement) {
-      var enclosingElementName = self.enclosingElement?.name;
+      var enclosingElementName = self.enclosingElement3?.name;
       if (enclosingElementName != null &&
           enclosingElementName.startsWith('_')) {
         return true;

pubspec.yaml

@@ -7,7 +7,7 @@ environment:
   sdk: ^3.2.0
 
 dependencies:
-  analyzer: ^6.5.0
+  analyzer: ^6.9.0
   args: ^2.4.1
   collection: ^1.17.0
   crypto: ^3.0.3

test/end2end/model_test.dart

@@ -1083,13 +1083,13 @@ void main() async {
     });
 
     test('Verify behavior of imperfect resolver', () {
-      expect(aImplementingThingy.element.enclosingElement,
+      expect(aImplementingThingy.element.enclosingElement3,
           equals(BaseThingy2.element));
-      expect(aImplementingThingyMethod.element.enclosingElement,
+      expect(aImplementingThingyMethod.element.enclosingElement3,
           equals(BaseThingy.element));
-      expect(aImplementingThingyField.element.enclosingElement,
+      expect(aImplementingThingyField.element.enclosingElement3,
           equals(BaseThingy.element));
-      expect(aImplementingThingyAccessor.element.enclosingElement,
+      expect(aImplementingThingyAccessor.element.enclosingElement3,
           equals(BaseThingy.element));
     });
   });
@@ -1698,7 +1698,7 @@ void main() async {
           fakeLibrary.classes.wherePublic.named('MIEEMixinWithOverride');
       var problematicOperator =
           MIEEMixinWithOverride.inheritedOperators.named('operator []=');
-      expect(problematicOperator.element.enclosingElement.name,
+      expect(problematicOperator.element.enclosingElement3.name,
           equals('_MIEEPrivateOverride'));
       expect(problematicOperator.canonicalModelElement!.enclosingElement!.name,
           equals('MIEEMixinWithOverride'));

tool/mustachio/builder.dart

@@ -47,7 +47,7 @@ Future<void> build(
   var typeSystem = library.typeSystem;
   var rendererSpecs = <RendererSpec>{};
   for (var renderer in library.metadata
-      .where((e) => e.element!.enclosingElement!.name == 'Renderer')) {
+      .where((e) => e.element!.enclosingElement3!.name == 'Renderer')) {
     rendererSpecs.add(_buildRendererSpec(renderer));
   }