dart:io | Change File.fullPath to FileSystemEntity.resolveSymbolicLinks.

sdk/lib/io/directory_impl.dart

 // Copyright (c) 2012, 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 dart.io;
 
 class _Directory extends FileSystemEntity implements Directory {
   static const CREATE_REQUEST = 0;
   static const DELETE_REQUEST = 1;
   static const EXISTS_REQUEST = 2;
   static const CREATE_TEMP_REQUEST = 3;
   static const LIST_START_REQUEST = 4;
   static const LIST_NEXT_REQUEST = 5;
   static const LIST_STOP_REQUEST = 6;
   static const RENAME_REQUEST = 7;
+  static const RESOLVE_SYMBOLIC_LINKS_REQUEST = 8;
 
   final String path;
   SendPort _directoryService;
 
   _Directory(String this.path) {
     if (path is! String) {
       throw new ArgumentError('${Error.safeToString(path)} '
                               'is not a String');
     }
   }
@@ skipping 171 matching lines @@
     });
   }
 
   void _deleteSync({recursive: false}) {
     var result = _deleteNative(path, recursive);
     if (result is OSError) {
       throw new DirectoryException("Deletion failed", path, result);
     }
   }
 
+  Future<String> resolveSymbolicLinks() {
+    _ensureDirectoryService();
+    List request = new List(2);
+    request[0] = RESOLVE_SYMBOLIC_LINKS_REQUEST;
+    request[1] = path;
+    return _directoryService.call(request).then((response) {
+      if (_isErrorResponse(response)) {
+        throw _exceptionOrErrorFromResponse(response,
+                                            "Cannot resolve symbolic links");
+      }
+      return response;
+    });
+  }
+
+  String resolveSymbolicLinksSync() {
+    var result = _File._resolveSymbolicLinks(path);
+    if (result is OSError) {
+      throw new DirectoryException(
+          "Cannot resolve symbolic links", path, result);
+    }
+    return result;
+  }
+
   Future<Directory> rename(String newPath) {
     _ensureDirectoryService();
     List request = new List(3);
     request[0] = RENAME_REQUEST;
     request[1] = path;
     request[2] = newPath;
     return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response, "Rename failed");
       }
@@ skipping 182 matching lines @@
       controller.addError(
           new DirectoryException("Directory listing failed",
                                  errorPath,
                                  err));
     } else {
       controller.addError(
           new DirectoryException("Internal error"));
     }
   }
 }