com.liferay.source.formatter.checkstyle.checks.ConcatCheck 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.source.formatter.checkstyle.util.DetailASTUtil;
import com.puppycrawl.tools.checkstyle.api.DetailAST;
import com.puppycrawl.tools.checkstyle.api.TokenTypes;
import com.puppycrawl.tools.checkstyle.utils.CommonUtils;
import java.util.List;
/**
* @author Hugo Huijser
*/
public class ConcatCheck extends StringConcatenationCheck {
@Override
public int[] getDefaultTokens() {
return new int[] {
TokenTypes.CLASS_DEF, TokenTypes.ENUM_DEF, TokenTypes.INTERFACE_DEF
};
}
@Override
protected void doVisitToken(DetailAST detailAST) {
List methodCallASTList = DetailASTUtil.getMethodCalls(
detailAST, "StringBundler", "concat");
for (DetailAST methodCallAST : methodCallASTList) {
_checkConcatMethodCall(methodCallAST);
}
}
private void _checkConcatMethodCall(DetailAST methodCallAST) {
DetailAST elistAST = methodCallAST.findFirstToken(TokenTypes.ELIST);
DetailAST previousLiteralStringAST = null;
DetailAST childAST = elistAST.getFirstChild();
while (true) {
if (childAST == null) {
break;
}
if (childAST.getType() == TokenTypes.EXPR) {
DetailAST grandChildAST = childAST.getFirstChild();
if (grandChildAST.getType() != TokenTypes.STRING_LITERAL) {
previousLiteralStringAST = null;
}
else {
if (previousLiteralStringAST != null) {
_checkConcatMethodCallLiteralStrings(
previousLiteralStringAST, grandChildAST);
}
previousLiteralStringAST = grandChildAST;
}
}
childAST = childAST.getNextSibling();
}
}
private void _checkConcatMethodCallLiteralStrings(
DetailAST literalStringAST1, DetailAST literalStringAST2) {
String literalStringValue1 = literalStringAST1.getText();
literalStringValue1 = literalStringValue1.substring(
1, literalStringValue1.length() - 1);
String literalStringValue2 = literalStringAST2.getText();
literalStringValue2 = literalStringValue2.substring(
1, literalStringValue2.length() - 1);
if (literalStringAST1.getLineNo() == literalStringAST2.getLineNo()) {
log(
literalStringAST1.getLineNo(), MSG_COMBINE_LITERAL_STRINGS,
literalStringValue1, literalStringValue2);
return;
}
checkLiteralStringStartAndEndCharacter(
literalStringValue1, literalStringValue2,
literalStringAST1.getLineNo());
String line = getLine(literalStringAST1.getLineNo() - 1);
int lineLength = CommonUtils.lengthExpandedTabs(
line, line.length(), getTabWidth());
int pos = getStringBreakPos(
literalStringValue1, literalStringValue2,
maxLineLength - lineLength);
if (pos != -1) {
log(
literalStringAST2.getLineNo(), MSG_MOVE_LITERAL_STRING,
literalStringValue2.substring(0, pos + 1));
}
}
}
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