Warner.java revision 2571:10fc81ac75b4
1/* 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package com.sun.tools.javac.util; 27 28import com.sun.tools.javac.code.Lint.LintCategory; 29import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition; 30import java.util.EnumSet; 31 32/** 33 * An interface to support optional warnings, needed for support of 34 * unchecked conversions and unchecked casts. 35 * 36 * <p><b>This is NOT part of any supported API. 37 * If you write code that depends on this, you do so at your own risk. 38 * This code and its internal interfaces are subject to change or 39 * deletion without notice.</b> 40 */ 41public class Warner { 42 43 private DiagnosticPosition pos = null; 44 protected boolean warned = false; 45 private EnumSet<LintCategory> nonSilentLintSet = EnumSet.noneOf(LintCategory.class); 46 private EnumSet<LintCategory> silentLintSet = EnumSet.noneOf(LintCategory.class); 47 48 public DiagnosticPosition pos() { 49 return pos; 50 } 51 52 public void warn(LintCategory lint) { 53 nonSilentLintSet.add(lint); 54 } 55 56 public void silentWarn(LintCategory lint) { 57 silentLintSet.add(lint); 58 } 59 60 public Warner(DiagnosticPosition pos) { 61 this.pos = pos; 62 } 63 64 public boolean hasSilentLint(LintCategory lint) { 65 return silentLintSet.contains(lint); 66 } 67 68 public boolean hasNonSilentLint(LintCategory lint) { 69 return nonSilentLintSet.contains(lint); 70 } 71 72 public boolean hasLint(LintCategory lint) { 73 return hasSilentLint(lint) || 74 hasNonSilentLint(lint); 75 } 76 77 public void clear() { 78 nonSilentLintSet.clear(); 79 silentLintSet.clear(); 80 this.warned = false; 81 } 82 83 public Warner() { 84 this(null); 85 } 86} 87