src/main/java/com/android/tools/r8/ir/optimize/library/LibraryMethodModelCollection.java

// Copyright (c) 2019, 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.library;

import com.android.tools.r8.graph.DexEncodedMethod;
import com.android.tools.r8.graph.DexType;
import com.android.tools.r8.ir.code.IRCode;
import com.android.tools.r8.ir.code.InstructionListIterator;
import com.android.tools.r8.ir.code.InvokeMethod;
import com.android.tools.r8.ir.code.Value;
import java.util.Set;

/** Used to model the behavior of library methods for optimization purposes. */
public interface LibraryMethodModelCollection {

  /**
   * The library class whose methods are being modeled by this collection of models. As an example,
   * {@link BooleanMethodOptimizer} is modeling {@link Boolean}).
   */
  DexType getType();

  /**
   * Invoked for instructions in {@param code} that invoke a method on the class returned by {@link
   * #getType()}. The given {@param singleTarget} is guaranteed to be non-null.
   */
  void optimize(
      IRCode code,
      InstructionListIterator instructionIterator,
      InvokeMethod invoke,
      DexEncodedMethod singleTarget,
      Set<Value> affectedValues);
}