Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/api/TestTreePath.java
test/tools/javac/api/TestTreePath.java
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- 664edca41e34
- child 554
- 9d9f26857129
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| 1 /* | |
| 2 * Copyright 2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 6473148 | |
| 27 * @summary TreePath.iterator() throws NPE | |
| 28 */ | |
| 29 import java.io.*; | |
| 30 import java.util.Arrays; | |
| 31 import java.util.Iterator; | |
| 32 import java.util.Set; | |
| 33 | |
| 34 import javax.annotation.processing.*; | |
| 35 import javax.lang.model.SourceVersion; | |
| 36 import javax.lang.model.element.Element; | |
| 37 import javax.lang.model.element.TypeElement; | |
| 38 import javax.lang.model.util.ElementFilter; | |
| 39 import javax.tools.JavaCompiler; | |
| 40 import javax.tools.JavaFileObject; | |
| 41 import javax.tools.StandardJavaFileManager; | |
| 42 import javax.tools.ToolProvider; | |
| 43 | |
| 44 import com.sun.source.tree.Tree; | |
| 45 import com.sun.source.util.*; | |
| 46 | |
| 47 @SupportedAnnotationTypes("*") | |
| 48 public class TestTreePath extends AbstractProcessor { | |
| 49 | |
| 50 @Override | |
| 51 public boolean process(Set<? extends TypeElement> annotations, | |
| 52 RoundEnvironment roundEnv) { | |
| 53 final Trees trees = Trees.instance(this.processingEnv); | |
| 54 for (Element element : ElementFilter.typesIn(roundEnv.getRootElements())) { | |
| 55 checkTreePath(trees, element, 2); | |
| 56 for (Element member : element.getEnclosedElements()) | |
| 57 checkTreePath(trees, member, 3); | |
| 58 } | |
| 59 return true; | |
| 60 } | |
| 61 | |
| 62 private void checkTreePath(Trees trees, Element element, int expectedLength) { | |
| 63 TreePath path = trees.getPath(element); | |
| 64 assert path != null; | |
| 65 | |
| 66 int enhancedLength = 0; | |
| 67 for (Tree tree : path) | |
| 68 ++enhancedLength; | |
| 69 | |
| 70 if (enhancedLength != expectedLength) | |
| 71 throw new RuntimeException("found path length is wrong"); | |
| 72 | |
| 73 int normalLoopLength = 0; | |
| 74 Iterator<Tree> iter = path.iterator(); | |
| 75 while (iter.hasNext()) { | |
| 76 iter.next(); | |
| 77 ++normalLoopLength; | |
| 78 } | |
| 79 if (normalLoopLength != expectedLength) | |
| 80 throw new RuntimeException("found path length is wrong"); | |
| 81 | |
| 82 TreePath curr = path; | |
| 83 // using getParent | |
| 84 int whileLoopLength = 0; | |
| 85 while (curr != null) { | |
| 86 ++whileLoopLength; | |
| 87 curr = curr.getParentPath(); | |
| 88 } | |
| 89 if (whileLoopLength != expectedLength) | |
| 90 throw new RuntimeException("found path length is wrong"); | |
| 91 } | |
| 92 | |
| 93 @Override | |
| 94 public SourceVersion getSupportedSourceVersion() { | |
| 95 return SourceVersion.latest(); | |
| 96 } | |
| 97 | |
| 98 File writeTestFile() throws IOException { | |
| 99 File f = new File("Test.java"); | |
| 100 PrintWriter out = new PrintWriter(new FileWriter(f)); | |
| 101 out.println("class Test { void method() { } }"); | |
| 102 out.close(); | |
| 103 return f; | |
| 104 } | |
| 105 | |
| 106 public void run() throws IOException { | |
| 107 JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); | |
| 108 StandardJavaFileManager fileManager | |
| 109 = compiler.getStandardFileManager(null, null, null); | |
| 110 Iterable<? extends JavaFileObject> tests | |
| 111 = fileManager.getJavaFileObjects(writeTestFile()); | |
| 112 | |
| 113 JavaCompiler.CompilationTask task = | |
| 114 ToolProvider.getSystemJavaCompiler().getTask( | |
| 115 null, null, null, | |
| 116 Arrays.asList("-processor", this.getClass().getName()), null, | |
| 117 tests); | |
| 118 task.call(); | |
| 119 } | |
| 120 | |
| 121 public static void main(String[] args) throws IOException { | |
| 122 new TestTreePath().run(); | |
| 123 } | |
| 124 } |
