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

/**
 * This {@link Attribute} represents a local variable table attribute.
 *
 * @author Eric Lafortune
 */
public class LocalVariableTableAttribute extends Attribute {
  public int u2localVariableTableLength;
  public LocalVariableInfo[] localVariableTable;

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

  /** Creates an initialized LocalVariableTableAttribute. */
  public LocalVariableTableAttribute(
      int u2attributeNameIndex,
      int u2localVariableTableLength,
      LocalVariableInfo[] localVariableTable) {
    super(u2attributeNameIndex);

    this.u2localVariableTableLength = u2localVariableTableLength;
    this.localVariableTable = localVariableTable;
  }

  // Implementations for Attribute.

  public void accept(
      Clazz clazz, Method method, CodeAttribute codeAttribute, AttributeVisitor attributeVisitor) {
    attributeVisitor.visitLocalVariableTableAttribute(clazz, method, codeAttribute, this);
  }

  /** Applies the given visitor to all local variables. */
  public void localVariablesAccept(
      Clazz clazz,
      Method method,
      CodeAttribute codeAttribute,
      LocalVariableInfoVisitor localVariableInfoVisitor) {
    for (int index = 0; index < u2localVariableTableLength; index++) {
      // We don't need double dispatching here, since there is only one
      // type of LocalVariableInfo.
      localVariableInfoVisitor.visitLocalVariableInfo(
          clazz, method, codeAttribute, localVariableTable[index]);
    }
  }
}