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• AttributeAdder.java

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proguard.classfile.editor.AttributeAdder Maven / Gradle / Ivy

/*
 * 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 java.util.Arrays;
import proguard.classfile.*;
import proguard.classfile.attribute.*;
import proguard.classfile.attribute.annotation.*;
import proguard.classfile.attribute.preverification.*;
import proguard.classfile.attribute.visitor.AttributeVisitor;

/**
 * This {@link AttributeVisitor} adds all attributes that it visits to the given target class, class
 * member, or attribute.
 *
 * @author Eric Lafortune
 */
public class AttributeAdder implements AttributeVisitor {
  private static final byte[] EMPTY_BYTES = new byte[0];
  private static final int[] EMPTY_INTS = new int[0];
  private static final Attribute[] EMPTY_ATTRIBUTES = new Attribute[0];
  private static final ExceptionInfo[] EMPTY_EXCEPTIONS = new ExceptionInfo[0];
  private static final Annotation[] EMPTY_ANNOTATIONS = new Annotation[0];

  private final ProgramClass targetClass;
  private final ProgramMember targetMember;
  private final CodeAttribute targetCodeAttribute;
  private final boolean replaceAttributes;

  private final ConstantAdder constantAdder;
  private final AttributesEditor attributesEditor;

  /** Creates a new AttributeAdder that will copy attributes into the given target class. */
  public AttributeAdder(ProgramClass targetClass, boolean replaceAttributes) {
    this(targetClass, null, null, replaceAttributes);
  }

  /** Creates a new AttributeAdder that will copy attributes into the given target class member. */
  public AttributeAdder(
      ProgramClass targetClass, ProgramMember targetMember, boolean replaceAttributes) {
    this(targetClass, targetMember, null, replaceAttributes);
  }

  /** Creates a new AttributeAdder that will copy attributes into the given target attribute. */
  public AttributeAdder(
      ProgramClass targetClass,
      ProgramMember targetMember,
      CodeAttribute targetCodeAttribute,
      boolean replaceAttributes) {
    this.targetClass = targetClass;
    this.targetMember = targetMember;
    this.targetCodeAttribute = targetCodeAttribute;
    this.replaceAttributes = replaceAttributes;

    constantAdder = new ConstantAdder(targetClass);
    attributesEditor =
        new AttributesEditor(targetClass, targetMember, targetCodeAttribute, replaceAttributes);
  }

  // Implementations for AttributeVisitor.

  public void visitUnknownAttribute(Clazz clazz, UnknownAttribute unknownAttribute) {
    // Create a copy of the attribute.
    UnknownAttribute newUnknownAttribute =
        new UnknownAttribute(
            constantAdder.addConstant(clazz, unknownAttribute.u2attributeNameIndex),
            unknownAttribute.u4attributeLength,
            unknownAttribute.info);

    newUnknownAttribute.setProcessingFlags(unknownAttribute.getProcessingFlags());

    // Add it to the target class.
    attributesEditor.addAttribute(newUnknownAttribute);
  }

  public void visitSourceFileAttribute(Clazz clazz, SourceFileAttribute sourceFileAttribute) {
    // Create a copy of the attribute.
    SourceFileAttribute newSourceFileAttribute =
        new SourceFileAttribute(
            constantAdder.addConstant(clazz, sourceFileAttribute.u2attributeNameIndex),
            constantAdder.addConstant(clazz, sourceFileAttribute.u2sourceFileIndex));

    newSourceFileAttribute.setProcessingFlags(sourceFileAttribute.getProcessingFlags());

    // Add it to the target class.
    attributesEditor.addAttribute(newSourceFileAttribute);
  }

  public void visitSourceDirAttribute(Clazz clazz, SourceDirAttribute sourceDirAttribute) {
    // Create a copy of the attribute.
    SourceDirAttribute newSourceDirAttribute =
        new SourceDirAttribute(
            constantAdder.addConstant(clazz, sourceDirAttribute.u2attributeNameIndex),
            constantAdder.addConstant(clazz, sourceDirAttribute.u2sourceDirIndex));

    newSourceDirAttribute.setProcessingFlags(sourceDirAttribute.getProcessingFlags());

