Implementation for 'search.findTopLevelDeclarations' API.

pkg/analysis_server/lib/src/search/search_domain.dart

Index: pkg/analysis_server/lib/src/search/search_domain.dart
diff --git a/pkg/analysis_server/lib/src/search/search_domain.dart b/pkg/analysis_server/lib/src/search/search_domain.dart
index 076ba42fdc275473ecc4d7a6228d6623733d0794..681c8033af1c150d35438b2716e5426eb3f2bbb3 100644
--- a/pkg/analysis_server/lib/src/search/search_domain.dart
+++ b/pkg/analysis_server/lib/src/search/search_domain.dart
@@ -13,6 +13,7 @@ import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_services/search/search_engine.dart';
 import 'package:analyzer/src/generated/element.dart';
+import 'package:analysis_server/src/search/top_level_declarations.dart';
 
 /**
  * Instances of the class [SearchDomainHandler] implement a [RequestHandler]
@@ -52,7 +53,7 @@ class SearchDomainHandler implements RequestHandler {
     elements.forEach((Element element) {
       var computer = new ElementReferencesComputer(searchEngine);
       var future = computer.compute(element, includePotential);
-      return future.then((List<SearchResult> results) {
+      future.then((List<SearchResult> results) {
         bool isLast = identical(element, elements.last);
         _sendSearchNotification(searchId, isLast, results);
       });
@@ -83,11 +84,18 @@ class SearchDomainHandler implements RequestHandler {
   }
 
   Response findTopLevelDeclarations(Request request) {
-    // pattern
-    RequestDatum patternDatum = request.getRequiredParameter(FILE);
-    String pattern = patternDatum.asString();
-    // TODO(brianwilkerson) implement
-    return null;
+    String pattern = request.getRequiredParameter(PATTERN).asString();
+    // schedule search
+    String searchId = (_nextSearchId++).toString();
+    new Future.microtask(() {
+      var computer = new TopLevelDeclarationsComputer(searchEngine);
+      var future = computer.compute(pattern);
+      future.then((List<SearchResult> results) {
+        _sendSearchNotification(searchId, true, results);
+      });
+    });
+    // respond
+    return new Response(request.id)..setResult(ID, searchId);
   }
 
   @override