src/main/java/com/android/tools/r8/optimize/argumentpropagation/propagation/FlowGraphParameterNode.java

// Copyright (c) 2024, 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.optimize.argumentpropagation.propagation;

import com.android.tools.r8.graph.DexType;
import com.android.tools.r8.graph.ProgramMethod;
import com.android.tools.r8.optimize.argumentpropagation.codescanner.ConcreteMonomorphicMethodState;
import com.android.tools.r8.optimize.argumentpropagation.codescanner.ValueState;

class FlowGraphParameterNode extends FlowGraphNode {

  private final ProgramMethod method;
  private final ConcreteMonomorphicMethodState methodState;
  private final int parameterIndex;
  private final DexType parameterType;

  FlowGraphParameterNode(
      ProgramMethod method,
      ConcreteMonomorphicMethodState methodState,
      int parameterIndex,
      DexType parameterType) {
    this.method = method;
    this.methodState = methodState;
    this.parameterIndex = parameterIndex;
    this.parameterType = parameterType;
  }

  ProgramMethod getMethod() {
    return method;
  }

  int getParameterIndex() {
    return parameterIndex;
  }

  @Override
  DexType getStaticType() {
    return parameterType;
  }

  @Override
  ValueState getState() {
    return methodState.getParameterState(parameterIndex);
  }

  @Override
  void setState(ValueState parameterState) {
    methodState.setParameterState(parameterIndex, parameterState);
  }

  @Override
  boolean isParameterNode() {
    return true;
  }

  @Override
  FlowGraphParameterNode asParameterNode() {
    return this;
  }
}