    // Add it to the target class.
    attributesEditor.addAttribute(newSourceDirAttribute);
  }

  public void visitSourceDebugExtensionAttribute(
      Clazz clazz, SourceDebugExtensionAttribute sourceDebugExtensionAttribute) {
    // Create a copy of the attribute.
    SourceDebugExtensionAttribute newSourceDebugExtensionAttribute =
        new SourceDebugExtensionAttribute(
            constantAdder.addConstant(clazz, sourceDebugExtensionAttribute.u2attributeNameIndex),
            sourceDebugExtensionAttribute.u4attributeLength,
            sourceDebugExtensionAttribute.info);

    newSourceDebugExtensionAttribute.setProcessingFlags(
        sourceDebugExtensionAttribute.getProcessingFlags());

    // Add it to the target class.
    attributesEditor.addAttribute(newSourceDebugExtensionAttribute);
  }

  public void visitInnerClassesAttribute(Clazz clazz, InnerClassesAttribute innerClassesAttribute) {
    // Create a copy of the attribute.
    InnerClassesAttribute newInnerClassesAttribute =
        new InnerClassesAttribute(
            constantAdder.addConstant(clazz, innerClassesAttribute.u2attributeNameIndex), 0, null);

    newInnerClassesAttribute.setProcessingFlags(innerClassesAttribute.getProcessingFlags());

    // Add it to the target class.
    attributesEditor.addAttribute(newInnerClassesAttribute);
  }

  public void visitEnclosingMethodAttribute(
      Clazz clazz, EnclosingMethodAttribute enclosingMethodAttribute) {
    // Create a copy of the attribute.
    EnclosingMethodAttribute newEnclosingMethodAttribute =
        new EnclosingMethodAttribute(
            constantAdder.addConstant(clazz, enclosingMethodAttribute.u2attributeNameIndex),
            constantAdder.addConstant(clazz, enclosingMethodAttribute.u2classIndex),
            enclosingMethodAttribute.u2nameAndTypeIndex == 0
                ? 0
                : constantAdder.addConstant(clazz, enclosingMethodAttribute.u2nameAndTypeIndex));

    newEnclosingMethodAttribute.setProcessingFlags(enclosingMethodAttribute.getProcessingFlags());

    newEnclosingMethodAttribute.referencedClass = enclosingMethodAttribute.referencedClass;
    newEnclosingMethodAttribute.referencedMethod = enclosingMethodAttribute.referencedMethod;

    // Add it to the target class.
    attributesEditor.addAttribute(newEnclosingMethodAttribute);
  }

  public void visitNestHostAttribute(Clazz clazz, NestHostAttribute nestHostAttribute) {
    // Create a copy of the attribute.
    NestHostAttribute newNestHostAttribute =
        new NestHostAttribute(
            constantAdder.addConstant(clazz, nestHostAttribute.u2attributeNameIndex),
            constantAdder.addConstant(clazz, nestHostAttribute.u2hostClassIndex));

    // Add it to the target class.
    attributesEditor.addAttribute(newNestHostAttribute);
  }

  public void visitNestMembersAttribute(Clazz clazz, NestMembersAttribute nestMembersAttribute) {
    // Create a copy of the attribute.
    NestMembersAttribute newNestMembersAttribute =
        new NestMembersAttribute(
            constantAdder.addConstant(clazz, nestMembersAttribute.u2attributeNameIndex),
            0,
            nestMembersAttribute.u2classesCount > 0
                ? new int[nestMembersAttribute.u2classesCount]
                : EMPTY_INTS);

    // Add the nest members.
    nestMembersAttribute.memberClassConstantsAccept(
        targetClass, new NestMemberAdder(targetClass, newNestMembersAttribute));

    // Add it to the target class.
    attributesEditor.addAttribute(newNestMembersAttribute);
  }

  public void visitPermittedSubclassesAttribute(
      Clazz clazz, PermittedSubclassesAttribute permittedSubclassesAttribute) {
    // Create a copy of the attribute.
    PermittedSubclassesAttribute newPermittedSubclassesAttribute =
        new PermittedSubclassesAttribute(
            constantAdder.addConstant(clazz, permittedSubclassesAttribute.u2attributeNameIndex),
            0,
            permittedSubclassesAttribute.u2classesCount > 0
                ? new int[permittedSubclassesAttribute.u2classesCount]
                : EMPTY_INTS);

