Big merge from experimental to bleeding edge.

sdk/lib/io/process.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;
 
 // TODO(ager): The only reason for this class is that we
 // cannot patch a top-level at this point.
 class _ProcessUtils {
   external static _exit(int status);
@@ skipping 24 matching lines @@
   if (status is !int) {
     throw new ArgumentError("setExitCode: int status expected");
   }
   _ProcessUtils._setExitCode(status);
 }
 
 /**
  * [Process] is used to start new processes using the static
  * [start] and [run] methods.
  */
-abstract class Process {
+abstract class Process extends StreamSink {
   /**
    * Starts a process running the [executable] with the specified
    * [arguments]. Returns a [:Future<Process>:] that completes with a
    * Process instance when the process has been successfully
    * started. That [Process] object can be used to interact with the
    * process. If the process cannot be started the returned [Future]
    * completes with an exception.
    *
    * An optional [ProcessOptions] object can be passed to specify
    * options other than the executable and the arguments.
@@ skipping 39 matching lines @@
   InputStream get stderr;
 
   /**
    * Returns an output stream to the process stdin.
    *
    * Throws an [UnsupportedError] if the process is
    * non-interactive.
    */
   OutputStream get stdin;
 
+
+  Stream<List<int>> get stdoutStream;
+  Stream<List<int>> get stderrStream;
+
   /**
    * Sets an exit handler which gets invoked when the process
    * terminates.
    *
    * Throws an [UnsupportedError] if the process is
    * non-interactive.
    */
   void set onExit(void callback(int exitCode));
 
   /**
@@ skipping 144 matching lines @@
   /**
    * Contains the system message for the process exception if any.
    */
   final String message;
 
   /**
    * Contains the OS error code for the process exception if any.
    */
   final int errorCode;
 }