Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiType.java @ 4266:e2499e6d8aa7
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author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 11 Jan 2012 16:31:46 +0100 |
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1 /* |
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2 * Copyright (c) 2009, 2011, 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.max.cri.ri; |
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24 |
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25 import com.oracle.max.cri.ci.*; |
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26 |
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27 /** |
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28 * Represents a resolved or unresolved type in the compiler-runtime interface. Types include primitives, objects, {@code void}, |
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29 * and arrays thereof. |
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30 */ |
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31 public interface RiType { |
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32 |
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33 /** |
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34 * Represents each of the several different parts of the runtime representation of |
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35 * a type which compiled code may need to reference individually. These may or may not be |
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36 * different objects or data structures, depending on the runtime system. |
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37 */ |
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38 public enum Representation { |
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39 /** |
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40 * The runtime representation of the data structure containing the static fields of this type. |
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41 */ |
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42 StaticFields, |
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43 |
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44 /** |
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45 * The runtime representation of the Java class object of this type. |
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46 */ |
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47 JavaClass, |
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48 |
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49 /** |
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50 * The runtime representation of the "hub" of this type--that is, the closest part of the type |
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51 * representation which is typically stored in the object header. |
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52 */ |
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53 ObjectHub, |
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54 |
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55 /** |
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56 * The runtime representation of the type information for an object, which is typically used |
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57 * for subtype tests. |
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58 */ |
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59 TypeInfo |
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60 } |
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61 |
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62 /** |
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63 * Gets the name of this type in internal form. The following are examples of strings returned by this method: |
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64 * <pre> |
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65 * "Ljava/lang/Object;" |
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66 * "I" |
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67 * "[[B" |
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68 * </pre> |
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69 * |
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70 * @return the name of this type in internal form |
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71 */ |
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72 String name(); |
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73 |
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74 /** |
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75 * For array types, gets the type of the components. |
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76 * @return the component type of this array type |
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77 */ |
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78 RiType componentType(); |
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79 |
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80 /** |
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81 * Gets the type representing an array with elements of this type. |
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82 * @return a new compiler interface type representing an array of this type |
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83 */ |
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84 RiType arrayOf(); |
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85 |
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86 /** |
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87 * Gets the kind of this compiler interface type. |
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88 * @param architecture When true, the architecture-specific kind used for emitting machine code is returned. |
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89 * When false, the kind according to the Java specification is returned. |
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90 * @return the kind |
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91 */ |
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92 CiKind kind(boolean architecture); |
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93 |
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94 /** |
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95 * Gets the kind used to represent the specified part of this type. |
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96 * @param r the part of the this type |
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97 * @return the kind of constants for the specified part of the type |
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98 */ |
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99 CiKind getRepresentationKind(Representation r); |
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100 } |