author | vromero |
Fri, 02 Feb 2018 07:43:54 -0500 | |
changeset 48721 | ef3557eb4306 |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2018, 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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import com.sun.source.tree.CompilationUnitTree; |
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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.Trees; |
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import com.sun.tools.javac.api.JavacTaskImpl; |
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import com.sun.tools.javac.api.JavacTool; |
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import com.sun.tools.javac.util.Context; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Iterator; |
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import java.util.List; |
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import javax.lang.model.element.Element; |
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import javax.tools.Diagnostic; |
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import javax.tools.DiagnosticCollector; |
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import javax.tools.JavaCompiler; |
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import javax.tools.JavaFileManager; |
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import javax.tools.JavaFileObject; |
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import javax.tools.ToolProvider; |
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import javax.tools.StandardJavaFileManager; |
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import com.sun.source.tree.ImportTree; |
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import java.util.Collections; |
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import java.io.PrintWriter; |
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import com.sun.source.tree.VariableTree; |
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import static javax.tools.StandardLocation.CLASS_OUTPUT; |
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/* |
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* @test |
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* @bug 8067384 8068488 |
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* @summary Verify that JavacParser can be extended |
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* @modules jdk.compiler/com.sun.tools.javac.api |
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* jdk.compiler/com.sun.tools.javac.code |
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* jdk.compiler/com.sun.tools.javac.parser |
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* jdk.compiler/com.sun.tools.javac.tree |
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* jdk.compiler/com.sun.tools.javac.util |
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* jdk.compiler/com.sun.tools.javac.resources |
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*/ |
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public class JavacExtensionTest { |
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public static void main(String[] args) throws Exception { |
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PrintWriter pw = new PrintWriter("trialSource.java", "UTF-8"); |
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pw.println("int x = 9;"); |
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pw.close(); |
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List<? extends Tree> defs = parse("trialSource.java"); |
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if (defs.size() != 1) { |
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throw new AssertionError("Expected only one def, got: " + defs.size()); |
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} |
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Tree tree = defs.get(0); |
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if (tree instanceof VariableTree) { |
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System.out.println("Passes! --- " + tree); |
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} else { |
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throw new AssertionError("Expected VariableTree, got: " + tree); |
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} |
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} |
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static List<? extends Tree> parse(String srcfile) throws Exception { |
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JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); |
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StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null); |
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Iterable<? extends JavaFileObject> fileObjects = fileManager.getJavaFileObjects(srcfile); |
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String classPath = System.getProperty("java.class.path"); |
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List<String> options = Arrays.asList("-classpath", classPath); |
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DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<>(); |
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Context context = new Context(); |
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JavacTaskImpl task = (JavacTaskImpl) ((JavacTool) compiler).getTask(null, null, |
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diagnostics, options, null, fileObjects, context); |
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TrialParserFactory.instance(context); |
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Iterable<? extends CompilationUnitTree> asts = task.parse(); |
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Iterator<? extends CompilationUnitTree> it = asts.iterator(); |
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if (it.hasNext()) { |
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CompilationUnitTree cut = it.next(); |
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return cut.getTypeDecls(); |
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} else { |
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throw new AssertionError("Expected compilation unit"); |
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} |
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} |
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} |