/*

 * Copyright (c) 2013, 2015, 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 8027789

 * @summary check that the direct superclass is used as the site when calling

 *          a superclass' method

 * @compile Base.java NonDirectSuper.java

 * @run main test.NonDirectSuper

 */

package test;

import java.io.File;

import com.sun.tools.classfile.Attribute;

import com.sun.tools.classfile.ClassFile;

import com.sun.tools.classfile.Code_attribute;

import com.sun.tools.classfile.ConstantPool.CPRefInfo;

import com.sun.tools.classfile.Instruction;

import com.sun.tools.classfile.Method;

import com.sun.tools.classfile.Opcode;

public class NonDirectSuper {

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

        new NonDirectSuper().run();

    }

    void run() {

        String workDir = System.getProperty("test.classes");

        File testPackage = new File(workDir, "test");

        for (File clazz : testPackage.listFiles()) {

            if ("NonDirectSuper.class".equals(clazz.getName())) continue;

            verifyInvokeSpecialRefToObject(clazz);

        }

    }

    void verifyInvokeSpecialRefToObject(File clazz) {

        try {

            final ClassFile cf = ClassFile.read(clazz);

            for (Method m : cf.methods) {

                Code_attribute codeAttr = (Code_attribute)m.attributes.get(Attribute.Code);

                for (Instruction instr : codeAttr.getInstructions()) {

                    if (instr.getOpcode() == Opcode.INVOKESPECIAL ||

                        instr.getOpcode() == Opcode.INVOKEVIRTUAL) {

                        int pc_index = instr.getShort(1);

                        CPRefInfo ref = (CPRefInfo)cf.constant_pool.get(pc_index);

                        String className = ref.getClassName();

                        String methodName = ref.getNameAndTypeInfo().getName();

                        if (methodName.equals("toString")) {

                            if (!className.equals("java/lang/Object"))

                                throw new IllegalStateException("Must directly refer to j.l.Object");

                        } else if (methodName.startsWith("refTo")) {

                            String expectedClass = methodName.substring("refTo".length());

                            if (!className.replace("/", "").equals(expectedClass)) {

                                throw new IllegalStateException("Unexpected reference to: " +

                                        className + ", should be " + expectedClass);

                            }

                        }

                    }

                    if (instr.getOpcode() == Opcode.GETFIELD ||

                        instr.getOpcode() == Opcode.PUTFIELD) {

                        int pc_index = instr.getShort(1);

                        CPRefInfo ref = (CPRefInfo)cf.constant_pool.get(pc_index);

                        String className = ref.getClassName();

                        String fieldName = ref.getNameAndTypeInfo().getName();

                        if (fieldName.startsWith("refTo")) {

                            String expectedClass = fieldName.substring("refTo".length());

                            if (!className.replace("/", "").equals(expectedClass)) {

                                throw new IllegalStateException("Unexpected reference to: " +

                                        className + ", should be " + expectedClass);

                            }

                        }

                    }

                }

            }

        } catch (Exception e) {

            e.printStackTrace();

            throw new Error("error reading " + clazz +": " + e);

        }

    }

}

class OtherPackageTest extends base.Base {

    void run() {

        new Runnable() {

            public void run() {

                OtherPackageTest.super.refTobaseBase();

                OtherPackageTest.super.refTobaseBase = OtherPackageTest.super.refTobaseBase + 1;

                OtherPackageTest.super.toString();

                refTotestOtherPackageTest();

                refTotestOtherPackageTest = refTotestOtherPackageTest + 1;

                OtherPackageTest.this.refTotestOtherPackageTest();

                OtherPackageTest.this.refTotestOtherPackageTest =

                        OtherPackageTest.this.refTotestOtherPackageTest + 1;

            }

        }.run();

        super.refTobaseBase();

        super.refTobaseBase = super.refTobaseBase + 1;

        super.toString();

        OtherPackageTest.super.refTobaseBase();

        OtherPackageTest.super.refTobaseBase = OtherPackageTest.super.refTobaseBase + 1;

        OtherPackageTest.super.toString();

        refTotestOtherPackageTest();

        refTotestOtherPackageTest = refTotestOtherPackageTest + 1;

    }

    static class InnerBase {

        private void refTotestOtherPackageTest$InnerBase() { }

    }

    static class InnerTest extends InnerBase {

        void run() {

            new Runnable() {

                public void run() {

                    InnerTest.super.refTotestOtherPackageTest$InnerBase();

                }

            }.run();

            super.refTotestOtherPackageTest$InnerBase();

            InnerTest.super.refTotestOtherPackageTest$InnerBase();

        }

    }

}

class CurPackagePrivateBase {

    void refTotestCurPackagePrivateExt() { }

    void refTotestCurPackagePrivateTest() { }

    int refTotestCurPackagePrivateExt;

    int refTotestCurPackagePrivateTest;

}

class CurPackagePrivateExt extends CurPackagePrivateBase {

}

class CurPackagePrivateTest extends CurPackagePrivateExt {

    void run() {

        new Runnable() {

            public void run() {

                CurPackagePrivateTest.super.refTotestCurPackagePrivateExt();

                CurPackagePrivateTest.super.refTotestCurPackagePrivateExt =

                        CurPackagePrivateTest.super.refTotestCurPackagePrivateExt + 1;

                CurPackagePrivateTest.this.refTotestCurPackagePrivateTest();

                CurPackagePrivateTest.this.refTotestCurPackagePrivateTest =

                        CurPackagePrivateTest.this.refTotestCurPackagePrivateTest + 1;

                refTotestCurPackagePrivateTest();

                refTotestCurPackagePrivateTest = refTotestCurPackagePrivateTest + 1;

            }

        }.run();

        super.refTotestCurPackagePrivateExt();

        super.refTotestCurPackagePrivateExt = super.refTotestCurPackagePrivateExt + 1;

        CurPackagePrivateTest.super.refTotestCurPackagePrivateExt();

        CurPackagePrivateTest.super.refTotestCurPackagePrivateExt =

                CurPackagePrivateTest.super.refTotestCurPackagePrivateExt + 1;

        refTotestCurPackagePrivateTest();

        refTotestCurPackagePrivateTest = refTotestCurPackagePrivateTest + 1;

    }

}