Clean up dart:io exceptions.

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 implements Directory {
   static const CREATE_REQUEST = 0;
   static const DELETE_REQUEST = 1;
   static const EXISTS_REQUEST = 2;
@@ skipping 14 matching lines @@
   external static List _list(String path, bool recursive, bool followLinks);
   external static SendPort _newServicePort();
 
   static Directory get current => new _Directory(_current());
 
   static void set current(path) {
     if (path is Directory) path = path.path;
     var result = _setCurrent(path);
     if (result is ArgumentError) throw result;
     if (result is OSError) {
-      throw new DirectoryIOException(
+      throw new DirectoryException(
           "Setting current working directory failed", path, result);
     }
   }
 
   Future<bool> exists() {
     _ensureDirectoryService();
     List request = new List(2);
     request[0] = EXISTS_REQUEST;
     request[1] = _path;
     return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response, "Exists failed");
       }
       return response == 1;
     });
   }
 
   bool existsSync() {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _exists(_path);
     if (result is OSError) {
-      throw new DirectoryIOException("Exists failed", _path, result);
+      throw new DirectoryException("Exists failed", _path, result);
     }
     return (result == 1);
   }
 
   Future<FileStat> stat() => FileStat.stat(path);
 
   FileStat statSync() => FileStat.statSync(path);
 
   // Compute the index of the first directory in the list that exists. If
   // none of the directories exist dirsToCreate.length is returned.
@@ skipping 78 matching lines @@
     }
   }
 
   void createSync({recursive: false}) {
     if (_path is !String) {
       throw new ArgumentError();
     }
     if (recursive) return createRecursivelySync();
     var result = _create(_path);
     if (result is OSError) {
-      throw new DirectoryIOException("Creation failed", _path, result);
+      throw new DirectoryException("Creation failed", _path, result);
     }
   }
 
   Future<Directory> createTemp() {
     _ensureDirectoryService();
     List request = new List(2);
     request[0] = CREATE_TEMP_REQUEST;
     request[1] = _path;
     return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response,
                                       "Creation of temporary directory failed");
       }
       return new Directory(response);
     });
   }
 
   Directory createTempSync() {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _createTemp(path);
     if (result is OSError) {
-      throw new DirectoryIOException("Creation of temporary directory failed",
+      throw new DirectoryException("Creation of temporary directory failed",
                                      _path,
                                      result);
     }
     return new Directory(result);
   }
 
   Future<Directory> _deleteHelper(bool recursive, String errorMsg) {
   }
 
   Future<Directory> delete({recursive: false}) {
     _ensureDirectoryService();
     List request = new List(3);
     request[0] = DELETE_REQUEST;
     request[1] = _path;
     request[2] = recursive;
     return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
         throw _exceptionOrErrorFromResponse(response, "Deletion failed");
       }
       return this;
     });
   }
 
   void deleteSync({recursive: false}) {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _delete(_path, recursive);
     if (result is OSError) {
-      throw new DirectoryIOException("Deletion failed", _path, result);
+      throw new DirectoryException("Deletion failed", _path, 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");
       }
       return new Directory(newPath);
     });
   }
 
   Directory renameSync(String newPath) {
     if (_path is !String || newPath is !String) {
       throw new ArgumentError();
     }
     var result = _rename(_path, newPath);
     if (result is OSError) {
-      throw new DirectoryIOException("Rename failed", _path, result);
+      throw new DirectoryException("Rename failed", _path, result);
     }
     return new Directory(newPath);
   }
 
   Stream<FileSystemEntity> list({bool recursive: false,
                                  bool followLinks: true}) {
     const int LIST_FILE = 0;
     const int LIST_DIRECTORY = 1;
     const int LIST_LINK = 2;
     const int LIST_ERROR = 3;
     const int LIST_DONE = 4;
 
     const int RESPONSE_TYPE = 0;
     const int RESPONSE_PATH = 1;
     const int RESPONSE_COMPLETE = 1;
     const int RESPONSE_ERROR = 2;
 
     var controller = new StreamController<FileSystemEntity>(sync: true);
 
     List request = [ _Directory.LIST_REQUEST, path, recursive, followLinks ];
     ReceivePort responsePort = new ReceivePort();
     // Use a separate directory service port for each listing as
     // listing operations on the same directory can run in parallel.
     _Directory._newServicePort().send(request, responsePort.toSendPort());
     responsePort.receive((message, replyTo) {
       if (message is !List || message[RESPONSE_TYPE] is !int) {
         responsePort.close();
-        controller.addError(new DirectoryIOException("Internal error"));
+        controller.addError(new DirectoryException("Internal error"));
         return;
       }
       switch (message[RESPONSE_TYPE]) {
         case LIST_FILE:
           controller.add(new File(message[RESPONSE_PATH]));
           break;
         case LIST_DIRECTORY:
           controller.add(new Directory(message[RESPONSE_PATH]));
           break;
         case LIST_LINK:
           controller.add(new Link(message[RESPONSE_PATH]));
           break;
         case LIST_ERROR:
           var errorType =
               message[RESPONSE_ERROR][_ERROR_RESPONSE_ERROR_TYPE];
           if (errorType == _ILLEGAL_ARGUMENT_RESPONSE) {
             controller.addError(new ArgumentError());
           } else if (errorType == _OSERROR_RESPONSE) {
             var responseError = message[RESPONSE_ERROR];
             var err = new OSError(
                 responseError[_OSERROR_RESPONSE_MESSAGE],
                 responseError[_OSERROR_RESPONSE_ERROR_CODE]);
             var errorPath = message[RESPONSE_PATH];
             if (errorPath == null) errorPath = path;
             controller.addError(
-                new DirectoryIOException("Directory listing failed",
+                new DirectoryException("Directory listing failed",
                                          errorPath,
                                          err));
           } else {
-            controller.addError(new DirectoryIOException("Internal error"));
+            controller.addError(new DirectoryException("Internal error"));
           }
           break;
         case LIST_DONE:
           responsePort.close();
           controller.close();
           break;
       }
     });
 
     return controller.stream;
@@ skipping 15 matching lines @@
   }
 
   _exceptionOrErrorFromResponse(response, String message) {
     assert(_isErrorResponse(response));
     switch (response[_ERROR_RESPONSE_ERROR_TYPE]) {
       case _ILLEGAL_ARGUMENT_RESPONSE:
         return new ArgumentError();
       case _OSERROR_RESPONSE:
         var err = new OSError(response[_OSERROR_RESPONSE_MESSAGE],
                               response[_OSERROR_RESPONSE_ERROR_CODE]);
-        return new DirectoryIOException(message, _path, err);
+        return new DirectoryException(message, _path, err);
       default:
         return new Exception("Unknown error");
     }
   }
 
   void _ensureDirectoryService() {
     if (_directoryService == null) {
       _directoryService = _newServicePort();
     }
   }
 
   final String _path;
   SendPort _directoryService;
 }