    // Add the permitted subclasses.
    permittedSubclassesAttribute.permittedSubclassConstantsAccept(
        targetClass, new PermittedSubclassAdder(targetClass, newPermittedSubclassesAttribute));

    // Add it to the target class.
    attributesEditor.addAttribute(newPermittedSubclassesAttribute);
  }

  public void visitDeprecatedAttribute(Clazz clazz, DeprecatedAttribute deprecatedAttribute) {
    // Create a copy of the attribute.
    DeprecatedAttribute newDeprecatedAttribute =
        new DeprecatedAttribute(
            constantAdder.addConstant(clazz, deprecatedAttribute.u2attributeNameIndex));

    newDeprecatedAttribute.setProcessingFlags(deprecatedAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newDeprecatedAttribute);
  }

  public void visitSyntheticAttribute(Clazz clazz, SyntheticAttribute syntheticAttribute) {
    // Create a copy of the attribute.
    SyntheticAttribute newSyntheticAttribute =
        new SyntheticAttribute(
            constantAdder.addConstant(clazz, syntheticAttribute.u2attributeNameIndex));

    newSyntheticAttribute.setProcessingFlags(syntheticAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newSyntheticAttribute);
  }

  public void visitSignatureAttribute(Clazz clazz, SignatureAttribute signatureAttribute) {
    // Create a copy of the attribute.
    SignatureAttribute newSignatureAttribute =
        new SignatureAttribute(
            constantAdder.addConstant(clazz, signatureAttribute.u2attributeNameIndex),
            constantAdder.addConstant(clazz, signatureAttribute.u2signatureIndex));

    newSignatureAttribute.setProcessingFlags(signatureAttribute.getProcessingFlags());

    newSignatureAttribute.referencedClasses = signatureAttribute.referencedClasses;

    // Add it to the target.
    attributesEditor.addAttribute(newSignatureAttribute);
  }

  public void visitConstantValueAttribute(
      Clazz clazz, Field field, ConstantValueAttribute constantValueAttribute) {
    // Create a copy of the attribute.
    ConstantValueAttribute newConstantValueAttribute =
        new ConstantValueAttribute(
            constantAdder.addConstant(clazz, constantValueAttribute.u2attributeNameIndex),
            constantAdder.addConstant(clazz, constantValueAttribute.u2constantValueIndex));

    newConstantValueAttribute.setProcessingFlags(constantValueAttribute.getProcessingFlags());

    // Add it to the target field.
    attributesEditor.addAttribute(newConstantValueAttribute);
  }

  public void visitMethodParametersAttribute(
      Clazz clazz, Method method, MethodParametersAttribute methodParametersAttribute) {
    // Create a new local variable table attribute.
    MethodParametersAttribute newMethodParametersAttribute =
        new MethodParametersAttribute(
            constantAdder.addConstant(clazz, methodParametersAttribute.u2attributeNameIndex),
            methodParametersAttribute.u1parametersCount,
            new ParameterInfo[methodParametersAttribute.u1parametersCount]);

    // Add the local variables.
    methodParametersAttribute.parametersAccept(
        clazz, method, new ParameterInfoAdder(targetClass, newMethodParametersAttribute));

    newMethodParametersAttribute.setProcessingFlags(methodParametersAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newMethodParametersAttribute);
  }

  public void visitExceptionsAttribute(
      Clazz clazz, Method method, ExceptionsAttribute exceptionsAttribute) {
    // Create a new exceptions attribute.
    ExceptionsAttribute newExceptionsAttribute =
        new ExceptionsAttribute(
            constantAdder.addConstant(clazz, exceptionsAttribute.u2attributeNameIndex),
            0,
            exceptionsAttribute.u2exceptionIndexTableLength > 0
                ? new int[exceptionsAttribute.u2exceptionIndexTableLength]
                : EMPTY_INTS);

    // Add the exceptions.
    exceptionsAttribute.exceptionEntriesAccept(
        clazz, new ExceptionAdder(targetClass, newExceptionsAttribute));

    newExceptionsAttribute.setProcessingFlags(exceptionsAttribute.getProcessingFlags());

