org.drools.mvel.parser.GeneratedDrlConstraintParserTokenManagerBase Maven / Gradle / Ivy
/*
* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
* Copyright (C) 2011, 2013-2016 The JavaParser Team.
* Copyright 2019 Red Hat, Inc. and/or its affiliates.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser 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.
*
* Modified by Red Hat, Inc.
*/
package org.drools.mvel.parser;
import com.github.javaparser.ast.comments.BlockComment;
import com.github.javaparser.ast.comments.Comment;
import com.github.javaparser.ast.comments.JavadocComment;
import com.github.javaparser.ast.comments.LineComment;
import com.github.javaparser.TokenRange;
import com.github.javaparser.Problem;
import org.drools.mvel.parser.Token;
import com.github.javaparser.JavaToken;
import com.github.javaparser.Range;
import static com.github.javaparser.GeneratedJavaParserConstants.*;
import static com.github.javaparser.Position.pos;
/**
* Base class for {@link com.github.javaparser.GeneratedJavaParserTokenManager}
*/
abstract class GeneratedMvelParserTokenManagerBase {
/**
* Create a TokenRange that spans exactly one token
*/
private static TokenRange tokenRange(Token token) {
JavaToken javaToken = token.javaToken;
return new TokenRange(javaToken, javaToken);
}
/**
* Since comments are completely captured in a single token, including their delimiters, deconstruct them here so we
* can turn them into nodes later on.
*/
static Comment createCommentFromToken(Token token) {
String commentText = token.image;
if (token.kind == JAVADOC_COMMENT) {
return new JavadocComment(tokenRange(token), commentText.substring(3, commentText.length() - 2));
} else if (token.kind == MULTI_LINE_COMMENT) {
return new BlockComment(tokenRange(token), commentText.substring(2, commentText.length() - 2));
} else if (token.kind == SINGLE_LINE_COMMENT || token.kind == 4 || token.kind == 3 || token.kind == 7) {
// line comments have their end of line character(s) included, and we don't want that.
Range range = new Range(pos(token.beginLine, token.beginColumn), pos(token.endLine, token.endColumn));
while (commentText.endsWith("\r") || commentText.endsWith("\n")) {
commentText = commentText.substring(0, commentText.length() - 1);
}
range = range.withEnd(pos(range.begin.line, range.begin.column + commentText.length()));
LineComment comment = new LineComment(tokenRange(token), commentText.substring(2));
comment.setRange(range);
return comment;
}
throw new AssertionError("Unexpectedly got passed a non-comment token.");
}
}