/*

 * 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 8042345

 * @summary getDocComment() fails for doc comments on PackageElement found in package-info.java

 */

import com.sun.source.util.JavacTask;

import java.io.*;

import java.util.*;

import javax.annotation.processing.*;

import javax.lang.model.*;

import javax.lang.model.element.*;

import javax.lang.model.util.*;

import javax.tools.*;

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

        String[] opts = {

            "-implicit:none",

            "-processor", TestPackageInfoComments.class.getName(),

        };

        File[] files = {

            new File(System.getProperty("test.src"), "p/package-info.java")

        };

        run_test(opts, files);

    }

    static void run_test(String[] opts, File[] files) throws IOException {

        DiagnosticListener<JavaFileObject> dl = new DiagnosticListener<JavaFileObject>() {

            public void report(Diagnostic diagnostic) {

                throw new Error(diagnostic.toString());

            }

        };

        JavaCompiler c = ToolProvider.getSystemJavaCompiler();

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

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

        JavacTask t = (JavacTask) c.getTask(null, fm, dl, Arrays.asList(opts), null, units);

        t.parse();

        t.analyze();

    }

    // -- Annotation processor: Check all PackageDecl's have a doc comment

    @Override

    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

        for (Element e: roundEnv.getRootElements())

            new TestElementScanner().scan(e);

        return true;

    }

        @Override

        public Void visitPackage(PackageElement e, Void v) {

            if (elements.getDocComment(e) == null)

                messager.printMessage(Diagnostic.Kind.ERROR, "doc comment is null", e);

            return v;

        }

    }

}