| /* |
| * Copyright (c) 2010, 2015, 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 8008174 |
| * @summary proper source positions for doc comments |
| * @modules jdk.compiler |
| * @build TestPosition |
| * @compile/ref=TestPosition.out -processor TestPosition -proc:only TestPositionSource.java |
| */ |
| |
| import com.sun.source.doctree.DocCommentTree; |
| import com.sun.source.doctree.DocTree; |
| import com.sun.source.tree.MethodTree; |
| import com.sun.source.util.DocSourcePositions; |
| import com.sun.source.util.DocTreeScanner; |
| import com.sun.source.util.DocTrees; |
| import com.sun.source.util.TreePath; |
| import com.sun.source.util.TreePathScanner; |
| import java.io.IOException; |
| import java.util.Set; |
| import javax.annotation.processing.*; |
| import javax.lang.model.*; |
| import javax.lang.model.element.*; |
| |
| @SupportedAnnotationTypes("*") |
| public class TestPosition extends AbstractProcessor { |
| |
| @Override |
| public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
| TypeElement source = processingEnv.getElementUtils().getTypeElement("TestPositionSource"); |
| |
| if (source == null) throw new IllegalStateException(); |
| |
| if (!roundEnv.getRootElements().contains(source)) return false; |
| |
| final DocTrees trees = DocTrees.instance(processingEnv); |
| final TreePath testElement = trees.getPath(source); |
| |
| if (testElement == null) throw new IllegalStateException(); |
| |
| String code; |
| |
| try { |
| code = testElement.getCompilationUnit().getSourceFile().getCharContent(false).toString(); |
| } catch ( IOException ex) { |
| throw new IllegalStateException(ex); |
| } |
| |
| new TreePathScanner<Void, Void>() { |
| @Override public Void visitMethod(MethodTree node, Void p) { |
| final DocCommentTree docCommentTree = trees.getDocCommentTree(getCurrentPath()); |
| |
| if (docCommentTree != null) { |
| System.out.println(node.getName() + ":"); |
| new DocTreeScanner<Void, Void>() { |
| @Override public Void scan(DocTree node, Void p) { |
| if (node != null) { |
| DocSourcePositions sp = (DocSourcePositions) trees.getSourcePositions(); //XXX: the cast??? |
| int start = (int) sp.getStartPosition(testElement.getCompilationUnit(), docCommentTree, node); |
| int end = (int) sp.getEndPosition(testElement.getCompilationUnit(), docCommentTree, node); |
| String snippet = code.substring(start, end).replace(" \n", "!trailing-whitespace!\n"); |
| |
| if (snippet.endsWith(" ")) { |
| snippet = snippet.substring(0, snippet.length() - 1) + "!trailing-whitespace!"; |
| } |
| System.out.println(node.getKind().name() + ":" + snippet); |
| } |
| return super.scan(node, p); |
| } |
| }.scan(docCommentTree, null); |
| } |
| |
| return super.visitMethod(node, p); |
| } |
| }.scan(testElement, null); |
| |
| return false; |
| } |
| |
| @Override |
| public SourceVersion getSupportedSourceVersion() { |
| return SourceVersion.latest(); |
| } |
| } |