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annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Value.java @ 6477:d93bff9fecb6

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added temps used by a call to CallingConvention
author Doug Simon <doug.simon@oracle.com>
date Tue, 02 Oct 2012 13:48:16 +0200
parents 92bc58dc5b5e
children 2463eb24b644
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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 kind} and are immutable.
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29 */
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30 public abstract class Value implements Serializable {
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31 private static final long serialVersionUID = -6909397188697766469L;
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32
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33 public static final Value[] NONE = {};
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34
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35 @SuppressWarnings("serial")
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36 public static final Value IllegalValue = new Value(Kind.Illegal) {
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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 /**
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44 * The kind of this value.
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45 */
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46 private final Kind kind;
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48 /**
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49 * Initializes a new value of the specified kind.
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50 * @param kind the kind
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51 */
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52 protected Value(Kind kind) {
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53 this.kind = kind;
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54 }
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55
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56 /**
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57 * String representation of the kind, which should be the end of all {@link #toString()} implementation of subclasses.
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58 */
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59 protected final String kindSuffix() {
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60 return "|" + getKind().typeChar;
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61 }
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62
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63 /**
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64 * Gets the kind of the value.
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65 * @return the kind
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66 */
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67 public final Kind getKind() {
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68 return kind;
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69 }
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70 }