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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.*;
import proguard.classfile.constant.visitor.ConstantVisitor;
import proguard.util.SimpleProcessable;

/**
 * Representation of a Requires entry in a {@link Module} attribute.
 *
 * @author Joachim Vandersmissen
 */
public class RequiresInfo extends SimpleProcessable {
  public int u2requiresIndex;
  public int u2requiresFlags;
  public int u2requiresVersionIndex;

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

  /** Creates an uninitialized RequiresInfo. */
  public RequiresInfo(int u2requiresIndex, int u2requiresFlags, int u2requiresVersionIndex) {
    this.u2requiresIndex = u2requiresIndex;
    this.u2requiresFlags = u2requiresFlags;
    this.u2requiresVersionIndex = u2requiresVersionIndex;
  }

  /** Applies the given constant pool visitor to the module constant of the module, if any. */
  public void moduleAccept(Clazz clazz, ConstantVisitor constantVisitor) {
    if (u2requiresIndex != 0) {
      clazz.constantPoolEntryAccept(u2requiresIndex, constantVisitor);
    }
  }

  /** Applies the given constant pool visitor to the Utf8 constant of the version, if any. */
  public void versionAccept(Clazz clazz, ConstantVisitor constantVisitor) {
    if (u2requiresVersionIndex != 0) {
      clazz.constantPoolEntryAccept(u2requiresVersionIndex, constantVisitor);
    }
  }
}