001    /*
002     * Copyright 2003-2006 Sun Microsystems, Inc.  All Rights Reserved.
003     * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004     *
005     * This code is free software; you can redistribute it and/or modify it
006     * under the terms of the GNU General Public License version 2 only, as
007     * published by the Free Software Foundation.  Sun designates this
008     * particular file as subject to the "Classpath" exception as provided
009     * by Sun in the LICENSE file that accompanied this code.
010     *
011     * This code is distributed in the hope that it will be useful, but WITHOUT
012     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013     * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014     * version 2 for more details (a copy is included in the LICENSE file that
015     * accompanied this code).
016     *
017     * You should have received a copy of the GNU General Public License version
018     * 2 along with this work; if not, write to the Free Software Foundation,
019     * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020     *
021     * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022     * CA 95054 USA or visit www.sun.com if you need additional information or
023     * have any questions.
024     */
025    
026    package com.sun.tools.javac.util;
027    
028    import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
029    
030    /**
031     * An interface to support optional warnings, needed for support of
032     * unchecked conversions and unchecked casts.
033     *
034     * <p>Nothing described in this source file is part of any supported
035     * API.  If you write code that depends on this, you do so at your own
036     * risk.  This code and its internal interfaces are subject to change
037     * or deletion without notice.
038     */
039    public class Warner {
040        public static final Warner noWarnings = new Warner();
041    
042        private DiagnosticPosition pos = null;
043        public boolean warned = false;
044        public boolean unchecked = false;
045    
046        public DiagnosticPosition pos() {
047            return pos;
048        }
049    
050        public void warnUnchecked() {
051            warned = true;
052            unchecked = true;
053        }
054        public void silentUnchecked() {
055            unchecked = true;
056        }
057    
058        public Warner(DiagnosticPosition pos) {
059            this.pos = pos;
060        }
061    
062        public Warner() {
063            this(null);
064        }
065    }