| /* |
| * Copyright (c) 2010, 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. |
| */ |
| |
| /* @test |
| * @bug 6917288 |
| * @summary Unnamed nested class is not generated |
| * @modules jdk.compiler |
| */ |
| |
| import java.io.*; |
| import java.util.*; |
| |
| public class T6917288 { |
| // refers to kind of reference to an anon inner class that may be generated |
| enum Kind { NONE, FALSE, TRUE, ALWAYS }; |
| |
| public static void main(String... args) throws Exception { |
| new T6917288().run(); |
| } |
| |
| void run() throws Exception { |
| for (Kind k: Kind.values()) { |
| test(k); |
| } |
| |
| if (errors > 0) |
| throw new Exception(errors + " errors occurred"); |
| } |
| |
| /** |
| * Run a test case for Kind k. |
| */ |
| void test(Kind k) throws Exception { |
| System.err.println("Test " + (++count) + ": " + k); |
| File testDir = new File("test" + count); |
| File srcDir = new File(testDir, "src"); |
| srcDir.mkdirs(); |
| File classesDir = new File(testDir, "classes"); |
| classesDir.mkdirs(); |
| |
| List<String> opts = new ArrayList<String>(); |
| opts.add("-d"); |
| opts.add(classesDir.getPath()); |
| |
| File f = writeFile(srcDir, k); |
| int rc = compile(opts, f); |
| if (rc != 0) { |
| error("compilation failed: rc=" + rc); |
| return; |
| } |
| |
| switch (k) { |
| case ALWAYS: |
| case TRUE: |
| check(classesDir, "Test.class", "Test$Inner.class", "Test$1.class"); |
| break; |
| default: |
| check(classesDir, "Test.class", "Test$Inner.class"); |
| } |
| } |
| |
| /** |
| * Compile files with given options. |
| * Display any output from compiler, and return javac return code. |
| */ |
| int compile(List<String> opts, File... files) { |
| List<String> args = new ArrayList<String>(); |
| args.addAll(opts); |
| for (File f: files) |
| args.add(f.getPath()); |
| StringWriter sw = new StringWriter(); |
| PrintWriter pw = new PrintWriter(sw); |
| int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw); |
| pw.close(); |
| String out = sw.toString(); |
| if (out.length() > 0) |
| System.err.println(out); |
| return rc; |
| } |
| |
| /** |
| * Check that a directory contains the expected files. |
| */ |
| void check(File dir, String... paths) { |
| Set<String> found = new TreeSet<String>(Arrays.asList(dir.list())); |
| Set<String> expect = new TreeSet<String>(Arrays.asList(paths)); |
| if (found.equals(expect)) |
| return; |
| for (String f: found) { |
| if (!expect.contains(f)) |
| error("Unexpected file found: " + f); |
| } |
| for (String e: expect) { |
| if (!found.contains(e)) |
| error("Expected file not found: " + e); |
| } |
| } |
| |
| /** |
| * Write source file for test case k. |
| */ |
| File writeFile(File dir, Kind k) throws Exception { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("public class Test {\n"); |
| sb.append(" private Inner inner;\n"); |
| |
| // generate different cases of an anon inner class |
| if (k != Kind.NONE) { |
| sb.append(" private void m() {\n"); |
| sb.append(" "); |
| switch (k) { |
| case FALSE: case TRUE: |
| sb.append("if (" + k.toString().toLowerCase() + ") "); |
| } |
| sb.append("new Runnable() { public void run() { } };\n"); |
| sb.append(" }\n"); |
| } |
| |
| sb.append(" private void init() {\n"); |
| sb.append(" inner = new Inner();\n"); |
| sb.append(" }\n"); |
| sb.append("\n"); |
| sb.append(" private static class Inner {\n"); |
| sb.append(" private Inner() {\n"); |
| sb.append(" }\n"); |
| sb.append(" }\n"); |
| sb.append("}\n"); |
| |
| File f = new File(dir, "Test.java"); |
| FileWriter w = new FileWriter(f); |
| w.write(sb.toString()); |
| w.close(); |
| return f; |
| } |
| |
| /** |
| * Record an error message. |
| */ |
| void error(String msg) { |
| System.err.println(msg); |
| errors++; |
| } |
| |
| int count; |
| int errors; |
| } |