1 /*
   2  * Copyright (c) 2016, 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 /*
  25  * @test 8152771
  26  * @summary test tree access of module declarations
  27  * @library /tools/lib
  28  * @modules
  29  *      jdk.compiler/com.sun.tools.javac.api
  30  *      jdk.compiler/com.sun.tools.javac.main
  31  *      jdk.jdeps/com.sun.tools.javap
  32  * @build toolbox.ToolBox ModuleTestBase
  33  * @run main ModuleInfoTreeAccess
  34  */
  35 
  36 import java.nio.file.Path;
  37 
  38 import javax.lang.model.element.ModuleElement;
  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.doctree.DocCommentTree;
  45 import com.sun.source.util.JavacTask;
  46 import com.sun.source.util.TreePath;
  47 import com.sun.tools.javac.api.JavacTrees;
  48 
  49 
  50 public class ModuleInfoTreeAccess extends ModuleTestBase {
  51     public static void main(String... args) throws Exception {
  52         ModuleInfoTreeAccess t = new ModuleInfoTreeAccess();
  53         t.runTests();
  54     }
  55 
  56     private void assertNotNull(String prefix, Object actual) {
  57         if (actual == null) {
  58             throw new AssertionError(prefix + ": unexpected null! ");
  59         }
  60     }
  61 
  62     @Test
  63     public void testTreePathForModuleDecl(Path base) throws Exception {
  64 
  65         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
  66         try (StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null)) {
  67             Path src = base.resolve("src");
  68             tb.writeJavaFiles(src, "/** Test module */ module m1x {}");
  69 
  70             Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(findJavaFiles(src));
  71             JavacTask task = (JavacTask) compiler.getTask(null, fm, null, null, null, files);
  72 
  73             task.analyze();
  74             JavacTrees trees = JavacTrees.instance(task);
  75             ModuleElement mdle = (ModuleElement) task.getElements().getModuleElement("m1x");
  76 
  77             TreePath path = trees.getPath(mdle);
  78             assertNotNull("path", path);
  79 
  80             ModuleElement mdle1 = (ModuleElement) trees.getElement(path);
  81             assertNotNull("mdle1", mdle1);
  82 
  83             DocCommentTree docCommentTree = trees.getDocCommentTree(mdle);
  84             assertNotNull("docCommentTree", docCommentTree);
  85         }
  86     }
  87 
  88     @Test
  89     public void testTreePathForModuleDeclWithImport(Path base) throws Exception {
  90         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
  91         try (StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null)) {
  92             Path src = base.resolve("src");
  93             tb.writeJavaFiles(src, "import java.lang.Deprecated; /** Test module */ @Deprecated module m1x {}");
  94 
  95             Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(findJavaFiles(src));
  96             JavacTask task = (JavacTask) compiler.getTask(null, fm, null, null, null, files);
  97 
  98             task.analyze();
  99             JavacTrees trees = JavacTrees.instance(task);
 100             ModuleElement mdle = (ModuleElement) task.getElements().getModuleElement("m1x");
 101 
 102             TreePath path = trees.getPath(mdle);
 103             assertNotNull("path", path);
 104 
 105             ModuleElement mdle1 = (ModuleElement) trees.getElement(path);
 106             assertNotNull("mdle1", mdle1);
 107 
 108             DocCommentTree docCommentTree = trees.getDocCommentTree(mdle);
 109             assertNotNull("docCommentTree", docCommentTree);
 110         }
 111     }
 112 }