/*

 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#ifndef SHARE_JVMCI_JVMCIOBJECT_HPP

#define SHARE_JVMCI_JVMCIOBJECT_HPP

#include "jni.h"

#include "utilities/debug.hpp"

class JVMCIArray;

class JVMCIPrimitiveArray;

class JVMCIObjectArray;

class JVMCIObject {

 private:

  jobject _object;

  bool _is_hotspot;

 public:

  JVMCIObject(): _object(NULL), _is_hotspot(false) {}

  JVMCIObject(jobject o, bool is_hotspot): _object(o), _is_hotspot(is_hotspot) { }

  static JVMCIObject create(jobject o, bool is_hotspot) { JVMCIObject r(o, is_hotspot); return r; }

  jobject as_jobject() { return _object; }

  jobject as_jweak()   { return (jweak) _object; }

  jstring as_jstring() { return (jstring) _object; }

  bool is_hotspot() { return _is_hotspot; }

  bool is_null() const { return _object == NULL; }

  bool is_non_null() const { return _object != NULL; }

  operator JVMCIArray();

  operator JVMCIPrimitiveArray();

  operator JVMCIObjectArray();

};

class JVMCIArray : public JVMCIObject {

 public:

  JVMCIArray() {}

  JVMCIArray(jobject o, bool is_hotspot): JVMCIObject(o, is_hotspot) {}

  jarray as_jobject() { return (jarray) JVMCIObject::as_jobject(); }

};

class JVMCIObjectArray : public JVMCIArray {

 public:

  JVMCIObjectArray() {}

  JVMCIObjectArray(void* v): JVMCIArray() { assert(v == NULL, "must be NULL"); }

  JVMCIObjectArray(jobject o, bool is_hotspot): JVMCIArray(o, is_hotspot) {}

  jobjectArray as_jobject() { return (jobjectArray) JVMCIArray::as_jobject(); }

};

class JVMCIPrimitiveArray : public JVMCIArray {

 public:

  JVMCIPrimitiveArray() {}

  JVMCIPrimitiveArray(void* v): JVMCIArray() { assert(v == NULL, "must be NULL"); }

  JVMCIPrimitiveArray(jobject o, bool is_hotspot): JVMCIArray(o, is_hotspot) {}

  jbooleanArray as_jbooleanArray() { return (jbooleanArray) as_jobject(); }

  jbyteArray    as_jbyteArray()    { return (jbyteArray) as_jobject();    }

  jcharArray    as_jcharArray()    { return (jcharArray) as_jobject();    }

  jshortArray   as_jshortArray()   { return (jshortArray) as_jobject();   }

  jintArray     as_jintArray()     { return (jintArray) as_jobject();     }

  jfloatArray   as_jfloatArray()   { return (jfloatArray) as_jobject();   }

  jlongArray    as_jlongArray()    { return (jlongArray) as_jobject();    }

  jdoubleArray  as_jdoubleArray()  { return (jdoubleArray) as_jobject();  }

};

inline JVMCIObject::operator JVMCIArray() { return JVMCIArray(_object, _is_hotspot); }

inline JVMCIObject::operator JVMCIPrimitiveArray() { return JVMCIPrimitiveArray(_object, _is_hotspot); }

inline JVMCIObject::operator JVMCIObjectArray() { return JVMCIObjectArray(_object, _is_hotspot); }

#endif // SHARE_JVMCI_JVMCIOBJECT_HPP