Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiSignature.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 |
parents | aaac4894175c |
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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 method signature provided by the runtime. |
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29 * |
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30 * @see <a href="http://java.sun.com/docs/books/jvms/second_edition/html/ClassFile.doc.html#7035">Method Descriptors</a> |
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31 */ |
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32 public interface RiSignature { |
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33 /** |
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34 * Gets the number of arguments in this signature, adding 1 for a receiver if requested. |
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35 * |
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36 * @param receiver true if 1 is to be added to the result for a receiver |
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37 * @return the number of arguments + 1 iff {@code receiver == true} |
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38 */ |
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39 int argumentCount(boolean receiver); |
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40 |
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41 /** |
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42 * Gets the argument type at the specified position. This method will return a |
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43 * {@linkplain RiType#isResolved() resolved} type if possible but without |
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44 * triggering any class loading or resolution. |
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45 * |
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46 * @param index the index into the parameters, with {@code 0} indicating the first parameter |
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47 * @param accessingClass the context of the type lookup. If accessing class is resolved, its class loader |
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48 * is used to retrieve an existing resolved type. This value can be {@code null} if the caller does |
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49 * not care for a resolved type. |
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50 * @return the {@code index}'th argument type |
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51 */ |
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52 RiType argumentTypeAt(int index, RiType accessingClass); |
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53 |
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54 /** |
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55 * Gets the argument kind at the specified position. |
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56 * @param index the index into the parameters, with {@code 0} indicating the first parameter |
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57 * @param architecture When true, the architecture-specific kind used for emitting machine code is returned. |
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58 * When false, the kind according to the Java specification is returned. |
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59 * @return the kind of the argument at the specified position |
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60 */ |
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61 CiKind argumentKindAt(int index, boolean architecture); |
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62 |
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63 /** |
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64 * Gets the return type of this signature. This method will return a |
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65 * {@linkplain RiResolvedType resolved} type if possible but without |
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66 * triggering any class loading or resolution. |
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67 * |
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68 * @param accessingClass the context of the type lookup. If accessing class is resolved, its class loader |
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69 * is used to retrieve an existing resolved type. This value can be {@code null} if the caller does |
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70 * not care for a resolved type. |
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71 * @return the compiler interface type representing the return type |
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72 */ |
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73 RiType returnType(RiType accessingClass); |
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74 |
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75 /** |
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76 * Gets the return kind of this signature. |
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77 * @param architectureSpecific When true, the architecture-specific kind used for emitting machine code is returned. |
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78 * When false, the kind according to the Java specification is returned. |
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79 * @return the return kind |
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80 */ |
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81 CiKind returnKind(boolean architectureSpecific); |
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82 |
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83 /** |
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84 * Converts this signature to a string. |
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85 * @return the signature as a string |
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86 */ |
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87 String asString(); |
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88 |
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89 /** |
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90 * Gets the size, in Java slots, of the arguments to this signature. |
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91 * @param withReceiver {@code true} if to add a slot for a receiver object; {@code false} not to include the receiver |
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92 * @return the size of the arguments in slots |
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93 */ |
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94 int argumentSlots(boolean withReceiver); |
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95 } |