Give structured information about imports and export in the service's library response.

runtime/observatory/lib/src/service/object.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.
 
 part of service;
 
 /// An RpcException represents an exceptional event that happened
 /// while invoking an rpc.
 abstract class RpcException implements Exception {
   RpcException(this.message);
@@ skipping 1567 matching lines @@
 
   String toString() {
     if (number != null) {
       return 'Breakpoint ${number} at ${script.name}(token:${tokenPos})';
     } else {
       return 'Uninitialized breakpoint';
     }
   }
 }
 
+
+class LibraryDependency {
+  @reflectable final bool isImport;
+  @reflectable final bool isDeferred;
+  @reflectable final String prefix;
+  @reflectable final Library target;
+
+  bool get isExport => !isImport;
+
+  LibraryDependency._(this.isImport, this.isDeferred, this.prefix, this.target);
+
+  static _fromMap(map) => new LibraryDependency._(map["isImport"],
+                                                  map["isDeferred"],
+                                                  map["prefix"],
+                                                  map["target"]);
+}
+
+
 class Library extends ServiceObject with Coverage {
   @observable String uri;
-  @reflectable final imports = new ObservableList<Library>();
+  @reflectable final dependencies = new ObservableList<LibraryDependency>();
   @reflectable final scripts = new ObservableList<Script>();
   @reflectable final classes = new ObservableList<Class>();
   @reflectable final variables = new ObservableList<Field>();
   @reflectable final functions = new ObservableList<ServiceFunction>();
 
   bool get canCache => true;
   bool get immutable => false;
 
   Library._empty(ServiceObjectOwner owner) : super._empty(owner);
 
   void _update(ObservableMap map, bool mapIsRef) {
     uri = map['uri'];
     var shortUri = uri;
     if (uri.startsWith('file://') ||
         uri.startsWith('http://')) {
       shortUri = uri.substring(uri.lastIndexOf('/') + 1);
     }
     name = map['name'];
     if (name.isEmpty) {
       // When there is no name for a library, use the shortUri.
       name = shortUri;
     }
     vmName = (map.containsKey('vmName') ? map['vmName'] : name);
     if (mapIsRef) {
       return;
     }
     _loaded = true;
     _upgradeCollection(map, isolate);
-    imports.clear();
-    imports.addAll(removeDuplicatesAndSortLexical(map['imports']));
+    dependencies.clear();
+    dependencies.addAll(map["dependencies"].map(LibraryDependency._fromMap));
     scripts.clear();
     scripts.addAll(removeDuplicatesAndSortLexical(map['scripts']));
     classes.clear();
     classes.addAll(map['classes']);
     classes.sort(ServiceObject.LexicalSortName);
     variables.clear();
     variables.addAll(map['variables']);
     variables.sort(ServiceObject.LexicalSortName);
     functions.clear();
     functions.addAll(map['functions']);
@@ skipping 1526 matching lines @@
     var v = list[i];
     if ((v is ObservableMap) && _isServiceMap(v)) {
       list[i] = owner.getFromMap(v);
     } else if (v is ObservableList) {
       _upgradeObservableList(v, owner);
     } else if (v is ObservableMap) {
       _upgradeObservableMap(v, owner);
     }
   }
 }