/*

 * 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 8080842

 * @summary Ensure Scope impl can cope with remove() when a field and method share the name.

 * @modules jdk.compiler/com.sun.tools.javac.code

 *          jdk.compiler/com.sun.tools.javac.file

 *          jdk.compiler/com.sun.tools.javac.util

 */

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

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

import com.sun.tools.javac.code.Scope.*;

import com.sun.tools.javac.code.Symbol.*;

import com.sun.tools.javac.file.JavacFileManager;

public class RemoveSymbolUnitTest {

    Context context;

    Names names;

    Symtab symtab;

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

        new RemoveSymbolUnitTest().run();

    }

    public void run() {

        context = new Context();

        JavacFileManager.preRegister(context); // required by ClassReader which is required by Symtab

        names = Names.instance(context);

        symtab = Symtab.instance(context);

        Name hasNext =  names.fromString("hasNext");

        ClassSymbol clazz = new ClassSymbol(0,

                                            names.fromString("X"),

                                            Type.noType,

                                            symtab.unnamedPackage);

        VarSymbol v = new VarSymbol(0, hasNext, Type.noType, clazz);

        MethodSymbol m = new MethodSymbol(0, hasNext, Type.noType, clazz);

        // Try enter and remove in different shuffled combinations.

        // working with fresh scope each time.

        WriteableScope cs = WriteableScope.create(clazz);

        cs.enter(v);

        cs.enter(m);

        cs.remove(v);

        Symbol s = cs.findFirst(hasNext);

        if (s != m)

            throw new AssertionError("Wrong symbol");

        cs = WriteableScope.create(clazz);

        cs.enter(m);

        cs.enter(v);

        cs.remove(v);

        s = cs.findFirst(hasNext);

        if (s != m)

            throw new AssertionError("Wrong symbol");

        cs = WriteableScope.create(clazz);

        cs.enter(v);

        cs.enter(m);

        cs.remove(m);

        s = cs.findFirst(hasNext);

        if (s != v)

            throw new AssertionError("Wrong symbol");

        cs = WriteableScope.create(clazz);

        cs.enter(m);

        cs.enter(v);

        cs.remove(m);

        s = cs.findFirst(hasNext);

        if (s != v)

            throw new AssertionError("Wrong symbol");

    }

}