jdk8-mips64-public/langtools: test/tools/javac/6917288/T6917288.java@0b6cc4ea670f

     1 /*

     2  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /* @test

    25  * @bug 6917288

    26  * @summary Unnamed nested class is not generated

    27  */

    29 import java.io.*;

    30 import java.util.*;

    32 public class T6917288 {

    33     // refers to kind of reference to an anon inner class that may be generated

    34     enum Kind { NONE, FALSE, TRUE, ALWAYS };

    36     public static void main(String... args) throws Exception {

    37         new T6917288().run();

    38     }

    40     void run() throws Exception {

    41         for (Kind k: Kind.values()) {

    42             test(k);

    43         }

    45         if (errors > 0)

    46             throw new Exception(errors + " errors occurred");

    47     }

    49     /**

    50      *  Run a test case for Kind k.

    51      */

    52     void test(Kind k) throws Exception {

    53         System.err.println("Test " + (++count) + ": " + k);

    54         File testDir = new File("test" + count);

    55         File srcDir = new File(testDir, "src");

    56         srcDir.mkdirs();

    57         File classesDir = new File(testDir, "classes");

    58         classesDir.mkdirs();

    60         List<String> opts = new ArrayList<String>();

    61         opts.add("-d");

    62         opts.add(classesDir.getPath());

    64         File f = writeFile(srcDir, k);

    65         int rc = compile(opts, f);

    66         if (rc != 0) {

    67             error("compilation failed: rc=" + rc);

    68             return;

    69         }

    71         check(classesDir, "Test.class", "Test$Inner.class", "Test$1.class");

    72     }

    74     /**

    75      *  Compile files with given options.

    76      *  Display any output from compiler, and return javac return code.

    77      */

    78     int compile(List<String> opts, File... files) {

    79         List<String> args = new ArrayList<String>();

    80         args.addAll(opts);

    81         for (File f: files)

    82             args.add(f.getPath());

    83         StringWriter sw = new StringWriter();

    84         PrintWriter pw = new PrintWriter(sw);

    85         int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);

    86         pw.close();

    87         String out = sw.toString();

    88         if (out.length() > 0)

    89             System.err.println(out);

    90         return rc;

    91     }

    93     /**

    94      *  Check that a directory contains the expected files.

    95      */

    96     void check(File dir, String... paths) {

    97         Set<String> found = new TreeSet<String>(Arrays.asList(dir.list()));

    98         Set<String> expect = new TreeSet<String>(Arrays.asList(paths));

    99         if (found.equals(expect))

   100             return;

   101         for (String f: found) {

   102             if (!expect.contains(f))

   103                 error("Unexpected file found: " + f);

   104         }

   105         for (String e: expect) {

   106             if (!found.contains(e))

   107                 error("Expected file not found: " + e);

   108         }

   109     }

   111     /**

   112      *  Write source file for test case k.

   113      */

   114     File writeFile(File dir, Kind k) throws Exception {

   115         StringBuilder sb = new StringBuilder();

   116         sb.append("public class Test {\n");

   117         sb.append("    private Inner inner;\n");

   119         // generate different cases of an anon inner class

   120         if (k != Kind.NONE) {

   121             sb.append("    private void m() {\n");

   122             sb.append("        ");

   123             switch (k) {

   124                 case FALSE: case TRUE:

   125                     sb.append("if (" + k.toString().toLowerCase() + ") ");

   126             }

   127             sb.append("new Runnable() { public void run() { } };\n");

   128             sb.append("    }\n");

   129         }

   131         sb.append("    private void init() {\n");

   132         sb.append("        inner = new Inner();\n");

   133         sb.append("    }\n");

   134         sb.append("\n");

   135         sb.append("    private static class Inner {\n");

   136         sb.append("        private Inner() {\n");

   137         sb.append("        }\n");

   138         sb.append("    }\n");

   139         sb.append("}\n");

   141         File f = new File(dir, "Test.java");

   142         FileWriter w = new FileWriter(f);

   143         w.write(sb.toString());

   144         w.close();

   145         return f;

   146     }

   148     /**

   149      *  Record an error message.

   150      */

   151     void error(String msg) {

   152         System.err.println(msg);

   153         errors++;

   154     }

   156     int count;

   157     int errors;

   158 }

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