1 ///////////////////////////////////////////////////////////////////////////////////////////////
2 // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
3 // Copyright (C) 2001-2024 the original author or authors.
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License, or (at your option) any later version.
9 //
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Lesser General Public License for more details.
14 //
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ///////////////////////////////////////////////////////////////////////////////////////////////
19
20 package com.puppycrawl.tools.checkstyle;
21
22 import org.antlr.v4.runtime.BailErrorStrategy;
23 import org.antlr.v4.runtime.InputMismatchException;
24 import org.antlr.v4.runtime.Parser;
25 import org.antlr.v4.runtime.Token;
26
27 /**
28 * Extending BailErrorStrategy allows us to report errors while
29 * cancelling the parsing operation. If input is not syntactically
30 * correct, we do not need to use antlr's recovery strategy, which
31 * can add significant overhead.
32 *
33 */
34 public class CheckstyleParserErrorStrategy extends BailErrorStrategy {
35
36 @Override
37 public Token recoverInline(Parser recognizer) {
38 reportError(recognizer, new InputMismatchException(recognizer));
39 return super.recoverInline(recognizer);
40 }
41 }