/*
 * Copyright 2014 Google Inc. All rights reserved.
 *
 * 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.testdata.template;

import com.google.errorprone.refaster.annotation.AfterTemplate;
import com.google.errorprone.refaster.annotation.BeforeTemplate;
import com.google.errorprone.refaster.annotation.Placeholder;

/**
 * Example of a Refaster template using block placeholders.
 */
public abstract class BlockPlaceholderTemplate<T extends AutoCloseable> {
  @Placeholder abstract T open();
  @Placeholder abstract void operateOn(T resource);
  
  @BeforeTemplate void before() throws Exception {
    T resource = open();
    try {
      operateOn(resource);
    } finally {
      resource.close();
    }
  }
  
  @AfterTemplate void after() throws Exception {
    try (T resource = open()) {
      operateOn(resource);
    }
  }
}