/*

 * Copyright (c) 2012, 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_CIMETHODTYPE_HPP

#define SHARE_VM_CI_CIMETHODTYPE_HPP

#include "ci/ciInstance.hpp"

#include "ci/ciUtilities.hpp"

#include "classfile/javaClasses.hpp"

// ciMethodType

//

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

class ciMethodType : public ciInstance {

private:

  ciType* class_to_citype(oop klass_oop) const {

    if (java_lang_Class::is_primitive(klass_oop)) {

      BasicType bt = java_lang_Class::primitive_type(klass_oop);

      return ciType::make(bt);

    } else {

      Klass* k = java_lang_Class::as_Klass(klass_oop);

      return CURRENT_ENV->get_klass(k);

    }

  }

public:

  ciMethodType(instanceHandle h_i) : ciInstance(h_i) {}

  // What kind of ciObject is this?

  bool is_method_type() const { return true; }

  ciType* rtype() const {

    GUARDED_VM_ENTRY(

      oop rtype = java_lang_invoke_MethodType::rtype(get_oop());

      return class_to_citype(rtype);

    )

  }

  int ptype_count() const {

    GUARDED_VM_ENTRY(return java_lang_invoke_MethodType::ptype_count(get_oop());)

  }

  int ptype_slot_count() const {

    GUARDED_VM_ENTRY(return java_lang_invoke_MethodType::ptype_slot_count(get_oop());)

  }

  ciType* ptype_at(int index) const {

    GUARDED_VM_ENTRY(

      oop ptype = java_lang_invoke_MethodType::ptype(get_oop(), index);

      return class_to_citype(ptype);

    )

  }

};

#endif // SHARE_VM_CI_CIMETHODTYPE_HPP