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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.evaluation.value;

/**
 * {@link IntegerValue} that is unknown.
 *
 * This class handles interactions with: - IntegerValue (in general)
 *
 * @author Eric Lafortune
 */
public class UnknownIntegerValue extends IntegerValue {
  // Basic unary methods.

  public IntegerValue negate() {
    return this;
  }

  public IntegerValue convertToByte() {
    return this;
  }

  public IntegerValue convertToCharacter() {
    return this;
  }

  public IntegerValue convertToShort() {
    return this;
  }

  public LongValue convertToLong() {
    return BasicValueFactory.LONG_VALUE;
  }

  public FloatValue convertToFloat() {
    return BasicValueFactory.FLOAT_VALUE;
  }

  public DoubleValue convertToDouble() {
    return BasicValueFactory.DOUBLE_VALUE;
  }

  // Basic binary methods.

  public IntegerValue generalize(IntegerValue other) {
    return this;
  }

  public IntegerValue add(IntegerValue other) {
    return this;
  }

  public IntegerValue subtract(IntegerValue other) {
    return this;
  }

  public IntegerValue subtractFrom(IntegerValue other) {
    return this;
  }

  public IntegerValue multiply(IntegerValue other) throws ArithmeticException {
    return this;
  }

  public IntegerValue divide(IntegerValue other) throws ArithmeticException {
    return this;
  }

  public IntegerValue divideOf(IntegerValue other) throws ArithmeticException {
    return this;
  }

  public IntegerValue remainder(IntegerValue other) throws ArithmeticException {
    return this;
  }

  public IntegerValue remainderOf(IntegerValue other) throws ArithmeticException {
    return this;
  }

  public IntegerValue shiftLeft(IntegerValue other) {
    return this;
  }

  public IntegerValue shiftLeftOf(IntegerValue other) {
    return this;
  }

  public IntegerValue shiftRight(IntegerValue other) {
    return this;
  }

  public IntegerValue shiftRightOf(IntegerValue other) {
    return this;
  }

  public IntegerValue unsignedShiftRight(IntegerValue other) {
    return this;
  }

  public IntegerValue unsignedShiftRightOf(IntegerValue other) {
    return this;
  }

  public LongValue shiftLeftOf(LongValue other) {
    return BasicValueFactory.LONG_VALUE;
  }

  public LongValue shiftRightOf(LongValue other) {
    return BasicValueFactory.LONG_VALUE;
  }

  public LongValue unsignedShiftRightOf(LongValue other) {
    return BasicValueFactory.LONG_VALUE;
  }

  public IntegerValue and(IntegerValue other) {
    return this;
  }

  public IntegerValue or(IntegerValue other) {
    return this;
  }

  public IntegerValue xor(IntegerValue other) {
    return this;
  }

  public int equal(IntegerValue other) {
    return MAYBE;
  }

  public int lessThan(IntegerValue other) {
    return MAYBE;
  }

  public int lessThanOrEqual(IntegerValue other) {
    return MAYBE;
  }

  // Implementations for Object.

  public boolean equals(Object object) {
    return object != null && this.getClass() == object.getClass();
  }

  public int hashCode() {
    return this.getClass().hashCode();
  }

  public String toString() {
    return "i";
  }
}