/*

 * Copyright (c) 2009, 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.

 */

import java.io.*;

import java.net.*;

import javax.tools.*;

import java.util.*;

import com.sun.source.tree.CompilationUnitTree;

import com.sun.source.util.JavacTask;

import com.sun.tools.javac.api.JavacTool;

import com.sun.tools.javac.tree.JCTree;

import com.sun.tools.javac.tree.Pretty;

/**

 * @test

 * @bug 6902720

 * @summary javac pretty printer does not handle enums correctly

 */

public class Test {

    public static void main(String[] args) throws Exception {

        Test t = new Test();

        t.run("E1.java", "E2.java");

    }

    void run(String... args) throws Exception {

        File testSrcDir = new File(System.getProperty("test.src"));

        for (String arg: args) {

            test(new File(testSrcDir, arg));

        }

    }

    void test(File test) throws Exception {

        JavacTool tool1 = JavacTool.create();

        StandardJavaFileManager fm = tool1.getStandardFileManager(null, null, null);

        Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(test);

        // parse test file into a tree, and write it out to a stringbuffer using Pretty

        JavacTask t1 = tool1.getTask(null, fm, null, null, null, files);

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        Iterable<? extends CompilationUnitTree> trees = t1.parse();

        for (CompilationUnitTree tree: trees) {

            new Pretty(pw, true).printExpr((JCTree) tree);

        }

        pw.close();

        final String out = sw.toString();

        System.err.println("generated code:\n" + out + "\n");

        // verify the generated code is valid Java by compiling it

        JavacTool tool2 = JavacTool.create();

        JavaFileObject fo = new SimpleJavaFileObject(URI.create("output"), JavaFileObject.Kind.SOURCE) {

            @Override

            public CharSequence getCharContent(boolean ignoreEncodingErrors) {

                return out;

            }

        };

        JavacTask t2 = tool2.getTask(null, fm, null, null, null, Collections.singleton(fo));

        boolean ok = t2.call();

        if (!ok)

            throw new Exception("compilation of generated code failed");

        File expectedClass = new File(test.getName().replace(".java", ".class"));

        if (!expectedClass.exists())

            throw new Exception(expectedClass + " not found");

    }

}