text: /*
   * Copyright 2013 The Error Prone Authors.
   *
   * 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.google.errorprone.refaster;
  
  import com.google.auto.value.AutoValue;
  import com.google.common.collect.ImmutableList;
  import com.sun.source.tree.ModifiersTree;
  import com.sun.source.tree.TreeVisitor;
  import com.sun.tools.javac.code.Flags;
  import com.sun.tools.javac.tree.JCTree.JCAnnotation;
  import com.sun.tools.javac.tree.JCTree.JCModifiers;
  import com.sun.tools.javac.util.List;
  import java.util.Set;
  import javax.lang.model.element.Modifier;
  
  /**
   * {@code UTree} representation of a {@code ModifiersTree}.
   *
   * @author lowasser@google.com (Louis Wasserman)
   */
  @AutoValue
  abstract class UModifiers extends UTree<JCModifiers> implements ModifiersTree {
    public static UModifiers create(long flagBits, UAnnotation... annotations) {
      return create(flagBits, ImmutableList.copyOf(annotations));
    }
  
    public static UModifiers create(long flagBits, Iterable<? extends UAnnotation> annotations) {
      return new AutoValue_UModifiers(flagBits, ImmutableList.copyOf(annotations));
    }
  
    abstract long flagBits();
  
    @Override
    public abstract ImmutableList<UAnnotation> getAnnotations();
  
    @Override
    public JCModifiers inline(Inliner inliner) throws CouldNotResolveImportException {
      return inliner
          .maker()
          .Modifiers(
              flagBits(), List.convert(JCAnnotation.class, inliner.inlineList(getAnnotations())));
    }
  
    @Override
    public Choice<Unifier> visitModifiers(ModifiersTree modifier, Unifier unifier) {
      return Choice.condition(getFlags().equals(modifier.getFlags()), unifier);
    }
  
    @Override
    public <R, D> R accept(TreeVisitor<R, D> visitor, D data) {
      return visitor.visitModifiers(this, data);
    }
  
    @Override
    public Kind getKind() {
      return Kind.MODIFIERS;
    }
  
    @Override
    public Set<Modifier> getFlags() {
      return Flags.asModifierSet(flagBits());
    }
  }
  