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 }