Mercurial > hg > graal-jvmci-8
annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotSignature.java @ 1416:1b41af477605
Added HotSpotVM project Java source files.
author | Thomas Wuerthinger <thomas.wuerthinger@gmail.com> |
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date | Wed, 23 Jun 2010 16:36:58 +0200 |
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children | 44efca8a02d6 |
rev | line source |
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Added HotSpotVM project Java source files.
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1 package com.sun.hotspot.c1x; |
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2 |
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3 import java.util.ArrayList; |
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4 import java.util.List; |
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5 |
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6 import com.sun.cri.ci.CiKind; |
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7 import com.sun.cri.ri.RiSignature; |
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8 import com.sun.cri.ri.RiType; |
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9 |
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10 public class HotSpotSignature implements RiSignature { |
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11 |
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12 private final List<String> arguments = new ArrayList<String>(); |
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13 private final String returnType; |
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14 private final String originalString; |
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15 |
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16 public HotSpotSignature(String signature) { |
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17 |
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18 assert signature.length() > 0; |
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19 this.originalString = signature; |
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20 |
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21 if (signature.charAt(0) == '(') { |
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22 int cur = 1; |
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23 while (cur < signature.length() && signature.charAt(cur) != ')') { |
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24 int nextCur = parseSignature(signature, cur); |
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25 arguments.add(signature.substring(cur, nextCur)); |
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26 cur = nextCur; |
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27 } |
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28 |
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29 cur++; |
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30 int nextCur = parseSignature(signature, cur); |
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31 returnType = signature.substring(cur, nextCur); |
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32 assert nextCur == signature.length(); |
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33 } else { |
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34 returnType = null; |
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35 } |
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36 } |
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37 |
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38 private int parseSignature(String signature, int cur) { |
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39 |
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40 char first = signature.charAt(cur); |
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41 switch (first) { |
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42 |
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43 case '[': |
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44 return parseSignature(signature, cur + 1); |
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45 |
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46 case 'L': |
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47 while (signature.charAt(cur) != ';') |
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48 cur++; |
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49 cur++; |
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50 break; |
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51 |
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52 case 'V': |
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53 case 'I': |
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54 case 'B': |
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55 case 'C': |
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56 case 'D': |
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57 case 'F': |
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58 case 'J': |
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59 case 'S': |
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60 case 'Z': |
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61 cur++; |
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62 break; |
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63 |
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64 default: |
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65 assert false; |
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66 |
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67 } |
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68 |
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69 return cur; |
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70 } |
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71 |
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72 @Override |
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73 public int argumentCount(boolean withReceiver) { |
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74 return arguments.size() + (withReceiver ? 1 : 0); |
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75 } |
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76 |
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77 @Override |
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78 public CiKind argumentKindAt(int index) { |
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79 CiKind kind = CiKind.fromTypeString(arguments.get(index)); |
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80 System.out.println("argument kind: " + index + " is " + kind); |
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81 return kind; |
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82 } |
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83 |
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84 @Override |
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85 public int argumentSlots(boolean withReceiver) { |
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86 |
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87 int argSlots = 0; |
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88 for (int i = 0; i < argumentCount(false); i++) { |
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89 argSlots += argumentKindAt(i).sizeInSlots(); |
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90 } |
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91 |
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92 return argSlots + (withReceiver ? 1 : 0); |
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93 } |
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94 |
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95 @Override |
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96 public RiType argumentTypeAt(int index, RiType accessingClass) { |
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97 System.out.println("argument type at " + index); |
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98 Object accessor = null; |
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99 if (accessingClass instanceof HotSpotType) { |
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100 accessor = ((HotSpotType)accessingClass).klassOop; |
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101 } |
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102 return VMEntries.RiSignature_lookupType(arguments.get(index), accessor); |
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103 } |
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104 |
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105 @Override |
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106 public String asString() { |
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107 return originalString; |
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108 } |
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109 |
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110 @Override |
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111 public CiKind returnKind() { |
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112 return CiKind.fromTypeString(returnType); |
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113 } |
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114 |
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115 @Override |
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116 public RiType returnType(RiType accessingClass) { |
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117 return VMEntries.RiSignature_lookupType(returnType, accessingClass); |
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118 } |
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119 |
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120 } |