text: /**
   * @license
   * 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.
   */
  goog.provide('lf.proc.RewritePass');
  
  
  
  /**
   * @constructor
   * @struct
   * @template T
   */
  lf.proc.RewritePass = function() {
    /** @protected {!T} */
    this.rootNode;
  };
  
  
  /**
   * Rewrites the query plan.
   * @param {!T} rootNode
   * @return {!T} The root of the tree after rewriting.
   */
  lf.proc.RewritePass.prototype.rewrite = goog.abstractMethod;
  