1/*
2 * Copyright (c) 2009, 2015, 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 */
23
24import java.io.*;
25import java.net.*;
26import javax.tools.*;
27import java.util.*;
28
29import com.sun.source.tree.CompilationUnitTree;
30import com.sun.source.util.JavacTask;
31import com.sun.tools.javac.api.JavacTool;
32import com.sun.tools.javac.tree.JCTree;
33import com.sun.tools.javac.tree.Pretty;
34
35/**
36 * @test
37 * @bug 6902720
38 * @summary javac pretty printer does not handle enums correctly
39 * @modules jdk.compiler/com.sun.tools.javac.api
40 *          jdk.compiler/com.sun.tools.javac.file
41 *          jdk.compiler/com.sun.tools.javac.tree
42 */
43
44public class Test {
45
46    public static void main(String[] args) throws Exception {
47        Test t = new Test();
48        t.run("E1.java", "E2.java");
49    }
50
51    void run(String... args) throws Exception {
52        File testSrcDir = new File(System.getProperty("test.src"));
53        for (String arg: args) {
54            test(new File(testSrcDir, arg));
55        }
56    }
57
58    void test(File test) throws Exception {
59        JavacTool tool1 = JavacTool.create();
60        try (StandardJavaFileManager fm = tool1.getStandardFileManager(null, null, null)) {
61            Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(test);
62
63            // parse test file into a tree, and write it out to a stringbuffer using Pretty
64            JavacTask t1 = tool1.getTask(null, fm, null, null, null, files);
65            StringWriter sw = new StringWriter();
66            PrintWriter pw = new PrintWriter(sw);
67            Iterable<? extends CompilationUnitTree> trees = t1.parse();
68            for (CompilationUnitTree tree: trees) {
69                new Pretty(pw, true).printExpr((JCTree) tree);
70            }
71            pw.close();
72
73            final String out = sw.toString();
74            System.err.println("generated code:\n" + out + "\n");
75
76            // verify the generated code is valid Java by compiling it
77            JavacTool tool2 = JavacTool.create();
78            JavaFileObject fo = new SimpleJavaFileObject(URI.create("output"), JavaFileObject.Kind.SOURCE) {
79                @Override
80                public CharSequence getCharContent(boolean ignoreEncodingErrors) {
81                    return out;
82                }
83            };
84            JavacTask t2 = tool2.getTask(null, fm, null, null, null, Collections.singleton(fo));
85            boolean ok = t2.call();
86            if (!ok)
87                throw new Exception("compilation of generated code failed");
88
89            File expectedClass = new File(test.getName().replace(".java", ".class"));
90            if (!expectedClass.exists())
91                throw new Exception(expectedClass + " not found");
92        }
93    }
94}
95
96