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