107 lines
4.0 KiB
Java
107 lines
4.0 KiB
Java
/*
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* Copyright (c) 2017, 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 8231827
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* @summary Check proper positions.
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* @build PatternMatchPosTest
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* @compile/ref=PatternMatchPosTest.out -processor PatternMatchPosTest -Xlint:unchecked -XDrawDiagnostics PatternMatchPosTestData.java
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*/
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import java.io.IOException;
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import java.util.Set;
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import javax.annotation.processing.AbstractProcessor;
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import javax.annotation.processing.RoundEnvironment;
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import javax.annotation.processing.SupportedAnnotationTypes;
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import javax.lang.model.SourceVersion;
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import javax.lang.model.element.TypeElement;
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import com.sun.source.tree.IfTree;
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import com.sun.source.tree.Tree;
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import com.sun.source.util.SourcePositions;
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import com.sun.source.util.TreePath;
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import com.sun.source.util.TreeScanner;
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import com.sun.source.util.Trees;
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import javax.tools.Diagnostic;
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@SupportedAnnotationTypes("*")
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public class PatternMatchPosTest extends AbstractProcessor {
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int round;
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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if (round++ != 0)
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return false;
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try {
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TypeElement data = processingEnv.getElementUtils().getTypeElement("PatternMatchPosTestData");
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Trees trees = Trees.instance(processingEnv);
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SourcePositions sp = trees.getSourcePositions();
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TreePath dataPath = trees.getPath(data);
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String text = dataPath.getCompilationUnit().getSourceFile().getCharContent(true).toString();
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new TreeScanner<Void, Void>() {
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boolean print;
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@Override
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public Void visitIf(IfTree node, Void p) {
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boolean prevPrint = print;
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try {
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print = true;
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scan(node.getCondition(), p);
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} finally {
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print = prevPrint;
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}
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scan(node.getThenStatement(), p);
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scan(node.getElseStatement(), p);
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return null;
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}
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@Override
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public Void scan(Tree tree, Void p) {
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if (tree == null)
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return null;
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if (print) {
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int start = (int) sp.getStartPosition(dataPath.getCompilationUnit(), tree);
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int end = (int) sp.getEndPosition(dataPath.getCompilationUnit(), tree);
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if (start != (-1) || end != (-1)) {
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processingEnv.getMessager().printNote(text.substring(start, end));
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}
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}
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return super.scan(tree, p);
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}
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}.scan(dataPath.getLeaf(), null);
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return false;
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} catch (IOException ex) {
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throw new IllegalStateException(ex);
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}
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}
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@Override
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public SourceVersion getSupportedSourceVersion() {
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return SourceVersion.latestSupported();
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}
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}
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