src/main/java/com/android/tools/r8/utils/positions/AppPositionRemapper.java

// Copyright (c) 2025, 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.utils.positions;

import com.android.tools.r8.graph.AppView;
import com.android.tools.r8.graph.DexProgramClass;
import com.android.tools.r8.utils.CfLineToMethodMapper;
import com.android.tools.r8.utils.positions.ClassPositionRemapper.IdentityPositionRemapper;
import com.android.tools.r8.utils.positions.ClassPositionRemapper.KotlinInlineFunctionAppPositionRemapper;
import com.android.tools.r8.utils.positions.ClassPositionRemapper.OptimizingPositionRemapper;

public interface AppPositionRemapper {

  ClassPositionRemapper createClassPositionRemapper(DexProgramClass clazz);

  static AppPositionRemapper create(AppView<?> appView, CfLineToMethodMapper cfLineToMethodMapper) {
    boolean identityMapping = appView.options().lineNumberOptimization.isOff();
    AppPositionRemapper positionRemapper =
        identityMapping
            ? new IdentityPositionRemapper()
            : new OptimizingPositionRemapper(appView.options());

    // Kotlin inline functions and arguments have their inlining information stored in the
    // source debug extension annotation. Instantiate the kotlin remapper on top of the original
    // remapper to allow for remapping original positions to kotlin inline positions.
    return new KotlinInlineFunctionAppPositionRemapper(
        appView, positionRemapper, cfLineToMethodMapper);
  }
}