Rotating spheres sample

samples/android/src/org/dartlang/Dart.java

+// 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.
+
+package org.dartlang;
+
+/**
+ * A static class that wraps access to the Dart VM shared library.
+ * For expedience we pass the following types as Java primitives
+ *
+ * Dart_Handle <-> int. (It's a pointer.)
+ * Dart_Isolate <-> int. (It's a pointer.)
+ *
+ */
+public class Dart {
+  static {
+    System.loadLibrary("dart_so");
+  }
+  /** Start Dart runtime.
+   * @return main isolate, or 0 if there was an error.
+   */
+  public static native int dartStart(String[] args);
+  public static native int dartFinish(int main_isolate);
+
+  public static native boolean IsError(int handle);
+  public static native boolean IsApiError(int handle);
+  public static native boolean IsUnhandledExceptionError(int handle);
+  public static native boolean IsCompilationError(int handle);
+  public static native boolean IsFatalError(int handle);
+  public static native String GetError(int handle);
+  public static native boolean ErrorHasException(int handle);
+  public static native int ErrorGetException(int handle);
+  public static native int ErrorGetStacktrace(int handle);
+  public static native int NewApiError(String message);
+
+  public static native void EnterScope();
+  public static native void ExitScope();
+  public static native void ShutdownIsolate();
+
+  public static native int CurrentIsolate();
+  public static native void EnterIsolate(int isolate);
+  public static native void ExitIsolate();
+
+  public static native int RootLibrary();
+  public static native int LoadLibrary(int url, int source);
+  public static native int LoadSource(int library, int url, int source);
+
+  public static native int New(int clazz, int constructor_name, int[] arguments);
+  public static native int Invoke(int target, int name, int[] arguments);
+  public static native int GetField(int container, int name);
+  public static native int SetField(int container, int name, int value);
+
+  public static native int ToString(int object);
+  public static native String StringToJavaString(int str);
+
+  public static native boolean IdentityEquals(int obj1, int obj2);
+
+  public static native int RunLoop();
+
+  public static native int Null();
+  public static native boolean IsNull(int handle);
+
+  public static native int NewString(String string);
+  public static native int NewInteger(long value);
+  public static native int NewBoolean(boolean value);
+  public static native int NewDouble(double value);
+  public static native int NewList(int length);
+  public static native int ListLength(int list);
+  public static native int ListGetAt(int list, int index);
+  public static native int ListSetAt(int list, int index, int value);
+}