1 /* 2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.io.*; 25 import javax.annotation.processing.*; 26 import javax.lang.model.*; 27 import javax.lang.model.element.*; 28 import javax.lang.model.type.*; 29 import javax.lang.model.util.*; 30 import java.util.*; 31 import com.sun.source.tree.*; 32 import com.sun.source.util.*; 33 import static javax.tools.Diagnostic.Kind.*; 34 35 /** 36 * Using the tree API, retrieve element representations of anonymous 37 * classes and verify their names are as specified. 38 */ 39 public class TestAnonSourceNames extends JavacTestingAbstractProcessor { 40 41 public boolean process(Set<? extends TypeElement> annotations, 42 RoundEnvironment roundEnv) { 43 if (!roundEnv.processingOver()) { 44 Trees trees = Trees.instance(processingEnv); 45 46 for(Element rootElement : roundEnv.getRootElements()) { 47 TreePath treePath = trees.getPath(rootElement); 48 49 (new ClassTreeScanner(trees)). 50 scan(trees.getTree(rootElement), 51 treePath.getCompilationUnit()); 52 } 53 } 54 return true; 55 } 56 57 class ClassTreeScanner extends TreeScanner<Void, CompilationUnitTree> { 58 private Trees trees; 59 60 public ClassTreeScanner(Trees trees) { 61 super(); 62 this.trees = trees; 63 } 64 @Override 65 public Void visitClass(ClassTree node, CompilationUnitTree cu) { 66 Element element = trees.getElement(trees.getPath(cu, node)); 67 if (element == null) { 68 processingEnv.getMessager().printMessage(ERROR, 69 "No element retrieved for node named ''" + 70 node.getSimpleName() + "''."); 71 } else { 72 73 System.out.println("\nVisiting class ``" + element.getSimpleName() + 74 "'' of kind " + element.getKind()); 75 if (element instanceof TypeElement) { 76 TypeElement typeElement = (TypeElement) element; 77 String s = typeElement.getQualifiedName().toString(); 78 System.out.println("\tqualified name:" + s); 79 } else { 80 throw new RuntimeException("TypeElement not gotten from ClassTree."); 81 } 82 } 83 return super.visitClass(node, cu); 84 } 85 } 86 }