Implementation of Platform class that exposes information about the machine and the OS.

runtime/bin/platform_impl.dart

+// Copyright (c) 2011, 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.
+
+class _Platform implements Platform {
+  _Platform();
+
+  static int _numberOfProcessors() native "Platform_NumberOfProcessors";
+  static String _pathSeparator() native "Platform_PathSeparator";
+  static String _operatingSystem() native "Platform_OperatingSystem";
+
+  int numberOfProcessors() {
+    return _numberOfProcessors();
+  }
+
+  String pathSeparator() {
+    return _pathSeparator();
+  }
+
+  String operatingSystem() {
+    return _operatingSystem();
+  }
+}