001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.refactoring.java.plugins;
043:
044: import org.netbeans.modules.refactoring.java.spi.RefactoringVisitor;
045: import com.sun.source.tree.*;
046: import javax.lang.model.element.*;
047:
048: /**
049: *
050: * @author Jan Becicka
051: */
052: public class DeleteTransformer extends RefactoringVisitor {
053:
054: @Override
055: public Tree visitMethod(MethodTree tree, Element p) {
056: deleteDeclIfMatch(tree, p);
057: return super .visitMethod(tree, p);
058: }
059:
060: public Tree visitClass(ClassTree tree, Element p) {
061: deleteDeclIfMatch(tree, p);
062: return super .visitClass(tree, p);
063: }
064:
065: public Tree visitVariable(VariableTree tree, Element p) {
066: deleteDeclIfMatch(tree, p);
067: return super .visitVariable(tree, p);
068: }
069:
070: private void deleteDeclIfMatch(Tree tree, Element elementToFind) {
071: if (workingCopy.getTreeUtilities()
072: .isSynthetic(getCurrentPath()))
073: return;
074:
075: Element el = workingCopy.getTrees()
076: .getElement(getCurrentPath());
077: if (elementToFind.equals(el)) {
078: Tree parent = getCurrentPath().getParentPath().getLeaf();
079: Tree newOne = null;
080: if (parent.getKind() == Tree.Kind.CLASS) {
081: newOne = make.removeClassMember((ClassTree) parent,
082: tree);
083: } else if (parent.getKind() == Tree.Kind.COMPILATION_UNIT) {
084: newOne = make.removeCompUnitTypeDecl(
085: (CompilationUnitTree) parent, tree);
086: } else if (tree.getKind() == Tree.Kind.VARIABLE) {
087: if (parent.getKind() == Tree.Kind.METHOD) {
088: newOne = make.removeMethodParameter(
089: (MethodTree) parent, (VariableTree) tree);
090: } else {
091: newOne = make.removeBlockStatement(
092: (BlockTree) parent, (VariableTree) tree);
093: }
094: }
095: if (newOne != null) {
096: rewrite(parent, newOne);
097: }
098: }
099: }
100: }
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