src/main/java/com/android/tools/r8/graph/PresortedComparable.java

// Copyright (c) 2016, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package com.android.tools.r8.graph;

import com.android.tools.r8.naming.NamingLens;

public interface PresortedComparable<T> extends Presorted, Comparable<T> {
  // Slow comparison methods that make no use of indices for comparisons. These are used
  // for sorting operations when reading dex files.
  int slowCompareTo(T other);
  int slowCompareTo(T other, NamingLens namingLens);
  // Layered comparison methods that make use of indices for subpart comparisons. These rely
  // on subparts already being sorted and having indices assigned.
  int layeredCompareTo(T other, NamingLens namingLens);

  static <T extends PresortedComparable<T>> int slowCompare(T a, T b) {
    return a.slowCompareTo(b);
  }
}