    // Add it to the target method.
    attributesEditor.addAttribute(newExceptionsAttribute);
  }

  public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute) {
    // Create a new code attribute.
    CodeAttribute newCodeAttribute =
        new CodeAttribute(
            constantAdder.addConstant(clazz, codeAttribute.u2attributeNameIndex),
            codeAttribute.u2maxStack,
            codeAttribute.u2maxLocals,
            0,
            EMPTY_BYTES,
            0,
            codeAttribute.u2exceptionTableLength > 0
                ? new ExceptionInfo[codeAttribute.u2exceptionTableLength]
                : EMPTY_EXCEPTIONS,
            0,
            codeAttribute.u2attributesCount > 0
                ? new Attribute[codeAttribute.u2attributesCount]
                : EMPTY_ATTRIBUTES);

    newCodeAttribute.setProcessingFlags(codeAttribute.getProcessingFlags());

    CodeAttributeComposer codeAttributeComposer = new CodeAttributeComposer();

    codeAttributeComposer.beginCodeFragment(codeAttribute.u4codeLength + 32);

    // Add the instructions.
    codeAttribute.instructionsAccept(
        clazz, method, new InstructionAdder(targetClass, codeAttributeComposer));

    // Append a label just after the code.
    codeAttributeComposer.appendLabel(codeAttribute.u4codeLength);

    // Add the exceptions.
    codeAttribute.exceptionsAccept(
        clazz, method, new ExceptionInfoAdder(targetClass, codeAttributeComposer));

    // Add a line number if there wasn't a line number table before,
    // so we keep track of the source.
    if (codeAttribute.getAttribute(clazz, Attribute.LINE_NUMBER_TABLE) == null) {
      String source =
          clazz.getName() + '.' + method.getName(clazz) + method.getDescriptor(clazz) + ":0:0";

      codeAttributeComposer.insertLineNumber(new ExtendedLineNumberInfo(0, 0, source));
    }

    codeAttributeComposer.endCodeFragment();

    // Add the attributes.
    codeAttribute.attributesAccept(
        clazz,
        method,
        new AttributeAdder(targetClass, targetMember, newCodeAttribute, replaceAttributes));

    // Apply these changes to the new code attribute.
    codeAttributeComposer.visitCodeAttribute(targetClass, (Method) targetMember, newCodeAttribute);

    // Add the completed code attribute to the target method.
    attributesEditor.addAttribute(newCodeAttribute);
  }

  public void visitStackMapAttribute(
      Clazz clazz,
      Method method,
      CodeAttribute codeAttribute,
      StackMapAttribute stackMapAttribute) {
    // TODO: Implement method.
  }

  public void visitStackMapTableAttribute(
      Clazz clazz,
      Method method,
      CodeAttribute codeAttribute,
      StackMapTableAttribute stackMapTableAttribute) {
    // TODO: Implement method.
  }

  public void visitLineNumberTableAttribute(
      Clazz clazz,
      Method method,
      CodeAttribute codeAttribute,
      LineNumberTableAttribute lineNumberTableAttribute) {
    // Create a new line number table attribute.
    LineNumberTableAttribute newLineNumberTableAttribute =
        new LineNumberTableAttribute(
            constantAdder.addConstant(clazz, lineNumberTableAttribute.u2attributeNameIndex),
            0,
            new LineNumberInfo[lineNumberTableAttribute.u2lineNumberTableLength]);

    // Add the line numbers.
    lineNumberTableAttribute.accept(
        clazz, method, codeAttribute, new LineNumberInfoAdder(newLineNumberTableAttribute));

    newLineNumberTableAttribute.setProcessingFlags(lineNumberTableAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newLineNumberTableAttribute);
  }

  public void visitLocalVariableTableAttribute(
      Clazz clazz,
      Method method,
      CodeAttribute codeAttribute,
      LocalVariableTableAttribute localVariableTableAttribute) {
    // Create a new local variable table attribute.
    LocalVariableTableAttribute newLocalVariableTableAttribute =
        new LocalVariableTableAttribute(
            constantAdder.addConstant(clazz, localVariableTableAttribute.u2attributeNameIndex),
            0,
            new LocalVariableInfo[localVariableTableAttribute.u2localVariableTableLength]);

