src/main/java/com/android/tools/r8/ir/optimize/info/field/NonTrivialInstanceFieldInitializationInfoCollection.java

// 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.ir.optimize.info.field;

import com.android.tools.r8.graph.DexEncodedField;
import com.android.tools.r8.graph.DexField;
import java.util.Map;

/** See {@link InstanceFieldArgumentInitializationInfo}. */
public class NonTrivialInstanceFieldInitializationInfoCollection
    extends InstanceFieldInitializationInfoCollection {

  private final Map<DexField, InstanceFieldInitializationInfo> infos;

  NonTrivialInstanceFieldInitializationInfoCollection(
      Map<DexField, InstanceFieldInitializationInfo> infos) {
    assert !infos.isEmpty();
    assert infos.values().stream().noneMatch(InstanceFieldInitializationInfo::isUnknown);
    this.infos = infos;
  }

  @Override
  public InstanceFieldInitializationInfo get(DexEncodedField field) {
    return infos.getOrDefault(field.field, UnknownInstanceFieldInitializationInfo.getInstance());
  }

  @Override
  public boolean isEmpty() {
    return false;
  }
}