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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) 2002-2021 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.evaluation.value;

/**
 * This {@link IntegerValue} represents the result of a binary operation on two integer values.
 *
 * @author Eric Lafortune
 */
public final class CompositeIntegerValue extends SpecificIntegerValue {
  public static final byte ADD = '+';
  public static final byte SUBTRACT = '-';
  public static final byte MULTIPLY = '*';
  public static final byte DIVIDE = '/';
  public static final byte REMAINDER = '%';
  public static final byte SHIFT_LEFT = '<';
  public static final byte SHIFT_RIGHT = '>';
  public static final byte UNSIGNED_SHIFT_RIGHT = '}';
  public static final byte AND = '&';
  public static final byte OR = '|';
  public static final byte XOR = '^';

  private final IntegerValue integerValue1;
  private final byte operation;
  private final IntegerValue integerValue2;

  /**
   * Creates a new composite integer value of the two given integer values and the given operation.
   */
  public CompositeIntegerValue(
      IntegerValue integerValue1, byte operation, IntegerValue integerValue2) {
    this.integerValue1 = integerValue1;
    this.operation = operation;
    this.integerValue2 = integerValue2;
  }

  // Implementations for Object.

  public boolean equals(Object object) {
    return this == object
        || super.equals(object)
            && this.integerValue1.equals(((CompositeIntegerValue) object).integerValue1)
            && this.operation == ((CompositeIntegerValue) object).operation
            && this.integerValue2.equals(((CompositeIntegerValue) object).integerValue2);
  }

  public int hashCode() {
    return super.hashCode() ^ integerValue1.hashCode() ^ integerValue2.hashCode();
  }

  public String toString() {
    return "(" + integerValue1 + ((char) operation) + integerValue2 + ")";
  }
}