| /* |
| * This file is part of the Jikes RVM project (http://jikesrvm.org). |
| * |
| * This file is licensed to You under the Common Public License (CPL); |
| * You may not use this file except in compliance with the License. You |
| * may obtain a copy of the License at |
| * |
| * http://www.opensource.org/licenses/cpl1.0.php |
| * |
| * See the COPYRIGHT.txt file distributed with this work for information |
| * regarding copyright ownership. |
| */ |
| package org.vmutil.options; |
| |
| import org.vmmagic.pragma.Uninterruptible; |
| import org.vmmagic.unboxed.Address; |
| |
| /** |
| * An option with a simple integer value. |
| */ |
| public class AddressOption extends Option { |
| // values |
| protected Address defaultValue; |
| protected Address value; |
| |
| /** |
| * Create a new int option. |
| * |
| * @param set The option set this option belongs to. |
| * @param name The space separated name for the option. |
| * @param desc The purpose of the option |
| * @param defaultValue The default value of the option. |
| */ |
| protected AddressOption(OptionSet set, String name, String desc, Address defaultValue) { |
| super(set, ADDRESS_OPTION, name, desc); |
| this.value = this.defaultValue = defaultValue; |
| } |
| |
| /** |
| * Read the current value of the option. |
| * |
| * @return The option value. |
| */ |
| @Uninterruptible |
| public Address getValue() { |
| return this.value; |
| } |
| |
| /** |
| * Read the default value of the option. |
| * |
| * @return The default value. |
| */ |
| @Uninterruptible |
| public Address getDefaultValue() { |
| return this.defaultValue; |
| } |
| |
| /** |
| * Update the value of the option, echoing the change if the echoOptions |
| * option is set. This method also calls the validate method to allow |
| * subclasses to perform any required validation. |
| * |
| * @param value The new value for the option. |
| */ |
| public void setValue(int value) { |
| this.value = Address.fromIntZeroExtend(value); |
| validate(); |
| set.logChange(this); |
| } |
| |
| /** |
| * Modify the default value of the option. |
| * |
| * @param value The new default value for the option. |
| */ |
| public void setDefaultValue(Address value) { |
| this.value = this.defaultValue = value; |
| } |
| } |