Mercurial > hg > graal-jvmci-8
annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotSignature.java @ 2288:8c426c2891c8
client/server: new interface Remote marks classes that should not be serialized, but called remotely
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Mon, 11 Apr 2011 10:37:24 +0200 |
parents | 569d3fe7d65c |
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1 /* |
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2 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. |
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3 * |
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product |
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5 * that is described in this document. In particular, and without limitation, these intellectual property |
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6 * rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or |
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7 * more additional patents or pending patent applications in the U.S. and in other countries. |
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8 * |
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun |
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10 * Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its |
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11 * supplements. |
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12 * |
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13 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or |
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14 * registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks |
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15 * are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the |
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16 * U.S. and other countries. |
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17 * |
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18 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open |
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19 * Company, Ltd. |
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20 */ |
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21 package com.sun.hotspot.c1x; |
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22 |
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23 import java.util.*; |
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24 |
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25 import com.sun.cri.ci.*; |
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26 import com.sun.cri.ri.*; |
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27 |
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28 /** |
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29 * Represents a method signature. |
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30 * |
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31 * @author Thomas Wuerthinger, Lukas Stadler |
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32 */ |
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33 public class HotSpotSignature extends CompilerObject implements RiSignature { |
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34 |
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35 private final List<String> arguments = new ArrayList<String>(); |
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36 private final String returnType; |
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37 private final String originalString; |
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38 private RiType[] argumentTypes; |
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39 private RiType returnTypeCache; |
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40 |
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41 public HotSpotSignature(Compiler compiler, String signature) { |
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42 super(compiler); |
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43 assert signature.length() > 0; |
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44 this.originalString = signature; |
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45 |
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46 if (signature.charAt(0) == '(') { |
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47 int cur = 1; |
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48 while (cur < signature.length() && signature.charAt(cur) != ')') { |
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49 int nextCur = parseSignature(signature, cur); |
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50 arguments.add(signature.substring(cur, nextCur)); |
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51 cur = nextCur; |
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52 } |
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53 |
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54 cur++; |
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55 int nextCur = parseSignature(signature, cur); |
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56 returnType = signature.substring(cur, nextCur); |
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57 assert nextCur == signature.length(); |
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58 } else { |
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59 returnType = null; |
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60 } |
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61 } |
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62 |
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63 private int parseSignature(String signature, int cur) { |
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64 char first; |
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65 do { |
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66 first = signature.charAt(cur++); |
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67 } while (first == '['); |
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68 |
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69 switch (first) { |
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70 case 'L': |
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71 while (signature.charAt(cur) != ';') { |
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72 cur++; |
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73 } |
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74 cur++; |
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75 break; |
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76 case 'V': |
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77 case 'I': |
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78 case 'B': |
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79 case 'C': |
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80 case 'D': |
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81 case 'F': |
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82 case 'J': |
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83 case 'S': |
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84 case 'Z': |
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85 break; |
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86 default: |
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87 assert false; |
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88 } |
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89 return cur; |
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90 } |
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91 |
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92 @Override |
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93 public int argumentCount(boolean withReceiver) { |
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94 return arguments.size() + (withReceiver ? 1 : 0); |
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95 } |
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96 |
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97 @Override |
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98 public CiKind argumentKindAt(int index) { |
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99 return CiKind.fromTypeString(arguments.get(index)); |
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100 } |
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101 |
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102 @Override |
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103 public int argumentSlots(boolean withReceiver) { |
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104 |
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105 int argSlots = 0; |
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106 for (int i = 0; i < argumentCount(false); i++) { |
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107 argSlots += argumentKindAt(i).sizeInSlots(); |
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108 } |
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109 |
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110 return argSlots + (withReceiver ? 1 : 0); |
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111 } |
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112 |
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113 @Override |
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114 public RiType argumentTypeAt(int index, RiType accessingClass) { |
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115 if (argumentTypes == null) { |
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116 argumentTypes = new RiType[arguments.size()]; |
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117 } |
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118 RiType type = argumentTypes[index]; |
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119 if (type == null) { |
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120 type = compiler.getVMEntries().RiSignature_lookupType(arguments.get(index), (HotSpotTypeResolved) accessingClass); |
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121 argumentTypes[index] = type; |
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122 } |
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123 return type; |
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124 } |
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125 |
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126 @Override |
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127 public String asString() { |
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128 return originalString; |
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129 } |
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130 |
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131 @Override |
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132 public CiKind returnKind() { |
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133 return CiKind.fromTypeString(returnType); |
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134 } |
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135 |
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136 @Override |
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137 public RiType returnType(RiType accessingClass) { |
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138 if (returnTypeCache == null) { |
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139 returnTypeCache = compiler.getVMEntries().RiSignature_lookupType(returnType, (HotSpotTypeResolved) accessingClass); |
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140 } |
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141 return returnTypeCache; |
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142 } |
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143 |
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144 @Override |
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145 public String toString() { |
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146 return "HotSpotSignature<" + originalString + ">"; |
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147 } |
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148 |
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149 } |