/*******************************************************************************
 * Copyright (c) 2015 Jeff Martin.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public
 * License v3.0 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 * <p>
 * Contributors:
 * Jeff Martin - initial API and implementation
 ******************************************************************************/
package cuchaz.enigma.bytecode;

import javassist.CtBehavior;
import javassist.CtClass;
import javassist.CtField;
import javassist.bytecode.AccessFlag;
import javassist.bytecode.InnerClassesAttribute;


public class ClassPublifier {

    public static CtClass publify(CtClass c) {

        // publify all the fields
        for (CtField field : c.getDeclaredFields()) {
            field.setModifiers(publify(field.getModifiers()));
        }

        // publify all the methods and constructors
        for (CtBehavior behavior : c.getDeclaredBehaviors()) {
            behavior.setModifiers(publify(behavior.getModifiers()));
        }

        // publify all the inner classes
        InnerClassesAttribute attr = (InnerClassesAttribute) c.getClassFile().getAttribute(InnerClassesAttribute.tag);
        if (attr != null) {
            for (int i = 0; i < attr.tableLength(); i++) {
                attr.setAccessFlags(i, publify(attr.accessFlags(i)));
            }
        }

        return c;
    }

    private static int publify(int flags) {
        if (AccessFlag.isPrivate(flags) || AccessFlag.isProtected(flags)) {
            flags = AccessFlag.setPublic(flags);
        }
        return flags;
    }
}