Validate that root paths are absolute and normalized.

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 167 matching lines @@
    * A table mapping [AnalysisService]s to the file paths for which these
    * notifications should be sent.
    */
   Map<AnalysisService, Set<String>> analysisServices =
       new HashMap<AnalysisService, Set<String>>();
 
   /**
    * A table mapping [AnalysisContext]s to the completers that should be
    * completed when analysis of this context is finished.
    */
-  Map<AnalysisContext,
-          Completer<AnalysisDoneReason>> contextAnalysisDoneCompleters =
+  Map<AnalysisContext, Completer<AnalysisDoneReason>>
+      contextAnalysisDoneCompleters =
       new HashMap<AnalysisContext, Completer<AnalysisDoneReason>>();
 
   /**
    * Performance information before initial analysis is complete.
    */
   ServerPerformance performanceDuringStartup = new ServerPerformance();
 
   /**
    * Performance information after initial analysis is complete
    * or `null` if the initial analysis is not yet complete
@@ skipping 525 matching lines @@
   }
 
   /**
    * Return `true` if analysis is complete.
    */
   bool isAnalysisComplete() {
     return operationQueue.isEmpty;
   }
 
   /**
+   * Return `true` if the given path is a valid `FilePath`.
+   *
+   * This means that it is absolute and normalized.
+   */
+  bool isValidFilePath(String path) {
+    return resourceProvider.absolutePathContext.isValid(path);
+  }
+
+  /**
    * Returns a [Future] completing when [file] has been completely analyzed, in
    * particular, all its errors have been computed.  The future is completed
    * with an [AnalysisDoneReason] indicating what caused the file's analysis to
    * be considered complete.
    *
    * If the given file doesn't belong to any context, null is returned.
    *
    * TODO(scheglov) this method should be improved.
    *
    * 1. The analysis context should be told to analyze this particular file ASAP.
@@ skipping 922 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');
 }