| /* |
| * Copyright (c) 2006, 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 6471599 |
| * @summary Type of rhs cannot be obtained when assigning to erroneous symbol |
| * @author Peter von der Ah\u00e9 |
| * @modules jdk.compiler/com.sun.tools.javac.util |
| * @compile Main.java |
| * @run main Main |
| */ |
| |
| import com.sun.source.tree.AssignmentTree; |
| import com.sun.source.tree.CompilationUnitTree; |
| import com.sun.source.util.JavacTask; |
| import com.sun.source.util.TreePath; |
| import com.sun.source.util.TreePathScanner; |
| import com.sun.source.util.Trees; |
| import com.sun.tools.javac.util.List; |
| import java.io.IOException; |
| import java.net.URI; |
| import javax.lang.model.type.TypeKind; |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import javax.tools.ToolProvider; |
| |
| public class Main { |
| static class MyFileObject extends SimpleJavaFileObject { |
| public MyFileObject() { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| } |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return "public class Test { { x = java.util.Collections.emptySet(); } }"; |
| } |
| } |
| static Trees trees; |
| public static void main(String[] args) throws IOException { |
| JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); |
| JavacTask task = (JavacTask) compiler.getTask(null, null, null, null, null, List.of(new MyFileObject())); |
| trees = Trees.instance(task); |
| Iterable<? extends CompilationUnitTree> asts = task.parse(); |
| task.analyze(); |
| for (CompilationUnitTree ast : asts) { |
| new MyVisitor().scan(ast, null); |
| } |
| } |
| |
| static class MyVisitor extends TreePathScanner<Void,Void> { |
| @Override |
| public Void visitAssignment(AssignmentTree node, Void ignored) { |
| TreePath path = TreePath.getPath(getCurrentPath(), node.getExpression()); |
| if (trees.getTypeMirror(path).getKind() == TypeKind.ERROR) |
| throw new AssertionError(path.getLeaf()); |
| return null; |
| } |
| |
| } |
| } |