Mercurial > hg > truffle
annotate graal/com.oracle.jvmci.options/src/com/oracle/jvmci/options/NestedBooleanOptionValue.java @ 21696:ca140f8c35be
Empty pointer stamps are also non-null.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 03 Jun 2015 14:08:29 +0200 |
parents | b1530a6cce8c |
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rev | line source |
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Introduce NestedBooleanOptionValue.
Josef Eisl <josef.eisl@jku.at>
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1 /* |
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2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
21554
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renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
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23 package com.oracle.jvmci.options; |
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24 |
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25 /** |
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26 * A nested Boolean {@link OptionValue} that can be overridden by a {@link #masterOption master |
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27 * option}. |
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28 * <p> |
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29 * <li>If the option is present on the command line the specified value is used. |
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30 * <li>Otherwise {@link #getValue()} depends on the {@link #masterOption} and evaluates as follows: |
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31 * <ul> |
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32 * <li>If {@link #masterOption} is set, this value equals to {@link #initialValue}. |
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33 * <li>Otherwise, if {@link #masterOption} is {@code false}, this option is {@code false}. |
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34 */ |
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35 public class NestedBooleanOptionValue extends OptionValue<Boolean> { |
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36 private final OptionValue<Boolean> masterOption; |
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37 private final Boolean initialValue; |
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38 |
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39 public NestedBooleanOptionValue(OptionValue<Boolean> masterOption, Boolean initialValue) { |
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40 super(null); |
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41 this.masterOption = masterOption; |
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42 this.initialValue = initialValue; |
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43 } |
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44 |
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45 public OptionValue<Boolean> getMasterOption() { |
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46 return masterOption; |
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47 } |
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48 |
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49 @Override |
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50 public Boolean getValue() { |
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51 Boolean v = super.getValue(); |
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52 if (v == null) { |
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53 return initialValue && masterOption.getValue(); |
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54 } |
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55 return v; |
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56 } |
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57 |
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58 } |