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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.attribute.module;

import proguard.classfile.Clazz;
import proguard.classfile.attribute.Attribute;
import proguard.classfile.attribute.module.visitor.*;
import proguard.classfile.attribute.visitor.*;
import proguard.classfile.constant.visitor.ConstantVisitor;

/**
 * This {@link Attribute} represents a module attribute.
 *
 * @author Joachim Vandersmissen
 */
public class ModuleAttribute extends Attribute {
  public int u2moduleNameIndex;
  public int u2moduleFlags;
  public int u2moduleVersionIndex;
  public int u2requiresCount;
  public RequiresInfo[] requires;
  public int u2exportsCount;
  public ExportsInfo[] exports;
  public int u2opensCount;
  public OpensInfo[] opens;
  public int u2usesCount;
  public int[] u2uses;
  public int u2providesCount;
  public ProvidesInfo[] provides;

  /** Creates an uninitialized ModuleAttribute. */
  public ModuleAttribute() {}

  /** Creates an initialized ModuleAttribute. */
  public ModuleAttribute(
      int u2attributeNameIndex,
      int u2moduleNameIndex,
      int u2moduleFlags,
      int u2moduleVersionIndex,
      int u2requiresCount,
      RequiresInfo[] requires,
      int u2exportsCount,
      ExportsInfo[] exports,
      int u2opensCount,
      OpensInfo[] opens,
      int u2usesCount,
      int[] u2uses,
      int u2ProvidesCount,
      ProvidesInfo[] provides) {
    super(u2attributeNameIndex);

    this.u2moduleNameIndex = u2moduleNameIndex;
    this.u2moduleFlags = u2moduleFlags;
    this.u2moduleVersionIndex = u2moduleVersionIndex;
    this.u2requiresCount = u2requiresCount;
    this.requires = requires;
    this.u2exportsCount = u2exportsCount;
    this.exports = exports;
    this.u2opensCount = u2opensCount;
    this.opens = opens;
    this.u2usesCount = u2usesCount;
    this.u2uses = u2uses;
    this.u2providesCount = u2ProvidesCount;
    this.provides = provides;
  }

  // Implementations for Attribute.

  public void accept(Clazz clazz, AttributeVisitor attributeVisitor) {
    attributeVisitor.visitModuleAttribute(clazz, this);
  }

  /** Applies the given constant pool visitor to the Utf8 constant of the name, if any. */
  public void nameAccept(Clazz clazz, ConstantVisitor constantVisitor) {
    if (u2moduleNameIndex != 0) {
      clazz.constantPoolEntryAccept(u2moduleNameIndex, constantVisitor);
    }
  }

  /** Applies the given constant pool visitor to the Utf8 constant of the version, if any. */
  public void versionAccept(Clazz clazz, ConstantVisitor constantVisitor) {
    if (u2moduleVersionIndex != 0) {
      clazz.constantPoolEntryAccept(u2moduleVersionIndex, constantVisitor);
    }
  }

  /** Applies the given visitor to all requires. */
  public void requiresAccept(Clazz clazz, RequiresInfoVisitor requiresInfoVisitor) {
    for (int index = 0; index < u2requiresCount; index++) {
      // We don't need double dispatching here, since there is only one
      // type of RequiresInfo.
      requiresInfoVisitor.visitRequiresInfo(clazz, requires[index]);
    }
  }

  /** Applies the given visitor to all exports. */
  public void exportsAccept(Clazz clazz, ExportsInfoVisitor exportsInfoVisitor) {
    for (int index = 0; index < u2exportsCount; index++) {
      // We don't need double dispatching here, since there is only one
      // type of ExportsInfo.
      exportsInfoVisitor.visitExportsInfo(clazz, exports[index]);
    }
  }

  /** Applies the given visitor to all exports. */
  public void opensAccept(Clazz clazz, OpensInfoVisitor opensInfoVisitor) {
    for (int index = 0; index < u2opensCount; index++) {
      // We don't need double dispatching here, since there is only one
      // type of OpensInfo.
      opensInfoVisitor.visitOpensInfo(clazz, opens[index]);
    }
  }

  /** Applies the given constant pool visitor to all uses. */
  public void usesAccept(Clazz clazz, ConstantVisitor constantVisitor) {
    for (int index = 0; index < u2usesCount; index++) {
      clazz.constantPoolEntryAccept(u2uses[index], constantVisitor);
    }
  }

  /** Applies the given visitor to all provides. */
  public void providesAccept(Clazz clazz, ProvidesInfoVisitor providesInfoVisitor) {
    for (int index = 0; index < u2providesCount; index++) {
      // We don't need double dispatching here, since there is only one
      // type of ProvidesInfo.
      providesInfoVisitor.visitProvidesInfo(clazz, provides[index]);
    }
  }
}