/*

 * 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

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 */

/*

 * @test

 * @bug 6570730

 * @summary com.sun.source.tree.ModifiersTree.getFlags() should return class type

 */

import java.io.*;

import java.util.*;

import javax.tools.*;

import com.sun.source.tree.*;

import com.sun.source.util.*;

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

public class ClassTreeTest {

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

        new ClassTreeTest().run();

    }

    void run() throws Exception {

        JavacTool tool = JavacTool.create();

        try (StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null)) {

            List<String> opts = Collections.<String>emptyList();

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

            File thisFile = new File(testSrc, ClassTreeTest.class.getSimpleName() + ".java");

            Iterable<? extends JavaFileObject> fos = fm.getJavaFileObjects(thisFile);

            JavacTask task = tool.getTask(null, fm, null, opts, null, fos);

            for (CompilationUnitTree cu: task.parse()) {

                check(cu, "CLASS", Tree.Kind.CLASS);

                check(cu, "INTERFACE", Tree.Kind.INTERFACE);

                check(cu, "ENUM", Tree.Kind.ENUM);

                check(cu, "ANNOTATION_TYPE", Tree.Kind.ANNOTATION_TYPE);

            }

            int expected = 4;

            if (checks != expected)

                error("Unexpected number of checks performed; expected: " + expected + ", found: " + checks);

            if (errors > 0)

                throw new Exception(errors + " errors found");

        }

    }

    void check(CompilationUnitTree cu, String name, Tree.Kind k) {

        checks++;

        TreeScanner<ClassTree,String> s = new TreeScanner<ClassTree,String>() {

            @Override

            public ClassTree visitClass(ClassTree c, String name) {

                if (c.getSimpleName().toString().equals(name))

                    return c;

                else

                    return super.visitClass(c, name);

            }

            @Override

            public ClassTree reduce(ClassTree t1, ClassTree t2) {

                return (t1 != null ? t1 : t2);

            }

        };

        ClassTree c = s.scan(cu, name);

        if (c == null)

            error("Can't find node named " + name);

        else if (c.getKind() != k)

            error("Unexpected kind for node named " + name + ": expected: " + k + ", found: " + c.getKind());

    }

    void error(String msg) {

        System.err.println("Error: " + msg);

        errors++;

    }

    int checks;

    int errors;

    class CLASS { }

    interface INTERFACE { }

    enum ENUM { }

    @interface ANNOTATION_TYPE { }

}