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 *

 * This code is free software; you can redistribute it and/or modify it

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 * 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 4916263

 *  @summary Test

 *

 *  @author Serguei Spitsyn

 *

 *  @run build TestScaffold VMConnection TargetListener TargetAdapter

 *  @run compile -g LocalVariableEqual.java

 *  @run driver LocalVariableEqual

 */

import com.sun.jdi.*;

import com.sun.jdi.event.*;

import com.sun.jdi.request.*;

import java.util.*;

    /********** target program **********/

class LocalVariableEqualTarg {

    public static void main(String[] args){

        int intVar = 10;

        System.out.println("LocalVariableEqualTarg: Started");

        intVar = staticMeth(intVar);

        System.out.println("LocalVariableEqualTarg: Finished");

    }

    public static int staticMeth(int intArg) {

        System.out.println("staticMeth: Started");

        int result;

        {

             { boolean bool_1 = false;

               intArg++;

               {

                 { byte byte_2 = 2;

                   intArg++;

                 }

                 byte byte_1 = 1;

                 intArg++;

               }

             }

             boolean bool_2 = true;

             intArg++;

        }

        {

             {

               {

                 { char   char_1 = '1';

                   intArg++;

                 }

                 short  short_1 = 1;

                 intArg++;

               }

             }

             { short  short_2 = 2;

               intArg++;

             }

             char   char_2 = '2';

             intArg++;

        }

        {

             { int int_1 = 1;

               intArg++;

             }

             long long_1 = 1;

             intArg++;

        }

        {

             { float  float_1 = 1;

               intArg++;

             }

             double double_2 = 2;

             intArg++;

        }

        {

             { String string_1 = "1";

               intArg++;

             }

             Object obj_2 = new Object();

             intArg++;

        }

        result = 10;

        System.out.println("staticMeth: Finished");

        return result;

    }

}

    /********** test program **********/

public class LocalVariableEqual extends TestScaffold {

    ReferenceType targetClass;

    ThreadReference mainThread;

    LocalVariableEqual (String args[]) {

        super(args);

    }

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

        new LocalVariableEqual(args).startTests();

    }

    /********** test assist **********/

    Method getMethod(String className, String methodName) {

        List refs = vm().classesByName(className);

        if (refs.size() != 1) {

            failure("Test failure: " + refs.size() +

                    " ReferenceTypes named: " + className);

            return null;

        }

        ReferenceType refType = (ReferenceType)refs.get(0);

        List meths = refType.methodsByName(methodName);

        if (meths.size() != 1) {

            failure("Test failure: " + meths.size() +

                    " methods named: " + methodName);

            return null;

        }

        return (Method)meths.get(0);

    }

    void printVariable(LocalVariable lv, int index) throws Exception {

        if (lv == null) {

            println(" Var  name: null");

            return;

        }

        String tyname = lv.typeName();

        println(" Var: " + lv.name() + ", index: " + index + ", type: " + tyname +

                ", Signature: " + lv.type().signature());

        // Sorry, there is no way to take local variable slot numbers using JDI!

        // It is because method LocalVariableImpl.slot() is private.

    }

    void compareTwoEqualVars(LocalVariable lv1, LocalVariable lv2) {

        if (lv1.equals(lv2)) {

            println(" Success: equality of local vars detected");

        } else {

            failure(" Failure: equality of local vars is NOT detected");

        }

        if (lv1.hashCode() == lv2.hashCode()) {

            println(" Success: hashCode's of equal local vars are equal");

        } else {

            failure(" Failure: hashCode's of equal local vars differ");

        }

        if (lv1.compareTo(lv2) == 0) {

            println(" Success: compareTo() is correct for equal local vars");

        } else {

            failure(" Failure: compareTo() is NOT correct for equal local vars");

        }

    }

    void compareTwoDifferentVars(LocalVariable lv1, LocalVariable lv2) {

        if (!lv1.equals(lv2)) {

            println(" Success: difference of local vars detected");

        } else {

            failure(" Failure: difference of local vars is NOT detected");

        }

        if (lv1.hashCode() != lv2.hashCode()) {

            println(" Success: hashCode's of different local vars differ");

        } else {

            failure(" Failure: hashCode's of different local vars are equal");

        }

        if (lv1.compareTo(lv2) != 0) {

            println(" Success: compareTo() is correct for different local vars");

        } else {

            failure(" Failure: compareTo() is NOT correct for different local vars");

        }

    }

    void compareAllVariables(String className, String methodName) throws Exception {

        println("compareAllVariables for method: " + className + "." + methodName);

        Method method = getMethod(className, methodName);

        List localVars;

        try {

            localVars = method.variables();

            println("\n Success: got a list of all method variables: " + methodName);

        }

        catch (com.sun.jdi.AbsentInformationException ex) {

            failure("\n AbsentInformationException has been thrown");

            return;

        }

        // We consider N*N combinations for set of N variables

        int index1 = 0;

        for (Iterator it1 = localVars.iterator(); it1.hasNext(); index1++) {

            LocalVariable lv1 = (LocalVariable) it1.next();

            int index2 = 0;

            for (Iterator it2 = localVars.iterator(); it2.hasNext(); index2++) {

                LocalVariable lv2 = (LocalVariable) it2.next();

                println("\n Two variables:");

                printVariable(lv1, index1);

                printVariable(lv2, index2);

                println("");

                if (index1 == index2) {

                    compareTwoEqualVars(lv1, lv2);

                } else {

                    compareTwoDifferentVars(lv1, lv2);

                }

            }

        }

        println("");

        return;

    }

    /********** test core **********/

    protected void runTests() throws Exception {

        /*

         * Get to the top of main() to determine targetClass and mainThread

         */

        BreakpointEvent bpe = startToMain("LocalVariableEqualTarg");

        println("startToMain(LocalVariableEqualTarg)");

        compareAllVariables("LocalVariableEqualTarg", "staticMeth");

        /*

         * resume until the end

         */

        listenUntilVMDisconnect();

        /*

         * deal with results of test

         * if anything has called failure("foo") testFailed will be true

         */

        if (!testFailed) {

            println("\nLocalVariableEqual: passed");

        } else {

            throw new Exception("\nLocalVariableEqual: FAILED");

        }

    }

}