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annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Value.java @ 9422:149fe42411df

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Use platform specific kind in backend.
author Roland Schatz <roland.schatz@oracle.com>
date Tue, 30 Apr 2013 12:00:13 +0200
parents 1342574c4f7d
children 3c9aeef2702c
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1 /*
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2 * Copyright (c) 2009, 2012, 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 */
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23 package com.oracle.graal.api.meta;
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24
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25 import java.io.*;
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26
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27 /**
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28 * Abstract base class for values manipulated by the compiler. All values have a {@linkplain Kind
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29 * kind} and are immutable.
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30 */
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31 public abstract class Value implements Serializable {
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32
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33 private static final long serialVersionUID = -6909397188697766469L;
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34
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35 @SuppressWarnings("serial") public static final AllocatableValue ILLEGAL = new AllocatableValue(Kind.Illegal) {
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36
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37 @Override
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38 public String toString() {
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39 return "-";
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40 }
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41 };
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42
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43 private final Kind kind;
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44 private final PlatformKind platformKind;
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45
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46 /**
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47 * Initializes a new value of the specified kind.
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48 *
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49 * @param platformKind the kind
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50 */
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51 protected Value(PlatformKind platformKind) {
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52 this.platformKind = platformKind;
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53 if (platformKind instanceof Kind) {
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54 this.kind = (Kind) platformKind;
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55 } else {
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56 this.kind = Kind.Illegal;
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57 }
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58 }
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59
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60 /**
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61 * Returns a String representation of the kind, which should be the end of all
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62 * {@link #toString()} implementation of subclasses.
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63 */
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64 protected final String getKindSuffix() {
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65 return "|" + getKind().getTypeChar();
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66 }
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68 /**
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69 * Returns the kind of this value.
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70 */
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71 public final Kind getKind() {
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72 return kind;
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73 }
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75 /**
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76 * Returns the platform specific kind used to store this value.
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77 */
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78 public final PlatformKind getPlatformKind() {
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79 return platformKind;
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80 }
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81 }