/*

 * Copyright (c) 1999, 2010, 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/ciExceptionHandler.hpp"

#include "ci/ciUtilities.hpp"

// ciExceptionHandler

//

// This class represents an exception handler for a method.

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

// ciExceptionHandler::catch_klass

//

// Get the exception klass that this handler catches.

ciInstanceKlass* ciExceptionHandler::catch_klass() {

  VM_ENTRY_MARK;

  assert(!is_catch_all(), "bad index");

  if (_catch_klass == NULL) {

    bool will_link;

    assert(_loading_klass->get_instanceKlass()->is_linked(), "must be linked before accessing constant pool");

    constantPoolHandle cpool(_loading_klass->get_instanceKlass()->constants());

    ciKlass* k = CURRENT_ENV->get_klass_by_index(cpool,

                                                 _catch_klass_index,

                                                 will_link,

                                                 _loading_klass);

    if (!will_link && k->is_loaded()) {

      GUARDED_VM_ENTRY(

        k = CURRENT_ENV->get_unloaded_klass(_loading_klass, k->name());

      )

    }

    _catch_klass = k->as_instance_klass();

  }

  return _catch_klass;

}

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

// ciExceptionHandler::print()

void ciExceptionHandler::print() {

  tty->print("<ciExceptionHandler start=%d limit=%d"

             " handler_bci=%d ex_klass_index=%d",

             start(), limit(), handler_bci(), catch_klass_index());

  if (_catch_klass != NULL) {

    tty->print(" ex_klass=");

    _catch_klass->print();

  }

  tty->print(">");

}