001///////////////////////////////////////////////////////////////////////////////////////////////
002// checkstyle: Checks Java source code and other text files for adherence to a set of rules.
003// Copyright (C) 2001-2025 the original author or authors.
004//
005// This library is free software; you can redistribute it and/or
006// modify it under the terms of the GNU Lesser General Public
007// License as published by the Free Software Foundation; either
008// version 2.1 of the License, or (at your option) any later version.
009//
010// This library is distributed in the hope that it will be useful,
011// but WITHOUT ANY WARRANTY; without even the implied warranty of
012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013// Lesser General Public License for more details.
014//
015// You should have received a copy of the GNU Lesser General Public
016// License along with this library; if not, write to the Free Software
017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
018///////////////////////////////////////////////////////////////////////////////////////////////
019
020package com.puppycrawl.tools.checkstyle.grammar;
021
022/**
023 * This interface is used to be notified by parser about comments
024 * in the parsed code.
025 *
026 * @noinspection ClassOnlyUsedInOnePackage
027 * @noinspectionreason ClassOnlyUsedInOnePackage - we restrict all parsing to a single package
028 */
029public interface CommentListener {
030
031    /**
032     * Report the location of a single-line comment that extends from the
033     * given point to the end of the line. The type of comment is identified
034     * by a String whose value depends on the language being parsed, but would
035     * typically be the delimiter for the comment.
036     *
037     * @param type an identifier for what type of comment it is.
038     * @param startLineNo the starting line number
039     * @param startColNo the starting column number
040     */
041    void reportSingleLineComment(String type,
042                                 int startLineNo, int startColNo);
043
044    /**
045     * Report the location of a block comment that can span multiple lines.
046     * The type of comment is identified by a String whose value depends on
047     * the language being parsed, but would typically be the delimiter for the
048     * comment.
049     *
050     * @param type an identifier for what type of comment it is.
051     * @param startLineNo the starting line number
052     * @param startColNo the starting column number
053     * @param endLineNo the ending line number
054     * @param endColNo the ending column number
055     */
056    void reportBlockComment(String type,
057                            int startLineNo, int startColNo,
058                            int endLineNo, int endColNo);
059
060}