// 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.utils.codeinspector;

import static com.android.tools.r8.TestBase.toDexType;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import com.android.tools.r8.graph.DexItemFactory;
import com.android.tools.r8.graph.DexType;
import com.android.tools.r8.graph.classmerging.HorizontallyMergedLambdaClasses;
import java.util.Set;
import java.util.function.BiConsumer;

public class HorizontallyMergedLambdaClassesInspector {

  private final DexItemFactory dexItemFactory;
  private final HorizontallyMergedLambdaClasses horizontallyMergedLambdaClasses;

  public HorizontallyMergedLambdaClassesInspector(
      DexItemFactory dexItemFactory,
      HorizontallyMergedLambdaClasses horizontallyMergedLambdaClasses) {
    this.dexItemFactory = dexItemFactory;
    this.horizontallyMergedLambdaClasses = horizontallyMergedLambdaClasses;
  }

  public HorizontallyMergedLambdaClassesInspector assertMerged(Class<?> clazz) {
    assertTrue(
        horizontallyMergedLambdaClasses.hasBeenMergedIntoDifferentType(
            toDexType(clazz, dexItemFactory)));
    return this;
  }

  public HorizontallyMergedLambdaClassesInspector assertMerged(Class<?>... classes) {
    for (Class<?> clazz : classes) {
      assertMerged(clazz);
    }
    return this;
  }

  public HorizontallyMergedLambdaClassesInspector assertClassNotMerged(Class<?> clazz) {
    assertFalse(
        horizontallyMergedLambdaClasses.hasBeenMergedIntoDifferentType(
            toDexType(clazz, dexItemFactory)));
    return this;
  }

  public void forEachMergeGroup(BiConsumer<Set<DexType>, DexType> consumer) {
    horizontallyMergedLambdaClasses.forEachMergeGroup(consumer);
  }
}