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Issue #10272: Upgrade Java Grammar from ANTLR2 to ANTLR4
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src/main/java/com/puppycrawl/tools/checkstyle/CheckstyleParserErrorStrategy.java
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//////////////////////////////////////////////////////////////////////////////// | ||
// checkstyle: Checks Java source code for adherence to a set of rules. | ||
// Copyright (C) 2001-2021 the original author or authors. | ||
// | ||
// This library is free software; you can redistribute it and/or | ||
// modify it under the terms of the GNU Lesser General Public | ||
// License as published by the Free Software Foundation; either | ||
// version 2.1 of the License, or (at your option) any later version. | ||
// | ||
// This library is distributed in the hope that it will be useful, | ||
// but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
// Lesser General Public License for more details. | ||
// | ||
// You should have received a copy of the GNU Lesser General Public | ||
// License along with this library; if not, write to the Free Software | ||
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
//////////////////////////////////////////////////////////////////////////////// | ||
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package com.puppycrawl.tools.checkstyle; | ||
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import org.antlr.v4.runtime.BailErrorStrategy; | ||
import org.antlr.v4.runtime.InputMismatchException; | ||
import org.antlr.v4.runtime.Parser; | ||
import org.antlr.v4.runtime.Token; | ||
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/** | ||
* Extending BailErrorStrategy allows us to report errors while | ||
* cancelling the parsing operation. If input is not syntactically | ||
* correct, we do not need to use antlr's recovery strategy, which | ||
* can add significant overhead. | ||
* | ||
*/ | ||
public class CheckstyleParserErrorStrategy extends BailErrorStrategy { | ||
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@Override | ||
public Token recoverInline(Parser recognizer) { | ||
reportError(recognizer, new InputMismatchException(recognizer)); | ||
return super.recoverInline(recognizer); | ||
} | ||
} |
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