/*

 * Copyright (c) 1999, 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.

 *

 */

#include "precompiled.hpp"

#include "ci/ciArrayKlass.hpp"

#include "ci/ciObjArrayKlass.hpp"

#include "ci/ciTypeArrayKlass.hpp"

#include "ci/ciUtilities.hpp"

// ciArrayKlass

//

// This class represents a Klass* in the HotSpot virtual machine

// ------------------------------------------------------------------

// ciArrayKlass::ciArrayKlass

//

// Loaded array klass.

ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) {

  assert(get_Klass()->oop_is_array(), "wrong type");

}

// ------------------------------------------------------------------

// ciArrayKlass::ciArrayKlass

//

// Unloaded array klass.

ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, BasicType bt)

  : ciKlass(name, bt) {

  _dimension = dimension;

}

// ------------------------------------------------------------------

// ciArrayKlass::element_type

//

// What type is obtained when this array is indexed once?

ciType* ciArrayKlass::element_type() {

  if (is_type_array_klass()) {

    return ciType::make(as_type_array_klass()->element_type());

  } else {

    return as_obj_array_klass()->element_klass()->as_klass();

  }

}

// ------------------------------------------------------------------

// ciArrayKlass::base_element_type

//

// What type is obtained when this array is indexed as many times as possible?

ciType* ciArrayKlass::base_element_type() {

  if (is_type_array_klass()) {

    return ciType::make(as_type_array_klass()->element_type());

  } else {

    ciKlass* ek = as_obj_array_klass()->base_element_klass();

    if (ek->is_type_array_klass()) {

      return ciType::make(ek->as_type_array_klass()->element_type());

    }

    return ek;

  }

}

// ------------------------------------------------------------------

// ciArrayKlass::is_leaf_type

bool ciArrayKlass::is_leaf_type() {

  if (is_type_array_klass()) {

    return true;

  } else {

    return as_obj_array_klass()->base_element_klass()->is_leaf_type();

  }

}

// ------------------------------------------------------------------

// ciArrayKlass::base_element_type

//

// What type is obtained when this array is indexed as many times as possible?

ciArrayKlass* ciArrayKlass::make(ciType* element_type) {

  if (element_type->is_primitive_type()) {

    return ciTypeArrayKlass::make(element_type->basic_type());

  } else {

    return ciObjArrayKlass::make(element_type->as_klass());

  }

}