/*
* Copyright (C) 2012-2016 NS Solutions Corporation
*
* 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.htmlhifive.tools.jslint.parse;
/**
*
* パーサを制御するクラス.
*
* @author NS Solutions Corporation
*
*/
public final class ParserManager {
/**
* 現在実行中のパーサ.
*/
private static Parser currentParser;
/**
* コンストラクタ.
*/
private ParserManager() {
}
/**
* 実行中のパーサを取得する.
*
* @return 実行中のパーサ.
*/
public static Parser getCurrentParser() {
return currentParser;
}
/**
* 実行中のパーサをキャンセルし、新しいパーサに置き換える.
*
* @param newParser 新しいパーサ.
*/
public static void replaceCurrentParser(Parser newParser) {
if (currentParser == null) {
currentParser = newParser;
return;
}
cancelCurrentParser();
currentParser = newParser;
}
/**
* 実行中のパーサをキャンセルする.
*/
public static void cancelCurrentParser() {
if (currentParser != null) {
currentParser.cansel();
}
}
/**
* 実行中のパーサをクリアする.
*/
public static void clearCurrentParser() {
currentParser = null;
}
}