jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/classfile/AccessFlags.java@7708bd6d800d (annotated)

src/share/classes/com/sun/tools/classfile/AccessFlags.java@7708bd6d800d (annotated)

src/share/classes/com/sun/tools/classfile/AccessFlags.java

Tue, 03 Jun 2008 13:26:47 -0700

author: jjg
date: Tue, 03 Jun 2008 13:26:47 -0700
changeset 46: 7708bd6d800d
child 54: eaf608c64fec
permissions: -rw-r--r--

4075303: Use javap to enquire aboput a specific inner class
4348375: Javap is not internationalized
4459541: "javap -l" shows line numbers as signed short; they should be unsigned
4501660: change diagnostic of -help as 'print this help message and exit'
4776241: unused source file in javap...
4870651: javap should recognize generics, varargs, enum
4876942: javap invoked without args does not print help screen
4880663: javap could output whitespace between class name and opening brace
4975569: javap doesn't print new flag bits
6271787: javap dumps LocalVariableTypeTable attribute in hex, needs to print a table
6305779: javap: support annotations
6439940: Clean up javap implementation
6469569: wrong check of searchpath in JavapEnvironment
6474890: javap does not open .zip files in -classpath
6587786: Javap throws error : "ERROR:Could not find <classname>" for JRE classes
6622215: javap ignores certain relevant access flags
6622216: javap names some attributes incorrectly
6622232: javap gets whitespace confused
6622260: javap prints negative bytes incorrectly in hex
Reviewed-by: ksrini

