/*
* Contributions to FindBugs
* Copyright (C) 2006, Institut for Software
* An Institut of the University of Applied Sciences Rapperswil
*
* Author: Marco Busarello, Thierry Wyss
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.umd.cs.findbugs.plugin.eclipse.quickfix;
import static edu.umd.cs.findbugs.plugin.eclipse.quickfix.util.ASTUtil.getASTNode;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.Statement;
import org.eclipse.jdt.core.dom.rewrite.ASTRewrite;
import edu.umd.cs.findbugs.BugInstance;
import edu.umd.cs.findbugs.plugin.eclipse.quickfix.exception.BugResolutionException;
/**
* Statements that are useless should be removed from the code. The
* <CODE>RemoveUselessStatementResolution</CODE> removes such statements.
*
* @see <a
* href="http://findbugs.sourceforge.net/bugDescriptions.html#SA_FIELD_SELF_ASSIGNMENT">SA_FIELD_SELF_ASSIGNMENT</a>
* @see <a
* href="http://findbugs.sourceforge.net/bugDescriptions.html#SA_LOCAL_SELF_ASSIGNMENT">SA_LOCAL_SELF_ASSIGNMENT</a>
* @author <a href="mailto:mbusarel@hsr.ch">Marco Busarello</a>
* @author <a href="mailto:twyss@hsr.ch">Thierry Wyss</a>
* @version 1.0
*/
public class RemoveUselessStatementResolution extends BugResolution {
@Override
protected void repairBug(ASTRewrite rewrite, CompilationUnit workingUnit, BugInstance bug) throws BugResolutionException {
assert rewrite != null;
assert workingUnit != null;
assert bug != null;
Statement statement = findUselessStatement(getASTNode(workingUnit, bug.getPrimarySourceLineAnnotation()));
rewrite.remove(statement, null);
}
private Statement findUselessStatement(ASTNode node) {
if (node instanceof Statement) {
return (Statement) node;
}
return null;
}
@Override
protected boolean resolveBindings() {
return false;
}
}