    // Add the local variables.
    localVariableTableAttribute.localVariablesAccept(
        clazz,
        method,
        codeAttribute,
        new LocalVariableInfoAdder(targetClass, newLocalVariableTableAttribute));

    newLocalVariableTableAttribute.setProcessingFlags(
        localVariableTableAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newLocalVariableTableAttribute);
  }

  public void visitLocalVariableTypeTableAttribute(
      Clazz clazz,
      Method method,
      CodeAttribute codeAttribute,
      LocalVariableTypeTableAttribute localVariableTypeTableAttribute) {
    // Create a new local variable type table attribute.
    LocalVariableTypeTableAttribute newLocalVariableTypeTableAttribute =
        new LocalVariableTypeTableAttribute(
            constantAdder.addConstant(clazz, localVariableTypeTableAttribute.u2attributeNameIndex),
            0,
            new LocalVariableTypeInfo
                [localVariableTypeTableAttribute.u2localVariableTypeTableLength]);

    // Add the local variable types.
    localVariableTypeTableAttribute.localVariablesAccept(
        clazz,
        method,
        codeAttribute,
        new LocalVariableTypeInfoAdder(targetClass, newLocalVariableTypeTableAttribute));

    newLocalVariableTypeTableAttribute.setProcessingFlags(
        localVariableTypeTableAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newLocalVariableTypeTableAttribute);
  }

  public void visitRuntimeVisibleAnnotationsAttribute(
      Clazz clazz, RuntimeVisibleAnnotationsAttribute runtimeVisibleAnnotationsAttribute) {
    // Create a new annotations attribute.
    RuntimeVisibleAnnotationsAttribute newAnnotationsAttribute =
        new RuntimeVisibleAnnotationsAttribute(
            constantAdder.addConstant(
                clazz, runtimeVisibleAnnotationsAttribute.u2attributeNameIndex),
            0,
            new Annotation[runtimeVisibleAnnotationsAttribute.u2annotationsCount]);

    // Add the annotations.
    runtimeVisibleAnnotationsAttribute.annotationsAccept(
        clazz, new AnnotationAdder(targetClass, newAnnotationsAttribute));

    newAnnotationsAttribute.setProcessingFlags(
        runtimeVisibleAnnotationsAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newAnnotationsAttribute);
  }

  public void visitRuntimeInvisibleAnnotationsAttribute(
      Clazz clazz, RuntimeInvisibleAnnotationsAttribute runtimeInvisibleAnnotationsAttribute) {
    // Create a new annotations attribute.
    RuntimeInvisibleAnnotationsAttribute newAnnotationsAttribute =
        new RuntimeInvisibleAnnotationsAttribute(
            constantAdder.addConstant(
                clazz, runtimeInvisibleAnnotationsAttribute.u2attributeNameIndex),
            0,
            new Annotation[runtimeInvisibleAnnotationsAttribute.u2annotationsCount]);

    // Add the annotations.
    runtimeInvisibleAnnotationsAttribute.annotationsAccept(
        clazz, new AnnotationAdder(targetClass, newAnnotationsAttribute));

    newAnnotationsAttribute.setProcessingFlags(
        runtimeInvisibleAnnotationsAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newAnnotationsAttribute);
  }

  public void visitRuntimeVisibleParameterAnnotationsAttribute(
      Clazz clazz,
      Method method,
      RuntimeVisibleParameterAnnotationsAttribute runtimeVisibleParameterAnnotationsAttribute) {
    // Create a new annotations attribute.
    Annotation[][] parameterAnnotations =
        new Annotation[runtimeVisibleParameterAnnotationsAttribute.u1parametersCount][];

    Arrays.fill(parameterAnnotations, EMPTY_ANNOTATIONS);

    RuntimeVisibleParameterAnnotationsAttribute newParameterAnnotationsAttribute =
        new RuntimeVisibleParameterAnnotationsAttribute(
            constantAdder.addConstant(
                clazz, runtimeVisibleParameterAnnotationsAttribute.u2attributeNameIndex),
            0,
            new int[runtimeVisibleParameterAnnotationsAttribute.u1parametersCount],
            parameterAnnotations);

