org.sonar.javascript.checks.NonEmptyCaseWithoutBreakCheck Maven / Gradle / Ivy
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011 SonarSource and Eriks Nukis
* [email protected]
*
* 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 org.sonar.check.BelongsToProfile;
import org.sonar.check.Priority;
import org.sonar.check.Rule;
import org.sonar.javascript.model.interfaces.Tree.Kind;
import org.sonar.javascript.model.interfaces.statement.SwitchClauseTree;
import org.sonar.squidbridge.annotations.Tags;
import org.sonar.squidbridge.checks.SquidCheck;
import org.sonar.sslr.parser.LexerlessGrammar;
import com.google.common.collect.Iterables;
import com.sonar.sslr.api.AstNode;
@Rule(
key = "NonEmptyCaseWithoutBreak",
priority = Priority.MAJOR,
tags = {Tags.CERT, Tags.CWE, Tags.PITFALL, Tags.MISRA})
@BelongsToProfile(title = CheckList.SONAR_WAY_PROFILE, priority = Priority.MAJOR)
public class NonEmptyCaseWithoutBreakCheck extends SquidCheck {
@Override
public void init() {
subscribeTo(Kind.CASE_CLAUSE, Kind.DEFAULT_CLAUSE);
}
@Override
public void visitNode(AstNode astNode) {
if (astNode.getNextAstNode().is(Kind.CASE_CLAUSE, Kind.DEFAULT_CLAUSE)) {
SwitchClauseTree block = (SwitchClauseTree) astNode;
if (!block.statements().isEmpty()
&& !Iterables.getLast(block.statements()).is(Kind.BREAK_STATEMENT, Kind.RETURN_STATEMENT, Kind.THROW_STATEMENT)) {
getContext().createLineViolation(this, "Last statement in this switch-clause should be an unconditional break.", astNode);
}
}
}
}