Elements. Migrate to Element2 (#3968)

* Elements. Migrate to Element2

* Address comments

lib/src/model/library.dart

@@ -10,7 +10,8 @@ import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/dart/element/scope.dart';
 import 'package:analyzer/source/line_info.dart';
 // ignore: implementation_imports
-import 'package:analyzer/src/dart/element/element.dart';
+import 'package:analyzer/src/utilities/extensions/element.dart';
+// ignore: implementation_imports
 import 'package:dartdoc/src/model/comment_referable.dart';
 import 'package:dartdoc/src/model/kind.dart';
 import 'package:dartdoc/src/model/model.dart';
@@ -29,7 +30,7 @@ class Library extends ModelElement
   final LibraryElement element;
 
   @override
-   LibraryElement2 get element2 => element as LibraryElementImpl;
+   LibraryElement2 get element2 => element.asElement2;
 
   /// The set of [Element]s declared directly in this library.
   final Set<Element> _localElements;
@@ -315,7 +316,7 @@ class Library extends ModelElement
 
   /// The real packageMeta, as opposed to the package we are documenting with.
   late final PackageMeta? packageMeta =
-      packageGraph.packageMetaProvider.fromElement(element2, config.sdkDir);
+      packageGraph.packageMetaProvider.fromElement(element.asElement2, config.sdkDir);
 
   late final List<Class> classesAndExceptions = [
     ..._localElementsOfType<ClassElement, Class>(),

lib/src/warnings.dart

@@ -8,7 +8,10 @@ import 'dart:io';
 import 'dart:math' as math;
 
 import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/file_system/file_system.dart';
+// ignore: implementation_imports
+import 'package:analyzer/src/utilities/extensions/element.dart';
 import 'package:collection/collection.dart';
 import 'package:dartdoc/src/dartdoc_options.dart';
 import 'package:dartdoc/src/logging.dart';
@@ -498,6 +501,13 @@ class PackageWarningCounter {
   UnmodifiableMapView<Element?, Map<PackageWarning, Set<String>>>
       get countedWarnings => UnmodifiableMapView(_countedWarnings);
 
+  /// An unmodifiable map view of all counted warnings related by their element,
+  /// warning type, and message.
+  UnmodifiableMapView<Element2?, Map<PackageWarning, Set<String>>>
+      get countedWarnings2 => UnmodifiableMapView(_countedWarnings.map((key,
+              value) =>
+          MapEntry(key?.asElement2, value)));
+
   PackageWarningCounter(this.packageGraph);
 
   /// Logs [packageWarning].

test/documentation_comment_test.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// ignore_for_file: analyzer_use_new_elements
-
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:dartdoc/src/dartdoc_options.dart';
 import 'package:dartdoc/src/model/model.dart';
@@ -30,7 +28,7 @@ class DocumentationCommentTest extends DartdocTestBase {
   late ModelElement libraryModel;
 
   void expectNoWarnings() {
-    expect(packageGraph.packageWarningCounter.countedWarnings, isEmpty);
+    expect(packageGraph.packageWarningCounter.countedWarnings2, isEmpty);
     expect(packageGraph.packageWarningCounter.hasWarnings, isFalse);
   }
 
@@ -863,7 +861,7 @@ class _HasWarning extends Matcher {
       Map<Object?, Object?> matchState, bool verbose) {
     if (actual is ModelElement) {
       var warnings = actual
-          .packageGraph.packageWarningCounter.countedWarnings[actual.element];
+          .packageGraph.packageWarningCounter.countedWarnings2[actual.element2];
       if (warnings == null) {
         return mismatchDescription.add('has no warnings');
       }

test/end2end/dartdoc_test.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// ignore_for_file: analyzer_use_new_elements
-
 import 'dart:async';
 
 import 'package:analyzer/file_system/file_system.dart';
@@ -84,7 +82,7 @@ void main() {
           await buildDartdoc(['--allow-tools'], testPackageToolError, tempDir);
       var results = await dartdoc.generateDocsBase();
       var p = results.packageGraph;
-      var unresolvedToolErrors = p.packageWarningCounter.countedWarnings.values
+      var unresolvedToolErrors = p.packageWarningCounter.countedWarnings2.values
           .map((e) => e[PackageWarning.toolError] ?? {})
           .expand((element) => element);
 

test/mustachio/runtime_renderer_builder_test.dart

@@ -2,23 +2,21 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// ignore_for_file: analyzer_use_new_elements
-
 @TestOn('vm && !windows')
 @Timeout.factor(2)
 library;
 
 import 'dart:io';
 
-import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/element2.dart';
 import 'package:test/test.dart';
 import 'package:test_descriptor/test_descriptor.dart' as d;
 
 import 'builder_test_base.dart';
 
 void main() {
   group('builds a renderer class', () {
-    late final LibraryElement renderersLibrary;
+    late final LibraryElement2 renderersLibrary;
     late final String generatedContent;
 
     // Builders are fairly expensive (about 4 seconds per `testBuilder` call),
@@ -42,7 +40,7 @@ abstract class Foo extends FooBase with Mix<int> {
 class Bar {}
 class Baz {}
 ''');
-      renderersLibrary = await resolveGeneratedLibrary(runtimeRenderersPath);
+      renderersLibrary = await resolveGeneratedLibrary2(runtimeRenderersPath);
       generatedContent = await File(runtimeRenderersPath).readAsString();
     });
 
