content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.tools.layoutlib.create;
  
  import org.objectweb.asm.ClassVisitor;
  
  /**
   * Class adapter that modifies the file version of classes to be
   * below a certain maximum version.
   */
  public class ChangeFileVersionAdapter extends ClassVisitor {
      private final Log mLog;
      private final int mMaxVersion;
  
      public ChangeFileVersionAdapter(Log logger, int maxVersion, ClassVisitor cv) {
          super(Main.ASM_VERSION, cv);
          mLog = logger;
          mMaxVersion = maxVersion;
      }
  
      @Override
      public void visit(int version, int access, String name, String signature, String superName,
              String[] interfaces) {
          int classFileVersion = version;
          if (classFileVersion > mMaxVersion) {
              classFileVersion = mMaxVersion;
              mLog.debug("Class %s has had its file version changed from %d to %d", name, version,
                      classFileVersion);
          }
          super.visit(classFileVersion, access, name, signature, superName, interfaces);
      }
  }
  