 /*
  * Copyright 2007 Sun Microsystems, Inc.  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.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */
 package com.sun.tools.classfile;
 import java.io.IOException;
 import java.util.LinkedHashSet;
 import java.util.Set;
 /**
  * See JVMS3, sections 4.2, 4.6, 4.7.
  *
  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
  *  you write code that depends on this, you do so at your own risk.
  *  This code and its internal interfaces are subject to change or
  *  deletion without notice.</b>
  */
 public class AccessFlags {
     public static final int ACC_PUBLIC        = 0x0001; // class, inner, field, method
     public static final int ACC_PRIVATE       = 0x0002; //        inner, field, method
     public static final int ACC_PROTECTED     = 0x0004; //        inner, field, method
     public static final int ACC_STATIC        = 0x0008; //        inner, field, method
     public static final int ACC_FINAL         = 0x0010; // class, inner, field, method
     public static final int ACC_SUPER         = 0x0020; // class
     public static final int ACC_SYNCHRONIZED  = 0x0020; //                      method
     public static final int ACC_VOLATILE      = 0x0040; //               field
     public static final int ACC_BRIDGE        = 0x0040; //                      method
     public static final int ACC_TRANSIENT     = 0x0080; //               field
     public static final int ACC_VARARGS       = 0x0080; //                      method
     public static final int ACC_NATIVE        = 0x0100; //                      method
     public static final int ACC_INTERFACE     = 0x0200; // class, inner
     public static final int ACC_ABSTRACT      = 0x0400; // class, inner,        method
     public static final int ACC_STRICT        = 0x0800; //                      method
     public static final int ACC_SYNTHETIC     = 0x1000; // class, inner, field, method
     public static final int ACC_ANNOTATION    = 0x2000; // class, inner
     public static final int ACC_ENUM          = 0x4000; // class, inner, field
     public static final int ACC_MODULE        = 0x8000; // class, inner, field, method
     private static enum Type { Class, InnerClass, Field, Method};
     AccessFlags(ClassReader cr) throws IOException {
         this(cr.readUnsignedShort());
     }
     public AccessFlags(int flags) {
         this.flags = flags;
     }
     public AccessFlags ignore(int mask) {
         return new AccessFlags(flags & ~mask);
     }
     public boolean is(int mask) {
         return (flags & mask) != 0;
     }
     private static final int[] classModifiers = {
         ACC_PUBLIC, ACC_FINAL, ACC_ABSTRACT, ACC_MODULE
     };
     private static final int[] classFlags = {
         ACC_PUBLIC, ACC_FINAL, ACC_SUPER, ACC_INTERFACE, ACC_ABSTRACT,
         ACC_SYNTHETIC, ACC_ANNOTATION, ACC_ENUM, ACC_MODULE
     };
     public Set<String> getClassModifiers() {
         int f = ((flags & ACC_INTERFACE) != 0 ? flags & ~ACC_ABSTRACT : flags);
         return getModifiers(f, classModifiers, Type.Class);
     }
     public Set<String> getClassFlags() {
         return getFlags(classFlags, Type.Class);
     }
     private static final int[] innerClassModifiers = {
         ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
         ACC_ABSTRACT, ACC_MODULE
     };
     private static final int[] innerClassFlags = {
         ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL, ACC_SUPER,
         ACC_INTERFACE, ACC_ABSTRACT, ACC_SYNTHETIC, ACC_ANNOTATION, ACC_ENUM, ACC_MODULE
     };
     public Set<String> getInnerClassModifiers() {
         int f = ((flags & ACC_INTERFACE) != 0 ? flags & ~ACC_ABSTRACT : flags);
         return getModifiers(f, innerClassModifiers, Type.InnerClass);
     }
     public Set<String> getInnerClassFlags() {
         return getFlags(innerClassFlags, Type.InnerClass);
     }
     private static final int[] fieldModifiers = {
         ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
         ACC_VOLATILE, ACC_TRANSIENT, ACC_MODULE
     };
     private static final int[] fieldFlags = {
         ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
         ACC_VOLATILE, ACC_TRANSIENT, ACC_SYNTHETIC, ACC_ENUM, ACC_MODULE
     };
     public Set<String> getFieldModifiers() {
         return getModifiers(fieldModifiers, Type.Field);
     }
     public Set<String> getFieldFlags() {
         return getFlags(fieldFlags, Type.Field);
     }
     private static final int[] methodModifiers = {
         ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
         ACC_SYNCHRONIZED, ACC_NATIVE, ACC_ABSTRACT, ACC_STRICT, ACC_MODULE
     };
     private static final int[] methodFlags = {
         ACC_PUBLIC, ACC_PRIVATE, ACC_PROTECTED, ACC_STATIC, ACC_FINAL,
         ACC_SYNCHRONIZED, ACC_BRIDGE, ACC_VARARGS, ACC_NATIVE, ACC_ABSTRACT,
         ACC_STRICT, ACC_SYNTHETIC, ACC_MODULE
     };
     public Set<String> getMethodModifiers() {
         return getModifiers(methodModifiers, Type.Method);
     }
     public Set<String> getMethodFlags() {
         return getFlags(methodFlags, Type.Method);
     }
     private Set<String> getModifiers(int[] modifierFlags, Type t) {
         return getModifiers(flags, modifierFlags, t);
     }
     private static Set<String> getModifiers(int flags, int[] modifierFlags, Type t) {
         Set<String> s = new LinkedHashSet<String>();
         for (int m: modifierFlags) {
             if ((flags & m) != 0)
                 s.add(flagToModifier(m, t));
         }
         return s;
     }
     private Set<String> getFlags(int[] expectedFlags, Type t) {
         Set<String> s = new LinkedHashSet<String>();
         int f = flags;
         for (int e: expectedFlags) {
             if ((f & e) != 0) {
                 s.add(flagToName(e, t));
                 f = f & ~e;
             }
         }
         while (f != 0) {
             int bit = Integer.highestOneBit(f);
             s.add("0x" + Integer.toHexString(bit));
             f = f & ~bit;
         }
         return s;
     }
     private static String flagToModifier(int flag, Type t) {
         switch (flag) {
             case ACC_PUBLIC:
                 return "public";
             case ACC_PRIVATE:
                 return "private";
             case ACC_PROTECTED:
                 return "protected";
             case ACC_STATIC:
                 return "static";
             case ACC_FINAL:
                 return "final";
             case ACC_SYNCHRONIZED:
                 return "synchronized";
             case 0x80:
                 return (t == Type.Field ? "transient" : null);
             case ACC_VOLATILE:
                 return "volatile";
             case ACC_NATIVE:
                 return "native";
             case ACC_ABSTRACT:
                 return "abstract";
             case ACC_STRICT:
                 return "strictfp";
             case ACC_MODULE:
                 return "module";
             default:
                 return null;
         }
     }
     private static String flagToName(int flag, Type t) {
         switch (flag) {
         case ACC_PUBLIC:
             return "ACC_PUBLIC";
         case ACC_PRIVATE:
             return "ACC_PRIVATE";
         case ACC_PROTECTED:
             return "ACC_PROTECTED";
         case ACC_STATIC:
             return "ACC_STATIC";
         case ACC_FINAL:
             return "ACC_FINAL";
         case 0x20:
             return (t == Type.Class ? "ACC_SUPER" : "ACC_SYNCHRONIZED");
         case 0x40:
             return (t == Type.Field ? "ACC_VOLATILE" : "ACC_BRIDGE");
         case 0x80:
             return (t == Type.Field ? "ACC_TRANSIENT" : "ACC_VARARGS");
         case ACC_NATIVE:
             return "ACC_NATIVE";
         case ACC_INTERFACE:
             return "ACC_INTERFACE";
         case ACC_ABSTRACT:
             return "ACC_ABSTRACT";
         case ACC_STRICT:
             return "ACC_STRICT";
         case ACC_SYNTHETIC:
             return "ACC_SYNTHETIC";
         case ACC_ANNOTATION:
             return "ACC_ANNOTATION";
         case ACC_ENUM:
             return "ACC_ENUM";
         case ACC_MODULE:
             return "ACC_MODULE";
         default:
             return null;
         }
     }
     final int flags;
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/classfile/AccessFlags.java@7708bd6d800d (annotated)

src/share/classes/com/sun/tools/classfile/AccessFlags.java