VerifyAnnotationsAttributed.java revision 3170:dc017a37aac5
1/* 2 * Copyright (c) 2013, 2014, 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 24import com.sun.source.tree.CompilationUnitTree; 25import com.sun.source.tree.IdentifierTree; 26import com.sun.source.tree.MemberSelectTree; 27import com.sun.source.util.JavacTask; 28import com.sun.source.util.TreePathScanner; 29import com.sun.source.util.Trees; 30import com.sun.tools.javac.api.JavacTool; 31import com.sun.tools.javac.file.JavacFileManager; 32import java.io.File; 33import java.io.IOException; 34import java.net.URISyntaxException; 35import java.util.Collections; 36import javax.lang.model.element.Element; 37import javax.lang.model.element.ElementKind; 38 39public class VerifyAnnotationsAttributed { 40 public static void main(String... args) throws IOException, URISyntaxException { 41 if (args.length != 1) throw new IllegalStateException("Must provide class name!"); 42 File testSrc = new File(System.getProperty("test.src")); 43 File testFile = new File(testSrc, args[0]); 44 if (!testFile.canRead()) throw new IllegalStateException("Cannot read the test source"); 45 try (JavacFileManager fm = JavacTool.create().getStandardFileManager(null, null, null)) { 46 JavacTask task = JavacTool.create().getTask(null, 47 fm, 48 null, 49 Collections.<String>emptyList(), 50 null, 51 fm.getJavaFileObjects(testFile)); 52 final Trees trees = Trees.instance(task); 53 final CompilationUnitTree cut = task.parse().iterator().next(); 54 task.analyze(); 55 56 //ensure all the annotation attributes are annotated meaningfully 57 //all the attributes in the test file should contain either an identifier 58 //or a select, so only checking those for a reasonable Element/Symbol. 59 new TreePathScanner<Void, Void>() { 60 @Override 61 public Void visitIdentifier(IdentifierTree node, Void p) { 62 verifyAttributedMeaningfully(); 63 return super.visitIdentifier(node, p); 64 } 65 @Override 66 public Void visitMemberSelect(MemberSelectTree node, Void p) { 67 verifyAttributedMeaningfully(); 68 return super.visitMemberSelect(node, p); 69 } 70 private void verifyAttributedMeaningfully() { 71 Element el = trees.getElement(getCurrentPath()); 72 73 if (el == null || el.getKind() == ElementKind.OTHER) { 74 throw new IllegalStateException("Not attributed properly: " + getCurrentPath().getParentPath().getLeaf()); 75 } 76 } 77 }.scan(cut, null); 78 } 79 } 80} 81