/*
 * Copyright 2013-present Facebook, Inc.
 *
 * 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.facebook.buck.event;

/**
 * LeafEvents represent events that have no logical children and are useful for tracking the time
 * buck is spending logically grouped by categories, such as Parse, Javac, or Dx.  An example of
 * something that wouldn't be a good candidate for a LeafEvent would be a RuleEvent since we're not
 * spending an appreciable amount of time in the rules but in the steps instead.
 */
public interface LeafEvent extends BuckEvent {
  /**
   * @return The category time spent in this event should be accounted under.
   */
  public String getCategory();
}