@@ -63,23 +61,23 @@ class Baz {}
     test('for a class which is extended by a rendered class', () {
       // No render function is necessary.
       expect(renderersLibrary.getTopLevelFunction('_render_FooBase'), isNull);
-      expect(renderersLibrary.getClass('_Renderer_FooBase'), isNotNull);
+      expect(renderersLibrary.getClass2('_Renderer_FooBase'), isNotNull);
     });
 
     test('for a class which is mixed into a rendered class', () {
       // No render function is necessary.
       expect(renderersLibrary.getTopLevelFunction('_render_Mix'), isNull);
-      expect(renderersLibrary.getClass('_Renderer_Mix'), isNotNull);
+      expect(renderersLibrary.getClass2('_Renderer_Mix'), isNotNull);
     });
 
     test('for a type found in a getter', () {
       expect(renderersLibrary.getTopLevelFunction('_render_Bar'), isNotNull);
-      expect(renderersLibrary.getClass('_Renderer_Bar'), isNotNull);
+      expect(renderersLibrary.getClass2('_Renderer_Bar'), isNotNull);
     });
 
     test('for a generic, bounded type found in a getter', () {
       expect(renderersLibrary.getTopLevelFunction('_render_Baz'), isNotNull);
-      expect(renderersLibrary.getClass('_Renderer_Baz'), isNotNull);
+      expect(renderersLibrary.getClass2('_Renderer_Baz'), isNotNull);
     });
 
     test('with a property map', () {
@@ -190,12 +188,12 @@ class Baz {}
 library foo;
 import 'annotations.dart';
 ''');
-    var renderersLibrary = await resolveGeneratedLibrary(runtimeRenderersPath);
+    var renderersLibrary = await resolveGeneratedLibrary2(runtimeRenderersPath);
 
     expect(renderersLibrary.getTopLevelFunction('renderFoo'), isNotNull);
     expect(renderersLibrary.getTopLevelFunction('renderBar'), isNotNull);
-    expect(renderersLibrary.getClass('_Renderer_Foo'), isNotNull);
-    expect(renderersLibrary.getClass('_Renderer_Bar'), isNotNull);
+    expect(renderersLibrary.getClass2('_Renderer_Foo'), isNotNull);
+    expect(renderersLibrary.getClass2('_Renderer_Bar'), isNotNull);
   });
 
   group('builds a renderer class for a generic type', () {
@@ -267,21 +265,21 @@ class Foo<T extends num> {
 class Bar {}
 class Baz {}
 ''');
-    var renderersLibrary = await resolveGeneratedLibrary(runtimeRenderersPath);
+    var renderersLibrary = await resolveGeneratedLibrary2(runtimeRenderersPath);
 
     var fooRenderFunction = renderersLibrary.getTopLevelFunction('renderFoo')!;
-    expect(fooRenderFunction.typeParameters, hasLength(1));
-    var fBound = fooRenderFunction.typeParameters.single.bound!;
+    expect(fooRenderFunction.typeParameters2, hasLength(1));
+    var fBound = fooRenderFunction.typeParameters2.single.bound!;
     expect(fBound.getDisplayString(), equals('num'));
 
-    var fooRendererClass = renderersLibrary.getClass('_Renderer_Foo')!;
-    expect(fooRendererClass.typeParameters, hasLength(1));
-    var cBound = fooRenderFunction.typeParameters.single.bound!;
+    var fooRendererClass = renderersLibrary.getClass2('_Renderer_Foo')!;
+    expect(fooRendererClass.typeParameters2, hasLength(1));
+    var cBound = fooRenderFunction.typeParameters2.single.bound!;
     expect(cBound.getDisplayString(), equals('num'));
   });
 
   group('does not generate a renderer', () {
-    late final LibraryElement renderersLibrary;
+    late final LibraryElement2 renderersLibrary;
 
     setUpAll(() async {
       await testMustachioBuilder('''
@@ -299,32 +297,32 @@ class Private {}
 class Setter {}
 class Method {}
 ''');
-      renderersLibrary = await resolveGeneratedLibrary(runtimeRenderersPath);
+      renderersLibrary = await resolveGeneratedLibrary2(runtimeRenderersPath);
     });
 
     test('found in a static getter', () {
       expect(renderersLibrary.getTopLevelFunction('_render_Static'), isNull);
-      expect(renderersLibrary.getClass('_Renderer_Static'), isNull);
+      expect(renderersLibrary.getClass2('_Renderer_Static'), isNull);
     });
 
     test('found in a private getter', () {
       expect(renderersLibrary.getTopLevelFunction('_render_Private'), isNull);
-      expect(renderersLibrary.getClass('_Renderer_Private'), isNull);
+      expect(renderersLibrary.getClass2('_Renderer_Private'), isNull);
     });
 
     test('found in a setter', () {
       expect(renderersLibrary.getTopLevelFunction('_render_Setter'), isNull);
-      expect(renderersLibrary.getClass('_Renderer_Setter'), isNull);
+      expect(renderersLibrary.getClass2('_Renderer_Setter'), isNull);
     });
 
     test('found in a method', () {
       expect(renderersLibrary.getTopLevelFunction('_render_Method'), isNull);
-      expect(renderersLibrary.getClass('_Renderer_Method'), isNull);
+      expect(renderersLibrary.getClass2('_Renderer_Method'), isNull);
     });
 
     test('for types not @visibleToMustache', () {
       expect(renderersLibrary.getTopLevelFunction('_render_String'), isNull);
-      expect(renderersLibrary.getClass('_Renderer_String'), isNull);
+      expect(renderersLibrary.getClass2('_Renderer_String'), isNull);
     });
   });
 }

test/src/utils.dart

@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// ignore_for_file: analyzer_use_new_elements
-
 import 'dart:io';
 
 import 'package:analyzer/file_system/file_system.dart';