com.liferay.source.formatter.checkstyle.checks.WhitespaceAroundGenericsCheck Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* 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.
*/
package com.liferay.source.formatter.checkstyle.checks;
import com.liferay.petra.string.CharPool;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
/**
* @author Hugo Huijser
*/
public class WhitespaceAroundGenericsCheck extends BaseCheck {
@Override
public int[] getDefaultTokens() {
return new int[] {TokenTypes.GENERIC_END, TokenTypes.GENERIC_START};
}
@Override
protected void doVisitToken(DetailAST detailAST) {
if (!hasParentWithTokenType(detailAST, TokenTypes.TYPE)) {
return;
}
String line = getLine(detailAST.getLineNo() - 1);
if (detailAST.getType() == TokenTypes.GENERIC_END) {
if ((detailAST.getColumnNo() + 1) >= line.length()) {
return;
}
char c = line.charAt(detailAST.getColumnNo() + 1);
if ((c != CharPool.CLOSE_PARENTHESIS) && (c != CharPool.COMMA) &&
(c != CharPool.PERIOD) && (c != CharPool.GREATER_THAN) &&
(c != CharPool.OPEN_BRACKET) && (c != CharPool.SPACE)) {
log(detailAST, _MSG_MISSING_WHITESPACE, detailAST.getText());
}
}
else if (!isAtLineStart(detailAST, line)) {
char c = line.charAt(detailAST.getColumnNo() - 1);
if (c == CharPool.SPACE) {
log(detailAST, _MSG_REDUNDANT_WHITESPACE, detailAST.getText());
}
}
}
private static final String _MSG_MISSING_WHITESPACE = "whitespace.missing";
private static final String _MSG_REDUNDANT_WHITESPACE =
"whitespace.redundant";
}