com.liferay.source.formatter.checkstyle.checks.NotRequireThisCheck 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 java.util.List;
/**
* @author Hugo Huijser
*/
public class NotRequireThisCheck extends BaseCheck {
@Override
public int[] getDefaultTokens() {
return new int[] {TokenTypes.CTOR_DEF, TokenTypes.METHOD_DEF};
}
@Override
protected void doVisitToken(DetailAST detailAST) {
List thisASTList = DetailASTUtil.getAllChildTokens(
detailAST, true, TokenTypes.LITERAL_THIS);
outerLoop:
for (DetailAST thisAST : thisASTList) {
if (_isMethodCall(thisAST) ||
(thisAST.getPreviousSibling() != null)) {
continue;
}
DetailAST parentAST = thisAST.getParent();
if (parentAST.getType() != TokenTypes.DOT) {
continue;
}
DetailAST nameAST = parentAST.findFirstToken(TokenTypes.IDENT);
String name = nameAST.getText();
List definitionASTList = DetailASTUtil.getAllChildTokens(
detailAST, true, TokenTypes.PARAMETER_DEF,
TokenTypes.VARIABLE_DEF);
for (DetailAST definitionAST : definitionASTList) {
DetailAST definitionNameAST = definitionAST.findFirstToken(
TokenTypes.IDENT);
if (name.equals(definitionNameAST.getText())) {
continue outerLoop;
}
}
log(thisAST.getLineNo(), _MSG_VARIABLE_THIS_NOT_REQUIRED, name);
}
}
private boolean _isMethodCall(DetailAST detailAST) {
DetailAST parentAST = detailAST.getParent();
while (true) {
if (parentAST.getType() == TokenTypes.METHOD_CALL) {
return true;
}
if (parentAST.getType() != TokenTypes.DOT) {
return false;
}
parentAST = parentAST.getParent();
}
}
private static final String _MSG_VARIABLE_THIS_NOT_REQUIRED =
"variable.not.require.this";
}
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