1 /*
2  * Copyright (c) 2007, 2013, 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 
26 package com.sun.tools.javap;
27 
28 import java.util.EnumSet;
29 import java.util.HashSet;
30 import java.util.Set;
31 
32 import com.sun.tools.classfile.AccessFlags;
33 
34 /*
35  *  Provides access to javap's options, set via the command line
36  *  or JSR 199 API.
37  *  <p><b>This is NOT part of any supported API.
38  *  If you write code that depends on this, you do so at your own risk.
39  *  This code and its internal interfaces are subject to change or
40  *  deletion without notice.</b>
41  */
42 public class Options {
instance(Context context)43     public static Options instance(Context context) {
44         Options instance = context.get(Options.class);
45         if (instance == null)
46             instance = new Options(context);
47         return instance;
48     }
49 
Options(Context context)50     protected Options(Context context) {
51         context.put(Options.class, this);
52     }
53 
54     /**
55      * Checks access of class, field or method.
56      */
checkAccess(AccessFlags flags)57     public boolean checkAccess(AccessFlags flags){
58 
59         boolean isPublic = flags.is(AccessFlags.ACC_PUBLIC);
60         boolean isProtected = flags.is(AccessFlags.ACC_PROTECTED);
61         boolean isPrivate = flags.is(AccessFlags.ACC_PRIVATE);
62         boolean isPackage = !(isPublic || isProtected || isPrivate);
63 
64         if ((showAccess == AccessFlags.ACC_PUBLIC) && (isProtected || isPrivate || isPackage))
65             return false;
66         else if ((showAccess == AccessFlags.ACC_PROTECTED) && (isPrivate || isPackage))
67             return false;
68         else if ((showAccess == 0) && (isPrivate))
69             return false;
70         else
71             return true;
72     }
73 
74     public boolean help;
75     public boolean verbose;
76     public boolean version;
77     public boolean fullVersion;
78     public boolean showFlags;
79     public boolean showLineAndLocalVariableTables;
80     public int showAccess;
81     public Set<String> accessOptions = new HashSet<String>();
82     public Set<InstructionDetailWriter.Kind> details = EnumSet.noneOf(InstructionDetailWriter.Kind.class);
83     public boolean showDisassembled;
84     public boolean showDescriptors;
85     public boolean showAllAttrs;
86     public boolean showConstants;
87     public boolean sysInfo;
88     public boolean showInnerClasses;
89     public int indentWidth = 2;   // #spaces per indentWidth level; must be > 0
90     public int tabColumn = 40;    // column number for comments; must be > 0
91 }
92