/*

 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.tools.javap;

import java.util.EnumSet;

import java.util.HashSet;

import java.util.Set;

import com.sun.tools.classfile.AccessFlags;

/*

 *  Provides access to javap's options, set via the command line

 *  or JSR 199 API.

 *  <p><b>This is NOT part of any supported API.

 *  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 Options {

    public static Options instance(Context context) {

        Options instance = context.get(Options.class);

        if (instance == null)

            instance = new Options(context);

        return instance;

    }

    protected Options(Context context) {

        context.put(Options.class, this);

    }

    /**

     * Checks access of class, field or method.

     */

    public boolean checkAccess(AccessFlags flags){

        boolean isPublic = flags.is(AccessFlags.ACC_PUBLIC);

        boolean isProtected = flags.is(AccessFlags.ACC_PROTECTED);

        boolean isPrivate = flags.is(AccessFlags.ACC_PRIVATE);

        boolean isPackage = !(isPublic || isProtected || isPrivate);

        if ((showAccess == AccessFlags.ACC_PUBLIC) && (isProtected || isPrivate || isPackage))

            return false;

        else if ((showAccess == AccessFlags.ACC_PROTECTED) && (isPrivate || isPackage))

            return false;

        else if ((showAccess == 0) && (isPrivate))

            return false;

        else

            return true;

    }

    public boolean help;

    public boolean verbose;

    public boolean version;

    public boolean fullVersion;

    public boolean showFlags;

    public boolean showLineAndLocalVariableTables;

    public int showAccess;

    public Set<String> accessOptions = new HashSet<>();

    public Set<InstructionDetailWriter.Kind> details = EnumSet.noneOf(InstructionDetailWriter.Kind.class);

    public boolean showDisassembled;

    public boolean showDescriptors;

    public boolean showAllAttrs;

    public boolean showConstants;

    public boolean sysInfo;

    public boolean showInnerClasses;

    public int indentWidth = 2;   // #spaces per indentWidth level; must be > 0

    public int tabColumn = 40;    // column number for comments; must be > 0

    public String moduleName;

}