81 lines
3.0 KiB
Java
81 lines
3.0 KiB
Java
/*
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* Copyright (c) 2006, 2015, 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 6471599
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* @summary Type of rhs cannot be obtained when assigning to erroneous symbol
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* @author Peter von der Ah\u00e9
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* @modules jdk.compiler/com.sun.tools.javac.util
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* @compile Main.java
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* @run main Main
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*/
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import com.sun.source.tree.AssignmentTree;
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import com.sun.source.tree.CompilationUnitTree;
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import com.sun.source.util.JavacTask;
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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 com.sun.source.util.Trees;
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import com.sun.tools.javac.util.List;
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import java.io.IOException;
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import java.net.URI;
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import javax.lang.model.type.TypeKind;
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import javax.tools.JavaCompiler;
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import javax.tools.JavaFileObject;
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import javax.tools.SimpleJavaFileObject;
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import javax.tools.ToolProvider;
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public class Main {
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static class MyFileObject extends SimpleJavaFileObject {
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public MyFileObject() {
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super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
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}
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public CharSequence getCharContent(boolean ignoreEncodingErrors) {
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return "public class Test { { x = java.util.Collections.emptySet(); } }";
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}
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}
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static Trees trees;
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public static void main(String[] args) throws IOException {
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JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
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JavacTask task = (JavacTask) compiler.getTask(null, null, null, null, null, List.of(new MyFileObject()));
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trees = Trees.instance(task);
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Iterable<? extends CompilationUnitTree> asts = task.parse();
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task.analyze();
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for (CompilationUnitTree ast : asts) {
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new MyVisitor().scan(ast, null);
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}
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}
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static class MyVisitor extends TreePathScanner<Void,Void> {
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@Override
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public Void visitAssignment(AssignmentTree node, Void ignored) {
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TreePath path = TreePath.getPath(getCurrentPath(), node.getExpression());
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if (trees.getTypeMirror(path).getKind() == TypeKind.ERROR)
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throw new AssertionError(path.getLeaf());
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return null;
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}
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}
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}
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