org.teamapps.dto.generate.ParserFactory Maven / Gradle / Ivy
/*-
* ========================LICENSE_START=================================
* TeamApps
* ---
* Copyright (C) 2014 - 2024 TeamApps.org
* ---
* 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.
* =========================LICENSE_END==================================
*/
package org.teamapps.dto.generate;
import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.misc.ParseCancellationException;
import org.teamapps.dto.TeamAppsDtoLexer;
import org.teamapps.dto.TeamAppsDtoParser;
import java.io.IOException;
import java.io.Reader;
public class ParserFactory {
public static TeamAppsDtoParser createParser(Reader reader) throws IOException {
TeamAppsDtoLexer lexer = new TeamAppsDtoLexer(CharStreams.fromReader(reader));
CommonTokenStream tokens = new CommonTokenStream(lexer);
TeamAppsDtoParser parser = new TeamAppsDtoParser(tokens);
parser.addErrorListener(new ThrowingErrorListener());
parser.setBuildParseTree(true);
return parser;
}
public static class ThrowingErrorListener extends BaseErrorListener {
@Override
public void syntaxError(Recognizer recognizer, Object offendingSymbol, int line, int charPositionInLine, String msg, RecognitionException e)
throws ParseCancellationException {
throw new ParseCancellationException("line " + line + ":" + charPositionInLine + " " + msg);
}
}
}