| /* |
| * Copyright (c) 2014, 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 8031967 |
| * @summary Ensure javac can handle very deeply nested chain of method invocations occurring as |
| * a parameter to other method invocations. |
| * @run main T8031967 |
| */ |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import javax.tools.DiagnosticListener; |
| import javax.tools.JavaCompiler; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| import javax.tools.ToolProvider; |
| |
| import com.sun.source.util.JavacTask; |
| |
| public class T8031967 { |
| |
| public static void main(String... args) throws IOException { |
| new T8031967().run(); |
| } |
| |
| final int depth = 50; |
| |
| private void run() throws IOException { |
| runTestCase(true); |
| runTestCase(false); |
| } |
| |
| private void runTestCase(boolean withErrors) throws IOException { |
| StringBuilder code = new StringBuilder(); |
| |
| code.append("public class Test {\n" + |
| " private void test() {\n" + |
| " GroupLayout l = new GroupLayout();\n" + |
| " l.setHorizontalGroup(\n"); |
| |
| gen(code, depth); |
| code.append(" );\n" + |
| " }\n"); |
| if (!withErrors) { |
| code.append(" class GroupLayout {\n" + |
| " ParallelGroup createParallelGroup() {return null;}\n" + |
| " ParallelGroup createParallelGroup(int i) {return null;}\n" + |
| " ParallelGroup createParallelGroup(int i, int j) {return null;}\n" + |
| " void setHorizontalGroup(Group g) { }\n" + |
| " }\n" + |
| " \n" + |
| " class Group {\n" + |
| " Group addGroup(Group g) { return this; }\n" + |
| " Group addGroup(int i, Group g) { return this; }\n" + |
| " Group addGap(int i) { return this; }\n" + |
| " Group addGap(long l) { return this; }\n" + |
| " Group addGap(int i, int j) { return this; }\n" + |
| " Group addComponent(Object c) { return this; }\n" + |
| " Group addComponent(int i, Object c) { return this; }\n" + |
| " }\n" + |
| " class ParallelGroup extends Group {\n" + |
| " Group addGroup(Group g) { return this; }\n" + |
| " Group addGroup(int i, Group g) { return this; }\n" + |
| " Group addGap(int i) { return this; }\n" + |
| " Group addGap(int i, int j) { return this; }\n" + |
| " Group addComponent(Object c) { return this; }\n" + |
| " Group addComponent(int i, Object c) { return this; }\n" + |
| " }\n"); |
| } |
| |
| code.append("}\n"); |
| |
| JavaSource source = new JavaSource(code.toString()); |
| List<JavaSource> sourceList = Arrays.asList(source); |
| JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); |
| DiagnosticListener<JavaFileObject> noErrors = (diagnostic) -> { |
| throw new IllegalStateException("Should not produce errors: " + diagnostic); |
| }; |
| JavacTask task = (JavacTask) compiler.getTask(null, null, withErrors ? null : noErrors, |
| null, null, sourceList); |
| |
| task.analyze(); |
| } |
| |
| private void gen(StringBuilder code, int depth) { |
| code.append("l.createParallelGroup()\n"); |
| if (depth > 0) { |
| code.append(".addGroup(\n"); |
| gen(code, depth - 1); |
| code.append(")"); |
| } |
| |
| code.append(".addGap(1)\n" + |
| ".addComponent(new Object())\n" + |
| ".addGap(1)\n" + |
| ".addComponent(new Object())"); |
| } |
| |
| class JavaSource extends SimpleJavaFileObject { |
| |
| final String code; |
| public JavaSource(String code) { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| this.code = code; |
| } |
| |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return code; |
| } |
| } |
| } |