Remove informational message

pkg/analyzer/lib/src/generated/source.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 engine.source;
 
 import 'dart:collection';
 import "dart:math" as math;
 
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 721 matching lines @@
 
   /**
    * Determines if the given [Source] is local.
    *
    * @param source the [Source] to analyze
    * @return `true` if the given [Source] is local
    */
   bool isLocalSource(Source source) => _localSourcePredicate.isLocal(source);
 
   /**
-   * Return a source object representing the URI that results from resolving the given (possibly
-   * relative) contained URI against the URI associated with an existing source object, whether or
-   * not the resulting source exists, or `null` if either the contained URI is invalid or if
-   * it cannot be resolved against the source object's URI.
-   *
-   * @param containingSource the source containing the given URI
-   * @param containedUri the (possibly relative) URI to be resolved against the containing source
-   * @return the source representing the contained URI
+   * Return a source representing the URI that results from resolving the given
+   * (possibly relative) [containedUri] against the URI associated with the
+   * [containingSource], whether or not the resulting source exists, or `null`
+   * if either the [containedUri] is invalid or if it cannot be resolved against
+   * the [containingSource]'s URI.
    */
   Source resolveUri(Source containingSource, String containedUri) {
     if (containedUri == null || containedUri.isEmpty) {
       return null;
     }
     try {
       // Force the creation of an escaped URI to deal with spaces, etc.
       return _internalResolveUri(
           containingSource, parseUriWithException(containedUri));
+    } on URISyntaxException {
+      return null;
     } catch (exception, stackTrace) {
       String containingFullName =
           containingSource != null ? containingSource.fullName : '<null>';
       AnalysisEngine.instance.logger.logInformation(

[Brian Wilkerson, 2015/12/08 19:37:13]

The other option would be to never log information, but I don't know that we
want to ignore every exception.

           "Could not resolve URI ($containedUri) relative to source ($containingFullName)",
           new CaughtException(exception, stackTrace));
       return null;
     }
   }
 
   /**
    * Return an absolute URI that represents the given source, or `null` if a valid URI cannot
    * be computed.
    *
@@ skipping 320 matching lines @@
   Source resolveAbsolute(Uri uri, [Uri actualUri]);
 
   /**
    * Return an absolute URI that represents the given [source], or `null` if a
    * valid URI cannot be computed.
    *
    * The computation should be based solely on [source.fullName].
    */
   Uri restoreAbsolute(Source source) => null;
 }