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package org.elasticsearch.plan.a;
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.
*/
import java.text.ParseException;
import org.antlr.v4.runtime.CharStream;
import org.antlr.v4.runtime.LexerNoViableAltException;
import org.antlr.v4.runtime.misc.Interval;
class ErrorHandlingLexer extends PlanALexer {
public ErrorHandlingLexer(CharStream charStream) {
super(charStream);
}
@Override
public void recover(LexerNoViableAltException lnvae) {
CharStream charStream = lnvae.getInputStream();
int startIndex = lnvae.getStartIndex();
String text = charStream.getText(Interval.of(startIndex, charStream.index()));
ParseException parseException = new ParseException("Error [" + _tokenStartLine + ":" +
_tokenStartCharPositionInLine + "]: unexpected character [" +
getErrorDisplay(text) + "].", _tokenStartCharIndex);
parseException.initCause(lnvae);
throw new RuntimeException(parseException);
}
}
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