Store subtyped names in Analysis Driver unlinked units.

pkg/analyzer/lib/src/dart/analysis/file_state.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // 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 'dart:async';
 import 'dart:convert';
 import 'dart:typed_data';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
@@ skipping 98 matching lines @@
   final bool isInExternalSummaries;
 
   bool _exists;
   List<int> _contentBytes;
   String _content;
   String _contentHash;
   LineInfo _lineInfo;
   Set<String> _definedTopLevelNames;
   Set<String> _definedClassMemberNames;
   Set<String> _referencedNames;
+  Set<String> _subtypedNames;
   UnlinkedUnit _unlinked;
   List<int> _apiSignature;
 
   List<FileState> _importedFiles;
   List<FileState> _exportedFiles;
   List<FileState> _partedFiles;
   List<NameFilter> _exportFilters;
 
   Set<FileState> _directReferencedFiles = new Set<FileState>();
   Set<FileState> _transitiveFiles;
@@ skipping 141 matching lines @@
    * The list of files this library file references as parts.
    */
   List<FileState> get partedFiles => _partedFiles;
 
   /**
    * The external names referenced by the file.
    */
   Set<String> get referencedNames => _referencedNames;
 
   /**
+   * The names which are used in `extends`, `with` or `implements` clauses in
+   * the file. Import prefixes and type arguments are not included.
+   */
+  Set<String> get subtypedNames => _subtypedNames;
+
+  /**
    * Return public top-level declarations declared in the file. The keys to the
    * map are names of declarations.
    */
   Map<String, TopLevelDeclaration> get topLevelDeclarations {
     if (_topLevelDeclarations == null) {
       _topLevelDeclarations = <String, TopLevelDeclaration>{};
 
       void addDeclaration(TopLevelDeclarationKind kind, String name) {
         if (!name.startsWith('_')) {
           _topLevelDeclarations[name] = new TopLevelDeclaration(kind, name);
@@ skipping 138 matching lines @@
     }
 
     // Prepare bytes of the unlinked bundle - existing or new.
     List<int> bytes;
     {
       bytes = _fsState._byteStore.get(unlinkedKey);
       if (bytes == null) {
         CompilationUnit unit = parse(AnalysisErrorListener.NULL_LISTENER);
         _fsState._logger.run('Create unlinked for $path', () {
           UnlinkedUnitBuilder unlinkedUnit = serializeAstUnlinked(unit);
+          DefinedNames definedNames = computeDefinedNames(unit);
           List<String> referencedNames = computeReferencedNames(unit).toList();
-          DefinedNames definedNames = computeDefinedNames(unit);
+          List<String> subtypedNames = computeSubtypedNames(unit).toList();
           bytes = new AnalysisDriverUnlinkedUnitBuilder(
                   unit: unlinkedUnit,
                   definedTopLevelNames: definedNames.topLevelNames.toList(),
                   definedClassMemberNames:
                       definedNames.classMemberNames.toList(),
-                  referencedNames: referencedNames)
+                  referencedNames: referencedNames,
+                  subtypedNames: subtypedNames)
               .toBuffer();
           _fsState._byteStore.put(unlinkedKey, bytes);
         });
       }
     }
 
     // Read the unlinked bundle.
     var driverUnlinkedUnit = new AnalysisDriverUnlinkedUnit.fromBuffer(bytes);
     _definedTopLevelNames = driverUnlinkedUnit.definedTopLevelNames.toSet();
     _definedClassMemberNames =
         driverUnlinkedUnit.definedClassMemberNames.toSet();
     _referencedNames = driverUnlinkedUnit.referencedNames.toSet();
+    _subtypedNames = driverUnlinkedUnit.subtypedNames.toSet();
     _unlinked = driverUnlinkedUnit.unit;
     _lineInfo = new LineInfo(_unlinked.lineStarts);
     _topLevelDeclarations = null;
 
     // Prepare API signature.
     List<int> newApiSignature = new Uint8List.fromList(_unlinked.apiSignature);
     bool apiSignatureChanged = _apiSignature != null &&
         !_equalByteLists(_apiSignature, newApiSignature);
     _apiSignature = newApiSignature;
 
@@ skipping 477 matching lines @@
   _FastaElementProxy operator [](fasta.Builder builder) =>
       _elements.putIfAbsent(builder, () => new _FastaElementProxy());
 
   @override
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }
 
 class _FastaInterfaceTypeProxy implements fasta.KernelInterfaceType {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }