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ProGuardCORE is a free library to read, analyze, modify, and write Java class files.

There is a newer version: 9.1.6

/*
 * ProGuardCORE -- library to process Java bytecode.
 *
 * Copyright (c) 2002-2020 Guardsquare NV
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package proguard.classfile.editor;

import proguard.classfile.*;
import proguard.classfile.attribute.InnerClassesInfo;
import proguard.classfile.attribute.visitor.InnerClassesInfoVisitor;
import proguard.classfile.constant.*;
import proguard.classfile.constant.visitor.ConstantVisitor;
import proguard.classfile.util.*;
import proguard.classfile.visitor.ClassVisitor;

/**
 * This {@link InnerClassesInfoVisitor} fixes the inner class access flags of the inner classes
 * information that it visits.
 *
 * @author Eric Lafortune
 */
public class InnerClassesAccessFixer
    implements InnerClassesInfoVisitor, ConstantVisitor, ClassVisitor {
  private int innerClassAccessFlags;

  // Implementations for InnerClassesInfoVisitor.

  public void visitInnerClassesInfo(Clazz clazz, InnerClassesInfo innerClassesInfo) {
    // The current access flags are the default.
    innerClassAccessFlags = innerClassesInfo.u2innerClassAccessFlags;

    // See if we can find new access flags.
    innerClassesInfo.innerClassConstantAccept(clazz, this);

    // Update the access flags.
    innerClassesInfo.u2innerClassAccessFlags = innerClassAccessFlags;
  }

  // Implementations for ConstantVisitor.

  public void visitAnyConstant(Clazz clazz, Constant constant) {}

  public void visitClassConstant(Clazz clazz, ClassConstant classConstant) {
    classConstant.referencedClassAccept(this);
  }

  // Implementations for ClassVisitor.

  @Override
  public void visitAnyClass(Clazz clazz) {}

  @Override
  public void visitProgramClass(ProgramClass programClass) {
    innerClassAccessFlags =
        AccessUtil.replaceAccessFlags(innerClassAccessFlags, programClass.u2accessFlags);
  }
}