/*

 * Copyright (c) 2009, 2011, 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_VM_CI_CIMETHODHANDLE_HPP

#define SHARE_VM_CI_CIMETHODHANDLE_HPP

#include "ci/ciCallProfile.hpp"

#include "ci/ciInstance.hpp"

#include "prims/methodHandles.hpp"

// ciMethodHandle

//

// The class represents a java.lang.invoke.MethodHandle object.

class ciMethodHandle : public ciInstance {

private:

  ciMethod*      _callee;

  ciMethod*      _caller;

  ciCallProfile  _profile;

  ciMethod*      _method_handle_adapter;

  ciMethod*      _invokedynamic_adapter;

  // Return an adapter for this MethodHandle.

  ciMethod* get_adapter_impl(bool is_invokedynamic);

  ciMethod* get_adapter(     bool is_invokedynamic);

protected:

public:

  ciMethodHandle(instanceHandle h_i) :

    ciInstance(h_i),

    _callee(NULL),

    _caller(NULL),

    _method_handle_adapter(NULL),

    _invokedynamic_adapter(NULL)

  {}

  // What kind of ciObject is this?

  bool is_method_handle() const { return true; }

  void set_callee(ciMethod* m)                  { _callee  = m;       }

  void set_caller(ciMethod* m)                  { _caller  = m;       }

  void set_call_profile(ciCallProfile profile)  { _profile = profile; }

  // Return an adapter for a MethodHandle call.

  ciMethod* get_method_handle_adapter() {

    if (_method_handle_adapter == NULL) {

      _method_handle_adapter = get_adapter(false);

    }

    return _method_handle_adapter;

  }

  // Return an adapter for an invokedynamic call.

  ciMethod* get_invokedynamic_adapter() {

    if (_invokedynamic_adapter == NULL) {

      _invokedynamic_adapter = get_adapter(true);

    }

    return _invokedynamic_adapter;

  }

};

#endif // SHARE_VM_CI_CIMETHODHANDLE_HPP