Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 /*

  * @test

  * @bug 8009724

  * @summary adding DocTreePath and DocTreePathScanner

  */

 import com.sun.source.doctree.DocCommentTree;

 import com.sun.source.doctree.DocTree;

 import com.sun.source.doctree.DocTree.Kind;

 import com.sun.source.doctree.DocTreeVisitor;

 import com.sun.source.tree.ClassTree;

 import com.sun.source.tree.CompilationUnitTree;

 import com.sun.source.tree.MethodTree;

 import com.sun.source.tree.Tree;

 import com.sun.source.tree.VariableTree;

 import com.sun.source.util.DocTreePath;

 import com.sun.source.util.DocTreePathScanner;

 import com.sun.source.util.DocTreeScanner;

 import com.sun.source.util.DocTrees;

 import com.sun.source.util.JavacTask;

 import com.sun.source.util.TreePath;

 import com.sun.source.util.TreePathScanner;

 import com.sun.tools.javac.api.JavacTool;

 import java.io.File;

 import java.util.ArrayList;

 import java.util.List;

 import javax.lang.model.element.Name;

 import javax.tools.JavaFileObject;

 import javax.tools.StandardJavaFileManager;

 public class DocTreePathScannerTest {

     public static void main(String... args) throws Exception {

         DocTreePathScannerTest t = new DocTreePathScannerTest();

         t.run();

     }

     void run() throws Exception {

         List<File> files = new ArrayList<File>();

         File testSrc = new File(System.getProperty("test.src"));

         for (File f: testSrc.listFiles()) {

             if (f.isFile() && f.getName().endsWith(".java"))

                 files.add(f);

         }

         JavacTool javac = JavacTool.create();

         StandardJavaFileManager fm = javac.getStandardFileManager(null, null, null);

         Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjectsFromFiles(files);

         JavacTask t = javac.getTask(null, fm, null, null, null, fos);

         DocTrees trees = DocTrees.instance(t);

         Iterable<? extends CompilationUnitTree> units = t.parse();

         DeclScanner ds = new DeclScanner(trees);

         for (CompilationUnitTree unit: units) {

             ds.scan(unit, null);

         }

         if (errors > 0)

             throw new Exception(errors + " errors occurred");

     }

     void error(String msg) {

         System.err.println("Error: " + msg);

         errors++;

     }

     int errors;

     class DeclScanner extends TreePathScanner<Void, Void> {

         DocTrees trees;

         DocTreePathScanner<Void,Void> cs;

         DeclScanner(DocTrees trees) {

             this.trees = trees;

             cs = new CommentPathScanner();

         }

         @Override

         public Void visitClass(ClassTree tree, Void ignore) {

             super.visitClass(tree, ignore);

             visitDecl(tree, tree.getSimpleName());

             return null;

         }

         @Override

         public Void visitMethod(MethodTree tree, Void ignore) {

             super.visitMethod(tree, ignore);

             visitDecl(tree, tree.getName());

             return null;

         }

         @Override

         public Void visitVariable(VariableTree tree, Void ignore) {

             super.visitVariable(tree, ignore);

             visitDecl(tree, tree.getName());

             return null;

         }

         void visitDecl(Tree tree, Name name) {

             TreePath path = getCurrentPath();

             DocCommentTree dc = trees.getDocCommentTree(path);

             if (dc != null)

                 cs.scan(new DocTreePath(path, dc), null);

         }

     }

     class CommentPathScanner extends DocTreePathScanner<Void, Void> {

         CommentPathScanner() {}

         @Override

         public Void scan(final DocTree tree, Void ignore) {

             if (tree != null) {

                 DocTree previous = null;

                 for (DocTree current : getCurrentPath()) {

                     if (previous != null) {

                         final List<DocTree> children = new ArrayList<>();

                         current.accept(new DocTreeScanner<Void, Void>() {

                             @Override public Void scan(DocTree node, Void p) {

                                 children.add(node);

                                 return null;

                             }

                         }, null);

                         if (!children.contains(previous)) {

                             error("Invalid DocTreePath for: " + tree);

                         }

                     }

                     previous = current;

                 }

             }

             return super.scan(tree, ignore);

         }

     }

 }