/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011 SonarSource and Eriks Nukis
* dev@sonar.codehaus.org
*
* This program 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 3 of the License, or (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.javascript.checks;
import com.sonar.sslr.api.AstNode;
import org.sonar.check.BelongsToProfile;
import org.sonar.check.Priority;
import org.sonar.check.Rule;
import org.sonar.javascript.parser.EcmaScriptGrammar;
import org.sonar.squidbridge.checks.SquidCheck;
import org.sonar.sslr.parser.LexerlessGrammar;
@Rule(
key = "ForIn",
priority = Priority.MAJOR)
@BelongsToProfile(title = CheckList.SONAR_WAY_PROFILE, priority = Priority.MAJOR)
public class ForInCheck extends SquidCheck<LexerlessGrammar> {
@Override
public void init() {
subscribeTo(EcmaScriptGrammar.FOR_IN_STATEMENT);
}
@Override
public void visitNode(AstNode astNode) {
AstNode statementNode = astNode.getFirstChild(EcmaScriptGrammar.STATEMENT);
if (statementNode.getFirstChild().is(EcmaScriptGrammar.BLOCK)) {
AstNode statementListNode = statementNode.getFirstChild().getFirstChild(EcmaScriptGrammar.STATEMENT_LIST);
if (statementListNode == null) {
statementNode = null;
} else {
statementNode = statementListNode.getChildren(EcmaScriptGrammar.STATEMENT).get(0).getFirstChild();
}
} else {
statementNode = statementNode.getFirstChild();
}
if (statementNode != null && statementNode.isNot(EcmaScriptGrammar.IF_STATEMENT)) {
getContext().createLineViolation(this, "Insert an if statement at the beginning of this loop to filter items.", astNode);
}
}
}