Remove the unnecessary Privacy mixin (#3794)

Author: srawlins

lib/src/element_type.dart

@@ -20,7 +20,7 @@ import 'package:meta/meta.dart';
 
 /// Base class representing a type in Dartdoc.  It wraps a [DartType], and
 /// may link to a [ModelElement].
-abstract class ElementType with CommentReferable, Nameable implements Privacy {
+abstract class ElementType with CommentReferable, Nameable {
   final DartType type;
   @override
   final PackageGraph packageGraph;

lib/src/generator/templates.runtime_renderers.dart

@@ -16301,7 +16301,6 @@ const _invisibleGetters = {
     'allHrefs',
     'allImplementersAdded',
     'allInheritableElements',
-    'allLibraries',
     'allLibrariesAdded',
     'analysisContext',
     'breadcrumbName',

lib/src/model/annotation.dart

@@ -55,7 +55,6 @@ final class Annotation extends Attribute {
         'non-callable element used as annotation?: ${_annotation.element}')
   };
 
-  @override
   bool get isPublic {
     final modelType = _modelType;
     if (!modelType.isPublic) {

lib/src/model/attribute.dart

@@ -3,7 +3,6 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:collection/collection.dart';
-import 'package:dartdoc/src/model/privacy.dart';
 import 'package:meta/meta.dart';
 
 int byAttributeOrdering(Attribute a, Attribute b) {
@@ -16,7 +15,7 @@ int byAttributeOrdering(Attribute a, Attribute b) {
 ///
 /// These include both explicit annotations in code (e.g. `deprecated`) as well
 /// as others added by the documentation system (e.g. 'no setter').
-abstract class Attribute implements Privacy {
+abstract class Attribute {
   // A name, only used for sorting.
   @visibleForOverriding
   final String name;
@@ -57,9 +56,6 @@ abstract class Attribute implements Privacy {
 final class _BuiltInAttribute extends Attribute {
   const _BuiltInAttribute(super.name, super.sortGroup);
 
-  @override
-  bool get isPublic => false;
-
   @override
   String get linkedName => name;
 

lib/src/model/documentation.dart

@@ -37,7 +37,12 @@ class Documentation {
       // situation where one public getter might set both fields, but might only
       // set one. We have this awkward check to make sure we set both fields if
       // we'll need both fields.
-      assert(_element.isCanonical);
+      assert(
+        _element.isCanonical,
+        "generating docs for non-canonical element: '$_element' "
+        "('${_element.runtimeType}', ${_element.hashCode}), representing "
+        "'${_element.element}'",
+      );
       return _asHtml;
     }
 

lib/src/model/model.dart

@@ -39,7 +39,6 @@ export 'package.dart';
 export 'package_builder.dart';
 export 'package_graph.dart';
 export 'parameter.dart';
-export 'privacy.dart';
 export 'source_code_mixin.dart';
 export 'top_level_container.dart';
 export 'top_level_variable.dart';

lib/src/model/model_element.dart

@@ -69,7 +69,7 @@ abstract class ModelElement
         Indexable,
         FeatureSet,
         DocumentationComment
-    implements Comparable<ModelElement>, Documentable, Privacy {
+    implements Comparable<ModelElement>, Documentable {
   // TODO(jcollins-g): This really wants a "member that has a type" class.
   final Member? _originalMember;
   final Library _library;

lib/src/model/nameable.dart

@@ -11,10 +11,9 @@ import 'package:dartdoc/src/model/container.dart';
 import 'package:dartdoc/src/model/library.dart';
 import 'package:dartdoc/src/model/model_element.dart';
 import 'package:dartdoc/src/model/package_graph.dart';
-import 'package:dartdoc/src/model/privacy.dart';
 
 /// Something that has a name.
-mixin Nameable implements Privacy {
+mixin Nameable {
   String get name;
 
   /// A qualified name, mostly for use in the web search functionality, and for
@@ -27,7 +26,16 @@ mixin Nameable implements Privacy {
   /// The name to use in breadcrumbs in the rendered documentation.
   String get breadcrumbName => name;
 
-  @override
+  /// Whether this is "package-public."
+  ///
+  /// A "package-public" element satisfies the following requirements:
+  /// * is not documented with the `@nodoc` directive,
+  /// * for a library, is found in a package's top-level 'lib' directory, and
+  ///   not found in it's 'lib/src' directory,
+  /// * for a library member, is in a _public_ library's exported namespace, and
+  ///   is not privately named, nor an unnamed extension,
+  /// * for a container (class, enum, extension, extension type, mixin) member,
+  ///   is in a _public_ container, and is not privately named.
   bool get isPublic => name.isNotEmpty && !name.startsWith('_');
 
   @override

lib/src/model/package.dart

@@ -29,8 +29,7 @@ const String htmlBasePlaceholder = r'%%__HTMLBASE_dartdoc_internal__%%';
 /// A [LibraryContainer] that contains [Library] objects related to a particular
 /// package.
 class Package extends LibraryContainer
-    with Nameable, Locatable, Warnable, CommentReferable
-    implements Privacy {
+    with Nameable, Locatable, Warnable, CommentReferable {
   @override
   final String name;