/*

 * 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.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/*

 * The Original Code is HAT. The Initial Developer of the

 * Original Code is Bill Foote, with contributions from others

 */

package com.sun.tools.hat.internal.model;

/**

 *

 * @author      Bill Foote

 */

/**

 * Represents a stack trace, that is, an ordered collection of stack frames.

 */

public class StackTrace {

    private StackFrame[] frames;

    public StackTrace(StackFrame[] frames) {

        this.frames = frames;

    }

    /**

     * @param depth.  The minimum reasonable depth is 1.

     *

     * @return a (possibly new) StackTrace that is limited to depth.

     */

    public StackTrace traceForDepth(int depth) {

        if (depth >= frames.length) {

            return this;

        } else {

            StackFrame[] f = new StackFrame[depth];

            System.arraycopy(frames, 0, f, 0, depth);

            return new StackTrace(f);

        }

    }

    public void resolve(Snapshot snapshot) {

        for (int i = 0; i < frames.length; i++) {

            frames[i].resolve(snapshot);

        }

    }

    public StackFrame[] getFrames() {

        return frames;

    }

}