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Closure Compiler is a JavaScript optimizing compiler. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls. It is used in many of Google's JavaScript apps, including Gmail, Google Web Search, Google Maps, and Google Docs. This binary checks for style issues such as incorrect or missing JSDoc usage, and missing goog.require() statements. It does not do more advanced checks such as typechecking.

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/*
 * Copyright 2008 The Closure Compiler 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.javascript.jscomp;

import com.google.javascript.rhino.Node;

/**
 * Container class that holds information about JS message source.
 *
 * This class is specific to our JsMessage syntax. Allows you to use the
 * new-style or the old-style messages.
 *
 * Old-style:
 * 
 * var MSG_LEOPARD = 'Leopard';
 * var MSG_LEOPARD_HELP = 'The Leopard operating system';
 * 
 *
 * New-style:
 * 
 * /** @desc The leopard operating system * /
 * var MSG_LEOPARD = goog.getMsg('Leopard');
 * 
 *
 * @author [email protected] (Anatol Pomazau)
 */
public final class JsMessageDefinition {

  private final Node messageNode;

  /**
   * Constructs JS message definition.
   * @param messageNode A node that contains the message. It could be node with
   *     goog.getMsg() call or string/function for old-style messages.
   */
  JsMessageDefinition(Node messageNode) {
    this.messageNode = messageNode;
  }

  public Node getMessageNode() {
    return messageNode;
  }
}