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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 a integer value that is negated.
 *
 * @author Eric Lafortune
 */
public final class NegatedIntegerValue extends SpecificIntegerValue {
  private final IntegerValue integerValue;

  /** Creates a new negated integer value of the given integer value. */
  public NegatedIntegerValue(IntegerValue integerValue) {
    this.integerValue = integerValue;
  }

  // Implementations of unary methods of IntegerValue.

  public IntegerValue negate() {
    return integerValue;
  }

  // Implementations for Object.

  public boolean equals(Object object) {
    return this == object
        || super.equals(object)
            && this.integerValue.equals(((NegatedIntegerValue) object).integerValue);
  }

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

  public String toString() {
    return "-" + integerValue;
  }
}