/*
 * Copyright (c) 2013, 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 jdk.vm.ci.options;

import java.lang.annotation.*;

/**
 * Describes the attributes of an option whose {@link OptionValue value} is in a static field
 * annotated by this annotation type.
 *
 * @see OptionDescriptor
 */
@Retention(RetentionPolicy.CLASS)
@Target(ElementType.FIELD)
public @interface Option {

    /**
     * Gets a help message for the option. New lines can be embedded in the message with
     * {@code "%n"}.
     */
    String help();

    /**
     * The name of the option. By default, the name of the annotated field should be used.
     */
    String name() default "";

    /**
     * Specifies the type of the option.
     */
    OptionType type() default OptionType.Debug;
}