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

/**
 * Representation of a bootstrap method.
 *
 * @author Eric Lafortune
 */
public class BootstrapMethodInfo extends SimpleProcessable {
  public static final int FLAG_BRIDGES = 4;
  public static final int FLAG_MARKERS = 2;
  public static final int FLAG_SERIALIZABLE = 1;

  public int u2methodHandleIndex;
  public int u2methodArgumentCount;
  public int[] u2methodArguments;

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

  /** Creates an initialized BootstrapMethodInfo. */
  public BootstrapMethodInfo(
      int u2methodHandleIndex, int u2methodArgumentCount, int[] u2methodArguments) {
    this.u2methodHandleIndex = u2methodHandleIndex;
    this.u2methodArgumentCount = u2methodArgumentCount;
    this.u2methodArguments = u2methodArguments;
  }

  /** Applies the given constant pool visitor to the method handle of the bootstrap method. */
  public void methodHandleAccept(Clazz clazz, ConstantVisitor constantVisitor) {
    clazz.constantPoolEntryAccept(u2methodHandleIndex, constantVisitor);
  }

  /** Applies the given constant pool visitor to the argument constants of the bootstrap method. */
  public void methodArgumentsAccept(Clazz clazz, ConstantVisitor constantVisitor) {
    for (int index = 0; index < u2methodArgumentCount; index++) {
      clazz.constantPoolEntryAccept(u2methodArguments[index], constantVisitor);
    }
  }
}