/*

 * Copyright (c) 2009, 2019, 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.

 *

 */

package shared;

import java.util.List;

/**

 * Just a set of constants

 */

public class Utils {

    public static final String TARGET_METHOD_NAME = "m";

    public static int version = 50;

    public static boolean isACC_SUPER = false;

    public static void init(List<String> args) {

        for (String param : args) {

            String name = "classfile_version";

            String pattern = "--"+name+"=";

            if (param.startsWith(pattern)) {

                String value = param.substring(pattern.length());

                int majorVersion = 50;

                int minorVersion = 0;

                try {

                    String[] versions = value.split(":");

                    if (versions.length > 2) {

                        throw new RuntimeException(String.format("Unknown %s value: %s", name, value));

                    }

                    try {

                        majorVersion = Integer.parseInt(versions[0]);

                        if (versions.length > 1) {

                            minorVersion = Integer.parseInt(versions[1]);

                        }

                    } catch(Exception e) {

                        throw new RuntimeException(String.format("Can't parse %s value: '%s'", name, value));

                    }

                } catch (Exception e) {

                    System.out.println("ERROR: "+e.getMessage());

                }

                version = majorVersion + (minorVersion << 16);

                System.out.printf("INFO: Class file version: major: %d; minor: %d\n", majorVersion, minorVersion);

                if (majorVersion < 49 && !args.contains("--no_acc_super")) {

                    isACC_SUPER = true;

                    System.out.printf("INFO: Enabling ACC_SUPER flag for major: %d\nTo disable it, specify --no_acc_super option.\n", majorVersion, minorVersion);

                }

            } else if (param.equals("--no_acc_super")){

                System.out.println("INFO: ACC_SUPER flag is disabled");

                isACC_SUPER = false;

            } else if (param.equals("--acc_super")){

                isACC_SUPER = true;

            } else {

                System.out.println("ERROR: Unknown option: "+param);

                printHelp();

                System.exit(1);

            }

        }

    }

    public static void printHelp() {

        System.out.println(

                 "Supported parameters:\n"

               + "\t--classfile_version=major_version[:minor_version]\n"

               + "\t\t- specify class file version for generated classes\n"

               + "\t--no_acc_super\n"

               + "\t\t- don't add ACC_SUPER flag into generated classes\n"

               + "\t--acc_super\n"

               + "\t\t- force ACC_SUPER flag in generated classes\n"

               + "\t--dump\n"

               + "\t\t- dump generated classes\n"

               + "\t--noexecute\n"

               + "\t\t- print only expected results, don't execute tests\n"

        );

    }

    /*******************************************************************/

    public static String getInternalName(String s) {

        return s.replaceAll("\\.", "/");

    }

}