[element model] migrate scope

Bug: https://github.com/dart-lang/linter/issues/5099
Change-Id: I85deb22dbe24f024ea69643dc4a3b30348a7fbad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/394880
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Phil Quitslund <[email protected]>

pkg/analyzer/lib/dart/element/scope.dart

@@ -3,6 +3,7 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/element2.dart';
 
 /// Scopes are used to resolve names to elements.
 ///
@@ -21,5 +22,7 @@ abstract class Scope {
 /// Clients may not extend, implement or mix-in this class.
 abstract class ScopeLookupResult {
   Element? get getter;
+  Element2? get getter2;
   Element? get setter;
+  Element2? get setter2;
 }

pkg/analyzer/lib/src/dart/element/scope.dart

@@ -5,11 +5,13 @@
 import 'package:_fe_analyzer_shared/src/scanner/string_canonicalizer.dart';
 import 'package:analyzer/dart/analysis/features.dart';
 import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/dart/element/scope.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/dart/element/extensions.dart';
 import 'package:analyzer/src/summary2/combinator.dart';
 import 'package:analyzer/src/utilities/extensions/collection.dart';
+import 'package:analyzer/src/utilities/extensions/element.dart';
 
 /// The scope for the initializers in a constructor.
 class ConstructorInitializerScope extends EnclosedScope {
@@ -774,6 +776,11 @@ class ScopeLookupResultImpl implements ScopeLookupResult {
     required this.getter,
     required this.setter,
   });
+
+  @override
+  Element2? get getter2 => getter?.asElement2;
+  @override
+  Element2? get setter2 => setter?.asElement2;
 }
 
 class TypeParameterScope extends EnclosedScope {

pkg/linter/analyzer_use_new_elements.txt

@@ -1,6 +1,5 @@
 lib/src/ast.dart
 lib/src/extensions.dart
-lib/src/rules/avoid_renaming_method_parameters.dart
 lib/src/rules/avoid_setters_without_getters.dart
 lib/src/rules/avoid_void_async.dart
 lib/src/rules/deprecated_member_use_from_same_package.dart
@@ -14,5 +13,4 @@ lib/src/rules/use_build_context_synchronously.dart
 lib/src/rules/use_late_for_private_fields_and_variables.dart
 lib/src/util/dart_type_utilities.dart
 lib/src/util/flutter_utils.dart
-lib/src/util/scope.dart
 test/rules/use_build_context_synchronously_test.dart

pkg/linter/lib/src/rules/avoid_types_as_parameter_names.dart

@@ -66,7 +66,7 @@ class _Visitor extends SimpleAstVisitor<void> {
     var result =
         resolveNameInScope(name.lexeme, scope, shouldResolveSetter: false);
     if (result.isRequestedName) {
-      var element = result.element2;
+      var element = result.element;
       return element is ClassElement2 ||
           element is ExtensionTypeElement2 ||
           element is TypeAliasElement2 ||

pkg/linter/lib/src/rules/unnecessary_this.dart

@@ -74,7 +74,7 @@ class _Visitor extends SimpleAstVisitor<void> {
     // The requested element is inherited, or from an extension.
     if (result.isNone) return true;
 
-    var resultElement = result.element2;
+    var resultElement = result.element;
 
     // The result has the matching name, might be shadowing.
     // Check that the element is the same.

pkg/linter/lib/src/util/scope.dart

@@ -2,15 +2,12 @@
 // 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.
 
-import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/dart/element/scope.dart';
 // ignore: implementation_imports
 import 'package:analyzer/src/dart/ast/ast.dart';
 // ignore: implementation_imports
 import 'package:analyzer/src/generated/resolver.dart' show ScopeResolverVisitor;
-// ignore: implementation_imports
-import 'package:analyzer/src/utilities/extensions/element.dart';
 
 LinterNameInScopeResolutionResult resolveNameInScope(
   String id,
@@ -26,9 +23,9 @@ LinterNameInScopeResolutionResult resolveNameInScope(
   }
 
   if (scope != null) {
-    var ScopeLookupResult(:setter, :getter) = scope.lookup(id);
-    var requestedElement = shouldResolveSetter ? setter : getter;
-    var differentElement = shouldResolveSetter ? getter : setter;
+    var ScopeLookupResult(:setter2, :getter2) = scope.lookup(id);
+    var requestedElement = shouldResolveSetter ? setter2 : getter2;
+    var differentElement = shouldResolveSetter ? getter2 : setter2;
 
     if (requestedElement != null) {
       return LinterNameInScopeResolutionResult._requestedName(requestedElement);
@@ -45,7 +42,7 @@ LinterNameInScopeResolutionResult resolveNameInScope(
 /// The result of resolving of a basename `id` in a scope.
 class LinterNameInScopeResolutionResult {
   /// The element with the requested basename, `null` is [isNone].
-  final Element? element;
+  final Element2? element;
 
   /// The state of the result.
   final _LinterNameInScopeResolutionResultState _state;
@@ -60,9 +57,6 @@ class LinterNameInScopeResolutionResult {
   const LinterNameInScopeResolutionResult._requestedName(this.element)
       : _state = _LinterNameInScopeResolutionResultState.requestedName;
 
-  /// The element with the requested basename, `null` is [isNone].
-  Element2? get element2 => element.asElement2;
-
   bool get isDifferentName =>
       _state == _LinterNameInScopeResolutionResultState.differentName;
 

pkg/linter/test/scope_util_test.dart

@@ -885,7 +885,7 @@ mixin A<T> {
   void _resultDifferent(
       AstNode node, String id, bool setter, Element2 element) {
     var result = resolveNameInScope(id, node, shouldResolveSetter: setter);
-    if (!result.isDifferentName || result.element2 != element) {
+    if (!result.isDifferentName || result.element != element) {
       fail('Expected different $element, actual: $result');
     }
   }
@@ -900,7 +900,7 @@ mixin A<T> {
   void _resultRequested(
       AstNode node, String id, bool setter, Element2 element) {
     var result = resolveNameInScope(id, node, shouldResolveSetter: setter);
-    if (!result.isRequestedName || result.element2 != element) {
+    if (!result.isRequestedName || result.element != element) {
       fail('Expected requested $element, actual: $result');
     }
   }