/*
* 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.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 = "ElseIfWithoutElse",
priority = Priority.MAJOR)
public class ElseIfWithoutElseCheck extends SquidCheck<LexerlessGrammar> {
@Override
public void init() {
subscribeTo(EcmaScriptGrammar.IF_STATEMENT);
}
@Override
public void visitNode(AstNode node) {
if (isElseIf(node)) {
AstNode elseClause = node.getFirstChild(EcmaScriptGrammar.ELSE_CLAUSE);
if (elseClause == null) {
getContext().createLineViolation(this, "Add the missing \"else\" clause.", node);
}
}
}
private boolean isElseIf(AstNode node) {
return isElse(node.getParent().getParent());
}
private boolean isElse(AstNode node) {
return node != null && node.is(EcmaScriptGrammar.ELSE_CLAUSE);
}
}