Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiConstantPool.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 /** |
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26 * Represents the runtime representation of the constant pool that is |
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27 * used by the compiler when parsing bytecode. The {@code lookupXXX} methods look up a constant |
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28 * pool entry without performing resolution, and are used during compilation. |
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29 */ |
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30 public interface RiConstantPool { |
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31 |
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32 /** |
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33 * Makes sure that the type referenced by the specified constant pool entry is loaded and |
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34 * initialized. This can be used to compile time resolve a type. It works for field, method, |
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35 * or type constant pool entries. |
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36 * @param cpi the index of the constant pool entry that references the type |
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37 * @param opcode the opcode of the instruction that references the type |
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38 */ |
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39 void loadReferencedType(int cpi, int opcode); |
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40 |
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41 /** |
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42 * Looks up a reference to a field. If {@code opcode} is non-negative, then resolution checks |
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43 * specific to the JVM instruction it denotes are performed if the field is already resolved. |
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44 * Should any of these checks fail, an {@linkplain RiField#isResolved() unresolved} |
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45 * field reference is returned. |
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46 * |
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47 * @param cpi the constant pool index |
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48 * @param opcode the opcode of the instruction for which the lookup is being performed or {@code -1} |
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49 * @return a reference to the field at {@code cpi} in this pool |
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50 * @throws ClassFormatError if the entry at {@code cpi} is not a field |
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51 */ |
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52 RiField lookupField(int cpi, int opcode); |
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53 |
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54 /** |
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55 * Looks up a reference to a method. If {@code opcode} is non-negative, then resolution checks |
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56 * specific to the JVM instruction it denotes are performed if the method is already resolved. |
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57 * Should any of these checks fail, an {@linkplain RiMethod#isResolved() unresolved} |
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58 * method reference is returned. |
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59 * |
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60 * @param cpi the constant pool index |
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61 * @param opcode the opcode of the instruction for which the lookup is being performed or {@code -1} |
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62 * @return a reference to the method at {@code cpi} in this pool |
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63 * @throws ClassFormatError if the entry at {@code cpi} is not a method |
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64 */ |
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65 RiMethod lookupMethod(int cpi, int opcode); |
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66 |
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67 /** |
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68 * Looks up a reference to a type. If {@code opcode} is non-negative, then resolution checks |
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69 * specific to the JVM instruction it denotes are performed if the type is already resolved. |
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70 * Should any of these checks fail, an {@linkplain RiType#isResolved() unresolved} |
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71 * type reference is returned. |
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72 * |
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73 * @param cpi the constant pool index |
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74 * @param opcode the opcode of the instruction for which the lookup is being performed or {@code -1} |
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75 * @return a reference to the compiler interface type |
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76 */ |
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77 RiType lookupType(int cpi, int opcode); |
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78 |
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79 /** |
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80 * Looks up a method signature. |
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81 * |
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82 * @param cpi the constant pool index |
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83 * @return the method signature at index {@code cpi} in this constant pool |
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84 */ |
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85 RiSignature lookupSignature(int cpi); |
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86 |
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87 /** |
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88 * Looks up a constant at the specified index. |
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89 * @param cpi the constant pool index |
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90 * @return the {@code CiConstant} instance representing the constant |
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91 */ |
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92 Object lookupConstant(int cpi); |
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93 } |