Source Code Cross Referenced for Mod.java in  » Scripting » jacl » org » codehaus » janino » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Scripting » jacl » org.codehaus.janino 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Janino - An embedded Java[TM] compiler
003:         *
004:         * Copyright (c) 2006, Arno Unkrig
005:         * All rights reserved.
006:         *
007:         * Redistribution and use in source and binary forms, with or without
008:         * modification, are permitted provided that the following conditions
009:         * are met:
010:         *
011:         *    1. Redistributions of source code must retain the above copyright
012:         *       notice, this list of conditions and the following disclaimer.
013:         *    2. Redistributions in binary form must reproduce the above
014:         *       copyright notice, this list of conditions and the following
015:         *       disclaimer in the documentation and/or other materials
016:         *       provided with the distribution.
017:         *    3. The name of the author may not be used to endorse or promote
018:         *       products derived from this software without specific prior
019:         *       written permission.
020:         *
021:         * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
022:         * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
023:         * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
024:         * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
025:         * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
026:         * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
027:         * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
028:         * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
029:         * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
030:         * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
031:         * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
032:         */
033:
034:        package org.codehaus.janino;
035:
036:        /**
037:         * This class defines constants and convenience methods for the handling of
038:         * modifiers as defined by the JVM.
039:         */
040:        public class Mod {
041:            private Mod() {
042:            } // Don't instantiate me!
043:
044:            public final static short NONE = 0x0000;
045:
046:            public final static short PUBLIC = 0x0001;
047:            public final static short PRIVATE = 0x0002;
048:            public final static short PROTECTED = 0x0004;
049:            public final static short PACKAGE = 0x0000;
050:            public final static short PPP = 0x0007;
051:
052:            public static boolean isPublicAccess(short sh) {
053:                return (sh & Mod.PPP) == Mod.PUBLIC;
054:            }
055:
056:            public static boolean isPrivateAccess(short sh) {
057:                return (sh & Mod.PPP) == Mod.PRIVATE;
058:            }
059:
060:            public static boolean isProtectedAccess(short sh) {
061:                return (sh & Mod.PPP) == Mod.PROTECTED;
062:            }
063:
064:            public static boolean isPackageAccess(short sh) {
065:                return (sh & Mod.PPP) == Mod.PACKAGE;
066:            }
067:
068:            public static short changeAccess(short sh, short newAccess) {
069:                return (short) ((sh & ~Mod.PPP) | newAccess);
070:            }
071:
072:            public final static short STATIC = 0x0008;
073:            public final static short FINAL = 0x0010;
074:            public final static short SUPER = 0x0020;
075:            public final static short SYNCHRONIZED = 0x0020;
076:            public final static short VOLATILE = 0x0040;
077:            public final static short TRANSIENT = 0x0080;
078:            public final static short NATIVE = 0x0100;
079:            public final static short INTERFACE = 0x0200;
080:            public final static short ABSTRACT = 0x0400;
081:            public final static short STRICTFP = 0x0800;
082:
083:            // Poorly documented JDK 1.5 modifiers:
084:            public final static short SYNTHETIC = 0x1000;
085:            public final static short ANNOTATION = 0x2000;
086:            public final static short ENUM = 0x4000;
087:
088:            public static String shortToString(short sh) {
089:                String res = "";
090:                for (int i = 0; i < Mod.mappings.length; i += 2) {
091:                    if ((sh & ((Short) Mod.mappings[i + 1]).shortValue()) == 0)
092:                        continue;
093:                    if (res.length() > 0)
094:                        res += ' ';
095:                    res += (String) Mod.mappings[i];
096:                }
097:                return res;
098:            }
099:
100:            private final static Object[] mappings = { "public",
101:                    new Short(Mod.PUBLIC), "private", new Short(Mod.PRIVATE),
102:                    "protected",
103:                    new Short(Mod.PROTECTED),
104:                    "static",
105:                    new Short(Mod.STATIC),
106:                    "final",
107:                    new Short(Mod.FINAL),
108:                    //      "super",        new Short(Mod.SUPER),
109:                    "synchronized", new Short(Mod.SYNCHRONIZED), "volatile",
110:                    new Short(Mod.VOLATILE), "transient",
111:                    new Short(Mod.TRANSIENT), "native", new Short(Mod.NATIVE),
112:                    "interface", new Short(Mod.INTERFACE), "abstract",
113:                    new Short(Mod.ABSTRACT), "strictfp",
114:                    new Short(Mod.STRICTFP), };
115:        }
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