Create LibraryElement with SDK context for SDK sources.

pkg/analyzer/lib/task/model.dart

 // Copyright (c) 2015, 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 analyzer.task.model;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/engine.dart' hide AnalysisTask;
 import 'package:analyzer/src/generated/java_engine.dart';
@@ skipping 73 matching lines @@
   /**
    * A table mapping the types of analysis tasks to stopwatches used to compute
    * how much time was spent executing each kind of task.
    */
   static final Map<Type, Stopwatch> stopwatchMap =
       new HashMap<Type, Stopwatch>();
 
   /**
    * The context in which the task is to be performed.
    */
-  final AnalysisContext context;
+  final InternalAnalysisContext context;

[Brian Wilkerson, 2015/06/11 18:49:51]

Clients are expected to extend AnalysisTask, but InternalAnalysisContext isn't
part of the public API, so we can't use it here.

To be safe, I suppose the code in the task should be something like:

AnalysisContext owningContext = context;
if (context is InternalAnalysisContext) {
  owningContext = context.getContextFor(librarySource);
}
... new LibraryElementImpl.forNode(owningContext, ...);

[scheglov, 2015/06/11 18:56:07]

Done.

 
   /**
    * The target for which result values are being produced.
    */
   final AnalysisTarget target;
 
   /**
    * A table mapping input names to input values.
    */
   Map<String, dynamic> inputs;
@@ skipping 402 matching lines @@
    * be computed, or `false` if the inputs have been computed.
    *
    * It is safe to invoke [moveNext] after it has returned `false`. In this case
    * [moveNext] has no effect and will again return `false`.
    *
    * Throws a [StateError] if the value of the current result has not been
    * provided using [currentValue].
    */
   bool moveNext();
 }