    // Add the annotations.
    runtimeVisibleParameterAnnotationsAttribute.annotationsAccept(
        clazz, method, new AnnotationAdder(targetClass, newParameterAnnotationsAttribute));

    newParameterAnnotationsAttribute.setProcessingFlags(
        runtimeVisibleParameterAnnotationsAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newParameterAnnotationsAttribute);
  }

  public void visitRuntimeInvisibleParameterAnnotationsAttribute(
      Clazz clazz,
      Method method,
      RuntimeInvisibleParameterAnnotationsAttribute runtimeInvisibleParameterAnnotationsAttribute) {
    // Create a new annotations attribute.
    Annotation[][] parameterAnnotations =
        new Annotation[runtimeInvisibleParameterAnnotationsAttribute.u1parametersCount][];

    Arrays.fill(parameterAnnotations, EMPTY_ANNOTATIONS);

    RuntimeInvisibleParameterAnnotationsAttribute newParameterAnnotationsAttribute =
        new RuntimeInvisibleParameterAnnotationsAttribute(
            constantAdder.addConstant(
                clazz, runtimeInvisibleParameterAnnotationsAttribute.u2attributeNameIndex),
            0,
            new int[runtimeInvisibleParameterAnnotationsAttribute.u1parametersCount],
            parameterAnnotations);

    // Add the annotations.
    runtimeInvisibleParameterAnnotationsAttribute.annotationsAccept(
        clazz, method, new AnnotationAdder(targetClass, newParameterAnnotationsAttribute));

    newParameterAnnotationsAttribute.setProcessingFlags(
        runtimeInvisibleParameterAnnotationsAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newParameterAnnotationsAttribute);
  }

  public void visitRuntimeVisibleTypeAnnotationsAttribute(
      Clazz clazz, RuntimeVisibleTypeAnnotationsAttribute runtimeVisibleTypeAnnotationsAttribute) {
    // Create a new type annotations attribute.
    RuntimeVisibleTypeAnnotationsAttribute newTypeAnnotationsAttribute =
        new RuntimeVisibleTypeAnnotationsAttribute(
            constantAdder.addConstant(
                clazz, runtimeVisibleTypeAnnotationsAttribute.u2attributeNameIndex),
            0,
            new TypeAnnotation[runtimeVisibleTypeAnnotationsAttribute.u2annotationsCount]);

    // Add the annotations.
    runtimeVisibleTypeAnnotationsAttribute.typeAnnotationsAccept(
        clazz, new TypeAnnotationAdder(targetClass, newTypeAnnotationsAttribute));

    newTypeAnnotationsAttribute.setProcessingFlags(
        runtimeVisibleTypeAnnotationsAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newTypeAnnotationsAttribute);
  }

  public void visitRuntimeInvisibleTypeAnnotationsAttribute(
      Clazz clazz,
      RuntimeInvisibleTypeAnnotationsAttribute runtimeInvisibleTypeAnnotationsAttribute) {
    // Create a new type annotations attribute.
    RuntimeInvisibleTypeAnnotationsAttribute newTypeAnnotationsAttribute =
        new RuntimeInvisibleTypeAnnotationsAttribute(
            constantAdder.addConstant(
                clazz, runtimeInvisibleTypeAnnotationsAttribute.u2attributeNameIndex),
            0,
            new TypeAnnotation[runtimeInvisibleTypeAnnotationsAttribute.u2annotationsCount]);

    // Add the annotations.
    runtimeInvisibleTypeAnnotationsAttribute.typeAnnotationsAccept(
        clazz, new TypeAnnotationAdder(targetClass, newTypeAnnotationsAttribute));

    newTypeAnnotationsAttribute.setProcessingFlags(
        runtimeInvisibleTypeAnnotationsAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newTypeAnnotationsAttribute);
  }

  public void visitAnnotationDefaultAttribute(
      Clazz clazz, Method method, AnnotationDefaultAttribute annotationDefaultAttribute) {
    // Create a new annotation default attribute.
    AnnotationDefaultAttribute newAnnotationDefaultAttribute =
        new AnnotationDefaultAttribute(
            constantAdder.addConstant(clazz, annotationDefaultAttribute.u2attributeNameIndex),
            null);

    // Add the annotations.
    annotationDefaultAttribute.defaultValueAccept(
        clazz, new ElementValueAdder(targetClass, newAnnotationDefaultAttribute, false));

    newAnnotationDefaultAttribute.setProcessingFlags(
        annotationDefaultAttribute.getProcessingFlags());

    // Add it to the target.
    attributesEditor.addAttribute(newAnnotationDefaultAttribute);
  }
}