/*

 * Copyright (c) 2015, 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.  Oracle designates this

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

 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.jshell;

/**

 * Common interface for all wrappings of snippet source to Java source.

 *

 * @author Robert Field

 */

interface GeneralWrap {

    String wrapped();

    int snippetIndexToWrapIndex(int sni);

    int wrapIndexToSnippetIndex(int wi);

    default int wrapIndexToSnippetIndex(long wi) {

        return wrapIndexToSnippetIndex((int) wi);

    }

    int firstSnippetIndex();

    int lastSnippetIndex();

    int snippetLineToWrapLine(int snline);

    int wrapLineToSnippetLine(int wline);

    int firstSnippetLine();

    int lastSnippetLine();

    default String debugPos(long lpos) {

        int pos = (int) lpos;

        int len = wrapped().length();

        return wrapped().substring(Math.max(0, pos - 10), Math.max(0, Math.min(len, pos)))

                + "###"

                + wrapped().substring(Math.max(0, Math.min(len, pos)), Math.max(0, Math.min(len, pos + 10)));

    }

}