// Copyright (c) 2020, 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.horizontalclassmerging.policies;

import com.android.tools.r8.graph.DexEncodedMethod;
import com.android.tools.r8.graph.DexProgramClass;
import com.android.tools.r8.horizontalclassmerging.HorizontalClassMerger.Mode;
import com.android.tools.r8.horizontalclassmerging.SingleClassPolicy;

public class NoInstanceInitializers extends SingleClassPolicy {

  public NoInstanceInitializers(Mode mode) {
    // TODO(b/181846319): Allow constructors, as long as the constructor protos remain unchanged
    //  (in particular, we can't add nulls at constructor call sites).
    assert mode.isFinal();
  }

  @Override
  public boolean canMerge(DexProgramClass clazz) {
    return !clazz.getMethodCollection().hasDirectMethods(DexEncodedMethod::isInstanceInitializer);
  }

  @Override
  public String getName() {
    return "NoInstanceInitializers";
  }
}