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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) 2002-2023 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.util;

/**
 * Constants used by ProGuard for marking entities (classes, class members, resource files, ...)
 * during processing.
 */
public class ProcessingFlags {
  static final int mask1 = 0b1; // 1
  static final int mask2 = 0b10; // 2
  static final int mask3 = 0b100; // 4
  static final int mask4 = 0b1000; // 8
  static final int mask5 = 0b10000; // 16
  static final int mask6 = 0b100000; // 32
  static final int mask7 = 0b1000000; // 64
  static final int mask8 = 0b10000000; // 128
  static final int mask9 = 0b100000000; // 256
  static final int mask10 = 0b1000000000; // 512
  static final int mask11 = 0b10000000000; // 1024
  static final int mask12 = 0b100000000000; // 2048
  static final int mask13 = 0b1000000000000; // 4096
  static final int mask14 = 0b10000000000000; // 8192
  static final int mask15 = 0b100000000000000; // 16384
  static final int mask16 = 0b1000000000000000; // 32768
  static final int mask17 = 0b10000000000000000; // 65536
  static final int mask18 = 0b100000000000000000; // 131072
  static final int mask19 = 0b1000000000000000000; // 262144
  static final int mask20 = 0b10000000000000000000; // 524288
  static final int mask21 = 0b100000000000000000000; // 1048576
  static final int mask22 = 0b1000000000000000000000; // 2097152
  static final int mask23 = 0b10000000000000000000000; // 4194304
  static final int mask24 = 0b100000000000000000000000; // 8388608
  static final int mask25 = 0b1000000000000000000000000; // 16777216
  static final int mask26 = 0b10000000000000000000000000; // 33554432
  static final int mask27 = 0b100000000000000000000000000; // 67108864
  static final int mask28 = 0b1000000000000000000000000000; // 134217728
  static final int mask29 = 0b10000000000000000000000000000; // 268435456
  static final int mask30 = 0b100000000000000000000000000000; // 536870912
  static final int mask31 = 0b1000000000000000000000000000000; // 1073741824
  static final int mask32 = 0b10000000000000000000000000000000; // -2147483648

  // External configuration flags.
  public static final int DONT_SHRINK = mask21; // Marks whether an entity should not be shrunk.
  public static final int DONT_OPTIMIZE =
      mask22; // Marks whether an entity should not be optimized.
  public static final int DONT_OBFUSCATE =
      mask23; // Marks whether an entity should not be obfuscated.

  // Combined flags
  public static final int DONT_SHRINK_OR_OBFUSCATE = DONT_SHRINK | DONT_OBFUSCATE;
  public static final int DONT_SHRINK_OR_OPTIMIZE = DONT_SHRINK | DONT_OPTIMIZE;
  public static final int DONT_OPTIMIZE_OR_OBFUSCATE = DONT_OBFUSCATE | DONT_OPTIMIZE;
  public static final int DONT_SHRINK_OR_OPTIMIZE_OR_OBFUSCATE =
      DONT_SHRINK | DONT_OPTIMIZE | DONT_OBFUSCATE;

  // Internal processing flags.
  public static final int IS_CLASS_AVAILABLE =
      mask1; // Marks whether a class member can be used for generalization or specialization.
  public static final int REMOVED_FIELDS =
      mask3; // Marks whether a class has (at least one) fields removed.
  public static final int REMOVED_PUBLIC_FIELDS =
      mask4; // Marks whether a class has (at least one) public fields removed.
  public static final int REMOVED_CONSTRUCTORS =
      mask5; // Marks whether a class has (at least one) constructors removed.
  public static final int REMOVED_PUBLIC_CONSTRUCTORS =
      mask6; // Marks whether a class has (at least one) public constructors removed.
  public static final int REMOVED_METHODS =
      mask7; // Marks whether a class has (at least one) methods removed.
  public static final int REMOVED_PUBLIC_METHODS =
      mask8; // Marks whether a class has (at least one) public methods removed.
  public static final int INJECTED = mask10; // Marks whether an entity was injected.
  public static final int DONT_PROCESS_KOTLIN_MODULE =
      mask16; // Marks whether to processing a Kotlin module file.
  public static final int MODIFIED = mask15; // Marks whether an entity has been modified.

  // A mask for processing flags that can be copied as well when e.g. inlining a method / merging a
  // class.
  // TODO: needs to be extended, e.g. with OBFUSCATE_CODE.
  public static final int COPYABLE_PROCESSING_FLAGS = mask12;
}