107 lines
4.2 KiB
Java
107 lines
4.2 KiB
Java
/*
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* Copyright (c) 2010, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8008174 8227923
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* @summary proper source positions for doc comments
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* @modules jdk.compiler
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* @build TestPosition
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* @compile/ref=TestPosition.out -processor TestPosition -proc:only TestPositionSource.java
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*/
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import com.sun.source.doctree.DocCommentTree;
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import com.sun.source.doctree.DocTree;
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import com.sun.source.tree.MethodTree;
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import com.sun.source.util.DocSourcePositions;
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import com.sun.source.util.DocTreeScanner;
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import com.sun.source.util.DocTrees;
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import com.sun.source.util.TreePath;
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import com.sun.source.util.TreePathScanner;
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import java.io.IOException;
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import java.util.Set;
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import javax.annotation.processing.*;
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import javax.lang.model.*;
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import javax.lang.model.element.*;
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@SupportedAnnotationTypes("*")
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public class TestPosition extends AbstractProcessor {
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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TypeElement source = processingEnv.getElementUtils().getTypeElement("TestPositionSource");
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if (source == null) throw new IllegalStateException();
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if (!roundEnv.getRootElements().contains(source)) return false;
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final DocTrees trees = DocTrees.instance(processingEnv);
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final TreePath testElement = trees.getPath(source);
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if (testElement == null) throw new IllegalStateException();
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String code;
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try {
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code = testElement.getCompilationUnit().getSourceFile().getCharContent(false).toString();
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} catch ( IOException ex) {
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throw new IllegalStateException(ex);
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}
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new TreePathScanner<Void, Void>() {
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@Override public Void visitMethod(MethodTree node, Void p) {
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final DocCommentTree docCommentTree = trees.getDocCommentTree(getCurrentPath());
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if (docCommentTree != null) {
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System.out.println(node.getName() + ":");
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new DocTreeScanner<Void, Void>() {
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@Override public Void scan(DocTree node, Void p) {
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if (node != null) {
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DocSourcePositions sp = trees.getSourcePositions();
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int start = (int) sp.getStartPosition(testElement.getCompilationUnit(), docCommentTree, node);
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int end = (int) sp.getEndPosition(testElement.getCompilationUnit(), docCommentTree, node);
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String snippet = code.substring(start, end).replace(" \n", "!trailing-whitespace!\n");
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if (snippet.endsWith(" ")) {
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snippet = snippet.substring(0, snippet.length() - 1) + "!trailing-whitespace!";
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}
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System.out.println(node.getKind().name() + ":" + snippet);
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}
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return super.scan(node, p);
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}
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}.scan(docCommentTree, null);
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}
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return super.visitMethod(node, p);
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}
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}.scan(testElement, null);
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return false;
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}
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@Override
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public SourceVersion getSupportedSourceVersion() {
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return SourceVersion.latest();
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}
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}
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