Support for NAVIGATION/OCCURRENCES notifications for any source (such as HTML).

pkg/analysis_server/lib/src/analysis_server.dart

 // Copyright (c) 2014, 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.
 
 library analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:core' hide Resource;
 import 'dart:math' show max;
@@ skipping 933 matching lines @@
       Set<String> oldFiles = analysisServices[service];
       Set<String> todoFiles =
           oldFiles != null ? newFiles.difference(oldFiles) : newFiles;
       for (String file in todoFiles) {
         ContextSourcePair contextSource = getContextSourcePair(file);
         // prepare context
         AnalysisContext context = contextSource.context;
         if (context == null) {
           continue;
         }
+        Source source = contextSource.source;
+        // Ensure that if the AST is flushed / not ready, it will be
+        // computed eventually.
+        if (AnalysisEngine.isDartFileName(file)) {
+          (context as InternalAnalysisContext).ensureResolvedDartUnits(source);
+        }
+        // Send notifications that don't directly take an AST.
+        switch (service) {
+          case AnalysisService.NAVIGATION:
+            sendAnalysisNotificationNavigation(this, context, source);
+            continue;
+          case AnalysisService.OCCURRENCES:
+            sendAnalysisNotificationOccurrences(this, context, source);
+            continue;
+        }
         // Dart unit notifications.
         if (AnalysisEngine.isDartFileName(file)) {
-          Source source = contextSource.source;
           // TODO(scheglov) This way to get resolved information is very Dart
           // specific. OTOH as it is planned now Angular results are not
           // flushable.
           CompilationUnit dartUnit =
               _getResolvedCompilationUnitToResendNotification(context, source);
           if (dartUnit != null) {
             switch (service) {
               case AnalysisService.HIGHLIGHTS:
                 sendAnalysisNotificationHighlights(this, file, dartUnit);
                 break;
-              case AnalysisService.NAVIGATION:
-                sendAnalysisNotificationNavigation(this, context, source);
-                break;
-              case AnalysisService.OCCURRENCES:
-                sendAnalysisNotificationOccurrences(this, context, source);
-                break;
               case AnalysisService.OUTLINE:
                 AnalysisContext context = dartUnit.element.context;
                 LineInfo lineInfo = context.getLineInfo(source);
                 sendAnalysisNotificationOutline(this, file, lineInfo, dartUnit);
                 break;
               case AnalysisService.OVERRIDES:
                 sendAnalysisNotificationOverrides(this, file, dartUnit);
                 break;
             }
           }
@@ skipping 569 matching lines @@
   /**
    * The [PerformanceTag] for time spent in server request handlers.
    */
   static PerformanceTag serverRequests = new PerformanceTag('serverRequests');
 
   /**
    * The [PerformanceTag] for time spent in split store microtasks.
    */
   static PerformanceTag splitStore = new PerformanceTag('splitStore');
 }