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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;

import proguard.classfile.Clazz;
import proguard.classfile.attribute.visitor.*;

/**
 * This {@link Attribute} represents a bootstrap methods attribute.
 *
 * @author Eric Lafortune
 */
public class BootstrapMethodsAttribute extends Attribute {
  public int u2bootstrapMethodsCount;
  public BootstrapMethodInfo[] bootstrapMethods;

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

  /** Creates an initialized BootstrapMethodsAttribute. */
  public BootstrapMethodsAttribute(
      int u2attributeNameIndex,
      int u2bootstrapMethodsCount,
      BootstrapMethodInfo[] bootstrapMethods) {
    super(u2attributeNameIndex);

    this.u2bootstrapMethodsCount = u2bootstrapMethodsCount;
    this.bootstrapMethods = bootstrapMethods;
  }

  // Implementations for Attribute.

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

  /** Applies the given visitor to all bootstrap method info entries. */
  public void bootstrapMethodEntriesAccept(
      Clazz clazz, BootstrapMethodInfoVisitor bootstrapMethodInfoVisitor) {
    for (int index = 0; index < u2bootstrapMethodsCount; index++) {
      // We don't need double dispatching here, since there is only one
      // type of BootstrapMethodInfo.
      bootstrapMethodInfoVisitor.visitBootstrapMethodInfo(clazz, bootstrapMethods[index]);
    }
  }

  /** Applies the given visitor to the specified bootstrap method info entry. */
  public void bootstrapMethodEntryAccept(
      Clazz clazz,
      int bootstrapMethodIndex,
      BootstrapMethodInfoVisitor bootstrapMethodInfoVisitor) {
    // We don't need double dispatching here, since there is only one
    // type of BootstrapMethodInfo.
    bootstrapMethodInfoVisitor.visitBootstrapMethodInfo(
        clazz, bootstrapMethods[bootstrapMethodIndex]);
  }
}